Frost dates for Baltimore

◇ Station-based · 84/100 confidence

Last spring frost · safe

Mar 31

~10% frost risk · typical Mar 21

First fall frost · safe

Nov 10

~10% frost risk · typical Nov 27

Frost-free days

249

Mar 21 → Nov 27

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 — 249 DAYS

MAR 21

NOV 27