Weather on May 15
Hartford, CT
55 Years of Data
Avg High
71°F
Avg Low
49°F
Warmest
2004
73°F avg
Coldest
1984
47°F avg
About This Date
May 15th 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 15th was in 2004 (73°F average), while the coldest was 1984 (47°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 35% of May 15th dates historically, with the wettest May 15th recording 3.94" of rain. The last decade has been 6.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.4°F warmer on this date compared to 20-30 years ago.
Planning for May 15th in Hartford, CT? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 62° | 68° | 0.46" | — |
| 2024 | 66° | 60° | 63° | 1.02" | — |
| 2023 | 76° | 41° | 58° | — | — |
| 2022 | 82° | 65° | 73° | 0.15" | — |
| 2021 | 79° | 48° | 63° | — | — |
| 2020 | 81° | 54° | 67° | 2.21" | — |
| 2019 | 67° | 46° | 56° | 0.13" | — |
| 2018 | 82° | 58° | 70° | 1.78" | — |
| 2017 | 66° | 52° | 59° | 0.15" | — |
| 2016 | 60° | 46° | 53° | — | — |
| 2015 | 74° | 45° | 59° | — | — |
| 2014 | 76° | 59° | 67° | 0.25" | — |
| 2013 | 63° | 35° | 49° | — | — |
| 2012 | 70° | 60° | 65° | 2.16" | — |
| 2011 | 68° | 53° | 61° | 1.75" | — |
| 2010 | 72° | 55° | 63° | — | — |
| 2009 | 78° | 57° | 68° | — | — |
| 2008 | 67° | 51° | 59° | — | — |
| 2007 | 83° | 52° | 67° | — | — |
| 2006 | 57° | 48° | 53° | 0.41" | — |
| 2005 | 73° | 54° | 63° | 0.84" | — |
| 2004warmest | 86° | 60° | 73° | — | — |
| 2003 | 70° | 49° | 59° | — | — |
| 2002 | 66° | 42° | 54° | — | — |
| 2001 | 66° | 40° | 53° | — | — |
| 2000 | 63° | 46° | 54° | — | — |
| 1999 | 69° | 44° | 57° | — | — |
| 1998 | 76° | 39° | 57° | — | — |
| 1997 | 70° | 29° | 49° | — | — |
| 1996 | 62° | 32° | 47° | — | — |
| 1995 | 59° | 49° | 54° | 0.56" | — |
| 1994 | 76° | 52° | 64° | 1.12" | — |
| 1993 | 72° | 53° | 62° | — | — |
| 1992 | 74° | 52° | 63° | 0.56" | — |
| 1991 | 78° | 56° | 67° | — | — |
| 1990 | 73° | 52° | 62° | — | — |
| 1989 | 69° | 49° | 59° | — | — |
| 1988 | 70° | 45° | 57° | — | — |
| 1987 | 69° | 42° | 56° | — | — |
| 1986 | 77° | 41° | 59° | — | — |
| 1985 | 78° | 47° | 62° | — | — |
| 1984coldest | 59° | 35° | 47° | — | — |
| 1983 | 74° | 50° | 62° | 0.08" | — |
| 1982 | 74° | 43° | 58° | — | — |
| 1981 | 75° | 55° | 65° | — | — |
| 1980 | 73° | 41° | 57° | — | — |
| 1979 | 63° | 54° | 58° | 0.58" | — |
| 1978 | 67° | 45° | 56° | 3.94" | — |
| 1977 | 66° | 36° | 51° | — | — |
| 1976 | 75° | 60° | 68° | — | — |
| 1975 | 79° | 55° | 67° | — | — |
| 1974 | 72° | 43° | 57° | — | — |
| 1973 | 69° | 49° | 59° | — | — |
| 1972 | 69° | 54° | 61° | 2.51" | — |
| 1971 | 66° | 35° | 51° | — | — |
55 years of data from HARTFORD BRAINARD FLD