Station by station
When does the ground freeze in Wyoming?
Each bar runs from the typical first freeze to the typical last thaw at that depth, the median over the station's complete winters on record, with the typical number of frozen days after it. Frost reaches the deeper probes later in the winter. A depth that froze in fewer than half of its winters has no typical dates. Stations: 4 typically freeze.
Lander 11 SSE
USCRNTypically freezes at every depth measured, down to 4 inches.
2 in2 inches: typically frozen from Nov 26 to Mar 15, a median of 103 frozen days.103 days
4 in4 inches: typically frozen from Dec 8 to Mar 17, a median of 99 frozen days.99 days
Nov 3, 2026: Not frozen
Moose 1 NNE
USCRNTypically freezes at every depth measured, down to 4 inches.
2 in2 inches: typically frozen from Nov 26 to Apr 24, a median of 150 frozen days.150 days
4 in4 inches: typically frozen from Nov 26 to Apr 24, a median of 134 frozen days.134 days
Nov 3, 2026: Not frozen
Sundance 8 NNW
USCRNTypically freezes to 20 inches, not to 40.
2 in2 inches: typically frozen from Nov 30 to Mar 27, a median of 121 frozen days.121 days
4 in4 inches: typically frozen from Nov 30 to Mar 26, a median of 110 frozen days.110 days
8 in8 inches: typically frozen from Dec 19 to Mar 29, a median of 103 frozen days.103 days
20 in20 inches: typically frozen from Jan 21 to Mar 4, a median of 16 frozen days.16 days
40 inFroze in 1 of 5 winters, no typical dates
Nov 3, 2026: Not frozen
Torrington #1
SCANTypically freezes to 20 inches, not to 40.
2 in2 inches: typically frozen from Nov 29 to Feb 23, a median of 73 frozen days.73 days
4 in4 inches: typically frozen from Nov 29 to Feb 24, a median of 71 frozen days.71 days
8 in8 inches: typically frozen from Dec 18 to Feb 24, a median of 46 frozen days.46 days
20 in20 inches: typically frozen from Jan 14 to Jan 27, a median of 7 frozen days.7 days
40 inFroze in 0 of 5 winters, no typical dates
Nov 3, 2026: Not frozen
A winter runs July to June. Our station readings come from one grass-covered site per station at five fixed depths, and often show shallower frost than regional figures.
