Weather on August 15
El Monte, CA
55 Years of Data
Avg High
89°F
Avg Low
62°F
Warmest
1983
88°F avg
Coldest
2011
31°F avg
About This Date
August 15th in El Monte, CA typically brings warm summer weather, with average highs around 89°F and lows near 62°F — a 27°F daily swing. Over 55 years of records, the warmest August 15th was in 1983 (88°F average), while the coldest was 2011 (31°F) — a 57°F range across recorded history. Rain or other precipitation has occurred on about 5% of August 15th dates historically, with the wettest August 15th recording 2.44" of rain. 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 August 15th in El Monte, 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° | 61° | 71° | — | — |
| 2024 | 91° | 64° | 78° | — | — |
| 2023 | 93° | 62° | 78° | — | — |
| 2022 | 92° | 65° | 78° | — | — |
| 2021 | 93° | 64° | 79° | — | — |
| 2020 | 103° | 71° | 87° | — | — |
| 2019 | 94° | 59° | 76° | — | — |
| 2018 | 86° | 64° | 75° | — | — |
| 2017 | 83° | 62° | 72° | — | — |
| 2016 | 104° | 62° | 83° | — | — |
| 2015 | 102° | 70° | 86° | — | — |
| 2014 | 93° | 65° | 79° | — | — |
| 2013 | 89° | 64° | 77° | — | — |
| 2012 | 88° | 68° | 78° | — | — |
| 2011coldest | 93° | -32° | 31° | — | — |
| 2010 | 88° | 53° | 70° | — | — |
| 2009 | 81° | 65° | 73° | — | — |
| 2008 | 87° | 68° | 78° | — | — |
| 2007 | 97° | 68° | 82° | — | — |
| 2006 | 80° | 61° | 70° | — | — |
| 2005 | 77° | 65° | 71° | — | — |
| 2004 | 88° | 65° | 76° | — | — |
| 2003 | 102° | 64° | 83° | — | — |
| 2002 | 88° | 62° | 75° | — | — |
| 2001 | 94° | 62° | 78° | — | — |
| 2000 | 96° | 68° | 82° | — | — |
| 1999 | 88° | 60° | 74° | — | — |
| 1998 | 91° | 67° | 79° | — | — |
| 1997 | 87° | 63° | 75° | — | — |
| 1996 | 97° | 70° | 83° | — | — |
| 1995 | 89° | 62° | 76° | — | — |
| 1994 | 99° | 69° | 84° | — | — |
| 1993 | 81° | 63° | 72° | — | — |
| 1992 | 100° | 72° | 86° | — | — |
| 1991 | 86° | 65° | 75° | — | — |
| 1990 | 76° | 66° | 71° | 0.1" | — |
| 1989 | 92° | 63° | 77° | — | — |
| 1988 | 88° | 56° | 72° | — | — |
| 1987 | 81° | 63° | 72° | — | — |
| 1986 | 88° | 57° | 72° | — | — |
| 1985 | 89° | 57° | 73° | — | — |
| 1984 | 91° | 67° | 79° | 2.44" | — |
| 1983warmest | 98° | 78° | 88° | — | — |
| 1982 | 83° | 55° | 69° | — | — |
| 1981 | 93° | 65° | 79° | — | — |
| 1980 | 79° | 67° | 73° | — | — |
| 1979 | 85° | 57° | 71° | — | — |
| 1978 | 88° | 59° | 73° | — | — |
| 1977 | 95° | 58° | 76° | — | — |
| 1976 | 76° | 59° | 67° | 0.53" | — |
| 1975 | 84° | 57° | 71° | — | — |
| 1974 | 85° | 59° | 72° | — | — |
| 1973 | 90° | 64° | 77° | — | — |
| 1972 | 82° | 56° | 69° | — | — |
| 1971 | 88° | 65° | 76° | — | — |
55 years of data from SAN GABRIEL FIRE DEPT