Average annual temperature is 8.9 °C
Absolute maximum temperature: 37.0 °C
Absolute minimum temperature: -29.9 °C
Number of sunny days: 211 days
Number of rainy days: 117 days
Number of snow days: 37 days
Look at detailed online map of Thornton
* Weather data for Thornton 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) | 10.0 | 14.3 | 19.1 | 27.4 | 26.5 | 33.2 | 35.8 | 37.0 | 35.5 | 29.8 | 22.2 | 14.7 |
| Average daytime temperature (°C) | -0.6 | 5.4 | 9.2 | 16.8 | 21.5 | 23.7 | 30.1 | 30.2 | 27.3 | 19.0 | 12.6 | 7.8 |
| Average temperature (°C) | -6.6 | -3.7 | 0.9 | 7.5 | 14.1 | 16.6 | 22.0 | 22.1 | 18.5 | 10.7 | 3.4 | 0.1 |
| Average night temperature (°C) | -11.1 | -9.9 | -5.1 | 0.0 | 7.6 | 10.7 | 14.5 | 15.0 | 10.5 | 3.8 | -2.7 | -4.6 |
| Absolute minimum temperature (°C) | -29.9 | -24.6 | -9.5 | -8.1 | 3.8 | 7.4 | 10.5 | 11.8 | 5.7 | -12.9 | -9.6 | -10.5 |
| 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 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.2 | 10.0 | 9.4 |
| 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) | 6.2 | 8.8 | 9.3 | 10.4 | 10.2 | 10.8 | 12.7 | 11.3 | 10.8 | 9.0 | 7.7 | 7.0 |
| Precipitation (mm) | 34 | 13 | 20 | 41 | 147 | 161 | 49 | 67 | 34 | 18 | 10 | 16 |
| Sunny days | 15 | 21 | 17 | 18 | 9 | 6 | 16 | 17 | 22 | 22 | 24 | 24 |
| Rainy days | 2 | 1 | 7 | 9 | 22 | 24 | 15 | 14 | 8 | 7 | 5 | 3 |
| Snow days | 14 | 6 | 7 | 3 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 4 |
The best time to visit Thornton during the most sunny months:
The largest precipitation sum in Thornton is at