Frost Dates for Baynes Lake Kootenay River, 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 27
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 9
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 2
First Fall Frost September 4

Hard Freeze (−2°C)

Last Spring Hard Freeze May 13
First Fall Hard Freeze September 26
49.23°N, -115.22°W © OpenStreetMap

Growing Season

105 Days May 27 to September 9

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°
-5°
High: -1°C
Avg: -5°C
Low: -10°C
Jan
-3°
High: 3°C
Avg: -3°C
Low: -8°C
Feb
2°
High: 9°C
Avg: 2°C
Low: -4°C
Mar
7°
High: 14°C
Avg: 7°C
Low: -1°C
Apr
11°
High: 19°C
Avg: 11°C
Low: 4°C
May
15°
High: 22°C
Avg: 15°C
Low: 8°C
Jun
19°
High: 28°C
Avg: 19°C
Low: 10°C
Jul
18°
High: 27°C
Avg: 18°C
Low: 9°C
Aug
13°
High: 22°C
Avg: 13°C
Low: 4°C
Sep
6°
High: 13°C
Avg: 6°C
Low: 0°C
Oct
0°
High: 4°C
Avg: 0°C
Low: -4°C
Nov
-5°
High: -2°C
Avg: -5°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
28 mm
27.9 mm
Jan
5 mm
5.1 mm
Feb
18 mm
17.8 mm
Mar
10 mm
10.2 mm
Apr
41 mm
40.6 mm
May
79 mm
78.7 mm
Jun
30 mm
30.5 mm
Jul
15 mm
15.2 mm
Aug
20 mm
20.3 mm
Sep
18 mm
17.8 mm
Oct
46 mm
45.7 mm
Nov
43 mm
43.2 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h16h15.5h14h12.5h10.5h9h8h
Jan: 7:47 AM – 4:13 PM · 8h 25m
Feb: 7:04 AM – 4:56 PM · 9h 53m
Mar: 6:13 AM – 5:47 PM · 11h 34m
Apr: 5:16 AM – 6:44 PM · 13h 29m
May: 4:27 AM – 7:33 PM · 15h 06m
Jun: 4:00 AM – 7:60 PM · 15h 60m
Jul: 4:11 AM – 7:49 PM · 15h 38m
Aug: 4:54 AM – 7:06 PM · 14h 12m
Sep: 5:50 AM – 6:10 PM · 12h 21m
Oct: 6:45 AM – 5:15 PM · 10h 29m
Nov: 7:35 AM – 4:25 PM · 8h 50m
Dec: 8:00 AM – 3:60 PM · 7h 60m
Daylight Longest: 16h 02m · Shortest: 7h 58m

Nearby Stations

Fernie, BCMay 30 - September 9 Wardner Ktny Hatchery, BC May 24 - September 13 Eureka Rs, MT May 11 - September 27 Yaak 9nne, MT Fortine 1 N, MT May 16 - September 18 Cranbrook A, BC May 15 - September 23

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!

Planter app garden planner preview