Frost Dates for Star Valley, AZ

Based on data from Payson weather station, 5 miles away

Elevation: 4659 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. April 29
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 May 7
First Fall Frost October 19

Hard Freeze (28°F)

Last Spring Hard Freeze April 10
First Fall Hard Freeze November 6
34.26°N, 111.26°W © OpenStreetMap

Growing Season

178 Days April 29 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 8a

Avg. annual minimum: 10 to 15°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 Light Frost (32°F) Hard Frost (28°F)
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January56°41°26°
February59°43°28°
March65°48°32°
April72°54°36°
May80°61°43°
June90°71°51°
July93°76°60°
August91°75°59°
September86°69°52°
October76°58°41°
November64°48°31°
December55°40°26°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January6.7
February6.6
March6.9
April2.9
May0.0
June0.5
July4.6
August3.9
September4.9
October6.0
November5.6
December5.7

Sunrise / Sunset

Daylight Mountain Standard Time (MST) Longest: 14h 17m · Shortest: 9h 43m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Mountain Standard Time (MST))
Month Sunrise Sunset Daylight
January7:36 AM5:33 PM9h 57m
February7:17 AM6:03 PM10h 46m
March6:43 AM6:27 PM11h 45m
April5:60 AM6:52 PM12h 52m
May5:28 AM7:15 PM13h 47m
June5:17 AM7:34 PM14h 16m
July5:29 AM7:33 PM14h 04m
August5:51 AM7:08 PM13h 17m
September6:14 AM6:26 PM12h 12m
October6:37 AM5:44 PM11h 07m
November7:05 AM5:16 PM10h 11m
December7:29 AM5:13 PM9h 43m

Nearby Stations

Natural Brg, AZ April 9 - November 10 Childs, AZApril 2 - November 11 Pleasant Valley, AZ May 6 - October 20 Punkin Ctr, AZ March 7 - November 20 Blue Ridge Rs, AZ May 31 - October 2 Happy Jack Rs, AZ June 1 - October 3

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!

Planter app garden planner preview