Climate for Boise, Idaho
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Average Temperatures for Boise
| Month | Low | High |
|---|---|---|
| Jan | 23.6°F | 36.7°F |
| Feb | 28.8°F | 44.5°F |
| Mar | 34.0°F | 53.6°F |
| Apr | 39.4°F | 61.7°F |
| May | 46.6°F | 70.7°F |
| Jun | 54.2°F | 80.3°F |
| Jul | 60.3°F | 89.2°F |
| Aug | 59.8°F | 88.0°F |
| Sept | 51.2°F | 77.2°F |
| Oct | 41.3°F | 64.3°F |
| Nov | 32.4°F | 47.5°F |
| Dec | 24.1°F | 37.2°F |
Boise's coldest month is January when the average temperature overnight is 23.6°F. In July, the warmest month, the average day time temperature rises to 89.2°F.
Average Rainfall for Boise
| Month | Precipitation |
|---|---|
| Jan | 1.39in. |
| Feb | 1.14in. |
| Mar | 1.41in. |
| Apr | 1.27in. |
| May | 1.27in. |
| Jun | 0.74in. |
| Jul | 0.39in. |
| Aug | 0.30in. |
| Sept | 0.76in. |
| Oct | 0.76in. |
| Nov | 1.38in. |
| Dec | 1.38in. |
The driest month in Boise is August with 0.30 inches of precipitation, and with 1.41 inches March is the wettest month.
Monthly Sunshine Hours
| Month | Sunshine Hours |
|---|---|
| Jan | 40% |
| Feb | 50% |
| Mar | 62% |
| Apr | 68% |
| May | 70% |
| Jun | 75% |
| Jul | 87% |
| Aug | 85% |
| Sept | 82% |
| Oct | 69% |
| Nov | 43% |
| Dec | 38% |
Sunshine hours refers to the amount sunshine there is during the hours of daylight. A higher percentage means there is more sunshine through the day and a lower percentage will indicate that it is probably cloudier. Sunshine hours are important when you are planning your vacation.
Climate Graphs
Boise, Idaho has the following climate graphs available:
