Frost Dates for Suskwa Valley, 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. June 1
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. September 7
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 June 7
First Fall Frost August 26

Hard Freeze (−2°C)

Last Spring Hard Freeze May 13
First Fall Hard Freeze September 30
55.28°N, -127.17°W © OpenStreetMap

Growing Season

98 Days June 1 to September 7

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 5a

Avg. annual minimum: −20 to −15°F (−29 to −26°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

Dfc Subarctic

Short, cool summers and long, very cold winters. Growing seasons of 3–4 months require fast-maturing varieties. Root vegetables, potatoes, and cold-hardy greens are the most reliable.

Köppen climate map

Temperature

-10° 0° 10° 20°
-7°
High: -4°C
Avg: -7°C
Low: -9°C
Jan
-4°
High: 0°C
Avg: -4°C
Low: -8°C
Feb
0°
High: 5°C
Avg: 0°C
Low: -5°C
Mar
4°
High: 10°C
Avg: 4°C
Low: -2°C
Apr
9°
High: 16°C
Avg: 9°C
Low: 2°C
May
12°
High: 19°C
Avg: 12°C
Low: 6°C
Jun
14°
High: 21°C
Avg: 14°C
Low: 8°C
Jul
14°
High: 20°C
Avg: 14°C
Low: 7°C
Aug
10°
High: 15°C
Avg: 10°C
Low: 4°C
Sep
4°
High: 8°C
Avg: 4°C
Low: 0°C
Oct
-2°
High: 1°C
Avg: -2°C
Low: -4°C
Nov
-6°
High: -3°C
Avg: -6°C
Low: -8°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 30 mm 60 mm 90 mm
71 mm
71.1 mm
Jan
38 mm
38.1 mm
Feb
46 mm
45.7 mm
Mar
48 mm
48.3 mm
Apr
64 mm
63.5 mm
May
79 mm
78.7 mm
Jun
79 mm
78.7 mm
Jul
81 mm
81.3 mm
Aug
81 mm
81.3 mm
Sep
89 mm
88.9 mm
Oct
84 mm
83.8 mm
Nov
71 mm
71.1 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec7.5h9.5h11.5h14h16h17h16.5h15h12.5h10h8h7h
Jan: 8:17 AM – 3:43 PM · 7h 27m
Feb: 7:20 AM – 4:40 PM · 9h 21m
Mar: 6:16 AM – 5:44 PM · 11h 27m
Apr: 5:05 AM – 6:55 PM · 13h 51m
May: 4:02 AM – 7:58 PM · 15h 55m
Jun: 3:26 AM – 8:34 PM · 17h 08m
Jul: 3:41 AM – 8:19 PM · 16h 37m
Aug: 4:37 AM – 7:23 PM · 14h 46m
Sep: 5:47 AM – 6:13 PM · 12h 26m
Oct: 6:57 AM – 5:03 PM · 10h 07m
Nov: 8:00 AM – 3:60 PM · 7h 59m
Dec: 8:34 AM – 3:26 PM · 6h 52m
Daylight Longest: 17h 10m · Shortest: 6h 50m

Nearby Stations

Smithers, BCMay 29 - September 12 Smithers A, BC May 27 - September 13 Topley Landing, BC May 24 - September 19 Houston, BCMay 31 - September 8 Terrace Pcc, BC April 26 - October 17 Terrace A, BC April 27 - October 18

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