Frost Dates for Northway AP, AK

Elevation: 522 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. May 26
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 1

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 31
First Fall Frost August 26

Hard Freeze (28°F)

Last Spring Hard Freeze May 13
First Fall Hard Freeze September 13
62.96°N, 141.93°W © OpenStreetMap

Growing Season

98 Days May 26 to September 1

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 1b

Avg. annual minimum: −55 to −50°F

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dwc Subarctic (Dry Winter)

Short summers and long, extremely cold, dry winters. Among the most challenging climates for gardening. Only the hardiest, fastest-maturing crops succeed.

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
January-5°-13°-22°
February8°-4°-16°
March25°8°-8°
April45°31°17°
May61°47°34°
June70°57°45°
July72°60°48°
August67°55°44°
September55°43°32°
October32°23°14°
November8°-1°-9°
December-2°-11°-19°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January0.8
February0.7
March0.6
April0.6
May1.8
June2.5
July2.5
August2.2
September1.6
October1.2
November1.0
December1.0

Sunrise / Sunset

Daylight Longest: 19h 46m · Shortest: 4h 15m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January9:19 AM2:41 PM5h 22m
February7:50 AM4:10 PM8h 19m
March6:22 AM5:38 PM11h 16m
April4:44 AM7:16 PM14h 32m
May3:13 AM8:47 PM17h 35m
June2:10 AM9:50 PM19h 41m
July2:38 AM9:22 PM18h 45m
August4:05 AM7:55 PM15h 50m
September5:43 AM6:17 PM12h 35m
October7:17 AM4:43 PM9h 25m
November8:51 AM3:09 PM6h 17m
December9:51 AM2:09 PM4h 18m

Nearby Stations

Tok 70 Se, AK Port Alcan, AKMay 28 - August 29 Beaver Creek A, YT June 6 - August 16 Nabesna, AKJune 4 - September 1 Mccarthy 3 Sw, AK

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