May 31st Brought Unseasonably Cold Morning Lows Across the U.P.

A large area of high pressure trekked across the Upper Great Lakes region on Saturday night.  With is came an unseasonably cold airmass and clear skies for most of the overnight period.  This allowed low temperatures to plummet to well below normal late Spring lows.  Below are some reported values from across the Upper Peninsula.

In general, temperatures ranged from 27 to 32 degrees across the U.P., but there were isolated exceptions.  Some sites near Lake Superior, and most of the sites located along Lake Michigan reported temperatures above freezing.  And several inland forested areas reported temperatures in the low 20s.  Very cold temperatures may have been more widespread in the inland U.P., but observations are limited in remote areas. 

* New Record Low Temperature at the Marquette NWS in Negaunee

* Coldest reported temperature, not only in the U.P., but in the U.S. on Saturday morning! 

LOW TEMP

LOCATION

COUNTY

     

28

ONTONAGON

ONTONAGON

34

ONTONAGON (CMAN)

ONTONAGON

31

IRONWOOD

GOGEBIC

27

WATERSMEET

GOGEBIC

26

WAKEFIELD

GOGEBIC

28

MOHAWK

KEWEENAW

32

AHMEEK

KEWEENAW

25

WINDIGO

KEWEENAW (ISLE ROYALE)

31

OJIBWAY

KEWEENAW (ISLE ROYALE)

27

TWIN LAKES

HOUGHTON

38

LAURIUM

HOUGHTON

28

WATTON

BARAGA

32

SKANEE 3SW

BARAGA

24

PELKIE

BARAGA

24

KENTON

BARAGA

27

STAMBAUGH 2SSE

IRON

37

NORWAY

DICKINSON

36

BIG BAY (CMAN)

MARQUETTE

27

CHAMPION

MARQUETTE

*29

NWS MARQUETTE

MARQUETTE

30

GWINN

MARQUETTE

39

GRAND MARAIS (CMAN)

ALGER

34

MUNISING

ALGER

29

MUNISING EAST

ALGER

23

DOE LAKE

ALGER

29

LA BRACHE

MENOMINEE

30

WAUSAUKEE

MARINETTE (WI)

37

FAIRPORT (CMAN)

DELTA

29

GARDEN CORNERS

DELTA

32

BARK RIVER

DELTA

34

STONINGTON (COOP)

DELTA

22

STONINGTON (RAWS)

DELTA

29

RAPID RIVER 4SSE

DELTA

30

ELKHORN

SCHOOLCRAFT

31

SENEY

SCHOOLCRAFT

35

MANISTIQUE WWTP

SCHOOLCRAFT

30

MCMILLAN 2S

LUCE

*21

SPINCICH LAKE

LUCE

29

NEWBERRY 1N

LUCE

28

REXTON

MACKINAC

29

RACO

CHIPPEWA

31

RUDYARD

CHIPPEWA



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