Frost Dates for High Falls, 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 9
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 11
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 13
First Fall Frost October 7

Hard Freeze (−2°C)

Last Spring Hard Freeze April 27
First Fall Hard Freeze October 22
45.83°N, -75.65°W © OpenStreetMap

Growing Season

155 Days May 9 to October 11

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: -16°C
Jan
-10°
High: -4°C
Avg: -10°C
Low: -15°C
Feb
-4°
High: 2°C
Avg: -4°C
Low: -9°C
Mar
4°
High: 10°C
Avg: 4°C
Low: -1°C
Apr
12°
High: 18°C
Avg: 12°C
Low: 6°C
May
17°
High: 23°C
Avg: 17°C
Low: 11°C
Jun
20°
High: 26°C
Avg: 20°C
Low: 14°C
Jul
19°
High: 24°C
Avg: 19°C
Low: 13°C
Aug
15°
High: 20°C
Avg: 15°C
Low: 9°C
Sep
7°
High: 12°C
Avg: 7°C
Low: 3°C
Oct
1°
High: 4°C
Avg: 1°C
Low: -3°C
Nov
-7°
High: -3°C
Avg: -7°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
81 mm
81.3 mm
Jan
61 mm
61.0 mm
Feb
71 mm
71.1 mm
Mar
74 mm
73.7 mm
Apr
74 mm
73.7 mm
May
94 mm
94.0 mm
Jun
102 mm
101.6 mm
Jul
94 mm
94.0 mm
Aug
94 mm
94.0 mm
Sep
94 mm
94.0 mm
Oct
81 mm
81.3 mm
Nov
99 mm
99.1 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h11.5h13.5h14.5h15.5h15h14h12.5h10.5h9h8.5h
Jan: 7:35 AM – 4:25 PM · 8h 51m
Feb: 6:56 AM – 5:04 PM · 10h 07m
Mar: 6:12 AM – 5:48 PM · 11h 37m
Apr: 5:21 AM – 6:39 PM · 13h 19m
May: 4:38 AM – 7:22 PM · 14h 44m
Jun: 4:15 AM – 7:45 PM · 15h 31m
Jul: 4:24 AM – 7:36 PM · 15h 12m
Aug: 5:01 AM – 6:59 PM · 13h 57m
Sep: 5:51 AM – 6:09 PM · 12h 18m
Oct: 6:40 AM – 5:20 PM · 10h 40m
Nov: 7:24 AM – 4:36 PM · 9h 12m
Dec: 7:45 AM – 4:15 PM · 8h 29m
Daylight Longest: 15h 32m · Shortest: 8h 28m

Nearby Stations

Angers, QCMay 24 - September 22 Chelsea, QCMay 8 - October 4 Wright, QCMay 23 - September 22 Cheneville, QC May 25 - September 17 Luskville, QC May 18 - September 22 Ottawa Cda, ON April 30 - October 9

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