Frost Dates for Walkerton, Canada

Based on data from Mount Forest (Aut) weather station, 22 miles away

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 15
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 9
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 20
First Fall Frost October 3

Hard Freeze (−2°C)

Last Spring Hard Freeze April 27
First Fall Hard Freeze October 24
44.13°N, -81.15°W © OpenStreetMap

Growing Season

147 Days May 15 to October 9

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 5a

Avg. annual minimum: −20 to −15°F (−29 to −26°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

-15° -5° 5° 15° 25°
-7°
High: -4°C
Avg: -7°C
Low: -11°C
Jan
-7°
High: -3°C
Avg: -7°C
Low: -11°C
Feb
-2°
High: 2°C
Avg: -2°C
Low: -7°C
Mar
5°
High: 10°C
Avg: 5°C
Low: 0°C
Apr
12°
High: 17°C
Avg: 12°C
Low: 6°C
May
17°
High: 23°C
Avg: 17°C
Low: 12°C
Jun
19°
High: 25°C
Avg: 19°C
Low: 14°C
Jul
19°
High: 24°C
Avg: 19°C
Low: 13°C
Aug
15°
High: 20°C
Avg: 15°C
Low: 9°C
Sep
8°
High: 13°C
Avg: 8°C
Low: 4°C
Oct
2°
High: 5°C
Avg: 2°C
Low: -1°C
Nov
-4°
High: -1°C
Avg: -4°C
Low: -7°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
76 mm
76.2 mm
Jan
74 mm
73.7 mm
Feb
64 mm
63.5 mm
Mar
81 mm
81.3 mm
Apr
76 mm
76.2 mm
May
94 mm
94.0 mm
Jun
84 mm
83.8 mm
Jul
84 mm
83.8 mm
Aug
79 mm
78.7 mm
Sep
76 mm
76.2 mm
Oct
81 mm
81.3 mm
Nov
74 mm
73.7 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h11.5h13h14.5h15.5h15h14h12.5h10.5h9.5h8.5h
Jan: 7:28 AM – 4:32 PM · 9h 03m
Feb: 6:53 AM – 5:07 PM · 10h 15m
Mar: 6:11 AM – 5:49 PM · 11h 38m
Apr: 5:23 AM – 6:37 PM · 13h 14m
May: 4:43 AM – 7:17 PM · 14h 33m
Jun: 4:22 AM – 7:38 PM · 15h 17m
Jul: 4:31 AM – 7:29 PM · 14h 59m
Aug: 5:05 AM – 6:55 PM · 13h 50m
Sep: 5:51 AM – 6:09 PM · 12h 17m
Oct: 6:38 AM – 5:22 PM · 10h 45m
Nov: 7:18 AM – 4:42 PM · 9h 23m
Dec: 7:38 AM – 4:22 PM · 8h 43m
Daylight Longest: 15h 18m · Shortest: 8h 42m

Nearby Stations

Glen Allan, ONMay 11 - October 7 Fergus Moe, ONMay 11 - October 8 Fergus Shand Dam, ON May 6 - October 11 Chatsworth, ON May 24 - September 26 Orangeville Moe, ON May 19 - September 26 Tara, ONMay 17 - September 30

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