Weather on September 30
Temecula, CA
55 Years of Data
Avg High
88°F
Avg Low
59°F
Warmest
2020
91°F avg
Coldest
1982
58°F avg
About This Date
September 30th 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 52 years of records, the warmest September 30th was in 2020 (91°F average), while the coldest was 1982 (58°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 8% of September 30th dates historically, with the wettest September 30th recording 1.5" of rain. The last decade has been 2.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.8°F warmer on this date compared to 20-30 years ago.
Planning for September 30th in Temecula, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 81° | 60° | 70° | — | — |
| 2024 | 91° | 57° | 74° | — | — |
| 2023 | 70° | 57° | 63° | 0.24" | — |
| 2022 | 82° | 58° | 70° | 0.02" | — |
| 2021 | 98° | 59° | 78° | — | — |
| 2020warmest | 109° | 73° | 91° | — | — |
| 2019 | 77° | 51° | 64° | — | — |
| 2018 | 91° | 60° | 75° | — | — |
| 2017 | 85° | 61° | 73° | — | — |
| 2016 | 92° | 66° | 79° | — | — |
| 2015 | 92° | 63° | 78° | — | — |
| 2014 | 90° | 61° | 75° | — | — |
| 2013 | 87° | 60° | 74° | — | — |
| 2012 | 100° | 71° | 85° | — | — |
| 2011 | 90° | 57° | 73° | — | — |
| 2010 | 81° | 65° | 73° | 0.09" | — |
| 2009 | 83° | 57° | 70° | — | — |
| 2008 | 103° | 73° | 88° | — | — |
| 2007 | 87° | 59° | 73° | — | — |
| 2006 | 81° | 65° | 73° | — | — |
| 2005 | 96° | 66° | 81° | — | — |
| 2004 | 69° | 54° | 61° | — | — |
| 2003 | 82° | 57° | 70° | — | — |
| 2002 | 64° | 52° | 58° | — | — |
| 2001 | 102° | 61° | 81° | — | — |
| 2000 | 76° | 56° | 66° | — | — |
| 1999 | 101° | 72° | 86° | — | — |
| 1998 | 72° | 54° | 63° | — | — |
| 1997 | 85° | 63° | 74° | — | — |
| 1996 | 82° | 55° | 69° | — | — |
| 1995 | 88° | 59° | 73° | — | — |
| 1994 | 81° | 56° | 68° | — | — |
| 1993 | 96° | 70° | 83° | — | — |
| 1992 | 103° | 59° | 81° | — | — |
| 1991 | 97° | 60° | 78° | — | — |
| 1990 | 92° | 55° | 73° | — | — |
| 1988 | 102° | 62° | 82° | — | — |
| 1987 | 101° | 58° | 79° | — | — |
| 1986 | 90° | 47° | 68° | — | — |
| 1985 | 85° | 59° | 72° | — | — |
| 1984 | 97° | 56° | 76° | — | — |
| 1983 | 58° | 78° | 68° | 1.5" | — |
| 1982coldest | 77° | 40° | 58° | — | — |
| 1981 | 79° | 56° | 67° | — | — |
| 1980 | 107° | 57° | 82° | — | — |
| 1979 | 85° | 53° | 69° | — | — |
| 1978 | 100° | 58° | 79° | — | — |
| 1977 | 81° | 60° | 70° | — | — |
| 1976 | 81° | 59° | 70° | — | — |
| 1975 | 84° | 51° | 68° | — | — |
| 1974 | 97° | 55° | 76° | — | — |
| 1973 | 93° | 46° | 70° | — | — |
52 years of data from FALLBROOK 5 NE