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Weather & Climate
Willamina, Oregon, United States
Overview
Climate data and monthly weather averages for Willamina.
Key Metrics
Annual Avg
9.8°C
Summer Avg
14.7°C
Winter Avg
5.2°C
Record High
34.5°C
Record Low
-10.3°C
Annual Precipitation
1572 mm
Avg Humidity
88%
Summer Humidity
85%
Winter Humidity
92%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 14.9° | 5.3° | -7.4° | 244.9 | 93% | 37 | 33.6 |
| Feb | 16.9° | 5.3° | -7.3° | 156.5 | 90% | 58 | 34.7 |
| Mar | 20.3° | 6.7° | -3.7° | 189.1 | 89% | 93 | 32.8 |
| Apr | 28.1° | 8.2° | -1.6° | 120.3 | 86% | 129 | 33 |
| May | 30.1° | 11° | 0.9° | 70.7 | 85% | 169 | 34.2 |
| Jun | 31° | 13.3° | 5.5° | 45.3 | 84% | 180 | 20.4 |
| Jul | 33.5° | 15.3° | 7.2° | 13.3 | 84% | 212 | 18.1 |
| Aug | 32.9° | 15.4° | 8.1° | 18 | 86% | 180 | 26.2 |
| Sep | 34.5° | 13.9° | 2.8° | 58.8 | 86% | 129 | 28.7 |
| Oct | 27.7° | 10.7° | -2° | 137.3 | 88% | 80 | 31.8 |
| Nov | 18.4° | 7.3° | -4.8° | 238.8 | 91% | 42 | 35.4 |
| Dec | 16.5° | 5° | -10.3° | 279 | 93% | 31 | 43.3 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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