Weather on May 28
Costa Mesa, CA
55 Years of Data
Avg High
74°F
Avg Low
59°F
Warmest
1973
78°F avg
Coldest
1971
59°F avg
About This Date
May 28th in Costa Mesa, CA typically brings pleasant spring weather, with average highs around 74°F and lows near 59°F. Over 55 years of records, the warmest May 28th was in 1973 (78°F average), while the coldest was 1971 (59°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 28th dates historically, with the wettest May 28th recording 1.32" of rain. The last decade has been 2.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.0°F cooler on this date compared to 20-30 years ago.
Planning for May 28th in Costa Mesa, CA? Great weather for outdoor activities.
Cooling Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 63° | 67° | — | — |
| 2024 | 70° | 59° | 64° | — | — |
| 2023 | 67° | 62° | 64° | — | — |
| 2022 | 71° | 63° | 67° | — | — |
| 2021 | 72° | 61° | 66° | — | — |
| 2020 | 74° | 63° | 68° | — | — |
| 2019 | 69° | 53° | 61° | — | — |
| 2018 | 72° | 60° | 66° | — | — |
| 2017 | 73° | 58° | 65° | — | — |
| 2016 | 70° | 61° | 65° | — | — |
| 2015 | 73° | 58° | 65° | — | — |
| 2014 | 76° | 66° | 71° | — | — |
| 2013 | 73° | 62° | 68° | — | — |
| 2012 | 76° | 58° | 67° | — | — |
| 2011 | 69° | 58° | 63° | — | — |
| 2010 | 70° | 58° | 64° | — | — |
| 2009 | 71° | 62° | 67° | — | — |
| 2008 | 71° | 55° | 63° | — | — |
| 2007 | 68° | 59° | 64° | — | — |
| 2006 | 75° | 58° | 66° | — | — |
| 2005 | 70° | 62° | 66° | — | — |
| 2004 | 66° | 62° | 64° | — | — |
| 2003 | 78° | 59° | 69° | — | — |
| 2002 | 72° | 56° | 64° | — | — |
| 2001 | 70° | 61° | 65° | — | — |
| 2000 | 83° | 63° | 73° | — | — |
| 1999 | 68° | 60° | 64° | — | — |
| 1998 | 74° | 54° | 64° | — | — |
| 1997 | 92° | 65° | 78° | — | — |
| 1996 | 75° | 57° | 66° | — | — |
| 1995 | 73° | 58° | 65° | — | — |
| 1994 | 76° | 56° | 66° | — | — |
| 1993 | 75° | 59° | 67° | — | — |
| 1992 | 75° | 62° | 69° | — | — |
| 1991 | 71° | 56° | 63° | — | — |
| 1990 | 67° | 57° | 62° | 1.32" | — |
| 1989 | 73° | 59° | 66° | — | — |
| 1988 | 72° | 60° | 66° | — | — |
| 1987 | 72° | 54° | 63° | — | — |
| 1986 | 79° | 61° | 70° | — | — |
| 1985 | 73° | 53° | 63° | — | — |
| 1984 | 93° | 58° | 75° | — | — |
| 1983 | 76° | 63° | 69° | — | — |
| 1982 | 72° | 59° | 65° | — | — |
| 1981 | 75° | 62° | 69° | — | — |
| 1980 | 68° | 50° | 59° | — | — |
| 1979 | 69° | 61° | 65° | — | — |
| 1978 | 98° | 58° | 78° | — | — |
| 1977 | 74° | 54° | 64° | — | — |
| 1976 | 73° | 58° | 65° | — | — |
| 1975 | 74° | 56° | 65° | — | — |
| 1974 | 74° | 59° | 66° | — | — |
| 1973warmest | 96° | 59° | 78° | — | — |
| 1972 | 93° | 60° | 77° | — | — |
| 1971coldest | 65° | 53° | 59° | 0.58" | — |
55 years of data from SANTA ANA JOHN WAYNE AP