Frost Dates for Milk River, AB

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 27
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 9
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 2
First Fall Frost September 1

Hard Freeze (−2°C)

Last Spring Hard Freeze May 12
First Fall Hard Freeze September 24
49.13°N, -112.05°W © OpenStreetMap

Growing Season

105 Days May 27 to September 9

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

-15° 0° 15° 30°
-7°
High: 0°C
Avg: -7°C
Low: -13°C
Jan
-5°
High: 2°C
Avg: -5°C
Low: -12°C
Feb
-1°
High: 5°C
Avg: -1°C
Low: -8°C
Mar
5°
High: 12°C
Avg: 5°C
Low: -3°C
Apr
10°
High: 17°C
Avg: 10°C
Low: 2°C
May
14°
High: 22°C
Avg: 14°C
Low: 7°C
Jun
18°
High: 27°C
Avg: 18°C
Low: 9°C
Jul
18°
High: 27°C
Avg: 18°C
Low: 8°C
Aug
12°
High: 21°C
Avg: 12°C
Low: 4°C
Sep
5°
High: 13°C
Avg: 5°C
Low: -2°C
Oct
-1°
High: 5°C
Avg: -1°C
Low: -8°C
Nov
-7°
High: 0°C
Avg: -7°C
Low: -13°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
0 mm
0.0 mm
Feb
0 mm
0.0 mm
Mar
23 mm
22.9 mm
Apr
36 mm
35.6 mm
May
89 mm
88.9 mm
Jun
18 mm
17.8 mm
Jul
23 mm
22.9 mm
Aug
18 mm
17.8 mm
Sep
10 mm
10.2 mm
Oct
0 mm
0.0 mm
Nov
0 mm
0.0 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 59m

Nearby Stations

Sweetgrass, MT May 15 - September 25 Sunburst 8 E, MT May 17 - September 25 Goldbutte 7 N, MT Del Bonita, MT May 28 - September 16 Dunkirk 19nne, MT May 23 - September 14 Cut Bank Muni AP, MT May 24 - September 15

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