When to plant in Saint Marys, KS

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

Safe to plant out

Apr 26

1 year in 10 has a later frost

Average last frost

Apr 14

about a 50% chance of a later one

Average first fall frost

Oct 22

1 year in 10 by Oct 7

Frost-free days

190

median, 1991–2020

Station used: Wamego 4 W · 25.9 km away · station 355 m, town 291 m. How we match towns to stations

This season

Plan your garden.

Build my Saint Marys plan

Planting dates for common crops

Crop	Start indoors	Plant out or sow	Harvest from
Tomato	Mar 1 – Mar 15	Apr 26 – May 10	Jun 20
Sweet pepper	Feb 15 – Mar 1	Apr 26 – May 10	Jun 25
Lettuce (leaf)	Feb 10 – Feb 17	Mar 17 – Mar 31	Apr 26
Peas	—	Mar 12 – Apr 9	May 6
Bush beans	—	Apr 19 – May 10	Jun 8
Carrot	—	Mar 24 – May 5	May 23
Beet	—	Mar 20 – May 1	May 9
Potato	—	Mar 24 – Apr 14	Jun 2
Kale	Feb 5 – Feb 19	Mar 19 – Apr 2	May 1
Broccoli	Feb 3 – Feb 17	Mar 17 – Apr 7	May 16
Cucumber	Mar 29 – Apr 5	Apr 26 – May 10	Jun 15
Summer squash and zucchini	Mar 29 – Apr 5	Apr 26 – May 10	Jun 10
Winter squash	Mar 29 – Apr 5	Apr 26 – May 10	Jul 15
Sweet corn	—	Apr 19 – May 10	Jun 18
Onion (from sets)	—	Mar 17 – Apr 7	Jun 15
Garlic	—	Oct 8 – Nov 5 (fall)	following summer
Spinach	—	Mar 12 – Apr 9	Apr 19
Basil	Mar 15 – Mar 29	Apr 26 – May 10	Jun 22

Plan all 65 crops for Saint Marys

Saint Marys'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
1913	Apr 13
1914	Apr 20
1915	Apr 3
1916	Apr 9
1917	May 12
1918	May 2
1919	Apr 11
1920	Apr 28
1922	Apr 18
1923	May 9
1924	Apr 10
1925	May 1
1926	Apr 19
1927	Apr 21
1928	Apr 28
1929	Apr 12
1930	Apr 2
1931	Apr 27
1932	Apr 27
1933	Apr 16
1934	Apr 21
1935	Apr 15
1936	Apr 17
1937	Apr 11
1938	Apr 22
1939	Apr 19
1940	Apr 18
1941	Mar 29
1942	Apr 10
1943	Apr 20
1944	May 6
1945	May 17
1946	May 11
1947	Apr 16
1948	Apr 1
1949	Apr 16
1950	Apr 20
1951	Apr 16
1952	Apr 11
1953	Apr 20
1954	Apr 4
1955	Apr 8
1956	Apr 24
1957	Apr 13
1958	Apr 29
1959	Apr 22
1960	Apr 9
1961	Apr 18
1962	Apr 15
1963	Apr 4
1964	Apr 9
1965	Apr 28
1966	Apr 21
1967	Apr 27
1968	Apr 5
1969	Mar 31
1970	Apr 5
1971	Apr 10
1972	Apr 9
1973	Apr 11
1974	Apr 17
1975	Apr 20
1976	May 3
1977	Apr 5
1978	Apr 21
1979	Apr 28
1980	May 9
1981	May 11
1982	May 5
1984	Apr 19
1985	Apr 9
1986	Apr 22
1987	Apr 5
1988	Apr 27
1989	Apr 19
1990	Apr 14
1991	Mar 30
1992	Apr 22
1993	Apr 9
1994	May 1
1995	Apr 13
1996	Apr 23
1997	Apr 17
1998	Apr 18
1999	Apr 18
2000	Apr 12
2002	Apr 4
2003	Apr 10
2004	Apr 11
2007	Apr 15
2008	May 5
2009	Apr 15
2010	Apr 9
2011	Apr 5
2012	Mar 10
2013	May 4
2014	Apr 19
2015	Apr 5
2016	Apr 13
2017	Apr 11
2018	Apr 20
2019	Apr 15
2020	Apr 18
2021	Apr 23
2022	Apr 27
2023	Apr 24
2024	Apr 6
2025	Apr 9
2026	Mar 29

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1913	189
1914	189
1915	188
1916	172
1917	148
1919	182
1920	155
1922	176
1923	164
1924	195
1925	160
1926	187
1927	194
1928	185
1929	193
1930	197
1931	187
1932	166
1933	191
1934	189
1935	173
1936	187
1937	185
1938	150
1939	163
1940	201
1941	212
1942	166
1943	177
1944	158
1946	182
1947	204
1948	198
1949	192
1950	197
1951	190
1952	177
1953	189
1954	208
1955	198
1956	197
1957	187
1958	181
1959	178
1960	193
1961	184
1962	192
1963	207
1964	182
1965	166
1966	177
1967	183
1968	206
1969	196
1970	205
1971	203
1972	192
1973	200
1974	202
1975	178
1976	157
1977	189
1978	168
1979	159
1980	155
1981	149
1985	206
1986	196
1987	180
1988	167
1989	157
1990	178
1991	189
1992	177
1993	183
1994	176
1995	161
1996	190
1997	192
1998	206
1999	168
2002	191
2003	198
2004	207
2007	195
2008	174
2009	177
2010	202
2011	197
2012	210
2013	173
2014	195
2015	206
2016	212
2017	199
2018	177
2019	179
2020	190
2021	193
2022	172
2023	186
2024	192
2025	204

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

See the data as a table

Year	Growing-season temperature
1913	22.9 °C
1914	22.5 °C
1915	19.8 °C
1916	21.0 °C
1917	19.7 °C
1919	21.6 °C
1920	20.1 °C
1922	22.0 °C
1923	21.1 °C
1924	20.6 °C
1925	22.4 °C
1926	21.6 °C
1927	20.7 °C
1928	20.5 °C
1929	21.4 °C
1930	22.3 °C
1931	22.2 °C
1932	21.8 °C
1933	22.6 °C
1934	24.4 °C
1935	21.3 °C
1936	24.1 °C
1937	22.8 °C
1938	22.4 °C
1939	22.8 °C
1940	21.8 °C
1941	22.5 °C
1942	21.5 °C
1943	21.8 °C
1944	22.0 °C
1945	20.2 °C
1946	21.2 °C
1947	21.6 °C
1948	21.9 °C
1949	21.2 °C
1950	19.8 °C
1951	19.6 °C
1952	22.5 °C
1953	22.1 °C
1954	23.4 °C
1955	23.3 °C
1956	22.9 °C
1957	20.9 °C
1958	21.1 °C
1959	21.8 °C
1960	21.8 °C
1961	20.1 °C
1962	21.9 °C
1963	22.9 °C
1964	22.2 °C
1965	21.7 °C
1966	21.0 °C
1967	20.3 °C
1968	20.8 °C
1969	21.6 °C
1970	22.0 °C
1971	21.1 °C
1972	21.1 °C
1973	21.1 °C
1974	21.1 °C
1975	21.0 °C
1976	21.0 °C
1977	22.6 °C
1978	22.1 °C
1979	20.6 °C
1980	22.4 °C
1981	21.3 °C
1984	20.5 °C
1985	21.0 °C
1986	21.9 °C
1987	22.0 °C
1988	22.2 °C
1989	21.1 °C
1990	21.6 °C
1991	22.5 °C
1992	20.1 °C
1993	20.5 °C
1994	21.4 °C
1995	20.6 °C
1996	21.1 °C
1997	20.9 °C
1998	22.5 °C
1999	21.2 °C
2000	23.2 °C
2002	22.7 °C
2003	21.5 °C
2004	21.4 °C
2007	20.7 °C
2008	19.1 °C
2009	19.0 °C
2010	21.7 °C
2011	21.3 °C
2012	22.2 °C
2013	19.9 °C
2014	20.4 °C
2015	20.9 °C
2016	21.6 °C
2017	20.8 °C
2018	21.5 °C
2019	20.8 °C
2020	20.1 °C
2021	20.9 °C
2022	20.8 °C
2023	21.4 °C
2024	20.9 °C
2025	20.4 °C
2026	21.8 °C

What this means for you: Since 1913, Saint Marys'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 Wamego 4 W (NOAA GHCN-Daily). Years with too many missing days are left out.

Nearby towns

Rossville Wamego Silver Lake Topeka Auburn Holton