Annual Weather Averages in West Yellowstone Airport
West Yellowstone Airport is 31 miles from Yellowstone National Park, so the actual climate in Yellowstone National Park can vary a bit.
Based on weather reports collected during 2005–2015.
All Year Climate & Weather Averages in Yellowstone National Park
High Temp: 79 °F
Low Temp: 9 °F
Mean Temp: 40 °F
Precipitation: 0.63"
Humidity: 65%
Dew Point: 27 °F
Wind: 6 mph
Pressure: 30.06 "Hg
Visibility: 11 mi
January Climate & Weather Averages in Yellowstone National Park
High Temp: 27 °F
Low Temp: 9 °F
Mean Temp: 18 °F
Precipitation: 0.68"
Humidity: 82%
Dew Point: 13 °F
Wind: 5 mph
Pressure: 30.32 "Hg
Visibility: 8 mi
February Climate & Weather Averages in Yellowstone National Park
High Temp: 32 °F
Low Temp: 12 °F
Mean Temp: 22 °F
Precipitation: 0.45"
Humidity: 78%
Dew Point: 16 °F
Wind: 6 mph
Pressure: 30.16 "Hg
Visibility: 9 mi
March Climate & Weather Averages in Yellowstone National Park
High Temp: 44 °F
Low Temp: 22 °F
Mean Temp: 33 °F
Precipitation: 0.77"
Humidity: 69%
Dew Point: 22 °F
Wind: 8 mph
Pressure: 30.06 "Hg
Visibility: 9 mi
April Climate & Weather Averages in Yellowstone National Park
High Temp: 54 °F
Low Temp: 28 °F
Mean Temp: 41 °F
Precipitation: 1.15"
Humidity: 58%
Dew Point: 26 °F
Wind: 8 mph
Pressure: 29.95 "Hg
Visibility: 10 mi
May Climate & Weather Averages in Yellowstone National Park
High Temp: 63 °F
Low Temp: 35 °F
Mean Temp: 49 °F
Precipitation: 1.69"
Humidity: 57%
Dew Point: 32 °F
Wind: 7 mph
Pressure: 29.94 "Hg
Visibility: 10 mi
June Climate & Weather Averages in Yellowstone National Park
High Temp: 70 °F
Low Temp: 40 °F
Mean Temp: 55 °F
Precipitation: 0.69"
Humidity: 55%
Dew Point: 38 °F
Wind: 7 mph
Pressure: 29.92 "Hg
Visibility: 13 mi
July Climate & Weather Averages in Yellowstone National Park
High Temp: 79 °F
Low Temp: 45 °F
Mean Temp: 62 °F
Precipitation: 0.07"
Humidity: 53%
Dew Point: 43 °F
Wind: 6 mph
Pressure: 29.95 "Hg
Visibility: 14 mi
August Climate & Weather Averages in Yellowstone National Park
High Temp: 77 °F
Low Temp: 41 °F
Mean Temp: 59 °F
Precipitation: 0.15"
Humidity: 54%
Dew Point: 41 °F
Wind: 6 mph
Pressure: 29.96 "Hg
Visibility: 13 mi
September Climate & Weather Averages in Yellowstone National Park
High Temp: 68 °F
Low Temp: 34 °F
Mean Temp: 51 °F
Precipitation: 0.14"
Humidity: 50%
Dew Point: 32 °F
Wind: 6 mph
Pressure: 30.01 "Hg
Visibility: 13 mi
October Climate & Weather Averages in Yellowstone National Park
High Temp: 54 °F
Low Temp: 28 °F
Mean Temp: 41 °F
Precipitation: 0.63"
Humidity: 66%
Dew Point: 29 °F
Wind: 6 mph
Pressure: 30.08 "Hg
Visibility: 10 mi
November Climate & Weather Averages in Yellowstone National Park
High Temp: 39 °F
Low Temp: 20 °F
Mean Temp: 29 °F
Precipitation: 0.58"
Humidity: 73%
Dew Point: 21 °F
Wind: 7 mph
Pressure: 30.17 "Hg
Visibility: 9 mi
December Climate & Weather Averages in Yellowstone National Park
High Temp: 28 °F
Low Temp: 10 °F
Mean Temp: 19 °F
Precipitation: 0.60"
Humidity: 80%
Dew Point: 14 °F
Wind: 5 mph
Pressure: 30.21 "Hg
Visibility: 8 mi