Frost Dates for Violet Grove Cs, AB

Elevation: 903 m

Frost Dates

Last Spring Frost (50%) A 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. May 17
First Fall Frost (50%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. September 19

30% Probability

Only 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 21
First Fall Frost September 14

Hard Freeze (−2°C)

Last Spring Hard Freeze May 7
First Fall Hard Freeze September 28
53.15°N, 115.13°W © OpenStreetMap

Growing Season

125 Days May 17 to September 19

USDA Hardiness Zone

Hardiness 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: −34 to −32°C

Learn more

Köppen Climate

The 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

Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)
Temperature table
Average monthly temperatures (°C)
Month Avg High Avg Temp Avg Low
January-2°-8°-13°
February-1°-7°-13°
March3°-3°-9°
April10°4°-2°
May16°10°3°
June20°14°7°
July23°16°10°
August22°15°9°
September17°11°4°
October10°4°-1°
November2°-3°-7°
December-2°-7°-12°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January3
February3
March3
April15
May69
June84
July104
August58
September56
October13
November5
December3

Sunrise / Sunset

Daylight Mountain Time (MT) Longest: 16h 43m · Shortest: 7h 17m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Mountain Time (MT))
Month Sunrise Sunset Daylight
January8:55 AM4:45 PM7h 50m
February8:09 AM5:42 PM9h 33m
March8:05 AM7:35 PM11h 30m
April6:50 AM8:32 PM13h 42m
May5:49 AM9:25 PM15h 36m
June5:20 AM10:01 PM16h 41m
July5:39 AM9:53 PM16h 14m
August6:28 AM9:01 PM14h 33m
September7:23 AM7:47 PM12h 24m
October8:18 AM6:34 PM10h 16m
November8:16 AM4:35 PM8h 19m
December8:57 AM4:16 PM7h 19m

Nearby Stations

Breton, ABMay 20 - September 16 Breton Plots, AB May 18 - September 18 Entwistle, AB May 20 - September 15 Edmonton Stony Plain, AB May 12 - September 22 Edmonton Stony Plain Cs, AB May 8 - September 23 Rocky Mtn House (Aut), AB June 8 - August 23

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