Annual Weather Averages Near Boise
Averages are for Boise Air Terminal, which is 6 kilometers from Boise.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Boise
High Temp: 34 °C
Low Temp: -4 °C
Mean Temp: 12 °C
Precipitation: 25.1 mm
Humidity: 52%
Dew Point: 1 °C
Wind: 16 km/h
Pressure: 101.66 kPa
Visibility: 16 km
January Climate & Weather Averages in Boise
High Temp: 4 °C
Low Temp: -3 °C
Mean Temp: 0 °C
Precipitation: 36.6 mm
Humidity: 76%
Dew Point: -4 °C
Wind: 15 km/h
Pressure: 102.32 kPa
Visibility: 13 km
February Climate & Weather Averages in Boise
High Temp: 8 °C
Low Temp: -2 °C
Mean Temp: 3 °C
Precipitation: 27.2 mm
Humidity: 66%
Dew Point: -3 °C
Wind: 18 km/h
Pressure: 101.98 kPa
Visibility: 15 km
March Climate & Weather Averages in Boise
High Temp: 13 °C
Low Temp: 1 °C
Mean Temp: 7 °C
Precipitation: 34.8 mm
Humidity: 55%
Dew Point: -2 °C
Wind: 20 km/h
Pressure: 101.72 kPa
Visibility: 17 km
April Climate & Weather Averages in Boise
High Temp: 17 °C
Low Temp: 4 °C
Mean Temp: 10 °C
Precipitation: 30.9 mm
Humidity: 50%
Dew Point: 0 °C
Wind: 20 km/h
Pressure: 101.50 kPa
Visibility: 17 km
May Climate & Weather Averages in Boise
High Temp: 22 °C
Low Temp: 8 °C
Mean Temp: 15 °C
Precipitation: 36.3 mm
Humidity: 46%
Dew Point: 3 °C
Wind: 18 km/h
Pressure: 101.29 kPa
Visibility: 17 km
June Climate & Weather Averages in Boise
High Temp: 28 °C
Low Temp: 12 °C
Mean Temp: 20 °C
Precipitation: 20.7 mm
Humidity: 39%
Dew Point: 5 °C
Wind: 17 km/h
Pressure: 101.20 kPa
Visibility: 18 km
July Climate & Weather Averages in Boise
High Temp: 34 °C
Low Temp: 17 °C
Mean Temp: 25 °C
Precipitation: 6.2 mm
Humidity: 30%
Dew Point: 6 °C
Wind: 14 km/h
Pressure: 101.17 kPa
Visibility: 18 km
August Climate & Weather Averages in Boise
High Temp: 33 °C
Low Temp: 16 °C
Mean Temp: 24 °C
Precipitation: 5.3 mm
Humidity: 30%
Dew Point: 5 °C
Wind: 13 km/h
Pressure: 101.19 kPa
Visibility: 17 km
September Climate & Weather Averages in Boise
High Temp: 27 °C
Low Temp: 11 °C
Mean Temp: 19 °C
Precipitation: 11.1 mm
Humidity: 36%
Dew Point: 3 °C
Wind: 14 km/h
Pressure: 101.41 kPa
Visibility: 17 km
October Climate & Weather Averages in Boise
High Temp: 18 °C
Low Temp: 5 °C
Mean Temp: 12 °C
Precipitation: 21.9 mm
Humidity: 49%
Dew Point: 1 °C
Wind: 15 km/h
Pressure: 101.76 kPa
Visibility: 17 km
November Climate & Weather Averages in Boise
High Temp: 10 °C
Low Temp: 0 °C
Mean Temp: 5 °C
Precipitation: 29.9 mm
Humidity: 66%
Dew Point: -2 °C
Wind: 15 km/h
Pressure: 102.12 kPa
Visibility: 15 km
December Climate & Weather Averages in Boise
High Temp: 4 °C
Low Temp: -4 °C
Mean Temp: 0 °C
Precipitation: 40.4 mm
Humidity: 76%
Dew Point: -4 °C
Wind: 16 km/h
Pressure: 102.28 kPa
Visibility: 13 km