Average annual temperature is 14.0 °C
Absolute maximum temperature: 34.8 °C
Absolute minimum temperature: -7.8 °C
Number of sunny days: 172 days
Number of rainy days: 188 days
Number of snow days: 5 days
Look at detailed online map of Willow Grove (historical)
* Weather data for Willow Grove (historical) 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) | 19.0 | 23.9 | 24.0 | 29.2 | 29.5 | 33.3 | 34.8 | 32.4 | 33.9 | 28.4 | 24.1 | 19.0 |
| Average daytime temperature (°C) | 10.0 | 13.8 | 13.5 | 20.3 | 23.5 | 27.6 | 30.4 | 28.9 | 26.2 | 20.4 | 13.9 | 10.9 |
| Average temperature (°C) | 5.1 | 6.9 | 7.2 | 13.4 | 17.1 | 21.3 | 24.6 | 23.3 | 20.4 | 14.9 | 7.9 | 6.0 |
| Average night temperature (°C) | 1.7 | 2.0 | 2.4 | 7.6 | 11.6 | 15.8 | 19.9 | 18.7 | 15.7 | 10.7 | 3.5 | 2.5 |
| Absolute minimum temperature (°C) | -5.8 | -7.8 | -7.1 | 1.0 | 3.9 | 10.8 | 16.3 | 13.8 | 11.0 | 3.6 | -5.9 | -4.2 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.7 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 4.4 | 7.2 | 7.6 | 9.2 | 10.1 | 11.2 | 11.6 | 10.8 | 9.3 | 7.7 | 7.3 | 5.2 |
| Precipitation (mm) | 109 | 83 | 89 | 64 | 71 | 64 | 122 | 86 | 55 | 71 | 43 | 94 |
| Sunny days | 8 | 14 | 15 | 16 | 17 | 15 | 7 | 14 | 16 | 15 | 21 | 14 |
| Rainy days | 21 | 13 | 15 | 14 | 14 | 15 | 24 | 17 | 14 | 16 | 9 | 16 |
| Snow days | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Willow Grove (historical) during the most sunny months:
The largest precipitation sum in Willow Grove (historical) is at