Frost dates in Waukesha County, Wisconsin
The average last spring frost in Waukesha County falls Apr 26 to May 6 and the average first fall frost Oct 8 to Oct 18, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5b. Places: Big Bend, Brookfield, Butler, Delafield, Dousman, Eagle. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.
| ZIP | Place | Last spring frost | First fall frost | Zone |
|---|---|---|---|---|
| 53005 | Brookfield | Apr 26 | Oct 18 | 5b |
| 53007 | Butler | Apr 26 | Oct 18 | 5b |
| 53018 | Delafield | Apr 30 | Oct 12 | 5b |
| 53029 | Hartland | Apr 30 | Oct 12 | 5b |
| 53045 | Brookfield | Apr 30 | Oct 14 | 5b |
| 53046 | Lannon | May 6 | Oct 8 | 5b |
| 53051 | Menomonee Falls | May 6 | Oct 8 | 5b |
| 53058 | Nashotah | Apr 30 | Oct 12 | 5b |
| 53066 | Summit | Apr 30 | Oct 12 | 5b |
| 53069 | Okauchee Lake | Apr 30 | Oct 12 | 5b |
| 53072 | Pewaukee | Apr 30 | Oct 14 | 5b |
| 53089 | Sussex | Apr 30 | Oct 14 | 5b |
| 53103 | Big Bend | May 1 | Oct 13 | 5b |
| 53118 | Dousman | May 3 | Oct 9 | 5b |
| 53119 | Eagle | May 3 | Oct 9 | 5b |
| 53122 | Elm Grove | Apr 26 | Oct 18 | 5b |
| 53127 | May 1 | Oct 13 | 5b | |
| 53146 | New Berlin | May 1 | Oct 13 | 5b |
| 53149 | Mukwonago | May 1 | Oct 13 | 5b |
| 53150 | Muskego | May 3 | Oct 14 | 5b |
| 53151 | New Berlin | May 3 | Oct 14 | 5b |
| 53153 | North Prairie | May 3 | Oct 9 | 5b |
| 53183 | Wales | May 1 | Oct 13 | 5b |
| 53186 | Waukesha | Apr 30 | Oct 14 | 5b |
| 53188 | Waukesha | May 1 | Oct 13 | 5b |
| 53189 | Waukesha | May 1 | Oct 13 | 5b |
Nearby counties
Milwaukee County Washington County Jefferson County Racine County Ozaukee County Dodge County
All Wisconsin counties · Download Wisconsin frost dates (CSV)
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.