Average First Frost Dates for Wyoming

About First Frost Dates in Wyoming

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 Wyoming

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 Wyoming

LocationAverage First Frost Dates
CasperSeptember 21 - 30
CheyenneOctober 1 - 10
CodyOctober 1 - 10
DouglasSeptember 21 - 30
EvanstonSeptember 1 - 10
GilletteSeptember 21 - 30
Green RiverSeptember 11 - 20
JacksonJuly 21 - 31
LanderOctober 1 - 10
LaramieSeptember 1 - 10
PowellSeptember 11 - 20
RanchettesOctober 1 - 10
RawlinsSeptember 11 - 20
RivertonSeptember 21 - 30
Rock SpringsSeptember 21 - 30
SheridanSeptember 21 - 30
TorringtonSeptember 11 - 20

Maps for Neighboring Areas

2025 plantmaps.com