Frost Dates for Mcgrath AP, AK
Elevation: 102 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.
May 13
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.
September 13
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
May 19
First Fall Frost
September 5
Hard Freeze (28°F)
Last Spring Hard Freeze
May 4
First Fall Hard Freeze
September 25
Growing Season
123 Days
May 13 to September 13
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 2a
Avg. annual minimum: −50 to −45°F
Köppen Climate
The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dfc
Subarctic
Short, cool summers and long, very cold winters. Growing seasons of 3–4 months require fast-maturing varieties. Root vegetables, potatoes, and cold-hardy greens are the most reliable.
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 | 3° | -6° | -14° |
| February | 15° | 5° | -6° |
| March | 25° | 12° | -1° |
| April | 43° | 32° | 22° |
| May | 59° | 48° | 38° |
| June | 69° | 59° | 49° |
| July | 70° | 61° | 52° |
| August | 64° | 56° | 48° |
| September | 54° | 46° | 38° |
| October | 35° | 29° | 22° |
| November | 15° | 8° | 1° |
| December | 6° | -2° | -10° |
Precipitation
0"
1"
2"
3"
3.3"
Precipitation table
| Month | Precipitation |
|---|---|
| January | 1.4 |
| February | 1.1 |
| March | 1.2 |
| April | 1.2 |
| May | 1.7 |
| June | 2.0 |
| July | 2.8 |
| August | 3.3 |
| September | 2.8 |
| October | 2.0 |
| November | 1.4 |
| December | 1.4 |
Sunrise / Sunset
Daylight
Longest: 19h 45m · Shortest: 4h 15m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 9:19 AM | 2:41 PM | 5h 22m |
| February | 7:50 AM | 4:10 PM | 8h 20m |
| March | 6:22 AM | 5:38 PM | 11h 16m |
| April | 4:44 AM | 7:16 PM | 14h 32m |
| May | 3:13 AM | 8:47 PM | 17h 34m |
| June | 2:10 AM | 9:50 PM | 19h 41m |
| July | 2:38 AM | 9:22 PM | 18h 45m |
| August | 4:05 AM | 7:55 PM | 15h 50m |
| September | 5:43 AM | 6:17 PM | 12h 35m |
| October | 7:17 AM | 4:43 PM | 9h 25m |
| November | 8:51 AM | 3:09 PM | 6h 17m |
| December | 9:51 AM | 2:09 PM | 4h 19m |
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!
