Frost Dates for Sainte-Martine, QC

Based on data from Ste Martine weather station, 3 miles away

Elevation: 33 m

Frost Dates

Last Spring Frost (50%) A 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. April 30
First Fall Frost (50%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. October 6

30% Probability

Only 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 5
First Fall Frost September 30

Hard Freeze (−2°C)

Last Spring Hard Freeze April 15
First Fall Hard Freeze October 18
45.25°N, 73.80°W © OpenStreetMap

Growing Season

159 Days April 30 to October 6

USDA Hardiness Zone

Hardiness 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 5a

Avg. annual minimum: −29 to −26°C

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dfa Hot-Summer Continental

Hot summers and cold winters with year-round precipitation. Moderate growing season supports warm-season crops like tomatoes, peppers, and corn. Winter protection extends the harvest.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)
Temperature table
Average monthly temperatures (°C)
Month Avg High Avg Temp Avg Low
January-5°-9°-14°
February-3°-8°-13°
March3°-2°-6°
April11°6°1°
May19°14°8°
June25°19°14°
July27°21°16°
August26°20°15°
September21°16°10°
October14°9°5°
November6°2°-1°
December-1°-4°-8°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January81
February58
March56
April79
May102
June97
July97
August89
September94
October107
November81
December84

Sunrise / Sunset

Daylight Eastern Time (ET) Longest: 15h 27m · Shortest: 8h 33m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Eastern Time (ET))
Month Sunrise Sunset Daylight
January7:37 AM4:32 PM8h 55m
February7:05 AM5:15 PM10h 10m
March7:16 AM6:54 PM11h 37m
April6:17 AM7:34 PM13h 17m
May5:31 AM8:12 PM14h 40m
June5:13 AM8:39 PM15h 26m
July5:27 AM8:35 PM15h 07m
August6:02 AM7:57 PM13h 54m
September6:41 AM6:59 PM12h 18m
October7:20 AM6:01 PM10h 42m
November7:02 AM4:19 PM9h 16m
December7:34 AM4:08 PM8h 34m

Nearby Stations

Ste-Clothilde, QC May 9 - October 1 Les Cedres, QCMay 2 - October 10 Ormstown, QCMay 6 - October 6 Hemmingford Four Winds, QC May 15 - September 27 Valleyfield, QC April 29 - October 9 Ste-Anne-De-Bellevue 1, QC April 26 - October 16

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