Average annual temperature is 14.0 °C
Absolute maximum temperature: 38.6 °C
Absolute minimum temperature: -12.0 °C
Number of sunny days: 203 days
Number of rainy days: 155 days
Number of snow days: 7 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) | 13.4 | 18.6 | 23.2 | 27.9 | 32.6 | 38.2 | 38.2 | 38.6 | 36.2 | 31.9 | 24.2 | 15.9 |
| Average daytime temperature (°C) | 6.6 | 10.1 | 11.4 | 20.1 | 26.3 | 30.7 | 32.1 | 31.2 | 28.7 | 20.5 | 13.1 | 9.1 |
| Average temperature (°C) | 1.3 | 3.0 | 5.7 | 13.0 | 19.6 | 24.2 | 25.9 | 25.6 | 22.3 | 15.1 | 7.4 | 4.9 |
| Average night temperature (°C) | -2.3 | -2.2 | 1.3 | 7.2 | 13.6 | 18.7 | 21.1 | 21.1 | 17.0 | 10.6 | 2.9 | 1.7 |
| Absolute minimum temperature (°C) | -12.0 | -11.9 | -8.4 | -0.4 | 4.2 | 12.0 | 16.4 | 15.6 | 12.9 | -2.6 | -6.0 | -3.9 |
| 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 | 14.9 | 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) | 6.1 | 7.7 | 7.1 | 10.3 | 10.6 | 12.4 | 10.9 | 11.1 | 10.5 | 7.9 | 6.8 | 5.0 |
| Precipitation (mm) | 44 | 80 | 100 | 50 | 68 | 121 | 106 | 152 | 90 | 134 | 26 | 119 |
| Sunny days | 17 | 17 | 15 | 19 | 17 | 15 | 12 | 16 | 21 | 17 | 22 | 15 |
| Rainy days | 10 | 11 | 15 | 11 | 14 | 15 | 19 | 15 | 9 | 14 | 6 | 16 |
| Snow days | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 |
The best time to visit Thornton during the most sunny months:
The largest precipitation sum in Thornton is at