Frost Dates for Coronach, 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 24
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 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 May 29
First Fall Frost September 7

Hard Freeze (−2°C)

Last Spring Hard Freeze May 13
First Fall Hard Freeze September 22
49.12°N, -105.52°W © OpenStreetMap

Growing Season

111 Days May 24 to September 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 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: -6°C
Avg: -12°C
Low: -18°C
Jan
-10°
High: -4°C
Avg: -10°C
Low: -16°C
Feb
-3°
High: 3°C
Avg: -3°C
Low: -10°C
Mar
5°
High: 12°C
Avg: 5°C
Low: -3°C
Apr
11°
High: 18°C
Avg: 11°C
Low: 3°C
May
16°
High: 23°C
Avg: 16°C
Low: 9°C
Jun
19°
High: 27°C
Avg: 19°C
Low: 11°C
Jul
19°
High: 27°C
Avg: 19°C
Low: 10°C
Aug
13°
High: 21°C
Avg: 13°C
Low: 5°C
Sep
5°
High: 12°C
Avg: 5°C
Low: -2°C
Oct
-4°
High: 2°C
Avg: -4°C
Low: -10°C
Nov
-10°
High: -4°C
Avg: -10°C
Low: -16°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
13 mm
12.7 mm
Jan
3 mm
2.5 mm
Feb
8 mm
7.6 mm
Mar
20 mm
20.3 mm
Apr
64 mm
63.5 mm
May
86 mm
86.4 mm
Jun
61 mm
61.0 mm
Jul
43 mm
43.2 mm
Aug
15 mm
15.2 mm
Sep
23 mm
22.9 mm
Oct
8 mm
7.6 mm
Nov
5 mm
5.1 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8.5h10h11.5h13.5h15h16h15.5h14h12.5h10.5h9h8h
Jan: 7:47 AM – 4:13 PM · 8h 26m
Feb: 7:03 AM – 4:57 PM · 9h 53m
Mar: 6:13 AM – 5:47 PM · 11h 34m
Apr: 5:16 AM – 6:44 PM · 13h 28m
May: 4:27 AM – 7:33 PM · 15h 05m
Jun: 4:01 AM – 7:59 PM · 15h 59m
Jul: 4:12 AM – 7:48 PM · 15h 37m
Aug: 4:54 AM – 7:06 PM · 14h 12m
Sep: 5:50 AM – 6:10 PM · 12h 21m
Oct: 6:45 AM – 5:15 PM · 10h 30m
Nov: 7:35 AM – 4:25 PM · 8h 51m
Dec: 7:60 AM – 4:00 PM · 8h 01m
Daylight Longest: 16h 01m · Shortest: 7h 60m

Nearby Stations

Coronach Spc, SK May 26 - September 13 Scobey 4 Nw, MT May 28 - September 6 Rockglen (Aut), SK May 19 - September 23 Redstone, MTMay 28 - September 7 Opheim 10 N, MT June 1 - September 7 Bredette, MTMay 20 - September 21

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