Frost Dates for Kenora 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 10
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 2
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 14
First Fall Frost September 28

Hard Freeze (−2°C)

Last Spring Hard Freeze April 30
First Fall Hard Freeze October 14
49.78°N, -94.37°W © OpenStreetMap

Growing Season

145 Days May 10 to October 2

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 4a

Avg. annual minimum: −30 to −25°F (−34 to −32°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: -12°C
Avg: -16°C
Low: -20°C
Jan
-12°
High: -7°C
Avg: -12°C
Low: -17°C
Feb
-5°
High: 0°C
Avg: -5°C
Low: -10°C
Mar
4°
High: 9°C
Avg: 4°C
Low: -1°C
Apr
11°
High: 16°C
Avg: 11°C
Low: 6°C
May
17°
High: 22°C
Avg: 17°C
Low: 12°C
Jun
20°
High: 24°C
Avg: 20°C
Low: 15°C
Jul
19°
High: 23°C
Avg: 19°C
Low: 14°C
Aug
13°
High: 17°C
Avg: 13°C
Low: 8°C
Sep
5°
High: 9°C
Avg: 5°C
Low: 2°C
Oct
-4°
High: -1°C
Avg: -4°C
Low: -7°C
Nov
-12°
High: -8°C
Avg: -12°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
8 mm
7.6 mm
Jan
10 mm
10.2 mm
Feb
18 mm
17.8 mm
Mar
38 mm
38.1 mm
Apr
107 mm
106.7 mm
May
124 mm
124.5 mm
Jun
112 mm
111.8 mm
Jul
89 mm
88.9 mm
Aug
86 mm
86.4 mm
Sep
71 mm
71.1 mm
Oct
38 mm
38.1 mm
Nov
15 mm
15.2 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h16h15.5h14h12.5h10.5h9h8h
Jan: 7:50 AM – 4:10 PM · 8h 21m
Feb: 7:05 AM – 4:55 PM · 9h 50m
Mar: 6:13 AM – 5:47 PM · 11h 33m
Apr: 5:15 AM – 6:45 PM · 13h 30m
May: 4:25 AM – 7:35 PM · 15h 10m
Jun: 3:57 AM – 8:03 PM · 16h 05m
Jul: 4:09 AM – 7:51 PM · 15h 42m
Aug: 4:53 AM – 7:07 PM · 14h 15m
Sep: 5:50 AM – 6:10 PM · 12h 21m
Oct: 6:46 AM – 5:14 PM · 10h 28m
Nov: 7:37 AM – 4:23 PM · 8h 46m
Dec: 8:03 AM – 3:57 PM · 7h 55m
Daylight Longest: 16h 07m · Shortest: 7h 53m

Nearby Stations

Rawson Lake, ONMay 16 - October 1 Indian Bay, MB May 24 - September 17 Baudette Intl AP, MN May 15 - September 26 Baudette, MNMay 14 - September 26 Warroad, MNMay 16 - September 24 Sprague, MBMay 20 - September 18

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