Historical Weather in El Cajon, CA
See 55+ years of weather history for any date in El Cajon going back to 1970.
Part of California weather history
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Today in El Cajon Weather HistorySee records, averages, and 55+ years of data for today's date
→Monthly Climate Averages
Historical temperature and precipitation averages for El Cajon, CA, based on 55+ years of weather data.
Warmest MonthAugustAvg High: 87°F / Low: 64°F
Coldest MonthDecemberAvg High: 69°F / Low: 43°F
Jan
69°/ 43°
💧 10.4"
Feb
70°/ 45°
💧 9.9"
Mar
70°/ 48°
💧 9.6"
Apr
74°/ 51°
💧 5.6"
May
76°/ 55°
💧 3.7"
Jun
80°/ 59°
💧 2.8"
Jul
86°/ 63°
💧 5.0"
Aug
87°/ 64°
💧 4.5"
Sep
86°/ 62°
💧 4.3"
Oct
80°/ 56°
💧 6.8"
Nov
74°/ 47°
💧 8.8"
Dec
69°/ 43°
💧 8.0"
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
El Cajon Temperature Records
- Record High: The hottest temperature ever recorded in El Cajon, CA is 114°F, set on September 5, 2020.
- Record Low: The coldest temperature ever recorded in El Cajon, CA is 20°F, set on February 16, 2004.
- Data Coverage: Based on 47 years of data from NOAA weather station: EL CAJON.
All-Time Record High
114°F
September 5, 2020
All-Time Record Low
20°F
February 16, 2004
Monthly Temperature Records in El Cajon
| Month | Record High | Record Low |
|---|---|---|
| January | 93°F(2021) | 25°F(1971) |
| February | 95°F(2002) | 20°F(2004) |
| March | 102°F(1988) | 29°F(2002) |
| April | 104°F(1989) | 30°F(2004) |
| May | 104°F(1984) | 37°F(2002) |
| June | 109°F(1976) | 40°F(1971) |
| July | 113°F(2006) | 40°F(1977) |
| August | 108°F(1981) | 40°F(1976) |
| September | 114°F(2020) | 42°F(1970) |
| October | 108°F(1987) | 30°F(1971) |
| November | 99°F(2008) | 28°F(1971) |
| December | 93°F(1979) | 24°F(1974) |
El Cajon Snow RecordsSee the top 10 snowiest days ever recorded
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