National Weather ServiceConnecticutFlood WatchArchive to October 1, 2026
Flood Watches in Connecticut
The National Weather Service issued 17 flood watches for Connecticut in 2025 and 14 a year on average in 2008-2025; in 2021-2025 it had the 30th most of any state. 2026 through September: 14, 25% above the average of 11 for those months in 2008-2025. Southern Litchfield was covered most often (97 times since 2008).
How many flood watches does Connecticut get?
Every flood watch that covered part of Connecticut. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 14 |
| 2025 | 17 |
| 2024 | 23 |
| 2023 | 37 |
| 2022 | 7 |
| 2021 | 5 |
| 2020 | 3 |
| 2019 | 10 |
| 2018 | 14 |
| 2017 | 7 |
| 2016 | 0 |
| 2015 | 4 |
| 2014 | 16 |
| 2013 | 15 |
| 2012 | 6 |
| 2011 | 34 |
| 2010 | 17 |
| 2009 | 9 |
| 2008 | 35 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Connecticut get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Connecticut?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Southern Litchfield | 97 | 27 | July 28, 2026 |
| Northern Litchfield | 97 | 27 | July 28, 2026 |
| Hartford | 92 | 28 | July 28, 2026 |
| Windham | 80 | 28 | September 13, 2026 |
| Tolland | 78 | 25 | July 28, 2026 |
| Northern Middlesex | 74 | 23 | September 13, 2026 |
| Southern Fairfield | 73 | 32 | September 13, 2026 |
| Northern Fairfield | 72 | 30 | August 27, 2026 |
| Northern New Haven | 70 | 27 | September 13, 2026 |
| Southern Middlesex | 69 | 23 | September 13, 2026 |
| Southern New Haven | 66 | 25 | September 13, 2026 |
| Southern New London | 65 | 23 | September 13, 2026 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
What is a flood watch?
A flood watch means conditions may lead to flooding in the coming day or days; it is not yet happening. A watch means the conditions for the hazard are possible or favourable, but it is not yet happening: be ready to act if a warning follows. The national record · Every warning type in Connecticut.