Frost Dates for Stewart Valley, 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. May 20
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 17
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 26
First Fall Frost September 10

Hard Freeze (−2°C)

Last Spring Hard Freeze May 7
First Fall Hard Freeze September 28
50.60°N, -107.80°W © OpenStreetMap

Growing Season

120 Days May 20 to September 17

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 3b

Avg. annual minimum: −35 to −30°F (−37 to −34°C)

Learn more

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

BSk Cold Semi-Arid (Steppe)

Cool to cold with low rainfall and wide temperature swings. Common in the western Great Plains and central Asia. Short growing seasons benefit from season extension techniques.

Köppen climate map

Temperature

-20° -5° 10° 25°
-12°
High: -7°C
Avg: -12°C
Low: -17°C
Jan
-9°
High: -4°C
Avg: -9°C
Low: -14°C
Feb
-3°
High: 3°C
Avg: -3°C
Low: -9°C
Mar
5°
High: 12°C
Avg: 5°C
Low: -2°C
Apr
11°
High: 18°C
Avg: 11°C
Low: 4°C
May
16°
High: 22°C
Avg: 16°C
Low: 9°C
Jun
19°
High: 26°C
Avg: 19°C
Low: 12°C
Jul
18°
High: 26°C
Avg: 18°C
Low: 11°C
Aug
13°
High: 20°C
Avg: 13°C
Low: 6°C
Sep
6°
High: 12°C
Avg: 6°C
Low: -1°C
Oct
-3°
High: 2°C
Avg: -3°C
Low: -8°C
Nov
-10°
High: -5°C
Avg: -10°C
Low: -15°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
10 mm
10.2 mm
Jan
0 mm
0.0 mm
Feb
5 mm
5.1 mm
Mar
13 mm
12.7 mm
Apr
46 mm
45.7 mm
May
89 mm
88.9 mm
Jun
64 mm
63.5 mm
Jul
48 mm
48.3 mm
Aug
28 mm
27.9 mm
Sep
3 mm
2.5 mm
Oct
3 mm
2.5 mm
Nov
3 mm
2.5 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8h10h11.5h13.5h15.5h16h16h14.5h12.5h10.5h8.5h8h
Jan: 7:53 AM – 4:07 PM · 8h 14m
Feb: 7:07 AM – 4:53 PM · 9h 46m
Mar: 6:14 AM – 5:46 PM · 11h 33m
Apr: 5:13 AM – 6:47 PM · 13h 33m
May: 4:22 AM – 7:38 PM · 15h 16m
Jun: 3:53 AM – 8:07 PM · 16h 13m
Jul: 4:05 AM – 7:55 PM · 15h 49m
Aug: 4:50 AM – 7:10 PM · 14h 19m
Sep: 5:49 AM – 6:11 PM · 12h 22m
Oct: 6:48 AM – 5:12 PM · 10h 25m
Nov: 7:40 AM – 4:20 PM · 8h 40m
Dec: 8:07 AM – 3:53 PM · 7h 47m
Daylight Longest: 16h 15m · Shortest: 7h 45m

Nearby Stations

Swift Current A, SK May 20 - September 19 Swift Current Cda, SK May 18 - September 21 Beechy, SKMay 25 - September 12 Lucky Lake, SK May 17 - September 20 Rock Point, SK May 16 - September 23 Bickleigh, SK May 19 - September 21

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