When to plant in Boone, NC
Planting dates worked out from Boone's own frost records, not a generic zone chart.
Safe to plant out
May 20
1 year in 10 has a later frost
Average last frost
May 4
about a 50% chance of a later one
Average first fall frost
Oct 14
1 year in 10 by Oct 1
Frost-free days
158
median, 1991–2020
Station used: Boone 1 Se · 2.6 km away · station 945 m, town 981 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 25 – Apr 8 | May 20 – Jun 3 | Jul 14 |
| Sweet pepper | Mar 11 – Mar 25 | May 20 – Jun 3 | Jul 19 |
| Lettuce (leaf) | Mar 2 – Mar 9 | Apr 6 – Apr 20 | May 16 |
| Peas | — | Mar 23 – Apr 20 | May 17 |
| Bush beans | — | May 13 – Jun 3 | Jul 2 |
| Carrot | — | Apr 13 – May 25 | Jun 12 |
| Beet | — | Apr 6 – May 18 | May 26 |
| Potato | — | Apr 13 – May 4 | Jun 22 |
| Kale | Feb 23 – Mar 9 | Apr 6 – Apr 20 | May 19 |
| Broccoli | Feb 23 – Mar 9 | Apr 6 – Apr 27 | Jun 5 |
| Cucumber | Apr 22 – Apr 29 | May 20 – Jun 3 | Jul 9 |
| Summer squash and zucchini | Apr 22 – Apr 29 | May 20 – Jun 3 | Jul 4 |
| Winter squash | Apr 22 – Apr 29 | May 20 – Jun 3 | Aug 8 |
| Sweet corn | — | May 13 – Jun 3 | Jul 12 |
| Onion (from sets) | — | Apr 6 – Apr 27 | Jul 5 |
| Garlic | — | Sep 30 – Oct 28 (fall) | following summer |
| Spinach | — | Mar 23 – Apr 20 | Apr 30 |
| Basil | Apr 8 – Apr 22 | May 20 – Jun 3 | Jul 16 |
Boone'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 |
|---|---|
| 1981 | May 3 |
| 1982 | Apr 23 |
| 1983 | May 9 |
| 1984 | Apr 24 |
| 1985 | Apr 10 |
| 1986 | May 4 |
| 1987 | Apr 7 |
| 1988 | Apr 20 |
| 1989 | May 8 |
| 1990 | Apr 18 |
| 1991 | Apr 22 |
| 1992 | Apr 30 |
| 1993 | Apr 27 |
| 1994 | May 19 |
| 1995 | Apr 6 |
| 1996 | May 14 |
| 1999 | May 4 |
| 2000 | Apr 28 |
| 2001 | May 27 |
| 2002 | May 24 |
| 2003 | Apr 25 |
| 2004 | Apr 17 |
| 2005 | May 4 |
| 2006 | Apr 12 |
| 2007 | May 9 |
| 2008 | May 1 |
| 2009 | May 21 |
| 2010 | May 11 |
| 2011 | May 7 |
| 2012 | Apr 24 |
| 2013 | May 15 |
| 2014 | May 20 |
| 2015 | Apr 29 |
| 2016 | Apr 25 |
| 2017 | Apr 11 |
| 2018 | May 2 |
| 2019 | May 15 |
| 2020 | May 13 |
| 2021 | May 16 |
| 2022 | Apr 21 |
| 2023 | May 6 |
| 2024 | Apr 24 |
| 2025 | Apr 18 |
| 2026 | May 13 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1981 | 152 |
| 1982 | 176 |
| 1983 | 137 |
| 1984 | 195 |
| 1985 | 179 |
| 1986 | 167 |
| 1987 | 179 |
| 1988 | 168 |
| 1989 | 153 |
| 1990 | 183 |
| 1991 | 152 |
| 1992 | 152 |
| 1993 | 156 |
| 1994 | 160 |
| 1995 | 198 |
| 1999 | 169 |
| 2000 | 142 |
| 2001 | 132 |
| 2002 | 146 |
| 2003 | 158 |
| 2004 | 205 |
| 2005 | 175 |
| 2007 | 156 |
| 2008 | 170 |
| 2009 | 150 |
| 2010 | 156 |
| 2011 | 167 |
| 2012 | 171 |
| 2013 | 158 |
| 2014 | 152 |
| 2015 | 171 |
| 2016 | 169 |
| 2017 | 173 |
| 2018 | 169 |
| 2019 | 152 |
| 2020 | 142 |
| 2021 | 172 |
| 2022 | 159 |
| 2023 | 155 |
| 2024 | 169 |
| 2025 | 182 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1981 | 17.1 °C |
| 1982 | 16.6 °C |
| 1983 | 16.5 °C |
| 1984 | 16.0 °C |
| 1985 | 16.8 °C |
| 1986 | 17.5 °C |
| 1987 | 17.3 °C |
| 1988 | 16.6 °C |
| 1989 | 15.9 °C |
| 1990 | 16.5 °C |
| 1991 | 17.4 °C |
| 1992 | 15.1 °C |
| 1993 | 16.5 °C |
| 1994 | 15.8 °C |
| 1995 | 16.4 °C |
| 1996 | 15.9 °C |
| 1999 | 16.8 °C |
| 2000 | 16.8 °C |
| 2001 | 16.5 °C |
| 2002 | 17.3 °C |
| 2003 | 16.7 °C |
| 2004 | 17.1 °C |
| 2005 | 16.8 °C |
| 2007 | 16.6 °C |
| 2008 | 16.1 °C |
| 2009 | 16.4 °C |
| 2010 | 18.1 °C |
| 2011 | 17.0 °C |
| 2012 | 16.5 °C |
| 2013 | 15.8 °C |
| 2014 | 15.9 °C |
| 2015 | 16.7 °C |
| 2016 | 16.9 °C |
| 2017 | 16.2 °C |
| 2018 | 17.2 °C |
| 2019 | 17.1 °C |
| 2020 | 16.1 °C |
| 2021 | 16.1 °C |
| 2022 | 16.7 °C |
| 2023 | 16.1 °C |
| 2024 | 17.1 °C |
| 2025 | 17.1 °C |
| 2026 | 17.7 °C |
What this means for you: Since 1981, Boone's last spring frost has come about 2 days later per decade, on average. Year-to-year swings are large, so keep using the safe date rather than the trend.
Source: daily records from Boone 1 Se (NOAA GHCN-Daily). Years with too many missing days are left out.