Ximonic (Simo Rasanen) / CC BY-SA 4.0
Waterbury, CT Weather on October 9
October 9th in Waterbury, CT typically brings mild fall weather, with average highs around 67°F and lows near 47°F. Over 54 years of records, the warmest October 9th was in 2017 (73°F average), while the coldest was 2000 (41°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 35% of October 9th dates historically, with the wettest October 9th recording 2.53" of rain. The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
What to Expect on October 9
Planning for October 9th in Waterbury, CT? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
October 9 Weather Records for Waterbury
- •The all-time record high for October 9th in Waterbury, CT is 84°F, set in 2011.
- •The coldest October 9th on record dropped to 27°F in 2001.
- •A freeze (32°F or below) has occurred on October 9th in 4 of the last 54 years.
Frequently Asked Questions
What was the warmest October 9 ever in Waterbury?
The warmest October 9 in Waterbury, CT reached 84°F in 2011. That is 17°F above the long-term average high of 67°F.
What was the coldest October 9 ever in Waterbury?
The coldest October 9 in Waterbury, CT dropped to 27°F in 2001. That is 20°F below the long-term average low of 47°F.
What is the average temperature on October 9 in Waterbury?
On October 9, Waterbury averages a high of 67°F and a low of 47°F based on 54 years of NOAA weather observations from MT CARMEL.
How many years of weather data are available for October 9 in Waterbury?
We have 54 years of weather records for October 9 in Waterbury, CT, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
October 9 Weather History in Waterbury
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 61°F | 42°F | 0" | -- |
| 2024 | 68°F | 47°F | 0" | -- |
| 2023 | 64°F | 48°F | 0" | -- |
| 2022 | 65°F | 38°F | 0" | -- |
| 2021 | 70°F | 60°F | 0" | -- |
| 2020 | 64°F | 42°F | 0" | -- |
| 2019 | 61°F | 50°F | 0" | -- |
| 2018 | 78°F | 58°F | 0.05" | -- |
| 2017 | 76°F | 70°F | 0.5" | -- |
| 2016 | 68°F | 51°F | 0.4" | -- |
| 2015 | 67°F | 51°F | 0" | -- |
| 2014 | 68°F | 45°F | 0" | -- |
| 2013 | 68°F | 44°F | 0" | -- |
| 2012 | 59°F | 49°F | 0.02" | -- |
| 2011 | 84°F | 49°F | 0" | -- |
| 2010 | 70°F | 44°F | 0" | -- |
| 2009 | 68°F | 54°F | 0.07" | -- |
| 2008 | 73°F | 57°F | 0.12" | -- |
| 2007 | 75°F | 57°F | 0.16" | -- |
| 2006 | 73°F | 43°F | 0.01" | -- |
| 2005 | 73°F | 52°F | 0.09" | -- |
| 2004 | 69°F | 61°F | 0" | -- |
| 2003 | 73°F | 50°F | 0.01" | -- |
| 2002 | 63°F | 43°F | 0" | -- |
| 2001 | 60°F | 27°F | 0" | -- |
| 2000 | 52°F | 30°F | 0" | -- |
| 1999 | 69°F | 53°F | 0.06" | -- |
| 1997 | 72°F | 49°F | 0" | -- |
| 1996 | 64°F | 50°F | 2.46" | -- |
| 1995 | 67°F | 39°F | 0" | -- |
| 1994 | 74°F | 49°F | 0" | -- |
| 1993 | 74°F | 50°F | 0" | -- |
| 1992 | 66°F | 49°F | 0.54" | -- |
| 1991 | 66°F | 41°F | 0" | -- |
| 1990 | 77°F | 66°F | 0.53" | -- |
| 1989 | 52°F | 35°F | 0" | -- |
| 1988 | 55°F | 29°F | 0.15" | -- |
| 1987 | 57°F | 33°F | 0" | -- |
| 1986 | 74°F | 55°F | 0" | -- |
| 1985 | 71°F | 46°F | 0" | -- |
| 1984 | 74°F | 54°F | 0" | -- |
| 1983 | 68°F | 48°F | 0" | -- |
| 1982 | 66°F | 53°F | 0.23" | -- |
| 1981 | 58°F | 36°F | 0" | -- |
| 1980 | 67°F | 46°F | 0" | -- |
| 1979 | 65°F | 35°F | 0.15" | -- |
| 1978 | 56°F | 31°F | 0" | -- |
| 1977 | 63°F | 52°F | 2.53" | -- |
| 1976 | 72°F | 63°F | 1.64" | -- |
| 1975 | 70°F | 50°F | 0" | -- |
| 1974 | 61°F | 36°F | 0" | -- |
| 1973 | 69°F | 39°F | 0" | -- |
| 1972 | 62°F | 45°F | 0" | -- |
| 1971 | 65°F | 39°F | 0" | -- |
Based on 54 years of data from NOAA station: MT CARMEL
Monthly Climate Averages
Historical temperature and precipitation averages for Waterbury, CT, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.