Frost Dates for Whonnock, Canada

Based on data from Maple Ridge Kanaka Creek weather station, 3 miles away

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 22
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 25
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 30
First Fall Frost October 20

Hard Freeze (−2°C)

Last Spring Hard Freeze March 18
First Fall Hard Freeze November 14
49.18°N, -122.47°W © OpenStreetMap

Growing Season

186 Days April 22 to October 25

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 8a

Avg. annual minimum: 10 to 15°F (−12 to −9°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° 10° 20°
3°
High: 5°C
Avg: 3°C
Low: 0°C
Jan
4°
High: 8°C
Avg: 4°C
Low: 0°C
Feb
6°
High: 11°C
Avg: 6°C
Low: 2°C
Mar
9°
High: 14°C
Avg: 9°C
Low: 4°C
Apr
12°
High: 18°C
Avg: 12°C
Low: 7°C
May
15°
High: 20°C
Avg: 15°C
Low: 10°C
Jun
18°
High: 24°C
Avg: 18°C
Low: 12°C
Jul
18°
High: 24°C
Avg: 18°C
Low: 12°C
Aug
15°
High: 21°C
Avg: 15°C
Low: 9°C
Sep
10°
High: 14°C
Avg: 10°C
Low: 6°C
Oct
5°
High: 8°C
Avg: 5°C
Low: 2°C
Nov
2°
High: 4°C
Avg: 2°C
Low: 0°C
Dec
Avg High Avg Temp Avg Low

Precipitation

0 mm 75 mm 150 mm 225 mm 300 mm
279 mm
279.4 mm
Jan
147 mm
147.3 mm
Feb
188 mm
188.0 mm
Mar
140 mm
139.7 mm
Apr
122 mm
121.9 mm
May
91 mm
91.4 mm
Jun
56 mm
55.9 mm
Jul
58 mm
58.4 mm
Aug
99 mm
99.1 mm
Sep
188 mm
188.0 mm
Oct
284 mm
284.5 mm
Nov
234 mm
233.7 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h16h15.5h14h12.5h10.5h9h8h
Jan: 7:47 AM – 4:13 PM · 8h 25m
Feb: 7:04 AM – 4:56 PM · 9h 53m
Mar: 6:13 AM – 5:47 PM · 11h 34m
Apr: 5:16 AM – 6:44 PM · 13h 29m
May: 4:27 AM – 7:33 PM · 15h 06m
Jun: 4:00 AM – 7:60 PM · 15h 60m
Jul: 4:11 AM – 7:49 PM · 15h 38m
Aug: 4:54 AM – 7:06 PM · 14h 12m
Sep: 5:50 AM – 6:10 PM · 12h 21m
Oct: 6:45 AM – 5:15 PM · 10h 30m
Nov: 7:35 AM – 4:25 PM · 8h 50m
Dec: 8:00 AM – 3:60 PM · 7h 60m
Daylight Longest: 16h 01m · Shortest: 7h 59m

Nearby Stations

Haney Ubc Rf Admin, BC April 8 - November 7 Pitt Meadows Cs, BC April 7 - November 2 Mission West Abbey, BC March 21 - November 18 Abbotsford A, BC April 2 - November 5 Port Moody Glenayre, BC March 23 - November 10 White Rock Campbell Scientific, BC March 16 - November 14

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