Average annual temperature is 9.4 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: -26.6 °C
Number of sunny days: 205 days
Number of rainy days: 134 days
Number of snow days: 26 days
Look at detailed online map of City of Lewisville
* Weather data for City of 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) | 2.6 | 4.9 | 14.0 | 28.1 | 30.9 | 31.1 | 34.7 | 35.9 | 34.6 | 30.8 | 18.9 | 12.1 |
| Average daytime temperature (°C) | -4.1 | -1.4 | 2.5 | 13.7 | 24.0 | 28.1 | 28.3 | 28.3 | 26.0 | 15.7 | 9.4 | 5.2 |
| Average temperature (°C) | -7.5 | -6.9 | -2.7 | 7.5 | 17.5 | 22.5 | 22.4 | 22.7 | 20.3 | 11.1 | 4.0 | 0.7 |
| Average night temperature (°C) | -10.6 | -11.3 | -7.1 | 2.6 | 11.5 | 16.9 | 17.0 | 18.2 | 15.6 | 7.4 | -0.1 | -2.3 |
| Absolute minimum temperature (°C) | -23.3 | -26.6 | -16.0 | -5.8 | 1.3 | 10.8 | 11.5 | 11.5 | 8.1 | -4.5 | -11.5 | -7.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.3 | 10.5 | 11.9 | 13.4 | 14.7 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 4.3 | 6.7 | 6.7 | 8.4 | 11.2 | 13.0 | 12.6 | 11.6 | 10.2 | 7.6 | 6.6 | 5.1 |
| Precipitation (mm) | 69 | 74 | 40 | 79 | 150 | 90 | 59 | 118 | 64 | 135 | 5 | 69 |
| Sunny days | 18 | 18 | 17 | 13 | 17 | 14 | 14 | 19 | 17 | 12 | 24 | 22 |
| Rainy days | 6 | 7 | 7 | 15 | 14 | 16 | 17 | 12 | 13 | 16 | 5 | 6 |
| Snow days | 7 | 3 | 7 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | 3 |
The best time to visit City of Lewisville during the most sunny months:
Months with the longest average daylight duration in City of Lewisville:
The largest precipitation sum in City of Lewisville is at