Frost Dates for Martin 8 E, SD
Elevation: 925 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 14
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 1
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 20
First Fall Frost
September 26
Hard Freeze (28°F)
Last Spring Hard Freeze
May 4
First Fall Hard Freeze
October 11
Growing Season
140 Days
May 14 to October 1
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
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.
Temperature
10°
30°
50°
70°
90°
Avg High
Avg Temp
Avg Low
Light Frost (32°F)
Hard Frost (28°F)
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 36° | 23° | 10° |
| February | 38° | 25° | 13° |
| March | 49° | 35° | 21° |
| April | 56° | 43° | 30° |
| May | 68° | 54° | 41° |
| June | 79° | 65° | 52° |
| July | 86° | 71° | 57° |
| August | 85° | 70° | 55° |
| September | 76° | 60° | 45° |
| October | 62° | 47° | 32° |
| November | 48° | 34° | 21° |
| December | 37° | 25° | 13° |
Precipitation
0"
2"
4"
6"
6.3"
Precipitation table
| Month | Precipitation |
|---|---|
| January | 2.5 |
| February | 2.5 |
| March | 4.0 |
| April | 5.5 |
| May | 5.5 |
| June | 6.0 |
| July | 6.3 |
| August | 5.8 |
| September | 4.2 |
| October | 4.2 |
| November | 3.9 |
| December | 3.3 |
Sunrise / Sunset
Daylight
Longest: 15h 12m · Shortest: 8h 48m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:26 AM | 4:34 PM | 9h 09m |
| February | 6:51 AM | 5:09 PM | 10h 18m |
| March | 6:11 AM | 5:49 PM | 11h 39m |
| April | 5:24 AM | 6:36 PM | 13h 12m |
| May | 4:46 AM | 7:14 PM | 14h 29m |
| June | 4:25 AM | 7:35 PM | 15h 11m |
| July | 4:33 AM | 7:27 PM | 14h 54m |
| August | 5:07 AM | 6:53 PM | 13h 46m |
| September | 5:52 AM | 6:08 PM | 12h 17m |
| October | 6:37 AM | 5:23 PM | 10h 47m |
| November | 7:16 AM | 4:44 PM | 9h 28m |
| December | 7:35 AM | 4:25 PM | 8h 49m |
Nearby Stations
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