When to plant in Windsor, MO

Planting dates worked out from Windsor'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 18

1 year in 10 by Oct 6

Frost-free days

179

median, 1991–2020

Station used: Clinton · 26.5 km away · station 235 m, town 278 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 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 13 – Apr 10	May 7
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 4 – Nov 1 (fall)	following summer
Spinach	—	Mar 13 – Apr 10	Apr 20
Basil	Mar 21 – Apr 4	May 2 – May 16	Jun 28

Plan all 65 crops for Windsor

Windsor'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
1907	May 4
1908	Apr 30
1909	May 1
1910	Apr 24
1912	May 17
1913	Apr 29
1914	Apr 20
1915	Apr 2
1916	Apr 26
1917	Apr 9
1918	Apr 21
1919	Apr 26
1920	Apr 14
1921	Apr 18
1922	Apr 18
1923	Apr 8
1924	Apr 17
1925	Mar 28
1926	Apr 13
1928	Apr 19
1929	Apr 12
1930	Mar 28
1931	Apr 22
1932	Mar 23
1933	Apr 14
1934	Mar 31
1935	Apr 16
1936	Apr 22
1937	Apr 10
1938	Apr 10
1939	Apr 12
1940	Apr 13
1941	Mar 29
1942	Apr 10
1943	Apr 20
1944	May 6
1945	Apr 5
1946	Apr 12
1947	Mar 30
1948	Apr 14
1949	Apr 19
1950	Apr 15
1951	May 13
1952	Apr 16
1953	Apr 27
1955	Apr 8
1956	Apr 25
1957	Apr 14
1958	Apr 29
1959	Apr 23
1962	Apr 17
1963	May 1
1964	Apr 14
1967	Apr 27
1970	Apr 4
1971	May 2
1972	Apr 9
1973	Apr 13
1974	Apr 9
1975	Apr 5
1976	May 3
1977	Apr 1
1978	Apr 23
1979	Apr 7
1980	Apr 15
1981	Apr 6
1982	Apr 22
1983	Apr 19
1984	Apr 2
1985	Apr 10
1988	Apr 29
1989	May 8
1991	Apr 25
1992	Apr 28
1993	Apr 23
1994	Apr 8
1995	Apr 14
1996	Apr 30
1997	May 2
1998	Apr 2
1999	Apr 18
2001	Apr 19
2002	Apr 6
2003	Apr 12
2005	May 3
2006	Apr 10
2007	Apr 16
2009	Apr 15
2014	May 16
2015	Apr 6
2016	Apr 9
2017	Apr 8
2018	Apr 21
2020	Apr 18

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1907	160
1908	152
1909	163
1912	131
1913	173
1914	189
1915	189
1916	176
1917	181
1918	193
1919	175
1920	197
1921	197
1922	181
1923	196
1925	195
1926	193
1928	213
1929	195
1930	202
1931	192
1932	196
1933	193
1934	210
1935	171
1936	183
1937	186
1938	195
1939	184
1940	205
1941	212
1942	169
1943	178
1944	158
1945	186
1946	212
1947	222
1948	185
1949	190
1952	172
1953	162
1955	192
1956	164
1957	167
1958	154
1959	168
1962	189
1963	180
1967	154
1970	193
1971	181
1972	192
1973	205
1974	210
1975	197
1976	166
1977	194
1978	183
1979	180
1980	192
1981	199
1982	180
1983	199
1984	180
1988	158
1989	138
1991	163
1992	157
1993	169
1994	197
1995	160
1996	171
1997	177
1998	217
1999	179
2001	180
2002	189
2003	185
2005	174
2006	185
2014	168
2015	206
2016	214

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

See the data as a table

Year	Growing-season temperature
1907	20.3 °C
1908	21.4 °C
1909	21.8 °C
1912	22.1 °C
1913	23.6 °C
1914	22.4 °C
1915	20.6 °C
1916	21.8 °C
1917	20.3 °C
1918	21.9 °C
1919	21.6 °C
1920	20.7 °C
1921	22.7 °C
1922	23.0 °C
1923	22.6 °C
1924	22.0 °C
1925	23.5 °C
1926	21.7 °C
1928	20.7 °C
1929	22.0 °C
1930	23.3 °C
1931	22.7 °C
1932	21.9 °C
1933	23.0 °C
1934	23.5 °C
1935	20.9 °C
1936	24.7 °C
1937	21.7 °C
1938	22.0 °C
1939	22.3 °C
1940	20.6 °C
1941	22.5 °C
1942	21.3 °C
1943	21.4 °C
1944	21.3 °C
1945	20.2 °C
1946	21.3 °C
1947	21.6 °C
1948	21.6 °C
1949	21.2 °C
1952	20.8 °C
1953	21.4 °C
1955	21.5 °C
1956	20.8 °C
1957	20.2 °C
1958	19.8 °C
1959	21.1 °C
1961	18.9 °C
1962	21.0 °C
1963	21.9 °C
1964	21.1 °C
1966	19.8 °C
1967	19.3 °C
1969	20.6 °C
1970	21.3 °C
1971	20.5 °C
1972	20.9 °C
1973	20.4 °C
1974	20.2 °C
1975	20.9 °C
1976	20.3 °C
1977	22.1 °C
1978	21.5 °C
1979	20.3 °C
1980	22.6 °C
1981	21.2 °C
1982	20.3 °C
1983	20.9 °C
1984	20.2 °C
1985	20.3 °C
1988	20.6 °C
1989	18.7 °C
1991	22.4 °C
1993	20.1 °C
1994	20.0 °C
1995	20.1 °C
1996	20.1 °C
1997	19.5 °C
1998	21.8 °C
1999	20.6 °C
2001	21.3 °C
2002	21.2 °C
2003	20.2 °C
2004	19.8 °C
2005	21.3 °C
2006	20.9 °C
2007	21.2 °C
2009	19.3 °C
2014	20.6 °C
2015	21.5 °C
2016	21.8 °C
2018	22.0 °C
2020	20.4 °C

What this means for you: Since 1907, Windsor'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 Clinton (NOAA GHCN-Daily). Years with too many missing days are left out.

Nearby towns

Whiteman Air Force Base Lincoln Knob Noster La Monte Clinton Cole Camp