Frost Dates for Cranbrook 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. May 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. September 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 May 19
First Fall Frost September 17

Hard Freeze (−2°C)

Last Spring Hard Freeze May 2
First Fall Hard Freeze October 5
49.62°N, -115.78°W © OpenStreetMap

Growing Season

131 Days May 15 to September 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 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.

Dfb Warm-Summer Continental

Warm summers and cold, snowy winters. A shorter growing season than hot-summer continental. Hardy vegetables, root crops, and cool-season greens do well. Season extension is valuable.

Köppen climate map

Temperature

-15° 0° 15° 30°
-6°
High: -2°C
Avg: -6°C
Low: -10°C
Jan
-3°
High: 2°C
Avg: -3°C
Low: -8°C
Feb
2°
High: 7°C
Avg: 2°C
Low: -4°C
Mar
6°
High: 13°C
Avg: 6°C
Low: 0°C
Apr
11°
High: 18°C
Avg: 11°C
Low: 5°C
May
15°
High: 21°C
Avg: 15°C
Low: 8°C
Jun
19°
High: 27°C
Avg: 19°C
Low: 11°C
Jul
18°
High: 26°C
Avg: 18°C
Low: 10°C
Aug
13°
High: 21°C
Avg: 13°C
Low: 6°C
Sep
6°
High: 12°C
Avg: 6°C
Low: 0°C
Oct
-1°
High: 3°C
Avg: -1°C
Low: -5°C
Nov
-6°
High: -3°C
Avg: -6°C
Low: -10°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 20 mm 40 mm 60 mm
8 mm
7.6 mm
Jan
3 mm
2.5 mm
Feb
8 mm
7.6 mm
Mar
8 mm
7.6 mm
Apr
38 mm
38.1 mm
May
69 mm
68.6 mm
Jun
30 mm
30.5 mm
Jul
15 mm
15.2 mm
Aug
25 mm
25.4 mm
Sep
5 mm
5.1 mm
Oct
36 mm
35.6 mm
Nov
28 mm
27.9 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h16h15.5h14h12.5h10.5h9h8h
Jan: 7:49 AM – 4:11 PM · 8h 22m
Feb: 7:04 AM – 4:56 PM · 9h 51m
Mar: 6:13 AM – 5:47 PM · 11h 33m
Apr: 5:15 AM – 6:45 PM · 13h 30m
May: 4:26 AM – 7:34 PM · 15h 09m
Jun: 3:58 AM – 8:02 PM · 16h 04m
Jul: 4:10 AM – 7:50 PM · 15h 41m
Aug: 4:53 AM – 7:07 PM · 14h 14m
Sep: 5:50 AM – 6:10 PM · 12h 21m
Oct: 6:46 AM – 5:14 PM · 10h 28m
Nov: 7:36 AM – 4:24 PM · 8h 47m
Dec: 8:02 AM – 3:58 PM · 7h 56m
Daylight Longest: 16h 05m · Shortest: 7h 55m

Nearby Stations

Kimberley Pcc, BC May 18 - September 20 Wasa, BCMay 12 - September 30 Wardner Ktny Hatchery, BC May 24 - September 13 Fernie, BCMay 30 - September 9 Baynes Lake Kootenay River, BC May 27 - September 9 Sparwood, BCMay 28 - September 6

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