Frost Dates for Saint-Prime, Canada

Based on data from St Prime weather station, 4 miles away

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 25
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 15
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 30
First Fall Frost September 9

Hard Freeze (−2°C)

Last Spring Hard Freeze May 13
First Fall Hard Freeze October 2
48.59°N, -72.34°W © OpenStreetMap

Growing Season

113 Days May 25 to September 15

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 3a

Avg. annual minimum: −40 to −35°F (−40 to −37°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

-25° -10° 5° 20°
-17°
High: -11°C
Avg: -17°C
Low: -23°C
Jan
-15°
High: -8°C
Avg: -15°C
Low: -21°C
Feb
-7°
High: -1°C
Avg: -7°C
Low: -14°C
Mar
2°
High: 7°C
Avg: 2°C
Low: -4°C
Apr
10°
High: 17°C
Avg: 10°C
Low: 4°C
May
16°
High: 23°C
Avg: 16°C
Low: 10°C
Jun
19°
High: 25°C
Avg: 19°C
Low: 13°C
Jul
17°
High: 24°C
Avg: 17°C
Low: 11°C
Aug
13°
High: 18°C
Avg: 13°C
Low: 7°C
Sep
6°
High: 10°C
Avg: 6°C
Low: 1°C
Oct
-1°
High: 3°C
Avg: -1°C
Low: -5°C
Nov
-10°
High: -5°C
Avg: -10°C
Low: -15°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
66 mm
66.0 mm
Jan
51 mm
50.8 mm
Feb
53 mm
53.3 mm
Mar
58 mm
58.4 mm
Apr
66 mm
66.0 mm
May
84 mm
83.8 mm
Jun
114 mm
114.3 mm
Jul
94 mm
94.0 mm
Aug
86 mm
86.4 mm
Sep
76 mm
76.2 mm
Oct
64 mm
63.5 mm
Nov
71 mm
71.1 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h16h15.5h14h12.5h10.5h9h8h
Jan: 7:45 AM – 4:15 PM · 8h 30m
Feb: 7:02 AM – 4:58 PM · 9h 56m
Mar: 6:13 AM – 5:47 PM · 11h 34m
Apr: 5:17 AM – 6:43 PM · 13h 27m
May: 4:29 AM – 7:31 PM · 15h 02m
Jun: 4:03 AM – 7:57 PM · 15h 54m
Jul: 4:14 AM – 7:46 PM · 15h 33m
Aug: 4:55 AM – 7:05 PM · 14h 09m
Sep: 5:50 AM – 6:10 PM · 12h 20m
Oct: 6:44 AM – 5:16 PM · 10h 31m
Nov: 7:33 AM – 4:27 PM · 8h 54m
Dec: 7:57 AM – 4:03 PM · 8h 05m
Daylight Longest: 15h 56m · Shortest: 8h 04m

Nearby Stations

Roberval A, QCMay 19 - October 2 Normandin, QC May 26 - September 14 Lac Bouchette, QC June 4 - September 11 Mistook, QCMay 17 - September 28 Lac Ste Croix, QC May 22 - September 23 St Ambroise, QC June 8 - September 7

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