When to plant in Lebanon, TN
Planting dates worked out from Lebanon's own frost records, not a generic zone chart.
Safe to plant out
Apr 25
1 year in 10 has a later frost
Average last frost
Apr 12
about a 50% chance of a later one
Average first fall frost
Oct 24
1 year in 10 by Oct 10
Frost-free days
198
median, 1991–2020
Station used: Lebanon · 3.4 km away · station 160 m, town 161 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 | Feb 28 – Mar 14 | Apr 25 – May 9 | Jun 19 |
| Sweet pepper | Feb 14 – Feb 28 | Apr 25 – May 9 | Jun 24 |
| Lettuce (leaf) | Feb 8 – Feb 15 | Mar 15 – Mar 29 | Apr 24 |
| Peas | — | Mar 1 – Mar 29 | Apr 25 |
| Bush beans | — | Apr 18 – May 9 | Jun 7 |
| Carrot | — | Mar 22 – May 3 | May 21 |
| Beet | — | Mar 15 – Apr 26 | May 4 |
| Potato | — | Mar 22 – Apr 12 | May 31 |
| Kale | Feb 1 – Feb 15 | Mar 15 – Mar 29 | Apr 27 |
| Broccoli | Feb 1 – Feb 15 | Mar 15 – Apr 5 | May 14 |
| Cucumber | Mar 28 – Apr 4 | Apr 25 – May 9 | Jun 14 |
| Summer squash and zucchini | Mar 28 – Apr 4 | Apr 25 – May 9 | Jun 9 |
| Winter squash | Mar 28 – Apr 4 | Apr 25 – May 9 | Jul 14 |
| Sweet corn | — | Apr 18 – May 9 | Jun 17 |
| Onion (from sets) | — | Mar 15 – Apr 5 | Jun 13 |
| Garlic | — | Oct 10 – Nov 7 (fall) | following summer |
| Spinach | — | Mar 1 – Mar 29 | Apr 8 |
| Basil | Mar 14 – Mar 28 | Apr 25 – May 9 | Jun 21 |
Lebanon'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 |
|---|---|
| 1910 | Apr 25 |
| 1911 | Apr 10 |
| 1912 | Mar 25 |
| 1913 | Mar 29 |
| 1914 | Apr 21 |
| 1915 | Apr 4 |
| 1916 | Apr 10 |
| 1917 | Apr 15 |
| 1918 | Apr 11 |
| 1919 | Apr 27 |
| 1920 | Apr 14 |
| 1921 | Apr 17 |
| 1922 | Apr 2 |
| 1923 | Apr 9 |
| 1924 | Apr 3 |
| 1930 | Mar 31 |
| 1931 | Apr 27 |
| 1932 | Apr 15 |
| 1933 | Apr 12 |
| 1962 | Apr 16 |
| 1963 | May 2 |
| 1964 | Apr 10 |
| 1965 | Mar 27 |
| 1966 | Apr 15 |
| 1967 | Mar 23 |
| 1968 | Mar 26 |
| 1969 | Apr 30 |
| 1970 | Apr 15 |
| 1971 | May 4 |
| 1972 | Apr 26 |
| 1973 | Apr 13 |
| 1975 | Apr 21 |
| 1976 | May 4 |
| 1977 | Apr 9 |
| 1978 | May 2 |
| 1979 | Apr 7 |
| 1980 | Apr 16 |
| 1981 | Mar 25 |
| 1982 | Apr 23 |
| 1983 | Apr 26 |
| 1984 | Apr 8 |
| 1985 | Apr 11 |
| 1986 | May 4 |
| 1987 | Apr 10 |
| 1988 | Apr 20 |
| 1989 | Apr 14 |
| 1990 | Apr 13 |
| 1991 | Mar 31 |
| 1992 | Apr 29 |
| 1993 | Apr 23 |
| 1994 | Apr 9 |
| 1995 | Apr 7 |
| 1996 | Apr 27 |
| 1997 | May 17 |
| 1998 | Apr 13 |
| 1999 | Apr 14 |
| 2000 | Apr 10 |
| 2001 | Apr 19 |
| 2002 | Apr 8 |
| 2003 | Apr 1 |
| 2004 | Apr 5 |
| 2007 | Apr 11 |
| 2008 | Apr 21 |
| 2009 | Mar 31 |
| 2011 | Mar 25 |
| 2012 | Apr 12 |
| 2013 | Mar 29 |
| 2014 | Apr 16 |
| 2017 | Mar 20 |
| 2018 | Apr 21 |
| 2019 | Apr 2 |
| 2020 | Apr 16 |
| 2024 | Mar 20 |
| 2025 | Apr 10 |
| 2026 | Mar 18 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1911 | 195 |
| 1912 | 212 |
| 1913 | 205 |
| 1914 | 188 |
| 1915 | 187 |
| 1916 | 194 |
| 1917 | 176 |
| 1918 | 204 |
| 1919 | 191 |
| 1920 | 197 |
| 1921 | 178 |
| 1922 | 193 |
| 1924 | 180 |
| 1931 | 173 |
| 1932 | 174 |
| 1933 | 196 |
| 1962 | 190 |
| 1963 | 180 |
| 1964 | 178 |
| 1965 | 199 |
| 1966 | 184 |
| 1967 | 201 |
| 1968 | 192 |
| 1969 | 170 |
| 1970 | 184 |
| 1971 | 183 |
| 1972 | 176 |
| 1973 | 186 |
| 1975 | 164 |
| 1976 | 166 |
| 1977 | 185 |
| 1978 | 158 |
| 1979 | 189 |
| 1980 | 172 |
| 1981 | 191 |
| 1982 | 181 |
| 1983 | 192 |
| 1984 | 176 |
| 1985 | 210 |
| 1986 | 192 |
| 1987 | 176 |
| 1988 | 170 |
| 1989 | 190 |
| 1990 | 188 |
| 1991 | 189 |
| 1992 | 172 |
| 1993 | 182 |
| 1994 | 199 |
| 1995 | 197 |
| 1996 | 166 |
| 1997 | 137 |
| 1998 | 192 |
| 1999 | 192 |
| 2000 | 181 |
| 2001 | 181 |
| 2002 | 207 |
| 2003 | 226 |
| 2007 | 204 |
| 2008 | 190 |
| 2009 | 200 |
| 2011 | 217 |
| 2012 | 201 |
| 2013 | 209 |
| 2014 | 199 |
| 2017 | 223 |
| 2018 | 182 |
| 2019 | 212 |
| 2020 | 199 |
| 2024 | 251 |
| 2025 | 213 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1911 | 23.1 °C |
| 1912 | 22.0 °C |
| 1913 | 22.8 °C |
| 1914 | 22.7 °C |
| 1915 | 22.3 °C |
| 1916 | 21.7 °C |
| 1917 | 20.8 °C |
| 1918 | 21.9 °C |
| 1919 | 22.3 °C |
| 1920 | 21.3 °C |
| 1921 | 23.3 °C |
| 1922 | 22.7 °C |
| 1923 | 22.0 °C |
| 1924 | 21.8 °C |
| 1930 | 23.2 °C |
| 1931 | 22.8 °C |
| 1932 | 22.9 °C |
| 1933 | 23.4 °C |
| 1962 | 22.0 °C |
| 1963 | 21.7 °C |
| 1964 | 22.2 °C |
| 1965 | 22.4 °C |
| 1966 | 21.1 °C |
| 1967 | 20.7 °C |
| 1968 | 21.9 °C |
| 1969 | 22.3 °C |
| 1970 | 22.4 °C |
| 1971 | 21.6 °C |
| 1972 | 21.2 °C |
| 1973 | 20.9 °C |
| 1974 | 20.5 °C |
| 1975 | 20.9 °C |
| 1976 | 19.8 °C |
| 1977 | 22.4 °C |
| 1978 | 21.9 °C |
| 1979 | 20.3 °C |
| 1980 | 21.8 °C |
| 1981 | 21.1 °C |
| 1982 | 20.6 °C |
| 1983 | 20.8 °C |
| 1984 | 20.5 °C |
| 1985 | 21.5 °C |
| 1986 | 22.5 °C |
| 1987 | 22.1 °C |
| 1988 | 21.6 °C |
| 1989 | 20.8 °C |
| 1990 | 21.3 °C |
| 1991 | 22.6 °C |
| 1992 | 20.4 °C |
| 1993 | 21.6 °C |
| 1994 | 20.9 °C |
| 1995 | 21.8 °C |
| 1996 | 21.0 °C |
| 1997 | 19.3 °C |
| 1998 | 21.9 °C |
| 1999 | 21.1 °C |
| 2000 | 21.9 °C |
| 2001 | 22.1 °C |
| 2002 | 22.6 °C |
| 2003 | 21.4 °C |
| 2005 | 22.2 °C |
| 2007 | 22.7 °C |
| 2008 | 22.0 °C |
| 2009 | 21.8 °C |
| 2011 | 22.9 °C |
| 2012 | 22.6 °C |
| 2013 | 21.4 °C |
| 2014 | 21.8 °C |
| 2017 | 22.4 °C |
| 2018 | 23.1 °C |
| 2019 | 23.1 °C |
| 2020 | 21.5 °C |
| 2024 | 23.0 °C |
| 2025 | 23.2 °C |
| 2026 | 23.9 °C |
What this means for you: Since 1910, Lebanon's last spring frost has stayed at about the same time of year. The frost-free season has grown by about 1 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.
Source: daily records from Lebanon (NOAA GHCN-Daily). Years with too many missing days are left out.