Frost Dates for Moreno Valley, CA

Based on data from Redlands weather station, 7 miles away

Elevation: 1631 ft

Frost Dates

Last Spring Frost (50%) A 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. January 27
First Fall Frost (50%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. December 19

30% Probability

Only a 30% chance of frost remaining by this date. Use these dates for a safer planting window, especially for tender plants sensitive to cold.
Last Spring Frost February 10
First Fall Frost December 11

Hard Freeze (28°F)

Last Spring Hard Freeze January 7
First Fall Hard Freeze January 1
33.94°N, 117.23°W © OpenStreetMap

Growing Season

327 Days January 27 to December 19

USDA Hardiness Zone

Hardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.
Zone 9b

Avg. annual minimum: 25 to 30°F

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Csa Hot-Summer Mediterranean

Hot, dry summers and mild, wet winters. Classic Mediterranean climate ideal for grapes, olives, tomatoes, and herbs. Summer irrigation is usually necessary.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January67°54°41°
February67°55°42°
March71°58°45°
April76°62°48°
May80°66°52°
June89°72°56°
July95°79°63°
August96°80°63°
September92°76°60°
October83°68°53°
November75°60°45°
December67°53°40°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January6.3
February4.8
March4.9
April3.1
May0.8
June0.0
July0.0
August0.0
September0.0
October0.6
November3.1
December5.3

Sunrise / Sunset

Daylight Pacific Time (PT) Longest: 14h 16m · Shortest: 9h 44m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Pacific Time (PT))
Month Sunrise Sunset Daylight
January6:59 AM4:57 PM9h 58m
February6:40 AM5:27 PM10h 47m
March7:06 AM6:51 PM11h 45m
April6:23 AM7:15 PM12h 51m
May5:52 AM7:38 PM13h 46m
June5:41 AM7:57 PM14h 15m
July5:53 AM7:56 PM14h 04m
August6:15 AM7:31 PM13h 16m
September6:37 AM6:49 PM12h 12m
October7:00 AM6:08 PM11h 08m
November6:28 AM4:40 PM10h 11m
December6:52 AM4:37 PM9h 44m

Nearby Stations

Riverside Citrus Exp, CA January 10 - January 2 Riverside Fire Stn 3, CA January 9 - December 25 Lake Arrowhead, CA May 5 - November 2 Riverside Muni AP, CA January 9 - December 30 San Jacinto, CA January 31 - December 10 Big Bear Lake, CA May 27 - October 4

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