Average annual temperature is 12.5 °C
Absolute maximum temperature: 31.7 °C
Absolute minimum temperature: -11.5 °C
Number of sunny days: 141 days
Number of rainy days: 211 days
Number of snow days: 13 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) | 19.9 | 21.1 | 22.3 | 27.7 | 27.8 | 31.7 | 31.6 | 30.0 | 30.4 | 26.7 | 20.7 | 18.4 |
| Average daytime temperature (°C) | 9.3 | 11.9 | 11.9 | 19.2 | 21.2 | 24.8 | 28.0 | 26.6 | 23.4 | 18.5 | 12.3 | 9.7 |
| Average temperature (°C) | 4.3 | 5.7 | 5.8 | 12.5 | 15.2 | 18.8 | 22.6 | 21.3 | 18.3 | 13.4 | 6.6 | 5.0 |
| Average night temperature (°C) | 1.0 | 1.1 | 1.2 | 6.8 | 9.8 | 13.6 | 18.4 | 17.1 | 14.2 | 9.4 | 2.4 | 1.8 |
| Absolute minimum temperature (°C) | -7.0 | -11.5 | -8.9 | -0.7 | 2.3 | 7.4 | 14.5 | 11.7 | 7.7 | 1.5 | -7.4 | -5.3 |
| 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 | 12.5 | 11.2 | 10.0 | 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) | 3.2 | 6.4 | 6.7 | 8.8 | 10.0 | 10.9 | 11.6 | 10.5 | 9.1 | 7.3 | 6.9 | 4.6 |
| Precipitation (mm) | 138 | 95 | 117 | 59 | 107 | 128 | 159 | 166 | 100 | 87 | 59 | 90 |
| Sunny days | 6 | 11 | 9 | 17 | 17 | 12 | 5 | 7 | 12 | 15 | 18 | 12 |
| Rainy days | 21 | 14 | 19 | 13 | 14 | 18 | 26 | 24 | 18 | 16 | 11 | 17 |
| Snow days | 4 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The best time to visit Thornton during the most sunny months:
The largest precipitation sum in Thornton is at