When to plant in Greencastle, PA
Planting dates worked out from Greencastle's own frost records, not a generic zone chart.
Safe to plant out
Apr 23
1 year in 10 has a later frost
Average last frost
Apr 10
about a 50% chance of a later one
Average first fall frost
Nov 1
1 year in 10 by Oct 15
Frost-free days
203
median, 1991–2020
Station used: Hagerstown Rgnl Ap · 9.4 km away · station 209 m, town 178 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 26 – Mar 12 | Apr 23 – May 7 | Jun 17 |
| Sweet pepper | Feb 12 – Feb 26 | Apr 23 – May 7 | Jun 22 |
| Lettuce (leaf) | Feb 9 – Feb 16 | Mar 16 – Mar 30 | Apr 25 |
| Peas | — | Mar 16 – Apr 13 | May 10 |
| Bush beans | — | Apr 16 – May 7 | Jun 5 |
| Carrot | — | Mar 25 – May 6 | May 24 |
| Beet | — | Mar 25 – May 6 | May 14 |
| Potato | — | Mar 25 – Apr 15 | Jun 3 |
| Kale | Feb 9 – Feb 23 | Mar 23 – Apr 6 | May 5 |
| Broccoli | Feb 2 – Feb 16 | Mar 16 – Apr 6 | May 15 |
| Cucumber | Mar 26 – Apr 2 | Apr 23 – May 7 | Jun 12 |
| Summer squash and zucchini | Mar 26 – Apr 2 | Apr 23 – May 7 | Jun 7 |
| Winter squash | Mar 26 – Apr 2 | Apr 23 – May 7 | Jul 12 |
| Sweet corn | — | Apr 16 – May 7 | Jun 15 |
| Onion (from sets) | — | Mar 16 – Apr 6 | Jun 14 |
| Garlic | — | Oct 18 – Nov 15 (fall) | following summer |
| Spinach | — | Mar 16 – Apr 13 | Apr 23 |
| Basil | Mar 12 – Mar 26 | Apr 23 – May 7 | Jun 19 |
Greencastle'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 13 |
| 2001 | Apr 19 |
| 2002 | Apr 23 |
| 2003 | Apr 8 |
| 2004 | Apr 28 |
| 2005 | Apr 16 |
| 2006 | Apr 9 |
| 2007 | Apr 14 |
| 2008 | Apr 3 |
| 2009 | Apr 13 |
| 2010 | Mar 27 |
| 2011 | Apr 2 |
| 2012 | Mar 27 |
| 2013 | Apr 6 |
| 2014 | Apr 17 |
| 2015 | Apr 1 |
| 2016 | Apr 10 |
| 2017 | Mar 23 |
| 2018 | Apr 18 |
| 2019 | Apr 3 |
| 2020 | May 9 |
| 2021 | Apr 3 |
| 2022 | Apr 4 |
| 2023 | Apr 9 |
| 2024 | Mar 25 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1999 | 234 |
| 2000 | 206 |
| 2001 | 172 |
| 2002 | 191 |
| 2003 | 198 |
| 2004 | 194 |
| 2005 | 214 |
| 2006 | 188 |
| 2007 | 197 |
| 2008 | 199 |
| 2009 | 207 |
| 2010 | 219 |
| 2011 | 209 |
| 2012 | 199 |
| 2013 | 202 |
| 2014 | 204 |
| 2015 | 199 |
| 2016 | 215 |
| 2017 | 231 |
| 2018 | 205 |
| 2019 | 212 |
| 2020 | 192 |
| 2021 | 213 |
| 2022 | 223 |
| 2023 | 206 |
| 2024 | 232 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1999 | 19.6 °C |
| 2000 | 18.6 °C |
| 2001 | 19.2 °C |
| 2002 | 20.3 °C |
| 2003 | 18.6 °C |
| 2004 | 20.0 °C |
| 2005 | 20.0 °C |
| 2006 | 19.6 °C |
| 2007 | 19.9 °C |
| 2008 | 19.6 °C |
| 2009 | 20.8 °C |
| 2010 | 22.4 °C |
| 2011 | 20.8 °C |
| 2012 | 20.6 °C |
| 2013 | 19.8 °C |
| 2014 | 19.4 °C |
| 2015 | 21.2 °C |
| 2016 | 21.2 °C |
| 2017 | 20.9 °C |
| 2018 | 21.1 °C |
| 2019 | 21.7 °C |
| 2020 | 20.3 °C |
| 2021 | 20.9 °C |
| 2022 | 20.4 °C |
| 2023 | 20.4 °C |
| 2024 | 21.4 °C |
What this means for you: This station's record is too short to show a reliable trend yet.
Source: daily records from Hagerstown Rgnl Ap (NOAA GHCN-Daily). Years with too many missing days are left out.