When to plant in Shamokin Dam, PA
Planting dates worked out from Shamokin Dam's own frost records, not a generic zone chart.
Safe to plant out
May 16
1 year in 10 has a later frost
Average last frost
Apr 29
about a 50% chance of a later one
Average first fall frost
Oct 18
1 year in 10 by Oct 4
Frost-free days
171
median, 1991–2020
Station used: Selinsgrove Penn Valley Ap · 5.1 km away · station 135 m, town 147 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 21 – Apr 4 | May 16 – May 30 | Jul 10 |
| Sweet pepper | Mar 7 – Mar 21 | May 16 – May 30 | Jul 15 |
| Lettuce (leaf) | Feb 25 – Mar 4 | Apr 1 – Apr 15 | May 11 |
| Peas | — | Mar 25 – Apr 22 | May 19 |
| Bush beans | — | May 9 – May 30 | Jun 28 |
| Carrot | — | Apr 8 – May 20 | Jun 7 |
| Beet | — | Apr 4 – May 16 | May 24 |
| Potato | — | Apr 8 – Apr 29 | Jun 17 |
| Kale | Feb 18 – Mar 4 | Apr 1 – Apr 15 | May 14 |
| Broccoli | Feb 18 – Mar 4 | Apr 1 – Apr 22 | May 31 |
| Cucumber | Apr 18 – Apr 25 | May 16 – May 30 | Jul 5 |
| Summer squash and zucchini | Apr 18 – Apr 25 | May 16 – May 30 | Jun 30 |
| Winter squash | Apr 18 – Apr 25 | May 16 – May 30 | Aug 4 |
| Sweet corn | — | May 9 – May 30 | Jul 8 |
| Onion (from sets) | — | Apr 1 – Apr 22 | Jun 30 |
| Garlic | — | Oct 4 – Nov 1 (fall) | following summer |
| Spinach | — | Mar 25 – Apr 22 | May 2 |
| Basil | Apr 4 – Apr 18 | May 16 – May 30 | Jul 12 |
Shamokin Dam'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 | Apr 26 |
| 2000 | May 1 |
| 2001 | May 15 |
| 2002 | May 22 |
| 2003 | Apr 14 |
| 2004 | Apr 16 |
| 2005 | May 5 |
| 2006 | Apr 28 |
| 2007 | Apr 14 |
| 2008 | Apr 16 |
| 2009 | Apr 24 |
| 2010 | Mar 27 |
| 2011 | Apr 22 |
| 2012 | Apr 30 |
| 2013 | May 14 |
| 2014 | Apr 28 |
| 2015 | Apr 26 |
| 2016 | May 16 |
| 2017 | May 9 |
| 2018 | May 1 |
| 2019 | Apr 29 |
| 2020 | May 21 |
| 2021 | May 12 |
| 2022 | Apr 30 |
| 2023 | May 18 |
| 2024 | Apr 26 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1998 | 175 |
| 1999 | 163 |
| 2000 | 150 |
| 2001 | 144 |
| 2002 | 145 |
| 2003 | 171 |
| 2004 | 201 |
| 2005 | 175 |
| 2006 | 167 |
| 2007 | 196 |
| 2008 | 184 |
| 2009 | 172 |
| 2010 | 208 |
| 2011 | 188 |
| 2012 | 164 |
| 2013 | 162 |
| 2014 | 188 |
| 2015 | 174 |
| 2016 | 161 |
| 2017 | 170 |
| 2018 | 170 |
| 2019 | 172 |
| 2020 | 121 |
| 2021 | 173 |
| 2022 | 161 |
| 2023 | 165 |
| 2024 | 171 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1998 | 18.5 °C |
| 1999 | 18.4 °C |
| 2000 | 17.4 °C |
| 2001 | 17.6 °C |
| 2002 | 18.5 °C |
| 2003 | 17.4 °C |
| 2004 | 18.6 °C |
| 2005 | 19.0 °C |
| 2006 | 18.3 °C |
| 2007 | 18.2 °C |
| 2008 | 18.1 °C |
| 2009 | 18.3 °C |
| 2010 | 19.9 °C |
| 2011 | 19.1 °C |
| 2012 | 19.3 °C |
| 2013 | 18.4 °C |
| 2014 | 18.1 °C |
| 2015 | 19.0 °C |
| 2016 | 19.0 °C |
| 2017 | 18.5 °C |
| 2018 | 18.7 °C |
| 2019 | 19.0 °C |
| 2020 | 18.1 °C |
| 2021 | 18.6 °C |
| 2022 | 18.7 °C |
| 2023 | 18.3 °C |
| 2024 | 19.2 °C |
What this means for you: This station's record is too short to show a reliable trend yet.
Source: daily records from Selinsgrove Penn Valley Ap (NOAA GHCN-Daily). Years with too many missing days are left out.