Average annual temperature is 11.0 °C
Absolute maximum temperature: 32.1 °C
Absolute minimum temperature: -17.2 °C
Number of sunny days: 137 days
Number of rainy days: 201 days
Number of snow days: 27 days
Look at detailed online map of Town of Lewiston
* Weather data for Town of Lewiston 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) | 8.0 | 15.4 | 12.3 | 27.6 | 30.1 | 30.1 | 32.1 | 27.6 | 31.8 | 28.6 | 15.5 | 14.8 |
| Average daytime temperature (°C) | 3.3 | 5.3 | 5.8 | 15.2 | 19.5 | 24.0 | 27.3 | 24.6 | 23.3 | 16.8 | 8.8 | 7.0 |
| Average temperature (°C) | 0.6 | 0.2 | 1.8 | 9.5 | 13.8 | 19.3 | 22.9 | 20.7 | 18.9 | 13.6 | 5.4 | 4.3 |
| Average night temperature (°C) | -1.7 | -3.8 | -1.3 | 4.9 | 8.6 | 15.3 | 19.2 | 17.4 | 15.3 | 11.0 | 2.5 | 2.1 |
| Absolute minimum temperature (°C) | -10.8 | -17.2 | -9.0 | -3.9 | 3.1 | 11.1 | 16.5 | 12.1 | 10.7 | 2.2 | -4.1 | -4.1 |
| 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) | 9.4 | 10.5 | 11.9 | 13.4 | 14.7 | 15.3 | 15.0 | 13.9 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 9.0 | 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) | 2.4 | 6.1 | 6.2 | 8.6 | 11.6 | 10.9 | 11.5 | 10.3 | 9.5 | 5.7 | 5.6 | 2.7 |
| Precipitation (mm) | 103 | 71 | 95 | 120 | 39 | 115 | 138 | 110 | 17 | 75 | 55 | 98 |
| Sunny days | 6 | 10 | 11 | 11 | 21 | 15 | 8 | 10 | 14 | 8 | 12 | 11 |
| Rainy days | 17 | 11 | 11 | 19 | 10 | 15 | 23 | 21 | 16 | 23 | 16 | 19 |
| Snow days | 8 | 7 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 |
The best time to visit Town of Lewiston during the most sunny months:
Months with the longest average daylight duration in Town of Lewiston:
The largest precipitation sum in Town of Lewiston is at