Average annual temperature is 7.6 °C
Absolute maximum temperature: 30.6 °C
Absolute minimum temperature: -31.7 °C
Number of sunny days: 130 days
Number of rainy days: 197 days
Number of snow days: 38 days
Look at detailed online map of Town of Londonderry
* Weather data for Town of Londonderry 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) | 7.9 | 10.6 | 9.5 | 26.5 | 27.9 | 30.6 | 28.9 | 24.7 | 29.2 | 26.2 | 14.8 | 12.8 |
| Average daytime temperature (°C) | 1.3 | 1.5 | 3.5 | 12.5 | 17.8 | 21.0 | 24.9 | 22.2 | 20.3 | 15.2 | 5.1 | 3.9 |
| Average temperature (°C) | -2.1 | -4.2 | -1.0 | 6.8 | 11.4 | 15.9 | 20.1 | 17.6 | 15.6 | 10.5 | 0.4 | -0.2 |
| Average night temperature (°C) | -5.4 | -9.5 | -5.2 | 1.9 | 5.6 | 11.4 | 16.0 | 13.7 | 11.7 | 6.8 | -3.4 | -3.4 |
| Absolute minimum temperature (°C) | -12.8 | -31.7 | -13.2 | -12.8 | -2.2 | 4.8 | 10.2 | 7.1 | 5.4 | -2.1 | -12.7 | -11.5 |
| 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) | 9.4 | 10.5 | 11.9 | 13.4 | 14.7 | 15.3 | 15.0 | 13.9 | 12.5 | 11.0 | 9.7 | 9.0 |
| 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 | 8.0 |
| Sunshine mean duration (h) | 3.5 | 6.2 | 6.7 | 8.1 | 11.5 | 10.1 | 10.5 | 10.2 | 8.3 | 6.9 | 6.7 | 4.5 |
| Precipitation (mm) | 137 | 61 | 144 | 112 | 87 | 118 | 285 | 110 | 103 | 123 | 67 | 162 |
| Sunny days | 7 | 10 | 10 | 13 | 18 | 2 | 3 | 6 | 15 | 15 | 17 | 14 |
| Rainy days | 15 | 8 | 10 | 17 | 13 | 28 | 28 | 25 | 15 | 16 | 8 | 14 |
| Snow days | 9 | 10 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 3 |
The best time to visit Town of Londonderry during the most sunny months:
Months with the longest average daylight duration in Town of Londonderry:
The largest precipitation sum in Town of Londonderry is at