Average annual temperature is 17.1 °C
Absolute maximum temperature: 36.5 °C
Absolute minimum temperature: -5.2 °C
Number of sunny days: 189 days
Number of rainy days: 176 days
Look at detailed online map of Willow Grove
* Weather data for Willow Grove 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) | 22.5 | 24.2 | 26.2 | 29.4 | 31.7 | 36.4 | 35.3 | 36.5 | 32.7 | 30.8 | 26.2 | 19.9 |
| Average daytime temperature (°C) | 13.3 | 15.5 | 17.3 | 22.0 | 26.7 | 30.9 | 32.2 | 31.7 | 29.0 | 23.7 | 16.6 | 13.3 |
| Average temperature (°C) | 8.4 | 9.8 | 11.4 | 15.5 | 20.9 | 24.8 | 26.8 | 26.3 | 23.2 | 18.1 | 10.9 | 8.1 |
| Average night temperature (°C) | 4.6 | 5.6 | 6.9 | 10.5 | 15.7 | 19.1 | 22.1 | 22.1 | 18.2 | 13.5 | 6.4 | 3.9 |
| Absolute minimum temperature (°C) | -3.8 | -4.6 | -5.2 | 3.8 | 7.8 | 14.8 | 17.2 | 16.3 | 13.2 | -0.3 | -1.8 | -4.1 |
| 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 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.7 | 6.3 | 7.9 | 8.6 | 11.4 | 12.4 | 10.9 | 10.2 | 10.9 | 8.4 | 7.7 | 6.9 |
| Precipitation (mm) | 187 | 130 | 266 | 126 | 103 | 73 | 90 | 140 | 29 | 51 | 49 | 70 |
| Sunny days | 13 | 14 | 16 | 14 | 12 | 15 | 9 | 13 | 17 | 24 | 23 | 19 |
| Rainy days | 18 | 14 | 15 | 16 | 19 | 15 | 22 | 18 | 13 | 7 | 7 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Willow Grove during the most sunny months:
The largest precipitation sum in Willow Grove is at