Weather on September 17
El Monte, CA
55 Years of Data
About This Date
September 17th in El Monte, CA typically brings warm fall weather, with average highs around 86°F and lows near 62°F. Over 55 years of records, the warmest September 17th was in 1984 (88°F average), while the coldest was 2024 (66°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 17th dates historically. The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
Planning for September 17th in El Monte, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 92° | 66° | 79° | — | — |
| 2024coldest | 77° | 56° | 66° | — | — |
| 2023 | 71° | 62° | 67° | — | — |
| 2022 | 81° | 61° | 71° | — | — |
| 2021 | 80° | 56° | 68° | — | — |
| 2020 | 100° | 76° | 88° | — | — |
| 2019 | 85° | 60° | 72° | — | — |
| 2018 | 88° | 63° | 75° | — | — |
| 2017 | 75° | 61° | 68° | — | — |
| 2016 | 93° | 54° | 73° | — | — |
| 2015 | 82° | 60° | 71° | — | — |
| 2014 | 97° | 73° | 85° | — | — |
| 2013 | 82° | 62° | 72° | — | — |
| 2012 | 85° | 67° | 76° | — | — |
| 2011 | 82° | 57° | 70° | — | — |
| 2010 | 83° | 60° | 71° | — | — |
| 2009 | 91° | 62° | 77° | — | — |
| 2008 | 86° | 65° | 75° | — | — |
| 2007 | 75° | 60° | 68° | — | — |
| 2006 | 93° | 61° | 77° | — | — |
| 2005 | 78° | 55° | 67° | — | — |
| 2004 | 84° | 62° | 73° | — | — |
| 2003 | 88° | 61° | 74° | — | — |
| 2002 | 84° | 59° | 72° | — | — |
| 2001 | 83° | 62° | 72° | — | — |
| 2000 | 103° | 64° | 83° | — | — |
| 1999 | 82° | 57° | 70° | — | — |
| 1998 | 87° | 60° | 74° | — | — |
| 1997 | 96° | 69° | 83° | — | — |
| 1996 | 85° | 57° | 71° | — | — |
| 1995 | 94° | 65° | 79° | — | — |
| 1994 | 90° | 63° | 76° | — | — |
| 1993 | 77° | 64° | 71° | — | — |
| 1992 | 95° | 63° | 79° | — | — |
| 1991 | 92° | 57° | 74° | — | — |
| 1990 | 85° | 65° | 75° | — | — |
| 1989 | 86° | 64° | 75° | 0.48" | — |
| 1988 | 79° | 60° | 69° | — | — |
| 1987 | 87° | 64° | 76° | — | — |
| 1986 | 86° | 55° | 71° | — | — |
| 1985 | 80° | 62° | 71° | — | — |
| 1984warmest | 102° | 74° | 88° | — | — |
| 1983 | 94° | 67° | 80° | — | — |
| 1982 | 78° | 56° | 67° | — | — |
| 1981 | 98° | 62° | 80° | — | — |
| 1980 | 97° | 63° | 80° | — | — |
| 1979 | 97° | 64° | 80° | — | — |
| 1978 | 76° | 60° | 68° | — | — |
| 1977 | 79° | 55° | 67° | — | — |
| 1976 | 79° | 58° | 68° | — | — |
| 1975 | 95° | 68° | 82° | — | — |
| 1974 | 85° | 55° | 70° | — | — |
| 1973 | 81° | 54° | 67° | — | — |
| 1972 | 81° | 53° | 67° | — | — |
| 1971 | 77° | 68° | 73° | — | — |
El Monte, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
El Monte, CA Monthly Precipitation
Average rainfall per month, in inches.
El Monte, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit El Monte, CA
El Monte, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.