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Weather & Climate
West Valley, Washington, United States
Overview
Climate data and monthly weather averages for West Valley.
Key Metrics
Annual Avg
8.6°C
Summer Avg
19.1°C
Winter Avg
-1.3°C
Record High
39.1°C
Record Low
-22.2°C
Annual Precipitation
511.9 mm
Avg Humidity
68%
Summer Humidity
52%
Winter Humidity
87%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 11.5° | -1.8° | -22.2° | 77.5 | 90% | 40 | 39.9 |
| Feb | 15° | 0° | -16.9° | 50.7 | 81% | 64 | 43.1 |
| Mar | 21.3° | 3.5° | -14.4° | 54.3 | 74% | 106 | 40.7 |
| Apr | 26.8° | 7.3° | -5.5° | 35.7 | 66% | 150 | 41.2 |
| May | 32.7° | 12.7° | -2.3° | 35 | 60% | 188 | 38.1 |
| Jun | 38.2° | 16.2° | 2.2° | 21.6 | 57% | 205 | 34.8 |
| Jul | 39.1° | 20.8° | 4.7° | 6.2 | 50% | 232 | 30.2 |
| Aug | 37.9° | 20.4° | 6.3° | 9.3 | 49% | 195 | 36.5 |
| Sep | 35.4° | 15.6° | -0.9° | 16.8 | 55% | 138 | 36.7 |
| Oct | 29.6° | 8.6° | -8.6° | 46.5 | 68% | 88 | 41.2 |
| Nov | 17.6° | 2.1° | -18.5° | 68.7 | 82% | 46 | 52.2 |
| Dec | 10.7° | -2° | -17.9° | 89.6 | 89% | 32 | 49.7 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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