Currently: 69 °F. Clear. (Weather station: Mason City Municipal Airport, USA). See more current weatherAnnual Weather Averages Near Mason City
Averages are for Mason City Municipal Airport, which is 7 miles from Mason City.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Mason City
High Temp: 83 °F
Low Temp: 8 °F
Mean Temp: 46 °F
Precipitation: 2.92"
Humidity: 75%
Dew Point: 38 °F
Wind: 19 mph
Pressure: 30.03 "Hg
Visibility: 9 mi
January Climate & Weather Averages in Mason City
High Temp: 25 °F
Low Temp: 8 °F
Mean Temp: 17 °F
Precipitation: 0.87"
Humidity: 82%
Dew Point: 12 °F
Wind: 21 mph
Pressure: 30.13 "Hg
Visibility: 8 mi
February Climate & Weather Averages in Mason City
High Temp: 29 °F
Low Temp: 12 °F
Mean Temp: 20 °F
Precipitation: 1.13"
Humidity: 81%
Dew Point: 16 °F
Wind: 21 mph
Pressure: 30.12 "Hg
Visibility: 8 mi
March Climate & Weather Averages in Mason City
High Temp: 42 °F
Low Temp: 24 °F
Mean Temp: 33 °F
Precipitation: 2.25"
Humidity: 77%
Dew Point: 26 °F
Wind: 21 mph
Pressure: 30.09 "Hg
Visibility: 8 mi
April Climate & Weather Averages in Mason City
High Temp: 58 °F
Low Temp: 35 °F
Mean Temp: 46 °F
Precipitation: 3.90"
Humidity: 67%
Dew Point: 35 °F
Wind: 23 mph
Pressure: 29.97 "Hg
Visibility: 9 mi
May Climate & Weather Averages in Mason City
High Temp: 70 °F
Low Temp: 47 °F
Mean Temp: 58 °F
Precipitation: 4.98"
Humidity: 67%
Dew Point: 46 °F
Wind: 20 mph
Pressure: 29.96 "Hg
Visibility: 10 mi
June Climate & Weather Averages in Mason City
High Temp: 80 °F
Low Temp: 58 °F
Mean Temp: 69 °F
Precipitation: 5.43"
Humidity: 69%
Dew Point: 58 °F
Wind: 17 mph
Pressure: 29.91 "Hg
Visibility: 10 mi
July Climate & Weather Averages in Mason City
High Temp: 83 °F
Low Temp: 61 °F
Mean Temp: 72 °F
Precipitation: 4.32"
Humidity: 76%
Dew Point: 63 °F
Wind: 14 mph
Pressure: 29.97 "Hg
Visibility: 9 mi
August Climate & Weather Averages in Mason City
High Temp: 80 °F
Low Temp: 58 °F
Mean Temp: 69 °F
Precipitation: 3.66"
Humidity: 78%
Dew Point: 62 °F
Wind: 13 mph
Pressure: 30.00 "Hg
Visibility: 9 mi
September Climate & Weather Averages in Mason City
High Temp: 75 °F
Low Temp: 49 °F
Mean Temp: 62 °F
Precipitation: 3.25"
Humidity: 73%
Dew Point: 52 °F
Wind: 15 mph
Pressure: 30.02 "Hg
Visibility: 9 mi
October Climate & Weather Averages in Mason City
High Temp: 60 °F
Low Temp: 37 °F
Mean Temp: 49 °F
Precipitation: 2.46"
Humidity: 71%
Dew Point: 39 °F
Wind: 18 mph
Pressure: 30.04 "Hg
Visibility: 10 mi
November Climate & Weather Averages in Mason City
High Temp: 44 °F
Low Temp: 25 °F
Mean Temp: 35 °F
Precipitation: 1.63"
Humidity: 76%
Dew Point: 27 °F
Wind: 20 mph
Pressure: 30.08 "Hg
Visibility: 9 mi
December Climate & Weather Averages in Mason City
High Temp: 30 °F
Low Temp: 14 °F
Mean Temp: 22 °F
Precipitation: 1.12"
Humidity: 82%
Dew Point: 18 °F
Wind: 20 mph
Pressure: 30.09 "Hg
Visibility: 8 mi