Frost Dates for Adstock, QC

Based on data from St Ephrem weather station, 6 miles away

Elevation: 390 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 23
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 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 29
First Fall Frost September 12

Hard Freeze (−2°C)

Last Spring Hard Freeze May 7
First Fall Hard Freeze October 4
46.05°N, -71.08°W © OpenStreetMap

Growing Season

116 Days May 23 to September 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 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: -17°C
Jan
-10°
High: -5°C
Avg: -10°C
Low: -16°C
Feb
-4°
High: 1°C
Avg: -4°C
Low: -10°C
Mar
3°
High: 9°C
Avg: 3°C
Low: -2°C
Apr
11°
High: 17°C
Avg: 11°C
Low: 5°C
May
16°
High: 23°C
Avg: 16°C
Low: 10°C
Jun
19°
High: 24°C
Avg: 19°C
Low: 13°C
Jul
18°
High: 24°C
Avg: 18°C
Low: 12°C
Aug
13°
High: 19°C
Avg: 13°C
Low: 7°C
Sep
6°
High: 11°C
Avg: 6°C
Low: 2°C
Oct
0°
High: 4°C
Avg: 0°C
Low: -4°C
Nov
-7°
High: -3°C
Avg: -7°C
Low: -11°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
69 mm
68.6 mm
Feb
71 mm
71.1 mm
Mar
89 mm
88.9 mm
Apr
91 mm
91.4 mm
May
124 mm
124.5 mm
Jun
109 mm
109.2 mm
Jul
97 mm
96.5 mm
Aug
104 mm
104.1 mm
Sep
117 mm
116.8 mm
Oct
74 mm
73.7 mm
Nov
94 mm
94.0 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h11.5h13.5h15h15.5h15h14h12.5h10.5h9h8.5h
Jan: 7:29 AM – 4:18 PM · 8h 49m
Feb: 6:55 AM – 5:02 PM · 10h 06m
Mar: 7:05 AM – 6:42 PM · 11h 37m
Apr: 6:04 AM – 7:24 PM · 13h 19m
May: 5:17 AM – 8:03 PM · 14h 45m
Jun: 4:58 AM – 8:30 PM · 15h 33m
Jul: 5:13 AM – 8:26 PM · 15h 13m
Aug: 5:49 AM – 7:47 PM · 13h 58m
Sep: 6:29 AM – 6:48 PM · 12h 18m
Oct: 7:09 AM – 5:49 PM · 10h 39m
Nov: 6:53 AM – 4:04 PM · 9h 11m
Dec: 7:26 AM – 3:53 PM · 8h 27m
Daylight Eastern Time (ET) Longest: 15h 34m · Shortest: 8h 26m

Nearby Stations

Beauceville, QC May 19 - September 24 St Georges, QC May 26 - September 20 St Pierre De Broughton, QC May 25 - September 24 Thetford Mines, QC May 14 - October 3 St Sebastien, QC May 27 - September 21 St Come De Liniere, QC June 6 - September 4

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