Average annual temperature is 12.2 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: -15.6 °C
Number of sunny days: 171 days
Number of rainy days: 190 days
Number of snow days: 4 days
Look at detailed online map of Dunellen
* Weather data for Dunellen 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) | 18.2 | 18.7 | 15.5 | 31.7 | 30.3 | 34.1 | 33.6 | 30.9 | 34.2 | 27.8 | 19.4 | 15.1 |
| Average daytime temperature (°C) | 8.1 | 8.1 | 10.0 | 18.6 | 22.1 | 26.1 | 29.7 | 27.4 | 24.0 | 19.0 | 10.7 | 8.4 |
| Average temperature (°C) | 4.0 | 2.8 | 4.4 | 12.1 | 15.4 | 19.7 | 23.7 | 22.1 | 18.9 | 13.6 | 5.4 | 4.1 |
| Average night temperature (°C) | 0.4 | -1.8 | -0.3 | 6.7 | 8.8 | 14.2 | 18.8 | 17.7 | 14.8 | 9.3 | 1.0 | 0.5 |
| Absolute minimum temperature (°C) | -5.3 | -15.6 | -5.3 | -1.1 | 2.9 | 8.5 | 14.7 | 14.2 | 8.7 | 4.4 | -5.5 | -6.0 |
| 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) | 9.6 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| 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) | 4.7 | 6.9 | 7.4 | 8.7 | 11.7 | 10.1 | 11.5 | 10.2 | 7.9 | 7.8 | 7.5 | 5.0 |
| Precipitation (mm) | 115 | 45 | 103 | 123 | 37 | 115 | 149 | 99 | 210 | 62 | 76 | 204 |
| Sunny days | 15 | 18 | 11 | 15 | 19 | 10 | 7 | 13 | 14 | 16 | 18 | 15 |
| Rainy days | 15 | 8 | 19 | 15 | 12 | 20 | 24 | 18 | 16 | 15 | 12 | 16 |
| Snow days | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Dunellen during the most sunny months:
The largest precipitation sum in Dunellen is at