Frost Dates for Hyder, AK

Elevation: 24 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 4
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 11

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 13
First Fall Frost October 5

Hard Freeze (28°F)

Last Spring Hard Freeze April 22
First Fall Hard Freeze October 25
55.92°N, 130.03°W © OpenStreetMap

Growing Season

160 Days May 4 to October 11

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.
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
January31°27°22°
February35°30°24°
March42°35°28°
April51°42°33°
May62°51°40°
June67°57°47°
July68°60°51°
August67°58°50°
September59°52°45°
October48°42°37°
November38°34°30°
December32°28°24°

Sunrise / Sunset

Daylight Longest: 17h 19m · Shortest: 6h 41m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January8:20 AM3:40 PM7h 19m
February7:22 AM4:38 PM9h 17m
March6:17 AM5:43 PM11h 27m
April5:03 AM6:57 PM13h 53m
May3:59 AM8:01 PM16h 02m
June3:22 AM8:38 PM17h 16m
July3:37 AM8:23 PM16h 45m
August4:35 AM7:25 PM14h 50m
September5:47 AM6:13 PM12h 26m
October6:58 AM5:02 PM10h 04m
November8:03 AM3:57 PM7h 53m
December8:38 AM3:22 PM6h 43m

Nearby Stations

Stewart A, BC April 28 - October 16 Unuk River Eskay Creek, BC June 9 - August 30 Nass Camp, BC May 15 - September 30 Beaver Falls, AK April 4 - November 9 Ketchikan Intl AP, AK April 22 - October 23 Ketchikan 10n, AK April 20 - October 26

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