Annual Weather Averages Near Johnstown
Averages are for Fort Collins-Loveland Municipal Airport, which is 10 miles from Johnstown.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Johnstown
High Temp: 89 °F
Low Temp: 17 °F
Mean Temp: 51 °F
Precipitation: 0.99"
Humidity: 54%
Dew Point: 31 °F
Wind: 13 mph
Pressure: 30.02 "Hg
Visibility: 10 mi
January Climate & Weather Averages in Johnstown
High Temp: 44 °F
Low Temp: 17 °F
Mean Temp: 31 °F
Precipitation: 0.54"
Humidity: 60%
Dew Point: 16 °F
Wind: 11 mph
Pressure: 30.08 "Hg
Visibility: 10 mi
February Climate & Weather Averages in Johnstown
High Temp: 46 °F
Low Temp: 19 °F
Mean Temp: 33 °F
Precipitation: 0.35"
Humidity: 59%
Dew Point: 17 °F
Wind: 13 mph
Pressure: 30.03 "Hg
Visibility: 9 mi
March Climate & Weather Averages in Johnstown
High Temp: 56 °F
Low Temp: 27 °F
Mean Temp: 42 °F
Precipitation: 1.07"
Humidity: 53%
Dew Point: 22 °F
Wind: 14 mph
Pressure: 30.00 "Hg
Visibility: 10 mi
April Climate & Weather Averages in Johnstown
High Temp: 63 °F
Low Temp: 34 °F
Mean Temp: 48 °F
Precipitation: 1.41"
Humidity: 51%
Dew Point: 28 °F
Wind: 16 mph
Pressure: 29.95 "Hg
Visibility: 10 mi
May Climate & Weather Averages in Johnstown
High Temp: 71 °F
Low Temp: 43 °F
Mean Temp: 57 °F
Precipitation: 2.24"
Humidity: 56%
Dew Point: 39 °F
Wind: 14 mph
Pressure: 29.95 "Hg
Visibility: 10 mi
June Climate & Weather Averages in Johnstown
High Temp: 83 °F
Low Temp: 52 °F
Mean Temp: 67 °F
Precipitation: 1.49"
Humidity: 50%
Dew Point: 45 °F
Wind: 13 mph
Pressure: 29.94 "Hg
Visibility: 10 mi
July Climate & Weather Averages in Johnstown
High Temp: 89 °F
Low Temp: 58 °F
Mean Temp: 74 °F
Precipitation: 1.16"
Humidity: 49%
Dew Point: 50 °F
Wind: 13 mph
Pressure: 30.01 "Hg
Visibility: 10 mi
August Climate & Weather Averages in Johnstown
High Temp: 87 °F
Low Temp: 56 °F
Mean Temp: 71 °F
Precipitation: 1.16"
Humidity: 50%
Dew Point: 49 °F
Wind: 12 mph
Pressure: 30.03 "Hg
Visibility: 10 mi
September Climate & Weather Averages in Johnstown
High Temp: 79 °F
Low Temp: 48 °F
Mean Temp: 64 °F
Precipitation: 0.92"
Humidity: 49%
Dew Point: 41 °F
Wind: 12 mph
Pressure: 30.03 "Hg
Visibility: 10 mi
October Climate & Weather Averages in Johnstown
High Temp: 65 °F
Low Temp: 36 °F
Mean Temp: 51 °F
Precipitation: 0.90"
Humidity: 53%
Dew Point: 31 °F
Wind: 12 mph
Pressure: 30.04 "Hg
Visibility: 10 mi
November Climate & Weather Averages in Johnstown
High Temp: 53 °F
Low Temp: 25 °F
Mean Temp: 39 °F
Precipitation: 0.48"
Humidity: 57%
Dew Point: 22 °F
Wind: 11 mph
Pressure: 30.08 "Hg
Visibility: 10 mi
December Climate & Weather Averages in Johnstown
High Temp: 43 °F
Low Temp: 17 °F
Mean Temp: 30 °F
Precipitation: 0.19"
Humidity: 60%
Dew Point: 15 °F
Wind: 11 mph
Pressure: 30.06 "Hg
Visibility: 10 mi