Frost Dates for Mission 14 S, SD

Elevation: 857 m

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 11
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 2

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 16
First Fall Frost September 28

Hard Freeze (28°F)

Last Spring Hard Freeze May 1
First Fall Hard Freeze October 13
43.11°N, 100.61°W © OpenStreetMap

Growing Season

144 Days May 11 to October 2

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 5a

Avg. annual minimum: −20 to −15°F

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dwa Hot-Summer Continental (Dry Winter)

Hot, wet summers and cold, dry winters. Monsoon influence brings most rain in summer. Good for warm-season crops during the rainy season; winters are harsh but dry.

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
January33°22°11°
February37°25°13°
March47°35°22°
April57°44°31°
May68°55°42°
June79°66°53°
July87°73°59°
August86°71°57°
September77°62°48°
October61°48°34°
November47°35°23°
December35°25°14°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January1.6
February1.8
March2.6
April4.4
May5.1
June5.2
July5.6
August5.4
September5.2
October3.9
November2.7
December2.3

Sunrise / Sunset

Daylight Longest: 15h 12m · Shortest: 8h 48m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:25 AM4:35 PM9h 09m
February6:51 AM5:09 PM10h 18m
March6:11 AM5:49 PM11h 39m
April5:24 AM6:36 PM13h 11m
May4:46 AM7:14 PM14h 29m
June4:25 AM7:35 PM15h 10m
July4:33 AM7:27 PM14h 53m
August5:07 AM6:53 PM13h 46m
September5:52 AM6:08 PM12h 17m
October6:36 AM5:24 PM10h 47m
November7:16 AM4:44 PM9h 28m
December7:35 AM4:25 PM8h 49m

Nearby Stations

Mission, SDMay 9 - October 1 Valentine Miller Fld, NE May 12 - September 29 Valentine #1, NEMay 6 - October 4 Kilgore 1ne, NE May 10 - September 29 Wood, SDMay 10 - October 1 Harrington, SDMay 11 - October 1

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