When to plant in Heathcote, NJ
Planting dates worked out from Heathcote's own frost records, not a generic zone chart.
Safe to plant out
May 14
1 year in 10 has a later frost
Average last frost
Apr 24
about a 50% chance of a later one
Average first fall frost
Oct 17
1 year in 10 by Oct 4
Frost-free days
174
median, 1991–2020
Station used: Hightstown 2 W · 13.6 km away · station 30 m, town 52 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 19 – Apr 2 | May 14 – May 28 | Jul 8 |
| Sweet pepper | Mar 5 – Mar 19 | May 14 – May 28 | Jul 13 |
| Lettuce (leaf) | Feb 20 – Feb 27 | Mar 27 – Apr 10 | May 6 |
| Peas | — | Mar 22 – Apr 19 | May 16 |
| Bush beans | — | May 7 – May 28 | Jun 26 |
| Carrot | — | Apr 3 – May 15 | Jun 2 |
| Beet | — | Apr 2 – May 14 | May 22 |
| Potato | — | Apr 3 – Apr 24 | Jun 12 |
| Kale | Feb 15 – Mar 1 | Mar 29 – Apr 12 | May 11 |
| Broccoli | Feb 13 – Feb 27 | Mar 27 – Apr 17 | May 26 |
| Cucumber | Apr 16 – Apr 23 | May 14 – May 28 | Jul 3 |
| Summer squash and zucchini | Apr 16 – Apr 23 | May 14 – May 28 | Jun 28 |
| Winter squash | Apr 16 – Apr 23 | May 14 – May 28 | Aug 2 |
| Sweet corn | — | May 7 – May 28 | Jul 6 |
| Onion (from sets) | — | Mar 27 – Apr 17 | Jun 25 |
| Garlic | — | Oct 3 – Oct 31 (fall) | following summer |
| Spinach | — | Mar 22 – Apr 19 | Apr 29 |
| Basil | Apr 2 – Apr 16 | May 14 – May 28 | Jul 10 |
Heathcote'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 |
|---|---|
| 1893 | Apr 7 |
| 1894 | Apr 10 |
| 1895 | Apr 18 |
| 1896 | Apr 11 |
| 1897 | Apr 21 |
| 1898 | Apr 9 |
| 1899 | Apr 11 |
| 1900 | May 11 |
| 1901 | Mar 31 |
| 1902 | Apr 15 |
| 1903 | May 3 |
| 1904 | Apr 23 |
| 1905 | May 2 |
| 1907 | May 12 |
| 1908 | Apr 21 |
| 1909 | Apr 25 |
| 1910 | May 6 |
| 1911 | May 4 |
| 1912 | Apr 20 |
| 1913 | May 12 |
| 1915 | Apr 8 |
| 1916 | Apr 16 |
| 1917 | May 4 |
| 1919 | Apr 26 |
| 1920 | Apr 18 |
| 1921 | Apr 12 |
| 1922 | Apr 29 |
| 1923 | May 11 |
| 1924 | May 5 |
| 1925 | Apr 22 |
| 1927 | Apr 25 |
| 1928 | Apr 27 |
| 1929 | May 23 |
| 1930 | Apr 24 |
| 1933 | Apr 27 |
| 1935 | Apr 17 |
| 1936 | Apr 25 |
| 1937 | Apr 13 |
| 1938 | Apr 24 |
| 1939 | May 15 |
| 1940 | Apr 29 |
| 1941 | May 3 |
| 1942 | Apr 14 |
| 1943 | Apr 23 |
| 1944 | Apr 14 |
| 1945 | Apr 23 |
| 1946 | Apr 28 |
| 1947 | May 10 |
| 1948 | Apr 29 |
| 1949 | Apr 29 |
| 1950 | Apr 22 |
| 1951 | Apr 21 |
| 1952 | Apr 12 |
| 1953 | Apr 22 |
| 1954 | Apr 10 |
| 1955 | Apr 8 |
| 1956 | May 25 |
| 1957 | May 4 |
| 1958 | Apr 10 |
| 1959 | Apr 24 |
| 1960 | Apr 20 |
| 1961 | Apr 20 |
| 1962 | Apr 18 |
| 1963 | May 24 |
| 1964 | Apr 10 |
| 1965 | Apr 25 |
| 1966 | May 11 |
| 1967 | Apr 26 |
| 1968 | Apr 7 |
| 1969 | Apr 13 |
| 1970 | May 7 |
| 1971 | Apr 17 |
| 1972 | Apr 28 |
| 1973 | Apr 15 |
| 1974 | May 8 |
| 1975 | Apr 22 |
| 1976 | Apr 13 |
| 1977 | Apr 10 |
| 1978 | May 5 |
| 1979 | Apr 21 |
| 1980 | Apr 18 |
| 1981 | Apr 22 |
| 1982 | Apr 23 |
| 1983 | May 10 |
| 1984 | Apr 22 |
| 1985 | May 9 |
| 1986 | May 4 |
| 1987 | Apr 14 |
| 1988 | Apr 26 |
| 1989 | Apr 24 |
| 1990 | Apr 19 |
| 1991 | Apr 13 |
| 1992 | Apr 29 |
| 1993 | Apr 28 |
| 1994 | Apr 23 |
| 1995 | Apr 17 |
| 1996 | May 14 |
| 1997 | Apr 21 |
| 1998 | Apr 13 |
| 1999 | Apr 25 |
| 2000 | May 1 |
| 2001 | Apr 29 |
| 2002 | May 21 |
| 2003 | Apr 14 |
| 2004 | Apr 16 |
| 2005 | Apr 17 |
| 2006 | Apr 30 |
| 2007 | Apr 11 |
| 2008 | Apr 16 |
| 2009 | Apr 17 |
| 2010 | May 11 |
| 2011 | Mar 31 |
| 2012 | Apr 30 |
| 2013 | May 14 |
| 2014 | Apr 22 |
| 2015 | Apr 26 |
| 2016 | Apr 17 |
| 2017 | Apr 10 |
| 2018 | Apr 23 |
| 2019 | Apr 3 |
| 2020 | May 14 |
| 2021 | Apr 4 |
| 2022 | May 1 |
| 2023 | Apr 11 |
| 2024 | Apr 26 |
| 2025 | Apr 10 |
| 2026 | Apr 21 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1893 | 205 |
| 1894 | 189 |
| 1895 | 174 |
| 1896 | 180 |
| 1897 | 179 |
| 1898 | 216 |
| 1899 | 173 |
| 1900 | 186 |
| 1901 | 208 |
| 1902 | 189 |
| 1903 | 176 |
| 1904 | 187 |
| 1905 | 172 |
| 1907 | 155 |
| 1908 | 164 |
| 1909 | 170 |
| 1910 | 159 |
| 1911 | 177 |
| 1915 | 185 |
| 1916 | 181 |
| 1917 | 155 |
| 1919 | 169 |
| 1920 | 194 |
| 1921 | 194 |
| 1922 | 172 |
| 1923 | 148 |
| 1927 | 183 |
| 1928 | 182 |
| 1929 | 138 |
| 1930 | 160 |
| 1933 | 181 |
| 1935 | 170 |
| 1936 | 184 |
| 1937 | 178 |
| 1938 | 166 |
| 1939 | 153 |
| 1940 | 172 |
| 1941 | 166 |
| 1942 | 168 |
| 1943 | 165 |
| 1944 | 184 |
| 1945 | 163 |
| 1946 | 198 |
| 1947 | 139 |
| 1948 | 169 |
| 1949 | 181 |
| 1950 | 187 |
| 1951 | 161 |
| 1952 | 190 |
| 1953 | 168 |
| 1954 | 180 |
| 1955 | 197 |
| 1956 | 138 |
| 1957 | 146 |
| 1958 | 178 |
| 1959 | 177 |
| 1960 | 183 |
| 1961 | 190 |
| 1962 | 189 |
| 1963 | 122 |
| 1964 | 178 |
| 1965 | 163 |
| 1966 | 168 |
| 1967 | 179 |
| 1968 | 181 |
| 1969 | 192 |
| 1970 | 165 |
| 1971 | 201 |
| 1972 | 165 |
| 1973 | 200 |
| 1974 | 147 |
| 1975 | 191 |
| 1976 | 181 |
| 1977 | 196 |
| 1978 | 163 |
| 1979 | 172 |
| 1980 | 187 |
| 1981 | 170 |
| 1982 | 170 |
| 1983 | 164 |
| 1984 | 167 |
| 1985 | 172 |
| 1986 | 167 |
| 1987 | 177 |
| 1988 | 165 |
| 1989 | 168 |
| 1990 | 183 |
| 1991 | 183 |
| 1992 | 159 |
| 1993 | 155 |
| 1994 | 171 |
| 1995 | 201 |
| 1996 | 142 |
| 1997 | 163 |
| 1998 | 192 |
| 1999 | 165 |
| 2000 | 160 |
| 2001 | 162 |
| 2002 | 160 |
| 2003 | 171 |
| 2004 | 201 |
| 2005 | 192 |
| 2006 | 165 |
| 2007 | 200 |
| 2008 | 186 |
| 2009 | 184 |
| 2010 | 173 |
| 2011 | 210 |
| 2012 | 165 |
| 2013 | 164 |
| 2014 | 180 |
| 2015 | 174 |
| 2016 | 176 |
| 2017 | 189 |
| 2018 | 178 |
| 2019 | 198 |
| 2020 | 156 |
| 2021 | 212 |
| 2022 | 170 |
| 2023 | 204 |
| 2024 | 184 |
| 2025 | 199 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1893 | 17.7 °C |
| 1894 | 19.5 °C |
| 1895 | 19.9 °C |
| 1896 | 19.9 °C |
| 1897 | 18.7 °C |
| 1898 | 19.5 °C |
| 1899 | 19.6 °C |
| 1900 | 19.9 °C |
| 1901 | 18.8 °C |
| 1902 | 18.4 °C |
| 1903 | 18.2 °C |
| 1904 | 18.3 °C |
| 1905 | 17.7 °C |
| 1906 | 18.7 °C |
| 1907 | 17.1 °C |
| 1908 | 19.1 °C |
| 1909 | 18.3 °C |
| 1910 | 18.9 °C |
| 1911 | 19.1 °C |
| 1912 | 18.9 °C |
| 1914 | 19.1 °C |
| 1915 | 18.5 °C |
| 1919 | 18.8 °C |
| 1920 | 18.0 °C |
| 1921 | 19.6 °C |
| 1922 | 18.7 °C |
| 1923 | 17.9 °C |
| 1927 | 17.4 °C |
| 1928 | 18.1 °C |
| 1929 | 18.5 °C |
| 1930 | 19.1 °C |
| 1933 | 19.5 °C |
| 1935 | 18.5 °C |
| 1936 | 18.9 °C |
| 1937 | 18.8 °C |
| 1938 | 18.7 °C |
| 1939 | 18.8 °C |
| 1940 | 17.5 °C |
| 1941 | 19.1 °C |
| 1942 | 19.3 °C |
| 1943 | 18.9 °C |
| 1944 | 19.4 °C |
| 1945 | 18.9 °C |
| 1946 | 18.2 °C |
| 1947 | 18.6 °C |
| 1948 | 18.6 °C |
| 1949 | 19.3 °C |
| 1950 | 17.5 °C |
| 1951 | 18.7 °C |
| 1952 | 19.4 °C |
| 1953 | 19.3 °C |
| 1954 | 18.7 °C |
| 1955 | 19.7 °C |
| 1956 | 17.9 °C |
| 1957 | 19.6 °C |
| 1958 | 18.5 °C |
| 1959 | 20.1 °C |
| 1960 | 19.2 °C |
| 1961 | 19.1 °C |
| 1962 | 18.3 °C |
| 1963 | 18.2 °C |
| 1964 | 18.6 °C |
| 1965 | 18.8 °C |
| 1966 | 18.4 °C |
| 1967 | 18.0 °C |
| 1968 | 18.9 °C |
| 1969 | 19.2 °C |
| 1970 | 19.3 °C |
| 1971 | 18.7 °C |
| 1972 | 18.4 °C |
| 1973 | 19.4 °C |
| 1974 | 18.4 °C |
| 1975 | 18.3 °C |
| 1976 | 18.8 °C |
| 1977 | 19.3 °C |
| 1978 | 18.1 °C |
| 1979 | 18.4 °C |
| 1980 | 19.7 °C |
| 1981 | 19.0 °C |
| 1982 | 18.0 °C |
| 1983 | 19.0 °C |
| 1984 | 18.3 °C |
| 1985 | 18.9 °C |
| 1986 | 18.7 °C |
| 1987 | 18.8 °C |
| 1988 | 18.7 °C |
| 1989 | 18.2 °C |
| 1990 | 18.2 °C |
| 1991 | 19.5 °C |
| 1992 | 17.4 °C |
| 1993 | 19.0 °C |
| 1994 | 19.0 °C |
| 1995 | 18.7 °C |
| 1996 | 18.3 °C |
| 1997 | 17.6 °C |
| 1998 | 19.5 °C |
| 1999 | 19.4 °C |
| 2000 | 18.3 °C |
| 2001 | 19.1 °C |
| 2002 | 19.6 °C |
| 2003 | 18.4 °C |
| 2004 | 19.3 °C |
| 2005 | 19.6 °C |
| 2006 | 19.1 °C |
| 2007 | 19.1 °C |
| 2008 | 19.2 °C |
| 2009 | 18.5 °C |
| 2010 | 21.0 °C |
| 2011 | 20.4 °C |
| 2012 | 19.7 °C |
| 2013 | 18.9 °C |
| 2014 | 18.5 °C |
| 2015 | 19.7 °C |
| 2016 | 19.5 °C |
| 2017 | 19.0 °C |
| 2018 | 19.6 °C |
| 2019 | 19.7 °C |
| 2020 | 18.9 °C |
| 2021 | 20.0 °C |
| 2022 | 20.1 °C |
| 2023 | 19.6 °C |
| 2024 | 20.3 °C |
| 2025 | 19.9 °C |
What this means for you: Since 1893, Heathcote'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 Hightstown 2 W (NOAA GHCN-Daily). Years with too many missing days are left out.