Frost Dates for Leroy, Canada

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 21
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 12
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 26
First Fall Frost September 6

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze May 12
First Fall Hard Freeze September 25
52.00°N, -104.63°W © OpenStreetMap

Growing Season

114 Days May 21 to September 12

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

Learn more

Temperature

-10° 20° 50° 80°
High: 12°
Avg: 3°
Low: -6°
Jan
High: 16°
Avg: 6°
Low: -3°
Feb
19°
High: 28°
Avg: 19°
Low: 9°
Mar
37°
High: 48°
Avg: 37°
Low: 26°
Apr
51°
High: 64°
Avg: 51°
Low: 38°
May
60°
High: 71°
Avg: 60°
Low: 49°
Jun
64°
High: 76°
Avg: 64°
Low: 53°
Jul
63°
High: 76°
Avg: 63°
Low: 50°
Aug
54°
High: 66°
Avg: 54°
Low: 41°
Sep
38°
High: 48°
Avg: 38°
Low: 28°
Oct
21°
High: 29°
Avg: 21°
Low: 13°
Nov
High: 17°
Avg: 8°
Low: 0°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 3" 3.4"
0.1"
0.10"
Jan
0.0"
0.00"
Feb
0.1"
0.10"
Mar
0.6"
0.60"
Apr
1.2"
1.20"
May
3.4"
3.40"
Jun
2.7"
2.70"
Jul
2.3"
2.30"
Aug
1.2"
1.20"
Sep
0.9"
0.90"
Oct
0.2"
0.20"
Nov
0.0"
0.00"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8h10h12h14h15h16h16h14h12h10h8h8h
Jan: 7:60 AM – 4:00 PM · 8h 01m
Feb: 7:10 AM – 4:50 PM · 9h 39m
Mar: 6:14 AM – 5:46 PM · 11h 31m
Apr: 5:11 AM – 6:49 PM · 13h 38m
May: 4:17 AM – 7:43 PM · 15h 27m
Jun: 3:46 AM – 8:14 PM · 16h 28m
Jul: 3:59 AM – 8:01 PM · 16h 02m
Aug: 4:47 AM – 7:13 PM · 14h 26m
Sep: 5:49 AM – 6:11 PM · 12h 23m
Oct: 6:50 AM – 5:10 PM · 10h 20m
Nov: 7:46 AM – 4:14 PM · 8h 29m
Dec: 8:14 AM – 3:46 PM · 7h 32m
Daylight Longest: 16h 30m · Shortest: 7h 30m

Nearby Stations

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