Annual Weather Averages Near Chelmsford
Averages are for Stansted Airport, which is 15 miles from Chelmsford.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Chelmsford
High Temp: 72 °F
Low Temp: 35 °F
Mean Temp: 50 °F
Precipitation: 1.63"
Humidity: 81%
Dew Point: 44 °F
Wind: 18 mph
Pressure: 29.98 "Hg
Visibility: 6 mi
January Climate & Weather Averages in Chelmsford
High Temp: 45 °F
Low Temp: 35 °F
Mean Temp: 40 °F
Precipitation: 1.73"
Humidity: 89%
Dew Point: 37 °F
Wind: 20 mph
Pressure: 29.98 "Hg
Visibility: 5 mi
February Climate & Weather Averages in Chelmsford
High Temp: 46 °F
Low Temp: 35 °F
Mean Temp: 40 °F
Precipitation: 1.47"
Humidity: 85%
Dew Point: 36 °F
Wind: 20 mph
Pressure: 29.99 "Hg
Visibility: 6 mi
March Climate & Weather Averages in Chelmsford
High Temp: 50 °F
Low Temp: 37 °F
Mean Temp: 44 °F
Precipitation: 1.20"
Humidity: 81%
Dew Point: 37 °F
Wind: 19 mph
Pressure: 30.00 "Hg
Visibility: 6 mi
April Climate & Weather Averages in Chelmsford
High Temp: 56 °F
Low Temp: 40 °F
Mean Temp: 48 °F
Precipitation: 1.20"
Humidity: 76%
Dew Point: 40 °F
Wind: 17 mph
Pressure: 29.97 "Hg
Visibility: 6 mi
May Climate & Weather Averages in Chelmsford
High Temp: 62 °F
Low Temp: 45 °F
Mean Temp: 53 °F
Precipitation: 1.29"
Humidity: 76%
Dew Point: 45 °F
Wind: 17 mph
Pressure: 29.99 "Hg
Visibility: 6 mi
June Climate & Weather Averages in Chelmsford
High Temp: 67 °F
Low Temp: 50 °F
Mean Temp: 59 °F
Precipitation: 1.29"
Humidity: 76%
Dew Point: 51 °F
Wind: 16 mph
Pressure: 30.02 "Hg
Visibility: 6 mi
July Climate & Weather Averages in Chelmsford
High Temp: 72 °F
Low Temp: 54 °F
Mean Temp: 63 °F
Precipitation: 1.60"
Humidity: 74%
Dew Point: 54 °F
Wind: 15 mph
Pressure: 29.98 "Hg
Visibility: 7 mi
August Climate & Weather Averages in Chelmsford
High Temp: 71 °F
Low Temp: 54 °F
Mean Temp: 62 °F
Precipitation: 1.84"
Humidity: 75%
Dew Point: 54 °F
Wind: 16 mph
Pressure: 29.98 "Hg
Visibility: 7 mi
September Climate & Weather Averages in Chelmsford
High Temp: 66 °F
Low Temp: 50 °F
Mean Temp: 58 °F
Precipitation: 1.80"
Humidity: 80%
Dew Point: 51 °F
Wind: 16 mph
Pressure: 30.01 "Hg
Visibility: 6 mi
October Climate & Weather Averages in Chelmsford
High Temp: 58 °F
Low Temp: 45 °F
Mean Temp: 51 °F
Precipitation: 2.23"
Humidity: 85%
Dew Point: 47 °F
Wind: 18 mph
Pressure: 29.94 "Hg
Visibility: 6 mi
November Climate & Weather Averages in Chelmsford
High Temp: 50 °F
Low Temp: 39 °F
Mean Temp: 45 °F
Precipitation: 1.83"
Humidity: 89%
Dew Point: 42 °F
Wind: 18 mph
Pressure: 29.91 "Hg
Visibility: 5 mi
December Climate & Weather Averages in Chelmsford
High Temp: 45 °F
Low Temp: 36 °F
Mean Temp: 40 °F
Precipitation: 2.06"
Humidity: 90%
Dew Point: 38 °F
Wind: 19 mph
Pressure: 29.95 "Hg
Visibility: 5 mi