Annual Weather Averages Near Lewiston
Averages are for Auburn-Lewiston, which is 7 kilometers from Lewiston.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Lewiston
High Temp: 27 °C
Low Temp: -11 °C
Mean Temp: 8 °C
Precipitation: 69.0 mm
Humidity: 70%
Dew Point: 2 °C
Wind: 17 km/h
Pressure: 101.58 kPa
Visibility: 15 km
January Climate & Weather Averages in Lewiston
High Temp: -1 °C
Low Temp: -11 °C
Mean Temp: -6 °C
Precipitation: 55.7 mm
Humidity: 67%
Dew Point: -12 °C
Wind: 18 km/h
Pressure: 101.55 kPa
Visibility: 15 km
February Climate & Weather Averages in Lewiston
High Temp: 0 °C
Low Temp: -10 °C
Mean Temp: -5 °C
Precipitation: 51.3 mm
Humidity: 64%
Dew Point: -11 °C
Wind: 19 km/h
Pressure: 101.54 kPa
Visibility: 15 km
March Climate & Weather Averages in Lewiston
High Temp: 5 °C
Low Temp: -5 °C
Mean Temp: 0 °C
Precipitation: 61.5 mm
Humidity: 63%
Dew Point: -7 °C
Wind: 21 km/h
Pressure: 101.59 kPa
Visibility: 15 km
April Climate & Weather Averages in Lewiston
High Temp: 12 °C
Low Temp: 1 °C
Mean Temp: 6 °C
Precipitation: 80.6 mm
Humidity: 62%
Dew Point: -2 °C
Wind: 21 km/h
Pressure: 101.47 kPa
Visibility: 15 km
May Climate & Weather Averages in Lewiston
High Temp: 19 °C
Low Temp: 7 °C
Mean Temp: 13 °C
Precipitation: 65.9 mm
Humidity: 67%
Dew Point: 5 °C
Wind: 18 km/h
Pressure: 101.55 kPa
Visibility: 15 km
June Climate & Weather Averages in Lewiston
High Temp: 24 °C
Low Temp: 12 °C
Mean Temp: 18 °C
Precipitation: 74.7 mm
Humidity: 72%
Dew Point: 11 °C
Wind: 16 km/h
Pressure: 101.39 kPa
Visibility: 14 km
July Climate & Weather Averages in Lewiston
High Temp: 27 °C
Low Temp: 15 °C
Mean Temp: 21 °C
Precipitation: 77.0 mm
Humidity: 74%
Dew Point: 15 °C
Wind: 14 km/h
Pressure: 101.41 kPa
Visibility: 14 km
August Climate & Weather Averages in Lewiston
High Temp: 26 °C
Low Temp: 14 °C
Mean Temp: 20 °C
Precipitation: 62.4 mm
Humidity: 75%
Dew Point: 14 °C
Wind: 13 km/h
Pressure: 101.59 kPa
Visibility: 14 km
September Climate & Weather Averages in Lewiston
High Temp: 22 °C
Low Temp: 10 °C
Mean Temp: 16 °C
Precipitation: 63.3 mm
Humidity: 76%
Dew Point: 11 °C
Wind: 14 km/h
Pressure: 101.79 kPa
Visibility: 15 km
October Climate & Weather Averages in Lewiston
High Temp: 14 °C
Low Temp: 4 °C
Mean Temp: 9 °C
Precipitation: 86.1 mm
Humidity: 74%
Dew Point: 4 °C
Wind: 16 km/h
Pressure: 101.71 kPa
Visibility: 15 km
November Climate & Weather Averages in Lewiston
High Temp: 8 °C
Low Temp: -2 °C
Mean Temp: 3 °C
Precipitation: 76.2 mm
Humidity: 71%
Dew Point: -2 °C
Wind: 17 km/h
Pressure: 101.77 kPa
Visibility: 15 km
December Climate & Weather Averages in Lewiston
High Temp: 2 °C
Low Temp: -7 °C
Mean Temp: -2 °C
Precipitation: 73.1 mm
Humidity: 71%
Dew Point: -8 °C
Wind: 17 km/h
Pressure: 101.63 kPa
Visibility: 14 km