Frost dates for Anchorage

◇ Station-based · 85/100 confidence

Last spring frost · safe

May 8

~10% frost risk · typical Apr 30

First fall frost · safe

Sep 12

~10% frost risk · typical Sep 26

Frost-free days

148

Apr 30 → Sep 26

Climate zone

Continental, dry cold summer

Köppen Dsc

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 — 148 DAYS

APR 30

SEP 26