Average annual temperature is 12.2 °C
Absolute maximum temperature: 32.6 °C
Absolute minimum temperature: -12.3 °C
Number of sunny days: 181 days
Number of rainy days: 173 days
Number of snow days: 11 days
Look at detailed online map of Lewisville
* Weather data for Lewisville 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) | 16.9 | 20.2 | 21.1 | 26.1 | 29.7 | 30.9 | 32.6 | 32.3 | 31.0 | 28.1 | 23.7 | 14.5 |
| Average daytime temperature (°C) | 5.7 | 10.1 | 10.7 | 17.2 | 22.3 | 26.2 | 28.0 | 26.9 | 25.1 | 18.3 | 11.6 | 7.9 |
| Average temperature (°C) | 2.2 | 3.7 | 4.7 | 10.8 | 16.2 | 20.4 | 23.1 | 21.9 | 19.6 | 13.3 | 6.1 | 3.9 |
| Average night temperature (°C) | -0.7 | -0.6 | 0.4 | 5.4 | 10.6 | 15.1 | 18.6 | 17.4 | 14.7 | 9.3 | 2.1 | 0.9 |
| Absolute minimum temperature (°C) | -10.5 | -12.3 | -8.5 | -2.6 | 1.6 | 9.9 | 15.4 | 11.4 | 10.3 | -4.1 | -9.3 | -7.1 |
| 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) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 14.9 | 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) | 3.7 | 7.0 | 7.1 | 8.8 | 10.7 | 10.8 | 12.0 | 11.2 | 10.0 | 7.3 | 7.7 | 4.2 |
| Precipitation (mm) | 142 | 65 | 163 | 71 | 67 | 51 | 109 | 143 | 32 | 79 | 32 | 48 |
| Sunny days | 9 | 16 | 16 | 16 | 18 | 14 | 7 | 14 | 20 | 15 | 23 | 13 |
| Rainy days | 16 | 11 | 12 | 14 | 13 | 16 | 24 | 17 | 10 | 16 | 7 | 17 |
| Snow days | 6 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Lewisville during the most sunny months:
The largest precipitation sum in Lewisville is at