Annual Weather Averages in Swan River
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Swan River
High Temp: 76 °F
Low Temp: -7 °F
Mean Temp: 35 °F
Precipitation: 1.35"
Humidity: 73%
Dew Point: 26 °F
Wind: 13 mph
Pressure: 30.01 "Hg
Visibility: 9 mi
January Climate & Weather Averages in Swan River
High Temp: 11 °F
Low Temp: -7 °F
Mean Temp: 2 °F
Precipitation: 0.43"
Humidity: 76%
Dew Point: -4 °F
Wind: 14 mph
Pressure: 30.12 "Hg
Visibility: 9 mi
February Climate & Weather Averages in Swan River
High Temp: 15 °F
Low Temp: -5 °F
Mean Temp: 5 °F
Precipitation: 0.34"
Humidity: 75%
Dew Point: -1 °F
Wind: 14 mph
Pressure: 30.13 "Hg
Visibility: 9 mi
March Climate & Weather Averages in Swan River
High Temp: 29 °F
Low Temp: 9 °F
Mean Temp: 19 °F
Precipitation: 1.06"
Humidity: 75%
Dew Point: 12 °F
Wind: 13 mph
Pressure: 30.10 "Hg
Visibility: 9 mi
April Climate & Weather Averages in Swan River
High Temp: 47 °F
Low Temp: 25 °F
Mean Temp: 36 °F
Precipitation: 0.93"
Humidity: 66%
Dew Point: 24 °F
Wind: 14 mph
Pressure: 30.04 "Hg
Visibility: 9 mi
May Climate & Weather Averages in Swan River
High Temp: 62 °F
Low Temp: 37 °F
Mean Temp: 50 °F
Precipitation: 1.65"
Humidity: 59%
Dew Point: 35 °F
Wind: 15 mph
Pressure: 29.98 "Hg
Visibility: 9 mi
June Climate & Weather Averages in Swan River
High Temp: 71 °F
Low Temp: 49 °F
Mean Temp: 60 °F
Precipitation: 2.78"
Humidity: 69%
Dew Point: 49 °F
Wind: 13 mph
Pressure: 29.89 "Hg
Visibility: 9 mi
July Climate & Weather Averages in Swan River
High Temp: 76 °F
Low Temp: 53 °F
Mean Temp: 65 °F
Precipitation: 2.85"
Humidity: 74%
Dew Point: 56 °F
Wind: 12 mph
Pressure: 29.91 "Hg
Visibility: 9 mi
August Climate & Weather Averages in Swan River
High Temp: 75 °F
Low Temp: 50 °F
Mean Temp: 62 °F
Precipitation: 2.20"
Humidity: 75%
Dew Point: 53 °F
Wind: 11 mph
Pressure: 29.93 "Hg
Visibility: 9 mi
September Climate & Weather Averages in Swan River
High Temp: 65 °F
Low Temp: 41 °F
Mean Temp: 53 °F
Precipitation: 1.48"
Humidity: 72%
Dew Point: 43 °F
Wind: 13 mph
Pressure: 29.94 "Hg
Visibility: 9 mi
October Climate & Weather Averages in Swan River
High Temp: 48 °F
Low Temp: 30 °F
Mean Temp: 39 °F
Precipitation: 1.21"
Humidity: 74%
Dew Point: 31 °F
Wind: 13 mph
Pressure: 29.98 "Hg
Visibility: 9 mi
November Climate & Weather Averages in Swan River
High Temp: 29 °F
Low Temp: 14 °F
Mean Temp: 21 °F
Precipitation: 0.61"
Humidity: 80%
Dew Point: 16 °F
Wind: 13 mph
Pressure: 30.02 "Hg
Visibility: 9 mi
December Climate & Weather Averages in Swan River
High Temp: 15 °F
Low Temp: -1 °F
Mean Temp: 7 °F
Precipitation: 0.63"
Humidity: 79%
Dew Point: 1 °F
Wind: 14 mph
Pressure: 30.07 "Hg
Visibility: 8 mi