Weather on May 31
Waterbury, CT
55 Years of Data
Avg High
75°F
Avg Low
55°F
Warmest
1987
79°F avg
Coldest
2001
52°F avg
About This Date
May 31st in Waterbury, CT typically brings pleasant spring weather, with average highs around 75°F and lows near 55°F. Over 52 years of records, the warmest May 31st was in 1987 (79°F average), while the coldest was 2001 (52°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 37% of May 31st dates historically, with the wettest May 31st recording 6.02" of rain. The last decade has been 5.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.3°F warmer on this date compared to 20-30 years ago.
Planning for May 31st in Waterbury, CT? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 69° | 55° | 62° | 1.12" | — |
| 2024 | 78° | 52° | 65° | — | — |
| 2023 | 75° | 48° | 62° | — | — |
| 2022 | 95° | 60° | 78° | — | — |
| 2021 | 65° | 49° | 57° | — | — |
| 2020 | 80° | 55° | 68° | — | — |
| 2019 | 68° | 54° | 61° | 1.57" | — |
| 2018 | 82° | 50° | 66° | — | — |
| 2017 | 60° | 54° | 57° | 0.18" | — |
| 2016 | 78° | 68° | 73° | — | — |
| 2015 | 83° | 60° | 71° | — | — |
| 2014 | 73° | 51° | 62° | — | — |
| 2013 | 91° | 63° | 77° | — | — |
| 2012 | 82° | 61° | 71° | — | — |
| 2011 | 82° | 65° | 73° | — | — |
| 2010 | 77° | 59° | 68° | — | — |
| 2009 | 76° | 51° | 63° | — | — |
| 2008 | 69° | 60° | 65° | 0.05" | — |
| 2007 | 74° | 56° | 65° | 0.53" | — |
| 2006 | 71° | 58° | 64° | — | — |
| 2005 | 71° | 50° | 61° | 0.05" | — |
| 2004 | 64° | 47° | 55° | 0.25" | — |
| 2003 | 68° | 55° | 62° | 1.3" | — |
| 2002 | 76° | 62° | 69° | 2.18" | — |
| 2001coldest | 66° | 37° | 52° | — | — |
| 2000 | 69° | 46° | 58° | — | — |
| 1996 | 76° | 45° | 60° | — | — |
| 1995 | 84° | 50° | 67° | — | — |
| 1994 | 78° | 55° | 67° | — | — |
| 1993 | 73° | 45° | 59° | — | — |
| 1992 | 64° | 54° | 59° | 5.03" | — |
| 1991 | 82° | 65° | 73° | 1.55" | — |
| 1990 | 76° | 38° | 57° | — | — |
| 1989 | 84° | 59° | 72° | — | — |
| 1988 | 78° | 55° | 67° | — | — |
| 1987warmest | 91° | 66° | 79° | — | — |
| 1986 | 86° | 62° | 74° | — | — |
| 1985 | 69° | 51° | 60° | — | — |
| 1984 | 63° | 50° | 56° | 6.02" | — |
| 1983 | 71° | 60° | 66° | 0.2" | — |
| 1982 | 77° | 58° | 67° | 1.09" | — |
| 1981 | 78° | 64° | 71° | — | — |
| 1980 | 72° | 56° | 64° | 0.03" | — |
| 1979 | 76° | 58° | 67° | 0.25" | — |
| 1978 | 84° | 57° | 71° | — | — |
| 1977 | 75° | 40° | 57° | — | — |
| 1976 | 78° | 60° | 69° | — | — |
| 1975 | 78° | 63° | 70° | 2.41" | — |
| 1974 | 67° | 49° | 58° | — | — |
| 1973 | 77° | 55° | 66° | 0.56" | — |
| 1972 | 71° | 61° | 66° | 3.02" | — |
| 1971 | 69° | 56° | 62° | — | — |
52 years of data from MT CARMEL