Frost Dates for Triple Island, BC

Elevation: 21 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. March 2
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. December 6

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 March 14
First Fall Frost November 29

Hard Freeze (−2°C)

Last Spring Hard Freeze February 13
First Fall Hard Freeze December 6
54.30°N, 130.88°W © OpenStreetMap

Growing Season

279 Days March 2 to December 6

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 8b

Avg. annual minimum: −9 to −7°C

Learn more

Köppen Climate

The 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

Avg High Avg Temp Avg Low
Temperature table
Average monthly temperatures (°C)
Month Avg High Avg Temp Avg Low
January6°4°3°
February7°5°3°
March7°5°3°
April9°7°5°
May12°10°8°
June14°12°10°
July15°13°12°
August16°14°12°
September14°13°11°
October11°10°8°
November9°7°5°
December7°5°3°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January130
February84
March91
April86
May79
June74
July76
August99
September117
October155
November170
December130

Sunrise / Sunset

Daylight Longest: 16h 57m · Shortest: 7h 03m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January8:11 AM3:49 PM7h 38m
February7:17 AM4:43 PM9h 26m
March6:16 AM5:44 PM11h 29m
April5:07 AM6:53 PM13h 47m
May4:07 AM7:53 PM15h 46m
June3:33 AM8:27 PM16h 55m
July3:47 AM8:13 PM16h 26m
August4:40 AM7:20 PM14h 40m
September5:48 AM6:12 PM12h 25m
October6:54 AM5:06 PM10h 11m
November7:56 AM4:04 PM8h 09m
December8:28 AM3:32 PM7h 05m

Nearby Stations

Lucy Island Lightstation, BC March 8 - November 30 Green Island, BC March 2 - December 1 Grey Islet (Aut), BC March 3 - December 6 Holland Rock, BC March 7 - November 29 Rose Spit (Aut), BC March 24 - November 23 Bonilla Island, BC March 1 - December 2

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