Frost Dates for Patrick Fogarty Catholic Secondary School, Canada

Based on data from Orillia Brain weather station, 2 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 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 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 11
First Fall Frost October 9

Hard Freeze (−2°C)

Last Spring Hard Freeze April 21
First Fall Hard Freeze October 25
44.63°N, -79.43°W © OpenStreetMap

Growing Season

163 Days May 5 to October 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 5a

Avg. annual minimum: −20 to −15°F (−29 to −26°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

-15° 0° 15° 30°
-8°
High: -4°C
Avg: -8°C
Low: -12°C
Jan
-7°
High: -2°C
Avg: -7°C
Low: -11°C
Feb
-1°
High: 3°C
Avg: -1°C
Low: -6°C
Mar
5°
High: 10°C
Avg: 5°C
Low: 0°C
Apr
13°
High: 18°C
Avg: 13°C
Low: 7°C
May
18°
High: 24°C
Avg: 18°C
Low: 13°C
Jun
21°
High: 26°C
Avg: 21°C
Low: 16°C
Jul
20°
High: 25°C
Avg: 20°C
Low: 15°C
Aug
16°
High: 21°C
Avg: 16°C
Low: 11°C
Sep
9°
High: 13°C
Avg: 9°C
Low: 5°C
Oct
3°
High: 6°C
Avg: 3°C
Low: -1°C
Nov
-4°
High: 0°C
Avg: -4°C
Low: -7°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
114 mm
114.3 mm
Jan
89 mm
88.9 mm
Feb
66 mm
66.0 mm
Mar
84 mm
83.8 mm
Apr
86 mm
86.4 mm
May
86 mm
86.4 mm
Jun
86 mm
86.4 mm
Jul
94 mm
94.0 mm
Aug
84 mm
83.8 mm
Sep
91 mm
91.4 mm
Oct
99 mm
99.1 mm
Nov
114 mm
114.3 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h11.5h13.5h14.5h15.5h15h14h12.5h10.5h9.5h8.5h
Jan: 7:30 AM – 4:30 PM · 8h 59m
Feb: 6:54 AM – 5:06 PM · 10h 12m
Mar: 6:11 AM – 5:49 PM · 11h 38m
Apr: 5:22 AM – 6:38 PM · 13h 15m
May: 4:42 AM – 7:18 PM · 14h 37m
Jun: 4:19 AM – 7:41 PM · 15h 21m
Jul: 4:28 AM – 7:32 PM · 15h 03m
Aug: 5:04 AM – 6:56 PM · 13h 52m
Sep: 5:51 AM – 6:09 PM · 12h 18m
Oct: 6:38 AM – 5:22 PM · 10h 43m
Nov: 7:20 AM – 4:40 PM · 9h 20m
Dec: 7:41 AM – 4:19 PM · 8h 39m
Daylight Longest: 15h 23m · Shortest: 8h 37m

Nearby Stations

Coldwater Warminster, ON May 8 - October 13 Lagoon City, ON April 24 - October 22 Shanty Bay, ONMay 11 - October 9 Udora, ONMay 15 - October 4 Egbert Cs, ONMay 13 - October 10 Borden Awos, ON May 24 - September 16

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