When to plant in Murphysboro, IL
Planting dates worked out from Murphysboro's own frost records, not a generic zone chart.
Safe to plant out
Apr 18
1 year in 10 has a later frost
Average last frost
Apr 8
about a 50% chance of a later one
Average first fall frost
Oct 19
1 year in 10 by Oct 5
Frost-free days
191
median, 1991–2020
Station used: Carbondale Sthrn Illinois Ap · 8.2 km away · station 122 m, town 128 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 | Feb 21 – Mar 7 | Apr 18 – May 2 | Jun 12 |
| Sweet pepper | Feb 7 – Feb 21 | Apr 18 – May 2 | Jun 17 |
| Lettuce (leaf) | Feb 4 – Feb 11 | Mar 11 – Mar 25 | Apr 20 |
| Peas | — | Mar 5 – Apr 2 | Apr 29 |
| Bush beans | — | Apr 11 – May 2 | May 31 |
| Carrot | — | Mar 18 – Apr 29 | May 17 |
| Beet | — | Mar 15 – Apr 26 | May 4 |
| Potato | — | Mar 18 – Apr 8 | May 27 |
| Kale | Jan 29 – Feb 12 | Mar 12 – Mar 26 | Apr 24 |
| Broccoli | Jan 28 – Feb 11 | Mar 11 – Apr 1 | May 10 |
| Cucumber | Mar 21 – Mar 28 | Apr 18 – May 2 | Jun 7 |
| Summer squash and zucchini | Mar 21 – Mar 28 | Apr 18 – May 2 | Jun 2 |
| Winter squash | Mar 21 – Mar 28 | Apr 18 – May 2 | Jul 7 |
| Sweet corn | — | Apr 11 – May 2 | Jun 10 |
| Onion (from sets) | — | Mar 11 – Apr 1 | Jun 9 |
| Garlic | — | Oct 5 – Nov 2 (fall) | following summer |
| Spinach | — | Mar 5 – Apr 2 | Apr 12 |
| Basil | Mar 7 – Mar 21 | Apr 18 – May 2 | Jun 14 |
Murphysboro'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 | Mar 27 |
| 2000 | Apr 22 |
| 2001 | Apr 18 |
| 2002 | Apr 5 |
| 2003 | Mar 31 |
| 2004 | Apr 5 |
| 2005 | Mar 21 |
| 2006 | Apr 9 |
| 2007 | Apr 13 |
| 2008 | Apr 15 |
| 2009 | Apr 9 |
| 2010 | Mar 26 |
| 2011 | Apr 1 |
| 2012 | Apr 12 |
| 2013 | Apr 25 |
| 2014 | Apr 17 |
| 2015 | Mar 29 |
| 2016 | Apr 9 |
| 2017 | Mar 19 |
| 2018 | Apr 17 |
| 2019 | Apr 15 |
| 2020 | Apr 18 |
| 2021 | Apr 22 |
| 2022 | Apr 3 |
| 2023 | Mar 29 |
| 2024 | Apr 6 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1999 | 191 |
| 2000 | 168 |
| 2001 | 181 |
| 2002 | 191 |
| 2003 | 184 |
| 2004 | 182 |
| 2005 | 218 |
| 2006 | 186 |
| 2007 | 198 |
| 2008 | 195 |
| 2009 | 191 |
| 2010 | 191 |
| 2011 | 210 |
| 2012 | 181 |
| 2013 | 181 |
| 2014 | 195 |
| 2015 | 201 |
| 2016 | 214 |
| 2017 | 223 |
| 2018 | 186 |
| 2019 | 198 |
| 2020 | 169 |
| 2021 | 194 |
| 2022 | 187 |
| 2023 | 214 |
| 2024 | 192 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1999 | 21.1 °C |
| 2000 | 20.5 °C |
| 2001 | 21.2 °C |
| 2002 | 21.9 °C |
| 2003 | 20.3 °C |
| 2004 | 21.4 °C |
| 2005 | 21.6 °C |
| 2006 | 21.2 °C |
| 2007 | 21.8 °C |
| 2008 | 20.7 °C |
| 2009 | 21.0 °C |
| 2010 | 23.1 °C |
| 2011 | 22.1 °C |
| 2012 | 22.3 °C |
| 2013 | 20.5 °C |
| 2014 | 20.8 °C |
| 2015 | 21.5 °C |
| 2016 | 21.8 °C |
| 2017 | 21.3 °C |
| 2018 | 21.8 °C |
| 2019 | 21.9 °C |
| 2020 | 20.9 °C |
| 2021 | 21.2 °C |
| 2022 | 21.5 °C |
| 2023 | 21.7 °C |
| 2024 | 22.2 °C |
What this means for you: This station's record is too short to show a reliable trend yet.
Source: daily records from Carbondale Sthrn Illinois Ap (NOAA GHCN-Daily). Years with too many missing days are left out.