Frost Dates for Qualicum R Fish Research, 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. April 11
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. October 29
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 19
First Fall Frost October 21

Hard Freeze (−2°C)

Last Spring Hard Freeze February 21
First Fall Hard Freeze November 22
49.40°N, -124.62°W © OpenStreetMap

Growing Season

201 Days April 11 to October 29

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.

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

0° 10° 20°
4°
High: 6°C
Avg: 4°C
Low: 1°C
Jan
4°
High: 8°C
Avg: 4°C
Low: 1°C
Feb
6°
High: 10°C
Avg: 6°C
Low: 2°C
Mar
9°
High: 13°C
Avg: 9°C
Low: 4°C
Apr
12°
High: 17°C
Avg: 12°C
Low: 8°C
May
15°
High: 20°C
Avg: 15°C
Low: 11°C
Jun
18°
High: 23°C
Avg: 18°C
Low: 12°C
Jul
17°
High: 23°C
Avg: 17°C
Low: 12°C
Aug
14°
High: 19°C
Avg: 14°C
Low: 9°C
Sep
10°
High: 13°C
Avg: 10°C
Low: 6°C
Oct
6°
High: 9°C
Avg: 6°C
Low: 3°C
Nov
4°
High: 6°C
Avg: 4°C
Low: 1°C
Dec
Avg High Avg Temp Avg Low

Precipitation

0 mm 75 mm 150 mm 225 mm
206 mm
205.7 mm
Jan
137 mm
137.2 mm
Feb
135 mm
134.6 mm
Mar
84 mm
83.8 mm
Apr
51 mm
50.8 mm
May
38 mm
38.1 mm
Jun
8 mm
7.6 mm
Jul
25 mm
25.4 mm
Aug
53 mm
53.3 mm
Sep
140 mm
139.7 mm
Oct
231 mm
231.1 mm
Nov
180 mm
180.3 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h16h15.5h14h12.5h10.5h9h8h
Jan: 7:48 AM – 4:12 PM · 8h 24m
Feb: 7:04 AM – 4:56 PM · 9h 52m
Mar: 6:13 AM – 5:47 PM · 11h 34m
Apr: 5:15 AM – 6:45 PM · 13h 29m
May: 4:26 AM – 7:34 PM · 15h 07m
Jun: 3:59 AM – 8:01 PM · 16h 01m
Jul: 4:10 AM – 7:50 PM · 15h 39m
Aug: 4:53 AM – 7:07 PM · 14h 13m
Sep: 5:50 AM – 6:10 PM · 12h 21m
Oct: 6:46 AM – 5:14 PM · 10h 29m
Nov: 7:36 AM – 4:24 PM · 8h 49m
Dec: 8:01 AM – 3:59 PM · 7h 58m
Daylight Longest: 16h 03m · Shortest: 7h 57m

Nearby Stations

Little Qualicum Hatchery, BC May 1 - October 9 Mud Bay, BCApril 15 - October 28 Sisters Island, BC February 7 - December 7 Coombs, BCMay 3 - October 9 Port Alberni Cox Lake, BC April 29 - October 20 Port Alberni (Aut), BC April 26 - October 23

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