Frost Dates for Sault Ste Marie, MI

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 22
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. October 4
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 May 28
First Fall Frost September 30

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze May 7
First Fall Hard Freeze October 17
46.49°N, -84.41°W © OpenStreetMap

Growing Season

135 Days May 22 to October 4

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 4b

Learn more

Temperature

0° 20° 40° 60° 80°
13°
High: 23°
Avg: 13°
Low: 4°
Jan
14°
High: 25°
Avg: 14°
Low: 4°
Feb
24°
High: 35°
Avg: 24°
Low: 13°
Mar
37°
High: 47°
Avg: 37°
Low: 27°
Apr
51°
High: 62°
Avg: 51°
Low: 39°
May
60°
High: 72°
Avg: 60°
Low: 49°
Jun
65°
High: 76°
Avg: 65°
Low: 54°
Jul
64°
High: 75°
Avg: 64°
Low: 54°
Aug
57°
High: 68°
Avg: 57°
Low: 47°
Sep
45°
High: 53°
Avg: 45°
Low: 36°
Oct
33°
High: 40°
Avg: 33°
Low: 27°
Nov
22°
High: 29°
Avg: 22°
Low: 15°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 4.2"
2.1"
2.12"
Jan
1.8"
1.82"
Feb
2.5"
2.53"
Mar
3.5"
3.48"
Apr
4.0"
4.03"
May
3.3"
3.34"
Jun
3.5"
3.48"
Jul
3.8"
3.84"
Aug
4.2"
4.20"
Sep
3.9"
3.87"
Oct
3.1"
3.11"
Nov
2.7"
2.67"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h15h16h15h14h12h11h9h8h
Jan: 7:37 AM – 4:23 PM · 8h 46m
Feb: 6:58 AM – 5:02 PM · 10h 05m
Mar: 6:12 AM – 5:48 PM · 11h 36m
Apr: 5:20 AM – 6:40 PM · 13h 20m
May: 4:36 AM – 7:24 PM · 14h 48m
Jun: 4:12 AM – 7:48 PM · 15h 36m
Jul: 4:22 AM – 7:38 PM · 15h 16m
Aug: 5:00 AM – 6:60 PM · 13h 60m
Sep: 5:51 AM – 6:09 PM · 12h 19m
Oct: 6:41 AM – 5:19 PM · 10h 38m
Nov: 7:26 AM – 4:34 PM · 9h 08m
Dec: 7:48 AM – 4:12 PM · 8h 24m
Daylight Longest: 15h 37m · Shortest: 8h 23m

Nearby Stations

Sault Ste Marie Sanderson Fld, MI May 9 - October 11 Sault Ste Marie A, Canada May 28 - September 29 Rudyard 4n, MIMay 24 - October 1 Rudyard 5se, MI June 1 - September 21 Pickford 3ne, MI May 31 - September 25 Paradise, MIMay 31 - October 1

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