Historical Weather in West Covina, CA
See 55+ years of weather history for any date in West Covina going back to 1970.
Part of California weather history · California temperature records
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Monthly Climate Averages
Historical temperature and precipitation averages for West Covina, CA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
West Covina, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
West Covina, CA Monthly Precipitation
Average rainfall per month, in inches.
West Covina, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Growing Season & Frost in West Covina, CA
Based on the dates the average overnight low reaches freezing (32°F / 0°C), from 50+ years of NOAA station data.
West Covina, CA also averages 95 days a year at or above 90°F.
Hours of Daylight in West Covina, CA
Day length across the year at 34.1°N latitude. Computed from solar geometry.
Best Time to Visit West Covina, CA
Most pleasant months in West Covina, CA: May.
West Covina Temperature Records
- Record High: The hottest temperature ever recorded in West Covina, CA is 118°F, set on July 6, 2018.
- Record Low: The coldest temperature ever recorded in West Covina, CA is 26°F, set on December 22, 1990.
- Data Coverage: Based on 34 years of data from NOAA weather station: SANTA FE DAM CALIFORNIA.
All-Time Record High
All-Time Record Low
Monthly Temperature Records in West Covina
| Month | Record High | Record Low |
|---|---|---|
| January | 95°F(2003) | 28°F(2007) |
| February | 97°F(2016) | 27°F(1990) |
| March | 100°F(1997) | 32°F(1990) |
| April | 107°F(2004) | 35°F(1975) |
| May | 108°F(2014) | 38°F(1990) |
| June | 112°F(2016) | 41°F(1998) |
| July | 118°F(2018) | 47°F(1983) |
| August | 112°F(2009) | 50°F(1983) |
| September | 116°F(2010) | 46°F(1987) |
| October | 111°F(2012) | 37°F(1971) |
| November | 102°F(2010) | 31°F(1976) |
| December | 91°F(2010) | 26°F(1990) |