Frost Dates for Big Trout Lake Readac, ON

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. June 14
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. September 4
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 June 18
First Fall Frost August 24

Hard Freeze (−2°C)

Last Spring Hard Freeze May 31
First Fall Hard Freeze September 26
53.82°N, -89.90°W © OpenStreetMap

Growing Season

82 Days June 14 to September 4

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 2b

Avg. annual minimum: −45 to −40°F (−43 to −40°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

Dfc Subarctic

Short, cool summers and long, very cold winters. Growing seasons of 3–4 months require fast-maturing varieties. Root vegetables, potatoes, and cold-hardy greens are the most reliable.

Köppen climate map

Temperature

-30° -15° 0° 15°
-22°
High: -17°C
Avg: -22°C
Low: -27°C
Jan
-20°
High: -13°C
Avg: -20°C
Low: -26°C
Feb
-12°
High: -5°C
Avg: -12°C
Low: -20°C
Mar
-2°
High: 5°C
Avg: -2°C
Low: -9°C
Apr
6°
High: 12°C
Avg: 6°C
Low: -1°C
May
13°
High: 19°C
Avg: 13°C
Low: 6°C
Jun
16°
High: 22°C
Avg: 16°C
Low: 10°C
Jul
15°
High: 21°C
Avg: 15°C
Low: 9°C
Aug
10°
High: 14°C
Avg: 10°C
Low: 5°C
Sep
2°
High: 6°C
Avg: 2°C
Low: -1°C
Oct
-8°
High: -4°C
Avg: -8°C
Low: -11°C
Nov
-18°
High: -14°C
Avg: -18°C
Low: -23°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
0 mm
0.0 mm
Jan
3 mm
2.5 mm
Feb
10 mm
10.2 mm
Mar
18 mm
17.8 mm
Apr
48 mm
48.3 mm
May
66 mm
66.0 mm
Jun
86 mm
86.4 mm
Jul
99 mm
99.1 mm
Aug
74 mm
73.7 mm
Sep
51 mm
50.8 mm
Oct
25 mm
25.4 mm
Nov
8 mm
7.6 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec7.5h9.5h11.5h13.5h15.5h17h16.5h14.5h12.5h10h8h7h
Jan: 8:09 AM – 3:51 PM · 7h 43m
Feb: 7:15 AM – 4:45 PM · 9h 29m
Mar: 6:15 AM – 5:45 PM · 11h 29m
Apr: 5:08 AM – 6:52 PM · 13h 45m
May: 4:09 AM – 7:51 PM · 15h 42m
Jun: 3:36 AM – 8:24 PM · 16h 49m
Jul: 3:50 AM – 8:10 PM · 16h 21m
Aug: 4:42 AM – 7:18 PM · 14h 37m
Sep: 5:48 AM – 6:12 PM · 12h 24m
Oct: 6:53 AM – 5:07 PM · 10h 13m
Nov: 7:53 AM – 4:07 PM · 8h 13m
Dec: 8:25 AM – 3:35 PM · 7h 11m
Daylight Longest: 16h 51m · Shortest: 7h 09m

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