Frost Dates for Arthabaska, 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 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. September 25
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 22
First Fall Frost September 18

Hard Freeze (−2°C)

Last Spring Hard Freeze May 5
First Fall Hard Freeze October 12
46.02°N, -71.95°W © OpenStreetMap

Growing Season

132 Days May 16 to September 25

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 4b

Avg. annual minimum: −25 to −20°F (−32 to −29°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°
-11°
High: -6°C
Avg: -11°C
Low: -15°C
Jan
-9°
High: -4°C
Avg: -9°C
Low: -14°C
Feb
-3°
High: 2°C
Avg: -3°C
Low: -8°C
Mar
5°
High: 10°C
Avg: 5°C
Low: 0°C
Apr
12°
High: 18°C
Avg: 12°C
Low: 6°C
May
17°
High: 23°C
Avg: 17°C
Low: 12°C
Jun
20°
High: 25°C
Avg: 20°C
Low: 14°C
Jul
19°
High: 24°C
Avg: 19°C
Low: 13°C
Aug
14°
High: 19°C
Avg: 14°C
Low: 9°C
Sep
8°
High: 12°C
Avg: 8°C
Low: 3°C
Oct
1°
High: 5°C
Avg: 1°C
Low: -3°C
Nov
-6°
High: -2°C
Avg: -6°C
Low: -10°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
61 mm
61.0 mm
Feb
69 mm
68.6 mm
Mar
86 mm
86.4 mm
Apr
99 mm
99.1 mm
May
114 mm
114.3 mm
Jun
114 mm
114.3 mm
Jul
119 mm
119.4 mm
Aug
114 mm
114.3 mm
Sep
102 mm
101.6 mm
Oct
81 mm
81.3 mm
Nov
84 mm
83.8 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h11.5h13.5h15h15.5h15h14h12.5h10.5h9h8.5h
Jan: 7:35 AM – 4:25 PM · 8h 50m
Feb: 6:57 AM – 5:03 PM · 10h 07m
Mar: 6:12 AM – 5:48 PM · 11h 37m
Apr: 5:20 AM – 6:40 PM · 13h 19m
May: 4:37 AM – 7:23 PM · 14h 45m
Jun: 4:14 AM – 7:46 PM · 15h 32m
Jul: 4:24 AM – 7:36 PM · 15h 13m
Aug: 5:01 AM – 6:59 PM · 13h 58m
Sep: 5:51 AM – 6:09 PM · 12h 18m
Oct: 6:40 AM – 5:20 PM · 10h 39m
Nov: 7:24 AM – 4:36 PM · 9h 11m
Dec: 7:46 AM – 4:14 PM · 8h 28m
Daylight Longest: 15h 34m · Shortest: 8h 26m

Nearby Stations

Danville, QCMay 15 - October 1 St Ferdinand, QC May 20 - September 25 Lemieux, QCMay 24 - September 19 St Wenceslas, QC May 19 - September 22 Laurierville, QC May 20 - September 22 St Camille Wolfe, QC May 24 - September 13

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