Frost Dates for Stony Rapids A, SK

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 8
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 31
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 13
First Fall Frost August 24

Hard Freeze (−2°C)

Last Spring Hard Freeze May 26
First Fall Hard Freeze September 20
59.25°N, -105.83°W © OpenStreetMap

Growing Season

84 Days June 8 to August 31

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 2a

Avg. annual minimum: −50 to −45°F (−46 to −43°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: -19°C
Avg: -24°C
Low: -30°C
Jan
-21°
High: -14°C
Avg: -21°C
Low: -27°C
Feb
-14°
High: -6°C
Avg: -14°C
Low: -21°C
Mar
-3°
High: 4°C
Avg: -3°C
Low: -10°C
Apr
6°
High: 12°C
Avg: 6°C
Low: -1°C
May
13°
High: 20°C
Avg: 13°C
Low: 6°C
Jun
16°
High: 23°C
Avg: 16°C
Low: 9°C
Jul
14°
High: 20°C
Avg: 14°C
Low: 8°C
Aug
8°
High: 13°C
Avg: 8°C
Low: 3°C
Sep
0°
High: 3°C
Avg: 0°C
Low: -4°C
Oct
-12°
High: -7°C
Avg: -12°C
Low: -16°C
Nov
-20°
High: -16°C
Avg: -20°C
Low: -25°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 80 mm
0 mm
0.0 mm
Jan
0 mm
0.0 mm
Feb
5 mm
5.1 mm
Mar
3 mm
2.5 mm
Apr
25 mm
25.4 mm
May
33 mm
33.0 mm
Jun
61 mm
61.0 mm
Jul
79 mm
78.7 mm
Aug
58 mm
58.4 mm
Sep
25 mm
25.4 mm
Oct
5 mm
5.1 mm
Nov
0 mm
0.0 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec6.5h9h11.5h14h16.5h18h17.5h15h12.5h10h7h6h
Jan: 8:43 AM – 3:17 PM · 6h 33m
Feb: 7:34 AM – 4:26 PM · 8h 53m
Mar: 6:19 AM – 5:41 PM · 11h 22m
Apr: 4:55 AM – 7:05 PM · 14h 09m
May: 3:40 AM – 8:20 PM · 16h 39m
Jun: 2:54 AM – 9:06 PM · 18h 11m
Jul: 3:14 AM – 8:46 PM · 17h 32m
Aug: 4:23 AM – 7:37 PM · 15h 15m
Sep: 5:45 AM – 6:15 PM · 12h 30m
Oct: 7:06 AM – 4:54 PM · 9h 48m
Nov: 8:23 AM – 3:37 PM · 7h 14m
Dec: 9:06 AM – 2:54 PM · 5h 48m
Daylight Longest: 18h 14m · Shortest: 5h 46m

Nearby Stations

Cigar Lake, SKJune 7 - August 31

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!

Planter app garden planner preview