Frost Dates for Bonilla Island (Aut), BC

Elevation: 13 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. February 26
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 2

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 12
First Fall Frost November 23

Hard Freeze (−2°C)

Last Spring Hard Freeze February 15
First Fall Hard Freeze December 7
53.50°N, 130.63°W © OpenStreetMap

Growing Season

280 Days February 26 to December 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 9a

Avg. annual minimum: −7 to −4°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°5°3°
February7°5°3°
March7°5°3°
April8°7°5°
May10°9°8°
June12°11°10°
July14°13°12°
August15°13°12°
September13°12°11°
October11°10°8°
November8°7°5°
December7°5°4°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January109
February91
March102
April94
May58
June69
July61
August81
September94
October140
November117
December140

Sunrise / Sunset

Daylight Longest: 16h 47m · Shortest: 7h 13m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January8:07 AM3:53 PM7h 46m
February7:14 AM4:46 PM9h 31m
March6:15 AM5:45 PM11h 29m
April5:08 AM6:52 PM13h 44m
May4:10 AM7:50 PM15h 39m
June3:38 AM8:22 PM16h 45m
July3:51 AM8:09 PM16h 18m
August4:43 AM7:17 PM14h 35m
September5:48 AM6:12 PM12h 24m
October6:53 AM5:07 PM10h 14m
November7:52 AM4:08 PM8h 16m
December8:23 AM3:37 PM7h 15m

Nearby Stations

Bonilla Island, BC March 1 - December 2 Holland Rock, BC March 7 - November 29 Cumshewa Island, BC March 4 - December 6 Sandspit A, BC April 12 - November 15 Lucy Island Lightstation, BC March 8 - November 30 Triple Island, BC March 2 - December 6

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