Frost Dates for Hoonah, 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 9
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. October 4
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 May 19
First Fall Frost September 26

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze April 26
First Fall Hard Freeze October 19
58.11°N, -135.43°W © OpenStreetMap

Growing Season

148 Days May 9 to October 4

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 7b

Learn more

Temperature

20° 40° 60°
31°
High: 34°
Avg: 31°
Low: 27°
Jan
32°
High: 37°
Avg: 32°
Low: 27°
Feb
34°
High: 40°
Avg: 34°
Low: 28°
Mar
41°
High: 49°
Avg: 41°
Low: 33°
Apr
49°
High: 58°
Avg: 49°
Low: 40°
May
55°
High: 62°
Avg: 55°
Low: 47°
Jun
58°
High: 65°
Avg: 58°
Low: 51°
Jul
58°
High: 64°
Avg: 58°
Low: 51°
Aug
51°
High: 58°
Avg: 51°
Low: 45°
Sep
43°
High: 48°
Avg: 43°
Low: 38°
Oct
35°
High: 39°
Avg: 35°
Low: 31°
Nov
32°
High: 36°
Avg: 32°
Low: 28°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 6" 6.7"
6.0"
6.04"
Jan
5.0"
5.04"
Feb
5.0"
4.95"
Mar
3.5"
3.46"
Apr
3.4"
3.41"
May
3.3"
3.27"
Jun
4.0"
4.01"
Jul
4.6"
4.63"
Aug
5.7"
5.67"
Sep
6.7"
6.69"
Oct
6.4"
6.38"
Nov
6.5"
6.51"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec7h9h11h14h16h18h17h15h12h10h7h6h
Jan: 8:35 AM – 3:25 PM · 6h 50m
Feb: 7:29 AM – 4:31 PM · 9h 02m
Mar: 6:18 AM – 5:42 PM · 11h 24m
Apr: 4:58 AM – 7:02 PM · 14h 04m
May: 3:47 AM – 8:13 PM · 16h 25m
Jun: 3:05 AM – 8:55 PM · 17h 51m
Jul: 3:23 AM – 8:37 PM · 17h 15m
Aug: 4:27 AM – 7:33 PM · 15h 06m
Sep: 5:46 AM – 6:14 PM · 12h 29m
Oct: 7:03 AM – 4:57 PM · 9h 54m
Nov: 8:16 AM – 3:44 PM · 7h 29m
Dec: 8:56 AM – 3:04 PM · 6h 09m
Daylight Longest: 17h 54m · Shortest: 6h 07m

Nearby Stations

Gustavus, AKMay 30 - September 16 Gustavus 2 Ne, AK May 28 - September 25 Glacier Bay, AKMay 6 - October 10 Pelican, AKMay 4 - October 19 Juneau Lena Pt, AK April 11 - November 1 Juneau Mile 17, AK April 29 - October 20

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