Weather on August 15
Murrieta, CA
55 Years of Data
Avg High
90°F
Avg Low
63°F
Warmest
2015
90°F avg
Coldest
2017
64°F avg
About This Date
August 15th in Murrieta, CA typically brings hot summer weather, with average highs around 90°F and lows near 63°F — a 27°F daily swing. Over 55 years of records, the warmest August 15th was in 2015 (90°F average), while the coldest was 2017 (64°F) — a 26°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
Planning for August 15th in Murrieta, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 57° | 66° | — | — |
| 2024 | 90° | 67° | 78° | — | — |
| 2023 | 92° | 71° | 81° | — | — |
| 2022 | 93° | 66° | 80° | — | — |
| 2021 | 93° | 67° | 80° | — | — |
| 2020 | 99° | 72° | 85° | — | — |
| 2019 | 95° | 68° | 82° | — | — |
| 2018 | 82° | 61° | 71° | — | — |
| 2017coldest | 72° | 56° | 64° | — | — |
| 2016 | 100° | 77° | 89° | — | — |
| 2015warmest | 102° | 77° | 90° | — | — |
| 2014 | 93° | 68° | 81° | — | — |
| 2013 | 92° | 67° | 79° | — | — |
| 2012 | 86° | 71° | 79° | — | — |
| 2011 | 85° | 64° | 74° | — | — |
| 2010 | 87° | 62° | 75° | — | — |
| 2009 | 78° | 56° | 67° | — | — |
| 2008 | 84° | 63° | 73° | — | — |
| 2007 | 94° | 70° | 82° | — | — |
| 2006 | 81° | 56° | 68° | — | — |
| 2005 | 74° | 58° | 66° | — | — |
| 2004 | 84° | 59° | 72° | — | — |
| 2003 | 92° | 70° | 81° | — | — |
| 2002 | 83° | 56° | 69° | — | — |
| 2001 | 98° | 68° | 83° | — | — |
| 2000 | 92° | 69° | 80° | — | — |
| 1999 | 85° | 57° | 71° | — | — |
| 1998 | 85° | 60° | 72° | — | — |
| 1997 | 79° | 59° | 69° | — | — |
| 1996 | 94° | 71° | 82° | — | — |
| 1995 | 85° | 57° | 71° | — | — |
| 1994 | 94° | 75° | 84° | — | — |
| 1993 | 75° | 56° | 65° | — | — |
| 1992 | 104° | 73° | 89° | — | — |
| 1991 | 93° | 64° | 79° | — | — |
| 1990 | 84° | 65° | 74° | — | — |
| 1989 | 99° | 57° | 78° | — | — |
| 1988 | 95° | 50° | 73° | — | — |
| 1987 | 85° | 60° | 72° | — | — |
| 1986 | 99° | 57° | 78° | — | — |
| 1985 | 95° | 56° | 75° | — | — |
| 1984 | 99° | 69° | 84° | — | — |
| 1983 | 97° | 70° | 83° | — | — |
| 1982 | 94° | 58° | 76° | — | — |
| 1981 | 99° | 70° | 84° | — | — |
| 1980 | 85° | 68° | 76° | — | — |
| 1979 | 91° | 55° | 73° | — | — |
| 1978 | 98° | 55° | 77° | — | — |
| 1977 | 107° | 68° | 88° | — | — |
| 1976 | 80° | 57° | 69° | — | — |
| 1975 | 96° | 58° | 77° | — | — |
| 1974 | 94° | 51° | 72° | — | — |
| 1973 | 103° | 65° | 84° | — | — |
| 1972 | 88° | 56° | 72° | — | — |
| 1971 | 98° | 60° | 79° | — | — |
55 years of data from SANTA ROSA PLATEAU CALIFORNIA