Herrick, SD frost dates
Last spring frostMay 3median date
First fall frostOct 10median date
Growing season160 daysfrost-free
Hardiness zone5aZone 5a
How Herrick compares
- In 8 years out of 10, the last spring frost in Herrick falls between April 19 and May 15, a 26-day window. The first fall frost falls between September 26 and October 22.
- The median last frost is 3 days earlier than the South Dakota median of May 6.
- Its 160-day growing season is longer than 88% of the 363 South Dakota places with a regular frost season (state median 149 days).
- The last frost is typical for zone 5a, where the median is May 3.
- The weather station records an average of 162 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 19 |
| 50% (median) | May 3 |
| 10% (safe for tender plants) | May 15 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 26 |
| 50% (median) | October 10 |
| 90% (late) | October 22 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Herrick, SD
Herrick, SD frost dates — last frost May 3, first frost Oct 10, zone 5a. whenisthelastfrost.com
Crop
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Start indoors: Feb 8 to Feb 22Transplant outside: Apr 5 to Apr 19
Start indoors: Feb 22 to Mar 8Transplant outside: May 17 to May 31
Start indoors: Feb 22 to Mar 8Transplant outside: May 17 to May 31
Start indoors: Mar 8 to Mar 22Transplant outside: May 10 to May 24
Start indoors: Mar 8 to Mar 22Transplant outside: Apr 12 to Apr 26Sow outdoors: Apr 5 to May 10Plant for fall: Aug 15 to Sep 12
Start indoors: Mar 8 to Mar 22Transplant outside: Apr 5 to Apr 19Sow outdoors: Apr 5 to Apr 19Plant for fall: Aug 1 to Aug 22
Start indoors: Mar 8 to Mar 22Transplant outside: Apr 19 to May 3Plant for fall: Jul 4 to Jul 25
Start indoors: Mar 8 to Mar 22Transplant outside: Apr 12 to Apr 26Plant for fall: Jul 4 to Jul 25
Start indoors: Mar 8 to Mar 22Transplant outside: Apr 19 to May 3Plant for fall: Jul 4 to Jul 25
Start indoors: Mar 22 to Apr 5Transplant outside: May 24 to Jun 7Sow outdoors: May 24 to Jun 7
Start indoors: Mar 22 to Apr 5Transplant outside: May 10 to May 24
Sow outdoors: Mar 22 to Apr 12Plant for fall: Jul 18 to Aug 8
Sow outdoors: Mar 22 to Apr 12Plant for fall: Aug 15 to Sep 5
Sow outdoors: Mar 29 to May 10Plant for fall: Aug 29 to Sep 19
Start indoors: Apr 5 to Apr 12Transplant outside: May 17 to May 24Sow outdoors: May 10 to May 24Plant for fall: Jul 25 to Aug 8
Start indoors: Apr 5 to Apr 12Sow outdoors: May 10 to May 24Plant for fall: Aug 1 to Aug 15
Start indoors: Apr 5 to Apr 12Sow outdoors: May 10 to May 24
Start indoors: Apr 5 to Apr 12Transplant outside: May 17 to May 31
Sow outdoors: Apr 12 to May 10Plant for fall: Jul 18 to Aug 1
Sow outdoors: Apr 12 to May 10Plant for fall: Aug 1 to Aug 15
Sow outdoors: Apr 12 to May 3
Sow outdoors: Apr 19 to May 17Plant for fall: Aug 1 to Aug 15
Sow outdoors: Apr 19 to May 10Plant for fall: Aug 15 to Sep 5
Sow outdoors: May 10 to May 31Plant for fall: Jul 25 to Aug 8
Sow outdoors: May 10 to May 24
Transplant outside: May 17 to Jun 7
Plant for fall: Sep 26 to Oct 31
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Herrick, SD
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 8 – Feb 22 | Apr 5 – Apr 19 | — | — |
| Peppers | Feb 22 – Mar 8 | May 17 – May 31 | — | — |
| Eggplant | Feb 22 – Mar 8 | May 17 – May 31 | — | — |
| Tomatoes | Mar 8 – Mar 22 | May 10 – May 24 | — | — |
| Lettuce | Mar 8 – Mar 22 | Apr 12 – Apr 26 | Apr 5 – May 10 | Aug 15 – Sep 12 |
| Kale | Mar 8 – Mar 22 | Apr 5 – Apr 19 | Apr 5 – Apr 19 | Aug 1 – Aug 22 |
| Broccoli | Mar 8 – Mar 22 | Apr 19 – May 3 | — | Jul 4 – Jul 25 |
| Cabbage | Mar 8 – Mar 22 | Apr 12 – Apr 26 | — | Jul 4 – Jul 25 |
| Cauliflower | Mar 8 – Mar 22 | Apr 19 – May 3 | — | Jul 4 – Jul 25 |
| Okra | Mar 22 – Apr 5 | May 24 – Jun 7 | May 24 – Jun 7 | — |
| Basil | Mar 22 – Apr 5 | May 10 – May 24 | — | — |
| Peas | — | — | Mar 22 – Apr 12 | Jul 18 – Aug 8 |
| Spinach | — | — | Mar 22 – Apr 12 | Aug 15 – Sep 5 |
| Radishes | — | — | Mar 29 – May 10 | Aug 29 – Sep 19 |
| Cucumbers | Apr 5 – Apr 12 | May 17 – May 24 | May 10 – May 24 | Jul 25 – Aug 8 |
| Zucchini & Summer Squash | Apr 5 – Apr 12 | — | May 10 – May 24 | Aug 1 – Aug 15 |
| Winter Squash & Pumpkins | Apr 5 – Apr 12 | — | May 10 – May 24 | — |
| Melons & Watermelon | Apr 5 – Apr 12 | May 17 – May 31 | — | — |
| Carrots | — | — | Apr 12 – May 10 | Jul 18 – Aug 1 |
| Beets | — | — | Apr 12 – May 10 | Aug 1 – Aug 15 |
| Potatoes | — | — | Apr 12 – May 3 | — |
| Swiss Chard | — | — | Apr 19 – May 17 | Aug 1 – Aug 15 |
| Cilantro | — | — | Apr 19 – May 10 | Aug 15 – Sep 5 |
| Green Beans | — | — | May 10 – May 31 | Jul 25 – Aug 8 |
| Sweet Corn | — | — | May 10 – May 24 | — |
| Sweet Potatoes | — | May 17 – Jun 7 | — | — |
| Garlic | — | — | — | Sep 26 – Oct 31 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Bonesteel, SD weather station, 22 km away (elevation 1,985 ft (605 m)).
Frost dates near Herrick
- Saint Charles May 3 · Oct 10
- Burke May 6 · Oct 3
- Gregory May 6 · Oct 3
- Bonesteel May 3 · Oct 10
- Dallas May 6 · Oct 3
- Fairfax May 3 · Oct 10
- Colome May 1 · Oct 9
- Platte Apr 30 · Oct 8
- Geddes Apr 30 · Oct 13
- Winner May 1 · Oct 9
Frequently asked questions
When is the last frost in Herrick, SD?
The median last spring frost in Herrick, SD is May 3. There is still about a 10% chance of frost after May 15, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Herrick, SD?
The median first fall frost is October 10, with about a 10% chance of frost before September 26.
How long is the growing season in Herrick, SD?
About 160 days between the median last spring frost and first fall frost.
What planting zone is Herrick, SD?
Herrick, SD is in USDA hardiness zone 5a.