Frost Dates for Happy Jack Rs, AZ

Elevation: 2280 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. June 1
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 3

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 June 5
First Fall Frost September 29

Hard Freeze (28°F)

Last Spring Hard Freeze May 17
First Fall Hard Freeze October 14
34.74°N, 111.41°W © OpenStreetMap

Growing Season

124 Days June 1 to October 3

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 6a

Avg. annual minimum: −10 to −5°F

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dsb Warm-Summer Continental (Dry Summer)

Warm, dry summers and cold, snowy winters. Common in mountain regions. Moderate growing season with irrigation needs in summer.

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
January40°30°19°
February42°31°20°
March49°37°25°
April56°43°29°
May65°50°36°
June75°59°43°
July78°65°51°
August75°63°51°
September71°57°44°
October61°47°34°
November50°37°25°
December41°30°19°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January7.2
February7.1
March8.3
April5.3
May3.1
June0.6
July2.9
August3.6
September4.1
October5.2
November6.6
December6.9

Sunrise / Sunset

Daylight Longest: 14h 20m · Shortest: 9h 40m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:03 AM4:57 PM9h 55m
February6:38 AM5:22 PM10h 45m
March6:08 AM5:52 PM11h 44m
April5:34 AM6:26 PM12h 53m
May5:05 AM6:55 PM13h 49m
June4:50 AM7:10 PM14h 19m
July4:57 AM7:03 PM14h 07m
August5:21 AM6:39 PM13h 18m
September5:54 AM6:06 PM12h 12m
October6:27 AM5:33 PM11h 06m
November6:56 AM5:04 PM10h 09m
December7:10 AM4:50 PM9h 41m

Nearby Stations

Blue Ridge Rs, AZ May 31 - October 2 Mund'S Park, AZ June 10 - September 27 Sedona, AZApril 1 - November 17 Oak Creek Canyon, AZ April 14 - November 5 Montezuma Castle Nm, AZ April 16 - October 30 Natural Brg, AZ April 9 - November 10

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