Frost Dates for St Ephrem, QC

Elevation: 312 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 23
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 16

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 29
First Fall Frost September 12

Hard Freeze (−2°C)

Last Spring Hard Freeze May 7
First Fall Hard Freeze October 4
46.07°N, 70.97°W © OpenStreetMap

Growing Season

116 Days May 23 to September 16

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-7°-12°-17°
February-5°-10°-16°
March1°-4°-10°
April9°3°-2°
May17°11°5°
June23°16°10°
July24°19°13°
August24°18°12°
September19°13°7°
October11°6°2°
November4°0°-4°
December-3°-7°-11°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January81
February69
March71
April89
May91
June124
July109
August97
September104
October117
November74
December94

Sunrise / Sunset

Daylight Eastern Time (ET) Longest: 15h 34m · Shortest: 8h 26m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Eastern Time (ET))
Month Sunrise Sunset Daylight
January7:29 AM4:18 PM8h 49m
February6:55 AM5:02 PM10h 06m
March7:05 AM6:42 PM11h 37m
April6:04 AM7:24 PM13h 19m
May5:17 AM8:03 PM14h 45m
June4:58 AM8:30 PM15h 33m
July5:13 AM8:26 PM15h 13m
August5:49 AM7:47 PM13h 58m
September6:29 AM6:48 PM12h 18m
October7:09 AM5:49 PM10h 39m
November6:53 AM4:04 PM9h 11m
December7:26 AM3:53 PM8h 27m

Nearby Stations

Beauceville, QC May 19 - September 24 St Georges, QC May 26 - September 20 St Pierre De Broughton, QC May 25 - September 24 Thetford Mines, QC May 14 - October 3 St Sebastien, QC May 27 - September 21 St Come De Liniere, QC June 6 - September 4

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!

Planter app garden planner preview