Frost Dates for Fairbanks Intl AP, AK

Elevation: 132 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 13
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 13

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 17
First Fall Frost September 6

Hard Freeze (28°F)

Last Spring Hard Freeze May 4
First Fall Hard Freeze September 23
64.80°N, 147.88°W © OpenStreetMap

Growing Season

123 Days May 13 to September 13

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.
Dfb Warm-Summer Continental

Warm summers and cold, snowy winters. A shorter growing season than hot-summer continental. Hardy vegetables, root crops, and cool-season greens do well. Season extension is valuable.

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
January1°-8°-17°
February12°0°-11°
March25°11°-3°
April46°34°22°
May62°50°39°
June72°61°50°
July73°63°53°
August66°57°48°
September55°46°36°
October34°26°18°
November12°4°-4°
December4°-4°-13°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January1.2
February1.1
March1.0
April1.5
May1.6
June2.1
July2.5
August2.4
September1.8
October1.5
November1.2
December1.2

Sunrise / Sunset

Daylight Longest: 20h 58m · Shortest: 3h 03m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January9:43 AM2:17 PM4h 33m
February8:01 AM3:59 PM7h 59m
March6:24 AM5:36 PM11h 12m
April4:37 AM7:23 PM14h 45m
May2:55 AM9:05 PM18h 11m
June1:35 AM10:25 PM20h 51m
July2:12 AM9:48 PM19h 35m
August3:54 AM8:06 PM16h 11m
September5:41 AM6:19 PM12h 38m
October7:24 AM4:36 PM9h 11m
November9:10 AM2:50 PM5h 40m
December10:26 AM1:34 PM3h 08m

Nearby Stations

Fairbanks AP #2, AK May 16 - September 8 Fairbanks Midtown, AK May 13 - September 10 University Exp Stn, AK May 16 - September 8 College Obsy, AK May 18 - September 6 Ester, AKMay 24 - September 1 Aurora, AKMay 16 - September 6

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