Average Last Freeze/Frost Dates for the Northland

The average date for the last freeze/frost at the Duluth International Airport is May 17th. The latest date for a freeze/frost at Duluth was on June 21st, 1992 when the temperature dropped to 30 degrees. The earliest was April 15th, 1899. 14 out of 132 years (11%) had a temperature of 32 degrees or below in the month of June at Duluth. Here are some other average last freeze/frost dates for locations across the Northland.


City State Avg. Last Freeze/Frost Date
Duluth Harbor MN May 1st
Brainerd MN May 11th
Two Harbors MN May 13th
Grand Marais MN May 16th
Superior WI May 16th
Grantsburg WI May 16th
Duluth Airport MN May 17th
Aitkin MN May 18th
Ely MN May 19th
Hinckley MN May 19th
Grand Rapids MN May 21st
Babbitt MN May 21st
International Falls MN May 25th
Port Wing WI May 25th
Danbury  WI May 26th
Moose Lake MN May 28th
Hibbing MN May 29th
Virginia MN May 29th
Gurney WI May 31st
Solon Springs WI June 1st
Cloquet MN June 2nd
Ashland WI June 2nd
Winter WI June 3rd
Gordon WI June 3rd
Cook MN June 4th

Return to News Archive

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.