Frost Dates for Holbrook, AZ

Elevation: 1550 m

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. April 22
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. October 24

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 April 29
First Fall Frost October 18

Hard Freeze (28°F)

Last Spring Hard Freeze April 6
First Fall Hard Freeze November 2
34.91°N, 110.15°W © OpenStreetMap

Growing Season

185 Days April 22 to October 24

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 7b

Avg. annual minimum: 5 to 10°F

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
BSk Cold Semi-Arid (Steppe)

Cool to cold with low rainfall and wide temperature swings. Common in the western Great Plains and central Asia. Short growing seasons benefit from season extension techniques.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January51°37°22°
February57°41°25°
March65°48°31°
April72°55°37°
May81°64°46°
June92°73°55°
July94°78°62°
August91°76°61°
September86°70°54°
October75°58°41°
November61°45°29°
December50°36°22°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January2.4
February1.7
March3.1
April0.5
May0.0
June0.0
July2.5
August2.8
September2.4
October2.5
November3.6
December2.8

Sunrise / Sunset

Daylight Mountain Standard Time (MST) Longest: 14h 21m · Shortest: 9h 39m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Mountain Standard Time (MST))
Month Sunrise Sunset Daylight
January7:33 AM5:27 PM9h 54m
February7:13 AM5:57 PM10h 44m
March6:38 AM6:22 PM11h 44m
April5:54 AM6:47 PM12h 53m
May5:22 AM7:12 PM13h 50m
June5:11 AM7:31 PM14h 20m
July5:22 AM7:30 PM14h 08m
August5:45 AM7:04 PM13h 19m
September6:09 AM6:21 PM12h 12m
October6:33 AM5:39 PM11h 06m
November7:02 AM5:10 PM10h 08m
December7:27 AM5:06 PM9h 40m

Nearby Stations

Petrified Forest Np, AZ May 4 - October 16 Painted Desert Np, AZ May 1 - October 20 Snowflake, AZMay 11 - October 10 Winslow Muni AP, AZ April 27 - October 18 Heber (Black Mesa) Rs, AZ May 23 - October 5 Show Low AP, AZMay 5 - October 15

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