Average annual temperature is 21.1 °C
Absolute maximum temperature: 38.6 °C
Absolute minimum temperature: 0.6 °C
Number of sunny days: 154 days
Number of rainy days: 211 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) | 25.9 | 28.3 | 28.3 | 29.8 | 34.3 | 36.6 | 35.9 | 38.6 | 33.4 | 30.6 | 27.1 | 25.6 |
| Average daytime temperature (°C) | 20.0 | 22.8 | 24.0 | 26.5 | 29.2 | 31.1 | 33.0 | 34.8 | 30.6 | 26.4 | 21.3 | 17.7 |
| Average temperature (°C) | 14.5 | 17.2 | 18.4 | 20.8 | 23.2 | 25.8 | 27.9 | 29.1 | 25.2 | 20.9 | 16.1 | 13.2 |
| Average night temperature (°C) | 10.2 | 13.1 | 14.1 | 16.3 | 18.4 | 21.9 | 24.4 | 25.1 | 21.2 | 16.2 | 11.9 | 9.4 |
| Absolute minimum temperature (°C) | 1.0 | 2.9 | 2.1 | 10.9 | 13.1 | 18.1 | 22.6 | 23.6 | 17.8 | 10.1 | 3.2 | 0.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.4 | 11.1 | 12.0 | 12.9 | 13.7 | 14.1 | 13.9 | 13.2 | 12.3 | 11.4 | 10.6 | 10.2 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 7.7 | 8.4 | 8.9 | 9.8 | 10.9 | 10.6 | 11.0 | 11.0 | 9.8 | 9.5 | 7.1 | 6.4 |
| Precipitation (mm) | 239 | 92 | 128 | 162 | 113 | 240 | 132 | 134 | 102 | 43 | 95 | 337 |
| Sunny days | 18 | 13 | 15 | 8 | 10 | 5 | 1 | 7 | 12 | 26 | 19 | 20 |
| Rainy days | 13 | 15 | 16 | 22 | 21 | 25 | 30 | 24 | 18 | 5 | 11 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Lewis is at