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Weather & Climate
Jefferson, Ohio, United States
Overview
Climate data and monthly weather averages for Jefferson.
Key Metrics
Annual Avg
9.7°C
Summer Avg
21.5°C
Winter Avg
-2.5°C
Record High
37.8°C
Record Low
-24.7°C
Annual Precipitation
998.8 mm
Avg Humidity
79%
Summer Humidity
72%
Winter Humidity
88%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 17.5° | -3.7° | -24.1° | 64.5 | 89% | 44 | 35.4 |
| Feb | 19.9° | -3.1° | -24.7° | 60.8 | 88% | 64 | 42.6 |
| Mar | 26.3° | 1.7° | -17.8° | 77.2 | 83% | 101 | 34.7 |
| Apr | 27.5° | 8.3° | -8.6° | 82.8 | 78% | 135 | 29 |
| May | 35.3° | 14.8° | -4° | 98.6 | 77% | 165 | 26.8 |
| Jun | 36.5° | 19.9° | 3.6° | 98.1 | 75% | 177 | 21.3 |
| Jul | 37.8° | 22.7° | 7.9° | 98 | 71% | 183 | 20.5 |
| Aug | 37° | 22° | 7.5° | 84.3 | 70% | 162 | 18 |
| Sep | 35.6° | 18.2° | 3.2° | 95.7 | 73% | 126 | 23 |
| Oct | 31.4° | 11.1° | -2.7° | 93.6 | 78% | 83 | 25.6 |
| Nov | 24.7° | 4.6° | -13.9° | 72.3 | 83% | 54 | 29 |
| Dec | 19.3° | -0.7° | -18.3° | 72.9 | 88% | 35 | 31.3 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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