Minnesota frost dates by county and ZIP code
Across 880 Minnesota ZIP codes the average last spring frost runs Apr 21 to Jun 5 and the average first fall frost Sep 8 to Oct 20 (50% odds, 32°F, NOAA 1991–2020 normals), with USDA hardiness zones. Download the table as CSV.
Counties
- Aitkin
- Anoka
- Becker
- Beltrami
- Benton
- Big Stone
- Blue Earth
- Brown
- Carlton
- Carver
- Cass
- Chippewa
- Chisago
- Clay
- Clearwater
- Cook
- Cottonwood
- Crow Wing
- Dakota
- Dodge
- Douglas
- Faribault
- Fillmore
- Freeborn
- Goodhue
- Grant
- Hennepin
- Houston
- Hubbard
- Isanti
- Itasca
- Jackson
- Kanabec
- Kandiyohi
- Kittson
- Koochiching
- Lac qui Parle
- Lake
- Lake of the Woods
- Le Sueur
- Lincoln
- Lyon
- Mahnomen
- Marshall
- Martin
- McLeod
- Meeker
- Mille Lacs
- Morrison
- Mower
- Murray
- Nicollet
- Nobles
- Norman
- Olmsted
- Otter Tail
- Pennington
- Pine
- Pipestone
- Polk
- Pope
- Ramsey
- Red Lake
- Redwood
- Renville
- Rice
- Rock
- Roseau
- Scott
- Sherburne
- Sibley
- St. Louis
- Stearns
- Steele
- Stevens
- Swift
- Todd
- Traverse
- Wabasha
- Wadena
- Waseca
- Washington
- Watonwan
- Wilkin
- Winona
- Wright
- Yellow Medicine
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