Annual Weather Averages in Philadelphia International Airport
Philadelphia International Airport is 20 miles from Borough of West Chester, so the actual climate in Borough of West Chester can vary a bit.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Borough of West Chester
High Temp: 88 °F
Low Temp: 27 °F
Mean Temp: 57 °F
Precipitation: 3.70"
Humidity: 63%
Dew Point: 44 °F
Wind: 15 mph
Pressure: 30.05 "Hg
Visibility: 9 mi
January Climate & Weather Averages in Borough of West Chester
High Temp: 41 °F
Low Temp: 27 °F
Mean Temp: 34 °F
Precipitation: 3.03"
Humidity: 63%
Dew Point: 22 °F
Wind: 16 mph
Pressure: 30.10 "Hg
Visibility: 9 mi
February Climate & Weather Averages in Borough of West Chester
High Temp: 44 °F
Low Temp: 28 °F
Mean Temp: 36 °F
Precipitation: 2.90"
Humidity: 60%
Dew Point: 23 °F
Wind: 17 mph
Pressure: 30.09 "Hg
Visibility: 9 mi
March Climate & Weather Averages in Borough of West Chester
High Temp: 53 °F
Low Temp: 35 °F
Mean Temp: 44 °F
Precipitation: 3.98"
Humidity: 58%
Dew Point: 29 °F
Wind: 17 mph
Pressure: 30.08 "Hg
Visibility: 9 mi
April Climate & Weather Averages in Borough of West Chester
High Temp: 64 °F
Low Temp: 45 °F
Mean Temp: 55 °F
Precipitation: 3.48"
Humidity: 57%
Dew Point: 39 °F
Wind: 17 mph
Pressure: 30.00 "Hg
Visibility: 9 mi
May Climate & Weather Averages in Borough of West Chester
High Temp: 74 °F
Low Temp: 55 °F
Mean Temp: 64 °F
Precipitation: 3.41"
Humidity: 62%
Dew Point: 50 °F
Wind: 14 mph
Pressure: 30.01 "Hg
Visibility: 9 mi
June Climate & Weather Averages in Borough of West Chester
High Temp: 83 °F
Low Temp: 65 °F
Mean Temp: 74 °F
Precipitation: 4.04"
Humidity: 64%
Dew Point: 61 °F
Wind: 14 mph
Pressure: 29.97 "Hg
Visibility: 9 mi
July Climate & Weather Averages in Borough of West Chester
High Temp: 88 °F
Low Temp: 70 °F
Mean Temp: 79 °F
Precipitation: 4.47"
Humidity: 64%
Dew Point: 65 °F
Wind: 13 mph
Pressure: 29.97 "Hg
Visibility: 9 mi
August Climate & Weather Averages in Borough of West Chester
High Temp: 86 °F
Low Temp: 69 °F
Mean Temp: 77 °F
Precipitation: 4.38"
Humidity: 66%
Dew Point: 64 °F
Wind: 12 mph
Pressure: 30.01 "Hg
Visibility: 9 mi
September Climate & Weather Averages in Borough of West Chester
High Temp: 79 °F
Low Temp: 62 °F
Mean Temp: 70 °F
Precipitation: 4.44"
Humidity: 67%
Dew Point: 59 °F
Wind: 13 mph
Pressure: 30.06 "Hg
Visibility: 9 mi
October Climate & Weather Averages in Borough of West Chester
High Temp: 67 °F
Low Temp: 50 °F
Mean Temp: 59 °F
Precipitation: 3.56"
Humidity: 67%
Dew Point: 47 °F
Wind: 14 mph
Pressure: 30.08 "Hg
Visibility: 9 mi
November Climate & Weather Averages in Borough of West Chester
High Temp: 56 °F
Low Temp: 39 °F
Mean Temp: 48 °F
Precipitation: 2.88"
Humidity: 64%
Dew Point: 35 °F
Wind: 15 mph
Pressure: 30.13 "Hg
Visibility: 9 mi
December Climate & Weather Averages in Borough of West Chester
High Temp: 46 °F
Low Temp: 32 °F
Mean Temp: 39 °F
Precipitation: 3.85"
Humidity: 65%
Dew Point: 28 °F
Wind: 15 mph
Pressure: 30.12 "Hg
Visibility: 9 mi