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 | 102.9°F (39°C) | July 15, 1995 and July 16, 1995 |
| Record Low | -14.9°F (-26°C) | January 12, 1981 |
| Lowest High | 10.9°F (-12°C) | January 18, 1977 and January 4, 1981 and January 22, 2019 |
| Highest Low | 77°F (25°C) | July 5, 1990 |
| Highest Mean | 87.0°F (31°C) | July 21, 1980 |
| Lowest Mean | -0.5°F (-18°C) | January 12, 1981 |
| Precipitation | ||
| Max in One Calendar Day | 6.00" (152.4 mm) | September 26, 2018 |
| Max in One Month | 17.75" (450.8 mm) | September 1975 |
| Least in One Month | 0.33" (8.4 mm) | November 1976 |
| Max in One Year | 88.52" (2248.3 mm) | 1975 |
| Least in One Year | 34.98" (888.5 mm) | 1970 |
| Snowfall | ||
| Max in One Calendar Day | 19.4" (49.3 cm) | February 7, 1978 |
| Max in One Month | 25.8" (65.5 cm) | February 1978 |
| Max in One Season | 64.1" (162.8 cm) | 1977-78 |
| 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 | 6.0" (15.2 cm) | April 10, 1996 |
| Latest Measurable Snow | 6.0" (15.2 cm) | April 10, 1996 |
| Period of Record | ||
| Temperature | January 1, 1970 – December 31, 2020 | |
| Precipitation | January 1, 1970 – December 31, 2020 | |
| Snowfall | January 1, 1970 – December 31, 2020 | |
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.
Shareable Image Version
Frequently Asked Questions
What is the hottest temperature ever recorded in Waterbury, CT?
The all-time record high in Waterbury, CT is 102.9°F (39°C), set on July 15, 1995 and July 16, 1995.
What is the coldest temperature ever recorded in Waterbury, CT?
The all-time record low in Waterbury, CT is -14.9°F (-26°C), set on January 12, 1981.
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 6.00 inches, on September 26, 2018.
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.
Look Up Extremes by ZIP Code
See the all-time weather extremes for any US location
Waterbury Weather History
Monthly averages, records, and climate data for Waterbury
Connecticut Weather Extremes
Statewide records and extremes for other Connecticut cities