Frost dates for Cheyenne

◇ Station-based · 89/100 confidence

Last spring frost · safe

May 24

~10% frost risk · typical May 13

First fall frost · safe

Sep 13

~10% frost risk · typical Oct 2

Frost-free days

136

May 13 → Oct 2

Climate zone

Cold semi-arid

Köppen BSk

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 — 136 DAYS

MAY 13

OCT 2