Frost Dates for Edmonton International Cs, 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 26
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 5
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 1
First Fall Frost August 28

Hard Freeze (−2°C)

Last Spring Hard Freeze May 17
First Fall Hard Freeze September 20
53.30°N, -113.60°W © OpenStreetMap

Growing Season

102 Days May 26 to September 5

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 3a

Avg. annual minimum: −40 to −35°F (−40 to −37°C)

Learn more

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

Dfb Warm-Summer Continental

Warm summers and cold, snowy winters. A shorter growing season than hot-summer continental. Hardy vegetables, root crops, and cool-season greens do well. Season extension is valuable.

Köppen climate map

Temperature

-20° -5° 10° 25°
-11°
High: -5°C
Avg: -11°C
Low: -17°C
Jan
-11°
High: -4°C
Avg: -11°C
Low: -17°C
Feb
-6°
High: 0°C
Avg: -6°C
Low: -12°C
Mar
3°
High: 10°C
Avg: 3°C
Low: -4°C
Apr
10°
High: 18°C
Avg: 10°C
Low: 2°C
May
14°
High: 21°C
Avg: 14°C
Low: 7°C
Jun
16°
High: 23°C
Avg: 16°C
Low: 9°C
Jul
15°
High: 22°C
Avg: 15°C
Low: 7°C
Aug
10°
High: 18°C
Avg: 10°C
Low: 2°C
Sep
3°
High: 10°C
Avg: 3°C
Low: -4°C
Oct
-5°
High: 1°C
Avg: -5°C
Low: -11°C
Nov
-11°
High: -5°C
Avg: -11°C
Low: -17°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
3 mm
2.5 mm
Jan
0 mm
0.0 mm
Feb
0 mm
0.0 mm
Mar
13 mm
12.7 mm
Apr
28 mm
27.9 mm
May
58 mm
58.4 mm
Jun
94 mm
94.0 mm
Jul
38 mm
38.1 mm
Aug
25 mm
25.4 mm
Sep
3 mm
2.5 mm
Oct
3 mm
2.5 mm
Nov
0 mm
0.0 mm
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8h9.5h11.5h13.5h15.5h16.5h16.5h14.5h12.5h10.5h8.5h7.5h
Jan: 8:06 AM – 3:54 PM · 7h 48m
Feb: 7:14 AM – 4:46 PM · 9h 32m
Mar: 6:15 AM – 5:45 PM · 11h 30m
Apr: 5:09 AM – 6:51 PM · 13h 43m
May: 4:11 AM – 7:49 PM · 15h 37m
Jun: 3:39 AM – 8:21 PM · 16h 43m
Jul: 3:52 AM – 8:08 PM · 16h 15m
Aug: 4:43 AM – 7:17 PM · 14h 34m
Sep: 5:48 AM – 6:12 PM · 12h 24m
Oct: 6:52 AM – 5:08 PM · 10h 15m
Nov: 7:51 AM – 4:09 PM · 8h 18m
Dec: 8:21 AM – 3:39 PM · 7h 17m
Daylight Longest: 16h 45m · Shortest: 7h 15m

Nearby Stations

Edmonton Int'L A, AB May 25 - September 11 Edmonton Woodbend, AB May 30 - September 12 Calmar, ABMay 20 - September 15 University Of Alberta Metaboli, AB May 15 - September 20 Edmonton Municipal Cr10, AB May 5 - September 27 Brightview, AB May 18 - September 17

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