Average annual temperature is 13.2 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: -14.9 °C
Number of sunny days: 181 days
Number of rainy days: 181 days
Number of snow days: 3 days
Look at detailed online map of Piscataway
* Weather data for Piscataway 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) | 18.9 | 19.2 | 16.5 | 31.6 | 30.9 | 32.5 | 35.0 | 31.8 | 35.8 | 28.4 | 20.3 | 17.0 |
| Average daytime temperature (°C) | 9.1 | 8.9 | 10.8 | 19.0 | 22.4 | 26.6 | 30.5 | 28.2 | 25.1 | 20.0 | 11.7 | 9.4 |
| Average temperature (°C) | 5.0 | 3.7 | 5.4 | 13.0 | 16.1 | 20.5 | 24.8 | 23.1 | 20.1 | 14.6 | 6.6 | 5.1 |
| Average night temperature (°C) | 1.5 | -0.7 | 0.8 | 8.0 | 10.1 | 15.5 | 20.2 | 18.9 | 16.0 | 10.4 | 2.3 | 1.6 |
| Absolute minimum temperature (°C) | -4.1 | -14.9 | -4.0 | 1.0 | 4.2 | 10.1 | 16.0 | 15.4 | 9.8 | 6.0 | -4.4 | -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 | 9.3 |
| 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 | 6.8 | 7.4 | 8.5 | 11.7 | 10.1 | 11.5 | 10.2 | 7.8 | 7.8 | 7.5 | 5.1 |
| Precipitation (mm) | 105 | 48 | 109 | 126 | 47 | 92 | 173 | 103 | 211 | 69 | 60 | 208 |
| Sunny days | 15 | 17 | 14 | 15 | 21 | 10 | 10 | 14 | 12 | 17 | 20 | 16 |
| Rainy days | 16 | 9 | 16 | 15 | 10 | 20 | 21 | 17 | 18 | 14 | 10 | 15 |
| Snow days | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Piscataway during the most sunny months:
The largest precipitation sum in Piscataway is at