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Boise weather by month
Check out Boise weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Boise (°C)
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Max temperature (daytime) | 2 |
7 |
12 |
16 |
22 |
27 |
32 |
31 |
25 |
18 |
9 |
3 |
Min temperature (night-time) | -6 |
-3 |
-1 |
2 |
6 |
11 |
14 |
13 |
8 |
3 |
-1 |
-6 |
Heat & Humidity | 0 |
0 |
0 |
0 |
0 |
L |
M |
M |
0 |
0 |
0 |
0 |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & Daylight in Boise
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Daily hours of sunshine | ||||||||||||
Daily hours of daylight | 9 |
11 |
12 |
13 |
15 |
15 |
15 |
14 |
12 |
11 |
10 |
9 |
UV Index (Maximum) | 1 |
2 |
4 |
6 |
7 |
9 |
9 |
8 |
6 |
4 |
2 |
1 |
Rainfall in Boise
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Number of days with some rain | 12 |
10 |
10 |
8 |
7 |
6 |
3 |
3 |
4 |
6 |
10 |
11 |
Average monthly rainfall (mm) | 38 |
28 |
32 |
30 |
27 |
21 |
8 |
10 |
19 |
19 |
38 |
36 |
More about Boise
Boise by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Idaho
The climate guide for Idaho (Boise) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
What's the climate like in Boise?
Boise has a cool semi arid climate with hot summers.
Metric (°C / mm) | Imperial (°F / inches)
More about the USA
Compare Boise with the USA
Below the Boise chart shows average maximum daytime temperature for Boise, Idaho, USA and the USA (Washington).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
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