Frost Dates for BIRD ISLAND, 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 13
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. February 18
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 20
First Fall Frost January 29

Hard Freeze (−2°C)

Last Spring Hard Freeze November 4
First Fall Hard Freeze April 29
-54.00°N, -38.05°W © OpenStreetMap

Growing Season

67 Days December 13 to February 18

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 8b

Avg. annual minimum: −9 to −7°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° 10°
4°
High: 5°C
Avg: 4°C
Low: 2°C
Jan
4°
High: 5°C
Avg: 4°C
Low: 3°C
Feb
4°
High: 5°C
Avg: 4°C
Low: 2°C
Mar
2°
High: 3°C
Avg: 2°C
Low: 1°C
Apr
1°
High: 2°C
Avg: 1°C
Low: -1°C
May
0°
High: 1°C
Avg: 0°C
Low: -2°C
Jun
-1°
High: 0°C
Avg: -1°C
Low: -3°C
Jul
-1°
High: 0°C
Avg: -1°C
Low: -3°C
Aug
-1°
High: 0°C
Avg: -1°C
Low: -2°C
Sep
0°
High: 1°C
Avg: 0°C
Low: -1°C
Oct
1°
High: 3°C
Avg: 1°C
Low: 0°C
Nov
3°
High: 4°C
Avg: 3°C
Low: 1°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
94 mm
94.0 mm
Jan
94 mm
94.0 mm
Feb
114 mm
114.3 mm
Mar
104 mm
104.1 mm
Apr
86 mm
86.4 mm
May
84 mm
83.8 mm
Jun
86 mm
86.4 mm
Jul
84 mm
83.8 mm
Aug
89 mm
88.9 mm
Sep
81 mm
81.3 mm
Oct
81 mm
81.3 mm
Nov
89 mm
88.9 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec16.5h14.5h12.5h10h8.5h7h7.5h9.5h11.5h14h16h17h
Jan: 3:50 AM – 8:10 PM · 16h 19m
Feb: 4:44 AM – 7:16 PM · 14h 32m
Mar: 5:44 AM – 6:16 PM · 12h 31m
Apr: 6:53 AM – 5:07 PM · 10h 14m
May: 7:52 AM – 4:08 PM · 8h 17m
Jun: 8:26 AM – 3:34 PM · 7h 09m
Jul: 8:11 AM – 3:49 PM · 7h 37m
Aug: 7:19 AM – 4:41 PM · 9h 22m
Sep: 6:12 AM – 5:48 PM · 11h 36m
Oct: 5:06 AM – 6:54 PM · 13h 48m
Nov: 4:06 AM – 7:54 PM · 15h 48m
Dec: 3:34 AM – 8:26 PM · 16h 51m
Daylight Longest: 16h 53m · Shortest: 7h 07m

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