Currently: 41 °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 1985–2015.
All Year Climate & Weather Averages in Casper
High Temp: 89 °F
Low Temp: 16 °F
Mean Temp: 46 °F
Precipitation: 0.47"
Humidity: 54%
Dew Point: 28 °F
Wind: 10 mph
Pressure: 29.99 "Hg
Visibility: 15 mi
January Climate & Weather Averages in Casper
High Temp: 36 °F
Low Temp: 16 °F
Mean Temp: 26 °F
Precipitation: 0.22"
Humidity: 63%
Dew Point: 15 °F
Wind: 14 mph
Pressure: 30.10 "Hg
Visibility: 15 mi
February Climate & Weather Averages in Casper
High Temp: 39 °F
Low Temp: 17 °F
Mean Temp: 28 °F
Precipitation: 0.31"
Humidity: 64%
Dew Point: 16 °F
Wind: 12 mph
Pressure: 30.07 "Hg
Visibility: 14 mi
March Climate & Weather Averages in Casper
High Temp: 49 °F
Low Temp: 24 °F
Mean Temp: 36 °F
Precipitation: 0.34"
Humidity: 58%
Dew Point: 21 °F
Wind: 11 mph
Pressure: 30.00 "Hg
Visibility: 15 mi
April Climate & Weather Averages in Casper
High Temp: 58 °F
Low Temp: 29 °F
Mean Temp: 43 °F
Precipitation: 0.71"
Humidity: 55%
Dew Point: 26 °F
Wind: 10 mph
Pressure: 29.94 "Hg
Visibility: 15 mi
May Climate & Weather Averages in Casper
High Temp: 68 °F
Low Temp: 38 °F
Mean Temp: 53 °F
Precipitation: 1.08"
Humidity: 54%
Dew Point: 35 °F
Wind: 8 mph
Pressure: 29.90 "Hg
Visibility: 16 mi
June Climate & Weather Averages in Casper
High Temp: 81 °F
Low Temp: 46 °F
Mean Temp: 63 °F
Precipitation: 0.65"
Humidity: 47%
Dew Point: 41 °F
Wind: 8 mph
Pressure: 29.87 "Hg
Visibility: 17 mi
July Climate & Weather Averages in Casper
High Temp: 89 °F
Low Temp: 54 °F
Mean Temp: 71 °F
Precipitation: 0.57"
Humidity: 41%
Dew Point: 44 °F
Wind: 7 mph
Pressure: 29.91 "Hg
Visibility: 18 mi
August Climate & Weather Averages in Casper
High Temp: 87 °F
Low Temp: 52 °F
Mean Temp: 70 °F
Precipitation: 0.30"
Humidity: 40%
Dew Point: 42 °F
Wind: 7 mph
Pressure: 29.93 "Hg
Visibility: 17 mi
September Climate & Weather Averages in Casper
High Temp: 76 °F
Low Temp: 43 °F
Mean Temp: 60 °F
Precipitation: 0.40"
Humidity: 44%
Dew Point: 35 °F
Wind: 8 mph
Pressure: 29.98 "Hg
Visibility: 16 mi
October Climate & Weather Averages in Casper
High Temp: 61 °F
Low Temp: 32 °F
Mean Temp: 46 °F
Precipitation: 0.46"
Humidity: 53%
Dew Point: 28 °F
Wind: 9 mph
Pressure: 30.04 "Hg
Visibility: 15 mi
November Climate & Weather Averages in Casper
High Temp: 46 °F
Low Temp: 23 °F
Mean Temp: 35 °F
Precipitation: 0.28"
Humidity: 58%
Dew Point: 20 °F
Wind: 12 mph
Pressure: 30.07 "Hg
Visibility: 14 mi
December Climate & Weather Averages in Casper
High Temp: 36 °F
Low Temp: 16 °F
Mean Temp: 26 °F
Precipitation: 0.26"
Humidity: 64%
Dew Point: 15 °F
Wind: 14 mph
Pressure: 30.10 "Hg
Visibility: 14 mi