Weather on September 1
Murrieta, CA
55 Years of Data
Avg High
92°F
Avg Low
63°F
Warmest
2002
95°F avg
Coldest
1999
62°F avg
About This Date
September 1st in Murrieta, CA typically brings hot fall weather, with average highs around 92°F and lows near 63°F — a 29°F daily swing. Over 55 years of records, the warmest September 1st was in 2002 (95°F average), while the coldest was 1999 (62°F) — a 33°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
Planning for September 1st in Murrieta, CA? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 91° | 72° | 81° | — | — |
| 2024 | 88° | 65° | 76° | — | — |
| 2023 | 80° | 63° | 71° | — | — |
| 2022 | 98° | 74° | 86° | — | — |
| 2021 | 74° | 59° | 66° | — | — |
| 2020 | 82° | 58° | 70° | — | — |
| 2019 | 90° | 70° | 80° | — | — |
| 2018 | 77° | 57° | 67° | — | — |
| 2017 | 106° | 79° | 92° | — | — |
| 2016 | 86° | 60° | 73° | — | — |
| 2015 | 82° | 60° | 71° | — | — |
| 2014 | 87° | 59° | 73° | — | — |
| 2013 | 91° | 69° | 80° | — | — |
| 2012 | 94° | 68° | 81° | — | — |
| 2011 | 87° | 61° | 74° | — | — |
| 2010 | 86° | 62° | 74° | — | — |
| 2009 | 93° | 72° | 82° | — | — |
| 2008 | 82° | 59° | 71° | — | — |
| 2007 | 104° | 79° | 91° | — | — |
| 2006 | 96° | 66° | 81° | — | — |
| 2005 | 85° | 59° | 72° | — | — |
| 2004 | 100° | 73° | 87° | — | — |
| 2003 | 86° | 65° | 75° | — | — |
| 2002warmest | 109° | 80° | 95° | — | — |
| 2001 | 88° | 63° | 75° | — | — |
| 2000 | 76° | 55° | 65° | — | — |
| 1999coldest | 74° | 51° | 62° | — | — |
| 1998 | 101° | 76° | 88° | — | — |
| 1997 | 89° | 68° | 79° | — | — |
| 1996 | 88° | 64° | 76° | — | — |
| 1995 | 95° | 79° | 87° | — | — |
| 1994 | 82° | 57° | 70° | — | — |
| 1993 | 84° | 63° | 73° | — | — |
| 1992 | 86° | 57° | 72° | — | — |
| 1991 | 103° | 64° | 83° | — | — |
| 1990 | 97° | 59° | 78° | — | — |
| 1989 | 96° | 56° | 76° | — | — |
| 1988 | 104° | 67° | 85° | — | — |
| 1987 | 107° | 71° | 89° | — | — |
| 1986 | 90° | 57° | 73° | — | — |
| 1985 | 98° | 66° | 82° | — | — |
| 1984 | 103° | 58° | 80° | — | — |
| 1983 | 94° | 62° | 78° | — | — |
| 1982 | 108° | 62° | 85° | — | — |
| 1981 | 98° | 56° | 77° | — | — |
| 1980 | 97° | 55° | 76° | — | — |
| 1979 | 92° | 55° | 73° | — | — |
| 1978 | 99° | 58° | 78° | — | — |
| 1977 | 92° | 55° | 73° | — | — |
| 1976 | 100° | 59° | 80° | — | — |
| 1975 | 94° | — | — | — | — |
| 1974 | 103° | 60° | 81° | — | — |
| 1973 | 89° | 55° | 72° | — | — |
| 1972 | 100° | 65° | 82° | — | — |
| 1971 | 98° | 50° | 74° | — | — |
55 years of data from SANTA ROSA PLATEAU CALIFORNIA