Average First Frost Dates for Connecticut

About First Frost Dates in Connecticut

First Frost Dates were calculated using daily climate data from the period between 1991-2020.

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Interactive Map of Average First Frost Dates for Connecticut

Click on the map for more information. Click on the icon in the lower right to view the map legend. Add additional data layers using the icon in the upper right corner.

List of Average First Frost Dates for Locations in Connecticut

LocationAverage First Frost Dates
AnsoniaOctober 21 - 31
AvonOctober 11 - 20
Beacon FallsOctober 21 - 31
BethanyOctober 21 - 31
BloomfieldOctober 11 - 20
BridgeportNovember 1 - 10
BristolOctober 11 - 20
BrookfieldOctober 1 - 10
BurlingtonOctober 1 - 10
CanterburyOctober 11 - 20
ColumbiaOctober 11 - 20
CromwellOctober 11 - 20
DanburyOctober 1 - 10
East GranbyOctober 11 - 20
East HaddamOctober 11 - 20
East HartfordOctober 21 - 31
East HavenOctober 21 - 31
EastonOctober 11 - 20
EllingtonOctober 11 - 20
FairfieldOctober 21 - 31
FarmingtonOctober 11 - 20
HaddamOctober 21 - 31
HamdenOctober 21 - 31
HartfordOctober 11 - 20
HebronOctober 11 - 20
KillingworthOctober 21 - 31
LebanonOctober 11 - 20
ManchesterOctober 11 - 20
MarlboroughOctober 11 - 20
MeridenOctober 11 - 20
MiddleburyOctober 1 - 10
MiddletownOctober 11 - 20
MilfordNovember 1 - 10
MonroeOctober 21 - 31
NaugatuckOctober 21 - 31
New BritainOctober 11 - 20
New FairfieldOctober 1 - 10
New HavenOctober 21 - 31
New LondonOctober 21 - 31
NewingtonOctober 11 - 20
North BranfordOctober 21 - 31
North HavenOctober 21 - 31
North StoningtonOctober 11 - 20
NorwalkOctober 21 - 31
NorwichOctober 11 - 20
Old LymeOctober 11 - 20
OxfordOctober 21 - 31
PlainvilleOctober 11 - 20
PlymouthOctober 1 - 10
ProspectOctober 11 - 20
Rocky HillOctober 11 - 20
SeymourOctober 21 - 31
SheltonOctober 21 - 31
South WindsorOctober 11 - 20
SouthburyOctober 11 - 20
SouthingtonOctober 11 - 20
StaffordOctober 11 - 20
StamfordOctober 21 - 31
StorrsOctober 11 - 20
StratfordNovember 1 - 10
ThompsonOctober 11 - 20
TollandOctober 11 - 20
TorringtonOctober 1 - 10
VernonOctober 11 - 20
WaterburyOctober 11 - 20
West HartfordOctober 11 - 20
West HavenOctober 21 - 31
WethersfieldOctober 21 - 31
WillimanticOctober 11 - 20
WiltonOctober 11 - 20
WindhamOctober 11 - 20
WindsorOctober 11 - 20
WolcottOctober 1 - 10
WoodbridgeOctober 21 - 31
WoodstockOctober 11 - 20

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