Bield:Farm
Frost dates · Minnesota

Minnesota frost dates,
county by county.

Last spring frost and first fall frost probability data for all 87 counties in Minnesota, computed from the NOAA 1991–2020 Climate Normals. Every county page surfaces the full probability table at three temperature thresholds plus crop-specific planting guidance.

Variation across Minnesota

33 days separate the earliest and latest counties.

The median last spring frost in Winona County is April 9 — 33 days earlier than Carlton County at May 12. Statewide averages aren't useful planting tools; pick your county below for the data that actually applies to your fields.

By geography

Minnesota counties on the map.

Each dot is a county. Click for full frost-date detail. Color shows last-spring-frost timing — sage = earliest, amber = latest.

ListMap
Polk County · Spring Apr 30 · Fall Oct 8 · 161-day seasonRed Lake County · Spring Apr 30 · Fall Oct 8 · 161-day seasonMeeker County · Spring Apr 27 · Fall Oct 10 · 166-day seasonIsanti County · Spring Apr 21 · Fall Oct 15 · 177-day seasonRock County · Spring Apr 21 · Fall Oct 16 · 178-day seasonCarver County · Spring Apr 23 · Fall Oct 16 · 176-day seasonKandiyohi County · Spring Apr 19 · Fall Oct 19 · 183-day seasonCottonwood County · Spring Apr 19 · Fall Oct 21 · 185-day seasonFreeborn County · Spring Apr 15 · Fall Oct 19 · 187-day seasonBenton County · Spring May 1 · Fall Oct 7 · 159-day seasonDouglas County · Spring Apr 21 · Fall Oct 19 · 181-day seasonMurray County · Spring Apr 28 · Fall Oct 8 · 163-day seasonPipestone County · Spring Apr 25 · Fall Oct 12 · 170-day seasonCarlton County · Spring May 12 · Fall Oct 3 · 144-day seasonAitkin County · Spring May 4 · Fall Oct 8 · 157-day seasonRice County · Spring Apr 26 · Fall Oct 13 · 170-day seasonWatonwan County · Spring Apr 18 · Fall Oct 17 · 182-day seasonOtter Tail County · Spring Apr 28 · Fall Oct 15 · 170-day seasonPennington County · Spring May 5 · Fall Oct 8 · 156-day seasonMahnomen County · Spring Apr 29 · Fall Oct 8 · 162-day seasonRoseau County · Spring May 7 · Fall Oct 3 · 149-day seasonMartin County · Spring Apr 16 · Fall Oct 24 · 191-day seasonBeltrami County · Spring May 2 · Fall Oct 15 · 166-day seasonSt. Louis County · Spring May 3 · Fall Oct 13 · 163-day seasonDodge County · Spring May 2 · Fall Oct 5 · 156-day seasonLe Sueur County · Spring Apr 22 · Fall Oct 13 · 174-day seasonSteele County · Spring Apr 25 · Fall Oct 18 · 176-day seasonNobles County · Spring Apr 23 · Fall Oct 15 · 175-day seasonSibley County · Spring Apr 14 · Fall Oct 24 · 193-day seasonOlmsted County · Spring Apr 18 · Fall Oct 17 · 182-day seasonLyon County · Spring Apr 27 · Fall Oct 13 · 169-day seasonRenville County · Spring Apr 27 · Fall Oct 10 · 166-day seasonTodd County · Spring May 4 · Fall Oct 5 · 154-day seasonCook County · Spring May 4 · Fall Oct 24 · 173-day seasonLincoln County · Spring Apr 27 · Fall Oct 13 · 169-day seasonRedwood County · Spring Apr 24 · Fall Oct 13 · 172-day seasonLake County · Spring May 2 · Fall Oct 10 · 161-day seasonBrown County · Spring Apr 24 · Fall Oct 12 · 171-day seasonKittson County · Spring Apr 30 · Fall Oct 6 · 159-day seasonLac qui Parle County · Spring Apr 23 · Fall Oct 12 · 172-day seasonWaseca County · Spring Apr 20 · Fall Oct 14 · 177-day seasonHouston County · Spring Apr 18 · Fall Oct 23 · 188-day seasonJackson County · Spring Apr 23 · Fall Oct 14 · 174-day seasonWashington County · Spring Apr 20 · Fall Oct 23 · 186-day seasonChisago County · Spring May 6 · Fall Oct 4 · 151-day seasonFaribault County · Spring Apr 20 · Fall Oct 17 · 180-day seasonBlue Earth County · Spring Apr 19 · Fall Oct 20 · 184-day seasonNicollet County · Spring Apr 20 · Fall Oct 18 · 181-day seasonStevens County · Spring Apr 24 · Fall Oct 11 · 170-day seasonMille Lacs County · Spring Apr 28 · Fall Oct 11 · 166-day seasonMower County · Spring Apr 27 · Fall Oct 9 · 165-day seasonGrant County · Spring Apr 24 · Fall Oct 11 · 170-day seasonHubbard County · Spring May 4 · Fall Oct 4 · 153-day seasonBig Stone County · Spring Apr 21 · Fall Oct 19 · 181-day seasonWadena County · Spring Apr 30 · Fall Oct 10 · 163-day seasonChippewa County · Spring Apr 26 · Fall Oct 10 · 167-day seasonWabasha County · Spring Apr 28 · Fall Oct 12 · 167-day seasonKoochiching County · Spring May 10 · Fall Oct 1 · 144-day seasonNorman County · Spring May 2 · Fall Oct 6 · 157-day seasonBecker County · Spring Apr 26 · Fall Oct 13 · 170-day seasonGoodhue County · Spring Apr 28 · Fall Oct 8 · 163-day seasonRamsey County · Spring Apr 14 · Fall Oct 31 · 200-day seasonYellow Medicine County · Spring Apr 26 · Fall Oct 10 · 167-day seasonFillmore County · Spring May 4 · Fall Oct 5 · 154-day seasonWright County · Spring Apr 19 · Fall Oct 21 · 185-day seasonWilkin County · Spring Apr 24 · Fall Oct 14 · 173-day seasonSwift County · Spring Apr 26 · Fall Oct 12 · 169-day seasonMarshall County · Spring Apr 28 · Fall Oct 12 · 167-day seasonPine County · Spring Apr 30 · Fall Oct 10 · 163-day seasonScott County · Spring Apr 22 · Fall Oct 16 · 177-day seasonClearwater County · Spring May 4 · Fall Oct 5 · 154-day seasonCrow Wing County · Spring May 2 · Fall Oct 8 · 159-day seasonDakota County · Spring Apr 22 · Fall Oct 17 · 178-day seasonItasca County · Spring May 3 · Fall Oct 14 · 164-day seasonCass County · Spring Apr 26 · Fall Oct 18 · 175-day seasonKanabec County · Spring Apr 28 · Fall Oct 9 · 164-day seasonSherburne County · Spring Apr 28 · Fall Oct 8 · 163-day seasonWinona County · Spring Apr 9 · Fall Oct 29 · 203-day seasonPope County · Spring May 1 · Fall Oct 6 · 158-day seasonMcLeod County · Spring Apr 20 · Fall Oct 15 · 178-day seasonLake of the Woods County · Spring May 4 · Fall Oct 6 · 155-day seasonMorrison County · Spring Apr 24 · Fall Oct 16 · 175-day seasonClay County · Spring Apr 28 · Fall Oct 14 · 169-day seasonHennepin County · Spring Apr 19 · Fall Oct 22 · 186-day seasonAnoka County · Spring Apr 25 · Fall Oct 13 · 171-day seasonTraverse County · Spring Apr 21 · Fall Oct 20 · 182-day seasonStearns County · Spring Apr 24 · Fall Oct 18 · 177-day season
Last spring frostEarliestMedianLatest
87 counties · click any county for full frost data
Alphabetical

All Minnesota counties — A to Z.

Frost dates set the calendar. Bield: Farm runs it.

Pair these dates with live forecasts for your specific farm location. Bield: Farm logs your soil tests, planting dates, weather, and yield outcomes year over year.

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