Saukville, WI frost dates
Last spring frostMay 5median date
First fall frostOct 11median date
Growing season159 daysfrost-free
Hardiness zone5bZone 5b
How Saukville compares
- In 8 years out of 10, the last spring frost in Saukville falls between April 22 and May 19, a 27-day window. The first fall frost falls between September 29 and October 24.
- The median last frost is the same as 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 4 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 157 nights a year at or below 32°F.
- Compared with Milwaukee, WI, 38 km away, the last frost here is 9 days later than there and the growing season is 20 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 22 |
| 50% (median) | May 5 |
| 10% (safe for tender plants) | May 19 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 29 |
| 50% (median) | October 11 |
| 90% (late) | October 24 |
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 Saukville, WI
Saukville, WI frost dates — last frost May 5, first frost Oct 11, zone 5b. whenisthelastfrost.com
Crop
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Start indoors: Feb 10 to Feb 24Transplant outside: Apr 7 to Apr 21
Start indoors: Feb 24 to Mar 10Transplant outside: May 19 to Jun 2
Start indoors: Feb 24 to Mar 10Transplant outside: May 19 to Jun 2
Start indoors: Mar 10 to Mar 24Transplant outside: May 12 to May 26
Start indoors: Mar 10 to Mar 24Transplant outside: Apr 14 to Apr 28Sow outdoors: Apr 7 to May 12Plant for fall: Aug 16 to Sep 13
Start indoors: Mar 10 to Mar 24Transplant outside: Apr 7 to Apr 21Sow outdoors: Apr 7 to Apr 21Plant for fall: Aug 2 to Aug 23
Start indoors: Mar 10 to Mar 24Transplant outside: Apr 21 to May 5Plant for fall: Jul 5 to Jul 26
Start indoors: Mar 10 to Mar 24Transplant outside: Apr 14 to Apr 28Plant for fall: Jul 5 to Jul 26
Start indoors: Mar 10 to Mar 24Transplant outside: Apr 21 to May 5Plant for fall: Jul 5 to Jul 26
Start indoors: Mar 24 to Apr 7Transplant outside: May 26 to Jun 9Sow outdoors: May 26 to Jun 9
Start indoors: Mar 24 to Apr 7Transplant outside: May 12 to May 26
Sow outdoors: Mar 24 to Apr 14Plant for fall: Jul 19 to Aug 9
Sow outdoors: Mar 24 to Apr 14Plant for fall: Aug 16 to Sep 6
Sow outdoors: Mar 31 to May 12Plant for fall: Aug 30 to Sep 20
Start indoors: Apr 7 to Apr 14Transplant outside: May 19 to May 26Sow outdoors: May 12 to May 26Plant for fall: Jul 26 to Aug 9
Start indoors: Apr 7 to Apr 14Sow outdoors: May 12 to May 26Plant for fall: Aug 2 to Aug 16
Start indoors: Apr 7 to Apr 14Sow outdoors: May 12 to May 26
Start indoors: Apr 7 to Apr 14Transplant outside: May 19 to Jun 2
Sow outdoors: Apr 14 to May 12Plant for fall: Jul 19 to Aug 2
Sow outdoors: Apr 14 to May 12Plant for fall: Aug 2 to Aug 16
Sow outdoors: Apr 14 to May 5
Sow outdoors: Apr 21 to May 19Plant for fall: Aug 2 to Aug 16
Sow outdoors: Apr 21 to May 12Plant for fall: Aug 16 to Sep 6
Sow outdoors: May 12 to Jun 2Plant for fall: Jul 26 to Aug 9
Sow outdoors: May 12 to May 26
Transplant outside: May 19 to Jun 9
Plant for fall: Sep 27 to Nov 1
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Saukville, WI
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 10 – Feb 24 | Apr 7 – Apr 21 | — | — |
| Peppers | Feb 24 – Mar 10 | May 19 – Jun 2 | — | — |
| Eggplant | Feb 24 – Mar 10 | May 19 – Jun 2 | — | — |
| Tomatoes | Mar 10 – Mar 24 | May 12 – May 26 | — | — |
| Lettuce | Mar 10 – Mar 24 | Apr 14 – Apr 28 | Apr 7 – May 12 | Aug 16 – Sep 13 |
| Kale | Mar 10 – Mar 24 | Apr 7 – Apr 21 | Apr 7 – Apr 21 | Aug 2 – Aug 23 |
| Broccoli | Mar 10 – Mar 24 | Apr 21 – May 5 | — | Jul 5 – Jul 26 |
| Cabbage | Mar 10 – Mar 24 | Apr 14 – Apr 28 | — | Jul 5 – Jul 26 |
| Cauliflower | Mar 10 – Mar 24 | Apr 21 – May 5 | — | Jul 5 – Jul 26 |
| Okra | Mar 24 – Apr 7 | May 26 – Jun 9 | May 26 – Jun 9 | — |
| Basil | Mar 24 – Apr 7 | May 12 – May 26 | — | — |
| Peas | — | — | Mar 24 – Apr 14 | Jul 19 – Aug 9 |
| Spinach | — | — | Mar 24 – Apr 14 | Aug 16 – Sep 6 |
| Radishes | — | — | Mar 31 – May 12 | Aug 30 – Sep 20 |
| Cucumbers | Apr 7 – Apr 14 | May 19 – May 26 | May 12 – May 26 | Jul 26 – Aug 9 |
| Zucchini & Summer Squash | Apr 7 – Apr 14 | — | May 12 – May 26 | Aug 2 – Aug 16 |
| Winter Squash & Pumpkins | Apr 7 – Apr 14 | — | May 12 – May 26 | — |
| Melons & Watermelon | Apr 7 – Apr 14 | May 19 – Jun 2 | — | — |
| Carrots | — | — | Apr 14 – May 12 | Jul 19 – Aug 2 |
| Beets | — | — | Apr 14 – May 12 | Aug 2 – Aug 16 |
| Potatoes | — | — | Apr 14 – May 5 | — |
| Swiss Chard | — | — | Apr 21 – May 19 | Aug 2 – Aug 16 |
| Cilantro | — | — | Apr 21 – May 12 | Aug 16 – Sep 6 |
| Green Beans | — | — | May 12 – Jun 2 | Jul 26 – Aug 9 |
| Sweet Corn | — | — | May 12 – May 26 | — |
| Sweet Potatoes | — | May 19 – Jun 9 | — | — |
| Garlic | — | — | — | Sep 27 – Nov 1 |
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 Saukville Wwtp, WI weather station, 2 km away (elevation 768 ft (234 m)).
Frost dates near Saukville
- Port Washington Apr 27 · Oct 22
- Grafton Apr 23 · Oct 24
- Fredonia May 5 · Oct 12
- Newburg May 4 · Oct 11
- Cedarburg Apr 23 · Oct 24
- Belgium May 5 · Oct 12
- Mequon Apr 23 · Oct 24
- Jackson Apr 30 · Oct 15
- West Bend May 1 · Oct 12
- Random Lake May 3 · Oct 16
Frequently asked questions
When is the last frost in Saukville, WI?
The median last spring frost in Saukville, WI is May 5. There is still about a 10% chance of frost after May 19, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Saukville, WI?
The median first fall frost is October 11, with about a 10% chance of frost before September 29.
How long is the growing season in Saukville, WI?
About 159 days between the median last spring frost and first fall frost.
What planting zone is Saukville, WI?
Saukville, WI is in USDA hardiness zone 5b.