Record Setting Cold Wyoming and Surrounding States
As advertised for several days, temperatures this Wednesday morning dropped to levels never experienced in the month of October in many areas of the region, including Star Valley.
Many stations both in Wyoming, Southeastern Idaho and Northern Utah set low temperature records for the month of October.
Following is a map of the minimums around Star Valley this morning. The only area not dipping below zero was near Alpine where winds persisted much of the night.
Minimums Wednesday October 30 2019
The coldest in the valley was at the Afton airport with -11. These temperatures in Star Valley were near or colder than ever observed for the entire month of October.
It was much colder elsewhere in the Cowboy State, including southern Lincoln County.
Following is a comprehensive list of minimums across Western and Central Wyoming this morning compiled by the Riverton NWS.
National Weather Service Riverton WY 936 AM MDT Wed Oct 30 2019 ...24-Hour Low Temperatures Across Western and Central Wyoming... Record-setting cold settled in over western and central Wyoming early Wednesday. A clear sky combined with fresh snow cover in many areas allowed for excellent cooling overnight. Several reporting stations, such as the Rock Springs, Riverton, and Worland airports, set records for the coldest October temperature ever recorded. Location Temp Time/Date Elev. (ft.) ...Big Horn County... Ten Sleep 13.5 NE -17 F 1236 AM 10/30 8027 Greybull 30 E -13 F 0658 PM 10/29 8897 Hyattville 5 ENE -1 F 0252 AM 10/30 5669 Frannie 0 F 1029 PM 10/29 5002 Basin 1 F 0810 AM 10/30 3897 Cowley Airport 3 F 0935 PM 10/29 4083 Lovell 4 F 0502 AM 10/30 3964 Greybull Airport 4 F 0653 AM 10/30 3917 ...Fremont County... Jeffrey City -27 F 0800 AM 10/30 6319 Sweetwater Station 4 SW -26 F 0500 AM 10/30 6591 Jeffrey City -23 F 0730 AM 10/30 6442 Dubois 19 WSW -17 F 0610 AM 10/30 8833 Hudson 4 SSW -16 F 0545 AM 10/30 5148 Dubois 14 NE -15 F 1200 AM 10/30 7365 21.6 W Dubois -15 F 0900 AM 10/29 10358 Union Pass -14 F 1116 PM 10/29 7342 Lava Mountain -14 F 0930 AM 10/29 10141 Riverton - CWC -14 F 0455 AM 10/30 5372 Riverton -13 F 0731 AM 10/30 4950 Fort Washakie 1 SSE -13 F 0645 AM 10/30 5564 23.0 NW Dubois -11 F 0915 AM 10/29 9343 Crowheart -11 F 0215 AM 10/30 6099 Lander 6 NW -11 F 0815 AM 10/30 5760 Lander Airport -10 F 0500 AM 10/30 5565 Riverton 1 S -10 F 1200 AM 10/30 4899 Fort Washakie 10 W -10 F 0901 AM 10/29 9234 South Pass City 8 W -9 F 0350 AM 10/30 8120 Crowheart 10 SE -9 F 0615 AM 10/30 5652 Lander 7 NW -9 F 0401 AM 10/30 5797 Riverton Airport -9 F 0553 AM 10/30 5509 South Pass City 2.4 W -9 F 0148 AM 10/30 8195 Muddy Gap 7 SW -8 F 0950 PM 10/29 7379 Dubois 7 NW -8 F 0145 AM 10/30 7188 Kinnear -8 F 0415 AM 10/30 5413 Dubois Airport -8 F 0155 AM 10/30 7095 Shoshoni -7 F 0745 AM 10/30 4822 Lander 1 S -7 F 0445 AM 10/30 5479 Atlantic City 3 NW -7 F 0645 PM 10/29 8540 Dubois -6 F 0216 AM 10/30 7014 Fort Washakie 6 WNW -6 F 1230 AM 10/30 6120 Hudson 3 NNW -6 F 0646 AM 10/30 5555 Sinks Canyon -6 F 0745 PM 10/29 7083 Pavillion -5 F 0201 AM 10/30 5485 Crowheart 11 WNW -4 F 0630 AM 10/30 6520 Dubois 10 SE -4 F 1230 AM 10/30 6399 Atlantic City 10 NE -2 F 0102 AM 10/30 6581 Boysen Reservoir 1 F 0400 AM 10/30 4708 ...Hot Springs County... Thermopolis 9NE -10 F 0700 AM 10/30 4282 Thermopolis -8 F 0745 AM 10/30 4425 9.9 W Thermopolis -8 F 1250 AM 10/30 4901 Meeteetse 10 S -6 F 0842 PM 10/29 7126 Kirby -3 F 0747 AM 10/30 4350 Boysen Peak 1 F 0215 AM 10/30 7099 ...Johnson County... Story 10 SW -15 F 0615 AM 10/30 8580 Story 6 SE -15 F 1236 AM 10/30 4783 Story 15 WSW -13 F 0215 AM 10/30 8292 Story 5.5 SE -9 F 1250 AM 10/30 4632 Linch -9 F 1201 AM 10/30 4934 20.2 SW Echeta -8 F 0214 AM 10/30 4021 Buffalo -6 F 0810 AM 10/30 4639 Buffalo 18 NW -6 F 0747 PM 10/29 8604 Kaycee 14 SE -6 F 0542 AM 10/30 4990 8.9 NE Mayoworth -4 F 0812 AM 10/30 5240 Ucross 28 SE -4 F 0736 AM 10/30 4605 Kaycee 9 SW -3 F 0830 AM 10/30 4898 Buffalo Airport -3 F 0500 AM 10/30 4905 Barnum 7 SW -3 F 0746 PM 10/29 6439 Kaycee -1 F 0616 AM 10/30 4681 Mayoworth 20 NW 0 F 0845 AM 10/30 8180 Buffalo 6 W 6 F 1045 PM 10/29 5745 ...Lincoln County... Fossil Butte NM -26 F 0630 AM 10/30 6626 2.7 E Sage Junction -21 F 0600 AM 10/30 6377 Kemmerer 2 W -20 F 0300 AM 10/30 6979 4.1 NW Kemmerer -18 F 0600 AM 10/30 6989 Cokeville 12 E -17 F 0645 AM 10/30 7458 5.9 NW Granger -16 F 0500 AM 10/30 6358 10.2 E Turnerville -14 F 0600 AM 10/30 6641 Cokeville -14 F 0830 AM 10/30 6193 3.8 S Cokeville -13 F 0700 AM 10/30 6185 Afton Airport -11 F 0735 AM 10/30 6163 4.1 E Opal -11 F 1200 AM 10/30 6588 Cokeville 3 N -10 F 0730 AM 10/30 6160 16.1 E Turnerville -9 F 0545 AM 10/30 9020 Thayne -9 F 0531 AM 10/30 5948 Kemmerer Airport -9 F 0255 AM 10/30 7127 0.6 NW Afton -8 F 0615 AM 10/30 6210 Etna -8 F 0830 AM 10/30 5692 14.5 E Smoot -8 F 0915 AM 10/29 10854 Afton -7 F 0800 AM 10/30 6248 10.1 E Smoot -6 F 0145 AM 10/30 9379 16.2 NE Turnerville -6 F 1215 AM 10/30 10338 Alpine 4 SSW -6 F 0830 AM 10/30 5673 Etna -5 F 0817 AM 10/30 5823 Cokeville 15 NE -5 F 1200 AM 10/30 8470 Afton -4 F 0846 AM 10/30 6267 Star Valley Ranch -3 F 0815 AM 10/30 6217 Bedford -1 F 0730 AM 10/30 6279 2.2 NW Alpine 1 F 0855 AM 10/30 5633 3.8 E Diamondville 1 F 0200 AM 10/30 6789 ...Natrona County... Alcova 14.5 W -20 F 0700 AM 10/30 5903 Independence Rock -19 F 0745 AM 10/30 5916 Alcova 6.4 W -17 F 0506 AM 10/30 6345 Evansville 4 SE -15 F 0805 AM 10/30 5157 Natrona -13 F 1158 PM 10/29 5594 13.6 N Bar Nunn -11 F 0236 AM 10/30 5656 Powder River -11 F 0600 AM 10/30 5722 Casper 2.1 SW -11 F 0310 AM 10/30 5462 Casper 7 SE -10 F 0145 AM 10/30 5591 Casper-Natrona Co. Airport -9 F 0550 AM 10/30 5320 Bar Nunn -7 F 0235 AM 10/30 5275 Pathfinder Dam -7 F 0100 AM 10/30 5856 Midwest 5.6 W -6 F 0542 AM 10/30 5161 Casper -4 F 0245 AM 10/30 5100 Casper 1SW -4 F 0700 AM 10/30 5143 NE Mills 2 NE -4 F 1212 AM 10/30 5312 Midwest -3 F 0416 AM 10/30 4865 Hiland 16 S -3 F 1210 AM 10/30 6379 ...Park County... NE Entrance - YNP -24 F 0745 AM 10/30 7359 Canyon 1 SW - YNP -23 F 0449 AM 10/30 7899 Lamar Ranger Station - YNP -18 F 0830 AM 10/30 6604 Tower Falls -16 F 0800 AM 10/30 6275 East Entrance 6 W -14 F 0845 AM 10/29 9798 Tower Ranger Station - YNP -14 F 0715 AM 10/30 6266 Cody 10 WNW -13 F 0840 AM 10/29 8400 East Entrance - YNP -12 F 0600 AM 10/30 6954 Crandall -9 F 0612 AM 10/30 6640 Meeteetse 6 SW -9 F 0655 AM 10/30 6224 Pahaska -8 F 0700 AM 10/30 6692 Mammoth 15 WSW -8 F 0449 AM 10/30 7899 Sylvan Pass 14 S - YNP -8 F 0808 AM 10/29 8649 Pahaska 3 E -6 F 0757 AM 10/29 7500 Pahaska -6 F 0245 AM 10/30 6798 Cody 32 SW -6 F 1030 PM 10/29 6200 Cody Airport -5 F 0556 AM 10/30 5138 Meeteetse -4 F 1231 AM 10/30 5748 Cody -4 F 0745 AM 10/30 5154 7.9 N Meeteetse -4 F 0254 AM 10/30 5875 Mammoth -4 F 0715 AM 10/30 6126 Powell 1 F 0815 AM 10/30 4386 Powell Airport 1 F 0815 AM 10/30 5025 Wapiti 1 F 1115 PM 10/29 5398 Clark 2 F 0816 AM 10/30 4270 ...Sublette County... Big Piney 21 W -25 F 0409 AM 10/30 8200 Big Piney Airport -24 F 0653 AM 10/30 6944 Big Piney 4 W -22 F 0300 AM 10/30 6990 Marbleton 9 NW -21 F 0750 AM 10/30 7176 Daniel -21 F 0303 AM 10/30 7022 8.9 S Daniel -21 F 0700 AM 10/30 7056 9.9 NW Daniel -19 F 1000 PM 10/29 7421 Daniel 11 N -19 F 0315 AM 10/30 7470 Big Piney 9 ENE -18 F 0700 AM 10/30 6803 Bondurant -17 F 0600 AM 10/30 6648 Pinedale Airport -17 F 0755 AM 10/30 7105 Boulder 3.3 W -17 F 0700 AM 10/30 6959 Big Piney 11 W -17 F 0600 AM 10/30 7412 Bondurant 2 NW -16 F 0651 AM 10/30 6726 Pinedale -15 F 0810 AM 10/30 7381 Farson 15 NNW -14 F 0600 AM 10/30 6798 Pinedale 1 NE -10 F 0600 AM 10/30 7310 Pinedale 7 NE -8 F 1026 PM 10/29 8529
...Sweetwater County... 15.9 W Red Desert -20 F 0500 AM 10/30 6804 Little America 8 E -19 F 0645 AM 10/30 6129 7.8 E Reliance -19 F 0600 AM 10/30 6338 15.9 W Red Desert -19 F 0500 AM 10/30 6805 Reliance 5.2 SE -17 F 0730 AM 10/30 6345 Point of Rocks 1.1 W -17 F 0342 AM 10/30 6525 Bitter Creek 4 NE -15 F 0300 AM 10/30 6720 Red Desert 9 W -15 F 0212 AM 10/30 6958 Farson -15 F 0746 AM 10/30 6598 Green River 1 E -13 F 0630 AM 10/30 6060 7.3 W Green River -13 F 0738 AM 10/30 6407 24.3 N Granger -13 F 0734 AM 10/30 6496 2.9 NE Granger -13 F 0500 AM 10/30 6253 Superior 6 SE -13 F 0730 AM 10/30 6496 12.8 E Wamsutter -12 F 0500 AM 10/30 7052 Manila Utah 2 NE -11 F 0815 AM 10/30 6060 10.5 E Wamsutter -11 F 0810 AM 10/30 7132 Green River 1.2 NE -11 F 0804 AM 10/30 6325 10.2 E Wamsutter -11 F 0500 AM 10/30 7062 Rock Springs 3 NW -10 F 0609 AM 10/30 6598 9.3 W Green River -10 F 0700 AM 10/30 6290 10.4 E Point of Rocks -9 F 0811 AM 10/30 7132 5.5 SE Point of Rocks -9 F 0200 AM 10/30 6567 Rock Springs 7 SW -9 F 0506 AM 10/30 6252 Green River -8 F 0700 AM 10/30 6160 Rock Springs Airport -8 F 0500 AM 10/30 6745 6.1 SW Rock Springs -7 F 0500 AM 10/30 6211 McKinnon -6 F 0916 PM 10/29 7086 Rock Springs 15 SE -5 F 1244 AM 10/30 7549 La Barge 18 SE -3 F 0945 PM 10/29 6390 ...Teton County... Old Faithful - YNP -25 F 0615 AM 10/30 7319 Togwotee Pass -23 F 0730 AM 10/30 8579 South Entrance 3 W - YNP -23 F 0815 AM 10/30 7040 Snake River R.S. - YNP -22 F 0800 AM 10/30 6882 Bechler Ranger Station -20 F 0800 AM 10/30 6432 South Entrance 19 W - YNP -18 F 0849 AM 10/30 6399 Lake Yellowstone - YNP -15 F 0256 AM 10/30 7839 15.0 SE Moran Junction -14 F 0915 AM 10/29 10305 South Entrance 5 SSW - YNP -14 F 0445 AM 10/30 7020 South Entrance - YNP -13 F 0445 AM 10/30 6898 3.5 NW Teton Village -11 F 0930 AM 10/29 10328 Moran Junction 23 E -11 F 0950 AM 10/29 9609 Moose 4 N -10 F 0658 AM 10/30 6729 6.0 NW Moose -10 F 0945 AM 10/29 9770 16.0 E Moran Junction -8 F 0530 AM 10/30 9189 Moran Jct 7 E -8 F 0652 AM 10/30 7250 6.1 NW Moose -8 F 1015 PM 10/29 9580 3.3 NW Teton Village -7 F 0930 AM 10/29 9657 3.6 W Teton Village -7 F 0915 AM 10/29 9633 Moose -7 F 0800 AM 10/30 6444 Kelly -6 F 0831 AM 10/30 6653 Alta 17 N -5 F 0703 AM 10/30 6830 Hoback -5 F 0824 AM 10/30 5928 Lake - YNP -5 F 0415 AM 10/30 7875 2.7 NW Teton Village -4 F 0730 AM 10/30 8225 Jackson -4 F 0800 AM 10/30 6240 Jackson Dam -4 F 0530 AM 10/30 6776 1.9 NW Teton Village -2 F 0830 AM 10/30 6610 Wilson 4.3 W -2 F 0810 AM 10/30 8428 Alta 3 F 0245 AM 10/30 6430 ...Washakie County... Ten Sleep 16SSE -22 F 0700 AM 10/30 4680 Big Trails 15 SE -14 F 0230 AM 10/30 7220 Ten Sleep 12 ENE -10 F 0714 AM 10/29 8202 Ten Sleep -6 F 0815 AM 10/30 4470 Worland 10 SSE -6 F 0617 AM 10/30 4520 Big Trails 15 SSW -5 F 0640 PM 10/29 6554 Worland Airport -4 F 0500 AM 10/30 4190 Worland -3 F 0815 AM 10/30 4400 Reliance 5 SE (WYDOT) 0 F 0745 AM 10/30 4064 Observations are collected from a variety of sources with varying equipment and exposures. We thank all volunteer weather observers for their dedication. Not all data listed are considered official.
However the infamous weather station at Peters Sink(where nobody lives)
located near the highway from Bear Lake to Logan Utah dipped to a level
never recorded in the month of October in the lower 48 states.
Following is a graph of Peter Sinks temperatures for the last 3 days.
The mercury fell to -44F this morning!
The following map is the 500 mb chart for this morning displaying the extraordinarily deep trough over the Rockies.
