Frost dates for Green Bay

◇ Station-based · 88/100 confidence

Last spring frost · safe

May 16

~10% frost risk · typical May 4

First fall frost · safe

Sep 21

~10% frost risk · typical Oct 5

Frost-free days

152

May 4 → Oct 5

Climate zone

Continental, warm summer

Köppen Dfb

The growing year

Frost-bounded season with crops mapped onto the 12-month axis.

Frost risk Growing Harvest

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

FROST

GROWING SEASON — 152 DAYS

MAY 4

OCT 5