Average First Frost Dates for Colorado

About First Frost Dates in Colorado

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

Map List Related Pages

Interactive Map of Average First Frost Dates for Colorado

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 Colorado

LocationAverage First Frost Dates
ArvadaOctober 1 - 10
AuroraOctober 1 - 10
Black ForestSeptember 11 - 20
BoulderOctober 1 - 10
BrightonOctober 1 - 10
BroomfieldOctober 1 - 10
Castle RockSeptember 21 - 30
CentennialOctober 1 - 10
Cimarron HillsOctober 1 - 10
CliftonOctober 11 - 20
Colorado SpringsSeptember 11 - 20
ColumbineOctober 1 - 10
Commerce CityOctober 1 - 10
DenverOctober 1 - 10
DurangoSeptember 21 - 30
EnglewoodOctober 1 - 10
ErieOctober 1 - 10
EvansOctober 1 - 10
FirestoneOctober 1 - 10
Fort CarsonSeptember 21 - 30
Fort CollinsOctober 1 - 10
FountainOctober 1 - 10
FruitvaleOctober 11 - 20
GoldenSeptember 21 - 30
Grand JunctionOctober 11 - 20
GreeleyOctober 1 - 10
Greenwood VillageOctober 1 - 10
Highlands RanchSeptember 21 - 30
JohnstownOctober 1 - 10
Ken CarylOctober 1 - 10
LafayetteOctober 1 - 10
LakewoodOctober 1 - 10
LittletonOctober 1 - 10
LongmontOctober 1 - 10
LouisvilleOctober 1 - 10
LovelandOctober 1 - 10
MontroseOctober 1 - 10
NorthglennOctober 1 - 10
ParkerOctober 1 - 10
PuebloOctober 1 - 10
Pueblo WestOctober 1 - 10
SherrelwoodOctober 1 - 10
ThorntonOctober 1 - 10
TimnathOctober 1 - 10
WelbyOctober 1 - 10
WestminsterOctober 1 - 10
Wheat RidgeOctober 1 - 10
WindsorOctober 1 - 10

Maps for Neighboring Areas

2025 plantmaps.com