National Weather ServiceConnecticutFlood WarningArchive to October 1, 2026
Flood Warnings in Connecticut
The National Weather Service issued 10 flood warnings for Connecticut in 2025 and 34 a year on average in 2008-2025; in 2021-2025 it had the 34th most of any state. 2026 through September: 5, 82% below the average of 27 for those months in 2008-2025. Hartford was covered most often (201 times since 2008).
How many flood warnings does Connecticut get?
Every flood warning that covered part of Connecticut. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 5 |
| 2025 | 10 |
| 2024 | 56 |
| 2023 | 72 |
| 2022 | 8 |
| 2021 | 52 |
| 2020 | 20 |
| 2019 | 38 |
| 2018 | 64 |
| 2017 | 19 |
| 2016 | 14 |
| 2015 | 14 |
| 2014 | 24 |
| 2013 | 22 |
| 2012 | 1 |
| 2011 | 88 |
| 2010 | 51 |
| 2009 | 13 |
| 2008 | 54 |
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 |
|---|---|---|---|
| Hartford | 201 | 32 | May 11, 2025 |
| Litchfield | 165 | 39 | March 12, 2026 |
| Fairfield | 161 | 46 | July 6, 2026 |
| Middlesex | 104 | 18 | May 7, 2025 |
| New Haven | 94 | 27 | March 17, 2026 |
| Windham | 78 | 9 | May 16, 2024 |
| Tolland | 68 | 9 | January 10, 2024 |
| New London | 58 | 18 | December 12, 2024 |
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.
The latest flood warnings for Connecticut in AreaZine's record
NWS UptonWarningJuly 6, 2026
Flood Warning: Fairfield, CT
Expired 11:30 p.m. EDT, July 6, 2026
This list is AreaZine's record of the NWS alert feed, kept since April 6, 2026; the counts above come from the complete IEM archive.
Source: National Weather Service alerts (api.weather.gov).
What is a flood warning?
A flood warning means flooding is happening or about to happen. The NWS issues it both for rivers at forecast points (river flood warnings) and for areas where water ponds or runs off (areal flood warnings); AreaZine counts both. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. The national record · Every warning type in Connecticut.