Frost Dates for LaSalle, Canada

Based on data from Windsor A weather station, 6 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. April 16
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. November 1
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 April 21
First Fall Frost October 27

Hard Freeze (−2°C)

Last Spring Hard Freeze April 3
First Fall Hard Freeze November 16
42.24°N, -83.06°W © OpenStreetMap

Growing Season

199 Days April 16 to November 1

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 6b

Avg. annual minimum: −5 to 0°F (−21 to −18°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

Dfa Hot-Summer Continental

Hot summers and cold winters with year-round precipitation. Moderate growing season supports warm-season crops like tomatoes, peppers, and corn. Winter protection extends the harvest.

Köppen climate map

Temperature

-10° 0° 10° 20° 30°
-4°
High: 0°C
Avg: -4°C
Low: -7°C
Jan
-2°
High: 1°C
Avg: -2°C
Low: -6°C
Feb
3°
High: 7°C
Avg: 3°C
Low: -2°C
Mar
9°
High: 14°C
Avg: 9°C
Low: 4°C
Apr
15°
High: 21°C
Avg: 15°C
Low: 10°C
May
21°
High: 26°C
Avg: 21°C
Low: 16°C
Jun
23°
High: 28°C
Avg: 23°C
Low: 18°C
Jul
22°
High: 27°C
Avg: 22°C
Low: 17°C
Aug
18°
High: 23°C
Avg: 18°C
Low: 13°C
Sep
12°
High: 16°C
Avg: 12°C
Low: 7°C
Oct
5°
High: 9°C
Avg: 5°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
81 mm
81.3 mm
Jan
69 mm
68.6 mm
Feb
76 mm
76.2 mm
Mar
94 mm
94.0 mm
Apr
97 mm
96.5 mm
May
79 mm
78.7 mm
Jun
99 mm
99.1 mm
Jul
71 mm
71.1 mm
Aug
84 mm
83.8 mm
Sep
69 mm
68.6 mm
Oct
74 mm
73.7 mm
Nov
79 mm
78.7 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10.5h11.5h13h14.5h15h15h13.5h12.5h11h9.5h9h
Jan: 7:23 AM – 4:37 PM · 9h 14m
Feb: 6:50 AM – 5:10 PM · 10h 21m
Mar: 6:10 AM – 5:50 PM · 11h 39m
Apr: 5:25 AM – 6:35 PM · 13h 09m
May: 4:48 AM – 7:12 PM · 14h 24m
Jun: 4:28 AM – 7:32 PM · 15h 05m
Jul: 4:36 AM – 7:24 PM · 14h 48m
Aug: 5:08 AM – 6:52 PM · 13h 43m
Sep: 5:52 AM – 6:08 PM · 12h 16m
Oct: 6:35 AM – 5:25 PM · 10h 49m
Nov: 7:14 AM – 4:46 PM · 9h 33m
Dec: 7:32 AM – 4:28 PM · 8h 55m
Daylight Longest: 15h 06m · Shortest: 8h 54m

Nearby Stations

Windsor Riverside, Canada April 23 - October 27 Grosse Pointe Farms, MI April 29 - October 22 Detroit City AP, MI April 21 - October 31 Dearborn #2, MI April 27 - October 25 Amherstburg, Canada April 29 - October 22 Dearborn, MIMay 1 - October 15

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