Frost Dates for Alpine, AZ

Elevation: 2454 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 15
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. September 21

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 21
First Fall Frost September 16

Hard Freeze (28°F)

Last Spring Hard Freeze June 3
First Fall Hard Freeze September 28
33.85°N, 109.15°W © OpenStreetMap

Growing Season

98 Days June 15 to September 21

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
January46°30°15°
February48°33°18°
March54°38°23°
April61°43°26°
May69°50°32°
June78°58°39°
July79°63°47°
August76°61°46°
September72°56°39°
October64°47°30°
November54°38°22°
December46°31°16°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January3.2
February3.7
March3.5
April0.5
May2.9
June3.6
July4.7
August5.3
September4.9
October5.2
November4.9
December3.7

Sunrise / Sunset

Daylight Longest: 14h 15m · Shortest: 9h 45m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:01 AM4:59 PM9h 59m
February6:36 AM5:24 PM10h 47m
March6:08 AM5:52 PM11h 45m
April5:34 AM6:26 PM12h 51m
May5:07 AM6:53 PM13h 46m
June4:53 AM7:07 PM14h 14m
July4:59 AM7:01 PM14h 03m
August5:22 AM6:38 PM13h 16m
September5:54 AM6:06 PM12h 12m
October6:26 AM5:34 PM11h 08m
November6:54 AM5:06 PM10h 12m
December7:07 AM4:53 PM9h 45m

Nearby Stations

Luna Rs, NMJune 17 - September 21 Springerville, AZ June 1 - September 26 Greer, AZJune 5 - September 29 Reserve Rs, NMMay 30 - October 3 Sunrise Mtn, AZ June 18 - September 18 Glenwood, NMMay 6 - October 18

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