Average annual temperature is 8.9 °C
Absolute maximum temperature: 29.8 °C
Absolute minimum temperature: -16.7 °C
Number of sunny days: 113 days
Number of rainy days: 214 days
Number of snow days: 38 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) | 12.7 | 16.5 | 14.3 | 26.1 | 28.3 | 29.4 | 29.8 | 29.0 | 29.4 | 26.2 | 15.6 | 12.7 |
| Average daytime temperature (°C) | 3.2 | 5.8 | 4.7 | 14.9 | 18.5 | 22.4 | 25.1 | 22.7 | 20.9 | 14.5 | 7.0 | 5.5 |
| Average temperature (°C) | -0.6 | -0.8 | 0.0 | 8.3 | 12.2 | 17.1 | 20.1 | 18.1 | 16.0 | 10.7 | 3.1 | 2.3 |
| Average night temperature (°C) | -3.4 | -5.3 | -3.6 | 3.2 | 6.8 | 12.6 | 15.9 | 14.6 | 12.3 | 7.8 | 0.0 | -0.1 |
| Absolute minimum temperature (°C) | -11.0 | -16.7 | -10.8 | -6.3 | -0.6 | 8.3 | 12.0 | 9.6 | 7.5 | 0.1 | -9.0 | -7.8 |
| 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) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.9 | 12.5 | 11.1 | 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) | 1.9 | 5.6 | 5.8 | 8.4 | 11.0 | 10.9 | 11.4 | 10.1 | 8.9 | 5.7 | 5.4 | 3.4 |
| Precipitation (mm) | 160 | 91 | 133 | 102 | 49 | 79 | 99 | 178 | 43 | 102 | 88 | 115 |
| Sunny days | 6 | 6 | 7 | 10 | 23 | 9 | 4 | 5 | 14 | 11 | 9 | 9 |
| Rainy days | 14 | 15 | 14 | 19 | 8 | 21 | 27 | 26 | 16 | 20 | 17 | 17 |
| Snow days | 11 | 7 | 10 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 5 |
The best time to visit Thornton during the most sunny months:
The largest precipitation sum in Thornton is at