Waterbury, CT All-Time Weather Extremes
The most extreme temperature, precipitation, and snowfall ever recorded in Waterbury, from NOAA daily weather observations.
| Temperature | ||
|---|---|---|
| Record High | 104°F (40°C) | July 4, 1949 |
| Record Low | -23.9°F (-31°C) | February 16, 1943 |
| Lowest High | 8.9°F (-13°C) | January 16, 1965 |
| Highest Low | 80°F (27°C) | July 7, 1999 |
| Highest Mean | 90.5°F (32°C) | July 7, 1999 |
| Lowest Mean | -4.5°F (-20°C) | February 16, 1943 |
| Precipitation | ||
| Max in One Calendar Day | 6.70" (170.2 mm) | September 12, 1960 |
| Max in One Month | 17.75" (450.8 mm) | September 1975 |
| Least in One Month | 0.00" (0.0 mm) | March 2000 |
| Max in One Year | 88.52" (2248.3 mm) | 1975 |
| Least in One Year | 29.85" (758.1 mm) | 1965 |
| Snowfall | ||
| Max in One Calendar Day | 19.4" (49.3 cm) | February 7, 1978 |
| Max in One Month | 52.0" (132.1 cm) | January 2011 |
| Max in One Season | 70.9" (180.2 cm) | 2002-03 |
| Max in One Year | 67.4" (171.1 cm) | 1978 |
| Earliest Snow | 2.1" (5.3 cm) | October 10, 1979 |
| Earliest Measurable Snow | 2.1" (5.3 cm) | October 10, 1979 |
| Latest Snow | 0.1" (0.3 cm) | April 22, 1947 |
| Latest Measurable Snow | 0.1" (0.3 cm) | April 22, 1947 |
| Period of Record | ||
| Temperature | February 1, 1936 – December 31, 2021 | |
| Precipitation | February 1, 1936 – December 31, 2021 | |
| Snowfall | February 1, 1936 – December 31, 2021 | |
Note: Records compiled from NOAA GHCN-Daily observations at MT CARMEL (3 mi from Waterbury, CT). 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 Waterbury, CT?
The all-time record high in Waterbury, CT is 104°F (40°C), set on July 4, 1949.
What is the coldest temperature ever recorded in Waterbury, CT?
The all-time record low in Waterbury, CT is -23.9°F (-31°C), set on February 16, 1943.
What is the most rain Waterbury, CT has ever had in one day?
The most precipitation recorded in one calendar day near Waterbury, CT is 6.70 inches, on September 12, 1960.
What is the biggest snowfall ever recorded in Waterbury, CT?
The most snow recorded in one calendar day near Waterbury, CT is 19.4 inches, on February 7, 1978.
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