San Jose, CA All-Time Weather Extremes
The most extreme temperature, precipitation, and snowfall ever recorded in San Jose, from NOAA daily weather observations.
| Temperature | ||
|---|---|---|
| Record High | 109°F (43°C) | June 14, 2000 and September 6, 2022 |
| Record Low | 17.9°F (-8°C) | January 6, 1894 |
| Lowest High | 35°F (2°C) | December 11, 1932 |
| Highest Low | 73.9°F (23°C) | July 22, 2006 and September 6, 2022 |
| Highest Mean | 91.5°F (33°C) | September 6, 2022 |
| Lowest Mean | 28.4°F (-2°C) | December 22, 1990 |
| Precipitation | ||
| Max in One Calendar Day | 4.32" (109.7 mm) | September 12, 1918 |
| Max in One Month | 12.38" (314.5 mm) | January 1911 |
| Least in One Month | 0.00" (0.0 mm) | June 1893 |
| Max in One Year | 32.57" (827.4 mm) | 1983 |
| Least in One Year | 5.19" (131.8 mm) | 2020 |
| Snowfall | ||
| Max in One Calendar Day | 1.0" (2.5 cm) | December 11, 1932 |
| Max in One Month | 1.0" (2.5 cm) | December 1932 |
| Max in One Season | 1.1" (2.8 cm) | 1929-30 |
| Max in One Year | 1.1" (2.8 cm) | 1930 |
| Earliest Snow | 1.0" (2.5 cm) | December 11, 1932 |
| Earliest Measurable Snow | 1.0" (2.5 cm) | December 11, 1932 |
| Latest Snow | 0.1" (0.3 cm) | March 12, 1969 |
| Latest Measurable Snow | 0.1" (0.3 cm) | March 12, 1969 |
| Period of Record | ||
| Temperature | January 1, 1893 – October 29, 2026 | |
| Precipitation | January 1, 1893 – October 29, 2026 | |
| Snowfall | February 7, 1909 – December 15, 2021 | |
Note: Records compiled from NOAA GHCN-Daily observations at SAN JOSE (3 mi from San Jose, 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 Jose, CA?
The all-time record high in San Jose, CA is 109°F (43°C), set on June 14, 2000 and September 6, 2022.
What is the coldest temperature ever recorded in San Jose, CA?
The all-time record low in San Jose, CA is 17.9°F (-8°C), set on January 6, 1894.
What is the most rain San Jose, CA has ever had in one day?
The most precipitation recorded in one calendar day near San Jose, CA is 4.32 inches, on September 12, 1918.
What is the biggest snowfall ever recorded in San Jose, CA?
The most snow recorded in one calendar day near San Jose, CA is 1.0 inches, on December 11, 1932.
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