Frost Dates for Cowichan Lake Forestry, Canada

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. April 21
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. November 2
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 April 28
First Fall Frost October 27

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze March 9
First Fall Hard Freeze November 19
48.82°N, -124.13°W © OpenStreetMap

Growing Season

195 Days April 21 to November 2

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

Learn more

Temperature

30° 50° 70°
38°
High: 43°
Avg: 38°
Low: 33°
Jan
39°
High: 46°
Avg: 39°
Low: 33°
Feb
42°
High: 50°
Avg: 42°
Low: 35°
Mar
47°
High: 56°
Avg: 47°
Low: 39°
Apr
54°
High: 64°
Avg: 54°
Low: 44°
May
59°
High: 68°
Avg: 59°
Low: 49°
Jun
65°
High: 76°
Avg: 65°
Low: 53°
Jul
65°
High: 77°
Avg: 65°
Low: 53°
Aug
60°
High: 71°
Avg: 60°
Low: 49°
Sep
50°
High: 58°
Avg: 50°
Low: 43°
Oct
42°
High: 48°
Avg: 42°
Low: 37°
Nov
38°
High: 42°
Avg: 38°
Low: 33°
Dec
32°F
Avg High Avg Temp Avg Low Light Frost (32°F)

Precipitation

0" 4" 8" 12" 14.9"
14.9"
14.90"
Jan
9.1"
9.10"
Feb
9.8"
9.80"
Mar
6.0"
6.00"
Apr
3.2"
3.20"
May
1.9"
1.90"
Jun
1.3"
1.30"
Jul
1.7"
1.70"
Aug
2.7"
2.70"
Sep
8.9"
8.90"
Oct
14.1"
14.10"
Nov
14.7"
14.70"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8h10h12h13h15h16h16h14h12h11h9h8h
Jan: 7:46 AM – 4:14 PM · 8h 29m
Feb: 7:03 AM – 4:57 PM · 9h 55m
Mar: 6:13 AM – 5:47 PM · 11h 34m
Apr: 5:16 AM – 6:44 PM · 13h 27m
May: 4:28 AM – 7:32 PM · 15h 03m
Jun: 4:02 AM – 7:58 PM · 15h 56m
Jul: 4:13 AM – 7:47 PM · 15h 34m
Aug: 4:55 AM – 7:05 PM · 14h 10m
Sep: 5:50 AM – 6:10 PM · 12h 20m
Oct: 6:45 AM – 5:15 PM · 10h 31m
Nov: 7:34 AM – 4:26 PM · 8h 53m
Dec: 7:58 AM – 4:02 PM · 8h 04m
Daylight Longest: 15h 58m · Shortest: 8h 02m

Nearby Stations

Port Renfrew, Canada April 11 - October 31 Duncan Kelvin Creek, Canada April 25 - October 23 Chemainus, Canada March 10 - November 25 Nanaimo A, Canada April 15 - October 27 Nitinat River Hatchery, Canada April 21 - October 23 Shawnigan Lake, Canada April 7 - November 6

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