Frost Dates for Sun City, AZ

Based on data from Youngtown weather station, 2 miles away

Elevation: 1142 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 20
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 15

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 2
First Fall Frost December 8

Hard Freeze (28°F)

Last Spring Hard Freeze January 3
First Fall Hard Freeze December 29
33.60°N, 112.27°W © OpenStreetMap

Growing Season

330 Days January 20 to December 15

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.
BWh Hot Desert

Very hot and extremely dry with minimal rainfall. Irrigation is essential for any gardening. Heat-tolerant crops and desert-adapted plants thrive; shade structures help in peak summer.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January65°53°41°
February69°56°44°
March77°63°49°
April84°69°55°
May93°78°64°
June102°87°72°
July105°92°80°
August104°91°79°
September98°86°73°
October87°73°60°
November74°61°48°
December64°52°40°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January3.5
February4.0
March3.3
April0.0
May0.0
June0.0
July1.4
August3.7
September0.5
October0.0
November0.0
December2.6

Sunrise / Sunset

Daylight Mountain Standard Time (MST) Longest: 14h 14m · Shortest: 9h 46m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Mountain Standard Time (MST))
Month Sunrise Sunset Daylight
January7:38 AM5:39 PM10h 00m
February7:20 AM6:08 PM10h 48m
March6:46 AM6:31 PM11h 45m
April6:04 AM6:55 PM12h 51m
May5:33 AM7:18 PM13h 45m
June5:23 AM7:36 PM14h 13m
July5:34 AM7:36 PM14h 01m
August5:56 AM7:11 PM13h 15m
September6:18 AM6:30 PM12h 12m
October6:40 AM5:49 PM11h 08m
November7:08 AM5:21 PM10h 13m
December7:32 AM5:18 PM9h 47m

Nearby Stations

Litchfield Park, AZ January 7 - December 24 Phoenix Deer Valley Muni AP, AZ January 8 - December 25 Wittmann 1se, AZ February 5 - December 11 South Phoenix, AZ January 21 - December 16 Laveen 3 Sse, AZ January 14 - December 22 Phoenix Sky Harbor Intl AP, AZ January 5 - January 3

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