Weather on May 20
Hartford, CT
55 Years of Data
Avg High
71°F
Avg Low
49°F
Warmest
1986
74°F avg
Coldest
1976
45°F avg
About This Date
May 20th in Hartford, CT typically brings pleasant spring weather, with average highs around 71°F and lows near 49°F. Over 55 years of records, the warmest May 20th was in 1986 (74°F average), while the coldest was 1976 (45°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 38% of May 20th dates historically, with the wettest May 20th recording 4.09" of rain. The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.8°F warmer on this date compared to 20-30 years ago.
Planning for May 20th in Hartford, CT? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 62° | 46° | 54° | — | — |
| 2024 | 79° | 54° | 66° | — | — |
| 2023 | 67° | 50° | 58° | 4.09" | — |
| 2022 | 74° | 52° | 63° | 0.1" | — |
| 2021 | 80° | 51° | 66° | — | — |
| 2020 | 72° | 45° | 58° | — | — |
| 2019 | 85° | 64° | 74° | 1.17" | — |
| 2018 | 83° | 55° | 69° | 0.05" | — |
| 2017 | 72° | 50° | 61° | — | — |
| 2016 | 77° | 47° | 62° | — | — |
| 2015 | 62° | 50° | 56° | — | — |
| 2014 | 75° | 45° | 60° | — | — |
| 2013 | 83° | 57° | 70° | 0.03" | — |
| 2012 | 84° | 51° | 68° | — | — |
| 2011 | 72° | 53° | 62° | 0.03" | — |
| 2010 | 84° | 51° | 68° | — | — |
| 2009 | 85° | 48° | 66° | — | — |
| 2008 | 62° | 39° | 51° | 0.08" | — |
| 2007 | 75° | 51° | 63° | 0.15" | — |
| 2006 | 66° | 47° | 56° | — | — |
| 2005 | 62° | 45° | 53° | — | — |
| 2004 | 73° | 48° | 61° | — | — |
| 2003 | 81° | 46° | 63° | — | — |
| 2002 | 58° | 33° | 45° | — | — |
| 2001 | 72° | 51° | 61° | — | — |
| 2000 | 55° | 44° | 50° | 0.61" | — |
| 1999 | 70° | 52° | 61° | 3.53" | — |
| 1998 | 82° | 54° | 68° | — | — |
| 1997 | 65° | 39° | 52° | 0.03" | — |
| 1996 | 85° | 54° | 69° | — | — |
| 1995 | 74° | 44° | 59° | — | — |
| 1994 | 64° | 40° | 52° | — | — |
| 1993 | 58° | 44° | 51° | 0.1" | — |
| 1992 | 81° | 47° | 64° | — | — |
| 1991 | 67° | 45° | 56° | — | — |
| 1990 | 64° | 48° | 56° | 0.05" | — |
| 1989 | 86° | 53° | 70° | — | — |
| 1988 | 58° | 53° | 55° | 1.02" | — |
| 1987 | 64° | 48° | 56° | — | — |
| 1986warmest | 87° | 61° | 74° | — | — |
| 1985 | 62° | 45° | 53° | 0.13" | — |
| 1984 | 66° | 45° | 55° | 0.41" | — |
| 1983 | 66° | 44° | 55° | 0.08" | — |
| 1982 | 78° | 58° | 68° | — | — |
| 1981 | 69° | 40° | 54° | — | — |
| 1980 | 77° | 57° | 67° | 0.03" | — |
| 1979 | 65° | 52° | 58° | 0.1" | — |
| 1978 | 71° | 48° | 60° | — | — |
| 1977 | 66° | 51° | 59° | — | — |
| 1976coldest | 50° | 39° | 45° | 0.91" | — |
| 1975 | 84° | 59° | 72° | — | — |
| 1974 | 72° | 40° | 56° | — | — |
| 1973 | 69° | 49° | 59° | — | — |
| 1972 | 56° | 50° | 53° | 1.7" | — |
| 1971 | 76° | 50° | 63° | — | — |
55 years of data from HARTFORD BRAINARD FLD