Frost Dates for Peterborough, ON

Based on data from Peterborough Trent U weather station, 5 miles away

Elevation: 188 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 10
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 2

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 14
First Fall Frost September 27

Hard Freeze (−2°C)

Last Spring Hard Freeze April 24
First Fall Hard Freeze October 14
44.30°N, 78.32°W © OpenStreetMap

Growing Season

145 Days May 10 to October 2

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.
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-4°-8°-13°
February-1°-6°-11°
March4°-1°-6°
April11°6°1°
May19°13°7°
June24°18°12°
July27°21°15°
August26°20°13°
September21°15°9°
October14°9°4°
November6°2°-1°
December0°-4°-8°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January58
February38
March51
April64
May91
June86
July74
August76
September94
October74
November76
December51

Sunrise / Sunset

Daylight Eastern Time (ET) Longest: 15h 21m · Shortest: 8h 39m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Eastern Time (ET))
Month Sunrise Sunset Daylight
January7:52 AM4:53 PM9h 01m
February7:21 AM5:34 PM10h 13m
March7:34 AM7:12 PM11h 38m
April6:36 AM7:51 PM13h 15m
May5:52 AM8:27 PM14h 36m
June5:34 AM8:53 PM15h 19m
July5:48 AM8:50 PM15h 01m
August6:22 AM8:13 PM13h 51m
September6:59 AM7:16 PM12h 17m
October7:36 AM6:20 PM10h 44m
November7:18 AM4:39 PM9h 21m
December7:49 AM4:29 PM8h 40m

Nearby Stations

Cobourg Stp, ONMay 4 - October 13 Cobourg (Aut), ON April 27 - October 21 Wooler, ONMay 6 - September 30 Trenton A, ONMay 2 - October 10 Udora, ONMay 15 - October 4 Oshawa Wpcp, ONMay 2 - October 17

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