Average annual temperature is 13.5 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: -10.3 °C
Number of sunny days: 174 days
Number of rainy days: 188 days
Number of snow days: 3 days
Look at detailed online map of Thornleigh
* Weather data for Thornleigh 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) | 17.1 | 21.4 | 22.5 | 29.0 | 27.8 | 33.7 | 35.3 | 33.4 | 35.9 | 27.8 | 22.2 | 17.0 |
| Average daytime temperature (°C) | 8.8 | 10.7 | 11.7 | 19.8 | 21.9 | 26.5 | 30.5 | 29.2 | 25.4 | 20.0 | 12.4 | 9.3 |
| Average temperature (°C) | 5.0 | 5.3 | 6.0 | 13.7 | 15.7 | 20.3 | 24.6 | 23.6 | 20.1 | 14.6 | 7.0 | 5.2 |
| Average night temperature (°C) | 2.0 | 1.0 | 1.4 | 8.6 | 9.9 | 15.1 | 20.2 | 19.1 | 15.9 | 10.4 | 3.0 | 1.9 |
| Absolute minimum temperature (°C) | -3.1 | -10.3 | -5.2 | 0.5 | 3.7 | 10.9 | 18.2 | 15.4 | 10.6 | 4.7 | -5.6 | -3.4 |
| 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 | 9.4 |
| 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) | 4.8 | 6.8 | 7.5 | 9.3 | 11.0 | 10.5 | 11.7 | 10.4 | 8.1 | 8.8 | 7.7 | 5.0 |
| Precipitation (mm) | 85 | 57 | 73 | 158 | 33 | 140 | 161 | 62 | 153 | 55 | 77 | 159 |
| Sunny days | 12 | 15 | 14 | 16 | 15 | 11 | 8 | 12 | 14 | 17 | 23 | 17 |
| Rainy days | 19 | 12 | 16 | 14 | 16 | 19 | 23 | 19 | 16 | 14 | 7 | 13 |
| Snow days | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Thornleigh during the most sunny months:
The largest precipitation sum in Thornleigh is at