Weather on September 27
El Monte, CA
55 Years of Data
Avg High
86°F
Avg Low
61°F
Warmest
2010
85°F avg
Coldest
1986
61°F avg
About This Date
September 27th in El Monte, CA typically brings warm fall weather, with average highs around 86°F and lows near 61°F — a 25°F daily swing. Over 55 years of records, the warmest September 27th was in 2010 (85°F average), while the coldest was 1986 (61°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 27th dates historically. The last decade has been 1.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.1°F cooler on this date compared to 20-30 years ago.
Planning for September 27th in El Monte, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 74° | 62° | 68° | — | — |
| 2024 | 81° | 55° | 68° | — | — |
| 2023 | 83° | 60° | 71° | — | — |
| 2022 | 96° | 72° | 84° | — | — |
| 2021 | 66° | 59° | 63° | — | — |
| 2020 | 87° | 62° | 75° | — | — |
| 2019 | 72° | 61° | 66° | — | — |
| 2018 | 86° | 62° | 74° | — | — |
| 2017 | 89° | 62° | 76° | — | — |
| 2016 | 84° | 72° | 78° | — | — |
| 2015 | 93° | 67° | 80° | — | — |
| 2014 | 75° | 60° | 68° | — | — |
| 2013 | 83° | 53° | 68° | — | — |
| 2012 | 85° | 61° | 73° | — | — |
| 2011 | 98° | 61° | 79° | — | — |
| 2010warmest | 113° | 58° | 85° | — | — |
| 2009 | 92° | 61° | 76° | — | — |
| 2008 | 87° | 64° | 76° | — | — |
| 2007 | 84° | 59° | 72° | — | — |
| 2006 | 83° | 57° | 70° | — | — |
| 2005 | 85° | 59° | 72° | — | — |
| 2004 | 88° | 58° | 73° | — | — |
| 2003 | 92° | 68° | 80° | — | — |
| 2002 | 78° | 60° | 69° | — | — |
| 2001 | 98° | 57° | 78° | — | — |
| 2000 | 84° | 60° | 72° | — | — |
| 1999 | 83° | 60° | 71° | — | — |
| 1998 | 74° | 63° | 68° | — | — |
| 1997 | 93° | 63° | 78° | — | — |
| 1996 | 83° | 63° | 73° | — | — |
| 1995 | 82° | 62° | 72° | — | — |
| 1994 | 98° | 66° | 82° | — | — |
| 1993 | 102° | 57° | 80° | — | — |
| 1992 | 97° | 59° | 78° | — | — |
| 1991 | 94° | 67° | 80° | — | — |
| 1990 | 80° | 56° | 68° | — | — |
| 1989 | 94° | 66° | 80° | — | — |
| 1988 | 82° | 53° | 68° | — | — |
| 1987 | 88° | 65° | 76° | — | — |
| 1986coldest | 72° | 51° | 61° | — | — |
| 1985 | 78° | 64° | 71° | — | — |
| 1984 | 91° | 62° | 77° | — | — |
| 1983 | 80° | 63° | 71° | — | — |
| 1982 | 76° | 57° | 66° | — | — |
| 1981 | 84° | 57° | 71° | — | — |
| 1980 | 85° | 56° | 70° | — | — |
| 1979 | 89° | 58° | 73° | — | — |
| 1978 | 100° | 65° | 82° | — | — |
| 1977 | 81° | 62° | 71° | 0.05" | — |
| 1976 | 80° | 60° | 70° | — | — |
| 1975 | 86° | 56° | 71° | — | — |
| 1974 | 73° | 61° | 67° | — | — |
| 1973 | 100° | 56° | 78° | — | — |
| 1972 | 81° | 58° | 69° | — | — |
| 1971 | 77° | 52° | 64° | — | — |
55 years of data from SAN GABRIEL FIRE DEPT