Annual Weather Averages Near Evanston
Averages are for Pal-Waukee Airport, which is 12 miles from Evanston.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Evanston
High Temp: 84 °F
Low Temp: 18 °F
Mean Temp: 50 °F
Precipitation: 2.72"
Humidity: 68%
Dew Point: 40 °F
Wind: 14 mph
Pressure: 30.05 "Hg
Visibility: 10 mi
January Climate & Weather Averages in Evanston
High Temp: 32 °F
Low Temp: 18 °F
Mean Temp: 25 °F
Precipitation: 1.59"
Humidity: 74%
Dew Point: 18 °F
Wind: 16 mph
Pressure: 30.12 "Hg
Visibility: 8 mi
February Climate & Weather Averages in Evanston
High Temp: 35 °F
Low Temp: 20 °F
Mean Temp: 28 °F
Precipitation: 1.48"
Humidity: 71%
Dew Point: 20 °F
Wind: 16 mph
Pressure: 30.11 "Hg
Visibility: 9 mi
March Climate & Weather Averages in Evanston
High Temp: 46 °F
Low Temp: 29 °F
Mean Temp: 37 °F
Precipitation: 1.86"
Humidity: 67%
Dew Point: 27 °F
Wind: 15 mph
Pressure: 30.10 "Hg
Visibility: 9 mi
April Climate & Weather Averages in Evanston
High Temp: 57 °F
Low Temp: 38 °F
Mean Temp: 47 °F
Precipitation: 3.14"
Humidity: 63%
Dew Point: 35 °F
Wind: 16 mph
Pressure: 30.00 "Hg
Visibility: 10 mi
May Climate & Weather Averages in Evanston
High Temp: 69 °F
Low Temp: 48 °F
Mean Temp: 58 °F
Precipitation: 3.97"
Humidity: 64%
Dew Point: 46 °F
Wind: 14 mph
Pressure: 29.99 "Hg
Visibility: 10 mi
June Climate & Weather Averages in Evanston
High Temp: 79 °F
Low Temp: 59 °F
Mean Temp: 69 °F
Precipitation: 4.07"
Humidity: 65%
Dew Point: 57 °F
Wind: 12 mph
Pressure: 29.95 "Hg
Visibility: 10 mi
July Climate & Weather Averages in Evanston
High Temp: 84 °F
Low Temp: 65 °F
Mean Temp: 74 °F
Precipitation: 3.23"
Humidity: 66%
Dew Point: 62 °F
Wind: 11 mph
Pressure: 29.98 "Hg
Visibility: 10 mi
August Climate & Weather Averages in Evanston
High Temp: 82 °F
Low Temp: 64 °F
Mean Temp: 73 °F
Precipitation: 3.52"
Humidity: 69%
Dew Point: 62 °F
Wind: 10 mph
Pressure: 30.01 "Hg
Visibility: 10 mi
September Climate & Weather Averages in Evanston
High Temp: 75 °F
Low Temp: 55 °F
Mean Temp: 65 °F
Precipitation: 2.85"
Humidity: 68%
Dew Point: 54 °F
Wind: 11 mph
Pressure: 30.05 "Hg
Visibility: 10 mi
October Climate & Weather Averages in Evanston
High Temp: 63 °F
Low Temp: 44 °F
Mean Temp: 53 °F
Precipitation: 3.10"
Humidity: 68%
Dew Point: 43 °F
Wind: 13 mph
Pressure: 30.06 "Hg
Visibility: 10 mi
November Climate & Weather Averages in Evanston
High Temp: 48 °F
Low Temp: 32 °F
Mean Temp: 41 °F
Precipitation: 2.08"
Humidity: 69%
Dew Point: 31 °F
Wind: 15 mph
Pressure: 30.10 "Hg
Visibility: 9 mi
December Climate & Weather Averages in Evanston
High Temp: 37 °F
Low Temp: 23 °F
Mean Temp: 30 °F
Precipitation: 1.81"
Humidity: 74%
Dew Point: 23 °F
Wind: 15 mph
Pressure: 30.10 "Hg
Visibility: 8 mi