Frost Dates for Havre-Saint-Pierre, QC

Based on data from Ile Aux Perroquets weather station, 26 miles away

Elevation: 12 m

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 11
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 16
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 16
First Fall Frost October 7

Hard Freeze (−2°C)

Last Spring Hard Freeze April 26
First Fall Hard Freeze October 28
50.24°N, -63.60°W © OpenStreetMap

Growing Season

158 Days May 11 to October 16

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 5b

Avg. annual minimum: −15 to −10°F (−26 to −23°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

-15° -5° 5° 15°
-10°
High: -6°C
Avg: -10°C
Low: -14°C
Jan
-9°
High: -6°C
Avg: -9°C
Low: -13°C
Feb
-5°
High: -2°C
Avg: -5°C
Low: -9°C
Mar
0°
High: 3°C
Avg: 0°C
Low: -2°C
Apr
5°
High: 8°C
Avg: 5°C
Low: 2°C
May
9°
High: 13°C
Avg: 9°C
Low: 6°C
Jun
13°
High: 16°C
Avg: 13°C
Low: 9°C
Jul
13°
High: 16°C
Avg: 13°C
Low: 9°C
Aug
9°
High: 12°C
Avg: 9°C
Low: 6°C
Sep
5°
High: 8°C
Avg: 5°C
Low: 3°C
Oct
0°
High: 3°C
Avg: 0°C
Low: -2°C
Nov
-6°
High: -2°C
Avg: -6°C
Low: -9°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h16h16h14.5h12.5h10.5h8.5h8h
Jan: 7:18 AM – 3:35 PM · 8h 17m
Feb: 6:37 AM – 4:25 PM · 9h 48m
Mar: 6:40 AM – 6:13 PM · 11h 33m
Apr: 5:31 AM – 7:03 PM · 13h 32m
May: 4:37 AM – 7:50 PM · 15h 13m
Jun: 4:12 AM – 8:22 PM · 16h 09m
Jul: 4:29 AM – 8:15 PM · 15h 46m
Aug: 5:12 AM – 7:30 PM · 14h 17m
Sep: 6:01 AM – 6:22 PM · 12h 21m
Oct: 6:49 AM – 5:15 PM · 10h 26m
Nov: 6:41 AM – 3:23 PM · 8h 43m
Dec: 7:17 AM – 3:08 PM · 7h 50m
Daylight Eastern Time (ET) Longest: 16h 11m · Shortest: 7h 49m

Nearby Stations

Riviere Au Tonnerre, QC June 3 - September 18 Port-Menier, QC May 22 - September 29 Cap-Madeleine, QC May 6 - October 14 Lac Eon, QCJune 7 - September 15

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