Frost dates for Riverside
◇ Station-based · 78/100 confidence
Last spring frost · safe
Apr 2
~10% frost risk · typical Feb 16
First fall frost · safe
Nov 22
~10% frost risk · typical Dec 6
Frost-free days
293
Feb 16 → Dec 6
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 — 293 DAYS
FEB 16
DEC 6