Fall in zone 4bPhoto: Dietmar Rabich, CC BY-SA 4.0, via Wikimedia Commons
Frost dates for ZIP 54542 (Long Lake, WI)
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, Stambaugh 2SSE, MI (11 miles away).
- Average last spring frostJun 450% chance of a 32°F freeze after this date
- Average first fall frostSep 1050% chance of a 32°F freeze by this date
- Growing season (frost-free)95 daysmedian, 32°F threshold
- USDA hardiness zone4b-25 to -20°F avg. coldest night
Get The Dial for 54542 (Long Lake)
Frost and freeze alerts from the NWS forecast for 54542, the spring soil-temperature heads-up for pre-emergent, and a short weekly yard-timing email.
- Freeze alerts
- Soil-temp heads-up
- Weekly yard to-dos
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 18, 2026, from your frost dates, zone and soil temperature. Lawn timing · Vegetables · Pruning · Plants
Soil temperature now
2-inch depth
48°F Below 50°F
24-hour average · latest 48°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Wabeno #1 (32 mi).
4-inch depth
48°F Below 50°F
24-hour average · latest 48°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Wabeno #1 (32 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 54542 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 48°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) | May 22 |
| 50% (the "average" last frost) | Jun 4 |
| 10% (cautious: only 1 year in 10 freezes later) | Jun 26 |
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 21 |
| 50% (the "average" first frost) | Sep 10 |
| 90% (late: most years have frozen by now) | Sep 25 |
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 4 | Sep 10 |
| 28°F (hard freeze) | May 23 | Sep 24 |
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 54542
Dates count from your average last spring frost (Jun 4) and first fall frost (Sep 10). 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 9–23 | Jun 11–25 (transplant) | – |
| Pepper (sweet and hot) | Mar 26–Apr 9 | Jun 18–Jul 2 (transplant) | – |
| Eggplant | Mar 26–Apr 9 | Jun 18–Jul 2 (transplant) | – |
| Tomatillo | Apr 9–23 | Jun 11–25 (transplant) | – |
| Lettuce | Apr 9–23 | May 14–Jun 4 (transplant) May 7–Jun 18 (sow outdoors) | Jul 16–Aug 6 (transplant) Jul 2–30 (sowing) |
| Spinach | – | Apr 23–May 14 (sow outdoors) | Jul 16–Aug 6 (sowing) |
| Kale | Apr 9–23 | May 7–21 (transplant) May 7–21 (sow outdoors) | Jun 18–Jul 16 (transplant) Jun 4–Jul 2 (sowing) |
| Collards | Apr 9–23 | May 7–Jun 4 (transplant) May 7–Jun 4 (sow outdoors) | Jun 18–Jul 16 (transplant) |
| Broccoli | Mar 26–Apr 9 | May 7–21 (transplant) | Jun 4–Jul 2 (transplant) |
| Cabbage | Mar 26–Apr 9 | May 7–21 (transplant) | Jun 4–Jul 2 (transplant) |
| Cauliflower | Mar 26–Apr 9 | May 21–Jun 4 (transplant) | – |
| Brussels sprouts | Mar 12–26 | May 7–21 (transplant) | – |
| Kohlrabi | Apr 9–23 | May 7–21 (transplant) May 7–21 (sow outdoors) | Jul 2–16 (sowing) |
| Bok choy / Asian greens | – | May 7–21 (sow outdoors) | Jul 16–30 (sowing) |
| Arugula | – | May 7–Jun 4 (sow outdoors) | Jul 16–Aug 13 (sowing) |
| Mustard greens | – | May 7–28 (sow outdoors) | Jul 16–30 (sowing) |
| Swiss chard | Apr 23–May 7 | May 21–Jun 11 (transplant) May 21–Jun 18 (sow outdoors) | Jul 2–16 (sowing) |
| Beet | – | May 7–Jun 4 (sow outdoors) | Jul 2–16 (sowing) |
| Carrot | – | May 14–Jun 11 (sow outdoors) | Jun 18–Jul 2 (sowing) |
| Radish | – | Apr 30–Jun 11 (sow outdoors) | Jul 30–Aug 13 (sowing) |
| Turnip | – | May 7–28 (sow outdoors) | Jul 2–16 (sowing) |
| Parsnip | – | May 14–Jun 4 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Apr 9–May 7 (sow outdoors) | Jun 18–Jul 2 (sowing) |
| Onion (bulbing) | Mar 12–26 | Apr 23–May 7 (transplant) | – |
| Green onion / scallion | – | Apr 23–May 21 (sow outdoors) | Jul 2–16 (sowing) |
| Leek | Mar 12–26 | May 7–21 (transplant) | – |
| Garlic | – | – | Jul 30–Aug 27 (sowing) |
| Shallot | – | Apr 23–May 7 (transplant) | Jul 30–Aug 27 (sowing) |
| Potato | – | May 7–21 (transplant) | – |
| Sweet potato | – | Jun 25–Jul 9 (transplant) | – |
| Sweet corn | – | Jun 11–25 (sow outdoors) | – |
| Bean, bush (snap) | – | Jun 11–25 (sow outdoors) | – |
| Bean, pole | – | Jun 11–25 (sow outdoors) | – |
| Lima bean | – | Jun 18–Jul 2 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Jun 25–Jul 16 (sow outdoors) | – |
| Cucumber | May 7–14 | Jun 11–25 (transplant) Jun 11–25 (sow outdoors) | – |
| Summer squash / zucchini | May 7–14 | Jun 11–25 (transplant) Jun 11–25 (sow outdoors) | – |
| Winter squash | May 7–14 | Jun 11–25 (transplant) Jun 11–25 (sow outdoors) | – |
| Pumpkin | – | Jun 11–25 (sow outdoors) | – |
| Watermelon | May 7–14 | Jun 18–Jul 2 (transplant) Jun 18–Jul 2 (sow outdoors) | – |
| Cantaloupe / muskmelon | May 7–14 | Jun 18–Jul 2 (transplant) Jun 18–Jul 2 (sow outdoors) | – |
| Okra | Apr 23–May 7 | Jun 18–Jul 2 (transplant) Jun 18–Jul 2 (sow outdoors) | – |
| Celery | Mar 12–26 | Jun 11–18 (transplant) | – |
| Basil | Apr 23–May 7 | Jun 11–25 (transplant) Jun 11–25 (sow outdoors) | – |
| Cilantro | – | May 21–Jun 18 (sow outdoors) | Jul 16–30 (sowing) |
| Parsley | Mar 26–Apr 9 | May 21–Jun 4 (transplant) May 14–Jun 4 (sow outdoors) | – |
| Dill | – | Jun 4–18 (sow outdoors) | Jul 16–30 (sowing) |
| Sunflower | – | Jun 4–18 (sow outdoors) | – |
| Asparagus (crowns) | – | May 7–21 (transplant) | – |
| Rhubarb (crowns) | – | May 7–21 (transplant) | – |
| Strawberry (plants) | – | May 7–21 (transplant) | Jul 2–30 (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: Stambaugh 2SSE, MI (NOAA GHCN-Daily ID USC00207812), elevation 1,450 ft, 10.8 miles from the ZIP's center point. NOAA completeness flag: S (standard, 24+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Florence, WI | 23 mi | May 24 | Sep 25 |
| Eagle Rvr, WI | 25 mi | May 25 | Sep 24 |
| Amasa 1W, MI | 26 mi | Jun 6 | Sep 9 |
The average last-frost dates of these stations span 13 days, a rough guide to local variation. See data sources & methods.
Frost questions for 54542
When is the last frost in 54542?
The average (50% chance) last spring freeze of 32°F for ZIP 54542 is June 4. For a more cautious planting date, use June 26, when only 1 year in 10 still sees a later freeze.
When is the first frost in 54542?
The average first fall freeze is September 10. In 1 year in 10 it comes by August 21.
What hardiness zone is 54542?
ZIP 54542 is in USDA zone 4b (-25 to -20°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 54542 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
49915 Caspian 54120 49927 Gaastra 54511 Newald 49935 Iron River 54554 54562 Three Lakes 49902 Alpha
Other ZIP codes in Forest County
54103 54465 54511 54520 54541 54566 All Forest County frost dates · Wisconsin frost dates
Never miss a frost: get The Dial
Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
- Freeze alerts
- Soil-temp heads-up
- Weekly yard to-dos
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.