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Weather & Climate
Falmouth, Maine, United States
Overview
Climate data and monthly weather averages for Falmouth.
Key Metrics
Annual Avg
8.7°C
Summer Avg
17.7°C
Winter Avg
-0.1°C
Record High
26.4°C
Record Low
-19°C
Annual Precipitation
1361.3 mm
Avg Humidity
84%
Summer Humidity
87%
Winter Humidity
84%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 12.4° | -1.3° | -19° | 102.9 | 85% | 53 | 70.8 |
| Feb | 11.3° | -1.1° | -16.9° | 102.2 | 83% | 71 | 75.7 |
| Mar | 16.2° | 1.4° | -15° | 110.4 | 81% | 113 | 69.2 |
| Apr | 18.6° | 5.7° | -4.2° | 120.9 | 83% | 141 | 71.6 |
| May | 23.2° | 10.2° | 3° | 101.4 | 87% | 165 | 46.7 |
| Jun | 23.9° | 15° | 7.3° | 126.6 | 88% | 169 | 49.8 |
| Jul | 26.4° | 18.8° | 12.2° | 95.8 | 88% | 183 | 42.4 |
| Aug | 26.4° | 19.3° | 12.1° | 93.6 | 86% | 165 | 61.1 |
| Sep | 25.6° | 16.4° | 8.6° | 96.6 | 83% | 128 | 50.2 |
| Oct | 20.9° | 11.5° | 2° | 145.1 | 81% | 86 | 67.8 |
| Nov | 17.1° | 6.5° | -9.2° | 124.8 | 81% | 55 | 60.5 |
| Dec | 14.5° | 2° | -14.6° | 141 | 83% | 42 | 62.8 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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