Currently: 42 °F. Clear. (Weather station: Natrona County International Airport, USA). See more current weatherAnnual Weather Averages Near Casper
Averages are for Natrona County International Airport, which is 8 miles from Casper.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Casper
High Temp: 90 °F
Low Temp: 16 °F
Mean Temp: 46 °F
Precipitation: 1.07"
Humidity: 54%
Dew Point: 28 °F
Wind: 18 mph
Pressure: 29.99 "Hg
Visibility: 11 mi
January Climate & Weather Averages in Casper
High Temp: 36 °F
Low Temp: 16 °F
Mean Temp: 26 °F
Precipitation: 0.52"
Humidity: 64%
Dew Point: 15 °F
Wind: 25 mph
Pressure: 30.10 "Hg
Visibility: 11 mi
February Climate & Weather Averages in Casper
High Temp: 38 °F
Low Temp: 16 °F
Mean Temp: 27 °F
Precipitation: 0.60"
Humidity: 64%
Dew Point: 16 °F
Wind: 22 mph
Pressure: 30.06 "Hg
Visibility: 11 mi
March Climate & Weather Averages in Casper
High Temp: 49 °F
Low Temp: 23 °F
Mean Temp: 36 °F
Precipitation: 0.94"
Humidity: 58%
Dew Point: 21 °F
Wind: 20 mph
Pressure: 30.01 "Hg
Visibility: 11 mi
April Climate & Weather Averages in Casper
High Temp: 57 °F
Low Temp: 29 °F
Mean Temp: 43 °F
Precipitation: 1.42"
Humidity: 56%
Dew Point: 26 °F
Wind: 18 mph
Pressure: 29.95 "Hg
Visibility: 10 mi
May Climate & Weather Averages in Casper
High Temp: 67 °F
Low Temp: 37 °F
Mean Temp: 52 °F
Precipitation: 2.12"
Humidity: 56%
Dew Point: 36 °F
Wind: 15 mph
Pressure: 29.91 "Hg
Visibility: 11 mi
June Climate & Weather Averages in Casper
High Temp: 80 °F
Low Temp: 46 °F
Mean Temp: 63 °F
Precipitation: 1.39"
Humidity: 47%
Dew Point: 41 °F
Wind: 14 mph
Pressure: 29.87 "Hg
Visibility: 11 mi
July Climate & Weather Averages in Casper
High Temp: 90 °F
Low Temp: 53 °F
Mean Temp: 71 °F
Precipitation: 1.42"
Humidity: 41%
Dew Point: 45 °F
Wind: 11 mph
Pressure: 29.91 "Hg
Visibility: 12 mi
August Climate & Weather Averages in Casper
High Temp: 87 °F
Low Temp: 52 °F
Mean Temp: 69 °F
Precipitation: 0.88"
Humidity: 39%
Dew Point: 42 °F
Wind: 12 mph
Pressure: 29.93 "Hg
Visibility: 11 mi
September Climate & Weather Averages in Casper
High Temp: 77 °F
Low Temp: 43 °F
Mean Temp: 60 °F
Precipitation: 1.00"
Humidity: 44%
Dew Point: 35 °F
Wind: 14 mph
Pressure: 29.97 "Hg
Visibility: 11 mi
October Climate & Weather Averages in Casper
High Temp: 61 °F
Low Temp: 32 °F
Mean Temp: 46 °F
Precipitation: 1.29"
Humidity: 54%
Dew Point: 28 °F
Wind: 17 mph
Pressure: 30.03 "Hg
Visibility: 11 mi
November Climate & Weather Averages in Casper
High Temp: 47 °F
Low Temp: 23 °F
Mean Temp: 35 °F
Precipitation: 0.64"
Humidity: 57%
Dew Point: 20 °F
Wind: 22 mph
Pressure: 30.07 "Hg
Visibility: 10 mi
December Climate & Weather Averages in Casper
High Temp: 36 °F
Low Temp: 16 °F
Mean Temp: 26 °F
Precipitation: 0.65"
Humidity: 64%
Dew Point: 15 °F
Wind: 26 mph
Pressure: 30.09 "Hg
Visibility: 10 mi