Frost Dates for Kaltag AP, AK

Elevation: 55 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 25
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 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 1
First Fall Frost August 28

Hard Freeze (28°F)

Last Spring Hard Freeze May 12
First Fall Hard Freeze September 17
64.33°N, 158.74°W © OpenStreetMap

Growing Season

101 Days May 25 to September 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 2a

Avg. annual minimum: −50 to −45°F

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dfc Subarctic

Short, cool summers and long, very cold winters. Growing seasons of 3–4 months require fast-maturing varieties. Root vegetables, potatoes, and cold-hardy greens are the most reliable.

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
January4°-4°-12°
February14°4°-6°
March21°10°-2°
April38°28°17°
May56°45°34°
June69°57°46°
July69°59°49°
August64°54°45°
September53°44°36°
October35°28°21°
November17°9°2°
December8°0°-8°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January2.0
February1.9
March2.0
April1.9
May2.0
June2.1
July2.9
August3.3
September3.1
October3.0
November2.0
December2.0

Sunrise / Sunset

Daylight Longest: 20h 36m · Shortest: 3h 24m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January9:36 AM2:24 PM4h 47m
February7:58 AM4:02 PM8h 05m
March6:24 AM5:36 PM11h 13m
April4:39 AM7:21 PM14h 41m
May2:60 AM9:00 PM18h 00m
June1:45 AM10:15 PM20h 30m
July2:20 AM9:40 PM19h 21m
August3:57 AM8:03 PM16h 05m
September5:42 AM6:18 PM12h 37m
October7:22 AM4:38 PM9h 15m
November9:05 AM2:55 PM5h 50m
December10:15 AM1:45 PM3h 29m

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