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%) A 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%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. September 21

30% Probability

Only 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

Hardiness 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

Learn more

Köppen Climate

The 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

Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January28°17°5°
February32°20°8°
March43°30°17°
April56°42°27°
May66°53°39°
June77°63°49°
July85°70°55°
August84°68°52°
September75°59°42°
October58°44°29°
November44°30°17°
December33°21°8°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January0.7
February0.7
March1.1
April2.2
May2.4
June2.5
July2.5
August2.1
September1.8
October1.4
November0.4
December0.5

Sunrise / Sunset

Daylight Mountain Time (MT) Longest: 15h 34m · Shortest: 8h 26m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Mountain Time (MT))
Month Sunrise Sunset Daylight
January7:35 AM4:25 PM8h 50m
February7:02 AM5:09 PM10h 07m
March7:12 AM6:49 PM11h 37m
April6:11 AM7:30 PM13h 19m
May5:24 AM8:09 PM14h 45m
June5:05 AM8:37 PM15h 32m
July5:20 AM8:33 PM15h 13m
August5:56 AM7:54 PM13h 58m
September6:36 AM6:54 PM12h 18m
October7:16 AM5:55 PM10h 39m
November7:00 AM4:11 PM9h 11m
December7:33 AM4:00 PM8h 28m

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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