Frost Dates for Port Alcan, AK

Frost Dates

Last Spring Frost (50%) iA 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. May 28
First Fall Frost (50%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. August 29
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly 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 23

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze May 15
First Fall Hard Freeze September 9
62.62°N, -141.01°W © OpenStreetMap

Growing Season

93 Days May 28 to August 29

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

Learn more

Temperature

-20° 10° 40° 70°
-12°
High: -5°
Avg: -12°
Low: -19°
Jan
-3°
High: 6°
Avg: -3°
Low: -13°
Feb
8°
High: 23°
Avg: 8°
Low: -6°
Mar
30°
High: 43°
Avg: 30°
Low: 17°
Apr
46°
High: 58°
Avg: 46°
Low: 33°
May
55°
High: 67°
Avg: 55°
Low: 44°
Jun
58°
High: 69°
Avg: 58°
Low: 47°
Jul
53°
High: 65°
Avg: 53°
Low: 41°
Aug
42°
High: 53°
Avg: 42°
Low: 30°
Sep
23°
High: 31°
Avg: 23°
Low: 14°
Oct
0°
High: 8°
Avg: 0°
Low: -7°
Nov
-9°
High: -2°
Avg: -9°
Low: -16°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 3" 3.5"
1.6"
1.55"
Jan
1.1"
1.15"
Feb
0.0"
0.00"
Mar
0.4"
0.36"
Apr
2.7"
2.66"
May
3.3"
3.30"
Jun
3.5"
3.51"
Jul
2.9"
2.85"
Aug
1.8"
1.81"
Sep
1.6"
1.55"
Oct
1.7"
1.66"
Nov
1.8"
1.83"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec6h8h11h14h17h20h19h16h13h9h6h4h
Jan: 9:15 AM – 2:45 PM · 5h 30m
Feb: 7:49 AM – 4:11 PM · 8h 23m
Mar: 6:22 AM – 5:38 PM · 11h 16m
Apr: 4:45 AM – 7:15 PM · 14h 29m
May: 3:16 AM – 8:44 PM · 17h 29m
Jun: 2:15 AM – 9:45 PM · 19h 31m
Jul: 2:42 AM – 9:18 PM · 18h 37m
Aug: 4:07 AM – 7:53 PM · 15h 46m
Sep: 5:43 AM – 6:17 PM · 12h 34m
Oct: 7:16 AM – 4:44 PM · 9h 28m
Nov: 8:48 AM – 3:12 PM · 6h 23m
Dec: 9:46 AM – 2:14 PM · 4h 29m
Daylight Longest: 19h 35m · Shortest: 4h 25m

Nearby Stations

Tok 70 Se, AK Beaver Creek A, Canada June 6 - August 16 Northway AP, AK May 26 - September 1 Nabesna, AKJune 4 - September 1 Mccarthy 3 Sw, AK

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