When to plant in North Prairie, WI
Planting dates worked out from North Prairie's own frost records, not a generic zone chart.
Last spring frost
- Early · riskyApr 179 years in 10 still get a later frost
- TypicalMay 3about half of years get a later frost
- Safe to plant outMay 171 year in 10 gets a later frost
Hardy crops like peas and spinach are timed from the typical date. Wait for the safe date before planting out tomatoes, peppers and squash.
First fall frost
- EarlySep 261 year in 10 has frost by then
- TypicalOct 8about half of years have had frost
- LateOct 249 years in 10 have had frost by then
A typical year has 154 frost-free days. Plan for tender crops to be ripe by the early date.
Station used: Sullivan 3 Se - Wfo Mkx · 12.3 km away · station 283 m, town 289 m. How we match towns to stations
This season
Plan your garden.
Planting dates for common crops
| Crop | Start indoors | Plant out or sow | Harvest from |
|---|---|---|---|
| Tomato | Mar 22 – Apr 5 | May 17 – May 31 | Jul 11 |
| Sweet pepper | Mar 8 – Mar 22 | May 17 – May 31 | Jul 16 |
| Lettuce (leaf) | Mar 2 – Mar 9 | Apr 6 – Apr 20 | May 16 |
| Peas | — | Apr 6 – May 4 | May 31 |
| Bush beans | — | May 10 – May 31 | Jun 29 |
| Carrot | — | Apr 17 – May 29 | Jun 16 |
| Beet | — | Apr 17 – May 29 | Jun 6 |
| Potato | — | Apr 17 – May 8 | Jun 26 |
| Kale | Mar 2 – Mar 16 | Apr 13 – Apr 27 | May 26 |
| Broccoli | Feb 23 – Mar 9 | Apr 6 – Apr 27 | Jun 5 |
| Cucumber | Apr 19 – Apr 26 | May 17 – May 31 | Jul 6 |
| Summer squash and zucchini | Apr 19 – Apr 26 | May 17 – May 31 | Jul 1 |
| Winter squash | Apr 19 – Apr 26 | May 17 – May 31 | Aug 5 |
| Sweet corn | — | May 10 – May 31 | Jul 9 |
| Onion (from sets) | — | Apr 6 – Apr 27 | Jul 5 |
| Garlic | — | Sep 24 – Oct 22 (fall) | following summer |
| Spinach | — | Apr 6 – May 4 | May 14 |
| Basil | Apr 5 – Apr 19 | May 17 – May 31 | Jul 13 |
North Prairie's weather over time
How the growing season has shifted here, year by year, from the station's own records.
Each year's last spring frostLong-term trend
See the data as a table
| Year | Last spring frost |
|---|---|
| 1995 | Apr 13 |
| 1996 | May 14 |
| 1997 | Apr 22 |
| 1998 | Apr 28 |
| 1999 | Apr 25 |
| 2000 | Apr 13 |
| 2001 | Apr 19 |
| 2002 | May 21 |
| 2003 | May 3 |
| 2004 | May 4 |
| 2005 | May 4 |
| 2006 | May 12 |
| 2007 | Apr 16 |
| 2008 | May 19 |
| 2009 | May 17 |
| 2010 | May 9 |
| 2011 | May 4 |
| 2014 | May 17 |
| 2015 | Apr 27 |
| 2016 | May 15 |
| 2017 | May 8 |
| 2018 | Apr 29 |
| 2019 | Apr 28 |
| 2020 | May 12 |
| 2021 | May 12 |
| 2022 | May 4 |
| 2023 | May 3 |
| 2024 | Apr 25 |
| 2025 | May 9 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1995 | 162 |
| 1996 | 141 |
| 1997 | 177 |
| 1998 | 157 |
| 1999 | 161 |
| 2000 | 176 |
| 2001 | 169 |
| 2002 | 144 |
| 2003 | 150 |
| 2004 | 150 |
| 2005 | 174 |
| 2006 | 152 |
| 2007 | 151 |
| 2008 | 137 |
| 2009 | 145 |
| 2010 | 147 |
| 2011 | 133 |
| 2014 | 140 |
| 2015 | 171 |
| 2016 | 177 |
| 2017 | 173 |
| 2018 | 165 |
| 2019 | 166 |
| 2020 | 142 |
| 2021 | 162 |
| 2022 | 155 |
| 2023 | 158 |
| 2024 | 173 |
| 2025 | 167 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1995 | 18.2 °C |
| 1996 | 16.4 °C |
| 1997 | 16.5 °C |
| 1998 | 19.0 °C |
| 1999 | 17.3 °C |
| 2000 | 16.5 °C |
| 2001 | 17.3 °C |
| 2002 | 17.2 °C |
| 2003 | 16.3 °C |
| 2004 | 16.2 °C |
| 2005 | 17.9 °C |
| 2006 | 17.2 °C |
| 2007 | 17.4 °C |
| 2008 | 16.5 °C |
| 2009 | 16.1 °C |
| 2010 | 18.1 °C |
| 2011 | 16.7 °C |
| 2014 | 16.6 °C |
| 2015 | 17.1 °C |
| 2016 | 17.6 °C |
| 2017 | 16.9 °C |
| 2018 | 16.9 °C |
| 2019 | 16.5 °C |
| 2020 | 16.4 °C |
| 2021 | 17.9 °C |
| 2022 | 16.6 °C |
| 2023 | 17.1 °C |
| 2024 | 17.6 °C |
| 2025 | 17.0 °C |
What this means for you: This station's record is too short to show a reliable trend yet.
Source: daily records from Sullivan 3 Se - Wfo Mkx (NOAA GHCN-Daily). Years with too many missing days are left out.