Weather on October 23
Fullerton, CA
55 Years of Data
Avg High
81°F
Avg Low
57°F
Warmest
2007
88°F avg
Coldest
1975
60°F avg
About This Date
October 23rd in Fullerton, CA typically brings warm fall weather, with average highs around 81°F and lows near 57°F. Over 55 years of records, the warmest October 23rd was in 2007 (88°F average), while the coldest was 1975 (60°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 13% of October 23rd dates historically, with the wettest October 23rd recording 1.85" of rain. The last decade has been 4.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.4°F warmer on this date compared to 20-30 years ago.
Planning for October 23rd in Fullerton, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 57° | 66° | — | — |
| 2024 | 87° | 57° | 72° | — | — |
| 2023 | 75° | 63° | 69° | — | — |
| 2022 | 75° | 57° | 66° | 0.05" | — |
| 2021 | 73° | 59° | 66° | 0.25" | — |
| 2020 | 78° | 64° | 71° | — | — |
| 2019 | 95° | 62° | 79° | — | — |
| 2018 | 79° | 62° | 70° | — | — |
| 2017 | 105° | 71° | 88° | — | — |
| 2016 | 84° | 60° | 72° | 0.03" | — |
| 2015 | 87° | 62° | 75° | — | — |
| 2014 | 89° | 60° | 75° | — | — |
| 2013 | 75° | 60° | 68° | — | — |
| 2012 | 72° | 59° | 65° | — | — |
| 2011 | 82° | 57° | 70° | — | — |
| 2010 | 70° | 57° | 63° | 0.03" | — |
| 2009 | 91° | 55° | 73° | — | — |
| 2008 | 97° | 79° | 88° | — | — |
| 2007warmest | 98° | 79° | 88° | — | — |
| 2006 | 93° | 59° | 76° | — | — |
| 2005 | 71° | 61° | 66° | — | — |
| 2004 | 74° | 53° | 63° | — | — |
| 2003 | 95° | 59° | 77° | — | — |
| 2002 | 65° | 56° | 60° | — | — |
| 2001 | 74° | 54° | 64° | — | — |
| 2000 | 82° | 58° | 70° | — | — |
| 1999 | 88° | 54° | 71° | — | — |
| 1998 | 86° | 58° | 72° | — | — |
| 1997 | 72° | 63° | 67° | — | — |
| 1996 | 82° | 48° | 65° | — | — |
| 1995 | 84° | 57° | 71° | — | — |
| 1994 | 78° | 52° | 65° | — | — |
| 1993 | 86° | 55° | 71° | — | — |
| 1992 | 87° | 63° | 75° | 0.03" | — |
| 1991 | 72° | 59° | 65° | — | — |
| 1990 | 91° | 57° | 74° | — | — |
| 1989 | 75° | 61° | 68° | — | — |
| 1988 | 73° | 60° | 67° | — | — |
| 1987 | 74° | 63° | 68° | 1.85" | — |
| 1986 | 76° | 56° | 66° | — | — |
| 1985 | 78° | 52° | 65° | — | — |
| 1984 | 80° | 52° | 66° | — | — |
| 1983 | 83° | 58° | 70° | — | — |
| 1982 | 98° | 63° | 80° | — | — |
| 1981 | 89° | 46° | 68° | — | — |
| 1980 | 80° | 47° | 63° | — | — |
| 1979 | 80° | 45° | 62° | — | — |
| 1978 | 87° | 45° | 66° | — | — |
| 1977 | 79° | 50° | 64° | — | — |
| 1976 | 75° | 58° | 66° | — | — |
| 1975coldest | 76° | 45° | 60° | — | — |
| 1974 | 74° | 50° | 62° | — | — |
| 1973 | 72° | 55° | 63° | 0.2" | — |
| 1972 | 78° | 50° | 64° | — | — |
| 1971 | 78° | 46° | 62° | — | — |
55 years of data from ANAHEIM