Frost Dates for Chapleau A, ON

Frost Dates

Last Spring Frost (50%) iA 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%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. September 18
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly 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 iHardiness 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 −35°F (−40 to −37°C)

Learn more

Köppen Climate iThe 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

-25° -10° 5° 20°
-16°
High: -9°C
Avg: -16°C
Low: -22°C
Jan
-13°
High: -7°C
Avg: -13°C
Low: -20°C
Feb
-7°
High: 0°C
Avg: -7°C
Low: -14°C
Mar
1°
High: 8°C
Avg: 1°C
Low: -5°C
Apr
10°
High: 17°C
Avg: 10°C
Low: 3°C
May
15°
High: 22°C
Avg: 15°C
Low: 9°C
Jun
17°
High: 23°C
Avg: 17°C
Low: 11°C
Jul
16°
High: 22°C
Avg: 16°C
Low: 10°C
Aug
12°
High: 17°C
Avg: 12°C
Low: 6°C
Sep
5°
High: 9°C
Avg: 5°C
Low: 0°C
Oct
-3°
High: 1°C
Avg: -3°C
Low: -7°C
Nov
-11°
High: -6°C
Avg: -11°C
Low: -16°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 50 mm 100 mm
56 mm
55.9 mm
Jan
51 mm
50.8 mm
Feb
41 mm
40.6 mm
Mar
69 mm
68.6 mm
Apr
79 mm
78.7 mm
May
81 mm
81.3 mm
Jun
84 mm
83.8 mm
Jul
79 mm
78.7 mm
Aug
102 mm
101.6 mm
Sep
84 mm
83.8 mm
Oct
76 mm
76.2 mm
Nov
56 mm
55.9 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h16h15.5h14h12.5h10.5h9h8h
Jan: 7:42 AM – 4:18 PM · 8h 36m
Feb: 7:00 AM – 4:60 PM · 9h 59m
Mar: 6:12 AM – 5:48 PM · 11h 35m
Apr: 5:18 AM – 6:42 PM · 13h 24m
May: 4:32 AM – 7:28 PM · 14h 56m
Jun: 4:06 AM – 7:54 PM · 15h 47m
Jul: 4:17 AM – 7:43 PM · 15h 26m
Aug: 4:57 AM – 7:03 PM · 14h 06m
Sep: 5:50 AM – 6:10 PM · 12h 20m
Oct: 6:43 AM – 5:17 PM · 10h 34m
Nov: 7:30 AM – 4:30 PM · 8h 60m
Dec: 7:54 AM – 4:06 PM · 8h 13m
Daylight Longest: 15h 49m · Shortest: 8h 11m

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

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