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Weather & Climate
Blanchester, Ohio, United States
Overview
Climate data and monthly weather averages for Blanchester.
Key Metrics
Annual Avg
11.3°C
Summer Avg
22.7°C
Winter Avg
-0.9°C
Record High
37.6°C
Record Low
-24.2°C
Annual Precipitation
1032.7 mm
Avg Humidity
78%
Summer Humidity
75%
Winter Humidity
85%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 19.7° | -2.1° | -24.2° | 69.1 | 85% | 55 | 58.5 |
| Feb | 22.3° | -0.9° | -22.9° | 68.9 | 84% | 73 | 60.6 |
| Mar | 26.8° | 4.7° | -15.2° | 92.7 | 81% | 112 | 59.6 |
| Apr | 27.8° | 11.3° | -6.4° | 100.5 | 78% | 148 | 59.6 |
| May | 30.5° | 16.9° | -3.5° | 110.4 | 79% | 173 | 45.4 |
| Jun | 35.1° | 21.4° | 4.3° | 104.1 | 78% | 186 | 43.1 |
| Jul | 37.6° | 23.5° | 9.6° | 97.6 | 76% | 187 | 35.3 |
| Aug | 36.7° | 23.2° | 8.9° | 76.3 | 71% | 172 | 36.1 |
| Sep | 35.7° | 19.6° | 2.8° | 75 | 69% | 137 | 60.4 |
| Oct | 33.9° | 12.5° | -3.7° | 82.8 | 73% | 99 | 49.4 |
| Nov | 26.1° | 5.6° | -12.5° | 73.5 | 78% | 67 | 56.9 |
| Dec | 20° | 0.3° | -24.1° | 81.8 | 85% | 47 | 61.7 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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