Frost Dates for Saint-Ambroise, Canada

Based on data from St Ambroise weather station, 1 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. June 8
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 7
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 June 13
First Fall Frost September 1

Hard Freeze (−2°C)

Last Spring Hard Freeze May 19
First Fall Hard Freeze September 22
48.55°N, -71.32°W © OpenStreetMap

Growing Season

91 Days June 8 to September 7

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 2b

Avg. annual minimum: −45 to −40°F (−43 to −40°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

-25° -10° 5° 20°
-17°
High: -10°C
Avg: -17°C
Low: -24°C
Jan
-15°
High: -8°C
Avg: -15°C
Low: -22°C
Feb
-7°
High: -1°C
Avg: -7°C
Low: -14°C
Mar
2°
High: 7°C
Avg: 2°C
Low: -4°C
Apr
10°
High: 17°C
Avg: 10°C
Low: 3°C
May
15°
High: 22°C
Avg: 15°C
Low: 8°C
Jun
18°
High: 24°C
Avg: 18°C
Low: 11°C
Jul
17°
High: 23°C
Avg: 17°C
Low: 10°C
Aug
12°
High: 18°C
Avg: 12°C
Low: 6°C
Sep
5°
High: 10°C
Avg: 5°C
Low: 1°C
Oct
-2°
High: 2°C
Avg: -2°C
Low: -6°C
Nov
-11°
High: -5°C
Avg: -11°C
Low: -16°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 150 mm
66 mm
66.0 mm
Jan
58 mm
58.4 mm
Feb
61 mm
61.0 mm
Mar
64 mm
63.5 mm
Apr
84 mm
83.8 mm
May
94 mm
94.0 mm
Jun
140 mm
139.7 mm
Jul
117 mm
116.8 mm
Aug
122 mm
121.9 mm
Sep
109 mm
109.2 mm
Oct
81 mm
81.3 mm
Nov
89 mm
88.9 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h16h15.5h14h12.5h10.5h9h8h
Jan: 7:45 AM – 4:15 PM · 8h 31m
Feb: 7:02 AM – 4:58 PM · 9h 56m
Mar: 6:13 AM – 5:47 PM · 11h 34m
Apr: 5:17 AM – 6:43 PM · 13h 27m
May: 4:29 AM – 7:31 PM · 15h 01m
Jun: 4:03 AM – 7:57 PM · 15h 54m
Jul: 4:14 AM – 7:46 PM · 15h 32m
Aug: 4:55 AM – 7:05 PM · 14h 09m
Sep: 5:50 AM – 6:10 PM · 12h 20m
Oct: 6:44 AM – 5:16 PM · 10h 32m
Nov: 7:33 AM – 4:27 PM · 8h 55m
Dec: 7:57 AM – 4:03 PM · 8h 06m
Daylight Longest: 15h 55m · Shortest: 8h 05m

Nearby Stations

Jonquiere, Canada May 16 - September 28 Mistook, Canada May 17 - September 28 Laterriere, Canada May 22 - September 23 Lac Ste Croix, Canada May 22 - September 23 Bagotville A, Canada May 20 - September 27 La Baie, Canada May 26 - September 17

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