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Weather & Climate
Keizer, Oregon, United States
Overview
Climate data and monthly weather averages for Keizer.
Key Metrics
Annual Avg
10.7°C
Summer Avg
17.2°C
Winter Avg
4.7°C
Record High
38.1°C
Record Low
-12.1°C
Annual Precipitation
1369.3 mm
Avg Humidity
84%
Summer Humidity
76%
Winter Humidity
91%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 17.3° | 4.8° | -9.6° | 199 | 92% | 42 | 33 |
| Feb | 18.2° | 5.1° | -7.1° | 134.1 | 89% | 61 | 35.9 |
| Mar | 22.4° | 7° | -4.2° | 165.8 | 88% | 98 | 32.8 |
| Apr | 28.8° | 8.9° | -2.7° | 112.8 | 85% | 136 | 37.5 |
| May | 34.1° | 12.3° | 0.2° | 71.3 | 83% | 177 | 34.4 |
| Jun | 36.2° | 14.8° | 5° | 47.1 | 81% | 190 | 24.1 |
| Jul | 38.1° | 18.1° | 7° | 9 | 76% | 221 | 19.6 |
| Aug | 37.8° | 18.6° | 7.4° | 14.9 | 72% | 189 | 30.7 |
| Sep | 36.3° | 16.2° | 2.5° | 53.1 | 74% | 136 | 30.4 |
| Oct | 29.6° | 11.4° | -4° | 123.4 | 82% | 86 | 37.4 |
| Nov | 22.2° | 7° | -6° | 200.1 | 90% | 46 | 36.6 |
| Dec | 15.7° | 4.2° | -12.1° | 238.7 | 93% | 34 | 45.3 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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