Annual Weather Averages in Ames
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Ames
High Temp: 84 °F
Low Temp: 12 °F
Mean Temp: 49 °F
Precipitation: 2.97"
Humidity: 73%
Dew Point: 40 °F
Wind: 15 mph
Pressure: 30.03 "Hg
Visibility: 9 mi
January Climate & Weather Averages in Ames
High Temp: 29 °F
Low Temp: 12 °F
Mean Temp: 20 °F
Precipitation: 0.78"
Humidity: 79%
Dew Point: 16 °F
Wind: 16 mph
Pressure: 30.14 "Hg
Visibility: 8 mi
February Climate & Weather Averages in Ames
High Temp: 33 °F
Low Temp: 15 °F
Mean Temp: 24 °F
Precipitation: 0.89"
Humidity: 77%
Dew Point: 19 °F
Wind: 16 mph
Pressure: 30.12 "Hg
Visibility: 8 mi
March Climate & Weather Averages in Ames
High Temp: 47 °F
Low Temp: 27 °F
Mean Temp: 37 °F
Precipitation: 1.97"
Humidity: 71%
Dew Point: 28 °F
Wind: 17 mph
Pressure: 30.09 "Hg
Visibility: 9 mi
April Climate & Weather Averages in Ames
High Temp: 61 °F
Low Temp: 38 °F
Mean Temp: 49 °F
Precipitation: 3.71"
Humidity: 64%
Dew Point: 37 °F
Wind: 18 mph
Pressure: 29.97 "Hg
Visibility: 9 mi
May Climate & Weather Averages in Ames
High Temp: 72 °F
Low Temp: 49 °F
Mean Temp: 61 °F
Precipitation: 5.02"
Humidity: 67%
Dew Point: 49 °F
Wind: 16 mph
Pressure: 29.95 "Hg
Visibility: 9 mi
June Climate & Weather Averages in Ames
High Temp: 82 °F
Low Temp: 60 °F
Mean Temp: 71 °F
Precipitation: 4.97"
Humidity: 70%
Dew Point: 60 °F
Wind: 13 mph
Pressure: 29.91 "Hg
Visibility: 9 mi
July Climate & Weather Averages in Ames
High Temp: 84 °F
Low Temp: 63 °F
Mean Temp: 74 °F
Precipitation: 4.54"
Humidity: 75%
Dew Point: 66 °F
Wind: 10 mph
Pressure: 29.96 "Hg
Visibility: 9 mi
August Climate & Weather Averages in Ames
High Temp: 82 °F
Low Temp: 60 °F
Mean Temp: 71 °F
Precipitation: 4.85"
Humidity: 77%
Dew Point: 64 °F
Wind: 10 mph
Pressure: 29.99 "Hg
Visibility: 9 mi
September Climate & Weather Averages in Ames
High Temp: 76 °F
Low Temp: 51 °F
Mean Temp: 64 °F
Precipitation: 3.28"
Humidity: 72%
Dew Point: 54 °F
Wind: 12 mph
Pressure: 30.02 "Hg
Visibility: 9 mi
October Climate & Weather Averages in Ames
High Temp: 63 °F
Low Temp: 39 °F
Mean Temp: 51 °F
Precipitation: 2.68"
Humidity: 68%
Dew Point: 41 °F
Wind: 14 mph
Pressure: 30.04 "Hg
Visibility: 9 mi
November Climate & Weather Averages in Ames
High Temp: 47 °F
Low Temp: 27 °F
Mean Temp: 37 °F
Precipitation: 1.84"
Humidity: 72%
Dew Point: 29 °F
Wind: 16 mph
Pressure: 30.09 "Hg
Visibility: 9 mi
December Climate & Weather Averages in Ames
High Temp: 34 °F
Low Temp: 17 °F
Mean Temp: 26 °F
Precipitation: 1.14"
Humidity: 79%
Dew Point: 20 °F
Wind: 15 mph
Pressure: 30.10 "Hg
Visibility: 8 mi