Frost dates for Birmingham

◇ Station-based · 89/100 confidence

Last spring frost · safe

Apr 11

~10% frost risk · typical Mar 27

First fall frost · safe

Nov 1

~10% frost risk · typical Nov 11

Frost-free days

229

Mar 27 → Nov 11

Climate zone

Humid subtropical

Köppen Cfa

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 — 229 DAYS

MAR 27

NOV 11