Annual Weather Averages Near Lancaster
Averages are for Fairfield County Airport, which is 4 miles from Lancaster.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Lancaster
High Temp: 85 °F
Low Temp: 21 °F
Mean Temp: 52 °F
Precipitation: 3.40"
Humidity: 72%
Dew Point: 43 °F
Wind: 10 mph
Pressure: 30.06 "Hg
Visibility: 8 mi
January Climate & Weather Averages in Lancaster
High Temp: 38 °F
Low Temp: 21 °F
Mean Temp: 29 °F
Precipitation: 2.78"
Humidity: 76%
Dew Point: 22 °F
Wind: 13 mph
Pressure: 30.13 "Hg
Visibility: 8 mi
February Climate & Weather Averages in Lancaster
High Temp: 41 °F
Low Temp: 23 °F
Mean Temp: 32 °F
Precipitation: 2.55"
Humidity: 73%
Dew Point: 24 °F
Wind: 13 mph
Pressure: 30.11 "Hg
Visibility: 8 mi
March Climate & Weather Averages in Lancaster
High Temp: 52 °F
Low Temp: 30 °F
Mean Temp: 41 °F
Precipitation: 3.52"
Humidity: 68%
Dew Point: 31 °F
Wind: 13 mph
Pressure: 30.09 "Hg
Visibility: 8 mi
April Climate & Weather Averages in Lancaster
High Temp: 65 °F
Low Temp: 39 °F
Mean Temp: 52 °F
Precipitation: 3.95"
Humidity: 64%
Dew Point: 40 °F
Wind: 13 mph
Pressure: 30.00 "Hg
Visibility: 9 mi
May Climate & Weather Averages in Lancaster
High Temp: 74 °F
Low Temp: 50 °F
Mean Temp: 62 °F
Precipitation: 4.15"
Humidity: 69%
Dew Point: 52 °F
Wind: 10 mph
Pressure: 30.00 "Hg
Visibility: 8 mi
June Climate & Weather Averages in Lancaster
High Temp: 82 °F
Low Temp: 59 °F
Mean Temp: 71 °F
Precipitation: 4.44"
Humidity: 71%
Dew Point: 61 °F
Wind: 8 mph
Pressure: 29.97 "Hg
Visibility: 8 mi
July Climate & Weather Averages in Lancaster
High Temp: 85 °F
Low Temp: 62 °F
Mean Temp: 73 °F
Precipitation: 4.19"
Humidity: 74%
Dew Point: 65 °F
Wind: 6 mph
Pressure: 30.00 "Hg
Visibility: 8 mi
August Climate & Weather Averages in Lancaster
High Temp: 84 °F
Low Temp: 60 °F
Mean Temp: 72 °F
Precipitation: 3.20"
Humidity: 75%
Dew Point: 63 °F
Wind: 6 mph
Pressure: 30.03 "Hg
Visibility: 7 mi
September Climate & Weather Averages in Lancaster
High Temp: 78 °F
Low Temp: 52 °F
Mean Temp: 65 °F
Precipitation: 3.26"
Humidity: 73%
Dew Point: 56 °F
Wind: 6 mph
Pressure: 30.06 "Hg
Visibility: 8 mi
October Climate & Weather Averages in Lancaster
High Temp: 66 °F
Low Temp: 41 °F
Mean Temp: 54 °F
Precipitation: 3.00"
Humidity: 72%
Dew Point: 44 °F
Wind: 9 mph
Pressure: 30.08 "Hg
Visibility: 8 mi
November Climate & Weather Averages in Lancaster
High Temp: 53 °F
Low Temp: 32 °F
Mean Temp: 42 °F
Precipitation: 2.83"
Humidity: 72%
Dew Point: 33 °F
Wind: 11 mph
Pressure: 30.13 "Hg
Visibility: 9 mi
December Climate & Weather Averages in Lancaster
High Temp: 42 °F
Low Temp: 26 °F
Mean Temp: 34 °F
Precipitation: 2.90"
Humidity: 76%
Dew Point: 27 °F
Wind: 12 mph
Pressure: 30.13 "Hg
Visibility: 8 mi