Average annual temperature is 6.1 °C
Absolute maximum temperature: 32.3 °C
Absolute minimum temperature: -32.0 °C
Number of sunny days: 130 days
Number of rainy days: 174 days
Number of snow days: 61 days
Look at detailed online map of Aroostook County
* Weather data for Aroostook County United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 4.4 | 5.8 | 5.8 | 17.3 | 30.4 | 32.3 | 31.2 | 24.3 | 29.3 | 25.2 | 9.5 | 11.7 |
| Average daytime temperature (°C) | -3.0 | -4.7 | 2.0 | 9.6 | 16.5 | 20.1 | 25.9 | 21.2 | 21.2 | 15.0 | 2.8 | 0.6 |
| Average temperature (°C) | -6.5 | -9.9 | -2.2 | 4.1 | 10.5 | 15.4 | 21.1 | 17.0 | 16.2 | 10.6 | -1.3 | -2.9 |
| Average night temperature (°C) | -9.8 | -14.2 | -5.5 | -0.5 | 5.4 | 11.5 | 17.2 | 13.5 | 12.3 | 7.3 | -4.6 | -5.9 |
| Absolute minimum temperature (°C) | -20.2 | -32.0 | -13.2 | -8.8 | -1.3 | 5.0 | 11.6 | 9.5 | 5.9 | -3.6 | -13.0 | -13.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.0 | 10.3 | 11.9 | 13.6 | 15.0 | 15.8 | 15.4 | 14.2 | 12.6 | 10.9 | 9.4 | 8.6 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 2.8 | 6.6 | 6.4 | 8.1 | 9.6 | 7.1 | 10.7 | 8.7 | 8.6 | 5.8 | 5.4 | 3.6 |
| Precipitation (mm) | 144 | 45 | 76 | 52 | 99 | 146 | 98 | 173 | 118 | 110 | 57 | 108 |
| Sunny days | 11 | 8 | 10 | 15 | 15 | 4 | 1 | 5 | 15 | 14 | 15 | 17 |
| Rainy days | 7 | 4 | 6 | 13 | 16 | 26 | 30 | 26 | 15 | 16 | 7 | 8 |
| Snow days | 13 | 16 | 15 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 8 | 6 |
The best time to visit Aroostook County during the most sunny months:
Months with the longest average daylight duration in Aroostook County:
The largest precipitation sum in Aroostook County is at