Rochester, NY All-Time Weather Extremes
The most extreme temperature, precipitation, and snowfall ever recorded in Rochester, from NOAA daily weather observations.
| Temperature | ||
|---|---|---|
| Record High | 98°F (37°C) | July 20, 1978 and July 8, 1988 and July 9, 1988 |
| Record Low | -18.9°F (-28°C) | February 18, 1979 |
| Lowest High | -4°F (-20°C) | January 17, 1982 |
| Highest Low | 78°F (26°C) | August 1, 2006 |
| Highest Mean | 87.0°F (31°C) | July 20, 1978 |
| Lowest Mean | -8.4°F (-22°C) | February 17, 1979 |
| Precipitation | ||
| Max in One Calendar Day | 3.47" (88.1 mm) | September 14, 1979 |
| Max in One Month | 8.02" (203.7 mm) | July 2006 |
| Least in One Month | 0.24" (6.1 mm) | May 2007 |
| Max in One Year | 45.41" (1153.3 mm) | 2017 |
| Least in One Year | 24.69" (627.0 mm) | 1988 |
| Snowfall | ||
| Max in One Calendar Day | 23.0" (58.4 cm) | January 3, 1996 |
| Max in One Month | 61.3" (155.8 cm) | January 2004 |
| Max in One Season | 161.0" (408.9 cm) | 1977-78 |
| Max in One Year | 147.2" (374.0 cm) | 1978 |
| Earliest Snow | 0.1" (0.3 cm) | October 12, 2006 |
| Earliest Measurable Snow | 0.1" (0.3 cm) | October 12, 2006 |
| Latest Snow | 0.4" (1.0 cm) | May 19, 1976 |
| Latest Measurable Snow | 0.4" (1.0 cm) | May 19, 1976 |
| Period of Record | ||
| Temperature | January 1, 1970 – August 1, 2026 | |
| Precipitation | January 1, 1970 – August 1, 2026 | |
| Snowfall | January 1, 1970 – August 1, 2026 | |
Note: Records compiled from NOAA GHCN-Daily observations at ROCHESTER GTR INTL (12 mi from Rochester, NY). 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 Rochester, NY?
The all-time record high in Rochester, NY is 98°F (37°C), set on July 20, 1978 and July 8, 1988 and July 9, 1988.
What is the coldest temperature ever recorded in Rochester, NY?
The all-time record low in Rochester, NY is -18.9°F (-28°C), set on February 18, 1979.
What is the most rain Rochester, NY has ever had in one day?
The most precipitation recorded in one calendar day near Rochester, NY is 3.47 inches, on September 14, 1979.
What is the biggest snowfall ever recorded in Rochester, NY?
The most snow recorded in one calendar day near Rochester, NY is 23.0 inches, on January 3, 1996.
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