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Weather & Climate
Ritzville, Washington, United States
Overview
Climate data and monthly weather averages for Ritzville.
Key Metrics
Annual Avg
10.5°C
Summer Avg
21.7°C
Winter Avg
0.1°C
Record High
41°C
Record Low
-22.8°C
Annual Precipitation
406.9 mm
Avg Humidity
64%
Summer Humidity
45%
Winter Humidity
84%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 15.3° | -0.4° | -22.8° | 52.7 | 87% | 35 | 55.7 |
| Feb | 16.5° | 1.3° | -19.1° | 34.7 | 79% | 63 | 57 |
| Mar | 22.1° | 5.4° | -14.4° | 48.7 | 71% | 110 | 53.1 |
| Apr | 28.8° | 9.2° | -3.8° | 33.3 | 63% | 157 | 52.6 |
| May | 34.7° | 14.6° | -1.9° | 36.6 | 57% | 198 | 53.4 |
| Jun | 40.2° | 18.6° | 2.9° | 27.3 | 52% | 209 | 46.6 |
| Jul | 40.4° | 23.8° | 8° | 7.1 | 42% | 234 | 46 |
| Aug | 41° | 22.8° | 7.6° | 9.6 | 42% | 195 | 45.3 |
| Sep | 37.3° | 17.5° | 0.4° | 14.4 | 48% | 138 | 51.1 |
| Oct | 30.2° | 10.1° | -7.3° | 33.5 | 62% | 89 | 54 |
| Nov | 19.7° | 3.6° | -14.5° | 49.5 | 76% | 44 | 72.5 |
| Dec | 15.2° | -0.7° | -20.5° | 59.5 | 85% | 28 | 63.5 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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