Frost Dates for Hettinger, ND

Based on data from Hettinger Exp Stn weather station, 1 miles away

Elevation: 2697 ft

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 21
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 21
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 27
First Fall Frost September 15

Hard Freeze (28°F)

Last Spring Hard Freeze May 11
First Fall Hard Freeze September 29
46.00°N, -102.64°W © OpenStreetMap

Growing Season

123 Days May 21 to September 21

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

Avg. annual minimum: −30 to −25°F (−34 to −32°C)

Learn more

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

BSk Cold Semi-Arid (Steppe)

Cool to cold with low rainfall and wide temperature swings. Common in the western Great Plains and central Asia. Short growing seasons benefit from season extension techniques.

Köppen climate map

Temperature

0° 30° 60° 90°
17°
High: 28°F
Avg: 17°F
Low: 5°F
Jan
20°
High: 32°F
Avg: 20°F
Low: 8°F
Feb
30°
High: 43°F
Avg: 30°F
Low: 17°F
Mar
42°
High: 56°F
Avg: 42°F
Low: 27°F
Apr
53°
High: 66°F
Avg: 53°F
Low: 39°F
May
63°
High: 77°F
Avg: 63°F
Low: 49°F
Jun
70°
High: 85°F
Avg: 70°F
Low: 55°F
Jul
68°
High: 84°F
Avg: 68°F
Low: 52°F
Aug
59°
High: 75°F
Avg: 59°F
Low: 42°F
Sep
44°
High: 58°F
Avg: 44°F
Low: 29°F
Oct
30°
High: 44°F
Avg: 30°F
Low: 17°F
Nov
21°
High: 33°F
Avg: 21°F
Low: 8°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 2.5"
0.7"
0.71"
Jan
0.7"
0.70"
Feb
1.1"
1.09"
Mar
2.2"
2.16"
Apr
2.4"
2.39"
May
2.5"
2.46"
Jun
2.5"
2.45"
Jul
2.1"
2.07"
Aug
1.8"
1.83"
Sep
1.4"
1.44"
Oct
0.4"
0.36"
Nov
0.5"
0.50"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h11.5h13.5h15h15.5h15h14h12.5h10.5h9h8.5h
Jan: 7:35 AM – 4:25 PM · 8h 50m
Feb: 7:02 AM – 5:09 PM · 10h 07m
Mar: 7:12 AM – 6:49 PM · 11h 37m
Apr: 6:11 AM – 7:30 PM · 13h 19m
May: 5:24 AM – 8:09 PM · 14h 45m
Jun: 5:05 AM – 8:37 PM · 15h 32m
Jul: 5:20 AM – 8:33 PM · 15h 13m
Aug: 5:56 AM – 7:54 PM · 13h 58m
Sep: 6:36 AM – 6:54 PM · 12h 18m
Oct: 7:16 AM – 5:55 PM · 10h 39m
Nov: 7:00 AM – 4:11 PM · 9h 11m
Dec: 7:33 AM – 4:00 PM · 8h 28m
Daylight Mountain Time (MT) Longest: 15h 34m · Shortest: 8h 26m

Nearby Stations

Hettinger Muni AP, ND May 24 - September 18 Lodgepole 5sw, SD May 30 - September 11 Lemmon, SDMay 10 - September 30 Ralph 1 N, SD May 18 - September 23 Shadehill Rsvr, SD May 16 - September 24 Mott, NDMay 16 - September 25

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