Annual Weather Averages Near Castle Rock
Averages are for Centennial Airport, which is 14 miles from Castle Rock.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Castle Rock
High Temp: 89 °F
Low Temp: 19 °F
Mean Temp: 51 °F
Precipitation: 1.32"
Humidity: 48%
Dew Point: 29 °F
Wind: 11 mph
Pressure: 29.99 "Hg
Visibility: 13 mi
January Climate & Weather Averages in Castle Rock
High Temp: 46 °F
Low Temp: 19 °F
Mean Temp: 32 °F
Precipitation: 0.43"
Humidity: 52%
Dew Point: 14 °F
Wind: 11 mph
Pressure: 30.07 "Hg
Visibility: 13 mi
February Climate & Weather Averages in Castle Rock
High Temp: 47 °F
Low Temp: 20 °F
Mean Temp: 33 °F
Precipitation: 0.52"
Humidity: 53%
Dew Point: 15 °F
Wind: 11 mph
Pressure: 30.02 "Hg
Visibility: 13 mi
March Climate & Weather Averages in Castle Rock
High Temp: 55 °F
Low Temp: 27 °F
Mean Temp: 41 °F
Precipitation: 1.17"
Humidity: 48%
Dew Point: 20 °F
Wind: 12 mph
Pressure: 29.99 "Hg
Visibility: 13 mi
April Climate & Weather Averages in Castle Rock
High Temp: 61 °F
Low Temp: 33 °F
Mean Temp: 47 °F
Precipitation: 1.89"
Humidity: 49%
Dew Point: 26 °F
Wind: 13 mph
Pressure: 29.93 "Hg
Visibility: 13 mi
May Climate & Weather Averages in Castle Rock
High Temp: 70 °F
Low Temp: 42 °F
Mean Temp: 56 °F
Precipitation: 2.18"
Humidity: 52%
Dew Point: 37 °F
Wind: 12 mph
Pressure: 29.91 "Hg
Visibility: 14 mi
June Climate & Weather Averages in Castle Rock
High Temp: 83 °F
Low Temp: 52 °F
Mean Temp: 67 °F
Precipitation: 2.01"
Humidity: 45%
Dew Point: 43 °F
Wind: 11 mph
Pressure: 29.88 "Hg
Visibility: 15 mi
July Climate & Weather Averages in Castle Rock
High Temp: 89 °F
Low Temp: 58 °F
Mean Temp: 73 °F
Precipitation: 2.04"
Humidity: 44%
Dew Point: 48 °F
Wind: 10 mph
Pressure: 29.94 "Hg
Visibility: 14 mi
August Climate & Weather Averages in Castle Rock
High Temp: 86 °F
Low Temp: 56 °F
Mean Temp: 71 °F
Precipitation: 2.18"
Humidity: 46%
Dew Point: 47 °F
Wind: 10 mph
Pressure: 29.97 "Hg
Visibility: 13 mi
September Climate & Weather Averages in Castle Rock
High Temp: 79 °F
Low Temp: 48 °F
Mean Temp: 64 °F
Precipitation: 1.41"
Humidity: 44%
Dew Point: 39 °F
Wind: 10 mph
Pressure: 29.98 "Hg
Visibility: 13 mi
October Climate & Weather Averages in Castle Rock
High Temp: 66 °F
Low Temp: 36 °F
Mean Temp: 51 °F
Precipitation: 0.99"
Humidity: 47%
Dew Point: 29 °F
Wind: 10 mph
Pressure: 30.01 "Hg
Visibility: 13 mi
November Climate & Weather Averages in Castle Rock
High Temp: 54 °F
Low Temp: 26 °F
Mean Temp: 40 °F
Precipitation: 0.61"
Humidity: 48%
Dew Point: 19 °F
Wind: 10 mph
Pressure: 30.06 "Hg
Visibility: 12 mi
December Climate & Weather Averages in Castle Rock
High Temp: 46 °F
Low Temp: 19 °F
Mean Temp: 32 °F
Precipitation: 0.38"
Humidity: 51%
Dew Point: 14 °F
Wind: 11 mph
Pressure: 30.06 "Hg
Visibility: 13 mi