Average annual temperature is 10.7 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: -23.3 °C
Number of sunny days: 220 days
Number of rainy days: 116 days
Number of snow days: 29 days
Look at detailed online map of Plymouth County
* Weather data for Plymouth 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) | 3.6 | 12.7 | 18.0 | 29.1 | 31.2 | 32.8 | 35.9 | 37.9 | 35.6 | 31.5 | 18.3 | 12.2 |
| Average daytime temperature (°C) | -2.9 | 1.3 | 6.4 | 16.8 | 25.7 | 29.5 | 28.6 | 29.8 | 27.0 | 16.8 | 10.6 | 5.1 |
| Average temperature (°C) | -6.2 | -4.4 | 0.1 | 9.7 | 18.8 | 23.6 | 23.0 | 24.0 | 21.2 | 11.8 | 5.0 | 0.7 |
| Average night temperature (°C) | -9.3 | -8.8 | -4.2 | 4.2 | 12.8 | 17.8 | 17.6 | 18.9 | 16.1 | 7.8 | 0.6 | -2.5 |
| Absolute minimum temperature (°C) | -23.3 | -22.8 | -13.2 | -5.1 | 1.6 | 10.5 | 9.4 | 11.6 | 9.6 | -6.4 | -8.7 | -8.2 |
| 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 | 9.0 |
| Daylight mean duration (h) | 9.5 | 10.5 | 11.9 | 13.4 | 14.6 | 15.3 | 15.0 | 13.9 | 12.5 | 11.1 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.1 | 6.7 | 7.4 | 9.4 | 11.6 | 12.9 | 12.1 | 11.3 | 9.9 | 7.4 | 6.9 | 5.3 |
| Precipitation (mm) | 67 | 47 | 33 | 54 | 55 | 56 | 57 | 54 | 30 | 162 | 3 | 58 |
| Sunny days | 18 | 18 | 18 | 17 | 18 | 17 | 13 | 19 | 17 | 16 | 26 | 23 |
| Rainy days | 4 | 4 | 7 | 10 | 13 | 13 | 18 | 12 | 13 | 13 | 3 | 6 |
| Snow days | 9 | 6 | 6 | 3 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 2 |
The best time to visit Plymouth County during the most sunny months:
Months with the longest average daylight duration in Plymouth County:
The largest precipitation sum in Plymouth County is at