How cold? 49 below zero Sunday morning in northern Minnesota

Frost forms on a window as temperatures dip below zero.
Frost forms on a window as temperatures dip below zero in December 2017.
Euan Kerr | MPR News 2017

Temperatures in northern Minnesota dropped to near 50 below zero on Sunday morning — that's air temperature, not counting the wind.

The National Weather Service in Duluth relayed a report of 49 degrees below zero at Kabetogama in northern St. Louis County. A few miles away, a weather station near Ash Lake reported 48 below.

Other morning lows included 46 below at International Falls, Babbitt, Celina, and Sea Gull Lake on the Gunflint Trail; and 45 below at Embarrass and Brimson.

The low at International Falls sets a record for the date; the Weather Service reported it's the fifth-lowest temperature on record all-time for the city on the Canadian border. The previous Jan. 27 record low temperature was 36 below, set in 1966.

Hibbing also set a record on Sunday morning, with a low of 40 below.

Wind chill reports included 57 below zero at the Grand Marais airport, 54 below at International Falls and 51 below at the Grand Marais harbor.

The cold is just getting started, as another shot of arctic air is forecast to sweep across the state for Tuesday, Wednesday and Thursday. Lows may reach the 20s below zero — or lower — across all of Minnesota by midweek, with highs remaining below zero. West-northwest winds will make it feel even colder.

Here's a roundup of low temperature reports from across Minnesota on Sunday morning; these are air temperatures, not factoring in the wind:

  1. 49 below zero — Kabetogama

  2. 48 below zero — Ash Lake

  3. 46 below zero — Babbitt, Celina, Sea Gull Lake

  4. 45 below zero — International Falls, Embarrass, Brimson

  5. 44 below zero — Crane Lake, Cotton

  6. 43 below zero — Effie

  7. 42 below zero — Orr, Birchdale

  8. 41 below zero — Ely, Gunflint Lake, Skibo

  9. 40 below zero — Hibbing, Bigfork, Littlefork, Margie

  10. 39 below zero — Twig, Loman

  11. 38 below zero — Eveleth, Cook, Makinen

  12. 37 below zero — Kelliher, Jacobson

  13. 36 below zero — Bemidji, Baudette

  14. 35 below zero — Warroad, Waskish, Aurora, Cass Lake, Hill City, Northome, Longville

  15. 34 below zero — Park Rapids, Wright, Inger

  16. 33 below zero — Fosston, Roseau, Grand Rapids, Aitkin, Grand Marais airport, Isabella, Kettle River, Emily, Pine River, Saginaw

  17. 32 below zero — Walker, Grand Portage, Hovland, Chisholm, Deer River

  18. 31 below zero — Silver Bay, Northome

  19. 30 below zero — Thief River Falls, Brainerd, Federal Dam, Moose Lake, Side Lake

  20. 29 below zero — Cloquet, Bruno, Sturgeon Lake, Wadena, Staples

  21. 27 below zero — Grand Marais harbor, Virginia, Two Harbors, Long Prairie, Melrose

  22. 26 below zero — Hallock, Crookston, Esko, McGregor

  23. 24 below zero — Detroit Lakes, Hinckley, Grand Marais harbor, Benson, Little Falls

  24. 22 below zero — Duluth airport, Fergus Falls, Morris, Paynesville

  25. 20 below zero — Willmar, Mora, Princeton

  26. 18 below zero — St. Cloud, Duluth harbor, Albert Lea, Cambridge, Glencoe, Red Wing, Waseca, Owatonna

  27. 17 below zero — Lakeville, Litchfield, Buffalo, New Ulm

  28. 16 below zero — Mankato, Maple Lake

  29. 15 below zero — Montevideo, Madison

  30. 8 below zero — Minneapolis-St. Paul International Airport