Frost dates for Tucson

◇ Station-based · 83/100 confidence

Last spring frost · safe

Mar 17

~10% frost risk · typical Feb 27

First fall frost · safe

Nov 13

~10% frost risk · typical Nov 27

Frost-free days

278

Feb 27 → Nov 27

Climate zone

Hot desert

Köppen BWh

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 — 278 DAYS

FEB 27

NOV 27