Annual Weather Averages Near Greenwich
Averages are for Manassas Municipal, which is 7 miles from Greenwich.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Greenwich
High Temp: 88 °F
Low Temp: 25 °F
Mean Temp: 56 °F
Precipitation: 2.53"
Humidity: 70%
Dew Point: 44 °F
Wind: 10 mph
Pressure: 30.06 "Hg
Visibility: 9 mi
January Climate & Weather Averages in Greenwich
High Temp: 43 °F
Low Temp: 25 °F
Mean Temp: 34 °F
Precipitation: 1.48"
Humidity: 67%
Dew Point: 23 °F
Wind: 11 mph
Pressure: 30.11 "Hg
Visibility: 9 mi
February Climate & Weather Averages in Greenwich
High Temp: 46 °F
Low Temp: 26 °F
Mean Temp: 36 °F
Precipitation: 1.75"
Humidity: 65%
Dew Point: 24 °F
Wind: 11 mph
Pressure: 30.10 "Hg
Visibility: 9 mi
March Climate & Weather Averages in Greenwich
High Temp: 55 °F
Low Temp: 33 °F
Mean Temp: 44 °F
Precipitation: 2.19"
Humidity: 63%
Dew Point: 30 °F
Wind: 13 mph
Pressure: 30.07 "Hg
Visibility: 9 mi
April Climate & Weather Averages in Greenwich
High Temp: 67 °F
Low Temp: 43 °F
Mean Temp: 55 °F
Precipitation: 2.40"
Humidity: 62%
Dew Point: 40 °F
Wind: 12 mph
Pressure: 30.00 "Hg
Visibility: 9 mi
May Climate & Weather Averages in Greenwich
High Temp: 75 °F
Low Temp: 53 °F
Mean Temp: 64 °F
Precipitation: 3.35"
Humidity: 71%
Dew Point: 52 °F
Wind: 10 mph
Pressure: 30.01 "Hg
Visibility: 9 mi
June Climate & Weather Averages in Greenwich
High Temp: 84 °F
Low Temp: 63 °F
Mean Temp: 73 °F
Precipitation: 3.11"
Humidity: 73%
Dew Point: 62 °F
Wind: 9 mph
Pressure: 29.98 "Hg
Visibility: 9 mi
July Climate & Weather Averages in Greenwich
High Temp: 88 °F
Low Temp: 67 °F
Mean Temp: 78 °F
Precipitation: 2.94"
Humidity: 74%
Dew Point: 66 °F
Wind: 8 mph
Pressure: 29.99 "Hg
Visibility: 9 mi
August Climate & Weather Averages in Greenwich
High Temp: 86 °F
Low Temp: 66 °F
Mean Temp: 76 °F
Precipitation: 2.93"
Humidity: 75%
Dew Point: 65 °F
Wind: 7 mph
Pressure: 30.03 "Hg
Visibility: 9 mi
September Climate & Weather Averages in Greenwich
High Temp: 79 °F
Low Temp: 58 °F
Mean Temp: 69 °F
Precipitation: 3.31"
Humidity: 77%
Dew Point: 58 °F
Wind: 8 mph
Pressure: 30.07 "Hg
Visibility: 9 mi
October Climate & Weather Averages in Greenwich
High Temp: 68 °F
Low Temp: 45 °F
Mean Temp: 57 °F
Precipitation: 2.88"
Humidity: 76%
Dew Point: 47 °F
Wind: 8 mph
Pressure: 30.08 "Hg
Visibility: 9 mi
November Climate & Weather Averages in Greenwich
High Temp: 57 °F
Low Temp: 34 °F
Mean Temp: 46 °F
Precipitation: 1.84"
Humidity: 71%
Dew Point: 34 °F
Wind: 9 mph
Pressure: 30.13 "Hg
Visibility: 9 mi
December Climate & Weather Averages in Greenwich
High Temp: 47 °F
Low Temp: 28 °F
Mean Temp: 38 °F
Precipitation: 2.18"
Humidity: 71%
Dew Point: 27 °F
Wind: 9 mph
Pressure: 30.12 "Hg
Visibility: 9 mi