When to plant in Trenton, ME
Planting dates worked out from Trenton's own frost records, not a generic zone chart.
Safe to plant out
May 13
1 year in 10 has a later frost
Average last frost
Apr 27
about a 50% chance of a later one
Average first fall frost
Oct 24
1 year in 10 by Oct 15
Frost-free days
183
median, 1991–2020
Station used: Mcfarland Hill Maine · 11.1 km away · station 129 m, town 18 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 24 – Apr 7 | May 19 – Jun 2 | Jul 13 |
| Sweet pepper | Mar 10 – Mar 24 | May 19 – Jun 2 | Jul 18 |
| Lettuce (leaf) | Mar 11 – Mar 18 | Apr 15 – Apr 29 | May 25 |
| Peas | — | Apr 15 – May 13 | Jun 9 |
| Bush beans | — | May 13 – Jun 3 | Jul 2 |
| Carrot | — | Apr 25 – Jun 6 | Jun 24 |
| Beet | — | Apr 25 – Jun 6 | Jun 14 |
| Potato | — | Apr 25 – May 16 | Jul 4 |
| Kale | Mar 11 – Mar 25 | Apr 22 – May 6 | Jun 4 |
| Broccoli | Mar 4 – Mar 18 | Apr 15 – May 6 | Jun 14 |
| Cucumber | Apr 21 – Apr 28 | May 19 – Jun 2 | Jul 8 |
| Summer squash and zucchini | Apr 21 – Apr 28 | May 19 – Jun 2 | Jul 3 |
| Winter squash | Apr 21 – Apr 28 | May 19 – Jun 2 | Aug 7 |
| Sweet corn | — | May 13 – Jun 3 | Jul 12 |
| Onion (from sets) | — | Apr 15 – May 6 | Jul 14 |
| Garlic | — | Oct 2 – Oct 30 (fall) | following summer |
| Spinach | — | Apr 15 – May 13 | May 23 |
| Basil | Apr 7 – Apr 21 | May 19 – Jun 2 | Jul 15 |
Trenton'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 |
|---|---|
| 2003 | Apr 18 |
| 2004 | May 8 |
| 2005 | May 13 |
| 2007 | Apr 20 |
| 2008 | May 16 |
| 2009 | Apr 17 |
| 2010 | Apr 19 |
| 2011 | Apr 22 |
| 2012 | Apr 30 |
| 2013 | Apr 23 |
| 2014 | Apr 19 |
| 2015 | Apr 25 |
| 2016 | May 9 |
| 2017 | Apr 18 |
| 2018 | Apr 16 |
| 2019 | Apr 29 |
| 2020 | May 13 |
| 2021 | Apr 23 |
| 2022 | Apr 24 |
| 2023 | May 18 |
| 2024 | Apr 26 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 2003 | 184 |
| 2004 | 177 |
| 2005 | 166 |
| 2007 | 191 |
| 2008 | 155 |
| 2009 | 179 |
| 2010 | 194 |
| 2011 | 188 |
| 2012 | 164 |
| 2013 | 185 |
| 2014 | 183 |
| 2015 | 174 |
| 2016 | 158 |
| 2017 | 202 |
| 2018 | 184 |
| 2019 | 186 |
| 2020 | 166 |
| 2021 | 194 |
| 2022 | 198 |
| 2023 | 164 |
| 2024 | 184 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 2003 | 14.9 °C |
| 2004 | 14.1 °C |
| 2005 | 14.7 °C |
| 2006 | 15.4 °C |
| 2007 | 14.8 °C |
| 2008 | 15.0 °C |
| 2010 | 16.6 °C |
| 2011 | 15.2 °C |
| 2012 | 15.8 °C |
| 2013 | 15.2 °C |
| 2014 | 15.2 °C |
| 2015 | 15.7 °C |
| 2016 | 15.7 °C |
| 2017 | 15.5 °C |
| 2018 | 15.8 °C |
| 2019 | 14.7 °C |
| 2020 | 15.3 °C |
| 2021 | 16.2 °C |
| 2022 | 16.0 °C |
| 2023 | 15.6 °C |
| 2024 | 16.2 °C |
What this means for you: This station's record is too short to show a reliable trend yet.
Source: daily records from Mcfarland Hill Maine (NOAA GHCN-Daily). Years with too many missing days are left out.