Weather on March 31
Costa Mesa, CA
55 Years of Data
About This Date
March 31st in Costa Mesa, CA typically brings pleasant spring weather, with average highs around 72°F and lows near 51°F. Over 56 years of records, the warmest March 31st was in 2011 (73°F average), while the coldest was 1977 (52°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 13% of March 31st dates historically, with the wettest March 31st recording 2.69" 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 31st in Costa Mesa, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 71° | 64° | 68° | 0.05" | — |
| 2025 | 68° | 57° | 63° | 0.08" | — |
| 2024 | 59° | 52° | 55° | 2.69" | — |
| 2023 | 64° | 48° | 56° | — | — |
| 2022 | 64° | 59° | 62° | — | — |
| 2021 | 88° | 52° | 70° | — | — |
| 2020 | 75° | 56° | 65° | — | — |
| 2019 | 80° | 54° | 67° | — | — |
| 2018 | 68° | 53° | 61° | — | — |
| 2017 | 69° | 56° | 62° | — | — |
| 2016 | 69° | 48° | 59° | — | — |
| 2015 | 69° | 58° | 63° | — | — |
| 2014 | 66° | 52° | 59° | — | — |
| 2013 | 68° | 56° | 62° | — | — |
| 2012 | 64° | 55° | 60° | 0.13" | — |
| 2011warmest | 90° | 57° | 73° | — | — |
| 2010 | 62° | 51° | 57° | — | — |
| 2009 | 69° | 51° | 60° | — | — |
| 2008 | 63° | 50° | 56° | — | — |
| 2007 | 73° | 48° | 61° | — | — |
| 2006 | 63° | 53° | 58° | 0.13" | — |
| 2005 | 81° | 51° | 66° | — | — |
| 2004 | 68° | 56° | 62° | — | — |
| 2003 | 82° | 55° | 69° | — | — |
| 2002 | 65° | 53° | 59° | — | — |
| 2001 | 68° | 58° | 63° | — | — |
| 2000 | 83° | 49° | 66° | — | — |
| 1999 | 60° | 50° | 55° | — | — |
| 1998 | 64° | 47° | 55° | — | — |
| 1997 | 69° | 57° | 63° | — | — |
| 1996 | 74° | 47° | 60° | — | — |
| 1995 | 82° | 50° | 66° | — | — |
| 1994 | 74° | 54° | 64° | — | — |
| 1993 | 71° | 50° | 61° | — | — |
| 1992 | 70° | 52° | 61° | 0.08" | — |
| 1991 | 75° | 51° | 63° | — | — |
| 1990 | 70° | 45° | 57° | — | — |
| 1989 | 84° | 54° | 69° | — | — |
| 1988 | 78° | 48° | 63° | — | — |
| 1987 | 82° | 48° | 65° | — | — |
| 1986 | 75° | 56° | 65° | — | — |
| 1985 | 82° | 46° | 64° | — | — |
| 1984 | 68° | 50° | 59° | — | — |
| 1983 | 74° | 52° | 63° | — | — |
| 1982 | 67° | 43° | 55° | — | — |
| 1981 | 71° | 49° | 60° | — | — |
| 1980 | 70° | 51° | 60° | — | — |
| 1979 | 75° | 46° | 61° | — | — |
| 1978 | 68° | 52° | 60° | 1.42" | — |
| 1977coldest | 61° | 43° | 52° | — | — |
| 1976 | 77° | 49° | 63° | — | — |
| 1975 | 75° | 43° | 59° | — | — |
| 1974 | 68° | 42° | 55° | — | — |
| 1973 | 66° | 47° | 56° | — | — |
| 1972 | 78° | 45° | 61° | — | — |
| 1971 | 70° | 51° | 60° | — | — |
Costa Mesa, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Costa Mesa, CA Monthly Precipitation
Average rainfall per month, in inches.
Costa Mesa, 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 Costa Mesa, CA
Most pleasant months in Costa Mesa, CA: June, July.