Weather on September 23
Temecula, CA
55 Years of Data
Avg High
88°F
Avg Low
59°F
Warmest
2002
89°F avg
Coldest
1986
59°F avg
About This Date
September 23rd in Temecula, CA typically brings warm fall weather, with average highs around 88°F and lows near 59°F — a 29°F daily swing. Over 53 years of records, the warmest September 23rd was in 2002 (89°F average), while the coldest was 1986 (59°F) — a 30°F range across recorded history. This date has historically been dry, with little recorded precipitation. 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 September 23rd in Temecula, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 95° | 65° | 80° | — | — |
| 2024 | 89° | 56° | 72° | — | — |
| 2023 | 81° | 56° | 69° | — | — |
| 2022 | 94° | 67° | 80° | — | — |
| 2021 | 89° | 60° | 75° | — | — |
| 2020 | 92° | 62° | 77° | — | — |
| 2019 | 85° | 60° | 72° | — | — |
| 2018 | 84° | 59° | 71° | — | — |
| 2017 | 75° | 53° | 64° | — | — |
| 2016 | 83° | 56° | 69° | — | — |
| 2015 | 91° | 62° | 77° | — | — |
| 2014 | 94° | 62° | 78° | — | — |
| 2013 | 96° | 59° | 77° | — | — |
| 2012 | 103° | 66° | 85° | — | — |
| 2011 | 85° | 57° | 71° | — | — |
| 2010 | 84° | 52° | 68° | — | — |
| 2009 | 104° | 74° | 89° | — | — |
| 2008 | 87° | 59° | 73° | — | — |
| 2007 | 66° | 52° | 59° | — | — |
| 2006 | 80° | 54° | 67° | — | — |
| 2005 | 82° | 56° | 69° | — | — |
| 2004 | 92° | 62° | 77° | — | — |
| 2003 | 97° | 58° | 77° | — | — |
| 2002warmest | 104° | 74° | 89° | — | — |
| 2001 | 86° | 67° | 76° | — | — |
| 2000 | 73° | 56° | 64° | — | — |
| 1999 | 77° | 60° | 69° | — | — |
| 1998 | 75° | 52° | 63° | — | — |
| 1997 | 97° | 71° | 84° | — | — |
| 1996 | 79° | 57° | 68° | — | — |
| 1995 | 82° | 63° | 72° | — | — |
| 1994 | 85° | 62° | 73° | — | — |
| 1993 | 81° | 54° | 67° | — | — |
| 1992 | 101° | 64° | 82° | — | — |
| 1991 | 99° | 66° | 82° | — | — |
| 1990 | 79° | 60° | 69° | — | — |
| 1989 | 99° | 53° | 76° | — | — |
| 1988 | 85° | 47° | 66° | — | — |
| 1987 | — | 60° | — | — | — |
| 1986coldest | 70° | 48° | 59° | — | — |
| 1985 | 97° | 55° | 76° | — | — |
| 1984 | 85° | 62° | 73° | — | — |
| 1983 | 90° | 71° | 80° | — | — |
| 1982 | 106° | 58° | 82° | — | — |
| 1981 | 85° | 57° | 71° | — | — |
| 1980 | 94° | 54° | 74° | — | — |
| 1979 | 97° | 55° | 76° | — | — |
| 1978 | 101° | 53° | 77° | — | — |
| 1977 | 84° | 49° | 66° | — | — |
| 1976 | 77° | 59° | 68° | — | — |
| 1975 | 99° | 51° | 75° | — | — |
| 1974 | 98° | 60° | 79° | — | — |
| 1973 | 77° | 54° | 65° | — | — |
53 years of data from FALLBROOK 5 NE