Annual Weather Averages in El Cajon
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in El Cajon
High Temp: 89 °F
Low Temp: 42 °F
Mean Temp: 66 °F
Precipitation: 0.92"
Humidity: 66%
Dew Point: 50 °F
Wind: 9 mph
Pressure: 29.99 "Hg
Visibility: 14 mi
January Climate & Weather Averages in El Cajon
High Temp: 70 °F
Low Temp: 43 °F
Mean Temp: 57 °F
Precipitation: 2.30"
Humidity: 65%
Dew Point: 42 °F
Wind: 6 mph
Pressure: 30.09 "Hg
Visibility: 15 mi
February Climate & Weather Averages in El Cajon
High Temp: 70 °F
Low Temp: 45 °F
Mean Temp: 57 °F
Precipitation: 2.67"
Humidity: 67%
Dew Point: 43 °F
Wind: 8 mph
Pressure: 30.06 "Hg
Visibility: 15 mi
March Climate & Weather Averages in El Cajon
High Temp: 72 °F
Low Temp: 48 °F
Mean Temp: 60 °F
Precipitation: 1.46"
Humidity: 68%
Dew Point: 46 °F
Wind: 9 mph
Pressure: 30.03 "Hg
Visibility: 14 mi
April Climate & Weather Averages in El Cajon
High Temp: 75 °F
Low Temp: 51 °F
Mean Temp: 63 °F
Precipitation: 0.71"
Humidity: 66%
Dew Point: 48 °F
Wind: 11 mph
Pressure: 29.99 "Hg
Visibility: 15 mi
May Climate & Weather Averages in El Cajon
High Temp: 77 °F
Low Temp: 56 °F
Mean Temp: 66 °F
Precipitation: 0.30"
Humidity: 69%
Dew Point: 52 °F
Wind: 12 mph
Pressure: 29.95 "Hg
Visibility: 13 mi
June Climate & Weather Averages in El Cajon
High Temp: 82 °F
Low Temp: 60 °F
Mean Temp: 71 °F
Precipitation: 0.06"
Humidity: 69%
Dew Point: 56 °F
Wind: 11 mph
Pressure: 29.91 "Hg
Visibility: 13 mi
July Climate & Weather Averages in El Cajon
High Temp: 87 °F
Low Temp: 64 °F
Mean Temp: 75 °F
Precipitation: 0.14"
Humidity: 68%
Dew Point: 60 °F
Wind: 11 mph
Pressure: 29.93 "Hg
Visibility: 14 mi
August Climate & Weather Averages in El Cajon
High Temp: 89 °F
Low Temp: 65 °F
Mean Temp: 77 °F
Precipitation: 0.03"
Humidity: 67%
Dew Point: 61 °F
Wind: 11 mph
Pressure: 29.91 "Hg
Visibility: 14 mi
September Climate & Weather Averages in El Cajon
High Temp: 88 °F
Low Temp: 63 °F
Mean Temp: 75 °F
Precipitation: 0.08"
Humidity: 65%
Dew Point: 58 °F
Wind: 10 mph
Pressure: 29.89 "Hg
Visibility: 14 mi
October Climate & Weather Averages in El Cajon
High Temp: 82 °F
Low Temp: 56 °F
Mean Temp: 69 °F
Precipitation: 0.53"
Humidity: 64%
Dew Point: 52 °F
Wind: 8 mph
Pressure: 29.95 "Hg
Visibility: 13 mi
November Climate & Weather Averages in El Cajon
High Temp: 76 °F
Low Temp: 47 °F
Mean Temp: 62 °F
Precipitation: 0.98"
Humidity: 63%
Dew Point: 45 °F
Wind: 6 mph
Pressure: 30.03 "Hg
Visibility: 14 mi
December Climate & Weather Averages in El Cajon
High Temp: 70 °F
Low Temp: 42 °F
Mean Temp: 56 °F
Precipitation: 1.80"
Humidity: 65%
Dew Point: 41 °F
Wind: 6 mph
Pressure: 30.08 "Hg
Visibility: 15 mi