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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

MonthHigh (°C)Avg (°C)Low (°C)Rain (mm)Humidity (%)Sunshine (h)Wind (kph)
Jan12.4°-1.3°-19°102.985%5370.8
Feb11.3°-1.1°-16.9°102.283%7175.7
Mar16.2°1.4°-15°110.481%11369.2
Apr18.6°5.7°-4.2°120.983%14171.6
May23.2°10.2°101.487%16546.7
Jun23.9°15°7.3°126.688%16949.8
Jul26.4°18.8°12.2°95.888%18342.4
Aug26.4°19.3°12.1°93.686%16561.1
Sep25.6°16.4°8.6°96.683%12850.2
Oct20.9°11.5°145.181%8667.8
Nov17.1°6.5°-9.2°124.881%5560.5
Dec14.5°-14.6°14183%4262.8

Frequently Asked Questions

Sources: NASA POWER · Last updated: 2025

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