Frost Dates for Glennallen 64 N, AK
Elevation: 814 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.
June 5
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.
August 24
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
June 10
First Fall Frost
August 18
Hard Freeze (28°F)
Last Spring Hard Freeze
May 23
First Fall Hard Freeze
September 8
Growing Season
80 Days
June 5 to August 24
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 2b
Avg. annual minimum: −45 to −40°F
Köppen Climate
The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dsc
Subarctic (Dry Summer)
Cool, dry summers and cold winters. A rare climate found at high elevations. Very short growing season for cold-tolerant crops only.
Temperature
-20°
10°
40°
70°
Avg High
Avg Temp
Avg Low
Light Frost (32°F)
Hard Frost (28°F)
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 7° | -2° | -10° |
| February | 15° | 4° | -7° |
| March | 22° | 10° | -3° |
| April | 37° | 26° | 15° |
| May | 51° | 40° | 30° |
| June | 63° | 51° | 39° |
| July | 66° | 55° | 43° |
| August | 60° | 50° | 40° |
| September | 51° | 41° | 31° |
| October | 33° | 24° | 16° |
| November | 15° | 6° | -4° |
| December | 11° | 1° | -9° |
Precipitation
0"
1"
2"
3"
3.3"
Precipitation table
| Month | Precipitation |
|---|---|
| January | 1.2 |
| February | 1.0 |
| March | 1.2 |
| April | 1.6 |
| May | 2.3 |
| June | 2.9 |
| July | 3.3 |
| August | 3.1 |
| September | 2.5 |
| October | 1.8 |
| November | 1.2 |
| December | 1.2 |
Sunrise / Sunset
Daylight
Longest: 19h 48m · Shortest: 4h 12m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 9:20 AM | 2:40 PM | 5h 21m |
| February | 7:51 AM | 4:09 PM | 8h 19m |
| March | 6:22 AM | 5:38 PM | 11h 16m |
| April | 4:44 AM | 7:16 PM | 14h 32m |
| May | 3:12 AM | 8:48 PM | 17h 36m |
| June | 2:08 AM | 9:52 PM | 19h 43m |
| July | 2:37 AM | 9:23 PM | 18h 46m |
| August | 4:05 AM | 7:55 PM | 15h 51m |
| September | 5:43 AM | 6:17 PM | 12h 35m |
| October | 7:18 AM | 4:42 PM | 9h 25m |
| November | 8:52 AM | 3:08 PM | 6h 16m |
| December | 9:52 AM | 2:08 PM | 4h 16m |
Nearby Stations
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 FreeAvailable everywhere: iOS, Android, web, and more!
