Frost Dates for Bluewater, ON

Based on data from Goderich weather station, 22 miles away

Elevation: 249 m

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 9
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 21
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 October 15

Hard Freeze (−2°C)

Last Spring Hard Freeze April 21
First Fall Hard Freeze November 8
43.47°N, -81.60°W © OpenStreetMap

Growing Season

165 Days May 9 to October 21

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 6a

Avg. annual minimum: −10 to −5°F (−23 to −21°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

-10° 0° 10° 20°
-4°
High: -1°C
Avg: -4°C
Low: -8°C
Jan
-4°
High: -1°C
Avg: -4°C
Low: -8°C
Feb
0°
High: 4°C
Avg: 0°C
Low: -4°C
Mar
6°
High: 11°C
Avg: 6°C
Low: 1°C
Apr
12°
High: 17°C
Avg: 12°C
Low: 7°C
May
17°
High: 22°C
Avg: 17°C
Low: 13°C
Jun
20°
High: 24°C
Avg: 20°C
Low: 15°C
Jul
19°
High: 24°C
Avg: 19°C
Low: 14°C
Aug
16°
High: 21°C
Avg: 16°C
Low: 11°C
Sep
10°
High: 14°C
Avg: 10°C
Low: 6°C
Oct
4°
High: 8°C
Avg: 4°C
Low: 1°C
Nov
-1°
High: 2°C
Avg: -1°C
Low: -4°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
61 mm
61.0 mm
Jan
43 mm
43.2 mm
Feb
48 mm
48.3 mm
Mar
64 mm
63.5 mm
Apr
81 mm
81.3 mm
May
91 mm
91.4 mm
Jun
66 mm
66.0 mm
Jul
79 mm
78.7 mm
Aug
84 mm
83.8 mm
Sep
91 mm
91.4 mm
Oct
79 mm
78.7 mm
Nov
56 mm
55.9 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10.5h11.5h13h14.5h15.5h15h14h12.5h11h9.5h8.5h
Jan: 8:04 AM – 5:09 PM · 9h 05m
Feb: 7:34 AM – 5:49 PM · 10h 15m
Mar: 7:47 AM – 7:26 PM · 11h 38m
Apr: 6:51 AM – 8:04 PM · 13h 13m
May: 6:07 AM – 8:39 PM · 14h 32m
Jun: 5:50 AM – 9:05 PM · 15h 15m
Jul: 6:04 AM – 9:01 PM · 14h 58m
Aug: 6:37 AM – 8:25 PM · 13h 49m
Sep: 7:13 AM – 7:30 PM · 12h 17m
Oct: 7:49 AM – 6:35 PM · 10h 45m
Nov: 7:30 AM – 4:54 PM · 9h 25m
Dec: 8:00 AM – 4:45 PM · 8h 45m
Daylight Eastern Time (ET) Longest: 15h 16m · Shortest: 8h 44m

Nearby Stations

Kincardine, ONMay 13 - October 16 Thedford, ONMay 9 - October 15 Stratford Wwtp, ON May 11 - October 11 Harbor Beach 1 Sse, MI May 2 - October 24 Glen Allan, ONMay 11 - October 7 Mount Forest (Aut), ON May 15 - October 9

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