When to plant in Roan Mountain, TN
Planting dates worked out from Roan Mountain's own frost records, not a generic zone chart.
Safe to plant out
Apr 20
1 year in 10 has a later frost
Average last frost
Apr 6
about a 50% chance of a later one
Average first fall frost
Nov 1
1 year in 10 by Oct 21
Frost-free days
208
median, 1991–2020
Station used: North Cove Pinnacle N. Carolin · 43.9 km away · station 780 m, town 786 m. How we match towns to stations
The nearest reliable station is 44 km away, so frost dates here may be off by a week or more. Check them against local experience.
This season
Plan your garden.
Planting dates for common crops
| Crop | Start indoors | Plant out or sow | Harvest from |
|---|---|---|---|
| Tomato | Feb 23 – Mar 9 | Apr 20 – May 4 | Jun 14 |
| Sweet pepper | Feb 9 – Feb 23 | Apr 20 – May 4 | Jun 19 |
| Lettuce (leaf) | Feb 2 – Feb 9 | Mar 9 – Mar 23 | Apr 18 |
| Peas | — | Feb 25 – Mar 25 | Apr 21 |
| Bush beans | — | Apr 13 – May 4 | Jun 2 |
| Carrot | — | Mar 16 – Apr 27 | May 15 |
| Beet | — | Mar 9 – Apr 20 | Apr 28 |
| Potato | — | Mar 16 – Apr 6 | May 25 |
| Kale | Jan 26 – Feb 9 | Mar 9 – Mar 23 | Apr 21 |
| Broccoli | Jan 26 – Feb 9 | Mar 9 – Mar 30 | May 8 |
| Cucumber | Mar 23 – Mar 30 | Apr 20 – May 4 | Jun 9 |
| Summer squash and zucchini | Mar 23 – Mar 30 | Apr 20 – May 4 | Jun 4 |
| Winter squash | Mar 23 – Mar 30 | Apr 20 – May 4 | Jul 9 |
| Sweet corn | — | Apr 13 – May 4 | Jun 12 |
| Onion (from sets) | — | Mar 9 – Mar 30 | Jun 7 |
| Garlic | — | Oct 18 – Nov 15 (fall) | following summer |
| Spinach | — | Feb 25 – Mar 25 | Apr 4 |
| Basil | Mar 9 – Mar 23 | Apr 20 – May 4 | Jun 16 |
Roan Mountain'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 |
|---|---|
| 2002 | Apr 7 |
| 2003 | Mar 30 |
| 2004 | Apr 5 |
| 2005 | Apr 24 |
| 2006 | Apr 9 |
| 2007 | Apr 10 |
| 2008 | Apr 29 |
| 2009 | Apr 8 |
| 2010 | Mar 27 |
| 2011 | Apr 1 |
| 2012 | Apr 12 |
| 2014 | Apr 17 |
| 2015 | Mar 29 |
| 2017 | Mar 23 |
| 2018 | Apr 17 |
| 2019 | Apr 2 |
| 2020 | Mar 7 |
| 2021 | Apr 22 |
| 2022 | Apr 10 |
| 2023 | Mar 29 |
| 2024 | Apr 6 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 2002 | 208 |
| 2003 | 223 |
| 2004 | 222 |
| 2005 | 206 |
| 2006 | 197 |
| 2008 | 175 |
| 2010 | 223 |
| 2011 | 211 |
| 2012 | 200 |
| 2014 | 197 |
| 2015 | 203 |
| 2017 | 219 |
| 2018 | 186 |
| 2019 | 211 |
| 2020 | 239 |
| 2021 | 196 |
| 2022 | 190 |
| 2023 | 216 |
| 2024 | 228 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 2002 | 21.1 °C |
| 2003 | 19.7 °C |
| 2004 | 20.2 °C |
| 2005 | 20.4 °C |
| 2006 | 20.5 °C |
| 2008 | 20.0 °C |
| 2010 | 21.9 °C |
| 2011 | 21.1 °C |
| 2014 | 20.1 °C |
| 2015 | 21.2 °C |
| 2017 | 20.2 °C |
| 2018 | 20.5 °C |
| 2019 | 21.3 °C |
| 2020 | 19.5 °C |
| 2021 | 19.9 °C |
| 2022 | 20.1 °C |
| 2023 | 19.6 °C |
| 2024 | 20.7 °C |
What this means for you: This station's record is too short to show a reliable trend yet.
Source: daily records from North Cove Pinnacle N. Carolin (NOAA GHCN-Daily). Years with too many missing days are left out.