Frost Dates for Cumshewa Island, 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. March 4
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 15
First Fall Frost November 28

Hard Freeze (−2°C)

Last Spring Hard Freeze February 15
First Fall Hard Freeze December 1
53.03°N, 131.60°W © OpenStreetMap

Growing Season

277 Days March 4 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 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.
Csb Warm-Summer Mediterranean

Warm, dry summers and mild, wet winters. Similar to hot-summer Mediterranean but cooler. Great for a wide range of vegetables and fruit trees with moderate water needs.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low
Temperature table
Average monthly temperatures (°C)
Month Avg High Avg Temp Avg Low
January7°5°4°
February7°5°3°
March7°5°3°
April9°7°5°
May11°10°8°
June13°12°10°
July16°14°12°
August17°15°13°
September15°13°12°
October12°10°8°
November9°7°5°
December8°6°4°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January229
February127
March97
April33
May15
June18
July18
August28
September66
October137
November119
December132

Sunrise / Sunset

Daylight Longest: 16h 42m · Shortest: 7h 19m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January8:05 AM3:55 PM7h 51m
February7:13 AM4:47 PM9h 34m
March6:15 AM5:45 PM11h 30m
April5:09 AM6:51 PM13h 42m
May4:12 AM7:48 PM15h 35m
June3:40 AM8:20 PM16h 39m
July3:54 AM8:06 PM16h 13m
August4:44 AM7:16 PM14h 32m
September5:48 AM6:12 PM12h 24m
October6:52 AM5:08 PM10h 16m
November7:50 AM4:10 PM8h 20m
December8:20 AM3:40 PM7h 20m

Nearby Stations

Sandspit A, BC April 12 - November 15 Bonilla Island, BC March 1 - December 2 Bonilla Island (Aut), BC February 26 - December 2 Rose Spit (Aut), BC March 24 - November 23 Triple Island, BC March 2 - December 6 Holland Rock, BC March 7 - November 29

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