Weather on December 20
Hartford, CT
55 Years of Data
Avg High
37°F
Avg Low
22°F
Warmest
2002
49°F avg
Coldest
2004
12°F avg
About This Date
December 20th in Hartford, CT typically brings cold winter weather, with average highs around 37°F and lows near 22°F. Over 55 years of records, the warmest December 20th was in 2002 (49°F average), while the coldest was 2004 (12°F) — a 37°F range across recorded history. Precipitation has occurred on 36% of recorded December 20th dates, with snow falling 4% of the time (heaviest snowfall: 2"). Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 20th in Hartford, CT? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella.
Warming Trend
1.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 38° | 30° | 34° | — | — |
| 2024 | 34° | 29° | 32° | 0.03" | — |
| 2023 | 45° | 29° | 37° | — | — |
| 2022 | 40° | 26° | 33° | — | — |
| 2021 | 34° | 20° | 27° | — | — |
| 2020 | 32° | 22° | 27° | 0.15" | — |
| 2019 | 33° | 17° | 25° | — | — |
| 2018 | 47° | 23° | 35° | 0.2" | — |
| 2017 | 48° | 32° | 40° | — | — |
| 2016 | 30° | 8° | 19° | — | — |
| 2015 | 43° | 31° | 37° | — | — |
| 2014 | 33° | 26° | 30° | — | — |
| 2013 | 51° | 26° | 39° | — | — |
| 2012 | 44° | 27° | 36° | 0.25" | — |
| 2011 | 47° | 32° | 39° | — | — |
| 2010 | 35° | 24° | 30° | — | — |
| 2009 | 29° | 21° | 25° | 0.23" | — |
| 2008 | 20° | 17° | 19° | 0.03" | — |
| 2007 | 41° | 29° | 35° | — | — |
| 2006 | 45° | 22° | 34° | — | — |
| 2005 | 32° | 19° | 26° | — | — |
| 2004coldest | 21° | 4° | 12° | 0.1" | — |
| 2003 | 37° | 24° | 31° | — | — |
| 2002warmest | 59° | 40° | 49° | 4.32" | — |
| 2001 | 45° | 30° | 37° | — | — |
| 2000 | 34° | 24° | 29° | 0.48" | — |
| 1999 | 42° | 24° | 33° | 2.34" | — |
| 1998 | 47° | 35° | 41° | — | — |
| 1997 | 47° | 28° | 37° | — | — |
| 1996 | 41° | 3° | 22° | 0.08" | — |
| 1995 | 26° | 15° | 21° | 0.25" | 2" |
| 1994 | 41° | 21° | 31° | — | — |
| 1993 | 36° | 26° | 31° | 0.66" | — |
| 1992 | 46° | 26° | 36° | 0.05" | — |
| 1991 | 32° | 20° | 26° | 0.13" | — |
| 1990 | 50° | 29° | 39° | — | — |
| 1989 | 23° | 5° | 14° | — | — |
| 1988 | 38° | 15° | 26° | — | — |
| 1987 | 40° | 28° | 34° | 0.3" | — |
| 1986 | 47° | 36° | 41° | — | — |
| 1985 | 25° | 3° | 14° | — | — |
| 1984 | 37° | 25° | 31° | 1.27" | — |
| 1983 | 30° | 6° | 18° | — | — |
| 1982 | 30° | 25° | 27° | — | 0.3" |
| 1981 | 28° | 13° | 20° | — | — |
| 1980 | 35° | 4° | 19° | — | — |
| 1979 | 16° | 11° | 13° | — | — |
| 1978 | 35° | 21° | 28° | — | — |
| 1977 | 38° | 29° | 33° | — | — |
| 1976 | 40° | 18° | 29° | — | — |
| 1975 | 22° | 10° | 16° | — | — |
| 1974 | 38° | 29° | 33° | 0.03" | — |
| 1973 | 23° | 9° | 16° | — | — |
| 1972 | 36° | 24° | 30° | 0.18" | — |
| 1971 | 29° | 23° | 26° | 0.05" | — |
55 years of data from HARTFORD BRAINARD FLD