Frost Dates for Mobridge, SD

Based on data from Mobridge Muni AP weather station, 1 miles away

Elevation: 1660 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 5
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. October 4

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 11
First Fall Frost September 30

Hard Freeze (28°F)

Last Spring Hard Freeze April 28
First Fall Hard Freeze October 12
45.54°N, 100.43°W © OpenStreetMap

Growing Season

152 Days May 5 to October 4

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 4b

Avg. annual minimum: −25 to −20°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
January27°17°6°
February32°21°11°
March45°33°22°
April59°46°33°
May70°58°45°
June80°68°56°
July87°75°62°
August86°73°60°
September77°63°50°
October60°48°37°
November44°34°23°
December32°22°12°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January0.9
February1.0
March1.3
April2.9
May4.0
June3.1
July2.9
August2.7
September3.0
October2.4
November1.2
December0.9

Sunrise / Sunset

Daylight Central Time (CT) Longest: 15h 30m · Shortest: 8h 30m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Central Time (CT))
Month Sunrise Sunset Daylight
January8:24 AM5:17 PM8h 53m
February7:52 AM6:00 PM10h 09m
March8:03 AM7:40 PM11h 37m
April7:03 AM8:21 PM13h 18m
May6:17 AM8:59 PM14h 42m
June5:58 AM9:26 PM15h 28m
July6:12 AM9:22 PM15h 10m
August6:48 AM8:44 PM13h 56m
September7:27 AM7:45 PM12h 18m
October8:06 AM6:47 PM10h 41m
November7:50 AM5:04 PM9h 14m
December8:22 AM4:53 PM8h 31m

Nearby Stations

Mobridge 2nnw, SD May 3 - October 8 Selby, SDMay 8 - October 1 Pollock, SDMay 8 - September 30 Mc Laughlin, SD May 12 - September 28 Timber Lake, SD May 10 - September 30 Eureka, SDMay 12 - September 27

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