When to plant in Ryland Heights, KY
Planting dates worked out from Ryland Heights's own frost records, not a generic zone chart.
Last spring frost
- Early · riskyApr 29 years in 10 still get a later frost
- TypicalApr 22about half of years get a later frost
- Safe to plant outMay 131 year in 10 gets a later frost
Hardy crops like peas and spinach are timed from the typical date. Wait for the safe date before planting out tomatoes, peppers and squash.
First fall frost
- EarlyOct 71 year in 10 has frost by then
- TypicalOct 21about half of years have had frost
- LateNov 19 years in 10 have had frost by then
A typical year has 178 frost-free days. Plan for tender crops to be ripe by the early date.
Station used: Cincinnati/northern Kentucky I · 20.5 km away · station 262 m, town 264 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 18 – Apr 1 | May 13 – May 27 | Jul 7 |
| Sweet pepper | Mar 4 – Mar 18 | May 13 – May 27 | Jul 12 |
| Lettuce (leaf) | Feb 18 – Feb 25 | Mar 25 – Apr 8 | May 4 |
| Peas | — | Mar 14 – Apr 11 | May 8 |
| Bush beans | — | May 6 – May 27 | Jun 25 |
| Carrot | — | Apr 1 – May 13 | May 31 |
| Beet | — | Mar 25 – May 6 | May 14 |
| Potato | — | Apr 1 – Apr 22 | Jun 10 |
| Kale | Feb 11 – Feb 25 | Mar 25 – Apr 8 | May 7 |
| Broccoli | Feb 11 – Feb 25 | Mar 25 – Apr 15 | May 24 |
| Cucumber | Apr 15 – Apr 22 | May 13 – May 27 | Jul 2 |
| Summer squash and zucchini | Apr 15 – Apr 22 | May 13 – May 27 | Jun 27 |
| Winter squash | Apr 15 – Apr 22 | May 13 – May 27 | Aug 1 |
| Sweet corn | — | May 6 – May 27 | Jul 5 |
| Onion (from sets) | — | Mar 25 – Apr 15 | Jun 23 |
| Garlic | — | Oct 7 – Nov 4 (fall) | following summer |
| Spinach | — | Mar 14 – Apr 11 | Apr 21 |
| Basil | Apr 1 – Apr 15 | May 13 – May 27 | Jul 9 |
Ryland Heights'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 |
|---|---|
| 1948 | Apr 3 |
| 1949 | Apr 17 |
| 1950 | Apr 21 |
| 1951 | Apr 23 |
| 1952 | Apr 11 |
| 1953 | Apr 20 |
| 1954 | May 4 |
| 1955 | Apr 8 |
| 1956 | Apr 23 |
| 1957 | Apr 15 |
| 1958 | Apr 30 |
| 1959 | Mar 28 |
| 1960 | Apr 11 |
| 1961 | May 2 |
| 1962 | Apr 16 |
| 1963 | May 1 |
| 1964 | Apr 10 |
| 1965 | Apr 14 |
| 1966 | May 10 |
| 1967 | Apr 25 |
| 1968 | Mar 25 |
| 1969 | Apr 20 |
| 1970 | Apr 11 |
| 1971 | May 4 |
| 1972 | Apr 9 |
| 1973 | Apr 14 |
| 1974 | May 7 |
| 1975 | Apr 16 |
| 1976 | May 9 |
| 1977 | Apr 9 |
| 1978 | Apr 22 |
| 1979 | Apr 10 |
| 1980 | Apr 25 |
| 1981 | Apr 21 |
| 1982 | Apr 23 |
| 1983 | Apr 25 |
| 1984 | Apr 20 |
| 1985 | Apr 10 |
| 1986 | May 3 |
| 1987 | Apr 4 |
| 1988 | Apr 25 |
| 1989 | Apr 12 |
| 1990 | Apr 18 |
| 1991 | Apr 2 |
| 1992 | Apr 5 |
| 1993 | Apr 22 |
| 1994 | May 2 |
| 1995 | Apr 5 |
| 1996 | May 13 |
| 1997 | May 16 |
| 1998 | Apr 20 |
| 1999 | Mar 30 |
| 2000 | Apr 9 |
| 2001 | Apr 25 |
| 2002 | May 19 |
| 2003 | Apr 23 |
| 2004 | May 4 |
| 2005 | May 3 |
| 2006 | Apr 9 |
| 2007 | Apr 14 |
| 2008 | Apr 15 |
| 2009 | Apr 9 |
| 2010 | Apr 28 |
| 2011 | Apr 1 |
| 2012 | Apr 12 |
| 2013 | Apr 25 |
| 2014 | Apr 16 |
| 2015 | Apr 24 |
| 2016 | May 16 |
| 2017 | May 8 |
| 2018 | Apr 29 |
| 2019 | Apr 1 |
| 2020 | May 9 |
| 2021 | Apr 23 |
| 2022 | Apr 10 |
| 2023 | Apr 24 |
| 2024 | Apr 22 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1948 | 196 |
| 1949 | 197 |
| 1950 | 197 |
| 1951 | 168 |
| 1952 | 178 |
| 1953 | 192 |
| 1954 | 168 |
| 1955 | 198 |
| 1956 | 198 |
| 1957 | 187 |
| 1958 | 182 |
| 1959 | 203 |
| 1960 | 192 |
| 1961 | 177 |
| 1962 | 189 |
| 1963 | 181 |
| 1964 | 179 |
| 1965 | 193 |
| 1966 | 144 |
| 1967 | 178 |
| 1968 | 193 |
| 1969 | 179 |
| 1970 | 188 |
| 1971 | 183 |
| 1972 | 192 |
| 1973 | 185 |
| 1974 | 148 |
| 1975 | 169 |
| 1976 | 161 |
| 1977 | 187 |
| 1978 | 169 |
| 1979 | 185 |
| 1980 | 163 |
| 1981 | 184 |
| 1982 | 185 |
| 1983 | 183 |
| 1984 | 196 |
| 1985 | 211 |
| 1986 | 169 |
| 1987 | 182 |
| 1988 | 165 |
| 1989 | 192 |
| 1990 | 183 |
| 1991 | 196 |
| 1992 | 194 |
| 1993 | 160 |
| 1994 | 175 |
| 1995 | 193 |
| 1996 | 158 |
| 1997 | 158 |
| 1998 | 184 |
| 1999 | 204 |
| 2000 | 180 |
| 2001 | 164 |
| 2002 | 165 |
| 2003 | 161 |
| 2004 | 187 |
| 2005 | 177 |
| 2006 | 186 |
| 2007 | 197 |
| 2008 | 195 |
| 2009 | 191 |
| 2010 | 176 |
| 2011 | 203 |
| 2012 | 178 |
| 2013 | 179 |
| 2014 | 198 |
| 2015 | 176 |
| 2016 | 177 |
| 2017 | 169 |
| 2018 | 174 |
| 2019 | 213 |
| 2020 | 175 |
| 2021 | 192 |
| 2022 | 192 |
| 2023 | 189 |
| 2024 | 212 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1948 | 20.4 °C |
| 1949 | 19.8 °C |
| 1950 | 18.3 °C |
| 1951 | 19.7 °C |
| 1952 | 20.4 °C |
| 1953 | 20.4 °C |
| 1954 | 20.7 °C |
| 1955 | 21.0 °C |
| 1956 | 19.1 °C |
| 1957 | 20.3 °C |
| 1958 | 19.3 °C |
| 1959 | 21.3 °C |
| 1960 | 20.2 °C |
| 1961 | 19.2 °C |
| 1962 | 19.9 °C |
| 1963 | 18.4 °C |
| 1964 | 20.1 °C |
| 1965 | 19.7 °C |
| 1966 | 19.6 °C |
| 1967 | 19.1 °C |
| 1968 | 20.0 °C |
| 1969 | 20.2 °C |
| 1970 | 21.1 °C |
| 1971 | 19.9 °C |
| 1972 | 19.1 °C |
| 1973 | 19.2 °C |
| 1974 | 18.8 °C |
| 1975 | 19.7 °C |
| 1976 | 18.9 °C |
| 1977 | 20.6 °C |
| 1978 | 19.7 °C |
| 1979 | 18.6 °C |
| 1980 | 19.9 °C |
| 1981 | 19.7 °C |
| 1982 | 19.3 °C |
| 1983 | 19.7 °C |
| 1984 | 18.9 °C |
| 1985 | 20.0 °C |
| 1986 | 20.4 °C |
| 1987 | 20.7 °C |
| 1988 | 20.4 °C |
| 1989 | 19.4 °C |
| 1990 | 19.5 °C |
| 1991 | 21.5 °C |
| 1992 | 18.4 °C |
| 1993 | 19.8 °C |
| 1994 | 19.5 °C |
| 1995 | 20.3 °C |
| 1996 | 18.8 °C |
| 1997 | 18.1 °C |
| 1998 | 20.4 °C |
| 1999 | 20.2 °C |
| 2000 | 19.2 °C |
| 2001 | 19.8 °C |
| 2002 | 20.7 °C |
| 2003 | 19.1 °C |
| 2004 | 19.6 °C |
| 2005 | 20.8 °C |
| 2006 | 20.1 °C |
| 2007 | 21.4 °C |
| 2008 | 20.0 °C |
| 2009 | 19.4 °C |
| 2010 | 21.7 °C |
| 2011 | 20.8 °C |
| 2012 | 21.1 °C |
| 2013 | 20.2 °C |
| 2014 | 20.1 °C |
| 2015 | 20.5 °C |
| 2016 | 21.0 °C |
| 2017 | 20.3 °C |
| 2018 | 21.2 °C |
| 2019 | 21.5 °C |
| 2020 | 20.0 °C |
| 2021 | 20.5 °C |
| 2022 | 20.7 °C |
| 2023 | 20.1 °C |
| 2024 | 21.6 °C |
What this means for you: Since 1948, Ryland Heights's last spring frost has stayed at about the same time of year. Year-to-year swings are large, so keep using the safe date rather than the trend.
Source: daily records from Cincinnati/northern Kentucky I (NOAA GHCN-Daily). Years with too many missing days are left out.