Average First Frost Dates for New Hampshire

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

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List of Average First Frost Dates for Locations in New Hampshire

LocationAverage First Frost Dates
AtkinsonOct. 11 - Oct. 20
AuburnOct. 1 - Oct. 10
BarringtonOct. 1 - Oct. 10
BedfordOct. 11 - Oct. 20
BerlinSep. 21 - Sep. 30
BrooklineOct. 1 - Oct. 10
ChesterOct. 1 - Oct. 10
ClaremontOct. 1 - Oct. 10
ConcordOct. 1 - Oct. 10
DerryOct. 11 - Oct. 20
DoverOct. 1 - Oct. 10
DurhamOct. 1 - Oct. 10
East MerrimackOct. 11 - Oct. 20
ExeterOct. 1 - Oct. 10
FranklinSep. 21 - Sep. 30
GilfordOct. 11 - Oct. 20
HampsteadOct. 1 - Oct. 10
HamptonOct. 1 - Oct. 10
HanoverOct. 11 - Oct. 20
HollisOct. 1 - Oct. 10
HooksettOct. 1 - Oct. 10
HopkintonOct. 1 - Oct. 10
HudsonOct. 1 - Oct. 10
KeeneOct. 1 - Oct. 10
KingstonOct. 1 - Oct. 10
LaconiaOct. 11 - Oct. 20
LebanonOct. 1 - Oct. 10
LitchfieldOct. 11 - Oct. 20
LondonderryOct. 1 - Oct. 10
ManchesterOct. 1 - Oct. 10
MilfordOct. 1 - Oct. 10
NashuaOct. 1 - Oct. 10
New IpswichSep. 21 - Sep. 30
NewmarketOct. 1 - Oct. 10
NottinghamOct. 1 - Oct. 10
PelhamOct. 1 - Oct. 10
PinardvilleOct. 11 - Oct. 20
PlaistowOct. 11 - Oct. 20
PortsmouthOct. 1 - Oct. 10
RindgeSep. 21 - Sep. 30
RochesterOct. 1 - Oct. 10
RyeOct. 1 - Oct. 10
SalemOct. 11 - Oct. 20
SandownOct. 1 - Oct. 10
SeabrookOct. 1 - Oct. 10
SomersworthOct. 1 - Oct. 10
South HooksettOct. 1 - Oct. 10
StrathamOct. 1 - Oct. 10
SuncookOct. 1 - Oct. 10
SwanzeySep. 21 - Sep. 30
WakefieldOct. 1 - Oct. 10
WeareOct. 1 - Oct. 10
WindhamOct. 1 - Oct. 10

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