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Weather & Climate
Effingham, New Hampshire, United States
Overview
Climate data and monthly weather averages for Effingham.
Key Metrics
Annual Avg
5.3°C
Summer Avg
17.7°C
Winter Avg
-7.7°C
Record High
43.5°C
Record Low
-33.9°C
Annual Precipitation
1273.3 mm
Avg Humidity
86%
Summer Humidity
83%
Winter Humidity
93%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 11.8° | -9.3° | -31.9° | 71.6 | 94% | 53 | 30.3 |
| Feb | 17.1° | -8.3° | -33.9° | 81.8 | 94% | 71 | 37.3 |
| Mar | 22.2° | -3.5° | -30.3° | 90.2 | 90% | 113 | 36.1 |
| Apr | 25.3° | 4° | -13° | 111.3 | 82% | 141 | 31.9 |
| May | 28.1° | 10.8° | -3.6° | 106.3 | 81% | 165 | 23.8 |
| Jun | 34.3° | 16° | 0.4° | 134.1 | 82% | 169 | 18.1 |
| Jul | 43.5° | 19.1° | 7.1° | 113.8 | 83% | 183 | 18 |
| Aug | 32° | 18.1° | 5.1° | 106.6 | 83% | 165 | 23.8 |
| Sep | 28.7° | 14.2° | -0.8° | 95.1 | 83% | 128 | 22.5 |
| Oct | 24.9° | 7.4° | -7.1° | 135.5 | 84% | 86 | 26.5 |
| Nov | 19.2° | 0.8° | -19° | 108.6 | 87% | 55 | 26.2 |
| Dec | 14.3° | -5.5° | -28.8° | 118.4 | 92% | 42 | 27.8 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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