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Weather & Climate
Waterville, Washington, United States
Overview
Climate data and monthly weather averages for Waterville.
Key Metrics
Annual Avg
8.1°C
Summer Avg
19.5°C
Winter Avg
-2.8°C
Record High
38.8°C
Record Low
-25.4°C
Annual Precipitation
391.5 mm
Avg Humidity
68%
Summer Humidity
51%
Winter Humidity
88%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 8.8° | -3.6° | -25.4° | 56.1 | 92% | 36 | 29.9 |
| Feb | 12.9° | -1.3° | -18.9° | 34.7 | 82% | 59 | 42 |
| Mar | 20.3° | 3° | -16.5° | 41.2 | 74% | 97 | 39.9 |
| Apr | 26.8° | 7.1° | -5.7° | 26.4 | 64% | 137 | 39 |
| May | 33° | 12.9° | -3.3° | 30.4 | 58% | 175 | 40.2 |
| Jun | 38.3° | 16.6° | 2° | 19.8 | 55% | 190 | 36.6 |
| Jul | 38.8° | 21.2° | 5° | 7.1 | 49% | 218 | 34.9 |
| Aug | 37.2° | 20.6° | 5.3° | 8.4 | 49% | 184 | 35 |
| Sep | 34.2° | 15.4° | -0.3° | 14.4 | 55% | 128 | 37.8 |
| Oct | 28.9° | 8° | -8.6° | 36.6 | 68% | 79 | 38.8 |
| Nov | 18.7° | 1.2° | -18.4° | 51.6 | 82% | 40 | 42.3 |
| Dec | 7.2° | -3.5° | -19.3° | 64.8 | 90% | 28 | 43.5 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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