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Weather & Climate
Ada County, Idaho, United States
Overview
Climate data and monthly weather averages for Ada County.
Key Metrics
Annual Avg
10.6°C
Summer Avg
23.2°C
Winter Avg
-0.9°C
Record High
43.4°C
Record Low
-22.7°C
Annual Precipitation
388.9 mm
Avg Humidity
55%
Summer Humidity
35%
Winter Humidity
77%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 13.9° | -1.7° | -22.7° | 51.1 | 81% | 52 | 47.4 |
| Feb | 15.7° | 0.7° | -13.1° | 35.3 | 73% | 75 | 41.8 |
| Mar | 23.4° | 5° | -9° | 47.1 | 65% | 123 | 48.2 |
| Apr | 30.3° | 8.7° | -4.9° | 35.1 | 58% | 166 | 42.8 |
| May | 37.7° | 14.3° | -3° | 37.5 | 52% | 208 | 48.2 |
| Jun | 42.2° | 19.4° | 2° | 22.8 | 44% | 226 | 55.2 |
| Jul | 43.4° | 25.7° | 8° | 6.5 | 32% | 240 | 43.1 |
| Aug | 42° | 24.5° | 7° | 7.1 | 29% | 207 | 49.6 |
| Sep | 38.5° | 18.8° | 0.9° | 13.8 | 34% | 156 | 53.4 |
| Oct | 33.5° | 10.6° | -7.8° | 27 | 49% | 107 | 43.4 |
| Nov | 22.9° | 3.4° | -14.6° | 40.2 | 64% | 62 | 62.9 |
| Dec | 14.6° | -1.6° | -20.8° | 65.4 | 78% | 43 | 47.3 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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