Frost Dates for Grand Centre, AB

Based on data from Cold Lake A weather station, 3 miles away

Elevation: 534 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 19
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 16
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 10

Hard Freeze (−2°C)

Last Spring Hard Freeze May 7
First Fall Hard Freeze September 28
54.42°N, -110.21°W © OpenStreetMap

Growing Season

120 Days May 19 to September 16

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 3a

Avg. annual minimum: −40 to −35°F (−40 to −37°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

-20° -5° 10° 25°
-15°
High: -10°C
Avg: -15°C
Low: -20°C
Jan
-12°
High: -6°C
Avg: -12°C
Low: -17°C
Feb
-5°
High: 0°C
Avg: -5°C
Low: -11°C
Mar
4°
High: 9°C
Avg: 4°C
Low: -2°C
Apr
11°
High: 17°C
Avg: 11°C
Low: 4°C
May
15°
High: 21°C
Avg: 15°C
Low: 9°C
Jun
18°
High: 24°C
Avg: 18°C
Low: 12°C
Jul
16°
High: 23°C
Avg: 16°C
Low: 10°C
Aug
11°
High: 17°C
Avg: 11°C
Low: 5°C
Sep
4°
High: 8°C
Avg: 4°C
Low: -1°C
Oct
-6°
High: -2°C
Avg: -6°C
Low: -10°C
Nov
-13°
High: -9°C
Avg: -13°C
Low: -18°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
0 mm
0.0 mm
Feb
8 mm
7.6 mm
Mar
23 mm
22.9 mm
Apr
33 mm
33.0 mm
May
86 mm
86.4 mm
Jun
81 mm
81.3 mm
Jul
61 mm
61.0 mm
Aug
33 mm
33.0 mm
Sep
8 mm
7.6 mm
Oct
8 mm
7.6 mm
Nov
3 mm
2.5 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec7.5h9.5h11.5h14h16h17h16.5h14.5h12.5h10h8h7h
Jan: 8:42 AM – 4:19 PM · 7h 36m
Feb: 7:53 AM – 5:19 PM · 9h 26m
Mar: 7:47 AM – 7:15 PM · 11h 28m
Apr: 6:28 AM – 8:15 PM · 13h 47m
May: 5:24 AM – 9:11 PM · 15h 47m
Jun: 4:53 AM – 9:49 PM · 16h 56m
Jul: 5:13 AM – 9:40 PM · 16h 28m
Aug: 6:05 AM – 8:46 PM · 14h 40m
Sep: 7:03 AM – 7:28 PM · 12h 25m
Oct: 8:01 AM – 6:12 PM · 10h 11m
Nov: 8:02 AM – 4:10 PM · 8h 08m
Dec: 8:45 AM – 3:49 PM · 7h 03m
Daylight Mountain Time (MT) Longest: 16h 59m · Shortest: 7h 02m

Nearby Stations

Rich Lake Agdm, AB May 28 - September 10 Lloydminster A, AB May 17 - September 17 Butte St Pierre, SK June 7 - August 16 Ranfurly 2nw, AB May 18 - September 17 Waseca, SKMay 20 - September 17

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