Frost Dates for Brocket Agdm, AB

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 14
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 21
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 15

Hard Freeze (−2°C)

Last Spring Hard Freeze May 4
First Fall Hard Freeze October 1
49.62°N, -113.82°W © OpenStreetMap

Growing Season

130 Days May 14 to September 21

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 4a

Avg. annual minimum: −30 to −25°F (−34 to −32°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°
-4°
High: 1°C
Avg: -4°C
Low: -9°C
Jan
-5°
High: 1°C
Avg: -5°C
Low: -10°C
Feb
0°
High: 6°C
Avg: 0°C
Low: -6°C
Mar
5°
High: 11°C
Avg: 5°C
Low: -1°C
Apr
10°
High: 17°C
Avg: 10°C
Low: 4°C
May
14°
High: 21°C
Avg: 14°C
Low: 8°C
Jun
18°
High: 26°C
Avg: 18°C
Low: 10°C
Jul
17°
High: 26°C
Avg: 17°C
Low: 9°C
Aug
13°
High: 20°C
Avg: 13°C
Low: 5°C
Sep
6°
High: 12°C
Avg: 6°C
Low: 0°C
Oct
0°
High: 5°C
Avg: 0°C
Low: -5°C
Nov
-5°
High: 0°C
Avg: -5°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 30 mm 60 mm 90 mm
0 mm
0.0 mm
Jan
5 mm
5.1 mm
Feb
5 mm
5.1 mm
Mar
20 mm
20.3 mm
Apr
51 mm
50.8 mm
May
84 mm
83.8 mm
Jun
28 mm
27.9 mm
Jul
33 mm
33.0 mm
Aug
28 mm
27.9 mm
Sep
10 mm
10.2 mm
Oct
3 mm
2.5 mm
Nov
0 mm
0.0 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

Pincher Creek Climate, AB May 23 - September 15 Pincher Creek (Aut), AB May 26 - September 14 Connelly Creek, AB May 30 - September 6 Beaver Mines, AB June 1 - September 7 Claresholm, AB May 20 - September 14 Crowsnest, ABJune 16 - August 17

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