Frost Dates for Nanaimo A, 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 15
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 27
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 22
First Fall Frost October 22

Hard Freeze (−2°C)

Last Spring Hard Freeze March 21
First Fall Hard Freeze November 12
49.05°N, -123.87°W © OpenStreetMap

Growing Season

195 Days April 15 to October 27

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: 7°C
Avg: 4°C
Low: 0°C
Jan
4°
High: 9°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
13°
High: 18°C
Avg: 13°C
Low: 7°C
May
16°
High: 21°C
Avg: 16°C
Low: 11°C
Jun
19°
High: 24°C
Avg: 19°C
Low: 13°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: 15°C
Avg: 10°C
Low: 6°C
Oct
6°
High: 9°C
Avg: 6°C
Low: 2°C
Nov
3°
High: 7°C
Avg: 3°C
Low: 0°C
Dec
Avg High Avg Temp Avg Low

Precipitation

0 mm 50 mm 100 mm 150 mm 200 mm
183 mm
182.9 mm
Jan
122 mm
121.9 mm
Feb
119 mm
119.4 mm
Mar
69 mm
68.6 mm
Apr
56 mm
55.9 mm
May
36 mm
35.6 mm
Jun
15 mm
15.2 mm
Jul
23 mm
22.9 mm
Aug
38 mm
38.1 mm
Sep
119 mm
119.4 mm
Oct
175 mm
175.3 mm
Nov
193 mm
193.0 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h16h15.5h14h12.5h10.5h9h8h
Jan: 7:47 AM – 4:13 PM · 8h 27m
Feb: 7:03 AM – 4:57 PM · 9h 54m
Mar: 6:13 AM – 5:47 PM · 11h 34m
Apr: 5:16 AM – 6:44 PM · 13h 28m
May: 4:28 AM – 7:32 PM · 15h 05m
Jun: 4:01 AM – 7:59 PM · 15h 58m
Jul: 4:12 AM – 7:48 PM · 15h 36m
Aug: 4:54 AM – 7:06 PM · 14h 11m
Sep: 5:50 AM – 6:10 PM · 12h 20m
Oct: 6:45 AM – 5:15 PM · 10h 30m
Nov: 7:34 AM – 4:26 PM · 8h 51m
Dec: 7:59 AM – 4:01 PM · 8h 02m
Daylight Longest: 15h 60m · Shortest: 8h 00m

Nearby Stations

Gabriola Island, BC April 20 - October 21 Chemainus, BC March 10 - November 25 Entrance Island, BC February 22 - December 2 Entrance Island Cs, BC February 15 - November 23 Galiano North, BC February 22 - November 27 Saltspring St Mary'S L, BC March 10 - November 29

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