Frost Dates for Chapleau A, ON

Elevation: 448 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 29
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 18

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 3
First Fall Frost September 14

Hard Freeze (−2°C)

Last Spring Hard Freeze May 13
First Fall Hard Freeze September 30
47.82°N, 83.35°W © OpenStreetMap

Growing Season

112 Days May 29 to September 18

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 3a

Avg. annual minimum: −40 to −37°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-9°-16°-22°
February-7°-13°-20°
March0°-7°-14°
April8°1°-5°
May17°10°3°
June22°15°9°
July23°17°11°
August22°16°10°
September17°12°6°
October9°5°0°
November1°-3°-7°
December-6°-11°-16°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January56
February51
March41
April69
May79
June81
July84
August79
September102
October84
November76
December56

Sunrise / Sunset

Daylight Eastern Time (ET) Longest: 15h 49m · Shortest: 8h 11m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Eastern Time (ET))
Month Sunrise Sunset Daylight
January8:25 AM5:01 PM8h 36m
February7:48 AM5:48 PM9h 59m
March7:56 AM7:31 PM11h 35m
April6:51 AM8:16 PM13h 24m
May6:01 AM8:58 PM14h 56m
June5:40 AM9:27 PM15h 47m
July5:56 AM9:22 PM15h 26m
August6:35 AM8:40 PM14h 06m
September7:18 AM7:38 PM12h 20m
October8:02 AM6:36 PM10h 34m
November7:49 AM4:48 PM8h 60m
December8:23 AM4:36 PM8h 13m

Nearby Stations

Wawa A, ONJune 1 - September 17 Sault Ste Marie Sanderson Fld, MI May 9 - October 11 Sault Ste Marie, MI May 22 - October 4 Whitefish Pt, MI May 23 - October 15 Sault Ste Marie A, ON May 28 - September 29 Rudyard 4n, MIMay 24 - October 1

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