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Weather & Climate
Union, Oregon, United States
Overview
Available climate summaries for Union. Origins and reference periods are unverified; stored values may include AI estimates. Treat these as estimates until independently verified.
Key Metrics
Annual Avg
5.9°C
Summer Avg
16.9°C
Winter Avg
-4.3°C
Record High
40°C
Record Low
-26.5°C
Annual Precipitation
538.1 mm
Avg Humidity
71%
Summer Humidity
53%
Winter Humidity
92%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 7.7° | -4.9° | -26.5° | 62.6 | 95% | 46 | 29.3 |
| Feb | 11.5° | -3.3° | -21.7° | 49.6 | 89% | 66 | 31.4 |
| Mar | 19.8° | 0.6° | -17.4° | 60.4 | 80% | 105 | 29.9 |
| Apr | 25.6° | 3.7° | -9.7° | 50.7 | 73% | 142 | 26 |
| May | 31.7° | 8.9° | -5.9° | 60.1 | 69% | 182 | 26.4 |
| Jun | 36.8° | 13.1° | -2.4° | 43.5 | 63% | 204 | 23.1 |
| Jul | 40° | 19.1° | 2° | 11.5 | 49% | 236 | 19.7 |
| Aug | 37.8° | 18.4° | 1.8° | 14.3 | 47% | 198 | 20.7 |
| Sep | 36.8° | 13.5° | -3.8° | 19.2 | 52% | 142 | 25 |
| Oct | 30.8° | 6.4° | -12.3° | 38.4 | 65% | 91 | 25.7 |
| Nov | 18.1° | -0.1° | -17.5° | 52.5 | 79% | 49 | 28.3 |
| Dec | 12° | -4.7° | -24.7° | 75.3 | 91% | 35 | 33.3 |
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 2026-03-23.
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