Frost Dates for Upsala (Aut), 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 2
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 7
First Fall Frost September 3

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze May 21
First Fall Hard Freeze September 26
49.03°N, -90.47°W © OpenStreetMap

Growing Season

99 Days June 2 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 3a

Learn more

Temperature

-10° 20° 50° 80°
2°
High: 13°
Avg: 2°
Low: -8°
Jan
5°
High: 17°
Avg: 5°
Low: -7°
Feb
19°
High: 32°
Avg: 19°
Low: 6°
Mar
34°
High: 45°
Avg: 34°
Low: 22°
Apr
47°
High: 60°
Avg: 47°
Low: 35°
May
58°
High: 71°
Avg: 58°
Low: 46°
Jun
63°
High: 75°
Avg: 63°
Low: 51°
Jul
60°
High: 72°
Avg: 60°
Low: 48°
Aug
53°
High: 64°
Avg: 53°
Low: 42°
Sep
39°
High: 47°
Avg: 39°
Low: 31°
Oct
24°
High: 31°
Avg: 24°
Low: 17°
Nov
10°
High: 18°
Avg: 10°
Low: 1°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 4.4"
0.5"
0.50"
Jan
0.4"
0.40"
Feb
0.9"
0.90"
Mar
2.0"
2.00"
Apr
3.5"
3.50"
May
3.8"
3.80"
Jun
4.4"
4.40"
Jul
2.9"
2.90"
Aug
4.1"
4.10"
Sep
3.2"
3.20"
Oct
1.9"
1.90"
Nov
1.0"
1.00"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec8h10h12h13h15h16h16h14h12h11h9h8h
Jan: 7:47 AM – 4:13 PM · 8h 27m
Feb: 7:03 AM – 4:57 PM · 9h 54m
Mar: 6:13 AM – 5:47 PM · 11h 34m
Apr: 5:16 AM – 6:44 PM · 13h 28m
May: 4:28 AM – 7:32 PM · 15h 05m
Jun: 4:01 AM – 7:59 PM · 15h 58m
Jul: 4:12 AM – 7:48 PM · 15h 36m
Aug: 4:54 AM – 7:06 PM · 14h 11m
Sep: 5:50 AM – 6:10 PM · 12h 20m
Oct: 6:45 AM – 5:15 PM · 10h 30m
Nov: 7:34 AM – 4:26 PM · 8h 51m
Dec: 7:59 AM – 4:01 PM · 8h 02m
Daylight Longest: 15h 60m · Shortest: 8h 00m

Nearby Stations

Atikokan (Aut), Canada May 27 - September 22 Flint, CanadaJune 13 - August 25 Gunflint Lake 10 Nw, MN May 23 - September 26 Welcome Island (Aut), Canada May 7 - October 26 Sioux Lookout A, Canada May 17 - September 28

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