Frost dates for San Bernardino

◇ Station-based · 78/100 confidence

Last spring frost · safe

Mar 22

~10% frost risk · typical Feb 23

First fall frost · safe

Nov 25

~10% frost risk · typical Dec 9

Frost-free days

284

Feb 23 → Dec 9

Climate zone

Hot semi-arid

Köppen BSh

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 — 284 DAYS

FEB 23

DEC 9