Average annual temperature is 10.5 °C
Absolute maximum temperature: 30.9 °C
Absolute minimum temperature: -14.2 °C
Number of sunny days: 151 days
Number of rainy days: 192 days
Number of snow days: 22 days
Look at detailed online map of Thornwood
* Weather data for Thornwood 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) | 15.7 | 18.5 | 19.5 | 24.3 | 23.7 | 25.7 | 30.9 | 30.6 | 30.6 | 23.9 | 19.0 | 13.7 |
| Average daytime temperature (°C) | 6.5 | 9.7 | 9.7 | 17.1 | 18.3 | 21.2 | 26.4 | 25.7 | 22.2 | 16.7 | 10.2 | 7.5 |
| Average temperature (°C) | 2.2 | 3.9 | 3.7 | 10.5 | 12.7 | 16.2 | 20.8 | 20.0 | 16.5 | 11.4 | 4.5 | 3.0 |
| Average night temperature (°C) | -1.0 | -0.6 | -0.6 | 5.5 | 8.2 | 11.9 | 16.4 | 15.9 | 12.2 | 7.4 | 0.1 | -0.4 |
| Absolute minimum temperature (°C) | -9.4 | -14.2 | -12.6 | -3.2 | 0.6 | 6.9 | 12.5 | 9.8 | 7.6 | 1.2 | -10.1 | -7.1 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.6 | 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) | 4.3 | 6.7 | 7.4 | 9.3 | 9.5 | 10.3 | 12.1 | 10.5 | 9.3 | 7.7 | 7.0 | 4.7 |
| Precipitation (mm) | 59 | 83 | 71 | 87 | 97 | 74 | 70 | 42 | 83 | 20 | 59 | 86 |
| Sunny days | 5 | 10 | 11 | 15 | 16 | 13 | 8 | 11 | 14 | 15 | 20 | 13 |
| Rainy days | 18 | 16 | 13 | 15 | 15 | 17 | 23 | 20 | 16 | 16 | 8 | 15 |
| Snow days | 8 | 2 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 |
The best time to visit Thornwood during the most sunny months:
The largest precipitation sum in Thornwood is at