When to plant in Union City, OH
Planting dates worked out from Union City's own frost records, not a generic zone chart.
Safe to plant out
May 2
1 year in 10 has a later frost
Average last frost
Apr 18
about a 50% chance of a later one
Average first fall frost
Oct 15
1 year in 10 by Oct 3
Frost-free days
181
median, 1991–2020
Station used: Winchester Airport 3 E · 10.4 km away · station 338 m, town 336 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 7 – Mar 21 | May 2 – May 16 | Jun 26 |
| Sweet pepper | Feb 21 – Mar 7 | May 2 – May 16 | Jul 1 |
| Lettuce (leaf) | Feb 14 – Feb 21 | Mar 21 – Apr 4 | Apr 30 |
| Peas | — | Mar 7 – Apr 4 | May 1 |
| Bush beans | — | Apr 25 – May 16 | Jun 14 |
| Carrot | — | Mar 28 – May 9 | May 27 |
| Beet | — | Mar 21 – May 2 | May 10 |
| Potato | — | Mar 28 – Apr 18 | Jun 6 |
| Kale | Feb 7 – Feb 21 | Mar 21 – Apr 4 | May 3 |
| Broccoli | Feb 7 – Feb 21 | Mar 21 – Apr 11 | May 20 |
| Cucumber | Apr 4 – Apr 11 | May 2 – May 16 | Jun 21 |
| Summer squash and zucchini | Apr 4 – Apr 11 | May 2 – May 16 | Jun 16 |
| Winter squash | Apr 4 – Apr 11 | May 2 – May 16 | Jul 21 |
| Sweet corn | — | Apr 25 – May 16 | Jun 24 |
| Onion (from sets) | — | Mar 21 – Apr 11 | Jun 19 |
| Garlic | — | Oct 1 – Oct 29 (fall) | following summer |
| Spinach | — | Mar 7 – Apr 4 | Apr 14 |
| Basil | Mar 21 – Apr 4 | May 2 – May 16 | Jun 28 |
Union City'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 |
|---|---|
| 1943 | May 1 |
| 1944 | Apr 28 |
| 1945 | May 11 |
| 1946 | May 13 |
| 1947 | May 10 |
| 1948 | Apr 17 |
| 1949 | May 11 |
| 1950 | Apr 28 |
| 1951 | Apr 23 |
| 1952 | Apr 16 |
| 1953 | Apr 21 |
| 1954 | May 10 |
| 1955 | May 9 |
| 1956 | May 8 |
| 1957 | May 4 |
| 1958 | Apr 30 |
| 1959 | May 16 |
| 1960 | May 9 |
| 1961 | May 27 |
| 1962 | Apr 24 |
| 1963 | May 23 |
| 1964 | Apr 10 |
| 1965 | Apr 29 |
| 1966 | May 11 |
| 1967 | Apr 28 |
| 1968 | May 6 |
| 1969 | Apr 20 |
| 1970 | May 6 |
| 1971 | May 4 |
| 1972 | Apr 26 |
| 1974 | May 7 |
| 1976 | May 8 |
| 1977 | Apr 30 |
| 1978 | May 1 |
| 1979 | Apr 29 |
| 1982 | Apr 28 |
| 1983 | May 9 |
| 1986 | Apr 23 |
| 1987 | Apr 13 |
| 1988 | Apr 25 |
| 1989 | May 8 |
| 1990 | Apr 18 |
| 1991 | Apr 11 |
| 1992 | Apr 6 |
| 1993 | Apr 22 |
| 1994 | May 2 |
| 1995 | Apr 14 |
| 1996 | May 13 |
| 1997 | Apr 26 |
| 1998 | Apr 6 |
| 1999 | Mar 30 |
| 2000 | Apr 13 |
| 2001 | Apr 19 |
| 2002 | Apr 10 |
| 2003 | Apr 23 |
| 2004 | Apr 28 |
| 2005 | May 4 |
| 2006 | Apr 26 |
| 2007 | Apr 16 |
| 2008 | Apr 16 |
| 2009 | Apr 12 |
| 2010 | Apr 19 |
| 2011 | Apr 3 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1943 | 168 |
| 1944 | 169 |
| 1945 | 150 |
| 1946 | 140 |
| 1947 | 181 |
| 1948 | 183 |
| 1949 | 168 |
| 1950 | 148 |
| 1951 | 158 |
| 1952 | 173 |
| 1953 | 168 |
| 1954 | 160 |
| 1955 | 168 |
| 1956 | 134 |
| 1957 | 159 |
| 1958 | 154 |
| 1959 | 154 |
| 1960 | 163 |
| 1961 | 140 |
| 1962 | 182 |
| 1963 | 129 |
| 1964 | 177 |
| 1965 | 157 |
| 1966 | 147 |
| 1967 | 174 |
| 1968 | 151 |
| 1969 | 180 |
| 1970 | 145 |
| 1971 | 183 |
| 1972 | 171 |
| 1974 | 138 |
| 1976 | 162 |
| 1977 | 165 |
| 1979 | 166 |
| 1982 | 176 |
| 1983 | 158 |
| 1986 | 178 |
| 1988 | 163 |
| 1989 | 148 |
| 1990 | 190 |
| 1991 | 187 |
| 1992 | 193 |
| 1993 | 160 |
| 1994 | 175 |
| 1996 | 158 |
| 1997 | 177 |
| 1998 | 198 |
| 1999 | 188 |
| 2000 | 176 |
| 2001 | 170 |
| 2002 | 186 |
| 2003 | 161 |
| 2004 | 157 |
| 2005 | 174 |
| 2006 | 168 |
| 2007 | 194 |
| 2008 | 188 |
| 2009 | 187 |
| 2010 | 185 |
| 2011 | 201 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1943 | 19.1 °C |
| 1944 | 20.2 °C |
| 1945 | 18.5 °C |
| 1946 | 18.4 °C |
| 1947 | 18.5 °C |
| 1948 | 19.4 °C |
| 1949 | 18.5 °C |
| 1950 | 17.0 °C |
| 1951 | 17.9 °C |
| 1952 | 19.1 °C |
| 1953 | 18.6 °C |
| 1954 | 19.3 °C |
| 1955 | 19.3 °C |
| 1956 | 17.3 °C |
| 1957 | 18.2 °C |
| 1958 | 17.2 °C |
| 1959 | 19.1 °C |
| 1960 | 17.8 °C |
| 1961 | 16.9 °C |
| 1962 | 17.7 °C |
| 1963 | 17.0 °C |
| 1964 | 18.3 °C |
| 1965 | 18.0 °C |
| 1966 | 16.9 °C |
| 1967 | 16.6 °C |
| 1968 | 17.7 °C |
| 1969 | 17.7 °C |
| 1970 | 18.5 °C |
| 1971 | 17.6 °C |
| 1972 | 17.5 °C |
| 1974 | 17.3 °C |
| 1975 | 18.0 °C |
| 1976 | 18.0 °C |
| 1977 | 19.9 °C |
| 1978 | 18.5 °C |
| 1979 | 18.1 °C |
| 1980 | 19.4 °C |
| 1981 | 18.6 °C |
| 1982 | 18.3 °C |
| 1983 | 18.9 °C |
| 1986 | 18.9 °C |
| 1987 | 19.0 °C |
| 1988 | 19.2 °C |
| 1989 | 17.3 °C |
| 1990 | 17.7 °C |
| 1991 | 19.7 °C |
| 1992 | 17.0 °C |
| 1993 | 17.8 °C |
| 1994 | 17.7 °C |
| 1995 | 17.3 °C |
| 1996 | 17.6 °C |
| 1997 | 16.8 °C |
| 1998 | 19.2 °C |
| 1999 | 19.1 °C |
| 2000 | 18.1 °C |
| 2001 | 18.6 °C |
| 2002 | 19.3 °C |
| 2003 | 17.7 °C |
| 2004 | 18.4 °C |
| 2005 | 19.1 °C |
| 2006 | 18.3 °C |
| 2007 | 19.0 °C |
| 2008 | 18.4 °C |
| 2009 | 17.9 °C |
| 2010 | 20.0 °C |
| 2011 | 19.0 °C |
What this means for you: Since 1943, Union City's last spring frost has come about 3 days earlier per decade, on average. The frost-free season has grown by about 4 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.
Source: daily records from Winchester Airport 3 E (NOAA GHCN-Daily). Years with too many missing days are left out.