Pittsburgh, PA All-Time Weather Extremes
The most extreme temperature, precipitation, and snowfall ever recorded in Pittsburgh, from NOAA daily weather observations.
| Temperature | ||
|---|---|---|
| Record High | 100.9°F (38°C) | July 16, 1988 and July 8, 2012 |
| Record Low | -18.9°F (-28°C) | January 18, 1994 and February 20, 2015 |
| Lowest High | -0.9°F (-18°C) | January 19, 1994 |
| Highest Low | 75.9°F (24°C) | July 22, 1991 |
| Highest Mean | 86.0°F (30°C) | July 8, 2012 |
| Lowest Mean | -7.0°F (-22°C) | January 18, 1994 |
| Precipitation | ||
| Max in One Calendar Day | 4.01" (101.9 mm) | June 23, 1972 |
| Max in One Month | 11.84" (300.8 mm) | September 2018 |
| Least in One Month | 0.16" (4.0 mm) | August 1957 |
| Max in One Year | 51.50" (1308.0 mm) | 2017 |
| Least in One Year | 18.42" (467.9 mm) | 1930 |
| Snowfall | ||
| Max in One Calendar Day | 22.0" (55.9 cm) | November 25, 1950 |
| Max in One Month | 38.5" (97.8 cm) | November 1950 |
| Max in One Season | 60.4" (153.3 cm) | 1950-51 |
| Max in One Year | 53.6" (136.2 cm) | 1950 |
| Earliest Snow | 1.0" (2.5 cm) | November 10, 1987 |
| Earliest Measurable Snow | 1.0" (2.5 cm) | November 10, 1987 |
| Latest Snow | 0.1" (0.3 cm) | April 18, 1951 |
| Latest Measurable Snow | 0.1" (0.3 cm) | April 18, 1951 |
| Period of Record | ||
| Temperature | May 31, 1959 – April 30, 2020 | |
| Precipitation | August 18, 1928 – April 30, 2020 | |
| Snowfall | January 18, 1930 – April 30, 2020 | |
Note: Records compiled from NOAA GHCN-Daily observations at MCKEESPORT (11 mi from Pittsburgh, PA). 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 Pittsburgh, PA?
The all-time record high in Pittsburgh, PA is 100.9°F (38°C), set on July 16, 1988 and July 8, 2012.
What is the coldest temperature ever recorded in Pittsburgh, PA?
The all-time record low in Pittsburgh, PA is -18.9°F (-28°C), set on January 18, 1994 and February 20, 2015.
What is the most rain Pittsburgh, PA has ever had in one day?
The most precipitation recorded in one calendar day near Pittsburgh, PA is 4.01 inches, on June 23, 1972.
What is the biggest snowfall ever recorded in Pittsburgh, PA?
The most snow recorded in one calendar day near Pittsburgh, PA is 22.0 inches, on November 25, 1950.
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