An arctic front moved through wyoming on Thursday bringing sub zero temperatures to much of the area. The coldest temperatures were reported over the northwest where skies has cleared...Canyon Ranger Station in Yellowstone National Park dropped to 47 below zero.
| County | General Station Name | Temperatures |
|---|---|---|
| Big Horn | Greybull Airport | -21 |
| Big Horn | Shell | -25 |
| Fremont | Shoshoni | -8 |
| Fremont | Riverton | -10 |
| Fremont | Hudson | -10 |
| Fremont | Lander Airport | -11 |
| Fremont | Jeffrey City | -11 |
| Fremont | Lander | -12 |
| Fremont | Riverton Airport | -13 |
| Fremont | South Pass SNOTEL | -18 |
| Fremont | Dubois | -19 |
| Hot Springs | Kirby | -14 |
| Hot Springs | Thermopolis 9 Northeast | -23 |
| Johnson | Buffalo Airport | -16 |
| Lincoln | Afton Airport | -2 |
| Lincoln | Kemmerer Airport | -4 |
| Lincoln | Thayne | -9 |
| Natrona | Casper WWTP | -8 |
| Natrona | Casper Airport | -9 |
| Natrona | Midwest | -10 |
| Park | Pahaska | -33 |
| Park | Crandall Creek | -36 |
| Sublette | Big Piney Airport | -4 |
| Sublette | Boulder Rearing Station | -6 |
| Sweetwater | Rock Springs Airport | -11 |
| Teton | Jackson Airport | -17 |
| Teton | Moose | -18 |
| Washakie | Worland Airport | -17 |
| Washakie | Ten Sleep 16 Southeast | -24 |
| Yellowstone | Mammoth | -25 |
| Yellowstone | East Entrance | -32 |
| Yellowstone | Grant Ranger Station | -32 |
| Yellowstone | Tower Falls Ranger Station | -34 |
| Yellowstone | Lake Yellowstone SNOTEL | -36 |
| Yellowstone | Lake Yellowstone | -36 |
| Yellowstone | Northeast Entrance SNOTEL | -40 |
| Yellowstone | Old Faithful Ranger Station | -42 |
| Yellowstone | Madison Ranger Station | -42 |
| Yellowstone | Canyon Ranger Station | -47 |