When to plant in Greenville, ME
Planting dates worked out from Greenville's own frost records, not a generic zone chart.
Safe to plant out
May 19
1 year in 10 has a later frost
Average last frost
May 10
about a 50% chance of a later one
Average first fall frost
Oct 10
1 year in 10 by Sep 26
Frost-free days
156
median, 1991–2020
Station used: Greenville Maine Forestry Svc · 0.5 km away · station 311 m, town 318 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 30 – Apr 13 | May 25 – Jun 8 | Jul 19 |
| Sweet pepper | Mar 16 – Mar 30 | May 25 – Jun 8 | Jul 24 |
| Lettuce (leaf) | Mar 20 – Mar 27 | Apr 24 – May 8 | Jun 3 |
| Peas | — | Apr 24 – May 22 | Jun 18 |
| Bush beans | — | May 17 – Jun 7 | Jul 6 |
| Carrot | — | May 4 – Jun 15 | Jul 3 |
| Beet | — | May 4 – Jun 15 | Jun 23 |
| Potato | — | May 4 – May 25 | Jul 13 |
| Kale | Mar 20 – Apr 3 | May 1 – May 15 | Jun 13 |
| Broccoli | Mar 13 – Mar 27 | Apr 24 – May 15 | Jun 23 |
| Cucumber | Apr 27 – May 4 | May 25 – Jun 8 | Jul 14 |
| Summer squash and zucchini | Apr 27 – May 4 | May 25 – Jun 8 | Jul 9 |
| Winter squash | Apr 27 – May 4 | May 25 – Jun 8 | Aug 13 |
| Sweet corn | — | May 17 – Jun 7 | Jul 16 |
| Onion (from sets) | — | Apr 24 – May 15 | Jul 23 |
| Garlic | — | Sep 22 – Oct 20 (fall) | following summer |
| Spinach | — | Apr 24 – May 22 | Jun 1 |
| Basil | Apr 13 – Apr 27 | May 25 – Jun 8 | Jul 21 |
Greenville'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 |
|---|---|
| 1998 | Apr 29 |
| 1999 | May 15 |
| 2000 | May 20 |
| 2001 | May 7 |
| 2002 | May 15 |
| 2003 | May 4 |
| 2004 | Apr 29 |
| 2005 | May 14 |
| 2006 | Apr 29 |
| 2007 | May 17 |
| 2008 | May 2 |
| 2009 | May 19 |
| 2010 | May 11 |
| 2011 | May 1 |
| 2012 | Apr 30 |
| 2013 | May 15 |
| 2014 | May 13 |
| 2015 | May 23 |
| 2016 | May 16 |
| 2017 | May 9 |
| 2018 | May 12 |
| 2019 | May 9 |
| 2020 | May 13 |
| 2021 | May 7 |
| 2022 | May 8 |
| 2023 | May 18 |
| 2024 | Apr 27 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1998 | 159 |
| 1999 | 144 |
| 2001 | 145 |
| 2002 | 145 |
| 2003 | 154 |
| 2004 | 158 |
| 2005 | 160 |
| 2006 | 166 |
| 2007 | 161 |
| 2008 | 168 |
| 2009 | 129 |
| 2010 | 153 |
| 2011 | 157 |
| 2012 | 161 |
| 2013 | 161 |
| 2014 | 128 |
| 2015 | 139 |
| 2016 | 150 |
| 2017 | 160 |
| 2018 | 134 |
| 2019 | 163 |
| 2020 | 148 |
| 2021 | 179 |
| 2022 | 147 |
| 2023 | 158 |
| 2024 | 183 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1998 | 14.0 °C |
| 1999 | 14.6 °C |
| 2000 | 12.1 °C |
| 2001 | 14.0 °C |
| 2002 | 13.3 °C |
| 2003 | 13.3 °C |
| 2004 | 14.4 °C |
| 2005 | 13.8 °C |
| 2006 | 14.2 °C |
| 2007 | 13.2 °C |
| 2008 | 13.7 °C |
| 2009 | 13.3 °C |
| 2010 | 14.7 °C |
| 2011 | 13.6 °C |
| 2012 | 14.1 °C |
| 2013 | 13.7 °C |
| 2014 | 13.5 °C |
| 2015 | 13.8 °C |
| 2016 | 13.6 °C |
| 2017 | 13.4 °C |
| 2018 | 13.9 °C |
| 2019 | 13.1 °C |
| 2020 | 14.1 °C |
| 2021 | 14.8 °C |
| 2022 | 14.4 °C |
| 2023 | 14.6 °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 Greenville Maine Forestry Svc (NOAA GHCN-Daily). Years with too many missing days are left out.