All states Wyoming
Frost dates in Wyoming
The typical last spring frost and first fall frost for 99 places in Wyoming. Each page has the chance of frost by date and when to plant.
Places in Wyoming
| Place | Last spring frost | First fall frost |
|---|---|---|
| Afton | June 20 | September 1 |
| Albin | May 14 | October 2 |
| Alta | June 14 | September 11 |
| Archer | May 21 | September 24 |
| Baggs | June 1 | September 18 |
| Bairoil | May 21 | September 27 |
| Basin | April 28 | October 10 |
| Big Horn | May 17 | September 28 |
| Bitter Creek | June 1 | September 16 |
| Buffalo | May 24 | September 21 |
| Burlington | May 12 | September 28 |
| Burns | May 14 | September 26 |
| Casper | May 10 | September 29 |
| Centennial | June 2 | September 19 |
| Cheyenne | May 14 | October 1 |
| Cheyenne | May 12 | October 1 |
| Chugwater | May 18 | September 24 |
| Clark | May 18 | September 22 |
| Clearmont | May 14 | September 30 |
| Cody | May 15 | September 25 |
| Deaver | May 6 | October 1 |
| Double Four Rch | June 2 | September 9 |
| Douglas | May 23 | September 22 |
| Dubois | June 1 | September 14 |
| Echeta | May 21 | September 23 |
| Evanston | June 3 | September 25 |
| Fort Laramie | May 14 | September 26 |
| Gillette | May 15 | October 1 |
| Glendo | May 9 | October 5 |
| Glenrock | May 12 | October 1 |
| Granger | May 25 | September 27 |
| Green River | May 24 | September 22 |
| Greybull | May 11 | September 23 |
| Guernsey | May 7 | October 6 |
| Hanna | May 28 | September 13 |
| Hecla | May 27 | September 19 |
| Hulett | May 17 | September 23 |
| Jackson | June 20 | August 31 |
| Jeffrey City | June 1 | September 13 |
| Kaycee | May 18 | September 25 |
| LaGrange | May 14 | October 1 |
| Lance Creek | May 17 | September 25 |
| Lander | May 18 | September 27 |
| Lander | May 13 | October 2 |
| Laramie | May 22 | September 28 |
| Laramie | June 7 | September 4 |
| Laramie | June 2 | September 15 |
| Leo | May 20 | September 28 |
| Lingle | May 20 | September 22 |
| Lost Springs | May 25 | September 15 |
| Lovell | May 9 | September 29 |
| Lusk | May 23 | September 20 |
| Lusk | May 14 | October 1 |
| Lyman | June 14 | September 9 |
| Medicine Bow | June 1 | September 8 |
| Meeteetse | May 29 | September 18 |
| Midwest | May 22 | September 22 |
| Mills | May 26 | September 22 |
| Moorcroft | May 20 | September 23 |
| Moose | June 24 | August 28 |
| Newcastle | May 13 | October 3 |
| Pathfinder Dam | May 9 | October 7 |
| Pavillion | May 21 | September 20 |
| Phillips | May 21 | September 21 |
| Pine Bluffs | May 10 | October 1 |
| Pine Bluffs | May 16 | September 27 |
| Pine Haven | May 23 | September 20 |
| Pinedale | June 9 | September 4 |
| Powder River #2 | May 23 | September 20 |
| Powder Rvr (School) | May 30 | September 22 |
| Ranchester | May 24 | September 18 |
| Rawlins | May 17 | October 2 |
| Riverton | May 12 | September 24 |
| Riverton | May 16 | September 28 |
| Rock Springs | May 24 | September 24 |
| Saratoga | June 2 | September 12 |
| Saratoga | June 12 | September 7 |
| Seminoe Rsvr Usbr | May 12 | October 4 |
| Shell | May 16 | September 24 |
| Sheridan | May 18 | September 24 |
| Shoshoni | May 7 | October 3 |
| Story | May 24 | September 23 |
| Sundance | May 21 | September 25 |
| Sundance | May 23 | September 24 |
| Superior | May 22 | September 28 |
| Sybille Rsch Unit | May 22 | September 24 |
| Ten Sleep | May 22 | September 18 |
| Thermopolis | May 24 | September 16 |
| Thermopolis | May 29 | September 17 |
| Torrington | May 17 | September 28 |
| Torrington | May 11 | September 29 |
| Wamsutter | June 5 | September 14 |
| Wapiti | May 27 | September 25 |
| Weston | May 23 | September 18 |
| Wheatland | May 19 | September 22 |
| Worland | May 4 | October 1 |
| Wright | May 25 | September 23 |
| Yellowstone Park Mammoth | June 3 | September 14 |
| Yoder | May 15 | September 27 |
Typical year: frost is over (spring) or has come (fall) by that date in half of years. "n/a" means frost is too rare there to give a date.