Frost/Freeze Headlines Begin May 15th

Recent rains and some warmth have resulted in the beginning of the growing season across Northern Lower Michigan, with sensitive plants becoming more vulnerable to freezing temperatures. As such, the National Weather Service will begin issuing frost and freeze products for all of Northern Lower Michigan on Friday, May 15th..

These products will begin on Monday, May 25th for Eastern Upper Michigan.

Frost and freeze products are defined as frost advisories, freeze watches, and freeze warnings.

For reference, below is a look at average last dates of 32 degree temperature readings for selected sites across northern Michigan. Data is based on 1981-2010 averages.

Location	Average Date of Last 32ºF Reading	Location	Average Date of Last 32ºF Reading
Tahquamenon Falls	June 13th	Gladwin	May 13th
Pellston	May 28th	East Tawas	May 14th
Grayling	June 1st	Manistee	May 18th
Cadillac	May 28th	Traverse City	May 17th
Trout Lake	June 2nd	Whitefish Point	May 28th
Houghton Lake	May 20th	Cheboygan	May 18th
Boyne Falls	May 29th	Rogers City	May 13th
Gaylord	May 23rd	Frankfort	May 3rd
Kalkaska	May 26th	Petoskey	May 7th
Mio	May 24th	Harrisville	May 8th
West Branch	May 20th	St. Ignace	May 8th
Alpena	May 22nd	Detour Village	May 6th
Sault Ste Marie	May 23rd	Charlevoix	April 29th

Typical Dates of Last Frost

Average last frost