Weather on December 15
West Covina, CA
55 Years of Data
About This Date
December 15th in West Covina, CA typically brings mild winter weather, with average highs around 69°F and lows near 44°F — a 25°F daily swing. Over 54 years of records, the warmest December 15th was in 2017 (70°F average), while the coldest was 1987 (44°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 2% of December 15th dates historically, with the wettest December 15th recording 2.16" of rain. The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
Planning for December 15th in West Covina, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 48° | 60° | — | — |
| 2024 | 67° | 47° | 57° | — | — |
| 2023 | 78° | 59° | 69° | — | — |
| 2022 | 63° | 47° | 55° | — | — |
| 2021 | 58° | 38° | 48° | — | — |
| 2020 | 70° | 49° | 59° | — | — |
| 2019 | 66° | 45° | 55° | — | — |
| 2018 | 77° | 55° | 66° | — | — |
| 2017warmest | 83° | 58° | 70° | — | — |
| 2015 | 62° | 37° | 50° | — | — |
| 2014 | 69° | 53° | 61° | — | — |
| 2013 | 84° | 54° | 69° | — | — |
| 2012 | 64° | 41° | 53° | — | — |
| 2011 | 61° | 41° | 51° | — | — |
| 2010 | 60° | 52° | 56° | — | — |
| 2009 | 71° | 48° | 60° | — | — |
| 2008 | 52° | 42° | 47° | — | — |
| 2007 | 70° | 48° | 59° | — | — |
| 2006 | 69° | 52° | 60° | — | — |
| 2005 | 68° | 44° | 56° | — | — |
| 2004 | 81° | 51° | 66° | — | — |
| 2003 | 66° | 42° | 54° | — | — |
| 2002 | 68° | 51° | 60° | — | — |
| 2001 | 61° | 42° | 51° | — | — |
| 2000 | 65° | 47° | 56° | — | — |
| 1999 | 76° | 48° | 62° | — | — |
| 1998 | 85° | 43° | 64° | — | — |
| 1997 | 69° | 49° | 59° | — | — |
| 1996 | 56° | 55° | 55° | — | — |
| 1995 | 73° | 51° | 62° | — | — |
| 1994 | 66° | 43° | 54° | — | — |
| 1993 | 60° | 41° | 51° | — | — |
| 1992 | 62° | 35° | 49° | — | — |
| 1991 | 79° | 42° | 60° | — | — |
| 1990 | 65° | 36° | 50° | — | — |
| 1989 | 74° | 42° | 58° | — | — |
| 1988 | 52° | 57° | 54° | 2.16" | — |
| 1987coldest | 55° | 32° | 44° | — | — |
| 1986 | 69° | 42° | 56° | — | — |
| 1985 | 76° | 41° | 58° | — | — |
| 1984 | 59° | 35° | 47° | — | — |
| 1983 | 73° | 44° | 59° | — | — |
| 1982 | 69° | 39° | 54° | — | — |
| 1981 | 78° | 44° | 61° | — | — |
| 1980 | 85° | 39° | 62° | — | — |
| 1979 | 80° | 37° | 59° | — | — |
| 1978 | 73° | 39° | 56° | — | — |
| 1977 | 72° | 46° | 59° | — | — |
| 1976 | 87° | 40° | 63° | — | — |
| 1975 | 73° | 31° | 52° | — | — |
| 1974 | 74° | 41° | 57° | — | — |
| 1973 | 79° | 41° | 60° | — | — |
| 1972 | 66° | 33° | 50° | — | — |
| 1971 | 61° | 37° | 49° | — | — |
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.
Best Time to Visit West Covina, CA
Most pleasant months in West Covina, CA: May.