Frost Dates for Island Lake A, MB

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 24
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 29
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 24

Hard Freeze (−2°C)

Last Spring Hard Freeze May 17
First Fall Hard Freeze October 9
53.85°N, -94.65°W © OpenStreetMap

Growing Season

128 Days May 24 to September 29

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

-30° -15° 0° 15°
-22°
High: -17°C
Avg: -22°C
Low: -26°C
Jan
-19°
High: -12°C
Avg: -19°C
Low: -25°C
Feb
-11°
High: -4°C
Avg: -11°C
Low: -18°C
Mar
-1°
High: 6°C
Avg: -1°C
Low: -7°C
Apr
7°
High: 13°C
Avg: 7°C
Low: 1°C
May
15°
High: 20°C
Avg: 15°C
Low: 9°C
Jun
18°
High: 23°C
Avg: 18°C
Low: 13°C
Jul
17°
High: 22°C
Avg: 17°C
Low: 12°C
Aug
11°
High: 15°C
Avg: 11°C
Low: 7°C
Sep
3°
High: 6°C
Avg: 3°C
Low: 0°C
Oct
-7°
High: -4°C
Avg: -7°C
Low: -11°C
Nov
-17°
High: -13°C
Avg: -17°C
Low: -22°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 30 mm 60 mm 90 mm
8 mm
7.6 mm
Jan
5 mm
5.1 mm
Feb
10 mm
10.2 mm
Mar
10 mm
10.2 mm
Apr
53 mm
53.3 mm
May
71 mm
71.1 mm
Jun
99 mm
99.1 mm
Jul
84 mm
83.8 mm
Aug
61 mm
61.0 mm
Sep
56 mm
55.9 mm
Oct
23 mm
22.9 mm
Nov
13 mm
12.7 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec7.5h9.5h11.5h13.5h15.5h17h16.5h14.5h12.5h10h8h7h
Jan: 8:09 AM – 3:51 PM · 7h 42m
Feb: 7:15 AM – 4:45 PM · 9h 29m
Mar: 6:15 AM – 5:45 PM · 11h 29m
Apr: 5:08 AM – 6:52 PM · 13h 45m
May: 4:09 AM – 7:51 PM · 15h 42m
Jun: 3:35 AM – 8:25 PM · 16h 49m
Jul: 3:49 AM – 8:11 PM · 16h 21m
Aug: 4:42 AM – 7:18 PM · 14h 37m
Sep: 5:48 AM – 6:12 PM · 12h 24m
Oct: 6:54 AM – 5:06 PM · 10h 13m
Nov: 7:54 AM – 4:06 PM · 8h 13m
Dec: 8:25 AM – 3:35 PM · 7h 10m
Daylight Longest: 16h 51m · Shortest: 7h 09m

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