When Is the Last Frost?

Conrath, WI frost dates

Last spring frostMay 27median date
First fall frostSep 22median date
Growing season118 daysfrost-free
Hardiness zone4bZone 4b

How Conrath compares

Frost probability

Last spring frost
Chance of frost afterDate
90% (early)May 14
50% (median)May 27
10% (safe for tender plants)June 8
First fall frost
Chance of frost beforeDate
10% (early)September 6
50% (median)September 22
90% (late)October 4

Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.

Planting calendar for Conrath, WI

Conrath, WI frost dates — last frost May 27, first frost Sep 22, zone 4b. whenisthelastfrost.com

Crop
JFMAMJJASOND
Start indoors: Mar 4 to Mar 18Transplant outside: Apr 29 to May 13
Start indoors: Mar 18 to Apr 1Transplant outside: Jun 10 to Jun 24
Start indoors: Mar 18 to Apr 1Transplant outside: Jun 10 to Jun 24
Start indoors: Apr 1 to Apr 15Transplant outside: Jun 3 to Jun 17
Start indoors: Apr 1 to Apr 15Transplant outside: May 6 to May 20Sow outdoors: Apr 29 to Jun 3Plant for fall: Jul 28 to Aug 25
Start indoors: Apr 1 to Apr 15Transplant outside: Apr 29 to May 13Sow outdoors: Apr 29 to May 13Plant for fall: Jul 14 to Aug 4
Start indoors: Apr 1 to Apr 15Transplant outside: May 13 to May 27Plant for fall: Jun 16 to Jul 7
Start indoors: Apr 1 to Apr 15Transplant outside: May 6 to May 20Plant for fall: Jun 16 to Jul 7
Start indoors: Apr 1 to Apr 15Transplant outside: May 13 to May 27Plant for fall: Jun 16 to Jul 7
Start indoors: Apr 15 to Apr 29Transplant outside: Jun 17 to Jul 1Sow outdoors: Jun 17 to Jul 1
Start indoors: Apr 15 to Apr 29Transplant outside: Jun 3 to Jun 17
Sow outdoors: Apr 15 to May 6Plant for fall: Jun 30 to Jul 21
Sow outdoors: Apr 15 to May 6Plant for fall: Jul 28 to Aug 18
Sow outdoors: Apr 22 to Jun 3Plant for fall: Aug 11 to Sep 1
Start indoors: Apr 29 to May 6Transplant outside: Jun 10 to Jun 17Sow outdoors: Jun 3 to Jun 17Plant for fall: Jul 7 to Jul 21
Start indoors: Apr 29 to May 6Sow outdoors: Jun 3 to Jun 17Plant for fall: Jul 14 to Jul 28
Start indoors: Apr 29 to May 6Sow outdoors: Jun 3 to Jun 17
Start indoors: Apr 29 to May 6Transplant outside: Jun 10 to Jun 24
Sow outdoors: May 6 to Jun 3Plant for fall: Jun 30 to Jul 14
Sow outdoors: May 6 to Jun 3Plant for fall: Jul 14 to Jul 28
Sow outdoors: May 6 to May 27
Sow outdoors: May 13 to Jun 10Plant for fall: Jul 14 to Jul 28
Sow outdoors: May 13 to Jun 3Plant for fall: Jul 28 to Aug 18
Sow outdoors: Jun 3 to Jun 24
Sow outdoors: Jun 3 to Jun 17
Transplant outside: Jun 10 to Jul 1
Plant for fall: Sep 8 to Oct 13
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates

When to plant vegetables in Conrath, WI

CropStart indoorsTransplantSow outdoorsFall crop
OnionsMar 4 – Mar 18Apr 29 – May 13——
PeppersMar 18 – Apr 1Jun 10 – Jun 24——
EggplantMar 18 – Apr 1Jun 10 – Jun 24——
TomatoesApr 1 – Apr 15Jun 3 – Jun 17——
LettuceApr 1 – Apr 15May 6 – May 20Apr 29 – Jun 3Jul 28 – Aug 25
KaleApr 1 – Apr 15Apr 29 – May 13Apr 29 – May 13Jul 14 – Aug 4
BroccoliApr 1 – Apr 15May 13 – May 27—Jun 16 – Jul 7
CabbageApr 1 – Apr 15May 6 – May 20—Jun 16 – Jul 7
CauliflowerApr 1 – Apr 15May 13 – May 27—Jun 16 – Jul 7
OkraApr 15 – Apr 29Jun 17 – Jul 1Jun 17 – Jul 1—
BasilApr 15 – Apr 29Jun 3 – Jun 17——
Peas——Apr 15 – May 6Jun 30 – Jul 21
Spinach——Apr 15 – May 6Jul 28 – Aug 18
Radishes——Apr 22 – Jun 3Aug 11 – Sep 1
CucumbersApr 29 – May 6Jun 10 – Jun 17Jun 3 – Jun 17Jul 7 – Jul 21
Zucchini & Summer SquashApr 29 – May 6—Jun 3 – Jun 17Jul 14 – Jul 28
Winter Squash & PumpkinsApr 29 – May 6—Jun 3 – Jun 17—
Melons & WatermelonApr 29 – May 6Jun 10 – Jun 24——
Carrots——May 6 – Jun 3Jun 30 – Jul 14
Beets——May 6 – Jun 3Jul 14 – Jul 28
Potatoes——May 6 – May 27—
Swiss Chard——May 13 – Jun 10Jul 14 – Jul 28
Cilantro——May 13 – Jun 3Jul 28 – Aug 18
Green Beans——Jun 3 – Jun 24—
Sweet Corn——Jun 3 – Jun 17—
Sweet Potatoes—Jun 10 – Jul 1——
Garlic———Sep 8 – Oct 13

Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.

About these dates

Based on 1991–2020 NOAA climate normals for the Ladysmith 3w, WI weather station, 13 km away (elevation 1,129 ft (344 m)).

Frost dates near Conrath

Frequently asked questions

When is the last frost in Conrath, WI?

The median last spring frost in Conrath, WI is May 27. There is still about a 10% chance of frost after June 8, so wait until then to plant frost-tender crops like tomatoes and peppers.

When is the first frost in Conrath, WI?

The median first fall frost is September 22, with about a 10% chance of frost before September 6.

How long is the growing season in Conrath, WI?

About 118 days between the median last spring frost and first fall frost.

What planting zone is Conrath, WI?

Conrath, WI is in USDA hardiness zone 4b.

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