San Leandro, CA All-Time Weather Extremes
The most extreme temperature, precipitation, and snowfall ever recorded in San Leandro, from NOAA daily weather observations.
| Temperature | ||
|---|---|---|
| Record High | 104°F (40°C) | September 6, 2020 |
| Record Low | 26°F (-3°C) | December 9, 1972 and December 11, 1972 |
| Lowest High | 37.9°F (3°C) | December 9, 1972 |
| Highest Low | 69°F (21°C) | August 14, 2020 |
| Highest Mean | 85°F (29°C) | September 6, 2020 |
| Lowest Mean | 31.9°F (0°C) | December 9, 1972 |
| Precipitation | ||
| Max in One Calendar Day | 5.01" (127.3 mm) | December 31, 2022 |
| Max in One Month | 11.50" (292.2 mm) | December 2022 |
| Least in One Month | 0.00" (0.0 mm) | September 1979 |
| Max in One Year | 29.38" (746.2 mm) | 1973 |
| Least in One Year | 4.89" (124.2 mm) | 2013 |
| Snowfall | ||
| Max in One Calendar Day | 1.0" (2.5 cm) | February 5, 1976 |
| Max in One Month | 1.0" (2.5 cm) | February 1976 |
| Max in One Season | 1.0" (2.5 cm) | 1975-76 |
| Max in One Year | 1.0" (2.5 cm) | 1976 |
| Earliest Snow | 1.0" (2.5 cm) | February 5, 1976 |
| Earliest Measurable Snow | 1.0" (2.5 cm) | February 5, 1976 |
| Latest Snow | 1.0" (2.5 cm) | February 5, 1976 |
| Latest Measurable Snow | 1.0" (2.5 cm) | February 5, 1976 |
| Period of Record | ||
| Temperature | January 1, 1970 – August 1, 2026 | |
| Precipitation | January 1, 1970 – August 1, 2026 | |
| Snowfall | January 1, 1970 – May 25, 2020 | |
Note: Records compiled from NOAA GHCN-Daily observations at OAKLAND INTL AP (4 mi from San Leandro, 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 San Leandro, CA?
The all-time record high in San Leandro, CA is 104°F (40°C), set on September 6, 2020.
What is the coldest temperature ever recorded in San Leandro, CA?
The all-time record low in San Leandro, CA is 26°F (-3°C), set on December 9, 1972 and December 11, 1972.
What is the most rain San Leandro, CA has ever had in one day?
The most precipitation recorded in one calendar day near San Leandro, CA is 5.01 inches, on December 31, 2022.
What is the biggest snowfall ever recorded in San Leandro, CA?
The most snow recorded in one calendar day near San Leandro, CA is 1.0 inches, on February 5, 1976.
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