When to plant in Pewaukee, WI

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

Safe to plant out

May 13

1 year in 10 has a later frost

Average last frost

Apr 27

about a 50% chance of a later one

Average first fall frost

Oct 11

1 year in 10 by Sep 30

Frost-free days

162

median, 1991–2020

Station used: Waukesha Wwtp · 9.1 km away · station 244 m, town 266 m. How we match towns to stations

This season

Plan your garden.

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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)	Mar 2 – Mar 9	Apr 6 – Apr 20	May 16
Peas	—	Apr 6 – May 4	May 31
Bush beans	—	May 6 – May 27	Jun 25
Carrot	—	Apr 17 – May 29	Jun 16
Beet	—	Apr 17 – May 29	Jun 6
Potato	—	Apr 17 – May 8	Jun 26
Kale	Mar 2 – Mar 16	Apr 13 – Apr 27	May 26
Broccoli	Feb 23 – Mar 9	Apr 6 – Apr 27	Jun 5
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)	—	Apr 6 – Apr 27	Jul 5
Garlic	—	Sep 27 – Oct 25 (fall)	following summer
Spinach	—	Apr 6 – May 4	May 14
Basil	Apr 1 – Apr 15	May 13 – May 27	Jul 9

Plan all 65 crops for Pewaukee

Pewaukee'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
1894	Apr 12
1895	May 21
1896	Apr 10
1897	May 1
1898	Apr 8
1899	Apr 16
1900	May 5
1901	Apr 21
1902	May 10
1903	May 1
1904	Apr 27
1905	May 1
1911	May 4
1912	Apr 28
1913	May 11
1914	Apr 21
1915	Apr 17
1916	Apr 10
1917	May 23
1918	May 1
1919	Apr 26
1920	May 16
1921	May 15
1922	Apr 29
1923	May 13
1924	May 20
1925	May 26
1926	May 4
1927	Apr 30
1928	May 12
1929	May 19
1930	May 17
1931	May 4
1932	May 2
1933	Apr 27
1934	May 13
1935	May 6
1936	Apr 23
1937	May 15
1938	May 13
1939	May 12
1940	May 11
1941	May 10
1942	May 10
1943	May 14
1944	Apr 29
1945	Jun 5
1946	May 13
1947	May 10
1948	May 8
1949	May 11
1950	May 8
1951	Apr 26
1952	Apr 25
1953	May 13
1954	May 8
1955	Apr 8
1956	May 8
1957	May 16
1958	May 5
1959	Apr 22
1960	May 1
1961	May 27
1962	Apr 20
1963	May 23
1964	Apr 15
1965	Apr 28
1966	May 10
1967	May 12
1968	May 6
1969	Apr 30
1970	May 6
1971	May 3
1972	Apr 26
1973	Apr 14
1974	May 7
1975	Apr 21
1976	May 8
1977	May 9
1978	May 2
1979	May 1
1980	Apr 26
1982	Apr 28
1983	May 17
1984	Apr 22
1985	Apr 17
1986	May 3
1987	Apr 9
1992	Apr 28
1993	Apr 27
1994	Apr 7
1995	Apr 9
1996	May 13
1997	Apr 18
1998	Apr 17
1999	Apr 25
2000	Apr 22
2001	Apr 19
2002	May 21
2003	Apr 25
2004	Apr 27
2006	May 6
2007	Apr 16
2008	May 1
2009	Apr 23
2010	May 11
2011	Apr 22
2012	Apr 28
2013	May 13
2025	May 9

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1894	184
1895	132
1896	179
1897	188
1898	189
1899	165
1900	183
1901	152
1902	156
1903	169
1904	182
1911	172
1912	170
1913	134
1914	186
1915	171
1916	158
1917	135
1918	151
1919	167
1920	164
1921	145
1922	166
1923	147
1924	154
1925	133
1926	144
1927	185
1928	134
1929	137
1930	152
1931	181
1932	156
1933	168
1934	167
1935	150
1936	161
1937	134
1938	163
1940	137
1941	158
1942	136
1943	134
1944	164
1945	116
1946	140
1947	138
1948	161
1949	140
1950	138
1951	155
1952	162
1953	146
1954	162
1955	175
1956	134
1958	148
1959	186
1960	171
1961	127
1962	185
1963	159
1964	173
1965	182
1966	148
1967	152
1968	151
1969	166
1970	162
1971	181
1972	171
1973	202
1974	137
1975	190
1976	138
1977	156
1978	158
1979	164
1980	161
1982	171
1983	149
1984	160
1985	181
1986	182
1992	170
1993	155
1994	225
1995	166
1996	150
1997	179
1998	187
1999	171
2000	167
2001	170
2002	145
2003	158
2004	160
2006	158
2007	194
2008	155
2009	169
2010	145
2011	162
2012	148
2013	159
2025	167

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

See the data as a table

Year	Growing-season temperature
1894	17.7 °C
1895	17.8 °C
1896	17.7 °C
1897	16.6 °C
1898	17.1 °C
1899	17.0 °C
1900	17.3 °C
1901	17.6 °C
1902	15.7 °C
1903	15.8 °C
1904	15.1 °C
1911	17.7 °C
1912	16.3 °C
1913	16.9 °C
1914	16.7 °C
1915	15.7 °C
1916	16.8 °C
1917	14.9 °C
1918	16.3 °C
1919	17.2 °C
1920	15.9 °C
1921	19.0 °C
1922	17.2 °C
1923	16.2 °C
1924	14.8 °C
1925	17.3 °C
1926	15.6 °C
1927	15.8 °C
1928	15.8 °C
1929	16.1 °C
1930	17.6 °C
1931	18.2 °C
1932	17.0 °C
1933	18.0 °C
1934	18.3 °C
1935	15.7 °C
1936	17.6 °C
1937	17.1 °C
1938	16.9 °C
1940	15.7 °C
1941	17.5 °C
1942	16.6 °C
1943	16.1 °C
1944	17.0 °C
1945	15.1 °C
1946	16.0 °C
1947	16.3 °C
1948	17.3 °C
1949	16.9 °C
1950	14.6 °C
1951	15.7 °C
1952	17.2 °C
1953	17.1 °C
1954	16.8 °C
1955	18.6 °C
1956	16.3 °C
1957	16.9 °C
1958	16.7 °C
1959	18.1 °C
1960	16.8 °C
1961	16.5 °C
1962	17.0 °C
1963	17.0 °C
1964	17.6 °C
1965	16.6 °C
1966	16.3 °C
1967	15.8 °C
1968	16.9 °C
1969	16.8 °C
1970	17.7 °C
1971	17.0 °C
1972	16.3 °C
1973	17.2 °C
1974	16.2 °C
1975	16.7 °C
1976	16.8 °C
1977	18.3 °C
1978	17.2 °C
1979	16.4 °C
1980	17.5 °C
1982	16.3 °C
1983	17.4 °C
1984	16.9 °C
1985	17.7 °C
1986	17.8 °C
1987	18.7 °C
1992	16.2 °C
1993	17.2 °C
1994	19.0 °C
1995	19.1 °C
1996	16.6 °C
1997	16.5 °C
1998	18.6 °C
1999	18.1 °C
2000	16.6 °C
2001	17.2 °C
2002	16.9 °C
2003	15.9 °C
2004	16.1 °C
2006	16.9 °C
2007	16.7 °C
2008	16.2 °C
2009	15.4 °C
2010	17.9 °C
2011	16.3 °C
2012	17.9 °C
2013	16.1 °C
2025	16.6 °C

What this means for you: Since 1894, Pewaukee'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 Waukesha Wwtp (NOAA GHCN-Daily). Years with too many missing days are left out.

Nearby towns

Sussex Hartland Waukesha Merton Lannon Nashotah