Boise

The tables below display average monthly climate and weather indicators in Boise Idaho. Temperature by: Fahrenheit / Centigrade Boise Temperature Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Avg. Temperature 29.0 35.9 42.4 49.1 57.5 66.5 74.0 72.5 62.6 51.8 39.9 30.1 50.9 Avg. Max Temperature 36.4 44.2 52.9 61.4 71.0 80.9 90.2 88.1 77.0 64.6 48.7 37.7 62.8 Avg. Min Temperature 21.6 27.5 31.9 36.7 43.9 52.1 57.7 56.8 48.2 39.0 31.1 22.5 39.1 Days with Max Temp of 90 F or Higher 0.0 0.0 0.0 < 0.5 1.0 5.0 19.0 16.0 3.0 < 0.5 0.0 0.0 44.0 Days with Min Temp Below Freezing 26.0 21.0 17.0 8.0 2.0 < 0.5 0.0 0.0 0.0 6.0 18.0 25.0 123     Boise Heating and Cooling Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Heating Degree Days 1116 815 701 477 242 75.0 6.0 20.0 160 414 753 1082 5861 Cooling Degree Days 0.0 0.0 0.0 0.0 9.0 120 285 252 88.0 0.0 0.0 0.0 754     Boise Precipitation Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precipitation (inches) 1.4 1.1 1.3 1.2 1.1 0.8 0.3 0.4 0.8 0.8 1.5 1.4 12.1 Days with Precipitation 0.01 inch or More 12.0 10.0 10.0 8.0 8.0 6.0 3.0 2.0 4.0 6.0 10.0 11.0 90.0 Monthly Snowfall (inches) 6.5 3.7 1.6 0.6 0.1 < 0.05 < 0.05 < 0.05 < 0.05 0.1 2.3 5.9 20.8     Other Boise Weather Indicators Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Average Wind Speed 8.0 8.9 9.9 9.9 9.4 9.0 8.4 8.2 8.2 8.3 8.4 8.1 8.7 Clear Days 4.0 5.0 6.0 6.0 8.0 12.0 20.0 19.0 17.0 12.0 6.0 5.0 120 Partly Cloudy Days 5.0 6.0 7.0 9.0 10.0 10.0 7.0 8.0 7.0 8.0 6.0 6.0 90.0 Cloudy Days 22.0 17.0 18.0 15.0 13.0 8.0 3.0 4.0 6.0 11.0 18.0 20.0 155 Percent of Possible Sunshine 40.0 51.0 62.0 68.0 70.0 75.0 87.0 85.0 82.0 69.0 43.0 38.0 64.0 Avg. Relative Humidity 69.5 74.5 66.5 57.0 52.5 50.0 42.0 37.0 40.5 47.5 58.0 70.5 70.0

Weather information for other cities in Idaho • Lewiston Weather • Pocatello Weather