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Weather & Climate
Deerfield, New Hampshire, United States
Overview
Climate data and monthly weather averages for Deerfield.
Key Metrics
Annual Avg
5.2°C
Summer Avg
17.7°C
Winter Avg
-7.9°C
Record High
36.3°C
Record Low
-32.9°C
Annual Precipitation
1184.5 mm
Avg Humidity
87%
Summer Humidity
83%
Winter Humidity
94%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 12.1° | -9.4° | -31.9° | 67.3 | 94% | 45 | 31.1 |
| Feb | 17.9° | -8.5° | -32.9° | 71.4 | 95% | 64 | 34 |
| Mar | 22° | -3.5° | -29.4° | 78.4 | 90% | 107 | 34.1 |
| Apr | 26° | 4° | -13.1° | 96.3 | 81% | 133 | 30.8 |
| May | 28.4° | 11° | -4.2° | 104.8 | 81% | 158 | 22.4 |
| Jun | 32.1° | 16° | 0.9° | 126.9 | 82% | 166 | 18.3 |
| Jul | 36.3° | 19° | 6.6° | 119 | 83% | 173 | 16.3 |
| Aug | 30.9° | 18° | 5.6° | 107 | 83% | 156 | 21.9 |
| Sep | 29.6° | 14.1° | -1.7° | 91.2 | 83% | 121 | 20.8 |
| Oct | 24.6° | 7.2° | -7.3° | 126.8 | 85% | 76 | 27.3 |
| Nov | 19.1° | 0.6° | -19.1° | 90.9 | 88% | 46 | 24.6 |
| Dec | 15.5° | -5.7° | -28.9° | 104.5 | 93% | 35 | 28.6 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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