El Monte, CA All-Time Weather Extremes
The most extreme temperature, precipitation, and snowfall ever recorded in El Monte, from NOAA daily weather observations.
| Temperature | ||
|---|---|---|
| Record High | 114.9°F (46°C) | September 6, 2020 |
| Record Low | 21°F (-6°C) | January 7, 1913 |
| Lowest High | 41°F (5°C) | December 12, 1932 and January 22, 1962 |
| Highest Low | 82.9°F (28°C) | September 3, 2007 and September 17, 2014 and September 4, 2022 |
| Highest Mean | 98.5°F (37°C) | September 6, 2020 |
| Lowest Mean | 33.5°F (1°C) | January 23, 1937 |
| Precipitation | ||
| Max in One Calendar Day | 7.70" (195.6 mm) | March 2, 1938 |
| Max in One Month | 19.70" (500.4 mm) | February 1980 |
| Least in One Month | 0.00" (0.0 mm) | August 1893 |
| Max in One Year | 48.48" (1231.3 mm) | 1983 |
| Least in One Year | 5.38" (136.6 mm) | 1947 |
| Snowfall | ||
| Max in One Calendar Day | 3.0" (7.6 cm) | January 11, 1949 |
| Max in One Month | 3.0" (7.6 cm) | January 1949 |
| Max in One Season | 3.0" (7.6 cm) | 1948-49 |
| Max in One Year | 3.0" (7.6 cm) | 1949 |
| Earliest Snow | 3.0" (7.6 cm) | January 11, 1949 |
| Earliest Measurable Snow | 3.0" (7.6 cm) | January 11, 1949 |
| Latest Snow | 1.0" (2.5 cm) | January 15, 1932 |
| Latest Measurable Snow | 1.0" (2.5 cm) | January 15, 1932 |
| Period of Record | ||
| Temperature | January 1, 1893 – July 29, 2026 | |
| Precipitation | January 1, 1893 – July 29, 2026 | |
| Snowfall | January 1, 1893 – December 31, 2010 | |
Note: Records compiled from NOAA GHCN-Daily observations at PASADENA (8 mi from El Monte, CA). Quality-flagged readings are excluded. Monthly and annual totals require substantially complete reporting for “least” records.
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Frequently Asked Questions
What is the hottest temperature ever recorded in El Monte, CA?
The all-time record high in El Monte, CA is 114.9°F (46°C), set on September 6, 2020.
What is the coldest temperature ever recorded in El Monte, CA?
The all-time record low in El Monte, CA is 21°F (-6°C), set on January 7, 1913.
What is the most rain El Monte, CA has ever had in one day?
The most precipitation recorded in one calendar day near El Monte, CA is 7.70 inches, on March 2, 1938.
What is the biggest snowfall ever recorded in El Monte, CA?
The most snow recorded in one calendar day near El Monte, CA is 3.0 inches, on January 11, 1949.
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