When to plant in Ashland, WI
Planting dates worked out from Ashland's own frost records, not a generic zone chart.
Safe to plant out
Jun 13
1 year in 10 has a later frost
Average last frost
May 29
about a 50% chance of a later one
Average first fall frost
Sep 25
1 year in 10 by Sep 14
Frost-free days
121
median, 1991–2020
Station used: Ashland Kennedy Mem Ap · 5.7 km away · station 250 m, town 197 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 | Apr 18 – May 2 | Jun 13 – Jun 27 | Aug 7 |
| Sweet pepper | Apr 4 – Apr 18 | Jun 13 – Jun 27 | Aug 12 |
| Lettuce (leaf) | Mar 27 – Apr 3 | May 1 – May 15 | Jun 10 |
| Peas | — | Apr 23 – May 21 | Jun 17 |
| Bush beans | — | Jun 6 – Jun 27 | Jul 26 |
| Carrot | — | May 8 – Jun 19 | Jul 7 |
| Beet | — | May 5 – Jun 16 | Jun 24 |
| Potato | — | May 8 – May 29 | Jul 17 |
| Kale | Mar 20 – Apr 3 | May 1 – May 15 | Jun 13 |
| Broccoli | Mar 20 – Apr 3 | May 1 – May 22 | Jun 30 |
| Cucumber | May 16 – May 23 | Jun 13 – Jun 27 | Aug 2 |
| Summer squash and zucchini | May 16 – May 23 | Jun 13 – Jun 27 | Jul 28 |
| Winter squash | May 16 – May 23 | Jun 13 – Jun 27 | Sep 1 |
| Sweet corn | — | Jun 6 – Jun 27 | Aug 5 |
| Onion (from sets) | — | May 1 – May 22 | Jul 30 |
| Garlic | — | Sep 11 – Oct 9 (fall) | following summer |
| Spinach | — | Apr 23 – May 21 | May 31 |
| Basil | May 2 – May 16 | Jun 13 – Jun 27 | Aug 9 |
Ashland'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 |
|---|---|
| 1999 | May 14 |
| 2000 | Jun 5 |
| 2001 | May 30 |
| 2002 | May 21 |
| 2003 | May 25 |
| 2004 | May 28 |
| 2005 | May 16 |
| 2006 | Jun 10 |
| 2007 | May 28 |
| 2008 | May 28 |
| 2009 | Jun 6 |
| 2010 | May 15 |
| 2011 | May 27 |
| 2012 | Jun 1 |
| 2013 | Jun 18 |
| 2014 | May 28 |
| 2015 | Jun 1 |
| 2016 | May 18 |
| 2017 | May 20 |
| 2018 | May 20 |
| 2019 | Jun 13 |
| 2020 | Jun 14 |
| 2021 | May 29 |
| 2022 | May 7 |
| 2023 | Jun 8 |
| 2024 | May 10 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1999 | 128 |
| 2000 | 109 |
| 2001 | 106 |
| 2002 | 133 |
| 2003 | 125 |
| 2004 | 123 |
| 2005 | 143 |
| 2006 | 90 |
| 2007 | 108 |
| 2008 | 127 |
| 2009 | 114 |
| 2010 | 132 |
| 2011 | 110 |
| 2012 | 108 |
| 2013 | 95 |
| 2014 | 127 |
| 2015 | 119 |
| 2016 | 143 |
| 2017 | 142 |
| 2018 | 131 |
| 2019 | 106 |
| 2020 | 86 |
| 2021 | 141 |
| 2022 | 137 |
| 2023 | 97 |
| 2024 | 148 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1999 | 14.4 °C |
| 2000 | 12.9 °C |
| 2001 | 14.3 °C |
| 2002 | 14.2 °C |
| 2003 | 13.7 °C |
| 2004 | 12.5 °C |
| 2005 | 14.3 °C |
| 2006 | 15.0 °C |
| 2007 | 14.6 °C |
| 2008 | 13.2 °C |
| 2009 | 13.3 °C |
| 2010 | 14.8 °C |
| 2011 | 14.1 °C |
| 2012 | 15.2 °C |
| 2013 | 13.2 °C |
| 2014 | 12.8 °C |
| 2015 | 14.5 °C |
| 2016 | 14.5 °C |
| 2017 | 13.5 °C |
| 2018 | 14.0 °C |
| 2019 | 13.7 °C |
| 2020 | 14.0 °C |
| 2021 | 14.9 °C |
| 2022 | 13.8 °C |
| 2023 | 14.0 °C |
| 2024 | 15.2 °C |
What this means for you: This station's record is too short to show a reliable trend yet.
Source: daily records from Ashland Kennedy Mem Ap (NOAA GHCN-Daily). Years with too many missing days are left out.