Frost dates for ZIP 58363 (Perth, 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, Rolla 1NE, ND (9 miles away).
- Average last spring frostMay 2050% chance of a 32°F freeze after this date
- Average first fall frostSep 2650% chance of a 32°F freeze by this date
- Growing season (frost-free)128 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 58363 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 8 |
| 50% (the "average" last frost) | May 20 |
| 10% (cautious: only 1 year in 10 freezes later) | May 31 |
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 14 |
| 50% (the "average" first frost) | Sep 26 |
| 90% (late: most years have frozen by now) | Oct 8 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | May 29 | Sep 18 |
| 32°F (freeze) | May 20 | Sep 26 |
| 28°F (hard freeze) | May 11 | Oct 3 |
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 58363
Dates count from your average last spring frost (May 20) and first fall frost (Sep 26). 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 25–Apr 8 | May 27–Jun 10 (transplant) | – |
| Pepper (sweet and hot) | Mar 11–25 | Jun 3–17 (transplant) | – |
| Eggplant | Mar 11–25 | Jun 3–17 (transplant) | – |
| Tomatillo | Mar 25–Apr 8 | May 27–Jun 10 (transplant) | – |
| Lettuce | Mar 25–Apr 8 | Apr 29–May 20 (transplant) Apr 22–Jun 3 (sow outdoors) | Aug 1–22 (transplant) Jul 18–Aug 15 (sowing) |
| Spinach | – | Apr 8–29 (sow outdoors) | Aug 1–22 (sowing) |
| Kale | Mar 25–Apr 8 | Apr 22–May 6 (transplant) Apr 22–May 6 (sow outdoors) | Jul 4–Aug 1 (transplant) Jun 20–Jul 18 (sowing) |
| Collards | Mar 25–Apr 8 | Apr 22–May 20 (transplant) Apr 22–May 20 (sow outdoors) | Jul 4–Aug 1 (transplant) Jun 20–Jul 18 (sowing) |
| Broccoli | Mar 11–25 | Apr 22–May 6 (transplant) | Jun 20–Jul 18 (transplant) |
| Cabbage | Mar 11–25 | Apr 22–May 6 (transplant) | Jun 20–Jul 18 (transplant) |
| Cauliflower | Mar 11–25 | May 6–20 (transplant) | Jun 20–Jul 18 (transplant) |
| Brussels sprouts | Feb 25–Mar 11 | Apr 22–May 6 (transplant) | Jun 6–27 (transplant) |
| Kohlrabi | Mar 25–Apr 8 | Apr 22–May 6 (transplant) Apr 22–May 6 (sow outdoors) | Jul 18–Aug 1 (sowing) |
| Bok choy / Asian greens | – | Apr 22–May 6 (sow outdoors) | Aug 1–15 (sowing) |
| Arugula | – | Apr 22–May 20 (sow outdoors) | Aug 1–29 (sowing) |
| Mustard greens | – | Apr 22–May 13 (sow outdoors) | Aug 1–15 (sowing) |
| Swiss chard | Apr 8–22 | May 6–27 (transplant) May 6–Jun 3 (sow outdoors) | Jul 18–Aug 1 (sowing) |
| Beet | – | Apr 22–May 20 (sow outdoors) | Jul 18–Aug 1 (sowing) |
| Carrot | – | Apr 29–May 27 (sow outdoors) | Jul 4–18 (sowing) |
| Radish | – | Apr 15–May 27 (sow outdoors) | Aug 15–29 (sowing) |
| Turnip | – | Apr 22–May 13 (sow outdoors) | Jul 18–Aug 1 (sowing) |
| Parsnip | – | Apr 29–May 20 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Mar 25–Apr 22 (sow outdoors) | Jul 4–18 (sowing) |
| Onion (bulbing) | Feb 25–Mar 11 | Apr 8–22 (transplant) | – |
| Green onion / scallion | – | Apr 8–May 6 (sow outdoors) | Jul 18–Aug 1 (sowing) |
| Leek | Feb 25–Mar 11 | Apr 22–May 6 (transplant) | – |
| Garlic | – | – | Aug 15–Sep 12 (sowing) |
| Shallot | – | Apr 8–22 (transplant) | Aug 15–Sep 12 (sowing) |
| Potato | – | Apr 22–May 6 (transplant) | Jun 6–20 (transplant) |
| Sweet potato | – | Jun 10–24 (transplant) | – |
| Sweet corn | – | May 27–Jun 10 (sow outdoors) | – |
| Bean, bush (snap) | – | May 27–Jun 10 (sow outdoors) | – |
| Bean, pole | – | May 27–Jun 10 (sow outdoors) | – |
| Lima bean | – | Jun 3–17 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Jun 10–Jul 1 (sow outdoors) | – |
| Cucumber | Apr 22–29 | May 27–Jun 10 (transplant) May 27–Jun 10 (sow outdoors) | – |
| Summer squash / zucchini | Apr 22–29 | May 27–Jun 10 (transplant) May 27–Jun 10 (sow outdoors) | – |
| Winter squash | Apr 22–29 | May 27–Jun 10 (transplant) May 27–Jun 10 (sow outdoors) | – |
| Pumpkin | – | May 27–Jun 10 (sow outdoors) | – |
| Watermelon | Apr 22–29 | Jun 3–17 (transplant) Jun 3–17 (sow outdoors) | – |
| Cantaloupe / muskmelon | Apr 22–29 | Jun 3–17 (transplant) Jun 3–17 (sow outdoors) | – |
| Okra | Apr 8–22 | Jun 3–17 (transplant) Jun 3–17 (sow outdoors) | – |
| Celery | Feb 25–Mar 11 | May 27–Jun 3 (transplant) | – |
| Basil | Apr 8–22 | May 27–Jun 10 (transplant) May 27–Jun 10 (sow outdoors) | – |
| Cilantro | – | May 6–Jun 3 (sow outdoors) | Aug 1–15 (sowing) |
| Parsley | Mar 11–25 | May 6–20 (transplant) Apr 29–May 20 (sow outdoors) | – |
| Dill | – | May 20–Jun 3 (sow outdoors) | Aug 1–15 (sowing) |
| Sunflower | – | May 20–Jun 3 (sow outdoors) | – |
| Asparagus (crowns) | – | Apr 22–May 6 (transplant) | – |
| Rhubarb (crowns) | – | Apr 22–May 6 (transplant) | – |
| Strawberry (plants) | – | Apr 22–May 6 (transplant) | Jul 18–Aug 15 (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: Rolla 1NE, ND (NOAA GHCN-Daily ID USC00327664), elevation 1,833 ft, 9.4 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Belcourt Keya Radio, ND | 14 mi | May 19 | Sep 24 |
| Hansboro 4 NNE, ND | 17 mi | May 18 | Sep 23 |
| Rolette 3SE, ND | 18 mi | May 22 | Sep 20 |
The average last-frost dates of these stations span 4 days, a rough guide to local variation. See data sources & methods.
Frost questions for 58363
When is the last frost in 58363?
The average (50% chance) last spring freeze of 32°F for ZIP 58363 is May 20. For a more cautious planting date, use May 31, when only 1 year in 10 still sees a later freeze.
When is the first frost in 58363?
The average first fall freeze is September 26. In 1 year in 10 it comes by September 14.
What hardiness zone is 58363?
ZIP 58363 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 58363 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
58367 Rolla 58317 Bisbee 58353 Mylo 58365 Rocklake 58310 58339 Hansboro 58316 Shell Valley 58331 Egeland
Other ZIP codes in Towner County
58317 58324 58331 58339 58365 58372 All Towner County frost dates · North Dakota frost dates
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