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Weather & Climate
Franklin County, Washington, United States
Overview
Climate data and monthly weather averages for Franklin County.
Key Metrics
Annual Avg
12.1°C
Summer Avg
23.3°C
Winter Avg
1.7°C
Record High
42.3°C
Record Low
-19.4°C
Annual Precipitation
336.2 mm
Avg Humidity
60%
Summer Humidity
42%
Winter Humidity
78%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 17.4° | 1.1° | -19.4° | 44.3 | 82% | 38 | 54.6 |
| Feb | 17.8° | 3° | -14.1° | 29.7 | 73% | 65 | 54.3 |
| Mar | 24.3° | 7.2° | -10° | 37.8 | 66% | 113 | 52.4 |
| Apr | 30.9° | 10.8° | -2.8° | 28.8 | 59% | 161 | 50.8 |
| May | 36.9° | 16.2° | 0.6° | 29.8 | 53% | 201 | 50.8 |
| Jun | 42° | 20.2° | 5.9° | 23.1 | 48% | 216 | 41.7 |
| Jul | 42.3° | 25.3° | 10.1° | 5 | 39% | 238 | 40.6 |
| Aug | 42° | 24.3° | 9° | 7.4 | 40% | 198 | 46.5 |
| Sep | 39.2° | 18.9° | 1.4° | 12.6 | 46% | 142 | 47.8 |
| Oct | 29.2° | 11.6° | -6.8° | 28.8 | 59% | 92 | 50.6 |
| Nov | 21.2° | 5.1° | -10° | 39 | 72% | 47 | 67.9 |
| Dec | 17.4° | 0.9° | -15.3° | 49.9 | 80% | 31 | 65.1 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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