When to plant in Harrison, WI

Planting dates worked out from Harrison's own frost records, not a generic zone chart.

Safe to plant out

May 22

1 year in 10 has a later frost

Average last frost

May 10

about a 50% chance of a later one

Average first fall frost

Oct 5

1 year in 10 by Sep 22

Frost-free days

147

median, 1991–2020

Station used: Appleton · 9.8 km away · station 241 m, town 245 m. How we match towns to stations

This season

Plan your garden.

Build my Harrison plan

Planting dates for common crops

Crop	Start indoors	Plant out or sow	Harvest from
Tomato	Mar 27 – Apr 10	May 22 – Jun 5	Jul 16
Sweet pepper	Mar 13 – Mar 27	May 22 – Jun 5	Jul 21
Lettuce (leaf)	Mar 8 – Mar 15	Apr 12 – Apr 26	May 22
Peas	—	Apr 12 – May 10	Jun 6
Bush beans	—	May 15 – Jun 5	Jul 4
Carrot	—	Apr 22 – Jun 3	Jun 21
Beet	—	Apr 22 – Jun 3	Jun 11
Potato	—	Apr 22 – May 13	Jul 1
Kale	Mar 8 – Mar 22	Apr 19 – May 3	Jun 1
Broccoli	Mar 1 – Mar 15	Apr 12 – May 3	Jun 11
Cucumber	Apr 24 – May 1	May 22 – Jun 5	Jul 11
Summer squash and zucchini	Apr 24 – May 1	May 22 – Jun 5	Jul 6
Winter squash	Apr 24 – May 1	May 22 – Jun 5	Aug 10
Sweet corn	—	May 15 – Jun 5	Jul 14
Onion (from sets)	—	Apr 12 – May 3	Jul 11
Garlic	—	Sep 21 – Oct 19 (fall)	following summer
Spinach	—	Apr 12 – May 10	May 20
Basil	Apr 10 – Apr 24	May 22 – Jun 5	Jul 18

Plan all 65 crops for Harrison

Harrison'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
1902	May 11
1903	May 3
1904	Apr 27
1905	May 9
1906	May 29
1907	May 21
1908	May 4
1909	May 11
1910	May 14
1911	May 4
1912	Apr 30
1913	May 10
1914	May 15
1915	May 27
1916	May 1
1917	May 23
1918	May 13
1927	Apr 30
1928	Apr 28
1929	May 19
1930	May 17
1931	May 3
1932	Apr 27
1933	May 4
1934	May 12
1935	May 4
1936	Apr 24
1937	May 15
1938	May 12
1939	May 12
1940	May 4
1941	Apr 25
1942	Apr 19
1943	Apr 21
1944	Apr 28
1945	May 9
1946	Apr 27
1947	May 9
1948	May 8
1949	Apr 24
1950	May 8
1951	Apr 26
1952	Apr 16
1953	May 13
1954	May 8
1955	Apr 7
1956	May 16
1957	May 16
1958	May 9
1959	Apr 21
1960	May 9
1961	May 2
1962	Apr 20
1963	May 11
1964	Apr 24
1965	Apr 28
1966	May 10
1967	May 12
1968	May 6
1969	Apr 29
1970	May 6
1971	Apr 24
1972	May 8
1973	Apr 13
1974	May 7
1975	Apr 22
1976	May 6
1977	May 9
1978	May 1
1979	Apr 30
1980	Apr 24
1981	May 10
1982	Apr 26
1983	May 9
1985	Apr 10
1986	May 2
1987	May 4
1988	Apr 30
1989	May 8
1990	May 10
1991	May 3
1992	May 25
1993	May 16
1994	May 27
1995	Apr 25
1996	May 13
1997	May 16
1998	Apr 29
1999	Apr 24
2000	May 20
2001	Apr 18
2002	May 21
2003	May 22
2004	May 4
2005	May 12
2006	May 6
2007	Apr 16
2008	May 28
2009	Apr 23
2010	May 9
2011	May 17
2012	Apr 29
2013	May 13
2014	May 17
2015	May 20
2016	May 15
2017	May 8
2018	Apr 29
2019	May 12
2020	May 13
2021	May 29
2022	Apr 29
2023	May 15
2024	Apr 26
2025	May 9

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1902	151
1904	146
1905	154
1907	132
1908	147
1909	137
1910	166
1911	172
1912	151
1913	135
1914	163
1915	134
1916	138
1917	109
1918	135
1927	169
1928	180
1929	137
1930	152
1931	167
1932	160
1933	168
1934	168
1935	152
1936	160
1937	145
1938	179
1939	154
1940	185
1941	184
1942	158
1943	177
1944	165
1945	142
1946	168
1947	138
1948	161
1949	157
1950	169
1951	164
1952	168
1953	146
1954	163
1955	208
1956	146
1957	155
1958	144
1959	181
1960	162
1961	152
1962	185
1963	173
1964	164
1965	158
1966	162
1967	138
1968	170
1969	167
1970	162
1971	190
1972	153
1973	203
1974	136
1975	162
1976	154
1977	159
1978	159
1979	165
1980	163
1981	143
1982	176
1985	183
1986	160
1987	151
1988	157
1989	137
1990	153
1991	146
1992	120
1993	136
1994	135
1995	149
1996	142
1997	137
1998	174
1999	149
2000	138
2001	170
2002	138
2003	132
2004	153
2005	149
2006	152
2007	151
2008	127
2009	159
2010	147
2011	137
2012	142
2013	153
2014	145
2015	147
2016	150
2017	173
2018	166
2019	154
2020	141
2021	145
2022	168
2023	145
2024	172
2025	167

Each year's average temperature, April to SeptemberLong-term trend

See the data as a table

Year	Growing-season temperature
1901	16.8 °C
1902	15.1 °C
1903	15.1 °C
1904	15.3 °C
1905	16.0 °C
1907	14.5 °C
1908	16.9 °C
1909	15.6 °C
1910	17.3 °C
1911	17.8 °C
1912	16.5 °C
1913	17.4 °C
1914	16.5 °C
1915	15.4 °C
1916	16.4 °C
1917	14.5 °C
1918	15.5 °C
1927	14.7 °C
1928	14.6 °C
1929	15.2 °C
1930	16.9 °C
1931	17.4 °C
1932	16.3 °C
1933	17.1 °C
1934	16.4 °C
1935	15.5 °C
1936	17.2 °C
1937	17.4 °C
1938	17.1 °C
1939	17.6 °C
1940	16.2 °C
1941	18.1 °C
1942	16.2 °C
1943	16.5 °C
1944	16.7 °C
1945	15.6 °C
1946	16.3 °C
1947	16.5 °C
1948	17.2 °C
1949	17.0 °C
1950	14.6 °C
1951	15.5 °C
1952	17.1 °C
1953	16.7 °C
1954	16.2 °C
1955	18.4 °C
1956	15.6 °C
1957	16.4 °C
1958	15.8 °C
1959	18.0 °C
1960	16.3 °C
1961	16.1 °C
1962	16.4 °C
1963	16.8 °C
1964	17.0 °C
1965	15.7 °C
1966	16.0 °C
1967	15.5 °C
1968	16.6 °C
1969	16.1 °C
1970	17.0 °C
1971	16.3 °C
1972	15.7 °C
1973	16.5 °C
1974	15.4 °C
1975	16.2 °C
1976	16.6 °C
1977	17.6 °C
1978	16.3 °C
1979	15.7 °C
1980	17.1 °C
1981	16.7 °C
1982	16.0 °C
1983	16.6 °C
1985	17.6 °C
1986	17.3 °C
1987	18.5 °C
1988	18.8 °C
1989	16.6 °C
1990	17.0 °C
1991	18.0 °C
1992	15.3 °C
1993	15.2 °C
1994	16.1 °C
1995	16.4 °C
1996	14.9 °C
1997	14.9 °C
1998	17.5 °C
1999	16.8 °C
2000	15.9 °C
2001	17.4 °C
2002	16.6 °C
2003	16.2 °C
2004	15.7 °C
2005	17.5 °C
2006	16.8 °C
2007	17.3 °C
2008	16.6 °C
2009	15.9 °C
2010	18.0 °C
2011	15.9 °C
2012	17.5 °C
2013	15.8 °C
2014	15.7 °C
2015	17.0 °C
2016	17.1 °C
2017	16.5 °C
2018	16.7 °C
2019	15.8 °C
2020	16.1 °C
2021	17.0 °C
2022	16.3 °C
2023	16.8 °C
2024	17.3 °C
2025	17.0 °C

What this means for you: Since 1902, Harrison'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 Appleton (NOAA GHCN-Daily). Years with too many missing days are left out.

Nearby towns

Combined Locks Kimberly Little Chute Appleton Kaukauna Sherwood