Dietmar Rabich / CC BY-SA 4.0
El Monte, CA Weather on September 10
September 10th in El Monte, CA typically brings warm fall weather, with average highs around 88°F and lows near 63°F — a 25°F daily swing. Over 55 years of records, the warmest September 10th was in 1983 (90°F average), while the coldest was 1985 (66°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 10th dates historically, with the wettest September 10th recording 1.2" of rain. Temperatures on this date have remained relatively stable over the past several decades.
What to Expect on September 10
Planning for September 10th in El Monte, CA? Stay hydrated and seek shade during peak afternoon hours.
September 10 Weather Records for El Monte
- •The all-time record high for September 10th in El Monte, CA is 107°F, set in 1983.
- •The coldest September 10th on record dropped to 52°F in 2000.
- •Temperatures have reached 90°F or higher on September 10th in 24 of the last 55 years.
- •Last year (1971), September 10th was 9°F warmer than the long-term average.
Frequently Asked Questions
What was the warmest September 10 ever in El Monte?
The warmest September 10 in El Monte, CA reached 107°F in 1983. That is 19°F above the long-term average high of 88°F.
What was the coldest September 10 ever in El Monte?
The coldest September 10 in El Monte, CA dropped to 52°F in 2000. That is 11°F below the long-term average low of 63°F.
What is the average temperature on September 10 in El Monte?
On September 10, El Monte averages a high of 88°F and a low of 63°F based on 55 years of NOAA weather observations from SAN GABRIEL FIRE DEPT.
How many years of weather data are available for September 10 in El Monte?
We have 55 years of weather records for September 10 in El Monte, CA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
September 10 Weather History in El Monte
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 83°F | 61°F | -- | -- |
| 2024 | 93°F | 64°F | -- | -- |
| 2023 | 96°F | 68°F | -- | -- |
| 2022 | 77°F | 68°F | -- | -- |
| 2021 | 92°F | 68°F | -- | -- |
| 2020 | 85°F | 66°F | -- | -- |
| 2019 | 79°F | 60°F | -- | -- |
| 2018 | 86°F | 61°F | -- | -- |
| 2017 | 95°F | 66°F | -- | -- |
| 2016 | 94°F | 57°F | -- | -- |
| 2015 | 98°F | 75°F | -- | -- |
| 2014 | 92°F | 62°F | -- | -- |
| 2013 | 81°F | 62°F | 0" | -- |
| 2012 | 90°F | 73°F | 0" | -- |
| 2011 | 85°F | 58°F | -- | -- |
| 2010 | 83°F | 55°F | 0" | -- |
| 2009 | 96°F | 66°F | -- | -- |
| 2008 | 81°F | 64°F | 0" | -- |
| 2007 | 85°F | 63°F | 0" | -- |
| 2006 | 83°F | 61°F | 0" | -- |
| 2005 | 72°F | 63°F | 0" | -- |
| 2004 | 97°F | 68°F | 0" | -- |
| 2003 | 85°F | 65°F | 0" | -- |
| 2002 | 91°F | 87°F | 0" | -- |
| 2001 | 81°F | 57°F | 0" | -- |
| 2000 | 91°F | 52°F | 0" | -- |
| 1999 | 88°F | 59°F | 0" | -- |
| 1998 | 87°F | 65°F | 0" | -- |
| 1997 | 95°F | 67°F | 0" | -- |
| 1996 | 95°F | 60°F | 0" | -- |
| 1995 | 89°F | 56°F | 0" | -- |
| 1994 | 93°F | 58°F | 0" | -- |
| 1993 | 96°F | 61°F | 0" | -- |
| 1992 | 87°F | 62°F | 0" | -- |
| 1991 | 78°F | 59°F | 0" | -- |
| 1990 | 104°F | 61°F | 0" | -- |
| 1989 | 82°F | 56°F | 0" | -- |
| 1988 | 83°F | 56°F | 0" | -- |
| 1987 | 88°F | 57°F | 0" | -- |
| 1986 | 83°F | 63°F | 0" | -- |
| 1985 | 76°F | 56°F | 0" | -- |
| 1984 | 91°F | 76°F | 0" | -- |
| 1983 | 107°F | 73°F | 0" | -- |
| 1982 | 85°F | 68°F | 0" | -- |
| 1981 | 89°F | 60°F | 0" | -- |
| 1980 | 79°F | 59°F | 0" | -- |
| 1979 | 102°F | 66°F | 0" | -- |
| 1978 | 90°F | 56°F | 0" | -- |
| 1977 | 88°F | 64°F | 0" | -- |
| 1976 | 90°F | 69°F | 1.2" | -- |
| 1975 | 76°F | 60°F | 0" | -- |
| 1974 | 90°F | 65°F | 0" | -- |
| 1973 | 78°F | 62°F | 0" | -- |
| 1972 | 75°F | 65°F | 0" | -- |
| 1971 | 97°F | 64°F | 0" | -- |
Based on 55 years of data from NOAA station: SAN GABRIEL FIRE DEPT
Monthly Climate Averages
Historical temperature and precipitation averages for El Monte, CA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.