Frost Dates for St Charles De Mandeville, QC

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 19
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 26
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 23
First Fall Frost September 21

Hard Freeze (−2°C)

Last Spring Hard Freeze May 8
First Fall Hard Freeze October 11
46.35°N, -73.35°W © OpenStreetMap

Growing Season

130 Days May 19 to September 26

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

-20° -5° 10° 25°
-12°
High: -6°C
Avg: -12°C
Low: -18°C
Jan
-10°
High: -4°C
Avg: -10°C
Low: -17°C
Feb
-4°
High: 2°C
Avg: -4°C
Low: -10°C
Mar
4°
High: 10°C
Avg: 4°C
Low: -2°C
Apr
12°
High: 19°C
Avg: 12°C
Low: 5°C
May
17°
High: 24°C
Avg: 17°C
Low: 11°C
Jun
20°
High: 26°C
Avg: 20°C
Low: 14°C
Jul
19°
High: 25°C
Avg: 19°C
Low: 13°C
Aug
14°
High: 20°C
Avg: 14°C
Low: 8°C
Sep
7°
High: 12°C
Avg: 7°C
Low: 2°C
Oct
1°
High: 5°C
Avg: 1°C
Low: -4°C
Nov
-7°
High: -3°C
Avg: -7°C
Low: -12°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
74 mm
73.7 mm
Jan
53 mm
53.3 mm
Feb
61 mm
61.0 mm
Mar
86 mm
86.4 mm
Apr
91 mm
91.4 mm
May
112 mm
111.8 mm
Jun
117 mm
116.8 mm
Jul
107 mm
106.7 mm
Aug
114 mm
114.3 mm
Sep
109 mm
109.2 mm
Oct
84 mm
83.8 mm
Nov
107 mm
106.7 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h11.5h13.5h15h15.5h15.5h14h12.5h10.5h9h8.5h
Jan: 7:36 AM – 4:24 PM · 8h 47m
Feb: 6:57 AM – 5:03 PM · 10h 05m
Mar: 6:12 AM – 5:48 PM · 11h 36m
Apr: 5:20 AM – 6:40 PM · 13h 20m
May: 4:36 AM – 7:24 PM · 14h 47m
Jun: 4:13 AM – 7:47 PM · 15h 35m
Jul: 4:22 AM – 7:38 PM · 15h 15m
Aug: 5:00 AM – 6:60 PM · 13h 59m
Sep: 5:51 AM – 6:09 PM · 12h 19m
Oct: 6:41 AM – 5:19 PM · 10h 38m
Nov: 7:25 AM – 4:35 PM · 9h 09m
Dec: 7:48 AM – 4:12 PM · 8h 25m
Daylight Longest: 15h 36m · Shortest: 8h 24m

Nearby Stations

Ste Beatrix, QC May 23 - September 17 Louiseville, QCMay 14 - October 2 St Come, QCJune 6 - September 6 Joliette Ville, QC May 8 - October 3 Sorel, QCApril 28 - October 12 St Jacques, QCMay 12 - October 3

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