Fall in zone 5aPhoto: Dietmar Rabich, CC BY-SA 4.0, via Wikimedia Commons
Frost dates for ZIP 57568 (Presho, SD)
Average last spring and first fall frost dates with 10%, 50% and 90% odds, from NOAA's 1991–2020 climate normals for the nearest weather station, Presho 7 NW, SD (9 miles away).
- Average last spring frostMay 1250% chance of a 32°F freeze after this date
- Average first fall frostSep 2950% chance of a 32°F freeze by this date
- Growing season (frost-free)140 daysmedian, 32°F threshold
- USDA hardiness zone5a-20 to -15°F avg. coldest night
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This week in your yard
As of Oct 18, 2026, from your frost dates, zone and soil temperature. Lawn timing · Vegetables · Pruning · Plants
Soil temperature now
2-inch depth
51°F 50–55°F
24-hour average · latest 53°F, as of Oct 17, 11:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Pierre 24 S (16 mi).
4-inch depth
53°F 50–55°F
24-hour average · latest 54°F, as of Oct 17, 11:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Pierre 24 S (16 mi).
Fall: Texas A&M AgriLife times fall pre-emergent (for winter weeds such as annual bluegrass) to soil cooling to about 70°F for several days. The 50–55°F band is the spring trigger. Always read and follow the product label.
7-day forecast and frost risk
The latest National Weather Service 7-day forecast and any Frost Advisory or Freeze Warning for 57568 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 53°F at 4 inches (estimated soil temperature, not a station reading). Fall pre-emergent window is mostly past. Next: spring, when soil reaches 50°F (typically mid-April to early May).
Fertilizer window
Lawn region: North (cool-season). Timing only; always follow the product label.
- Kentucky bluegrass (cool-season): Early fall: Around Labor Day (late August–September); Late fall: Late October–November, before the ground freezes; Late spring: Optional around Memorial Day. Avoid: Early-spring and midsummer feeding (pushes top growth, favors crabgrass).
Plant now
No vegetable planting windows are open this week.
Prune now
No frost-timed pruning windows are open this week.
Spring-flowering shrubs are pruned right after their flowers fade, not by date. See the pruning guide.
Last spring frost odds
| Chance of a 32°F freeze after this date | Date |
|---|---|
| 90% (early: most years still freeze after this) | Apr 29 |
| 50% (the "average" last frost) | May 12 |
| 10% (cautious: only 1 year in 10 freezes later) | May 28 |
Most gardeners plant frost-tender crops (tomatoes, peppers, basil) after the 50% date, and closer to the 10% date for less risk.
First fall frost odds
| Chance the first 32°F freeze has happened by this date | Date |
|---|---|
| 10% (early: 1 year in 10 freezes this soon) | Sep 16 |
| 50% (the "average" first frost) | Sep 29 |
| 90% (late: most years have frozen by now) | Oct 12 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | May 22 | Sep 21 |
| 32°F (freeze) | May 12 | Sep 29 |
| 28°F (hard freeze) | May 2 | Oct 7 |
n/a means NOAA did not publish a date at that threshold for this station (usually because it rarely gets that cold).
Vegetable planting calendar for 57568
Dates count from your average last spring frost (May 12) and first fall frost (Sep 29). Half of years have a frost after the spring date, so give tender crops (tomatoes, peppers, squash) some slack.
| Crop | Start indoors | Spring planting | Fall planting |
|---|---|---|---|
| Tomato | Mar 17–31 | May 19–Jun 2 (transplant) | – |
| Pepper (sweet and hot) | Mar 3–17 | May 26–Jun 9 (transplant) | – |
| Eggplant | Mar 3–17 | May 26–Jun 9 (transplant) | – |
| Tomatillo | Mar 17–31 | May 19–Jun 2 (transplant) | – |
| Lettuce | Mar 17–31 | Apr 21–May 12 (transplant) Apr 14–May 26 (sow outdoors) | Aug 4–25 (transplant) Jul 21–Aug 18 (sowing) |
| Spinach | – | Mar 31–Apr 21 (sow outdoors) | Aug 4–25 (sowing) |
| Kale | Mar 17–31 | Apr 14–28 (transplant) Apr 14–28 (sow outdoors) | Jul 7–Aug 4 (transplant) Jun 23–Jul 21 (sowing) |
| Collards | Mar 17–31 | Apr 14–May 12 (transplant) Apr 14–May 12 (sow outdoors) | Jul 7–Aug 4 (transplant) Jun 23–Jul 21 (sowing) |
| Broccoli | Mar 3–17 | Apr 14–28 (transplant) | Jun 23–Jul 21 (transplant) |
| Cabbage | Mar 3–17 | Apr 14–28 (transplant) | Jun 23–Jul 21 (transplant) |
| Cauliflower | Mar 3–17 | Apr 28–May 12 (transplant) | Jun 23–Jul 21 (transplant) |
| Brussels sprouts | Feb 17–Mar 3 | Apr 14–28 (transplant) | Jun 9–30 (transplant) |
| Kohlrabi | Mar 17–31 | Apr 14–28 (transplant) Apr 14–28 (sow outdoors) | Jul 21–Aug 4 (sowing) |
| Bok choy / Asian greens | – | Apr 14–28 (sow outdoors) | Aug 4–18 (sowing) |
| Arugula | – | Apr 14–May 12 (sow outdoors) | Aug 4–Sep 1 (sowing) |
| Mustard greens | – | Apr 14–May 5 (sow outdoors) | Aug 4–18 (sowing) |
| Swiss chard | Mar 31–Apr 14 | Apr 28–May 19 (transplant) Apr 28–May 26 (sow outdoors) | Jul 21–Aug 4 (sowing) |
| Beet | – | Apr 14–May 12 (sow outdoors) | Jul 21–Aug 4 (sowing) |
| Carrot | – | Apr 21–May 19 (sow outdoors) | Jul 7–21 (sowing) |
| Radish | – | Apr 7–May 19 (sow outdoors) | Aug 18–Sep 1 (sowing) |
| Turnip | – | Apr 14–May 5 (sow outdoors) | Jul 21–Aug 4 (sowing) |
| Parsnip | – | Apr 21–May 12 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Mar 17–Apr 14 (sow outdoors) | Jul 7–21 (sowing) |
| Onion (bulbing) | Feb 17–Mar 3 | Mar 31–Apr 14 (transplant) | – |
| Green onion / scallion | – | Mar 31–Apr 28 (sow outdoors) | Jul 21–Aug 4 (sowing) |
| Leek | Feb 17–Mar 3 | Apr 14–28 (transplant) | – |
| Garlic | – | – | Aug 18–Sep 15 (sowing) |
| Shallot | – | Mar 31–Apr 14 (transplant) | Aug 18–Sep 15 (sowing) |
| Potato | – | Apr 14–28 (transplant) | Jun 9–23 (transplant) |
| Sweet potato | – | Jun 2–16 (transplant) | – |
| Sweet corn | – | May 19–Jun 2 (sow outdoors) | – |
| Bean, bush (snap) | – | May 19–Jun 2 (sow outdoors) | – |
| Bean, pole | – | May 19–Jun 2 (sow outdoors) | – |
| Lima bean | – | May 26–Jun 9 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Jun 2–23 (sow outdoors) | – |
| Cucumber | Apr 14–21 | May 19–Jun 2 (transplant) May 19–Jun 2 (sow outdoors) | – |
| Summer squash / zucchini | Apr 14–21 | May 19–Jun 2 (transplant) May 19–Jun 2 (sow outdoors) | – |
| Winter squash | Apr 14–21 | May 19–Jun 2 (transplant) May 19–Jun 2 (sow outdoors) | – |
| Pumpkin | – | May 19–Jun 2 (sow outdoors) | – |
| Watermelon | Apr 14–21 | May 26–Jun 9 (transplant) May 26–Jun 9 (sow outdoors) | – |
| Cantaloupe / muskmelon | Apr 14–21 | May 26–Jun 9 (transplant) May 26–Jun 9 (sow outdoors) | – |
| Okra | Mar 31–Apr 14 | May 26–Jun 9 (transplant) May 26–Jun 9 (sow outdoors) | – |
| Celery | Feb 17–Mar 3 | May 19–26 (transplant) | – |
| Basil | Mar 31–Apr 14 | May 19–Jun 2 (transplant) May 19–Jun 2 (sow outdoors) | – |
| Cilantro | – | Apr 28–May 26 (sow outdoors) | Aug 4–18 (sowing) |
| Parsley | Mar 3–17 | Apr 28–May 12 (transplant) Apr 21–May 12 (sow outdoors) | – |
| Dill | – | May 12–26 (sow outdoors) | Aug 4–18 (sowing) |
| Sunflower | – | May 12–26 (sow outdoors) | – |
| Asparagus (crowns) | – | Apr 14–28 (transplant) | – |
| Rhubarb (crowns) | – | Apr 14–28 (transplant) | – |
| Strawberry (plants) | – | Apr 14–28 (transplant) | Jul 21–Aug 18 (transplant) |
Typical ranges from university extension planting calendars, adjusted to your frost dates. Probabilities, not guarantees. Fall windows that would overlap spring planting are left out, as are fall crops of frost-tender plants where the frost-free season is under 210 days.
Where these numbers come from
Station: Presho 7 NW, SD (NOAA GHCN-Daily ID USC00396790), elevation 1,810 ft, 8.6 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Kennebec, SD | 12 mi | May 12 | Sep 28 |
| Pierre 24 S, SD | 16 mi | May 6 | Oct 7 |
| Murdo, SD | 30 mi | May 3 | Oct 9 |
The average last-frost dates of these stations span 9 days, a rough guide to local variation. See data sources & methods.
Frost questions for 57568
When is the last frost in 57568?
The average (50% chance) last spring freeze of 32°F for ZIP 57568 is May 12. For a more cautious planting date, use May 28, when only 1 year in 10 still sees a later freeze.
When is the first frost in 57568?
The average first fall freeze is September 29. In 1 year in 10 it comes by September 16.
What hardiness zone is 57568?
ZIP 57568 is in USDA zone 5a (-20 to -15°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 57568 right now?
This page shows the latest 2-inch and 4-inch soil temperature from the nearest public soil station (USDA SCAN, NOAA USCRN or TexMesonet), or a labeled estimate when no station is close, against the 50–55°F spring pre-emergent band.
Nearby ZIP codes
57576 Vivian 57544 Kennebec 57531 Draper 57541 Ideal 57585 Wood 57584 New Witten 57569 Reliance 57534 Hamill
Other ZIP codes in Lyman County
57365 57544 57548 57569 57576 All Lyman County frost dates · South Dakota frost dates
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Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
- Freeze alerts
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Free. One weekly email plus alerts when your ZIP has a frost or a soil-temperature change worth acting on. After you submit, Kit (our email provider) sends a confirmation email: check your email and click the link to confirm. You aren't subscribed until you do. We collect only your email address and ZIP, sent to Kit to deliver The Dial. Unsubscribe anytime.