Frost Dates for Junction Area, ON

Based on data from Toronto North York weather station, 8 miles away

Elevation: 118 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 5
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. October 12
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 10
First Fall Frost October 7

Hard Freeze (−2°C)

Last Spring Hard Freeze April 19
First Fall Hard Freeze October 27
43.67°N, -79.47°W © OpenStreetMap

Growing Season

160 Days May 5 to October 12

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 6a

Avg. annual minimum: −10 to −5°F (−23 to −21°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

-10° 0° 10° 20° 30°
-5°
High: -1°C
Avg: -5°C
Low: -9°C
Jan
-4°
High: 0°C
Avg: -4°C
Low: -8°C
Feb
1°
High: 5°C
Avg: 1°C
Low: -4°C
Mar
7°
High: 12°C
Avg: 7°C
Low: 1°C
Apr
14°
High: 20°C
Avg: 14°C
Low: 8°C
May
19°
High: 25°C
Avg: 19°C
Low: 13°C
Jun
22°
High: 28°C
Avg: 22°C
Low: 16°C
Jul
21°
High: 27°C
Avg: 21°C
Low: 16°C
Aug
17°
High: 23°C
Avg: 17°C
Low: 12°C
Sep
10°
High: 15°C
Avg: 10°C
Low: 5°C
Oct
4°
High: 8°C
Avg: 4°C
Low: 0°C
Nov
-1°
High: 2°C
Avg: -1°C
Low: -5°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 30 mm 60 mm 90 mm
66 mm
66.0 mm
Jan
61 mm
61.0 mm
Feb
53 mm
53.3 mm
Mar
79 mm
78.7 mm
Apr
79 mm
78.7 mm
May
97 mm
96.5 mm
Jun
86 mm
86.4 mm
Jul
79 mm
78.7 mm
Aug
81 mm
81.3 mm
Sep
79 mm
78.7 mm
Oct
76 mm
76.2 mm
Nov
74 mm
73.7 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10.5h11.5h13h14.5h15.5h15h14h12.5h11h9.5h8.5h
Jan: 7:55 AM – 4:60 PM · 9h 05m
Feb: 7:25 AM – 5:40 PM · 10h 15m
Mar: 7:38 AM – 7:17 PM · 11h 38m
Apr: 6:42 AM – 7:55 PM · 13h 13m
May: 5:58 AM – 8:30 PM · 14h 32m
Jun: 5:40 AM – 8:56 PM · 15h 15m
Jul: 5:55 AM – 8:52 PM · 14h 58m
Aug: 6:28 AM – 8:16 PM · 13h 49m
Sep: 7:04 AM – 7:21 PM · 12h 17m
Oct: 7:40 AM – 6:26 PM · 10h 45m
Nov: 7:21 AM – 4:45 PM · 9h 25m
Dec: 7:51 AM – 4:36 PM · 8h 45m
Daylight Eastern Time (ET) Longest: 15h 17m · Shortest: 8h 44m

Nearby Stations

Richmond Hill, ON May 1 - October 12 Toronto Buttonville A, ON May 4 - October 12 Toronto Lester B. Pearson Int', ON April 26 - October 19 Georgetown Wwtp, ON May 19 - October 1 Orangeville Moe, ON May 19 - September 26 Oshawa Wpcp, ONMay 2 - October 17

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