Frost dates for ZIP 55771 (Nett Lake, MN)
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, Orr 3E, MN (8 miles away).
- Average last spring frostJun 250% chance of a 32°F freeze after this date
- Average first fall frostSep 1550% chance of a 32°F freeze by this date
- Growing season (frost-free)102 daysmedian, 32°F threshold
- USDA hardiness zone3b-35 to -30°F avg. coldest night
Get The Dial for 55771 (Nett Lake)
Frost and freeze alerts from the NWS forecast for 55771, the spring soil-temperature heads-up for pre-emergent, and a short weekly yard-timing email.
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.
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 55771 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 19 |
| 50% (the "average" last frost) | Jun 2 |
| 10% (cautious: only 1 year in 10 freezes later) | Jun 17 |
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) | Aug 29 |
| 50% (the "average" first frost) | Sep 15 |
| 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) | n/a | n/a |
| 32°F (freeze) | Jun 2 | Sep 15 |
| 28°F (hard freeze) | May 20 | 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 55771
Dates count from your average last spring frost (Jun 2) and first fall frost (Sep 15). 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 | Apr 7–21 | Jun 9–23 (transplant) | – |
| Pepper (sweet and hot) | Mar 24–Apr 7 | Jun 16–30 (transplant) | – |
| Eggplant | Mar 24–Apr 7 | Jun 16–30 (transplant) | – |
| Tomatillo | Apr 7–21 | Jun 9–23 (transplant) | – |
| Lettuce | Apr 7–21 | May 12–Jun 2 (transplant) May 5–Jun 16 (sow outdoors) | Jul 21–Aug 11 (transplant) Jul 7–Aug 4 (sowing) |
| Spinach | – | Apr 21–May 12 (sow outdoors) | Jul 21–Aug 11 (sowing) |
| Kale | Apr 7–21 | May 5–19 (transplant) May 5–19 (sow outdoors) | Jun 23–Jul 21 (transplant) Jun 9–Jul 7 (sowing) |
| Collards | Apr 7–21 | May 5–Jun 2 (transplant) May 5–Jun 2 (sow outdoors) | Jun 23–Jul 21 (transplant) Jun 9–Jul 7 (sowing) |
| Broccoli | Mar 24–Apr 7 | May 5–19 (transplant) | Jun 9–Jul 7 (transplant) |
| Cabbage | Mar 24–Apr 7 | May 5–19 (transplant) | Jun 9–Jul 7 (transplant) |
| Cauliflower | Mar 24–Apr 7 | May 19–Jun 2 (transplant) | Jun 9–Jul 7 (transplant) |
| Brussels sprouts | Mar 10–24 | May 5–19 (transplant) | May 26–Jun 16 (transplant) |
| Kohlrabi | Apr 7–21 | May 5–19 (transplant) May 5–19 (sow outdoors) | Jul 7–21 (sowing) |
| Bok choy / Asian greens | – | May 5–19 (sow outdoors) | Jul 21–Aug 4 (sowing) |
| Arugula | – | May 5–Jun 2 (sow outdoors) | Jul 21–Aug 18 (sowing) |
| Mustard greens | – | May 5–26 (sow outdoors) | Jul 21–Aug 4 (sowing) |
| Swiss chard | Apr 21–May 5 | May 19–Jun 9 (transplant) May 19–Jun 16 (sow outdoors) | Jul 7–21 (sowing) |
| Beet | – | May 5–Jun 2 (sow outdoors) | Jul 7–21 (sowing) |
| Carrot | – | May 12–Jun 9 (sow outdoors) | Jun 23–Jul 7 (sowing) |
| Radish | – | Apr 28–Jun 9 (sow outdoors) | Aug 4–18 (sowing) |
| Turnip | – | May 5–26 (sow outdoors) | Jul 7–21 (sowing) |
| Parsnip | – | May 12–Jun 2 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Apr 7–May 5 (sow outdoors) | Jun 23–Jul 7 (sowing) |
| Onion (bulbing) | Mar 10–24 | Apr 21–May 5 (transplant) | – |
| Green onion / scallion | – | Apr 21–May 19 (sow outdoors) | Jul 7–21 (sowing) |
| Leek | Mar 10–24 | May 5–19 (transplant) | – |
| Garlic | – | – | Aug 4–Sep 1 (sowing) |
| Shallot | – | Apr 21–May 5 (transplant) | Aug 4–Sep 1 (sowing) |
| Potato | – | May 5–19 (transplant) | May 26–Jun 9 (transplant) |
| Sweet potato | – | Jun 23–Jul 7 (transplant) | – |
| Sweet corn | – | Jun 9–23 (sow outdoors) | – |
| Bean, bush (snap) | – | Jun 9–23 (sow outdoors) | – |
| Bean, pole | – | Jun 9–23 (sow outdoors) | – |
| Lima bean | – | Jun 16–30 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Jun 23–Jul 14 (sow outdoors) | – |
| Cucumber | May 5–12 | Jun 9–23 (transplant) Jun 9–23 (sow outdoors) | – |
| Summer squash / zucchini | May 5–12 | Jun 9–23 (transplant) Jun 9–23 (sow outdoors) | – |
| Winter squash | May 5–12 | Jun 9–23 (transplant) Jun 9–23 (sow outdoors) | – |
| Pumpkin | – | Jun 9–23 (sow outdoors) | – |
| Watermelon | May 5–12 | Jun 16–30 (transplant) Jun 16–30 (sow outdoors) | – |
| Cantaloupe / muskmelon | May 5–12 | Jun 16–30 (transplant) Jun 16–30 (sow outdoors) | – |
| Okra | Apr 21–May 5 | Jun 16–30 (transplant) Jun 16–30 (sow outdoors) | – |
| Celery | Mar 10–24 | Jun 9–16 (transplant) | – |
| Basil | Apr 21–May 5 | Jun 9–23 (transplant) Jun 9–23 (sow outdoors) | – |
| Cilantro | – | May 19–Jun 16 (sow outdoors) | Jul 21–Aug 4 (sowing) |
| Parsley | Mar 24–Apr 7 | May 19–Jun 2 (transplant) May 12–Jun 2 (sow outdoors) | – |
| Dill | – | Jun 2–16 (sow outdoors) | Jul 21–Aug 4 (sowing) |
| Sunflower | – | Jun 2–16 (sow outdoors) | – |
| Asparagus (crowns) | – | May 5–19 (transplant) | – |
| Rhubarb (crowns) | – | May 5–19 (transplant) | – |
| Strawberry (plants) | – | May 5–19 (transplant) | Jul 7–Aug 4 (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: Orr 3E, MN (NOAA GHCN-Daily ID USC00216211), elevation 1,315 ft, 8.0 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Celina 2E, MN | 18 mi | Jun 1 | Sep 15 |
| Kabetogama, MN | 21 mi | May 28 | Sep 16 |
| Cook 8NE, MN | 23 mi | May 12 | Oct 1 |
The average last-frost dates of these stations span 21 days, a rough guide to local variation. See data sources & methods.
Frost questions for 55771
When is the last frost in 55771?
The average (50% chance) last spring freeze of 32°F for ZIP 55771 is June 2. For a more cautious planting date, use June 17, when only 1 year in 10 still sees a later freeze.
When is the first frost in 55771?
The average first fall freeze is September 15. In 1 year in 10 it comes by August 29.
What hardiness zone is 55771?
ZIP 55771 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 55771 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
55772 Nett Lake 55723 Cook 56669 55725 55703 55781 56649 International Falls 55790 Tower
Other ZIP codes in St. Louis County
55602 55702 55703 55705 55706 55708 55710 55711 55713 55717 55719 55723 55724 55725 55732 55734 55736 55738 55741 55746 55750 55751 55758 55763 All St. Louis County frost dates · Minnesota frost dates
Never miss a frost: get The Dial
Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
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.