Frost Dates for Wasa, 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 12
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 30
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 17
First Fall Frost September 23

Hard Freeze (−2°C)

Last Spring Hard Freeze April 22
First Fall Hard Freeze October 12
49.82°N, -115.63°W © OpenStreetMap

Growing Season

141 Days May 12 to September 30

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 5b

Avg. annual minimum: −15 to −10°F (−26 to −23°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

-10° 0° 10° 20° 30°
-6°
High: -2°C
Avg: -6°C
Low: -9°C
Jan
-2°
High: 2°C
Avg: -2°C
Low: -7°C
Feb
2°
High: 8°C
Avg: 2°C
Low: -3°C
Mar
7°
High: 13°C
Avg: 7°C
Low: 0°C
Apr
12°
High: 19°C
Avg: 12°C
Low: 4°C
May
15°
High: 22°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: 20°C
Avg: 13°C
Low: 6°C
Sep
6°
High: 11°C
Avg: 6°C
Low: 1°C
Oct
-1°
High: 3°C
Avg: -1°C
Low: -4°C
Nov
-6°
High: -3°C
Avg: -6°C
Low: -9°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 80 mm
10 mm
10.2 mm
Jan
5 mm
5.1 mm
Feb
25 mm
25.4 mm
Mar
25 mm
25.4 mm
Apr
61 mm
61.0 mm
May
76 mm
76.2 mm
Jun
56 mm
55.9 mm
Jul
25 mm
25.4 mm
Aug
36 mm
35.6 mm
Sep
25 mm
25.4 mm
Oct
38 mm
38.1 mm
Nov
20 mm
20.3 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h16h15.5h14.5h12.5h10.5h9h8h
Jan: 7:50 AM – 4:10 PM · 8h 20m
Feb: 7:05 AM – 4:55 PM · 9h 50m
Mar: 6:13 AM – 5:47 PM · 11h 33m
Apr: 5:15 AM – 6:45 PM · 13h 31m
May: 4:25 AM – 7:35 PM · 15h 10m
Jun: 3:57 AM – 8:03 PM · 16h 05m
Jul: 4:09 AM – 7:51 PM · 15h 43m
Aug: 4:52 AM – 7:08 PM · 14h 15m
Sep: 5:49 AM – 6:11 PM · 12h 21m
Oct: 6:46 AM – 5:14 PM · 10h 28m
Nov: 7:37 AM – 4:23 PM · 8h 46m
Dec: 8:03 AM – 3:57 PM · 7h 54m
Daylight Longest: 16h 07m · Shortest: 7h 53m

Nearby Stations

Cranbrook A, BC May 15 - September 23 Kimberley Pcc, BC May 18 - September 20 Wardner Ktny Hatchery, BC May 24 - September 13 Sparwood Cs, BC May 29 - September 7 Sparwood, BCMay 28 - September 6 Fernie, BCMay 30 - September 9

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