Annual Weather Averages in Lafayette Regional Airport
Lafayette Regional Airport is 29 miles from Washington, so the actual climate in Washington can vary a bit.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Washington
High Temp: 92 °F
Low Temp: 43 °F
Mean Temp: 69 °F
Precipitation: 5.23"
Humidity: 73%
Dew Point: 60 °F
Wind: 11 mph
Pressure: 30.05 "Hg
Visibility: 9 mi
January Climate & Weather Averages in Washington
High Temp: 63 °F
Low Temp: 43 °F
Mean Temp: 53 °F
Precipitation: 5.65"
Humidity: 73%
Dew Point: 44 °F
Wind: 13 mph
Pressure: 30.16 "Hg
Visibility: 8 mi
February Climate & Weather Averages in Washington
High Temp: 66 °F
Low Temp: 47 °F
Mean Temp: 57 °F
Precipitation: 4.09"
Humidity: 74%
Dew Point: 47 °F
Wind: 14 mph
Pressure: 30.11 "Hg
Visibility: 8 mi
March Climate & Weather Averages in Washington
High Temp: 73 °F
Low Temp: 53 °F
Mean Temp: 63 °F
Precipitation: 3.75"
Humidity: 72%
Dew Point: 53 °F
Wind: 13 mph
Pressure: 30.06 "Hg
Visibility: 9 mi
April Climate & Weather Averages in Washington
High Temp: 79 °F
Low Temp: 59 °F
Mean Temp: 69 °F
Precipitation: 4.82"
Humidity: 71%
Dew Point: 59 °F
Wind: 13 mph
Pressure: 30.00 "Hg
Visibility: 9 mi
May Climate & Weather Averages in Washington
High Temp: 86 °F
Low Temp: 67 °F
Mean Temp: 76 °F
Precipitation: 5.51"
Humidity: 72%
Dew Point: 66 °F
Wind: 11 mph
Pressure: 29.98 "Hg
Visibility: 9 mi
June Climate & Weather Averages in Washington
High Temp: 90 °F
Low Temp: 73 °F
Mean Temp: 82 °F
Precipitation: 7.04"
Humidity: 75%
Dew Point: 72 °F
Wind: 9 mph
Pressure: 29.97 "Hg
Visibility: 9 mi
July Climate & Weather Averages in Washington
High Temp: 92 °F
Low Temp: 75 °F
Mean Temp: 83 °F
Precipitation: 6.47"
Humidity: 76%
Dew Point: 74 °F
Wind: 8 mph
Pressure: 30.02 "Hg
Visibility: 9 mi
August Climate & Weather Averages in Washington
High Temp: 92 °F
Low Temp: 75 °F
Mean Temp: 83 °F
Precipitation: 6.30"
Humidity: 74%
Dew Point: 74 °F
Wind: 7 mph
Pressure: 29.99 "Hg
Visibility: 9 mi
September Climate & Weather Averages in Washington
High Temp: 89 °F
Low Temp: 70 °F
Mean Temp: 80 °F
Precipitation: 5.20"
Humidity: 74%
Dew Point: 70 °F
Wind: 8 mph
Pressure: 29.98 "Hg
Visibility: 9 mi
October Climate & Weather Averages in Washington
High Temp: 82 °F
Low Temp: 60 °F
Mean Temp: 71 °F
Precipitation: 4.59"
Humidity: 73%
Dew Point: 61 °F
Wind: 9 mph
Pressure: 30.03 "Hg
Visibility: 9 mi
November Climate & Weather Averages in Washington
High Temp: 72 °F
Low Temp: 50 °F
Mean Temp: 61 °F
Precipitation: 4.39"
Humidity: 73%
Dew Point: 52 °F
Wind: 11 mph
Pressure: 30.13 "Hg
Visibility: 8 mi
December Climate & Weather Averages in Washington
High Temp: 65 °F
Low Temp: 45 °F
Mean Temp: 55 °F
Precipitation: 5.01"
Humidity: 75%
Dew Point: 46 °F
Wind: 12 mph
Pressure: 30.14 "Hg
Visibility: 8 mi