Currently: 23 °C. Sunny. (Weather station: Washington Regional Airport, USA). See more current weather
Annual Weather Averages Near St Clair
Averages are for Washington Regional Airport, which is 27 kilometers from St Clair.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in St Clair
High Temp: 32 °C
Low Temp: -5 °C
Mean Temp: 13 °C
Precipitation: 83.7 mm
Humidity: 69%
Dew Point: 7 °C
Wind: 16 km/h
Pressure: 101.72 kPa
Visibility: 14 km
January Climate & Weather Averages in St Clair
High Temp: 5 °C
Low Temp: -5 °C
Mean Temp: 0 °C
Precipitation: 60.0 mm
Humidity: 71%
Dew Point: -5 °C
Wind: 20 km/h
Pressure: 102.11 kPa
Visibility: 14 km
February Climate & Weather Averages in St Clair
High Temp: 8 °C
Low Temp: -4 °C
Mean Temp: 2 °C
Precipitation: 52.1 mm
Humidity: 67%
Dew Point: -4 °C
Wind: 20 km/h
Pressure: 102.03 kPa
Visibility: 14 km
March Climate & Weather Averages in St Clair
High Temp: 14 °C
Low Temp: 1 °C
Mean Temp: 7 °C
Precipitation: 88.6 mm
Humidity: 64%
Dew Point: 1 °C
Wind: 21 km/h
Pressure: 101.86 kPa
Visibility: 15 km
April Climate & Weather Averages in St Clair
High Temp: 20 °C
Low Temp: 6 °C
Mean Temp: 13 °C
Precipitation: 108.2 mm
Humidity: 63%
Dew Point: 6 °C
Wind: 21 km/h
Pressure: 101.47 kPa
Visibility: 15 km
May Climate & Weather Averages in St Clair
High Temp: 25 °C
Low Temp: 12 °C
Mean Temp: 19 °C
Precipitation: 115.1 mm
Humidity: 69%
Dew Point: 13 °C
Wind: 16 km/h
Pressure: 101.44 kPa
Visibility: 15 km
June Climate & Weather Averages in St Clair
High Temp: 30 °C
Low Temp: 18 °C
Mean Temp: 24 °C
Precipitation: 112.2 mm
Humidity: 71%
Dew Point: 18 °C
Wind: 14 km/h
Pressure: 101.34 kPa
Visibility: 15 km
July Climate & Weather Averages in St Clair
High Temp: 32 °C
Low Temp: 20 °C
Mean Temp: 26 °C
Precipitation: 83.6 mm
Humidity: 71%
Dew Point: 20 °C
Wind: 12 km/h
Pressure: 101.45 kPa
Visibility: 15 km
August Climate & Weather Averages in St Clair
High Temp: 31 °C
Low Temp: 19 °C
Mean Temp: 25 °C
Precipitation: 89.4 mm
Humidity: 72%
Dew Point: 19 °C
Wind: 10 km/h
Pressure: 101.53 kPa
Visibility: 14 km
September Climate & Weather Averages in St Clair
High Temp: 27 °C
Low Temp: 14 °C
Mean Temp: 20 °C
Precipitation: 75.0 mm
Humidity: 71%
Dew Point: 15 °C
Wind: 11 km/h
Pressure: 101.66 kPa
Visibility: 14 km
October Climate & Weather Averages in St Clair
High Temp: 21 °C
Low Temp: 7 °C
Mean Temp: 14 °C
Precipitation: 79.6 mm
Humidity: 70%
Dew Point: 8 °C
Wind: 15 km/h
Pressure: 101.75 kPa
Visibility: 15 km
November Climate & Weather Averages in St Clair
High Temp: 13 °C
Low Temp: 1 °C
Mean Temp: 7 °C
Precipitation: 79.4 mm
Humidity: 68%
Dew Point: 2 °C
Wind: 18 km/h
Pressure: 101.99 kPa
Visibility: 15 km
December Climate & Weather Averages in St Clair
High Temp: 7 °C
Low Temp: -3 °C
Mean Temp: 2 °C
Precipitation: 61.7 mm
Humidity: 73%
Dew Point: -3 °C
Wind: 18 km/h
Pressure: 102.01 kPa
Visibility: 14 km