Average Last Frost Dates for Colorado

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

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List of Average Last Frost Dates for Locations in Colorado

LocationAverage Last Frost Dates
ArvadaMay 21 - May 31
AuroraMay 21 - May 31
Black ForestJun. 11 - Jun. 20
BoulderMay 21 - May 31
BrightonMay 21 - May 31
BroomfieldMay 21 - May 31
Castle RockJun. 1 - Jun. 10
CentennialJun. 1 - Jun. 10
Cimarron HillsMay 21 - May 31
CliftonMay 1 - May 10
Colorado SpringsMay 21 - May 31
ColumbineMay 21 - May 31
Commerce CityMay 21 - May 31
DenverMay 21 - May 31
DurangoMay 21 - May 31
EnglewoodMay 21 - May 31
ErieMay 21 - May 31
EvansMay 21 - May 31
FirestoneMay 21 - May 31
Fort CarsonMay 21 - May 31
Fort CollinsMay 21 - May 31
FountainMay 11 - May 20
FruitvaleMay 1 - May 10
GoldenJun. 1 - Jun. 10
Grand JunctionMay 1 - May 10
GreeleyMay 21 - May 31
Greenwood VillageMay 21 - May 31
Highlands RanchJun. 1 - Jun. 10
JohnstownMay 21 - May 31
Ken CarylJun. 1 - Jun. 10
LafayetteMay 21 - May 31
LakewoodMay 21 - May 31
LittletonMay 21 - May 31
LongmontMay 21 - May 31
LouisvilleMay 21 - May 31
LovelandMay 21 - May 31
MontroseMay 21 - May 31
NorthglennMay 21 - May 31
ParkerJun. 1 - Jun. 10
PuebloMay 11 - May 20
Pueblo WestMay 11 - May 20
SherrelwoodMay 21 - May 31
ThorntonMay 21 - May 31
TimnathMay 21 - May 31
WelbyMay 21 - May 31
WestminsterMay 21 - May 31
Wheat RidgeMay 21 - May 31
WindsorMay 21 - May 31
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