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Weather & Climate
Chelan, Washington, United States
Overview
Climate data and monthly weather averages for Chelan.
Key Metrics
Annual Avg
6.3°C
Summer Avg
17.7°C
Winter Avg
-4.8°C
Record High
36.5°C
Record Low
-29.9°C
Annual Precipitation
480 mm
Avg Humidity
73%
Summer Humidity
56%
Winter Humidity
92%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 6.3° | -5.3° | -29.9° | 67 | 95% | 36 | 24.4 |
| Feb | 11° | -3.6° | -25° | 42 | 89% | 59 | 28.7 |
| Mar | 18.5° | 0.5° | -20.3° | 50.8 | 81% | 97 | 29.7 |
| Apr | 24.8° | 5.2° | -9.2° | 30.9 | 69% | 137 | 32.1 |
| May | 30.8° | 11° | -4.6° | 37.8 | 63% | 175 | 32.7 |
| Jun | 36.3° | 14.8° | -0.3° | 24.9 | 60% | 190 | 28.1 |
| Jul | 36.5° | 19.3° | 2.6° | 10.2 | 54% | 218 | 26.5 |
| Aug | 35.6° | 18.9° | 3.6° | 10.5 | 53% | 184 | 26.8 |
| Sep | 32.3° | 13.8° | -2° | 18.6 | 59% | 128 | 27.6 |
| Oct | 27° | 6.4° | -9.2° | 45.6 | 71% | 79 | 29.7 |
| Nov | 15.5° | -0.4° | -24° | 64.8 | 85% | 40 | 27.8 |
| Dec | 4.6° | -5.4° | -23° | 76.9 | 93% | 28 | 33.9 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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