Frost Dates for Shawinigan, QC

Elevation: 110 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 6
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. October 8

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 10
First Fall Frost October 3

Hard Freeze (−2°C)

Last Spring Hard Freeze April 20
First Fall Hard Freeze October 21
46.57°N, 72.73°W © OpenStreetMap

Growing Season

155 Days May 6 to October 8

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 5a

Avg. annual minimum: −29 to −26°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-7°-11°-16°
February-4°-9°-15°
March1°-4°-8°
April9°4°-1°
May18°12°6°
June23°17°11°
July26°20°14°
August24°19°13°
September20°14°9°
October12°7°3°
November4°0°-3°
December-3°-7°-11°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January0
February0
March20
April175
May84
June102
July84
August91
September99
October122
November66
December23

Sunrise / Sunset

Daylight Eastern Time (ET) Longest: 15h 38m · Shortest: 8h 22m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Eastern Time (ET))
Month Sunrise Sunset Daylight
January7:37 AM4:23 PM8h 46m
February7:03 AM5:08 PM10h 04m
March7:13 AM6:49 PM11h 36m
April6:11 AM7:32 PM13h 21m
May5:23 AM8:11 PM14h 49m
June5:03 AM8:39 PM15h 37m
July5:18 AM8:35 PM15h 17m
August5:55 AM7:55 PM14h 00m
September6:36 AM6:55 PM12h 19m
October7:17 AM5:55 PM10h 38m
November7:02 AM4:10 PM9h 08m
December7:35 AM3:58 PM8h 23m

Nearby Stations

St Narcisse, QC May 14 - September 30 Trois-Rivieres, QC April 25 - October 24 Nicolet, QCApril 27 - October 12 Ste Anne De La Perade, QC May 15 - September 28 Louiseville, QCMay 14 - October 2 Nicolet, QCMay 11 - September 29

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