Frost Dates for Nitinat River Hatchery, 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 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. October 23
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 11

Hard Freeze (−2°C)

Last Spring Hard Freeze March 9
First Fall Hard Freeze November 19
48.87°N, -124.65°W © OpenStreetMap

Growing Season

185 Days April 21 to October 23

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° 10° 20°
4°
High: 7°C
Avg: 4°C
Low: 1°C
Jan
5°
High: 9°C
Avg: 5°C
Low: 1°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: 17°C
Avg: 12°C
Low: 7°C
May
14°
High: 19°C
Avg: 14°C
Low: 9°C
Jun
17°
High: 22°C
Avg: 17°C
Low: 11°C
Jul
17°
High: 22°C
Avg: 17°C
Low: 11°C
Aug
15°
High: 20°C
Avg: 15°C
Low: 9°C
Sep
11°
High: 15°C
Avg: 11°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 175 mm 350 mm 525 mm
655 mm
655.3 mm
Jan
351 mm
350.5 mm
Feb
409 mm
408.9 mm
Mar
264 mm
264.2 mm
Apr
122 mm
121.9 mm
May
97 mm
96.5 mm
Jun
61 mm
61.0 mm
Jul
99 mm
99.1 mm
Aug
157 mm
157.5 mm
Sep
396 mm
396.2 mm
Oct
605 mm
604.5 mm
Nov
551 mm
551.2 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h16h15.5h14h12.5h10.5h9h8h
Jan: 7:46 AM – 4:14 PM · 8h 28m
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 03m
Jun: 4:02 AM – 7:58 PM · 15h 57m
Jul: 4:13 AM – 7:47 PM · 15h 35m
Aug: 4:55 AM – 7:05 PM · 14h 11m
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 03m
Daylight Longest: 15h 58m · Shortest: 8h 02m

Nearby Stations

Pachena Point, BC April 6 - November 8 Port Renfrew, BC April 11 - October 31 Port Alberni Cox Lake, BC April 29 - October 20 Cowichan Lake Forestry, BC April 21 - November 2 Cape Beale Light, BC February 26 - November 27 Coombs, BCMay 3 - October 9

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