Frost Dates for West Hill, ON

Based on data from Toronto Buttonville A weather station, 12 miles away

Elevation: 121 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. May 4
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 12

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 9
First Fall Frost October 6

Hard Freeze (−2°C)

Last Spring Hard Freeze April 17
First Fall Hard Freeze October 25
43.77°N, 79.18°W © OpenStreetMap

Growing Season

161 Days May 4 to October 12

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 5b

Avg. annual minimum: −26 to −23°C

Learn more

Köppen Climate

The 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

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-2°-6°-10°
February-1°-5°-10°
March5°0°-5°
April12°7°1°
May19°13°7°
June25°19°13°
July27°21°15°
August26°20°15°
September22°16°10°
October14°9°4°
November7°3°-1°
December1°-2°-6°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January76
February61
March56
April79
May74
June84
July86
August71
September84
October71
November76
December71

Sunrise / Sunset

Daylight Eastern Time (ET) Longest: 15h 17m · Shortest: 8h 43m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Eastern Time (ET))
Month Sunrise Sunset Daylight
January7:55 AM4:59 PM9h 04m
February7:25 AM5:40 PM10h 15m
March7:38 AM7:16 PM11h 38m
April6:41 AM7:54 PM13h 13m
May5:57 AM8:30 PM14h 33m
June5:40 AM8:56 PM15h 16m
July5:54 AM8:52 PM14h 58m
August6:27 AM8:16 PM13h 49m
September7:03 AM7:20 PM12h 17m
October7:40 AM6:25 PM10h 45m
November7:21 AM4:45 PM9h 24m
December7:51 AM4:35 PM8h 44m

Nearby Stations

Richmond Hill, ON May 1 - October 12 Toronto North York, ON May 5 - October 12 Toronto Lester B. Pearson Int', ON April 26 - October 19 Oshawa Wpcp, ONMay 2 - October 17 Udora, ONMay 15 - October 4 Georgetown Wwtp, ON May 19 - October 1

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