Weather on August 9
Murrieta, CA
55 Years of Data
Avg High
92°F
Avg Low
64°F
Warmest
1971
91°F avg
Coldest
1999
65°F avg
About This Date
August 9th in Murrieta, CA typically brings hot summer weather, with average highs around 92°F and lows near 64°F — a 28°F daily swing. Over 55 years of records, the warmest August 9th was in 1971 (91°F average), while the coldest was 1999 (65°F) — a 26°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
Planning for August 9th in Murrieta, CA? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
1.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 85° | 68° | 76° | — | — |
| 2024 | 88° | 64° | 76° | — | — |
| 2023 | 85° | 62° | 73° | — | — |
| 2022 | 93° | 73° | 83° | — | — |
| 2021 | 89° | 62° | 76° | — | — |
| 2020 | 86° | 62° | 74° | — | — |
| 2019 | 86° | 62° | 74° | — | — |
| 2018 | 98° | 72° | 85° | — | — |
| 2017 | 88° | 66° | 77° | — | — |
| 2016 | 82° | 58° | 70° | — | — |
| 2015 | 78° | 56° | 67° | — | — |
| 2014 | 83° | 59° | 71° | — | — |
| 2013 | 79° | 56° | 67° | — | — |
| 2012 | 94° | 74° | 84° | — | — |
| 2011 | 79° | 56° | 67° | — | — |
| 2010 | 80° | 53° | 67° | — | — |
| 2009 | 80° | 60° | 70° | — | — |
| 2008 | 85° | 65° | 75° | — | — |
| 2007 | 81° | 56° | 68° | — | — |
| 2006 | 96° | 66° | 81° | — | — |
| 2005 | 90° | 67° | 78° | — | — |
| 2004 | 92° | 71° | 81° | — | — |
| 2003 | 95° | 68° | 82° | — | — |
| 2002 | 97° | 71° | 84° | — | — |
| 2001 | 88° | 62° | 75° | — | — |
| 2000 | 92° | 69° | 80° | — | — |
| 1999coldest | 77° | 54° | 65° | — | — |
| 1998 | 96° | 72° | 84° | — | — |
| 1997 | 79° | 59° | 69° | — | — |
| 1996 | 94° | 65° | 79° | — | — |
| 1995 | 92° | 66° | 79° | — | — |
| 1994 | 96° | 70° | 83° | — | — |
| 1993 | 85° | 63° | 74° | — | — |
| 1992 | 104° | 64° | 84° | — | — |
| 1991 | 102° | 63° | 82° | — | — |
| 1990 | 100° | 65° | 82° | — | — |
| 1989 | 98° | 66° | 82° | — | — |
| 1988 | 92° | 57° | 74° | — | — |
| 1987 | 98° | 60° | 79° | — | — |
| 1986 | 98° | 64° | 81° | — | — |
| 1985 | 97° | 56° | 76° | — | — |
| 1984 | 96° | 63° | 79° | — | — |
| 1983 | 96° | 69° | 83° | — | — |
| 1982 | 104° | 61° | 82° | — | — |
| 1981 | 101° | 66° | 83° | — | — |
| 1980 | 106° | 63° | 84° | — | — |
| 1979 | 100° | 56° | 78° | — | — |
| 1978 | 100° | 66° | 83° | — | — |
| 1977 | 99° | 67° | 83° | — | — |
| 1976 | 96° | 54° | 75° | — | — |
| 1975 | 93° | — | — | — | — |
| 1974 | 91° | 68° | 80° | — | — |
| 1973 | 98° | 58° | 78° | — | — |
| 1972 | 95° | 67° | 81° | — | — |
| 1971warmest | 110° | 72° | 91° | — | — |
55 years of data from SANTA ROSA PLATEAU CALIFORNIA