Boise, Idaho, United States Climate

Weather: 11.99°C/53.58°F, Wind SW at 4.12 km/h, 74% Humidity, 0.31% Chance of rain

United States
(Photo by Bryce Boehler on Unsplash)
Contents

Boise Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Boise has a Mediterranean, warm summer climate (Classification: Csb). The district’s yearly temperature is 11.12ºC (52.02ºF) and it is -1.52% lower than United States’s averages. Boise typically receives about 15.36 millimeters (0.6 inches) of precipitation and has 28.37 rainy days (7.77% of the time) annually.

CountryUnited States
CityIdaho
Longitude-116.2023137
Latitude43.6150186
Attitude/ElevationNonem (0ft)
Local timeFriday 07:18
Annual high temperature14.65ºC (58.37ºF)
Annual low temperature6.1ºC (42.98ºF)
Average annual precip.15.36mm (0.6in)
Warmest monthAugust (30.32ºC / 86.58ºF)
Coldest MonthDecember (-3.51ºC / 25.68ºF)
Wettest MonthJanuary (31.21mm / 1.23in)
Driest MonthAugust (2.58mm / 0.1in)
Number of days with rainfall (≥ 1.0 mm)28.37 days (7.77%)
Days with no rain336.63 days (92.23%)
Humidity52.51%

Climate Boise: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)10.0(50.0)13.0(55.4)17.0(62.6)27.0(80.6)33.0(91.4)30.0(86.0)37.0(98.6)39.0(102.2)35.0(95.0)29.0(84.2)23.0(73.4)9.0(48.2)39.0(102.2)
Average high °C (°F)2.58(36.64)2.62(36.72)8.39(47.1)13.98(57.16)18.95(66.11)22.31(72.16)29.81(85.66)30.32(86.58)24.13(75.43)13.99(57.18)7.28(45.1)1.44(34.59)14.65(58.37)
Daily mean °C (°F)0.53(32.95)0.4(32.72)5.49(41.88)10.59(51.06)15.47(59.85)18.49(65.28)24.88(76.78)25.24(77.43)19.42(66.96)10.03(50.05)3.73(38.71)-0.88(30.42)11.12(52.02)
Average low °C (°F)-2.44(27.61)-3.12(26.38)1.7(35.06)5.64(42.15)9.83(49.69)12.09(53.76)17.24(63.03)17.62(63.72)13.37(56.07)5.27(41.49)-0.49(31.12)-3.51(25.68)6.1(42.98)
Record low °C (°F)-11.0(12.2)-13.0(8.6)-4.0(24.8)-1.0(30.2)-1.0(30.2)3.0(37.4)10.0(50.0)9.0(48.2)2.0(35.6)-9.0(15.8)-8.0(17.6)-12.0(10.4)-13.0(8.6)
Average precipitation mm (inches)31.21(1.23)29.83(1.17)24.24(0.95)17.11(0.67)20.47(0.81)12.88(0.51)2.64(0.1)2.58(0.1)4.81(0.19)6.92(0.27)13.73(0.54)17.85(0.7)15.36(0.6)
Average precipitation days (≥ 1.0 mm)4.03.552.913.093.912.00.640.820.911.271.913.362.36
Average relative humidity (%)75.1268.2161.9955.3353.1646.2930.8227.7233.6844.458.7974.5752.51
Mean monthly sunshine hours6.888.7210.1710.5112.8213.9714.4311.9911.3410.529.127.0810.63

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Boise in recent years.

Boise

Boise Temperature by Month

August
25.24°C | 77.43°F
July
24.88°C | 76.78°F
September
19.42°C | 66.96°F
June
18.49°C | 65.28°F
May
15.47°C | 59.85°F
April
10.59°C | 51.06°F
October
10.03°C | 50.05°F
March
5.49°C | 41.88°F
November
3.73°C | 38.71°F
January
0.53°C | 32.95°F
February
0.4°C | 32.72°F
December
-0.88°C | 30.42°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature8.0°C (46.4°F)1.9°C (35.42°F)-3.0°C (26.6°F)
Avg Temperature5.0°C (41.0°F)-0.23°C (31.59°F)-5.0°C (23.0°F)
Min Temperature3.0°C (37.4°F)-2.55°C (27.41°F)-8.0°C (17.6°F)
Dew PointMaxAverageMin
Dew Point3.0°C (37.4°F)-3.71°C (25.32°F)-12.0°C (10.4°F)
PrecipitationMaxAverageMinSum
Precipitation18.2mm | 0.72in2.2mm | 0.09in0.0mm | 0in68.2mm | 2.69in
Snowdepth6.1mm | 0.24in0.88mm | 0.03in0.0mm | 0in27.199999999999996mm | 1.07in
WindMaxAverageMin
Wind19.0kmh | 11.81mph7.71kmh | 4.79mph2.0kmh | 1.24mph
Gust Wind38.0kmh | 23.61mph13.29kmh | 8.26mph3.0kmh | 1.86mph
Sea Level PressureMaxAverageMin
Sea Level Pressure18.2mb2.2mb0.0mb
Boise

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
December° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2019-12-01-3 | 26.6-7 | 19.48214 | 8.730.24 | 10247.2 | 0.28
2019-12-021 | 33.8-0 | 32.0974 | 2.4930.24 | 10245.4 | 0.21
2019-12-030 | 32.0-1 | 30.2942 | 1.2430.33 | 10270.0 | 0.0
2019-12-043 | 37.4-0 | 32.0866 | 3.7330.12 | 10200.0 | 0.0
2019-12-052 | 35.6-0 | 32.0865 | 3.1130.18 | 10220.0 | 0.0
2019-12-061 | 33.8-2 | 28.4817 | 4.3530.21 | 10230.0 | 0.0
2019-12-073 | 37.4-0 | 32.08213 | 8.0830.03 | 10173.0 | 0.12
2019-12-084 | 39.22 | 35.68712 | 7.4629.94 | 10146.6 | 0.26
2019-12-090 | 32.0-2 | 28.4825 | 3.1130.24 | 10240.0 | 0.0
2019-12-100 | 32.0-5 | 23.0716 | 3.7330.3 | 10260.0 | 0.0
2019-12-112 | 35.6-1 | 30.2814 | 2.4930.18 | 10223.0 | 0.12
2019-12-125 | 41.03 | 37.48710 | 6.2130.06 | 101818.2 | 0.72
2019-12-131 | 33.8-1 | 30.2866 | 3.7330.15 | 10215.0 | 0.2
2019-12-140 | 32.0-2 | 28.4848 | 4.9730.03 | 10173.5 | 0.14
2019-12-15-2 | 28.4-6 | 21.2765 | 3.1130.15 | 10210.1 | 0.0
2019-12-16-4 | 24.8-8 | 17.6765 | 3.1130.53 | 10340.1 | 0.0
2019-12-17-5 | 23.0-12 | 10.45911 | 6.8430.59 | 10360.0 | 0.0
2019-12-18-4 | 24.8-11 | 12.2587 | 4.3530.27 | 10250.0 | 0.0
2019-12-19-0 | 32.0-6 | 21.26914 | 8.730.18 | 10222.9 | 0.11
2019-12-204 | 39.2-1 | 30.27416 | 9.9430.24 | 10240.6 | 0.02
2019-12-214 | 39.2-3 | 26.66419 | 11.8130.09 | 10190.0 | 0.0
2019-12-224 | 39.2-3 | 26.66213 | 8.0829.85 | 10110.0 | 0.0
2019-12-233 | 37.4-3 | 26.6637 | 4.3529.91 | 10130.0 | 0.0
2019-12-24-0 | 32.0-2 | 28.4903 | 1.8629.85 | 10116.9 | 0.27
2019-12-25-3 | 26.6-6 | 21.2803 | 1.8629.97 | 10150.0 | 0.0
2019-12-26-4 | 24.8-6 | 21.2863 | 1.8630.24 | 10240.4 | 0.02
2019-12-27-4 | 24.8-7 | 19.4856 | 3.7330.27 | 10250.0 | 0.0
2019-12-28-5 | 23.0-8 | 17.6794 | 2.4930.33 | 10270.0 | 0.0
2019-12-29-4 | 24.8-6 | 21.2878 | 4.9730.21 | 10231.6 | 0.06
2019-12-30-4 | 24.8-6 | 21.2875 | 3.1130.36 | 10282.0 | 0.08
2019-12-31-2 | 28.4-5 | 23.0848 | 4.9730.33 | 10271.7 | 0.07

Boise 3 Year Historical Weather Data

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