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Weather & Climate
Asotin County, Washington, United States
Overview
Climate data and monthly weather averages for Asotin County.
Key Metrics
Annual Avg
7.3°C
Summer Avg
17.7°C
Winter Avg
-2.2°C
Record High
39.5°C
Record Low
-27.6°C
Annual Precipitation
640.2 mm
Avg Humidity
71%
Summer Humidity
55%
Winter Humidity
89%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 13.4° | -2.5° | -26.6° | 71.3 | 91% | 40 | 34.5 |
| Feb | 13.6° | -1.3° | -25.1° | 60.8 | 86% | 62 | 38.5 |
| Mar | 20.6° | 1.9° | -15.8° | 79 | 81% | 102 | 29.6 |
| Apr | 25.8° | 5° | -8.9° | 61.5 | 75% | 144 | 29 |
| May | 32.6° | 10° | -4.7° | 62.3 | 72% | 187 | 31.1 |
| Jun | 38.2° | 13.8° | -0.9° | 49.8 | 67% | 203 | 27.1 |
| Jul | 39.5° | 19.9° | 3.5° | 11.5 | 50% | 233 | 23.8 |
| Aug | 39.5° | 19.5° | 3.1° | 16.7 | 47% | 192 | 25.3 |
| Sep | 36.7° | 14.7° | -3.6° | 21.9 | 52% | 136 | 25.7 |
| Oct | 31° | 7.6° | -11.7° | 48.4 | 65% | 87 | 32.5 |
| Nov | 19.8° | 1.4° | -21.3° | 71.1 | 79% | 44 | 35.5 |
| Dec | 11.3° | -2.8° | -27.6° | 85.9 | 89% | 31 | 38.1 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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