Frost Dates for Haines AP, AK

Elevation: 5 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. April 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. October 12

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 April 30
First Fall Frost October 5

Hard Freeze (28°F)

Last Spring Hard Freeze April 7
First Fall Hard Freeze October 29
59.24°N, 135.51°W © OpenStreetMap

Growing Season

170 Days April 25 to October 12

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 6b

Avg. annual minimum: −5 to 0°F

Learn more

Köppen Climate

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

Cool, dry summers and cold winters. A rare climate found at high elevations. Very short growing season for cold-tolerant crops only.

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
January30°24°19°
February34°28°22°
March39°33°26°
April50°42°34°
May60°51°42°
June64°57°49°
July65°59°52°
August64°58°51°
September57°52°46°
October48°43°38°
November36°31°26°
December32°27°22°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January4.8
February4.1
March3.4
April2.7
May2.4
June1.9
July2.2
August2.8
September4.2
October5.8
November5.3
December6.0

Sunrise / Sunset

Daylight Longest: 18h 14m · Shortest: 5h 46m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January8:43 AM3:17 PM6h 33m
February7:34 AM4:26 PM8h 53m
March6:19 AM5:41 PM11h 22m
April4:55 AM7:05 PM14h 09m
May3:40 AM8:20 PM16h 39m
June2:54 AM9:06 PM18h 11m
July3:14 AM8:46 PM17h 32m
August4:23 AM7:37 PM15h 15m
September5:45 AM6:15 PM12h 30m
October7:06 AM4:54 PM9h 48m
November8:23 AM3:37 PM7h 14m
December9:06 AM2:54 PM5h 48m

Nearby Stations

Haines #2, AKApril 30 - October 7 Skagway AP, AK April 21 - October 17 Skagway, AKMay 6 - October 1 Haines 40nw, AK May 24 - September 20 Pleasant Camp, BC May 27 - September 11 Glacier Bay, AKMay 6 - October 10

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