National Weather ServiceConnecticutWinter Weather AdvisoryArchive to October 1, 2026
Winter Weather Advisories in Connecticut
The National Weather Service issued 27 winter weather advisories for Connecticut in 2025 and 32 a year on average in 2008-2025; in 2021-2025 it had the 36th most of any state. 2026 through September: 18, 21% below the average of 23 for those months in 2008-2025. Northern Litchfield was covered most often (206 times since 2008).
How many winter weather advisories does Connecticut get?
Every winter weather advisory that covered part of Connecticut. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 18 |
| 2025 | 27 |
| 2024 | 23 |
| 2023 | 20 |
| 2022 | 33 |
| 2021 | 33 |
| 2020 | 19 |
| 2019 | 50 |
| 2018 | 41 |
| 2017 | 40 |
| 2016 | 41 |
| 2015 | 32 |
| 2014 | 26 |
| 2013 | 35 |
| 2012 | 32 |
| 2011 | 33 |
| 2010 | 23 |
| 2009 | 30 |
| 2008 | 36 |
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 |
|---|---|---|---|
| Northern Litchfield | 206 | 37 | March 5, 2026 |
| Hartford | 185 | 27 | March 5, 2026 |
| Southern Litchfield | 182 | 30 | March 5, 2026 |
| Tolland | 179 | 25 | March 5, 2026 |
| Windham | 178 | 24 | March 5, 2026 |
| Northern Fairfield | 154 | 22 | March 3, 2026 |
| Northern New Haven | 150 | 20 | March 3, 2026 |
| Northern New London | 141 | 19 | March 3, 2026 |
| Northern Middlesex | 140 | 19 | March 3, 2026 |
| Southern New Haven | 117 | 11 | February 10, 2026 |
| Southern Fairfield | 116 | 11 | February 10, 2026 |
| Southern Middlesex | 116 | 11 | February 10, 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 winter weather advisory?
A winter weather advisory covers snow, sleet or freezing rain that will be a nuisance and can make roads slippery, below warning amounts. An advisory is issued for a hazard less serious than a warning that can still cause inconvenience or danger if people are not careful. The national record · Every warning type in Connecticut.