Frost Dates for GRYTVIKEN, South Georgia and the Islands

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. December 27
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. January 2

This location has a very short growing season. Frost can occur at almost any time of year.

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 December 29
First Fall Frost December 31

Hard Freeze (−2°C)

Last Spring Hard Freeze December 5
First Fall Hard Freeze February 22
-54.28°N, -36.50°W © OpenStreetMap

Growing Season

6 Days December 27 to January 2

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 8a

Avg. annual minimum: −12 to −9°C

Learn more

Köppen Climate iThe 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.

Köppen climate map

Temperature

-5° 0° 5°
3°
High: 4°C
Avg: 3°C
Low: 1°C
Jan
3°
High: 5°C
Avg: 3°C
Low: 2°C
Feb
3°
High: 4°C
Avg: 3°C
Low: 1°C
Mar
1°
High: 3°C
Avg: 1°C
Low: 0°C
Apr
-1°
High: 1°C
Avg: -1°C
Low: -3°C
May
-2°
High: 0°C
Avg: -2°C
Low: -4°C
Jun
-3°
High: -1°C
Avg: -3°C
Low: -5°C
Jul
-3°
High: -1°C
Avg: -3°C
Low: -4°C
Aug
-2°
High: 0°C
Avg: -2°C
Low: -4°C
Sep
0°
High: 1°C
Avg: 0°C
Low: -2°C
Oct
1°
High: 2°C
Avg: 1°C
Low: -1°C
Nov
2°
High: 3°C
Avg: 2°C
Low: 0°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 50 mm 100 mm 150 mm
140 mm
139.7 mm
Jan
127 mm
127.0 mm
Feb
163 mm
162.6 mm
Mar
147 mm
147.3 mm
Apr
140 mm
139.7 mm
May
132 mm
132.1 mm
Jun
132 mm
132.1 mm
Jul
147 mm
147.3 mm
Aug
132 mm
132.1 mm
Sep
119 mm
119.4 mm
Oct
114 mm
114.3 mm
Nov
122 mm
121.9 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec16.5h14.5h12.5h10h8h7h7.5h9.5h11.5h14h16h17h
Jan: 3:49 AM – 8:11 PM · 16h 22m
Feb: 4:43 AM – 7:17 PM · 14h 33m
Mar: 5:44 AM – 6:16 PM · 12h 31m
Apr: 6:53 AM – 5:07 PM · 10h 13m
May: 7:53 AM – 4:07 PM · 8h 14m
Jun: 8:27 AM – 3:33 PM · 7h 05m
Jul: 8:13 AM – 3:47 PM · 7h 34m
Aug: 7:20 AM – 4:40 PM · 9h 20m
Sep: 6:12 AM – 5:48 PM · 11h 35m
Oct: 5:06 AM – 6:54 PM · 13h 49m
Nov: 4:05 AM – 7:55 PM · 15h 51m
Dec: 3:33 AM – 8:27 PM · 16h 55m
Daylight Longest: 16h 57m · Shortest: 7h 03m

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