Frost Dates for Coolidge, AZ

Based on data from Casa Grande Nm weather station, 2 miles away

Elevation: 1427 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. February 17
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. November 29

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 28
First Fall Frost November 22

Hard Freeze (28°F)

Last Spring Hard Freeze January 26
First Fall Hard Freeze December 12
32.98°N, 111.52°W © OpenStreetMap

Growing Season

286 Days February 17 to November 29

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 9a

Avg. annual minimum: 20 to 25°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 Light Frost (32°F)
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January68°52°37°
February71°56°40°
March78°62°45°
April86°69°51°
May95°77°59°
June105°87°68°
July107°92°77°
August105°91°77°
September101°85°70°
October91°73°56°
November78°61°44°
December67°52°36°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January3.8
February4.0
March2.7
April0.0
May0.0
June0.0
July2.7
August2.7
September1.6
October0.0
November0.0
December4.1

Sunrise / Sunset

Daylight Mountain Standard Time (MST) Longest: 14h 11m · Shortest: 9h 49m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Mountain Standard Time (MST))
Month Sunrise Sunset Daylight
January7:34 AM5:37 PM10h 03m
February7:16 AM6:05 PM10h 49m
March6:43 AM6:28 PM11h 45m
April6:02 AM6:51 PM12h 49m
May5:31 AM7:13 PM13h 42m
June5:21 AM7:31 PM14h 10m
July5:32 AM7:31 PM13h 59m
August5:54 AM7:07 PM13h 13m
September6:15 AM6:26 PM12h 12m
October6:37 AM5:46 PM11h 10m
November7:03 AM5:19 PM10h 16m
December7:27 AM5:17 PM9h 50m

Nearby Stations

Florence, AZ January 30 - December 12 Casa Grande, AZ February 5 - December 6 Robson Rch, AZ February 7 - December 3 Eloy 4 Ne, AZ February 24 - November 28 Chandler Heights, AZ February 1 - December 11 Arizona City, AZ February 28 - November 21

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