When to plant in Holmen, WI
USDA Zone 5aEverything below — frost dates, hardiness zone, and what to plant when in Holmen, Wisconsin — is derived from the closest NOAA station with complete climate normals.
Zone 5a means Holmen sees real winter cold, but a good range of perennials survive; the frost dates above govern when annual vegetables go out.
The average first fall frost in Holmen is now 6 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
LA CROSSE MUNI AP · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Holmen’s own odds, recorded at LA CROSSE MUNI AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 17 | May 4 | Apr 21 | Sep 24 | Oct 6 | Oct 21 |
| 32°F | May 6 | Apr 23 | Apr 9 | Oct 3 | Oct 17 | Nov 1 |
| 28°F | Apr 27 | Apr 12 | Mar 31 | Oct 15 | Oct 28 | Nov 11 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Holmen, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 14 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Holmen planting FAQ
When is the last spring frost in Holmen, WI?
Plan for the last spring frost in Holmen around April 23 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Holmen, WI?
The first fall frost in Holmen typically arrives around October 17 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Holmen in?
Holmen is in USDA hardiness zone 5a. In zone 5a, winters are cold — pick cold-hardy varieties and protect tender crops.
How long is the growing season in Holmen?
There are roughly 177 frost-free days in Holmen (a moderate growing season), running from the average last frost around April 23 to the first fall frost near October 17.
When should I plant tomatoes in Holmen?
In Holmen, start tomato seeds indoors around February 26–March 12, then transplant seedlings outdoors around April 30 once the danger of frost has passed.
Never miss a window in Holmen
An email when it’s time to start seeds, transplant, and sow — timed to Holmen’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Onalaska · 10 km
- La Crosse · 17 km
- Winona · 33 km
- Eau Claire · 96 km
- Rochester · 97 km
- Chippewa Falls · 108 km
- Reedsburg · 113 km
- Menomonie · 114 km
Frost dates recorded at LA CROSSE MUNI AP, 10 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Holmen, WI — Frost Dates & Zone 5a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00014920. Retrieved from https://blissgarden.com/wisconsin/holmen.