Frost Dates for Coaticook, QC

Elevation: 259 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 14
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 30

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 20
First Fall Frost September 26

Hard Freeze (−2°C)

Last Spring Hard Freeze April 26
First Fall Hard Freeze October 14
45.15°N, 71.80°W © OpenStreetMap

Growing Season

139 Days May 14 to September 30

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 4b

Avg. annual minimum: −32 to −29°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°-14°
February-4°-8°-13°
March2°-3°-7°
April10°5°0°
May18°12°7°
June22°17°12°
July25°19°14°
August24°19°13°
September19°14°9°
October12°8°3°
November5°1°-2°
December-1°-5°-9°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January91
February79
March86
April89
May119
June122
July130
August117
September112
October114
November89
December99

Sunrise / Sunset

Daylight Longest: 15h 27m · Shortest: 8h 33m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:32 AM4:28 PM8h 56m
February6:55 AM5:05 PM10h 10m
March6:11 AM5:49 PM11h 37m
April5:22 AM6:38 PM13h 17m
May4:40 AM7:20 PM14h 40m
June4:17 AM7:43 PM15h 25m
July4:27 AM7:33 PM15h 07m
August5:03 AM6:57 PM13h 54m
September5:51 AM6:09 PM12h 18m
October6:39 AM5:21 PM10h 42m
November7:22 AM4:38 PM9h 17m
December7:43 AM4:17 PM8h 34m

Nearby Stations

Averill, VTMay 25 - September 22 Lennoxville, QCMay 14 - October 1 St Malo D Auckland, QC May 23 - September 24 Magog, QCMay 13 - October 1 Sawyerville Nord, QC May 19 - September 23 Newport, VTMay 14 - September 30

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