Average annual temperature is 8.3 °C
Absolute maximum temperature: 35.4 °C
Absolute minimum temperature: -18.0 °C
Number of sunny days: 235 days
Number of rainy days: 96 days
Number of snow days: 34 days
Look at detailed online map of Lewis
* Weather data for Lewis 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) | 4.9 | 6.4 | 7.7 | 21.4 | 24.0 | 30.1 | 35.4 | 30.9 | 28.5 | 24.3 | 17.2 | 9.7 |
| Average daytime temperature (°C) | -0.3 | 1.3 | 2.9 | 11.6 | 20.8 | 24.6 | 32.3 | 28.6 | 23.7 | 17.8 | 9.7 | 3.9 |
| Average temperature (°C) | -4.3 | -4.4 | -1.5 | 4.3 | 13.5 | 17.2 | 24.8 | 21.6 | 16.5 | 10.2 | 2.8 | -2.2 |
| Average night temperature (°C) | -7.6 | -8.6 | -5.4 | -1.7 | 6.5 | 9.5 | 16.3 | 14.8 | 10.0 | 4.3 | -2.2 | -6.6 |
| Absolute minimum temperature (°C) | -15.5 | -18.0 | -12.8 | -13.5 | 2.1 | 5.8 | 12.3 | 11.6 | 5.2 | -5.7 | -14.1 | -12.9 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| 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) | 6.5 | 8.2 | 8.4 | 11.7 | 12.3 | 13.3 | 13.3 | 12.2 | 11.2 | 10.0 | 8.3 | 7.5 |
| Precipitation (mm) | 79 | 56 | 122 | 21 | 43 | 11 | 2 | 35 | 27 | 23 | 25 | 31 |
| Sunny days | 16 | 18 | 13 | 21 | 13 | 20 | 29 | 20 | 19 | 22 | 23 | 21 |
| Rainy days | 4 | 2 | 10 | 6 | 18 | 10 | 2 | 11 | 11 | 9 | 6 | 7 |
| Snow days | 11 | 8 | 8 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
The best time to visit Lewis during the most sunny months:
The largest precipitation sum in Lewis is at