Last frost dates in Connecticut

Typical last frost
April 17

That is the date for the typical Connecticut resident, weighted by city population. Across the state the average last frost runs from April 5 to May 8, so look up your own town below.

Earliest city
Apr 5
Latest city
May 8
Typical first frost
Oct 26
Cities
25
This week in Connecticut

Frost in the forecast for 14 of 25 cities

National Weather Service forecast, updated Oct 22, 11:10 UTC

Apr 1May 1Apr 15May 15NSBridgeport: Apr 5BridgeportStamford: Apr 17StamfordNew Haven: Apr 17New HavenHartford: Apr 17HartfordWaterbury: Apr 26WaterburyNorwalk: Apr 17Danbury: May 1DanburyNew Britain: Apr 17West Hartford: Apr 17Bristol: Apr 25Meriden: Apr 26West Haven: Apr 17Milford: Apr 5East Hartford: Apr 17Middletown: Apr 26Shelton: Apr 25Norwich: Apr 14Manchester: Apr 17Torrington: May 8Naugatuck: Apr 18Newington: Apr 17New London: Apr 16East Haven: Apr 17Wethersfield: Apr 17North Haven: Apr 18
Each dot is a city: further right means a later last frost, higher up means further north. Bigger dots are bigger cities.

Frost dates by city

CityLast frostSafe afterFirst frostSeason
BridgeportApr 5Apr 17Nov 6216 days
StamfordApr 17May 2Oct 23188 days
New HavenApr 17May 1Oct 27193 days
HartfordApr 17May 1Oct 26191 days
WaterburyApr 26May 9Oct 16175 days
NorwalkApr 17May 2Oct 23188 days
DanburyMay 1May 16Oct 14166 days
New BritainApr 17May 1Oct 26191 days
West HartfordApr 17May 1Oct 26191 days
BristolApr 25May 10Oct 18172 days
MeridenApr 26May 9Oct 16175 days
West HavenApr 17May 1Oct 27193 days
MilfordApr 5Apr 17Nov 6216 days
East HartfordApr 17May 1Oct 26191 days
MiddletownApr 26May 9Oct 16175 days
SheltonApr 25May 10Oct 17175 days
NorwichApr 14Apr 30Oct 24192 days
ManchesterApr 17May 1Oct 26191 days
TorringtonMay 8May 22Oct 5151 days
NaugatuckApr 18May 3Oct 26191 days
NewingtonApr 17May 1Oct 26191 days
New LondonApr 16Apr 30Oct 28194 days
East HavenApr 17May 1Oct 27193 days
WethersfieldApr 17May 1Oct 26191 days
North HavenApr 18May 3Oct 26191 days

When to plant in Connecticut

Questions

When is the last frost in Connecticut?

It depends on where you are. Across the 25 cities we track, the average last frost runs from April 5 to May 8. In Bridgeport, the largest, it is April 5.

When is the first frost in Connecticut?

For a typical resident, around October 26. Higher and more northern towns get it earlier.