Average annual temperature is 10.4 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: -26.2 °C
Number of sunny days: 137 days
Number of rainy days: 208 days
Number of snow days: 20 days
Look at detailed online map of Willow Brook Park
* Weather data for Willow Brook Park 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) | 9.0 | 14.3 | 15.6 | 29.4 | 32.8 | 34.2 | 31.8 | 28.7 | 33.0 | 28.4 | 17.6 | 11.3 |
| Average daytime temperature (°C) | 3.8 | 4.9 | 7.2 | 17.1 | 22.2 | 24.7 | 28.2 | 25.4 | 23.1 | 18.1 | 8.3 | 5.8 |
| Average temperature (°C) | 0.3 | -1.1 | 1.7 | 10.2 | 14.7 | 18.9 | 22.6 | 20.3 | 18.0 | 12.9 | 3.3 | 2.1 |
| Average night temperature (°C) | -2.6 | -6.1 | -2.8 | 4.6 | 8.2 | 14.0 | 18.0 | 16.3 | 13.9 | 8.8 | -0.5 | -0.4 |
| Absolute minimum temperature (°C) | -7.4 | -26.2 | -11.2 | -3.2 | 2.1 | 9.1 | 12.9 | 11.2 | 7.5 | 0.6 | -5.5 | -7.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.4 | 10.5 | 11.9 | 13.4 | 14.6 | 15.3 | 15.0 | 13.9 | 12.5 | 11.0 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.7 | 5.9 | 6.8 | 8.6 | 11.7 | 10.0 | 11.0 | 10.0 | 8.0 | 6.6 | 6.5 | 3.7 |
| Precipitation (mm) | 108 | 54 | 115 | 95 | 55 | 107 | 258 | 164 | 76 | 107 | 64 | 177 |
| Sunny days | 10 | 9 | 11 | 14 | 19 | 9 | 3 | 5 | 16 | 15 | 15 | 11 |
| Rainy days | 16 | 15 | 19 | 16 | 12 | 21 | 28 | 26 | 14 | 16 | 10 | 15 |
| Snow days | 5 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 5 |
The best time to visit Willow Brook Park during the most sunny months:
Months with the longest average daylight duration in Willow Brook Park:
The largest precipitation sum in Willow Brook Park is at