Frost Dates for Kootenay Np West Gate, 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 10
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 25
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 16
First Fall Frost September 19

Hard Freeze (−2°C)

Last Spring Hard Freeze April 18
First Fall Hard Freeze October 9
50.63°N, -116.07°W © OpenStreetMap

Growing Season

138 Days May 10 to September 25

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

-10° 0° 10° 20° 30°
-7°
High: -4°C
Avg: -7°C
Low: -10°C
Jan
-4°
High: 0°C
Avg: -4°C
Low: -8°C
Feb
2°
High: 7°C
Avg: 2°C
Low: -4°C
Mar
7°
High: 14°C
Avg: 7°C
Low: 1°C
Apr
12°
High: 19°C
Avg: 12°C
Low: 5°C
May
15°
High: 22°C
Avg: 15°C
Low: 9°C
Jun
19°
High: 26°C
Avg: 19°C
Low: 12°C
Jul
18°
High: 26°C
Avg: 18°C
Low: 11°C
Aug
12°
High: 19°C
Avg: 12°C
Low: 6°C
Sep
5°
High: 10°C
Avg: 5°C
Low: 0°C
Oct
-2°
High: 1°C
Avg: -2°C
Low: -5°C
Nov
-7°
High: -4°C
Avg: -7°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
15 mm
15.2 mm
Jan
10 mm
10.2 mm
Feb
3 mm
2.5 mm
Mar
23 mm
22.9 mm
Apr
48 mm
48.3 mm
May
76 mm
76.2 mm
Jun
51 mm
50.8 mm
Jul
38 mm
38.1 mm
Aug
18 mm
17.8 mm
Sep
18 mm
17.8 mm
Oct
28 mm
27.9 mm
Nov
10 mm
10.2 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8h10h11.5h13.5h15.5h16h16h14.5h12.5h10.5h8.5h8h
Jan: 7:53 AM – 4:07 PM · 8h 13m
Feb: 7:07 AM – 4:53 PM · 9h 46m
Mar: 6:14 AM – 5:46 PM · 11h 32m
Apr: 5:13 AM – 6:47 PM · 13h 33m
May: 4:22 AM – 7:38 PM · 15h 16m
Jun: 3:53 AM – 8:07 PM · 16h 14m
Jul: 4:05 AM – 7:55 PM · 15h 50m
Aug: 4:50 AM – 7:10 PM · 14h 19m
Sep: 5:49 AM – 6:11 PM · 12h 22m
Oct: 6:48 AM – 5:12 PM · 10h 25m
Nov: 7:40 AM – 4:20 PM · 8h 40m
Dec: 8:07 AM – 3:53 PM · 7h 46m
Daylight Longest: 16h 15m · Shortest: 7h 45m

Nearby Stations

Nakiska Ridgetop, AB June 23 - July 19 Banff Cs, ABJune 15 - August 16 Duncan Lake Dam, BC May 11 - September 27 Kananaskis, ABJune 16 - August 15 Bow Valley, ABJune 13 - August 9 Yoho Park, BCJune 21 - August 4

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