Frost Dates for Hettinger Muni AP, ND

Elevation: 825 m

Frost Dates

Last Spring Frost (50%) May 24

First Fall Frost (50%) September 18

30% Probability

Last Spring Frost May 31

First Fall Frost September 10

Hard Freeze (28°F)

Last Spring Hard Freeze May 13

First Fall Hard Freeze September 27

46.01°N, 102.65°W © OpenStreetMap

Growing Season

117 Days May 24 to September 18

USDA Hardiness Zone

Zone 4a

Avg. annual minimum: −30 to −25°F

Learn more

Köppen Climate

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°

16°

Jan

20°

Feb

30°

Mar

41°

Apr

52°

May

62°

Jun

69°

Jul

68°

Aug

58°

Sep

43°

Oct

30°

Nov

19°

Dec

32°F

28°F

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
January	27°	16°	5°
February	31°	20°	8°
March	42°	30°	18°
April	55°	41°	28°
May	66°	52°	38°
June	76°	62°	49°
July	84°	69°	54°
August	84°	68°	52°
September	74°	58°	42°
October	57°	43°	29°
November	42°	30°	17°
December	31°	19°	8°

Precipitation

0" 1" 2" 2.5"

0.7"

Jan

0.7"

Feb

1.1"

Mar

2.2"

Apr

2.4"

May

2.5"

Jun

2.5"

Jul

2.1"

Aug

1.8"

Sep

1.4"

Oct

0.4"

Nov

0.5"

Dec

Precipitation table

Average monthly precipitation (inches)
Month	Precipitation
January	0.7
February	0.7
March	1.1
April	2.2
May	2.4
June	2.5
July	2.5
August	2.1
September	1.8
October	1.4
November	0.4
December	0.5

Sunrise / Sunset

Jan: 7:35 AM – 4:25 PM · 8h 50m

Feb: 6:57 AM – 5:03 PM · 10h 07m

Mar: 6:12 AM – 5:48 PM · 11h 37m

Apr: 5:20 AM – 6:40 PM · 13h 19m

May: 4:37 AM – 7:23 PM · 14h 45m

Jun: 4:14 AM – 7:46 PM · 15h 32m

Jul: 4:24 AM – 7:36 PM · 15h 13m

Aug: 5:01 AM – 6:59 PM · 13h 58m

Sep: 5:51 AM – 6:09 PM · 12h 18m

Oct: 6:40 AM – 5:20 PM · 10h 39m

Nov: 7:24 AM – 4:36 PM · 9h 11m

Dec: 7:46 AM – 4:14 PM · 8h 28m

Daylight Longest: 15h 34m · Shortest: 8h 26m

Sunrise and sunset table

Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month	Sunrise	Sunset	Daylight
January	7:35 AM	4:25 PM	8h 50m
February	6:57 AM	5:03 PM	10h 07m
March	6:12 AM	5:48 PM	11h 37m
April	5:20 AM	6:40 PM	13h 19m
May	4:37 AM	7:23 PM	14h 45m
June	4:14 AM	7:46 PM	15h 32m
July	4:24 AM	7:36 PM	15h 13m
August	5:01 AM	6:59 PM	13h 58m
September	5:51 AM	6:09 PM	12h 18m
October	6:40 AM	5:20 PM	10h 39m
November	7:24 AM	4:36 PM	9h 11m
December	7:46 AM	4:14 PM	8h 28m

Nearby Stations

Hettinger Exp Stn, ND May 21 - September 21 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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