Frost Dates for Okotoks, Canada

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 23
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 13
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 28
First Fall Frost September 8

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze May 6
First Fall Hard Freeze September 27
50.73°N, -113.97°W © OpenStreetMap

Growing Season

113 Days May 23 to September 13

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 4a

Learn more

Temperature

0° 20° 40° 60° 80°
19°
High: 29°
Avg: 19°
Low: 9°
Jan
21°
High: 32°
Avg: 21°
Low: 11°
Feb
29°
High: 41°
Avg: 29°
Low: 18°
Mar
41°
High: 53°
Avg: 41°
Low: 28°
Apr
50°
High: 63°
Avg: 50°
Low: 37°
May
57°
High: 70°
Avg: 57°
Low: 45°
Jun
63°
High: 77°
Avg: 63°
Low: 50°
Jul
62°
High: 76°
Avg: 62°
Low: 48°
Aug
53°
High: 66°
Avg: 53°
Low: 40°
Sep
41°
High: 53°
Avg: 41°
Low: 29°
Oct
28°
High: 38°
Avg: 28°
Low: 18°
Nov
20°
High: 30°
Avg: 20°
Low: 10°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 4.6"
0.1"
0.10"
Jan
0.0"
0.00"
Feb
0.4"
0.40"
Mar
1.6"
1.60"
Apr
3.1"
3.10"
May
4.6"
4.60"
Jun
2.2"
2.20"
Jul
2.0"
2.00"
Aug
1.9"
1.90"
Sep
0.4"
0.40"
Oct
0.3"
0.30"
Nov
0.1"
0.10"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8h10h12h14h15h16h16h14h12h10h9h8h
Jan: 7:54 AM – 4:06 PM · 8h 13m
Feb: 7:07 AM – 4:53 PM · 9h 46m
Mar: 6:14 AM – 5:46 PM · 11h 32m
Apr: 5:13 AM – 6:47 PM · 13h 34m
May: 4:22 AM – 7:38 PM · 15h 17m
Jun: 3:53 AM – 8:07 PM · 16h 15m
Jul: 4:05 AM – 7:55 PM · 15h 51m
Aug: 4:50 AM – 7:10 PM · 14h 20m
Sep: 5:49 AM – 6:11 PM · 12h 22m
Oct: 6:48 AM – 5:12 PM · 10h 24m
Nov: 7:41 AM – 4:19 PM · 8h 39m
Dec: 8:07 AM – 3:53 PM · 7h 45m
Daylight Longest: 16h 16m · Shortest: 7h 44m

Nearby Stations

Cop Upper, Canada May 18 - September 21 Calgary Int'L A, Canada May 21 - September 17 Calgary Int'L Cs, Canada May 17 - September 23 Springbank A, Canada June 6 - August 23 Pekisko, CanadaJune 9 - August 16 Stavely Aafc, Canada May 18 - September 23

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