Weather on May 21
West Covina, CA
55 Years of Data
About This Date
May 21st in West Covina, CA typically brings pleasant spring weather, with average highs around 79°F and lows near 55°F. Over 56 years of records, the warmest May 21st was in 2005 (78°F average), while the coldest was 1972 (56°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 2% of May 21st dates historically. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for May 21st in West Covina, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 85° | 59° | 72° | — | — |
| 2025 | 94° | 58° | 76° | — | — |
| 2024 | 76° | 54° | 65° | — | — |
| 2023 | 81° | 61° | 71° | — | — |
| 2022 | 73° | 57° | 65° | — | — |
| 2021 | 76° | 51° | 64° | — | — |
| 2020 | 89° | 54° | 71° | — | — |
| 2019 | 66° | 55° | 61° | — | — |
| 2018 | 63° | 57° | 60° | — | — |
| 2017 | 95° | 61° | 78° | — | — |
| 2016 | 73° | 52° | 62° | — | — |
| 2015 | 74° | 58° | 66° | — | — |
| 2014 | 77° | 53° | 65° | — | — |
| 2013 | 91° | 58° | 74° | — | — |
| 2012 | 93° | 52° | 72° | — | — |
| 2011 | 84° | 48° | 66° | — | — |
| 2010 | 80° | 51° | 66° | — | — |
| 2009 | 87° | 55° | 71° | — | — |
| 2008 | 83° | 60° | 71° | — | — |
| 2007 | 63° | 56° | 59° | — | — |
| 2006 | 72° | 60° | 66° | — | — |
| 2005warmest | 99° | 57° | 78° | — | — |
| 2004 | 73° | 57° | 65° | — | — |
| 2003 | 99° | 55° | 77° | — | — |
| 2002 | 69° | 47° | 58° | — | — |
| 2001 | 82° | 52° | 67° | — | — |
| 2000 | 88° | 57° | 72° | — | — |
| 1999 | 64° | 53° | 59° | — | — |
| 1998 | 74° | 52° | 63° | — | — |
| 1997 | 85° | 60° | 72° | — | — |
| 1996 | 76° | 54° | 65° | — | — |
| 1995 | 72° | 53° | 62° | — | — |
| 1994 | 84° | 48° | 66° | — | — |
| 1993 | 78° | 60° | 69° | — | — |
| 1992 | 79° | 59° | 69° | — | — |
| 1991 | 74° | 55° | 64° | — | — |
| 1990 | 79° | 53° | 66° | — | — |
| 1989 | 83° | 52° | 67° | — | — |
| 1988 | 93° | 59° | 76° | — | — |
| 1987 | 71° | 49° | 60° | — | — |
| 1986 | 78° | 60° | 69° | — | — |
| 1985 | 79° | 56° | 67° | — | — |
| 1984 | 80° | 59° | 70° | — | — |
| 1983 | 83° | 58° | 70° | — | — |
| 1982 | 74° | 60° | 67° | — | — |
| 1981 | 76° | 48° | 62° | — | — |
| 1980 | 66° | 55° | 61° | 0.18" | — |
| 1979 | 75° | 60° | 68° | — | — |
| 1978 | 78° | 55° | 67° | — | — |
| 1977 | 82° | 50° | 66° | — | — |
| 1976 | 76° | 57° | 66° | — | — |
| 1975 | 69° | 43° | 56° | — | — |
| 1974 | 87° | 48° | 68° | — | — |
| 1973 | 75° | 57° | 66° | — | — |
| 1972coldest | 70° | 42° | 56° | — | — |
| 1971 | 74° | 52° | 63° | — | — |
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.