When to plant in Fennimore, WI

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

Safe to plant out

May 9

1 year in 10 has a later frost

Average last frost

Apr 25

about a 50% chance of a later one

Average first fall frost

Oct 9

1 year in 10 by Sep 28

Frost-free days

164

median, 1991–2020

Station used: Lancaster 4 Wsw · 20.5 km away · station 317 m, town 364 m. How we match towns to stations

This season

Plan your garden.

Build my Fennimore plan

Planting dates for common crops

Crop	Start indoors	Plant out or sow	Harvest from
Tomato	Mar 14 – Mar 28	May 9 – May 23	Jul 3
Sweet pepper	Feb 28 – Mar 14	May 9 – May 23	Jul 8
Lettuce (leaf)	Mar 2 – Mar 9	Apr 6 – Apr 20	May 16
Peas	—	Apr 6 – May 4	May 31
Bush beans	—	May 2 – May 23	Jun 21
Carrot	—	Apr 16 – May 28	Jun 15
Beet	—	Apr 16 – May 28	Jun 5
Potato	—	Apr 16 – May 7	Jun 25
Kale	Mar 2 – Mar 16	Apr 13 – Apr 27	May 26
Broccoli	Feb 23 – Mar 9	Apr 6 – Apr 27	Jun 5
Cucumber	Apr 11 – Apr 18	May 9 – May 23	Jun 28
Summer squash and zucchini	Apr 11 – Apr 18	May 9 – May 23	Jun 23
Winter squash	Apr 11 – Apr 18	May 9 – May 23	Jul 28
Sweet corn	—	May 2 – May 23	Jul 1
Onion (from sets)	—	Apr 6 – Apr 27	Jul 5
Garlic	—	Sep 25 – Oct 23 (fall)	following summer
Spinach	—	Apr 6 – May 4	May 14
Basil	Mar 28 – Apr 11	May 9 – May 23	Jul 5

Plan all 65 crops for Fennimore

Fennimore'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	May 3
1894	Apr 12
1895	May 14
1896	Apr 22
1897	May 31
1898	May 7
1899	Apr 19
1900	May 5
1901	Apr 21
1902	May 10
1903	May 3
1904	Apr 27
1907	May 27
1910	May 14
1911	May 2
1912	Apr 27
1918	May 13
1922	Apr 28
1923	May 9
1924	May 20
1925	May 25
1926	Apr 28
1928	May 6
1929	May 19
1930	May 24
1931	May 20
1932	Apr 29
1933	Apr 27
1934	Apr 27
1935	May 4
1936	Apr 27
1937	Apr 25
1938	May 12
1939	May 11
1940	May 4
1941	Apr 24
1942	Apr 19
1943	May 1
1944	May 6
1945	May 10
1946	May 11
1947	May 29
1948	May 8
1949	Apr 24
1950	May 1
1951	Apr 23
1952	Apr 15
1953	May 13
1954	May 8
1955	Apr 7
1956	May 16
1957	May 4
1958	May 5
1959	Apr 21
1960	May 9
1961	May 26
1962	Apr 20
1963	May 1
1964	Apr 15
1965	May 29
1966	May 11
1967	May 22
1968	Apr 25
1969	May 12
1970	May 6
1971	May 12
1972	Apr 25
1973	May 17
1975	Apr 22
1976	May 8
1977	May 9
1978	May 6
1979	Apr 16
1980	May 7
1981	May 12
1982	Apr 27
1983	May 9
1984	May 1
1985	Apr 10
1986	Apr 23
1987	Apr 5
1988	Apr 27
1989	May 7
1990	May 10
1991	Apr 21
1992	May 6
1993	Apr 21
1994	May 1
1995	Apr 11
1996	Apr 30
1997	May 15
1998	Apr 17
1999	Apr 24
2000	Apr 13
2001	Apr 19
2002	May 3
2003	Apr 22
2004	May 3
2005	May 4
2006	Apr 9
2007	Apr 14
2008	Apr 15
2009	Apr 15
2010	Apr 9
2011	May 4
2012	Apr 11
2013	May 12
2014	Apr 19
2015	Apr 27
2016	May 16
2017	Apr 28
2018	Apr 29
2019	Apr 29
2020	May 9
2021	May 11
2022	Apr 28
2023	Apr 26
2024	Apr 24
2025	Apr 16

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1894	176
1895	138
1896	150
1897	130
1898	157
1899	159
1900	155
1901	164
1902	124
1903	137
1904	161
1907	120
1910	161
1911	171
1922	166
1923	163
1924	132
1925	134
1926	149
1928	140
1929	121
1930	126
1931	164
1933	173
1934	152
1935	151
1936	157
1937	164
1938	160
1939	141
1940	164
1941	177
1942	157
1943	167
1944	161
1945	141
1946	153
1947	123
1948	161
1949	157
1950	145
1951	157
1952	170
1953	146
1954	161
1955	191
1956	126
1957	158
1958	148
1959	173
1960	162
1961	124
1962	185
1963	180
1964	165
1965	145
1966	157
1967	129
1968	161
1969	154
1970	156
1971	171
1972	157
1973	165
1975	156
1976	136
1977	154
1978	154
1979	173
1980	149
1981	142
1982	171
1983	156
1984	147
1985	170
1986	165
1987	180
1988	159
1989	138
1990	153
1991	151
1992	163
1993	170
1994	161
1995	163
1996	155
1997	151
1998	179
1999	162
2000	175
2001	169
2002	156
2003	159
2004	151
2005	156
2006	185
2007	191
2008	183
2009	177
2010	195
2011	134
2012	181
2013	160
2014	168
2015	172
2016	149
2017	181
2018	165
2019	165
2020	147
2021	164
2022	162
2023	167
2024	174
2025	189

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

See the data as a table

Year	Growing-season temperature
1894	18.7 °C
1895	18.5 °C
1896	17.9 °C
1897	17.4 °C
1898	17.6 °C
1899	17.3 °C
1900	17.9 °C
1901	18.4 °C
1902	16.1 °C
1903	16.4 °C
1904	15.9 °C
1907	15.5 °C
1910	17.5 °C
1911	17.9 °C
1912	16.7 °C
1922	17.9 °C
1923	17.3 °C
1924	14.9 °C
1925	18.0 °C
1926	16.7 °C
1928	16.3 °C
1929	16.6 °C
1930	17.8 °C
1931	19.0 °C
1932	16.7 °C
1933	18.4 °C
1934	18.6 °C
1935	15.7 °C
1936	18.6 °C
1937	17.9 °C
1938	17.6 °C
1939	18.1 °C
1940	17.2 °C
1941	18.8 °C
1942	17.9 °C
1943	17.4 °C
1944	18.1 °C
1945	16.3 °C
1946	17.6 °C
1947	17.4 °C
1948	18.5 °C
1949	18.2 °C
1950	16.3 °C
1951	16.5 °C
1952	18.2 °C
1953	17.6 °C
1954	17.9 °C
1955	19.6 °C
1956	17.3 °C
1957	17.4 °C
1958	16.9 °C
1959	18.4 °C
1960	17.5 °C
1961	16.6 °C
1962	17.1 °C
1963	17.9 °C
1964	18.2 °C
1965	17.0 °C
1966	16.6 °C
1967	16.4 °C
1968	17.4 °C
1969	17.3 °C
1970	17.9 °C
1971	17.4 °C
1972	17.0 °C
1975	16.7 °C
1976	16.9 °C
1977	18.2 °C
1978	17.5 °C
1979	16.6 °C
1980	17.9 °C
1981	17.1 °C
1982	16.6 °C
1983	17.4 °C
1984	16.4 °C
1985	16.9 °C
1986	17.1 °C
1987	18.0 °C
1988	18.8 °C
1989	16.4 °C
1990	16.6 °C
1991	17.8 °C
1992	15.1 °C
1993	15.5 °C
1994	16.7 °C
1995	16.8 °C
1996	15.6 °C
1997	15.5 °C
1998	17.7 °C
1999	17.2 °C
2000	16.6 °C
2001	17.1 °C
2002	17.0 °C
2003	16.8 °C
2004	16.2 °C
2005	17.8 °C
2006	17.0 °C
2007	17.1 °C
2008	16.4 °C
2009	15.4 °C
2010	18.6 °C
2011	17.3 °C
2012	18.9 °C
2013	17.0 °C
2014	16.5 °C
2015	17.2 °C
2016	17.7 °C
2017	17.2 °C
2018	17.3 °C
2019	16.9 °C
2020	16.8 °C
2021	17.9 °C
2022	17.0 °C
2023	17.9 °C
2024	17.9 °C
2025	17.7 °C

What this means for you: Since 1893, Fennimore's last spring frost has come about 1 day earlier per decade, on average. The frost-free season has grown by about 2 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.

Source: daily records from Lancaster 4 Wsw (NOAA GHCN-Daily). Years with too many missing days are left out.

Nearby towns

Lancaster Boscobel Muscoda Platteville Dickeyville Prairie du Chien