Frost Dates for Rapide Des Joachims, 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. October 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 May 20
First Fall Frost September 27

Hard Freeze (−2°C)

Last Spring Hard Freeze April 29
First Fall Hard Freeze October 17
46.20°N, -77.70°W © OpenStreetMap

Growing Season

138 Days May 16 to October 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 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: -7°C
Avg: -12°C
Low: -18°C
Jan
-11°
High: -4°C
Avg: -11°C
Low: -17°C
Feb
-3°
High: 3°C
Avg: -3°C
Low: -10°C
Mar
5°
High: 11°C
Avg: 5°C
Low: -1°C
Apr
12°
High: 19°C
Avg: 12°C
Low: 5°C
May
18°
High: 24°C
Avg: 18°C
Low: 11°C
Jun
20°
High: 26°C
Avg: 20°C
Low: 13°C
Jul
19°
High: 26°C
Avg: 19°C
Low: 13°C
Aug
14°
High: 20°C
Avg: 14°C
Low: 9°C
Sep
7°
High: 12°C
Avg: 7°C
Low: 3°C
Oct
0°
High: 4°C
Avg: 0°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 30 mm 60 mm 90 mm
61 mm
61.0 mm
Jan
53 mm
53.3 mm
Feb
41 mm
40.6 mm
Mar
56 mm
55.9 mm
Apr
94 mm
94.0 mm
May
84 mm
83.8 mm
Jun
84 mm
83.8 mm
Jul
84 mm
83.8 mm
Aug
94 mm
94.0 mm
Sep
86 mm
86.4 mm
Oct
86 mm
86.4 mm
Nov
58 mm
58.4 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h11.5h13.5h15h15.5h15h14h12.5h10.5h9h8.5h
Jan: 7:36 AM – 4:24 PM · 8h 48m
Feb: 6:57 AM – 5:03 PM · 10h 06m
Mar: 6:12 AM – 5:48 PM · 11h 36m
Apr: 5:20 AM – 6:40 PM · 13h 20m
May: 4:37 AM – 7:23 PM · 14h 46m
Jun: 4:13 AM – 7:47 PM · 15h 34m
Jul: 4:23 AM – 7:37 PM · 15h 14m
Aug: 5:01 AM – 6:59 PM · 13h 59m
Sep: 5:51 AM – 6:09 PM · 12h 19m
Oct: 6:41 AM – 5:19 PM · 10h 39m
Nov: 7:25 AM – 4:35 PM · 9h 10m
Dec: 7:47 AM – 4:13 PM · 8h 26m
Daylight Longest: 15h 35m · Shortest: 8h 25m

Nearby Stations

Chalk River Aecl, ON May 14 - October 5 Sheenboro, QC May 26 - September 24 Petawawa Hoffman, ON May 13 - October 1 Charteris, QC May 22 - September 19 Shawville, QC May 18 - September 27 Bancroft Auto, ON May 29 - September 15

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