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Weather & Climate
Allyn, Washington, United States
Overview
Available climate summaries for Allyn. Origins and reference periods are unverified; stored values may include AI estimates. Treat these as estimates until independently verified.
Key Metrics
Annual Avg
8.2°C
Summer Avg
15.4°C
Winter Avg
1.8°C
Record High
40.1°C
Record Low
-18.9°C
Annual Precipitation
1905.9 mm
Avg Humidity
86%
Summer Humidity
78%
Winter Humidity
93%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 14.6° | 2° | -17.4° | 292.6 | 94% | 32 | 24 |
| Feb | 16.1° | 2.1° | -13.5° | 162.4 | 91% | 54 | 26 |
| Mar | 20.2° | 3.8° | -7.8° | 231 | 90% | 88 | 23.6 |
| Apr | 26.5° | 6.3° | -3.5° | 135.9 | 84% | 125 | 21.9 |
| May | 29.6° | 10.6° | -3.3° | 82.8 | 80% | 163 | 23.5 |
| Jun | 40.1° | 13.2° | 0.9° | 54 | 80% | 172 | 20 |
| Jul | 40° | 16.5° | 4.1° | 22.3 | 77% | 196 | 15.9 |
| Aug | 39.9° | 16.4° | 3.3° | 36.3 | 77% | 168 | 25.1 |
| Sep | 37.5° | 13.2° | -0.2° | 77.4 | 81% | 117 | 22.5 |
| Oct | 29.1° | 8.4° | -4.8° | 198.7 | 87% | 71 | 26.7 |
| Nov | 17.7° | 4.2° | -15.2° | 309 | 92% | 37 | 27.1 |
| Dec | 14° | 1.3° | -18.9° | 303.5 | 94% | 26 | 32.2 |
Data sources
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-03-21.
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