Frost Dates for Brooks, AB

Elevation: 747 m

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 18
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 20
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 23
First Fall Frost September 16

Hard Freeze (−2°C)

Last Spring Hard Freeze May 9
First Fall Hard Freeze September 27
50.55°N, -111.85°W © OpenStreetMap

Growing Season

125 Days May 18 to September 20

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 3b

Avg. annual minimum: −35 to −30°F (−37 to −34°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

BSk Cold Semi-Arid (Steppe)

Cool to cold with low rainfall and wide temperature swings. Common in the western Great Plains and central Asia. Short growing seasons benefit from season extension techniques.

Köppen climate map

Temperature

-20° -5° 10° 25°
-9°
High: -3°C
Avg: -9°C
Low: -16°C
Jan
-7°
High: -1°C
Avg: -7°C
Low: -14°C
Feb
-2°
High: 5°C
Avg: -2°C
Low: -9°C
Mar
5°
High: 13°C
Avg: 5°C
Low: -2°C
Apr
11°
High: 19°C
Avg: 11°C
Low: 4°C
May
16°
High: 23°C
Avg: 16°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: 5°C
Sep
5°
High: 13°C
Avg: 5°C
Low: -2°C
Oct
-2°
High: 4°C
Avg: -2°C
Low: -9°C
Nov
-9°
High: -3°C
Avg: -9°C
Low: -15°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
0 mm
0.0 mm
Jan
0 mm
0.0 mm
Feb
0 mm
0.0 mm
Mar
3 mm
2.5 mm
Apr
20 mm
20.3 mm
May
69 mm
68.6 mm
Jun
28 mm
27.9 mm
Jul
23 mm
22.9 mm
Aug
15 mm
15.2 mm
Sep
5 mm
5.1 mm
Oct
3 mm
2.5 mm
Nov
0 mm
0.0 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8h10h11.5h13.5h15.5h16h16h14.5h12.5h10.5h8.5h8h
Jan: 7:53 AM – 4:07 PM · 8h 14m
Feb: 7:07 AM – 4:53 PM · 9h 47m
Mar: 6:14 AM – 5:46 PM · 11h 33m
Apr: 5:13 AM – 6:47 PM · 13h 33m
May: 4:22 AM – 7:38 PM · 15h 15m
Jun: 3:54 AM – 8:06 PM · 16h 13m
Jul: 4:05 AM – 7:55 PM · 15h 49m
Aug: 4:51 AM – 7:09 PM · 14h 19m
Sep: 5:49 AM – 6:11 PM · 12h 22m
Oct: 6:47 AM – 5:13 PM · 10h 25m
Nov: 7:40 AM – 4:20 PM · 8h 40m
Dec: 8:06 AM – 3:54 PM · 7h 47m
Daylight Longest: 16h 15m · Shortest: 7h 46m

Nearby Stations

Vauxhall Cda Cs, AB May 14 - September 20 Queenstown, AB May 20 - September 18 Hussar Agdm, AB May 16 - September 20 Bow Island, AB May 11 - September 21 Medicine Hat Rcs, AB May 14 - September 27 Lethbridge Cda, AB May 12 - September 24

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