Frost Dates for GRYTVIKEN, South Georgia and the Islands
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.
December 27
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.
January 2
This location has a very short growing season. Frost can occur at almost any time of year.
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
December 29
First Fall Frost
December 31
Hard Freeze (−2°C)
Last Spring Hard Freeze
December 5
First Fall Hard Freeze
February 22
Growing Season
6 Days
December 27 to January 2
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 8a
Avg. annual minimum: −12 to −9°C
Köppen Climate
The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
ET
Tundra
No true summer — the warmest month averages below 10°C (50°F). Growing is limited to hardy greens, root crops, and cold-frames during the brief warm period. Permafrost restricts root depth.
Temperature
-5°
0°
5°
Avg High
Avg Temp
Avg Low
Light Frost (0°C)
Hard Frost (−2°C)
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 4° | 3° | 1° |
| February | 5° | 3° | 2° |
| March | 4° | 3° | 1° |
| April | 3° | 1° | 0° |
| May | 1° | -1° | -3° |
| June | 0° | -2° | -4° |
| July | -1° | -3° | -5° |
| August | -1° | -3° | -4° |
| September | 0° | -2° | -4° |
| October | 1° | 0° | -2° |
| November | 2° | 1° | -1° |
| December | 3° | 2° | 0° |
Precipitation
0 mm
50 mm
100 mm
150 mm
Precipitation table
| Month | Precipitation |
|---|---|
| January | 140 |
| February | 127 |
| March | 163 |
| April | 147 |
| May | 140 |
| June | 132 |
| July | 132 |
| August | 147 |
| September | 132 |
| October | 119 |
| November | 114 |
| December | 122 |
Sunrise / Sunset
Daylight
Longest: 16h 57m · Shortest: 7h 03m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 3:49 AM | 8:11 PM | 16h 22m |
| February | 4:43 AM | 7:17 PM | 14h 33m |
| March | 5:44 AM | 6:16 PM | 12h 31m |
| April | 6:53 AM | 5:07 PM | 10h 13m |
| May | 7:53 AM | 4:07 PM | 8h 14m |
| June | 8:27 AM | 3:33 PM | 7h 05m |
| July | 8:13 AM | 3:47 PM | 7h 34m |
| August | 7:20 AM | 4:40 PM | 9h 20m |
| September | 6:12 AM | 5:48 PM | 11h 35m |
| October | 5:06 AM | 6:54 PM | 13h 49m |
| November | 4:05 AM | 7:55 PM | 15h 51m |
| December | 3:33 AM | 8:27 PM | 16h 55m |
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.
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