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Weather & Climate
Kelso, Washington, United States
Overview
Available climate summaries for Kelso. Origins and reference periods are unverified; stored values may include AI estimates. Treat these as estimates until independently verified.
Key Metrics
Annual Avg
9.5°C
Summer Avg
15.7°C
Winter Avg
3.5°C
Record High
37.4°C
Record Low
-12.3°C
Annual Precipitation
1602.6 mm
Avg Humidity
87%
Summer Humidity
81%
Winter Humidity
93%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 14.9° | 3.5° | -12.3° | 237.2 | 94% | 34 | 21.9 |
| Feb | 15.1° | 3.9° | -8.9° | 150.4 | 91% | 55 | 24.5 |
| Mar | 20.6° | 5.9° | -4.8° | 191.3 | 90% | 89 | 21 |
| Apr | 29.3° | 8° | -3.6° | 125.4 | 86% | 125 | 24 |
| May | 30.8° | 11.4° | -0.3° | 80 | 84% | 162 | 23.4 |
| Jun | 36.6° | 13.7° | 3.4° | 54.6 | 84% | 172 | 16.6 |
| Jul | 37.4° | 16.6° | 6.6° | 15.2 | 80% | 197 | 13.8 |
| Aug | 36.8° | 16.9° | 6.6° | 25.1 | 78% | 168 | 20.3 |
| Sep | 34.8° | 14.7° | 0.3° | 65.4 | 80% | 121 | 20 |
| Oct | 28° | 10.1° | -5° | 155 | 87% | 75 | 21.8 |
| Nov | 17.4° | 5.9° | -7.8° | 244.5 | 92% | 39 | 26.4 |
| Dec | 14.3° | 3.1° | -11.9° | 258.5 | 94% | 28 | 30.3 |
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 2026-03-22.
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