Riverside, CA All-Time Weather Extremes
The most extreme temperature, precipitation, and snowfall ever recorded in Riverside, from NOAA daily weather observations.
| Temperature | ||
|---|---|---|
| Record High | 116°F (47°C) | September 6, 2020 |
| Record Low | 19.2°F (-7°C) | February 5, 2020 |
| Lowest High | 44.9°F (7°C) | February 23, 2023 |
| Highest Low | 78.9°F (26°C) | August 17, 2012 |
| Highest Mean | 93.5°F (34°C) | September 3, 2022 |
| Lowest Mean | 36.0°F (2°C) | January 11, 2013 and January 12, 2013 and January 13, 2013 |
| Precipitation | ||
| Max in One Calendar Day | 2.27" (57.7 mm) | August 30, 2012 |
| Max in One Month | 5.82" (147.8 mm) | February 2024 |
| Least in One Month | 0.00" (0.0 mm) | June 2022 |
| Max in One Year | 13.44" (341.3 mm) | 2023 |
| Least in One Year | 3.43" (87.2 mm) | 2013 |
| Period of Record | ||
| Temperature | January 1, 1970 – July 31, 2026 | |
| Precipitation | January 1, 1970 – July 31, 2026 | |
| Snowfall | January 1, 1970 – July 30, 2026 | |
Note: Records compiled from NOAA GHCN-Daily observations at MARCH AFB (9 mi from Riverside, 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 Riverside, CA?
The all-time record high in Riverside, CA is 116°F (47°C), set on September 6, 2020.
What is the coldest temperature ever recorded in Riverside, CA?
The all-time record low in Riverside, CA is 19.2°F (-7°C), set on February 5, 2020.
What is the most rain Riverside, CA has ever had in one day?
The most precipitation recorded in one calendar day near Riverside, CA is 2.27 inches, on August 30, 2012.
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Riverside Weather History
Monthly averages, records, and climate data for Riverside
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