Average annual temperature is 20.1 °C
Absolute maximum temperature: 42.3 °C
Absolute minimum temperature: -3.0 °C
Number of sunny days: 208 days
Number of rainy days: 157 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) | 26.1 | 27.1 | 27.5 | 31.8 | 34.8 | 38.4 | 39.9 | 42.3 | 40.8 | 32.6 | 27.7 | 24.6 |
| Average daytime temperature (°C) | 15.7 | 16.0 | 20.3 | 22.9 | 28.4 | 33.1 | 35.6 | 38.6 | 33.4 | 25.8 | 18.6 | 15.9 |
| Average temperature (°C) | 10.4 | 10.0 | 14.9 | 17.7 | 23.1 | 27.6 | 30.3 | 33.2 | 28.1 | 20.5 | 13.9 | 10.6 |
| Average night temperature (°C) | 6.4 | 5.8 | 11.0 | 13.4 | 19.0 | 23.2 | 25.9 | 27.8 | 23.6 | 16.6 | 10.0 | 6.7 |
| Absolute minimum temperature (°C) | -2.8 | -3.0 | 1.3 | 8.6 | 12.9 | 19.4 | 21.7 | 22.6 | 20.0 | 3.3 | 2.1 | 0.5 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.3 | 14.1 | 13.3 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.0 | 6.3 | 7.9 | 8.5 | 9.2 | 11.0 | 11.8 | 12.2 | 10.1 | 8.3 | 7.8 | 7.4 |
| Precipitation (mm) | 49 | 86 | 218 | 112 | 95 | 140 | 97 | 1 | 45 | 311 | 48 | 69 |
| Sunny days | 23 | 12 | 12 | 15 | 9 | 8 | 19 | 28 | 18 | 20 | 22 | 22 |
| Rainy days | 8 | 16 | 19 | 15 | 22 | 22 | 12 | 3 | 12 | 11 | 8 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Lewisville during the most sunny months:
The largest precipitation sum in Lewisville is at