Frost Dates for Cartwright, 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. June 11
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 11
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 16
First Fall Frost August 27

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze May 24
First Fall Hard Freeze October 18
53.72°N, -57.03°W © OpenStreetMap

Growing Season

92 Days June 11 to September 11

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 4b

Learn more

Temperature

-10° 10° 30° 50° 70°
8°
High: 16°
Avg: 8°
Low: -1°
Jan
9°
High: 18°
Avg: 9°
Low: -1°
Feb
18°
High: 27°
Avg: 18°
Low: 8°
Mar
29°
High: 37°
Avg: 29°
Low: 21°
Apr
38°
High: 47°
Avg: 38°
Low: 30°
May
49°
High: 59°
Avg: 49°
Low: 39°
Jun
55°
High: 65°
Avg: 55°
Low: 45°
Jul
56°
High: 66°
Avg: 56°
Low: 46°
Aug
49°
High: 57°
Avg: 49°
Low: 41°
Sep
40°
High: 45°
Avg: 40°
Low: 34°
Oct
29°
High: 35°
Avg: 29°
Low: 24°
Nov
17°
High: 24°
Avg: 17°
Low: 11°
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"
3.5"
3.50"
Jan
3.7"
3.70"
Feb
3.7"
3.70"
Mar
3.4"
3.40"
Apr
2.6"
2.60"
May
3.7"
3.70"
Jun
4.4"
4.40"
Jul
4.2"
4.20"
Aug
3.9"
3.90"
Sep
4.6"
4.60"
Oct
3.3"
3.30"
Nov
3.6"
3.60"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8h9h11h14h16h17h16h15h12h10h8h7h
Jan: 8:08 AM – 3:52 PM · 7h 44m
Feb: 7:15 AM – 4:45 PM · 9h 30m
Mar: 6:15 AM – 5:45 PM · 11h 29m
Apr: 5:08 AM – 6:52 PM · 13h 44m
May: 4:10 AM – 7:50 PM · 15h 41m
Jun: 3:36 AM – 8:24 PM · 16h 48m
Jul: 3:50 AM – 8:10 PM · 16h 20m
Aug: 4:42 AM – 7:18 PM · 14h 36m
Sep: 5:48 AM – 6:12 PM · 12h 24m
Oct: 6:53 AM – 5:07 PM · 10h 13m
Nov: 7:53 AM – 4:07 PM · 8h 14m
Dec: 8:24 AM – 3:36 PM · 7h 12m
Daylight Longest: 16h 50m · Shortest: 7h 10m

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!

Planter app garden planner preview