Frost Dates for Port Alice, 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 27
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. November 15

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 April 4
First Fall Frost November 4

Hard Freeze (−2°C)

Last Spring Hard Freeze February 20
First Fall Hard Freeze December 1
50.38°N, 127.45°W © OpenStreetMap

Growing Season

233 Days March 27 to November 15

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
January7°5°3°
February8°5°2°
March9°6°3°
April12°8°4°
May16°11°7°
June18°14°10°
July21°16°12°
August21°17°12°
September19°14°10°
October13°10°7°
November9°7°4°
December7°5°2°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January450
February318
March345
April234
May122
June86
July61
August102
September147
October429
November551
December500

Sunrise / Sunset

Daylight Longest: 16h 13m · Shortest: 7h 47m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:52 AM4:08 PM8h 16m
February7:06 AM4:54 PM9h 47m
March6:14 AM5:46 PM11h 33m
April5:14 AM6:46 PM13h 32m
May4:23 AM7:37 PM15h 14m
June3:54 AM8:06 PM16h 11m
July4:06 AM7:54 PM15h 48m
August4:51 AM7:09 PM14h 18m
September5:49 AM6:11 PM12h 21m
October6:47 AM5:13 PM10h 26m
November7:39 AM4:21 PM8h 42m
December8:06 AM3:54 PM7h 49m

Nearby Stations

Quatsino, BCApril 5 - November 14 Port Hardy A, BC April 19 - November 2 Quatsino Lightstation, BC February 28 - December 2 Solander Island (Aut), BC March 3 - November 16 Herbert Island (Aut), BC February 11 - December 4 Pine Island, BC February 16 - December 5

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