Weather on December 31
Waterbury, CT
55 Years of Data
About This Date
December 31st in Waterbury, CT typically brings cold winter weather, with average highs around 39°F and lows near 24°F. Over 54 years of records, the warmest December 31st was in 2021 (49°F average), while the coldest was 2017 (11°F) — a 38°F range across recorded history. Precipitation has occurred on 43% of recorded December 31st dates, with snow falling 6% of the time. The last decade has been 4.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.0°F warmer on this date compared to 20-30 years ago.
Planning for December 31st in Waterbury, CT? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 34° | 29° | 31° | — | — |
| 2024 | 53° | 35° | 44° | 0.71" | — |
| 2023 | 43° | 29° | 36° | — | — |
| 2022 | 53° | 34° | 43° | 0.97" | — |
| 2021warmest | 51° | 46° | 49° | 0.03" | — |
| 2020 | 43° | 23° | 33° | 0.61" | — |
| 2019 | 38° | 33° | 35° | — | — |
| 2018 | 45° | 32° | 38° | — | — |
| 2017coldest | 18° | 5° | 11° | 0.18" | 1" |
| 2016 | 41° | 21° | 31° | — | — |
| 2015 | 40° | 32° | 36° | 0.43" | — |
| 2014 | 37° | 15° | 26° | — | — |
| 2013 | 41° | 13° | 27° | — | — |
| 2012 | 39° | 28° | 34° | — | — |
| 2011 | 47° | 32° | 39° | 0.05" | — |
| 2010 | 45° | 23° | 34° | — | — |
| 2009 | 35° | 31° | 33° | 0.43" | — |
| 2008 | 32° | 12° | 22° | — | — |
| 2007 | 45° | 25° | 35° | 0.48" | — |
| 2006 | 42° | 29° | 36° | — | — |
| 2005 | 31° | 25° | 28° | 0.36" | — |
| 2004 | 47° | 23° | 35° | — | — |
| 2003 | 43° | 34° | 38° | — | — |
| 2002 | 44° | 34° | 39° | 0.13" | — |
| 2001 | 32° | 21° | 27° | — | — |
| 2000 | 30° | 17° | 24° | — | — |
| 1999 | 38° | 21° | 29° | — | — |
| 1997 | 37° | 27° | 32° | 0.15" | — |
| 1996 | 38° | 18° | 28° | 0.1" | 1" |
| 1995 | 39° | 18° | 28° | — | — |
| 1994 | 35° | 17° | 26° | 0.05" | — |
| 1993 | 29° | 5° | 17° | — | — |
| 1992 | 44° | 37° | 41° | 1.42" | — |
| 1991 | 36° | 18° | 27° | — | — |
| 1990 | 49° | 30° | 39° | 0.03" | — |
| 1989 | 37° | 14° | 26° | 0.38" | — |
| 1988 | 41° | 21° | 31° | — | — |
| 1987 | 43° | 6° | 24° | — | — |
| 1986 | 40° | 31° | 35° | 0.43" | 0.8" |
| 1985 | 47° | 27° | 37° | — | — |
| 1984 | 45° | 24° | 34° | — | — |
| 1983 | 34° | 6° | 20° | — | — |
| 1982 | 36° | 25° | 30° | — | — |
| 1981 | 33° | 19° | 26° | — | — |
| 1980 | 28° | 8° | 18° | — | — |
| 1979 | 43° | 19° | 31° | — | — |
| 1978 | 40° | 28° | 34° | 0.15" | — |
| 1977 | 42° | 31° | 36° | — | — |
| 1976 | 20° | 13° | 16° | — | — |
| 1975 | 43° | 30° | 36° | 1.24" | — |
| 1974 | 43° | 24° | 33° | — | — |
| 1973 | 37° | 26° | 32° | 0.08" | — |
| 1972 | 33° | 27° | 30° | 1.27" | — |
| 1971 | 38° | 18° | 28° | 0.36" | — |
Waterbury, CT Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Waterbury, CT Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Waterbury, CT Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Waterbury, CT
Waterbury, CT has no months that meet our "pleasant" threshold — every season has tradeoffs.