Frost Dates for Ottertail, MN

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 5
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. October 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 May 10
First Fall Frost September 30

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze April 28
First Fall Hard Freeze October 15
46.41°N, -95.55°W © OpenStreetMap

Growing Season

153 Days May 5 to October 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 4a

Learn more

Temperature

-10° 20° 50° 80°
8°
High: 17°
Avg: 8°
Low: -2°
Jan
13°
High: 23°
Avg: 13°
Low: 2°
Feb
26°
High: 36°
Avg: 26°
Low: 15°
Mar
41°
High: 52°
Avg: 41°
Low: 30°
Apr
55°
High: 65°
Avg: 55°
Low: 44°
May
65°
High: 75°
Avg: 65°
Low: 56°
Jun
69°
High: 79°
Avg: 69°
Low: 60°
Jul
68°
High: 77°
Avg: 68°
Low: 59°
Aug
59°
High: 69°
Avg: 59°
Low: 49°
Sep
45°
High: 54°
Avg: 45°
Low: 35°
Oct
29°
High: 37°
Avg: 29°
Low: 21°
Nov
15°
High: 23°
Avg: 15°
Low: 7°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 6" 6.1"
2.0"
2.02"
Jan
2.0"
2.05"
Feb
3.2"
3.24"
Mar
4.1"
4.06"
Apr
5.4"
5.43"
May
5.7"
5.65"
Jun
5.3"
5.33"
Jul
6.1"
6.06"
Aug
4.8"
4.80"
Sep
4.0"
4.00"
Oct
2.5"
2.50"
Nov
2.5"
2.48"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h15h16h15h14h12h11h9h8h
Jan: 7:37 AM – 4:23 PM · 8h 47m
Feb: 6:57 AM – 5:03 PM · 10h 05m
Mar: 6:12 AM – 5:48 PM · 11h 36m
Apr: 5:20 AM – 6:40 PM · 13h 20m
May: 4:36 AM – 7:24 PM · 14h 48m
Jun: 4:12 AM – 7:48 PM · 15h 35m
Jul: 4:22 AM – 7:38 PM · 15h 16m
Aug: 5:00 AM – 6:60 PM · 13h 59m
Sep: 5:51 AM – 6:09 PM · 12h 19m
Oct: 6:41 AM – 5:19 PM · 10h 38m
Nov: 7:26 AM – 4:34 PM · 9h 09m
Dec: 7:48 AM – 4:12 PM · 8h 24m
Daylight Longest: 15h 37m · Shortest: 8h 23m

Nearby Stations

New York Mills, MN May 10 - September 29 Wadena 3 S, MN May 10 - September 30 Fergus Falls, MNMay 4 - October 5 Detroit Lakes 12e, MN May 4 - October 3 Detroit Lakes 1 Nne, MN May 15 - September 24 Rothsay, MNMay 5 - October 3

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