Weather on August 9
Waterbury, CT
55 Years of Data
Avg High
84°F
Avg Low
64°F
Warmest
2022
86°F avg
Coldest
1989
63°F avg
About This Date
August 9th in Waterbury, CT typically brings warm summer weather, with average highs around 84°F and lows near 64°F. Over 52 years of records, the warmest August 9th was in 2022 (86°F average), while the coldest was 1989 (63°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 29% of August 9th dates historically, with the wettest August 9th recording 2.51" of rain. The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
Planning for August 9th in Waterbury, CT? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 57° | 70° | — | — |
| 2024 | 86° | 71° | 79° | — | — |
| 2023 | 86° | 71° | 79° | — | — |
| 2022warmest | 93° | 78° | 86° | 0.61" | — |
| 2021 | 80° | 71° | 76° | 0.05" | — |
| 2020 | 86° | 67° | 76° | — | — |
| 2019 | 86° | 62° | 74° | 0.05" | — |
| 2018 | 89° | 72° | 80° | 0.86" | — |
| 2017 | 78° | 55° | 67° | — | — |
| 2016 | 90° | 56° | 73° | — | — |
| 2015 | 82° | 60° | 71° | — | — |
| 2014 | 84° | 58° | 71° | — | — |
| 2013 | 80° | 71° | 76° | 0.64" | — |
| 2012 | 86° | 71° | 79° | — | — |
| 2011 | 81° | 69° | 75° | 2.51" | — |
| 2010 | 89° | 73° | 81° | — | — |
| 2009 | 76° | 70° | 73° | 0.03" | — |
| 2008 | 80° | 60° | 70° | — | — |
| 2007 | 78° | 70° | 74° | — | — |
| 2006 | 80° | 59° | 70° | — | — |
| 2005 | 82° | 71° | 77° | — | — |
| 2004 | 82° | 52° | 67° | — | — |
| 2003 | 78° | 72° | 75° | 0.1" | — |
| 2002 | 83° | 57° | 70° | — | — |
| 2001 | 102° | 68° | 85° | — | — |
| 2000 | 86° | 68° | 77° | 0.08" | — |
| 1999 | 78° | 56° | 67° | — | — |
| 1996 | 83° | 61° | 72° | — | — |
| 1995 | 85° | 51° | 68° | — | — |
| 1993 | 81° | 60° | 70° | 0.69" | — |
| 1992 | 75° | 63° | 69° | 0.1" | — |
| 1991 | 84° | 61° | 72° | 0.81" | — |
| 1990 | 83° | 64° | 73° | — | — |
| 1989coldest | 77° | 48° | 63° | — | — |
| 1988 | 88° | 65° | 76° | — | — |
| 1987 | 85° | 68° | 76° | — | — |
| 1986 | 84° | 66° | 75° | — | — |
| 1985 | 85° | 64° | 74° | — | — |
| 1984 | 80° | 68° | 74° | — | — |
| 1983 | 84° | 63° | 73° | — | — |
| 1982 | 83° | 70° | 76° | 0.76" | — |
| 1981 | 85° | 66° | 75° | 0.03" | — |
| 1980 | 91° | 74° | 82° | — | — |
| 1979 | 84° | 66° | 75° | — | — |
| 1978 | 85° | 64° | 74° | — | — |
| 1977 | 88° | 73° | 80° | — | — |
| 1976 | 72° | 67° | 69° | 1.27" | — |
| 1975 | 84° | 59° | 72° | — | — |
| 1974 | 85° | 56° | 70° | — | — |
| 1973 | 90° | 68° | 79° | — | — |
| 1972 | 83° | 59° | 71° | — | — |
| 1971 | 90° | 62° | 76° | — | — |
52 years of data from MT CARMEL