Frost dates for Aurora

◇ Station-based · 89/100 confidence

Last spring frost · safe

May 19

~10% frost risk · typical Apr 21

First fall frost · safe

Oct 5

~10% frost risk · typical Oct 17

Frost-free days

175

Apr 21 → Oct 17

Climate zone

Continental, hot summer

Köppen Dfa

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 — 175 DAYS

APR 21

OCT 17