Weather on March 18
West Covina, CA
55 Years of Data
Avg High
76°F
Avg Low
49°F
Warmest
2026
80°F avg
Coldest
2012
47°F avg
About This Date
March 18th in West Covina, CA typically brings pleasant spring weather, with average highs around 76°F and lows near 49°F — a 27°F daily swing. Over 56 years of records, the warmest March 18th was in 2026 (80°F average), while the coldest was 2012 (47°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 9% of March 18th dates historically, with the wettest March 18th recording 1.3" of rain. 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 March 18th in West Covina, CA? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 96° | 65° | 80° | — | — |
| 2025 | 68° | 44° | 56° | — | — |
| 2024 | 80° | 49° | 64° | — | — |
| 2023 | 76° | 53° | 64° | — | — |
| 2022 | 83° | 56° | 69° | — | — |
| 2021 | 73° | 45° | 59° | — | — |
| 2020 | 63° | 45° | 54° | — | — |
| 2019 | 82° | 54° | 68° | — | — |
| 2018 | 66° | 45° | 55° | — | — |
| 2017 | 82° | 53° | 68° | — | — |
| 2016 | 80° | 52° | 66° | — | — |
| 2015 | 81° | 60° | 70° | — | — |
| 2014 | 84° | 52° | 68° | — | — |
| 2013 | 71° | 49° | 60° | — | — |
| 2012coldest | 57° | 37° | 47° | — | — |
| 2011 | 73° | 45° | 59° | — | — |
| 2010 | 81° | 55° | 68° | — | — |
| 2009 | 92° | 53° | 72° | — | — |
| 2008 | 78° | 50° | 64° | — | — |
| 2007 | 71° | 53° | 62° | — | — |
| 2006 | 61° | 45° | 53° | — | — |
| 2005 | 62° | 48° | 55° | — | — |
| 2004 | 84° | 54° | 69° | — | — |
| 2003 | 79° | 43° | 61° | — | — |
| 2002 | 68° | 39° | 54° | — | — |
| 2001 | 80° | 55° | 68° | — | — |
| 2000 | 83° | 57° | 70° | — | — |
| 1999 | 72° | 45° | 58° | — | — |
| 1998 | 76° | 54° | 65° | — | — |
| 1997 | 94° | 49° | 71° | — | — |
| 1996 | 81° | 52° | 66° | — | — |
| 1995 | 75° | 53° | 64° | — | — |
| 1994 | 79° | 55° | 67° | — | — |
| 1993 | 77° | 57° | 67° | — | — |
| 1992 | 69° | 49° | 59° | — | — |
| 1991 | 69° | 52° | 60° | — | — |
| 1990 | 85° | 45° | 65° | — | — |
| 1989 | 76° | 46° | 61° | — | — |
| 1988 | 84° | 43° | 63° | — | — |
| 1987 | 69° | 44° | 57° | — | — |
| 1986 | 75° | 44° | 60° | — | — |
| 1985 | 70° | 42° | 56° | 0.76" | — |
| 1984 | 81° | 46° | 63° | — | — |
| 1983 | 64° | 48° | 56° | 1.3" | — |
| 1982 | 60° | 42° | 51° | 1.09" | — |
| 1981 | 72° | 46° | 59° | — | — |
| 1980 | 74° | 47° | 60° | 0.71" | — |
| 1979 | 65° | 46° | 55° | 0.58" | — |
| 1978 | 90° | 57° | 73° | — | — |
| 1977 | 69° | 36° | 52° | — | — |
| 1976 | 78° | 48° | 63° | — | — |
| 1975 | 75° | 41° | 58° | — | — |
| 1974 | 78° | 54° | 66° | — | — |
| 1973 | 67° | 45° | 56° | — | — |
| 1972 | 70° | 53° | 61° | — | — |
| 1971 | 80° | 47° | 63° | — | — |
56 years of data from SANTA FE DAM CALIFORNIA