Weather on June 30
Waterbury, CT
55 Years of Data
Avg High
82°F
Avg Low
62°F
Warmest
2021
83°F avg
Coldest
1988
58°F avg
About This Date
June 30th in Waterbury, CT typically brings warm summer weather, with average highs around 82°F and lows near 62°F. Over 50 years of records, the warmest June 30th was in 2021 (83°F average), while the coldest was 1988 (58°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 34% of June 30th dates historically, with the wettest June 30th recording 5" of rain. The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
Planning for June 30th in Waterbury, CT? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 90° | 67° | 78° | — | — |
| 2024 | 84° | 70° | 77° | 1.17" | — |
| 2023 | 83° | 64° | 73° | — | — |
| 2022 | 84° | 62° | 73° | — | — |
| 2021warmest | 93° | 74° | 83° | 0.05" | — |
| 2020 | 80° | 62° | 71° | 0.1" | — |
| 2019 | 87° | 66° | 77° | — | — |
| 2018 | 89° | 68° | 79° | — | — |
| 2017 | 79° | 63° | 71° | — | — |
| 2016 | 85° | 63° | 74° | — | — |
| 2015 | 76° | 58° | 67° | — | — |
| 2014 | 82° | 68° | 75° | — | — |
| 2013 | 81° | 71° | 76° | — | — |
| 2012 | 91° | 68° | 80° | — | — |
| 2011 | 78° | 62° | 70° | — | — |
| 2010 | 78° | 59° | 69° | — | — |
| 2009 | 81° | 61° | 71° | — | — |
| 2008 | 83° | 72° | 77° | 0.13" | — |
| 2007 | 78° | 60° | 69° | — | — |
| 2006 | 80° | 63° | 71° | — | — |
| 2005 | 77° | 69° | 73° | 0.08" | — |
| 2004 | 80° | 59° | 70° | — | — |
| 2003 | 82° | 65° | 73° | 0.03" | — |
| 2002 | 81° | 63° | 72° | — | — |
| 2001 | 91° | 66° | 79° | — | — |
| 2000 | 80° | 59° | 70° | 0.03" | — |
| 1996 | 74° | 58° | 66° | 0.46" | — |
| 1995 | 83° | 52° | 67° | — | — |
| 1992 | 82° | 60° | 71° | — | — |
| 1991 | 95° | 62° | 79° | 1.02" | — |
| 1990 | 83° | 66° | 74° | 2.79" | — |
| 1989 | 81° | 54° | 67° | — | — |
| 1988coldest | 74° | 43° | 58° | 0.13" | — |
| 1987 | 88° | 68° | 78° | — | — |
| 1986 | 77° | 57° | 67° | — | — |
| 1985 | 79° | 56° | 67° | — | — |
| 1984 | 72° | 63° | 67° | 0.3" | — |
| 1983 | 89° | 53° | 71° | — | — |
| 1982 | 79° | 63° | 71° | 0.51" | — |
| 1981 | 85° | 52° | 68° | — | — |
| 1980 | 75° | 59° | 67° | 3.35" | — |
| 1979 | 79° | 66° | 72° | 1.52" | — |
| 1978 | 84° | 67° | 75° | — | — |
| 1977 | 83° | 56° | 69° | — | — |
| 1976 | 84° | 64° | 74° | — | — |
| 1975 | 78° | 61° | 69° | — | — |
| 1974 | 80° | 56° | 68° | — | — |
| 1973 | 75° | 68° | 72° | 3.48" | — |
| 1972 | 73° | 63° | 68° | 5" | — |
| 1971 | 90° | 66° | 78° | — | — |
50 years of data from MT CARMEL