Average annual temperature is 10.1 °C
Absolute maximum temperature: 36.2 °C
Absolute minimum temperature: -26.1 °C
Number of sunny days: 193 days
Number of rainy days: 143 days
Number of snow days: 29 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) | 6.5 | 9.2 | 12.3 | 26.2 | 32.2 | 33.0 | 33.9 | 36.2 | 34.2 | 29.1 | 17.1 | 11.4 |
| Average daytime temperature (°C) | 0.6 | 2.8 | 6.1 | 14.7 | 23.0 | 28.4 | 28.7 | 27.7 | 24.4 | 15.5 | 8.0 | 5.1 |
| Average temperature (°C) | -3.1 | -2.8 | 0.4 | 8.4 | 15.8 | 21.6 | 22.9 | 22.0 | 19.0 | 11.4 | 3.3 | 1.4 |
| Average night temperature (°C) | -5.8 | -7.3 | -4.0 | 3.4 | 9.5 | 15.1 | 17.2 | 17.2 | 14.9 | 7.6 | -0.3 | -1.3 |
| Absolute minimum temperature (°C) | -26.1 | -24.2 | -19.1 | -3.6 | 0.0 | 6.5 | 12.3 | 9.8 | 7.8 | -3.9 | -12.6 | -8.2 |
| 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 | 15.4 | 15.1 | 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) | 3.6 | 6.5 | 7.0 | 8.0 | 10.6 | 12.3 | 12.6 | 11.1 | 8.9 | 6.8 | 6.5 | 4.1 |
| Precipitation (mm) | 43 | 78 | 81 | 91 | 45 | 37 | 42 | 121 | 101 | 74 | 36 | 42 |
| Sunny days | 13 | 14 | 13 | 15 | 21 | 19 | 14 | 18 | 13 | 11 | 25 | 17 |
| Rainy days | 8 | 7 | 12 | 15 | 10 | 11 | 17 | 13 | 17 | 18 | 5 | 10 |
| Snow days | 10 | 7 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 4 |
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