Average annual temperature is 11.6 °C
Absolute maximum temperature: 32.0 °C
Absolute minimum temperature: -15.6 °C
Number of sunny days: 134 days
Number of rainy days: 214 days
Number of snow days: 17 days
Look at detailed online map of Borough of Derry
* Weather data for Borough of Derry 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) | 16.3 | 19.8 | 20.4 | 28.4 | 28.3 | 32.0 | 31.0 | 32.0 | 30.7 | 26.6 | 18.5 | 17.3 |
| Average daytime temperature (°C) | 7.0 | 10.3 | 9.8 | 18.3 | 20.7 | 24.3 | 27.4 | 26.1 | 22.9 | 17.3 | 10.8 | 8.2 |
| Average temperature (°C) | 3.0 | 3.9 | 4.1 | 11.5 | 14.4 | 18.5 | 22.3 | 20.9 | 17.8 | 12.7 | 5.6 | 4.3 |
| Average night temperature (°C) | 0.1 | -1.2 | -0.3 | 5.9 | 8.2 | 13.4 | 18.2 | 16.5 | 13.6 | 8.8 | 1.5 | 1.1 |
| Absolute minimum temperature (°C) | -7.2 | -15.6 | -8.5 | -2.2 | 1.7 | 9.0 | 14.7 | 11.9 | 8.4 | 0.3 | -7.4 | -5.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 2.6 | 6.1 | 6.0 | 8.4 | 10.2 | 10.6 | 10.9 | 10.5 | 8.4 | 6.2 | 6.5 | 3.9 |
| Precipitation (mm) | 135 | 79 | 131 | 77 | 88 | 160 | 120 | 120 | 73 | 120 | 63 | 79 |
| Sunny days | 5 | 11 | 9 | 13 | 21 | 12 | 3 | 11 | 14 | 11 | 14 | 10 |
| Rainy days | 19 | 15 | 19 | 17 | 10 | 18 | 28 | 20 | 16 | 20 | 13 | 19 |
| Snow days | 7 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 2 |
The best time to visit Borough of Derry during the most sunny months:
The largest precipitation sum in Borough of Derry is at