Frost Dates for Montmagny, QC

Based on data from Cap-Tourmente weather station, 13 miles away

Elevation: 15 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 8
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 12
First Fall Frost September 28

Hard Freeze (−2°C)

Last Spring Hard Freeze April 22
First Fall Hard Freeze October 27
46.98°N, 70.55°W © OpenStreetMap

Growing Season

153 Days May 8 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-5°-10°-15°
February-4°-9°-14°
March1°-3°-8°
April9°4°-1°
May17°11°6°
June22°17°11°
July25°19°14°
August24°19°13°
September20°14°9°
October12°8°3°
November5°1°-3°
December-2°-6°-10°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January81
February66
March66
April84
May71
June89
July114
August102
September104
October124
November84
December97

Sunrise / Sunset

Daylight Eastern Time (ET) Longest: 15h 42m · Shortest: 8h 18m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Eastern Time (ET))
Month Sunrise Sunset Daylight
January7:31 AM4:13 PM8h 42m
February6:57 AM4:59 PM10h 02m
March7:05 AM6:41 PM11h 36m
April6:02 AM7:24 PM13h 22m
May5:14 AM8:05 PM14h 52m
June4:53 AM8:34 PM15h 41m
July5:08 AM8:29 PM15h 21m
August5:46 AM7:49 PM14h 02m
September6:28 AM6:47 PM12h 19m
October7:10 AM5:46 PM10h 36m
November6:56 AM4:01 PM9h 05m
December7:30 AM3:48 PM8h 19m

Nearby Stations

Chateau Richer, QC May 15 - October 10 Charlevoix (Mrc), QC June 1 - September 7 Saint Michel, QC May 11 - October 2 Lauzon, QCMay 16 - September 27 Ste-Foy (U. Laval), QC May 4 - October 8 Beausejour, QC May 19 - September 27

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