Frost Dates for Glacier Bay, 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 6
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 10
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 13
First Fall Frost October 1

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze April 20
First Fall Hard Freeze October 28
58.46°N, -135.87°W © OpenStreetMap

Growing Season

157 Days May 6 to October 10

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 7a

Learn more

Temperature

20° 40° 60°
29°
High: 32°
Avg: 29°
Low: 26°
Jan
30°
High: 34°
Avg: 30°
Low: 26°
Feb
32°
High: 37°
Avg: 32°
Low: 28°
Mar
39°
High: 46°
Avg: 39°
Low: 33°
Apr
47°
High: 54°
Avg: 47°
Low: 39°
May
52°
High: 59°
Avg: 52°
Low: 45°
Jun
55°
High: 61°
Avg: 55°
Low: 49°
Jul
54°
High: 60°
Avg: 54°
Low: 48°
Aug
48°
High: 54°
Avg: 48°
Low: 43°
Sep
41°
High: 45°
Avg: 41°
Low: 37°
Oct
33°
High: 37°
Avg: 33°
Low: 30°
Nov
30°
High: 33°
Avg: 30°
Low: 27°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 6" 7.6"
6.1"
6.07"
Jan
4.1"
4.08"
Feb
3.5"
3.51"
Mar
3.2"
3.23"
Apr
3.9"
3.94"
May
3.5"
3.45"
Jun
4.3"
4.31"
Jul
6.2"
6.15"
Aug
7.6"
7.64"
Sep
7.1"
7.13"
Oct
6.1"
6.06"
Nov
6.1"
6.13"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec7h9h11h14h16h18h17h15h12h10h7h6h
Jan: 8:37 AM – 3:23 PM · 6h 45m
Feb: 7:31 AM – 4:29 PM · 8h 59m
Mar: 6:18 AM – 5:42 PM · 11h 23m
Apr: 4:57 AM – 7:03 PM · 14h 05m
May: 3:45 AM – 8:15 PM · 16h 29m
Jun: 3:02 AM – 8:58 PM · 17h 57m
Jul: 3:20 AM – 8:40 PM · 17h 20m
Aug: 4:26 AM – 7:34 PM · 15h 08m
Sep: 5:46 AM – 6:14 PM · 12h 29m
Oct: 7:04 AM – 4:56 PM · 9h 52m
Nov: 8:18 AM – 3:42 PM · 7h 24m
Dec: 8:59 AM – 3:01 PM · 6h 03m
Daylight Longest: 17h 60m · Shortest: 6h 00m

Nearby Stations

Gustavus, AKMay 30 - September 16 Gustavus 2 Ne, AK May 28 - September 25 Elfin Cove, AK April 26 - November 1 Hoonah, AKMay 9 - October 4 Pelican, AKMay 4 - October 19 Juneau Lena Pt, AK April 11 - November 1

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!

Planter app garden planner preview