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Weather & Climate
Aroostook County, Maine, United States
Overview
Climate data and monthly weather averages for Aroostook County.
Key Metrics
Annual Avg
3.8°C
Summer Avg
17.1°C
Winter Avg
-10.4°C
Record High
31.7°C
Record Low
-37.5°C
Annual Precipitation
1141.6 mm
Avg Humidity
88%
Summer Humidity
83%
Winter Humidity
95%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 9° | -12.3° | -37.5° | 65.7 | 95% | 44 | 30.9 |
| Feb | 7.8° | -10.9° | -34.6° | 61.6 | 95% | 64 | 39.9 |
| Mar | 20.8° | -5.8° | -29.5° | 76.9 | 94% | 109 | 34.1 |
| Apr | 23.1° | 2.6° | -15.8° | 90.6 | 83% | 137 | 30.1 |
| May | 29.3° | 10° | -4.1° | 96.1 | 81% | 159 | 27.1 |
| Jun | 31.7° | 15.2° | -0.6° | 118.8 | 82% | 167 | 20.6 |
| Jul | 31.3° | 18.5° | 6.4° | 114.4 | 84% | 173 | 25.7 |
| Aug | 30.4° | 17.6° | 3.7° | 103.2 | 84% | 152 | 21.1 |
| Sep | 30.2° | 13.4° | -2.9° | 90.6 | 83% | 116 | 29 |
| Oct | 24.6° | 6.3° | -7.5° | 120.3 | 86% | 72 | 28.2 |
| Nov | 18.7° | -0.6° | -18.2° | 100.2 | 89% | 41 | 27.7 |
| Dec | 13.2° | -8° | -29.9° | 103.2 | 95% | 32 | 29.1 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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