Frost Dates for Green Island, BC

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. March 2
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. December 1
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 March 16
First Fall Frost November 23

Hard Freeze (−2°C)

Last Spring Hard Freeze February 18
First Fall Hard Freeze December 4
54.57°N, -130.70°W © OpenStreetMap

Growing Season

274 Days March 2 to December 1

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: 15 to 20°F (−9 to −7°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

Cfb Oceanic (Marine West Coast)

Mild year-round with cool summers and wet winters. Excellent for cool-season crops like brassicas, peas, and root vegetables. Extended harvest seasons but summer heat-loving crops may struggle.

Köppen climate map

Temperature

0° 5° 10° 15° 20°
3°
High: 5°C
Avg: 3°C
Low: 2°C
Jan
4°
High: 6°C
Avg: 4°C
Low: 2°C
Feb
5°
High: 7°C
Avg: 5°C
Low: 3°C
Mar
8°
High: 10°C
Avg: 8°C
Low: 5°C
Apr
11°
High: 13°C
Avg: 11°C
Low: 8°C
May
13°
High: 16°C
Avg: 13°C
Low: 10°C
Jun
15°
High: 17°C
Avg: 15°C
Low: 12°C
Jul
15°
High: 17°C
Avg: 15°C
Low: 12°C
Aug
13°
High: 15°C
Avg: 13°C
Low: 10°C
Sep
9°
High: 11°C
Avg: 9°C
Low: 7°C
Oct
6°
High: 7°C
Avg: 6°C
Low: 4°C
Nov
4°
High: 5°C
Avg: 4°C
Low: 2°C
Dec
Avg High Avg Temp Avg Low

Precipitation

0 mm 75 mm 150 mm 225 mm 300 mm
241 mm
241.3 mm
Jan
168 mm
167.6 mm
Feb
165 mm
165.1 mm
Mar
152 mm
152.4 mm
Apr
107 mm
106.7 mm
May
109 mm
109.2 mm
Jun
102 mm
101.6 mm
Jul
178 mm
177.8 mm
Aug
226 mm
226.1 mm
Sep
297 mm
297.2 mm
Oct
282 mm
281.9 mm
Nov
254 mm
254.0 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec7.5h9.5h11.5h14h16h17h16.5h14.5h12.5h10h8h7h
Jan: 8:13 AM – 3:47 PM · 7h 35m
Feb: 7:18 AM – 4:42 PM · 9h 25m
Mar: 6:16 AM – 5:44 PM · 11h 28m
Apr: 5:06 AM – 6:54 PM · 13h 48m
May: 4:06 AM – 7:54 PM · 15h 49m
Jun: 3:31 AM – 8:29 PM · 16h 58m
Jul: 3:45 AM – 8:15 PM · 16h 29m
Aug: 4:39 AM – 7:21 PM · 14h 41m
Sep: 5:48 AM – 6:12 PM · 12h 25m
Oct: 6:55 AM – 5:05 PM · 10h 10m
Nov: 7:57 AM – 4:03 PM · 8h 06m
Dec: 8:29 AM – 3:31 PM · 7h 01m
Daylight Longest: 17h 00m · Shortest: 6h 60m

Nearby Stations

Grey Islet (Aut), BC March 3 - December 6 Lucy Island Lightstation, BC March 8 - November 30 Triple Island, BC March 2 - December 6 Holland Rock, BC March 7 - November 29 Rose Spit (Aut), BC March 24 - November 23 Annette Island AP, AK April 4 - October 31

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