Frost Dates for Grey Islet (Aut), 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 3
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 6
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 17
First Fall Frost November 30

Hard Freeze (−2°C)

Last Spring Hard Freeze February 18
First Fall Hard Freeze December 7
54.58°N, -130.70°W © OpenStreetMap

Growing Season

278 Days March 3 to December 6

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°
4°
High: 5°C
Avg: 4°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
7°
High: 9°C
Avg: 7°C
Low: 5°C
Apr
10°
High: 12°C
Avg: 10°C
Low: 8°C
May
13°
High: 15°C
Avg: 13°C
Low: 10°C
Jun
14°
High: 17°C
Avg: 14°C
Low: 12°C
Jul
15°
High: 17°C
Avg: 15°C
Low: 12°C
Aug
12°
High: 14°C
Avg: 12°C
Low: 11°C
Sep
9°
High: 11°C
Avg: 9°C
Low: 8°C
Oct
6°
High: 8°C
Avg: 6°C
Low: 5°C
Nov
4°
High: 6°C
Avg: 4°C
Low: 3°C
Dec
Avg High Avg Temp Avg Low

Precipitation

0 mm 75 mm 150 mm 225 mm
175 mm
175.3 mm
Jan
150 mm
149.9 mm
Feb
119 mm
119.4 mm
Mar
94 mm
94.0 mm
Apr
69 mm
68.6 mm
May
74 mm
73.7 mm
Jun
74 mm
73.7 mm
Jul
130 mm
129.5 mm
Aug
119 mm
119.4 mm
Sep
203 mm
203.2 mm
Oct
201 mm
200.7 mm
Nov
173 mm
172.7 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec7.5h9.5h11.5h14h16h17h16.5h14.5h12.5h10h8h7h
Jan: 8:13 AM – 3:47 PM · 7h 34m
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 01m · Shortest: 6h 59m

Nearby Stations

Green Island, BC March 2 - December 1 Lucy Island Lightstation, BC March 8 - November 30 Triple Island, BC March 2 - December 6 Holland Rock, BC March 7 - November 29 Annette Island AP, AK April 4 - October 31 Metlakatla 6 S, AK April 14 - October 25

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