Frost Dates for Wainwright, AB

Based on data from Wainwright Cfb Airfield 21 weather station, 10 miles away

Elevation: 680 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 21

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 18

Hard Freeze (−2°C)

Last Spring Hard Freeze May 5
First Fall Hard Freeze September 30
52.83°N, 110.85°W © OpenStreetMap

Growing Season

127 Days May 17 to September 21

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 3b

Avg. annual minimum: −37 to −34°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-8°-13°-18°
February-6°-11°-17°
March0°-5°-10°
April11°4°-2°
May17°11°4°
June21°15°9°
July24°18°12°
August24°17°10°
September18°12°5°
October10°4°-1°
November0°-4°-9°
December-6°-11°-16°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January8
February5
March5
April25
May46
June71
July48
August43
September30
October15
November5
December0

Sunrise / Sunset

Daylight Mountain Time (MT) Longest: 16h 39m · Shortest: 7h 21m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Mountain Time (MT))
Month Sunrise Sunset Daylight
January8:37 AM4:30 PM7h 53m
February7:52 AM5:26 PM9h 35m
March7:49 AM7:19 PM11h 30m
April6:34 AM8:15 PM13h 41m
May5:34 AM9:07 PM15h 33m
June5:06 AM9:43 PM16h 37m
July5:25 AM9:35 PM16h 11m
August6:13 AM8:44 PM14h 31m
September7:07 AM7:31 PM12h 23m
October8:01 AM6:18 PM10h 17m
November7:59 AM4:20 PM8h 22m
December8:39 AM4:01 PM7h 23m

Nearby Stations

Fabyan, ABMay 21 - September 14 Sedgewick Town, AB May 19 - September 15 Ranfurly 2nw, AB May 18 - September 17 Forestburg Plant Site, AB May 12 - September 25 Lloydminster A, AB May 17 - September 17 Coronation Climate, AB May 29 - September 11

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