Frost Dates for Prudhoe Bay, AK

Based on data from Deadhorse AP weather station, 5 miles away

Frost Dates

This location has year-round freezing temperatures.

70.26°N, -148.34°W © OpenStreetMap

USDA Hardiness Zone iHardiness 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 (−46 to −43°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

ET Tundra

No true summer — the warmest month averages below 10°C (50°F). Growing is limited to hardy greens, root crops, and cold-frames during the brief warm period. Permafrost restricts root depth.

Köppen climate map

Temperature

-30° 0° 30° 60°
-15°
High: -8°F
Avg: -15°F
Low: -22°F
Jan
-15°
High: -8°F
Avg: -15°F
Low: -22°F
Feb
-14°
High: -7°F
Avg: -14°F
Low: -21°F
Mar
3°
High: 10°F
Avg: 3°F
Low: -5°F
Apr
24°
High: 29°F
Avg: 24°F
Low: 19°F
May
40°
High: 46°F
Avg: 40°F
Low: 34°F
Jun
47°
High: 55°F
Avg: 47°F
Low: 40°F
Jul
44°
High: 50°F
Avg: 44°F
Low: 37°F
Aug
35°
High: 39°F
Avg: 35°F
Low: 30°F
Sep
18°
High: 24°F
Avg: 18°F
Low: 13°F
Oct
2°
High: 8°F
Avg: 2°F
Low: -5°F
Nov
-9°
High: -3°F
Avg: -9°F
Low: -16°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 1.8"
0.6"
0.62"
Jan
0.6"
0.56"
Feb
0.6"
0.62"
Mar
0.6"
0.60"
Apr
0.7"
0.74"
May
1.3"
1.28"
Jun
1.8"
1.83"
Jul
1.5"
1.47"
Aug
1.0"
0.96"
Sep
0.7"
0.67"
Oct
0.6"
0.60"
Nov
0.6"
0.62"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec0h6.5h11h15.5h21.5h24h24h17.5h13h8.5h2h0h
Jan: 0h (Polar Night)
Feb: 8:44 AM – 3:16 PM · 6h 32m
Mar: 6:31 AM – 5:29 PM · 10h 57m
Apr: 4:10 AM – 7:50 PM · 15h 39m
May: 1:17 AM – 10:43 PM · 21h 27m
Jun: 24h (Midnight Sun)
Jul: 24h (Midnight Sun)
Aug: 3:08 AM – 8:52 PM · 17h 43m
Sep: 5:35 AM – 6:25 PM · 12h 49m
Oct: 7:52 AM – 4:08 PM · 8h 16m
Nov: 10:58 AM – 1:02 PM · 2h 03m
Dec: 0h (Polar Night)
Daylight Longest: 24h 00m · Shortest: 0h 00m

Nearby Stations

Kuparuk, AK

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