Frost dates for Oklahoma City

◇ Station-based · 88/100 confidence

Last spring frost · safe

Apr 15

~10% frost risk · typical Apr 3

First fall frost · safe

Oct 18

~10% frost risk · typical Nov 5

Frost-free days

223

Apr 3 → Nov 5

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 — 223 DAYS

APR 3

NOV 5