Weather on December 20
Stamford, CT
55 Years of Data
Avg High
39°F
Avg Low
23°F
Warmest
2002
47°F avg
Coldest
1980
12°F avg
About This Date
December 20th in Stamford, CT typically brings cold winter weather, with average highs around 39°F and lows near 23°F. Over 55 years of records, the warmest December 20th was in 2002 (47°F average), while the coldest was 1980 (12°F) — a 35°F range across recorded history. Precipitation has occurred on 31% of recorded December 20th dates, with snow falling 9% of the time (heaviest snowfall: 9"). The last decade has been 4.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.6°F cooler on this date compared to 20-30 years ago.
Planning for December 20th in Stamford, CT? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 38° | 29° | 33° | — | — |
| 2024 | 34° | 31° | 33° | 0.08" | — |
| 2023 | 43° | 26° | 35° | — | — |
| 2022 | 38° | 24° | 31° | — | — |
| 2021 | 35° | 20° | 28° | — | — |
| 2020 | 34° | 22° | 28° | — | — |
| 2019 | 29° | 14° | 21° | — | — |
| 2018 | 46° | 27° | 36° | 0.36" | — |
| 2017 | 51° | — | — | — | — |
| 2016 | 31° | 11° | 21° | — | — |
| 2015 | 41° | 33° | 37° | — | — |
| 2014 | 37° | 24° | 31° | — | — |
| 2013 | 51° | 27° | 39° | — | — |
| 2012 | 47° | 23° | 35° | — | — |
| 2011 | 46° | 38° | 42° | — | — |
| 2010 | 34° | 23° | 29° | — | — |
| 2009 | 31° | 19° | 25° | — | — |
| 2008 | 27° | 19° | 23° | — | — |
| 2007 | 44° | 29° | 36° | 0.38" | — |
| 2006 | 47° | 22° | 34° | — | — |
| 2005 | 33° | 18° | 25° | — | — |
| 2004 | 40° | 11° | 25° | 0.51" | 1" |
| 2003 | 39° | 19° | 29° | — | — |
| 2002warmest | 56° | 38° | 47° | 2.69" | — |
| 2001 | 47° | 31° | 39° | — | — |
| 2000 | 35° | 28° | 32° | 0.36" | 1.2" |
| 1999 | 46° | 25° | 35° | 0.81" | — |
| 1998 | 48° | 35° | 42° | — | — |
| 1997 | 47° | 29° | 38° | — | — |
| 1996 | 40° | 21° | 30° | — | — |
| 1995 | 22° | 16° | 19° | 2.16" | 9" |
| 1994 | 44° | 20° | 32° | — | — |
| 1993 | 38° | 23° | 30° | — | — |
| 1992 | 47° | 37° | 42° | 0.33" | — |
| 1991 | 36° | 11° | 23° | — | — |
| 1990 | 40° | 25° | 32° | — | — |
| 1989 | 32° | 10° | 21° | — | — |
| 1988 | 46° | 18° | 32° | — | — |
| 1987 | 46° | 25° | 35° | 0.97" | — |
| 1986 | 44° | 27° | 35° | — | — |
| 1985 | 30° | 8° | 19° | — | — |
| 1984 | 50° | 28° | 39° | 0.05" | — |
| 1983 | 25° | 11° | 18° | — | — |
| 1982 | 36° | 30° | 33° | — | — |
| 1981 | 26° | 14° | 20° | — | — |
| 1980coldest | 25° | 0° | 12° | — | — |
| 1979 | 36° | 15° | 25° | 0.05" | 0.3" |
| 1978 | 34° | 20° | 27° | — | — |
| 1977 | 39° | 31° | 35° | — | — |
| 1976 | 47° | 22° | 34° | 0.05" | — |
| 1975 | 25° | 10° | 17° | 0.13" | 0.8" |
| 1974 | 43° | 29° | 36° | — | — |
| 1973 | 43° | 15° | 29° | 0.15" | — |
| 1972 | 39° | 32° | 36° | 0.64" | — |
| 1971 | 41° | 27° | 34° | 0.05" | — |
55 years of data from STAMFORD 5 N