Weather on May 23
Fullerton, CA
55 Years of Data
Avg High
75°F
Avg Low
57°F
Warmest
2005
75°F avg
Coldest
1971
59°F avg
About This Date
May 23rd in Fullerton, CA typically brings pleasant spring weather, with average highs around 75°F and lows near 57°F. Over 54 years of records, the warmest May 23rd was in 2005 (75°F average), while the coldest was 1971 (59°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 6% of May 23rd dates historically. The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
Planning for May 23rd in Fullerton, CA? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 61° | 68° | — | — |
| 2024 | 68° | 59° | 64° | — | — |
| 2023 | 65° | 59° | 62° | — | — |
| 2022 | 76° | 59° | 67° | — | — |
| 2021 | 78° | 52° | 65° | — | — |
| 2020 | 77° | 61° | 69° | — | — |
| 2019 | 66° | 55° | 61° | 0.13" | — |
| 2018 | 72° | 59° | 65° | — | — |
| 2017 | 85° | 60° | 72° | — | — |
| 2016 | 72° | 57° | 64° | — | — |
| 2015 | 73° | 59° | 66° | — | — |
| 2014 | 73° | 62° | 68° | — | — |
| 2013 | 75° | 63° | 69° | — | — |
| 2012 | 78° | 61° | 69° | — | — |
| 2011 | 72° | 57° | 64° | — | — |
| 2010 | 68° | 54° | 61° | — | — |
| 2009 | 75° | 60° | 68° | — | — |
| 2008 | 64° | 56° | 60° | 0.28" | — |
| 2007 | 77° | 60° | 69° | — | — |
| 2006 | 78° | 55° | 67° | — | — |
| 2005warmest | 86° | 64° | 75° | — | — |
| 2004 | 76° | 61° | 68° | — | — |
| 2003 | 79° | 60° | 69° | — | — |
| 2002 | 74° | 52° | 63° | — | — |
| 2001 | 85° | 60° | 72° | — | — |
| 2000 | 75° | 60° | 68° | — | — |
| 1999 | 71° | 56° | 63° | — | — |
| 1998 | 73° | 55° | 64° | — | — |
| 1997 | 77° | 61° | 69° | — | — |
| 1996 | 70° | 59° | 64° | — | — |
| 1995 | 65° | 57° | 61° | — | — |
| 1994 | 74° | 53° | 63° | — | — |
| 1993 | 75° | 59° | 67° | — | — |
| 1992 | 80° | 63° | 71° | — | — |
| 1991 | 78° | 56° | 67° | — | — |
| 1990 | 81° | 56° | 68° | — | — |
| 1989 | 78° | 55° | 67° | — | — |
| 1988 | 78° | 59° | 69° | — | — |
| 1987 | 72° | 56° | 64° | — | — |
| 1986 | 75° | 57° | 66° | — | — |
| 1985 | 78° | 61° | 69° | — | — |
| 1983 | 77° | 70° | 73° | — | — |
| 1982 | 82° | 58° | 70° | — | — |
| 1981 | 80° | 55° | 68° | — | — |
| 1980 | 68° | 51° | 60° | — | — |
| 1979 | 85° | 55° | 70° | — | — |
| 1978 | 70° | 57° | 63° | — | — |
| 1977 | 66° | 54° | 60° | 0.13" | — |
| 1976 | 76° | 49° | 62° | — | — |
| 1975 | 78° | 45° | 61° | — | — |
| 1974 | 73° | 48° | 61° | — | — |
| 1973 | 78° | 49° | 63° | — | — |
| 1972 | 76° | 46° | 61° | — | — |
| 1971coldest | 74° | 44° | 59° | — | — |
54 years of data from ANAHEIM