Frost Dates for Deline Cs, NT

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 13
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. August 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 June 18
First Fall Frost August 1

Hard Freeze (−2°C)

Last Spring Hard Freeze June 4
First Fall Hard Freeze September 7
65.22°N, -123.43°W © OpenStreetMap

Growing Season

60 Days June 13 to August 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 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°
-24°
High: -20°C
Avg: -24°C
Low: -28°C
Jan
-23°
High: -18°C
Avg: -23°C
Low: -28°C
Feb
-19°
High: -13°C
Avg: -19°C
Low: -25°C
Mar
-8°
High: -2°C
Avg: -8°C
Low: -14°C
Apr
3°
High: 8°C
Avg: 3°C
Low: -2°C
May
10°
High: 17°C
Avg: 10°C
Low: 4°C
Jun
13°
High: 19°C
Avg: 13°C
Low: 7°C
Jul
11°
High: 16°C
Avg: 11°C
Low: 6°C
Aug
5°
High: 10°C
Avg: 5°C
Low: 1°C
Sep
-3°
High: 0°C
Avg: -3°C
Low: -7°C
Oct
-16°
High: -12°C
Avg: -16°C
Low: -20°C
Nov
-22°
High: -18°C
Avg: -22°C
Low: -26°C
Dec
0°C
−2°C
Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Precipitation

0 mm 20 mm 40 mm 60 mm
18 mm
17.8 mm
Jan
8 mm
7.6 mm
Feb
0 mm
0.0 mm
Mar
5 mm
5.1 mm
Apr
10 mm
10.2 mm
May
18 mm
17.8 mm
Jun
23 mm
22.9 mm
Jul
58 mm
58.4 mm
Aug
33 mm
33.0 mm
Sep
8 mm
7.6 mm
Oct
8 mm
7.6 mm
Nov
5 mm
5.1 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec4.5h8h11h15h18.5h21h20h16.5h12.5h9h5.5h3h
Jan: 9:50 AM – 2:10 PM · 4h 20m
Feb: 8:03 AM – 3:57 PM · 7h 54m
Mar: 6:24 AM – 5:36 PM · 11h 11m
Apr: 4:36 AM – 7:24 PM · 14h 48m
May: 2:50 AM – 9:10 PM · 18h 20m
Jun: 1:24 AM – 10:36 PM · 21h 12m
Jul: 2:05 AM – 9:55 PM · 19h 49m
Aug: 3:52 AM – 8:08 PM · 16h 17m
Sep: 5:41 AM – 6:19 PM · 12h 38m
Oct: 7:26 AM – 4:34 PM · 9h 08m
Nov: 9:15 AM – 2:45 PM · 5h 30m
Dec: 10:36 AM – 1:24 PM · 2h 47m
Daylight Longest: 21h 20m · Shortest: 2h 41m

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