Kellnersville, WI frost dates
Last spring frostMay 6median date
First fall frostOct 12median date
Growing season159 daysfrost-free
Hardiness zone5bZone 5b
How Kellnersville compares
- In 8 years out of 10, the last spring frost in Kellnersville falls between April 22 and May 20, a 28-day window. The first fall frost falls between September 30 and October 27.
- The median last frost is 1 day later than the Wisconsin median of May 5.
- Its 159-day growing season is longer than 62% of the 749 Wisconsin places with a regular frost season (state median 155 days).
- The last frost is 5 days later than the zone 5b median of May 1. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 5b chart.
- The weather station records an average of 156 nights a year at or below 32°F.
- Compared with Green Bay, WI, 35 km away, the last frost here is 6 days later than there and the growing season is 3 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 22 |
| 50% (median) | May 6 |
| 10% (safe for tender plants) | May 20 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 30 |
| 50% (median) | October 12 |
| 90% (late) | October 27 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Kellnersville, WI
Kellnersville, WI frost dates — last frost May 6, first frost Oct 12, zone 5b. whenisthelastfrost.com
Crop
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Start indoors: Feb 11 to Feb 25Transplant outside: Apr 8 to Apr 22
Start indoors: Feb 25 to Mar 11Transplant outside: May 20 to Jun 3
Start indoors: Feb 25 to Mar 11Transplant outside: May 20 to Jun 3
Start indoors: Mar 11 to Mar 25Transplant outside: May 13 to May 27
Start indoors: Mar 11 to Mar 25Transplant outside: Apr 15 to Apr 29Sow outdoors: Apr 8 to May 13Plant for fall: Aug 17 to Sep 14
Start indoors: Mar 11 to Mar 25Transplant outside: Apr 8 to Apr 22Sow outdoors: Apr 8 to Apr 22Plant for fall: Aug 3 to Aug 24
Start indoors: Mar 11 to Mar 25Transplant outside: Apr 22 to May 6Plant for fall: Jul 6 to Jul 27
Start indoors: Mar 11 to Mar 25Transplant outside: Apr 15 to Apr 29Plant for fall: Jul 6 to Jul 27
Start indoors: Mar 11 to Mar 25Transplant outside: Apr 22 to May 6Plant for fall: Jul 6 to Jul 27
Start indoors: Mar 25 to Apr 8Transplant outside: May 27 to Jun 10Sow outdoors: May 27 to Jun 10
Start indoors: Mar 25 to Apr 8Transplant outside: May 13 to May 27
Sow outdoors: Mar 25 to Apr 15Plant for fall: Jul 20 to Aug 10
Sow outdoors: Mar 25 to Apr 15Plant for fall: Aug 17 to Sep 7
Sow outdoors: Apr 1 to May 13Plant for fall: Aug 31 to Sep 21
Start indoors: Apr 8 to Apr 15Transplant outside: May 20 to May 27Sow outdoors: May 13 to May 27Plant for fall: Jul 27 to Aug 10
Start indoors: Apr 8 to Apr 15Sow outdoors: May 13 to May 27Plant for fall: Aug 3 to Aug 17
Start indoors: Apr 8 to Apr 15Sow outdoors: May 13 to May 27
Start indoors: Apr 8 to Apr 15Transplant outside: May 20 to Jun 3
Sow outdoors: Apr 15 to May 13Plant for fall: Jul 20 to Aug 3
Sow outdoors: Apr 15 to May 13Plant for fall: Aug 3 to Aug 17
Sow outdoors: Apr 15 to May 6
Sow outdoors: Apr 22 to May 20Plant for fall: Aug 3 to Aug 17
Sow outdoors: Apr 22 to May 13Plant for fall: Aug 17 to Sep 7
Sow outdoors: May 13 to Jun 3Plant for fall: Jul 27 to Aug 10
Sow outdoors: May 13 to May 27
Transplant outside: May 20 to Jun 10
Plant for fall: Sep 28 to Nov 2
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Kellnersville, WI
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 11 – Feb 25 | Apr 8 – Apr 22 | — | — |
| Peppers | Feb 25 – Mar 11 | May 20 – Jun 3 | — | — |
| Eggplant | Feb 25 – Mar 11 | May 20 – Jun 3 | — | — |
| Tomatoes | Mar 11 – Mar 25 | May 13 – May 27 | — | — |
| Lettuce | Mar 11 – Mar 25 | Apr 15 – Apr 29 | Apr 8 – May 13 | Aug 17 – Sep 14 |
| Kale | Mar 11 – Mar 25 | Apr 8 – Apr 22 | Apr 8 – Apr 22 | Aug 3 – Aug 24 |
| Broccoli | Mar 11 – Mar 25 | Apr 22 – May 6 | — | Jul 6 – Jul 27 |
| Cabbage | Mar 11 – Mar 25 | Apr 15 – Apr 29 | — | Jul 6 – Jul 27 |
| Cauliflower | Mar 11 – Mar 25 | Apr 22 – May 6 | — | Jul 6 – Jul 27 |
| Okra | Mar 25 – Apr 8 | May 27 – Jun 10 | May 27 – Jun 10 | — |
| Basil | Mar 25 – Apr 8 | May 13 – May 27 | — | — |
| Peas | — | — | Mar 25 – Apr 15 | Jul 20 – Aug 10 |
| Spinach | — | — | Mar 25 – Apr 15 | Aug 17 – Sep 7 |
| Radishes | — | — | Apr 1 – May 13 | Aug 31 – Sep 21 |
| Cucumbers | Apr 8 – Apr 15 | May 20 – May 27 | May 13 – May 27 | Jul 27 – Aug 10 |
| Zucchini & Summer Squash | Apr 8 – Apr 15 | — | May 13 – May 27 | Aug 3 – Aug 17 |
| Winter Squash & Pumpkins | Apr 8 – Apr 15 | — | May 13 – May 27 | — |
| Melons & Watermelon | Apr 8 – Apr 15 | May 20 – Jun 3 | — | — |
| Carrots | — | — | Apr 15 – May 13 | Jul 20 – Aug 3 |
| Beets | — | — | Apr 15 – May 13 | Aug 3 – Aug 17 |
| Potatoes | — | — | Apr 15 – May 6 | — |
| Swiss Chard | — | — | Apr 22 – May 20 | Aug 3 – Aug 17 |
| Cilantro | — | — | Apr 22 – May 13 | Aug 17 – Sep 7 |
| Green Beans | — | — | May 13 – Jun 3 | Jul 27 – Aug 10 |
| Sweet Corn | — | — | May 13 – May 27 | — |
| Sweet Potatoes | — | May 20 – Jun 10 | — | — |
| Garlic | — | — | — | Sep 28 – Nov 2 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Denmark Wwtp, WI weather station, 14 km away (elevation 810 ft (247 m)).
Frost dates near Kellnersville
- Maribel May 6 · Oct 12
- Francis Creek Apr 27 · Oct 21
- Whitelaw Apr 30 · Oct 20
- Mishicot Apr 27 · Oct 21
- Reedsville May 6 · Oct 6
- Denmark May 6 · Oct 12
- Manitowoc Apr 30 · Oct 20
- Tisch Mills May 6 · Oct 12
- Two Rivers Apr 27 · Oct 21
- Greenleaf May 6 · Oct 6
Frequently asked questions
When is the last frost in Kellnersville, WI?
The median last spring frost in Kellnersville, WI is May 6. There is still about a 10% chance of frost after May 20, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Kellnersville, WI?
The median first fall frost is October 12, with about a 10% chance of frost before September 30.
How long is the growing season in Kellnersville, WI?
About 159 days between the median last spring frost and first fall frost.
What planting zone is Kellnersville, WI?
Kellnersville, WI is in USDA hardiness zone 5b.