Frost dates for ZIP 58310 (Rolette County, ND)
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, Rolette 3SE, ND (12 miles away).
- Average last spring frostMay 2250% chance of a 32°F freeze after this date
- Average first fall frostSep 2050% chance of a 32°F freeze by this date
- Growing season (frost-free)120 daysmedian, 32°F threshold
- USDA hardiness zone3b-35 to -30°F avg. coldest night
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This week in your yard
As of Oct 17, 2026, from your frost dates, zone and soil temperature. Lawn timing · Vegetables · Pruning · Plants
Soil temperature now
2-inch depth
No soil station with a fresh reading within 62 miles.
4-inch depth
No soil station with a fresh reading within 62 miles.
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 58310 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
No soil reading near this ZIP. Typical extension timing for your region: spring 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) | May 10 |
| 50% (the "average" last frost) | May 22 |
| 10% (cautious: only 1 year in 10 freezes later) | Jun 3 |
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 5 |
| 50% (the "average" first frost) | Sep 20 |
| 90% (late: most years have frozen by now) | Oct 1 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | May 30 | Sep 10 |
| 32°F (freeze) | May 22 | Sep 20 |
| 28°F (hard freeze) | May 13 | Sep 27 |
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 58310
Dates count from your average last spring frost (May 22) and first fall frost (Sep 20). 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 27–Apr 10 | May 29–Jun 12 (transplant) | – |
| Pepper (sweet and hot) | Mar 13–27 | Jun 5–19 (transplant) | – |
| Eggplant | Mar 13–27 | Jun 5–19 (transplant) | – |
| Tomatillo | Mar 27–Apr 10 | May 29–Jun 12 (transplant) | – |
| Lettuce | Mar 27–Apr 10 | May 1–22 (transplant) Apr 24–Jun 5 (sow outdoors) | Jul 26–Aug 16 (transplant) Jul 12–Aug 9 (sowing) |
| Spinach | – | Apr 10–May 1 (sow outdoors) | Jul 26–Aug 16 (sowing) |
| Kale | Mar 27–Apr 10 | Apr 24–May 8 (transplant) Apr 24–May 8 (sow outdoors) | Jun 28–Jul 26 (transplant) Jun 14–Jul 12 (sowing) |
| Collards | Mar 27–Apr 10 | Apr 24–May 22 (transplant) Apr 24–May 22 (sow outdoors) | Jun 28–Jul 26 (transplant) Jun 14–Jul 12 (sowing) |
| Broccoli | Mar 13–27 | Apr 24–May 8 (transplant) | Jun 14–Jul 12 (transplant) |
| Cabbage | Mar 13–27 | Apr 24–May 8 (transplant) | Jun 14–Jul 12 (transplant) |
| Cauliflower | Mar 13–27 | May 8–22 (transplant) | Jun 14–Jul 12 (transplant) |
| Brussels sprouts | Feb 27–Mar 13 | Apr 24–May 8 (transplant) | May 31–Jun 21 (transplant) |
| Kohlrabi | Mar 27–Apr 10 | Apr 24–May 8 (transplant) Apr 24–May 8 (sow outdoors) | Jul 12–26 (sowing) |
| Bok choy / Asian greens | – | Apr 24–May 8 (sow outdoors) | Jul 26–Aug 9 (sowing) |
| Arugula | – | Apr 24–May 22 (sow outdoors) | Jul 26–Aug 23 (sowing) |
| Mustard greens | – | Apr 24–May 15 (sow outdoors) | Jul 26–Aug 9 (sowing) |
| Swiss chard | Apr 10–24 | May 8–29 (transplant) May 8–Jun 5 (sow outdoors) | Jul 12–26 (sowing) |
| Beet | – | Apr 24–May 22 (sow outdoors) | Jul 12–26 (sowing) |
| Carrot | – | May 1–29 (sow outdoors) | Jun 28–Jul 12 (sowing) |
| Radish | – | Apr 17–May 29 (sow outdoors) | Aug 9–23 (sowing) |
| Turnip | – | Apr 24–May 15 (sow outdoors) | Jul 12–26 (sowing) |
| Parsnip | – | May 1–22 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Mar 27–Apr 24 (sow outdoors) | Jun 28–Jul 12 (sowing) |
| Onion (bulbing) | Feb 27–Mar 13 | Apr 10–24 (transplant) | – |
| Green onion / scallion | – | Apr 10–May 8 (sow outdoors) | Jul 12–26 (sowing) |
| Leek | Feb 27–Mar 13 | Apr 24–May 8 (transplant) | – |
| Garlic | – | – | Aug 9–Sep 6 (sowing) |
| Shallot | – | Apr 10–24 (transplant) | Aug 9–Sep 6 (sowing) |
| Potato | – | Apr 24–May 8 (transplant) | May 31–Jun 14 (transplant) |
| Sweet potato | – | Jun 12–26 (transplant) | – |
| Sweet corn | – | May 29–Jun 12 (sow outdoors) | – |
| Bean, bush (snap) | – | May 29–Jun 12 (sow outdoors) | – |
| Bean, pole | – | May 29–Jun 12 (sow outdoors) | – |
| Lima bean | – | Jun 5–19 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Jun 12–Jul 3 (sow outdoors) | – |
| Cucumber | Apr 24–May 1 | May 29–Jun 12 (transplant) May 29–Jun 12 (sow outdoors) | – |
| Summer squash / zucchini | Apr 24–May 1 | May 29–Jun 12 (transplant) May 29–Jun 12 (sow outdoors) | – |
| Winter squash | Apr 24–May 1 | May 29–Jun 12 (transplant) May 29–Jun 12 (sow outdoors) | – |
| Pumpkin | – | May 29–Jun 12 (sow outdoors) | – |
| Watermelon | Apr 24–May 1 | Jun 5–19 (transplant) Jun 5–19 (sow outdoors) | – |
| Cantaloupe / muskmelon | Apr 24–May 1 | Jun 5–19 (transplant) Jun 5–19 (sow outdoors) | – |
| Okra | Apr 10–24 | Jun 5–19 (transplant) Jun 5–19 (sow outdoors) | – |
| Celery | Feb 27–Mar 13 | May 29–Jun 5 (transplant) | – |
| Basil | Apr 10–24 | May 29–Jun 12 (transplant) May 29–Jun 12 (sow outdoors) | – |
| Cilantro | – | May 8–Jun 5 (sow outdoors) | Jul 26–Aug 9 (sowing) |
| Parsley | Mar 13–27 | May 8–22 (transplant) May 1–22 (sow outdoors) | – |
| Dill | – | May 22–Jun 5 (sow outdoors) | Jul 26–Aug 9 (sowing) |
| Sunflower | – | May 22–Jun 5 (sow outdoors) | – |
| Asparagus (crowns) | – | Apr 24–May 8 (transplant) | – |
| Rhubarb (crowns) | – | Apr 24–May 8 (transplant) | – |
| Strawberry (plants) | – | Apr 24–May 8 (transplant) | Jul 12–Aug 9 (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: Rolette 3SE, ND (NOAA GHCN-Daily ID USC00327655), elevation 1,620 ft, 12.4 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Leeds, ND | 20 mi | May 15 | Sep 27 |
| Belcourt Keya Radio, ND | 21 mi | May 19 | Sep 24 |
| Rolla 1NE, ND | 22 mi | May 20 | Sep 26 |
The average last-frost dates of these stations span 7 days, a rough guide to local variation. See data sources & methods.
Frost questions for 58310
When is the last frost in 58310?
The average (50% chance) last spring freeze of 32°F for ZIP 58310 is May 22. For a more cautious planting date, use June 3, when only 1 year in 10 still sees a later freeze.
When is the first frost in 58310?
The average first fall freeze is September 20. In 1 year in 10 it comes by September 5.
What hardiness zone is 58310?
ZIP 58310 is in USDA zone 3b (-35 to -30°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 58310 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
58353 Mylo 58385 Wolford 58317 Bisbee 58363 Perth 58366 Rolette 58324 Cando 58386 York 58346 Leeds
Other ZIP codes in Rolette County
58316 58329 58353 58366 58367 58369 All Rolette County frost dates · North Dakota frost dates
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