Frost Dates for Coronach Spc, SK

Elevation: 756 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 26
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 13

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 June 1
First Fall Frost September 10

Hard Freeze (−2°C)

Last Spring Hard Freeze May 15
First Fall Hard Freeze September 19
49.05°N, 105.48°W © OpenStreetMap

Growing Season

110 Days May 26 to September 13

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.
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

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-6°-11°-17°
February-4°-10°-16°
March3°-3°-9°
April12°5°-3°
May18°11°3°
June23°15°8°
July27°19°11°
August27°18°10°
September21°13°4°
October12°5°-2°
November3°-3°-9°
December-4°-9°-15°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January0
February0
March0
April15
May48
June79
July51
August25
September15
October8
November0
December0

Sunrise / Sunset

Daylight Longest: 15h 60m · Shortest: 8h 00m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:47 AM4:13 PM8h 27m
February7:03 AM4:57 PM9h 54m
March6:13 AM5:47 PM11h 34m
April5:16 AM6:44 PM13h 28m
May4:28 AM7:32 PM15h 05m
June4:01 AM7:59 PM15h 58m
July4:12 AM7:48 PM15h 36m
August4:54 AM7:06 PM14h 11m
September5:50 AM6:10 PM12h 20m
October6:45 AM5:15 PM10h 30m
November7:34 AM4:26 PM8h 51m
December7:59 AM4:01 PM8h 02m

Nearby Stations

Coronach, SKMay 24 - September 12 Scobey 4 Nw, MT May 28 - September 6 Rockglen (Aut), SK May 19 - September 23 Redstone, MTMay 28 - September 7 Bredette, MTMay 20 - September 21 Wolf Point 34 Ne, MT May 13 - September 28

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