Weather on September 19
El Monte, CA
55 Years of Data
Avg High
86°F
Avg Low
60°F
Warmest
1984
86°F avg
Coldest
2024
65°F avg
About This Date
September 19th in El Monte, CA typically brings warm fall weather, with average highs around 86°F and lows near 60°F — a 26°F daily swing. Over 55 years of records, the warmest September 19th was in 1984 (86°F average), while the coldest was 2024 (65°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 19th dates historically, with the wettest September 19th recording 0.97" of rain. The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.
Planning for September 19th in El Monte, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 88° | 66° | 77° | — | — |
| 2024coldest | 73° | 58° | 65° | — | — |
| 2023 | 79° | 58° | 68° | — | — |
| 2022 | 82° | 60° | 71° | — | — |
| 2021 | 81° | 56° | 68° | — | — |
| 2020 | 92° | 63° | 77° | — | — |
| 2019 | 80° | 59° | 70° | — | — |
| 2018 | 83° | 58° | 70° | — | — |
| 2017 | 78° | 60° | 69° | — | — |
| 2016 | 100° | 62° | 81° | — | — |
| 2015 | 93° | 69° | 81° | — | — |
| 2014 | 83° | 69° | 76° | — | — |
| 2013 | 82° | 60° | 71° | — | — |
| 2012 | 90° | 62° | 76° | — | — |
| 2011 | 91° | 59° | 75° | — | — |
| 2010 | 83° | 57° | 70° | — | — |
| 2009 | 90° | 63° | 76° | — | — |
| 2008 | 86° | 63° | 74° | — | — |
| 2007 | 72° | 63° | 67° | — | — |
| 2006 | 86° | 57° | 72° | — | — |
| 2005 | 82° | 59° | 71° | — | — |
| 2004 | 79° | 61° | 70° | — | — |
| 2003 | 96° | 66° | 81° | — | — |
| 2002 | 93° | 59° | 76° | — | — |
| 2001 | 85° | 59° | 72° | — | — |
| 2000 | 89° | 62° | 76° | — | — |
| 1999 | 85° | 60° | 72° | — | — |
| 1998 | 72° | 65° | 68° | — | — |
| 1997 | 88° | 60° | 74° | — | — |
| 1996 | 89° | 58° | 73° | — | — |
| 1995 | 88° | 52° | 70° | — | — |
| 1994 | 88° | 58° | 73° | — | — |
| 1993 | 85° | 55° | 70° | — | — |
| 1992 | 96° | 56° | 76° | — | — |
| 1991 | 92° | 58° | 75° | — | — |
| 1990 | 79° | 61° | 70° | — | — |
| 1989 | 78° | 54° | 66° | 0.97" | — |
| 1988 | 77° | 55° | 66° | — | — |
| 1987 | 89° | 56° | 72° | — | — |
| 1986 | 78° | 53° | 66° | — | — |
| 1985 | 78° | 54° | 66° | — | — |
| 1984warmest | 100° | 71° | 86° | — | — |
| 1983 | 94° | 71° | 82° | — | — |
| 1982 | 84° | 60° | 72° | — | — |
| 1981 | 97° | 65° | 81° | — | — |
| 1980 | 85° | 57° | 71° | — | — |
| 1979 | 100° | 63° | 81° | — | — |
| 1978 | 87° | 50° | 69° | — | — |
| 1977 | 81° | 53° | 67° | — | — |
| 1976 | 80° | 58° | 69° | — | — |
| 1975 | 91° | 60° | 76° | — | — |
| 1974 | 83° | 60° | 71° | — | — |
| 1973 | 81° | 54° | 67° | — | — |
| 1972 | 78° | 53° | 66° | — | — |
| 1971 | 92° | 56° | 74° | — | — |
55 years of data from SAN GABRIEL FIRE DEPT