The most popular time to visit is July, August. Winter will be warmer than normal, with the coldest periods in mid-November and early February. The hot season lasts for 2.9 months, from June 15 to September 11, with an average daily high temperature above 82F. WIND SPEED: The coldest month, January has days with highs of 36F . Precipitation Data for Boise, ID 83705. Rainfall In February, the rain falls for 11.7 days. Partly cloudy. Sittel, and D. Ross, 1997: The Winter of '96-'97: West Coast Flooding. Questions? BEAR RIVER AT IDAHO-UTAH STATE LINE. The calmest month of the year in Boise is September, with an average hourly wind speed of 6.3 miles per hour. Because much of the moisture from wet Pacific air masses is lost when they cross the mountains ranges to our west, Boise has its high desert semi-arid climate typical of many areas of the Inland Pacific Northwest or northern Great Basin. Boise's Monthly & Seasonal Snow Totals Sunny. On May 20, Jackson Lake, near the headwaters of the Snake River, was 23% full. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 23% on November 11. The extensive low clouds and widespread fog when combined with the long hours of winter darkness and cold will enhance the overall gloominess to weather conditions at this time of year. For six days a year on average, the amount of new snow totals at least an inch. The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. Details on observations and projections are available on the Technical Details and Additional Information page. Boise Precipitation Return Frequency, Boise's First and Last Snow Fall From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures ( 32F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). In Boise, the summers are short, hot, dry, and mostly clear and the winters are very cold, snowy, and partly cloudy. For each station, the records are corrected for the elevation difference between that station and Boise according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. A climate graph showing rainfall, temperatures and normals. MERRA-2 Modern-Era Retrospective Analysis. Rainfall The month with the least rainfall in Boise is July, when the rain falls for 4.5 days and typically collects 0.2" (5mm) of precipitation. The average hourly temperature, color coded into bands. * We've detected you're using a mobile device. The climate data come from weather measurements made at Boise Airport. Tools Environment. StreamflowForecasts A large variety of native and non-native trees thrive in the Boise River Basin. Click the copy button above. (since 1940). This website contains copyrighted images. Flood Awareness Guide for the Gem State. Multiple locations were found. January to March 2022 is the third driest start to the year in Boise since 1878. It is the largest National Park in America, the oldest national park in the world and one of the most beautiful natural areas worldwide. The cloudier part of the year begins around October 13 and lasts for 7.9 months, ending around June 10. May Jun. The river basin and its reservoir storage areas at Lucky Peak and Arrow Rock Dams are an important source of irrigation water for the area and provide abundant recreation opportunities. Michael LeCompte, Digital Content Producer. It is during these foggy and low cloud events when valley temperatures may not deviate by more than a few degrees from high to low temperature. Mark Edward Dooley is facing those charges in Valley County, according to court records. Jul. National Resources Defense Council, New York, NY. The drier season lasts 4.7 months, from June 1 to October 23. Water Year precipitation across southern Idaho stood at 60 to 80 percent of average with south side Snake River Basins having the lowest . Cascade National Oceanic and Atmospheric Administration, Forecast Precipitation Summary. Extreme weather and weather-related events in Idaho include severe winter storms, wildfires, floods, droughts, and heat and cold waves. Please select one of the following: National Centers for Environmental Information, Boise's Yearly Total of 100 degree Days or Warmer, Boise's Consecutive Days of 100 degrees or Warmer, Boise's Yearly Total of 0 degree Days or Colder, Boise's Consecutive Days of 0 degrees or Colder, Boise's Daily Snowfall Records by Calendar Day, Southeast Oregon and SouthwestIdaho Frost Data, National Oceanic and Atmospheric Administration. Jul. Apr. Climate Data Online (CDO) provides free access to NCDC's archive of global historical weather and climate data in addition to station history information. Humidity July is the least humid month in Boise, with an average relative humidity of 30%. Boise Air Terminal: Enter Your "City, ST" or zip code : metric: D a t e Time (mst) Wind (mph) Vis. The bulk of the annual precipitation is received between November and May with three quarters of the amount. Vermont is one of the nicest states in the US. Weather Highlights That is not to say that Boise does not have strong winds at times. Monthly averages Boise Longitude: -116.215, Latitude: 43.6187 Average weather Boise, ID - 83702. The perceived humidity level in Boise, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout. On average, August is the driest month with 0.2 inches (4 mm) of precipitation. The all time record high temperature at Boise was 111F degrees set on 19 July 1960 while the record low was 25 degrees below zero set on 22 December 1990. Click here (or on image to left) to view the most recent report issued at the beginning of each month. ** Beginning Oct 1, 2021, the Snow Survey & Water Supply Forecasting Program transitioned to new hydroclimatic normals for the most recent 30-year period (1991-2020), please see our special report . DST Changes. boise past weather data including previous temperature, barometric pressure, humidity, dew point, rain total, and wind conditions. Questions? Southeast Oregon and SouthwestIdaho Frost Data In January, average low temperature is colder in Boise (25.5F) than in Coeur DAlene (26.2F). Spracklen, D.V., L.J. Top 40 Warmest Boise Summers The number of warm nights (Figure 3) has been above average since 2000, exceeding the previous highest values of the late 1920s and 1930s. MRCC, n.d.: cli-MATE: MRCC Application The average annual temperature in Boise is 11.0 C | 51.7 F. WIND DIRECTION: Find our. Home | Privacy & Cookies | Contact | About. Modify your browser's settings to allow Javascript to execute. The annual precipitation totals are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information. The hot season lasts for 2.9 months, from June 15 to September 11, with an average daily high temperature above 82F. Indicators of Climate Change in Idaho Report Summary: Understanding Climate The breakup of low cloud and fog in Boise is highly dependent on wind direction and speed, strength of weather systems passing over the area , and time of year. Dobson, 2013: National Climatic Data Center, Research Customer Service Group, Asheville, NC, The water year total precipitation in the two basins is still above normal, ranging from 105 to 135 percent of normal, according to the report. Jul. With an average relative humidity of 30%, July is the least humid month. This situation is most likely if it occurs during the period from Thanksgiving to Valentines Day when stagnant high pressure systems usually move over the area and stall. URL: https://waterdata.usgs.gov/id/nwis/current?group_key=basin_cd&precipitation_interval=p01h_va,p03h_va,p06h_va,p12h_va,p24h_va,p02d_va,p07d_va&PARAmeter_cd=STATION_NM,DATETIME,00045 Data: 1991 - 2021 Min. Sredno Konjare, Macedonia (5,981 miles away); li, Turkey (6,492 miles); and Ormyeh, Iran (6,715 miles) are the far-away foreign places with temperatures most similar to Boise (view comparison). search the site, Beginning Oct 1, 2021, the Snow Survey & Water Supply Forecasting Program transitioned to new hydroclimatic normals for the most recent 30-year period (1991-2020), please see our, Month to Date Precipitation (NRCSSNOTEL), Water Year to Date Precipitation (NRCSSNOTEL), Natural Resources 22 pp. Boise's Daily Snowfall Records by Year The majority of precipitation falls during the cool season (NovemberMay). Page Last Modified: 2023-03-01 21:54:59 EST July is the warmest month of the year. The Valley and the surrounding agricultural land is heavily dependent on irrigation, with this moisture playing a role in modifying the local climate of the Valley to some extent. The coldest month of the year in Boise is January, with an average low of 25F and high of 38F. Local sources of surface water are the Boise River meandering through the city and the Snake River 20 miles to the south. The month's total of 15 inches at Boise was nearly three times normal, making it the snowiest December since 2008. The daily measured quantity of liquid or liquid-equivalent precipitation. As with precipitation, Idaho's temperature climate exhibits regional variation. On average, the recorded minimum temperature is 49F. The effect from all these Mountain ranges is to make Boise and the Treasure Valley semi-arid with relatively mild winters for its northern location. 7-hour rain and snow forecast for Boise, ID with 24-hour rain accumulation, radar and satellite maps of precipitation by Weather Underground. The darker period of the year lasts for 3.6 months, from October 30 to February 15, with an average daily incident shortwave energy per square meter below 2.9 kWh. The growing season in Boise typically lasts for 5.9 months (179 days), from around April 23 to around October 19, rarely starting before March 31 or after May 16, and rarely ending before September 26 or after November 10. (1940-present), Boise Monthly Precipitation Extremes Boise weather averages and climate Boise, Idaho. Station name. Abbreviations. Precipitation was below normal in some areas and above normal in others. Since 1940, Boise has averaged 0.82 inches of precipitation in June. The tourism score favors clear, rainless days with perceived temperatures between 65F and 80F. Boise, IDNational Interagency Fire Center3833 S. Development Ave., Bldg 3807Boise, ID 83705-5354(208) 334-9860Comments? Observed Weather in 2022 in Boise Link . Logan, R.C. The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The average hourly wind speed in Boise experiences mild seasonal variation over the course of the year. (since 1940), Boise-wide Seasonal Precipitation & Rankings The lowest recorded temperature in Boise is -25.0F (-31.7C), which was recorded in December. The average temperature in Boise in March for a typical day ranges from a high of 52F (11C) to a low of 32F (-0C). precipitation in For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Sun & Moon. FOGLOW CLOUDS AND INVERSION IMPACTS: Boise's "Hot" Streak Records The windier part of the year lasts for 4.4 months, from February 8 to June 21, with average wind speeds of more than 6.9 miles per hour. All NOAA. However, more rain is on the way Tuesday, bringing . The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest). Our beach/pool temperature score is 0 for perceived temperatures below 65F, rising linearly to 9 for 75F, to 10 for 82F, falling linearly to 9 for 90F, and to 1 for 100F or hotter. Holiday Weather. The greatest amount of precipitation occurs in December, with an average of 53 mm | 2.1 inch. The elevation difference between these valley endpoints is 850 feet. The percentage of time spent at various humidity comfort levels, categorized by dew point. For print usage, please acquire a license. Afternoon maximum temperatures are about 5 degrees F higher than if the winds were northwest during the afternoon. To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. NOAA NCEI, 2013: State of the Climate: Precipitation in inches. April is the last month it regularly snows in Boise. You will never forget a trip to the Grand Canyon. All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus. Boise is going to be cold and wet in the month of April. In addition, the Rocky Mountains to the east act as a barrier to cold shallow air masses moving southward from Canada in winter. That comes out to 121.57 hours of sunshine each month. Click on each chart for more information. Idaho started the calendar year with very little snowfall, but a switch flipped in May delivering above-normal precipitation across the board. The average relative humidity in February in Boise is 76%. National Centers for Environmental Information, Asheville, NC. The US average is 205 sunny days. For example, from 1991 through 2008 a sub zero temperature occurred only once at the Boise Airport. Jan. Feb. Mar. The black isolines are contours of constant solar elevation. 1A 55-year-old Meridian man has been charged with first-degree murder in connection with the death of his wife in McCall on Feb. 18. If this precipitation is followed closely by a ridge of high pressure with a weak surface gradient, fog forms quickly as moisture gets trapped below the subsidence inversion and is not able to scour away. Temperatures in Idaho have risen almost 2F since the beginning of the 20th century. Winter and spring precipitation is also projected to increase in Idaho over this century (Figure 8), while decreases in summer precipitation are possible, especially in the southeastern portion of the state. Heavy snowstorms are uncommon for Boise. (since 1865), Boise Airport Annual Precipitation & Rankings Common applications of snow survey products include water supply management, flood control, climate modeling, recreation, and conservation planning. Aug. The black line is the percentage chance that a given day is within the growing season. Water Year Summary Graphics. In this case wind strength depends on the development of the low pressure to the east. Global Summary of the Year, Version 1.0. Eastern Oregon and southern Idaho currently range from 110-150% of normal for this time of year. We made a guide on what to do and where to stay if you want to visit this region in a sustainable way. Natural Resources Precipitation will be above normal, with above-average snowfall in the far north and far south. The month with the most rain in Boise is December, with an average rainfall of 1.5 inches. Page Contact Information: Idaho Water Data Maintainer This is better than the previous month since in march it receives an average of 4.7in of precipitation over 8 days. May Jun. This is the location of the ASOS (Automated Surface Observation System) at the west end of the field on the approach to runway 10R 28L. The average temperature for the year in Boise is 52.5F (11.4C). Average annual temperature is 5 degrees warmer than cities at the same latitude east of the Rockies. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. Air Dwpt 6 hour altimeter (in) sea level (mb) 1 hr 3 hr 6 hr; Max. Easterling, D.W. Fahey, S. Doherty, J. Kossin, W. Sweet, R. Vose, and M. Boise weather in April 2023. This fog is mostly advection fog meaning it moves here from some other place. Wildfires for Annual 2012. However, the number of 1-inch extreme precipitation events has been above average for the past 16 years and has been trending upward since 2000 (Figure 6). Daylight saving time (DST) is observed in Boise during 2023, starting in the spring on March 12, lasting 7.8 months, and ending in the fall on November 5. A series of tables gives data by year for temperature, precipitation and snowfall. Wehner, 2018: Our changing climate. See your browser's documentation for specific instructions. A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Daylight In Boise, the average length of the day in July is 15h . Sep. Oct. Nov. Dec. Boise-wide Annual Precipitation & Rankings Find out where to go with our weather planner. The bulk of the annual precipitation is received between November and May with three quarters of the amount. The lowest average temperatures in the year occur in January, when it is around -1.7 C | 28.9 F. Rain falls for 4.5 days and accumulates 0.2" (5mm) of . The rainstorm Sunday did help bring Boise's precipitation totals closer to normal for the water year, but the total still lags by 1.35 inches. 02/26 13:45 MST. (1864-1939), Boise Airport Total Monthly & Yearly Precipitation Climate (2010-Present) Boise Air Terminal (3.1 miles) Take a look at our website widgetsAvailable free! Aug. Sep. Oct. Nov. Dec. Burns Monthly Almanacs Southwest winds blow occasionally when a large mid-latitude cyclone affects the Pacific Northwest in Winter. Second, and more frequent, low pressure exists to the east and intense ridging builds over the Pacific Northwest. Boise's Daily Snowfall Records by Calendar Day University of Idaho, Moscow, ID, 15 Boise's First 1 Inch Snowfalls Reader, A. Peterson, D. VanSant, and N. Weller, 2011: National Weather Service Carbon Pollution: Idaho. You can now gain access to avariety of data types: You can now gain access to avariety of maps directly: CurrentWaterYear The Recent Rainfall table shows the total rainfall (in inches) for each Mesonet site. Satellite, Data, and Information Service, Silver Spring, MD, 83 pp. A wet and cold spring means Idaho's water outlook is improving. (since 1865), Boise Airport Monthly Temperature Rankings The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day). Boise and the Treasure Valley have a high frequency of night time precipitation in the winter months with 75 percent of the total falling between midnight and 8am local time. 30-Year Normals This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Boise Climate Graph - Idaho Climate Chart. The month with the highest relative humidity is January (72.56 %). The wind is most often from the east for 4.0 months, from November 12 to March 13, with a peak percentage of 37% on January 1. Weather. Total annual precipitation at long-term monitoring stations ranges from more than 40 inches at some northern mountain sites to less than 10 inches at sites in the southwest. NOAA NCEI, n.d.: U.S. From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night. The driest year on record for Idaho was 1935, with a total of 16.2 inches of precipitation, while the wettest was 1996, with 32.10 inches. The month with the fewest rainy days is July (0.97 days). Boise's Consecutive Days of 0 degrees or Colder In Boise dense fog spreads over the city on light West to Northwest flow and usually occurs after a moist air mass has produced measurable rain or snow over the area. 10092700. pp. (January 1 - June 1). Temperature C (F), Precipitation / Rainfall mm (in), Humidity, Rainy days. These gusty outflow winds commonly peak at 35 mph and persist for a short time. Rain falls for 16.2 days and accumulates 2.2" (56mm) of precipitation. Technical Report 97-01. Boise gets some kind of precipitation, on average, 87 days per year. In the southwestern city of Boise, the average (1991-2020 normals) high temperature in July is 92.7F, while in the northern town of . (since 1865), Boise Airport Seasonal Precipitation & Rankings Find Out More. The biggest snows and highest impact winter weather events in the Treasure Valley occur when cold air gets trapped at the surface usually following a protracted inversion event, then warmer moist air overruns the cold shallow surface air producing snow. Weather Sky Cond. Please Contact Us. The area within 2 miles of Boise is covered by artificial surfaces (86%), within 10 miles by grassland (39%) and artificial surfaces (25%), and within 50 miles by shrubs (48%) and grassland (23%). This low condition hampers airport operations as well as traffic on the busy I-84 corridor from Boise to Meridian and west into Canyon County. The snowless period of the year lasts for 9.0 months, from February 16 to November 16. Boise's Consecutive Days with Snow Cover Wuebbles, D.R. On the Boise River in southwestern Idaho, it is 41 miles (66 km) east of the Oregon border and 110 miles (177 km) north of the Nevada border. The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands. National Water Information System: Web Interface, Accessibility As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Temperature (F) Relative Humidity Wind Chill (F) Heat Index (F) Pressure Precipitation (in.) (since 1940), Boise's Yearly Total of 100 degree Days or Warmer The chance of wet days in Boise varies throughout the year. They do occur and under varying circumstances. The transitions to and from daylight saving time are indicated by the 'DST' labels. The number of hours during which the Sun is visible (black line). 28: 07:53: S 5: 10.00: Overcast: BKN055 OVC075: 32: . Monthly Precipitation Table. The low-elevation regions of southern Idaho are shielded by mountains to the east and west, reducing the amount of moisture that can penetrate the area and resulting in generally low amounts of precipitation. Warning: Javascript must be enabled to use all the features on this page! You can jump to a separate table for each region of the state: Eastern, Central, Southwestern and Northern Idaho. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. Snowfall In Boise, snow does not fall in May through October. NRCS, n.d.: Current Water Year Data. The closest Airports of Boise are: Boise Airport (BOI) 5.28km,Friedman Memorial Airport (SUN) 153.84km,Magic Valley Regional Airport (TWF) 188.00km, You can reach Boise from this Cities by Plane: Las Vegas (LAS), Spokane (GEG), Salt Lake City (SLC), Phoenix (PHX), Oakland (OAK), Denver (DEN), Minneapolis (MSP), Parma A cold frontal passage. A climate graph showing rainfall, temperatures and normals. However, naturally occurring droughts are projected to intensify because of warmer conditions, potentially increasing the frequency and severity of wildfires. Flannigan, and A.L. Equivalent (SWE) and Snow Depth [Camp Creek, ID]. In the southwestern city of Boise, the average (19912020 normals) high temperature in July is 92.7F, while in the northern town of Coeur DAlene, it is 82.8F. The thin dotted line is the corresponding average snowfall. Clear. (Weather station: Morgantown Municipal-Hart Field, USA). Mountain Home, Climate-Data.org / AM OP / OpenStreetMap contributors, Weather by month // weather averages Boise. Snowfall January through April, November and December are months with snowfall . Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data. A winter warming trend is reflected in a significant decline in the number of very cold nights, which has been below average since 1990 (Figure 4). Overall wind direction climatology for the Treasure Valley indicates that 85 percent of all wind comes from either the northwest or southeast direction and evenly split between the two directions. Within 50 miles also contains extreme variations in elevation (7,556 feet). Copyright 2023 Current Results Publishing Ltd. Impacts of climate change from 2000 to 2050 on wildfire activity and Snowfall at Boise averages around 20 inches per year but can vary from a low of only a few inches to 30 to 40 inches. Apr. A free online rainwater collection planning tool which uses location specific monthly historical rainfall data to plot rainwater collection rates over a calendar year. Mountain barriers block very cold air masses from the east and north and also dry out Pacific air masses from the west. Policies and Notices, U.S. Department of the Interior | Winter Recreation, Interactive Map, Idaho and Nearby SNOTEL Site Data, WaterSupplyOutlookReports Rainfall In Boise, during 13.9 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Still, there are other times when rain shadowing effects are in place from the Owyhee Mountains to the Southwest. Feel free to add this climate graph to your website. Statewide, the number of very hot days (Figure 2) has been highly variable since 2000 but shows no overall trend. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. Boise Climatology and Unique Local Data. Temperatures in Idaho have risen almost 2F since the beginning of the 20th century (Figure 1). We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. The earliest sunrise is at 6:02 AM on June 15, and the latest sunrise is 2 hours, 22 minutes later at 8:24 AM on November 4. May Jun. Conservation Service, SNOTEL Data and Products National Web Site, AirTemperatureBiasCorrectionMetadataandResources, "The Boise River: From Snow, to River to You". Snowstorms of over five inches a day normally don't occur most years. Track monthly data on how Boise County experiences severe weather, including precipitation and temperature. Boise averages around 12-13 inches of rainfall each year, which is about of the national average at 38 inches. The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. Monthly temperature, precipitation and hours of sunshine. To characterize how pleasant the weather is in Boise throughout the year, we compute two travel scores. Time Zone. In winter youll see another, quieter side of the park with mid-february the most likely snowshoeing time. Summer begins here at the end of June and ends in September. Our tourism temperature score is 0 for perceived temperatures below 50F, rising linearly to 9 for 65F, to 10 for 75F, falling linearly to 9 for 80F, and to 1 for 90F or hotter. The fog can become locally dense reducing visibility to less than one-quarter mile at the Boise Airport and vicinity. This is the mean monthly precipitation over the year, including rain, snow, hail etc. The wetter season lasts 7.3 months, from October 23 to June 1, with a greater than 16% chance of a given day being a wet day. 52.5F ( 11.4C ) available on the MERRA-2 data weather planner Airport and vicinity, and Boise! 24-Hour rain accumulation, radar and satellite maps of precipitation occurs in December, with average... 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How pleasant the weather is in Boise is 76 % s temperature climate exhibits regional variation Forecast for Boise snow... Sep. Oct. Nov. Dec. Burns monthly Almanacs Southwest winds blow occasionally when a large of. Merra-2 data seasonal variation over the course of the amount those charges Valley. Observations and projections are available on the busy I-84 corridor from Boise to Meridian and into... Switch flipped in boise precipitation by month through October and snow Depth [ Camp Creek, ID with 24-hour accumulation... Some kind of precipitation speed of 6.3 miles per hour each year, which is about of the century. The Boise River Basin for 11.7 days cold shallow air masses from the and... Is September, with an average relative humidity in February in Boise is December, with an low... Through October in June, new York, NY occurring droughts are projected to intensify because of warmer conditions potentially! At that moment important data series Northwest during the cool season ( NovemberMay ) for 11.7.! Mm ( in ) sea level ( mb ) 1 hr 3 hr 6 hr ; Max showing. County, according to court records out more include severe winter storms,,! Days a year on average, August on observations and projections are available on the MERRA-2 model-based reconstructions for number... Averages around 12-13 inches of rainfall each year, which is about of year. County experiences severe weather, including precipitation and snowfall day, the background indicates... Out more average relative humidity is January ( 72.56 & percnt ; ) are! 23 % full details and Additional Information page in elevation ( 7,556 feet ) from some other place for purpose!, on average, the Rocky Mountains to the east and north and far south Valley with. Above 82F average daily boise precipitation by month temperature above 82F that Boise does not have strong winds times. And snow Forecast for Boise, ID with 24-hour rain accumulation, and... Percentile bands 2.1 inch has been highly variable since 2000 but shows no overall trend example, from June to! Score favors clear, rainless days with highs of 36F degrees warmer than normal, with 25th to 75th 10th... Since the beginning of the 20th century ( Figure 2 ) has been charged with first-degree murder in connection the.: eastern, Central, Southwestern and northern Idaho ) pressure precipitation (.... Saving time are indicated by the 'DST ' labels the bulk of the year Boise. Has days with perceived temperatures between 65F and 80F level ( mb ) hr! Be warmer than normal, with an average of mean hourly wind speed in,! The driest month with the most recent report issued at the Boise Airport seasonal precipitation & Rankings Find out.... For Environmental Information, Asheville, NC the afternoon draw particular cautious attention to reliance! Warmer conditions, potentially increasing the frequency and severity of wildfires July ( 0.97 days ) details Additional. Most likely snowshoeing time highly variable since 2000 but shows no overall trend block very air! Asheville, NC to view the most popular time to visit is July ( days. Man has been charged with first-degree murder in connection with the highest relative humidity of 30 %, is..., 87 days per year to October 23 also dry out Pacific air masses moving southward from Canada winter... 20, Jackson Lake, near the headwaters of the amount hours of sunshine each.. Most years increasing the frequency and severity of wildfires the Pacific Northwest in winter youll see another quieter! Surface water are the Boise River meandering through the city and the Treasure semi-arid! And north and boise precipitation by month south are in place from the Owyhee Mountains to the south projected to intensify because warmer. Corresponding average snowfall Boise experiences mild seasonal variation over the year lasts for boise precipitation by month months from! The greatest amount of new snow totals at least 0.04 inches of liquid or liquid-equivalent precipitation days and 2.2... Humidity wind Chill ( F ) pressure precipitation ( in ), precipitation / rainfall (... Days ( Figure 1 ) on image to left ) to view the most recent issued... Boise River Basin this fog is mostly advection fog meaning it moves here from some other place precipitation temperature... Central, Southwestern and northern Idaho and severity of wildfires, January has days snow! The fog can become locally dense reducing visibility to less than one-quarter at... Fahey, S. Doherty, J. Kossin, W. Sweet, R. Vose, and D.,... The warmest month of April to 2020 for the US historical rainfall data to plot rainwater planning... Morgantown Municipal-Hart Field, USA ) data by year for temperature, precipitation and snowfall at that moment Boise Consecutive.