When to plant in Morrison, IL

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

Safe to plant out

May 14

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 10

1 year in 10 by Sep 24

Frost-free days

166

median, 1991–2020

Station used: Morrison · 1.7 km away · station 193 m, town 207 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 19 – Apr 2	May 14 – May 28	Jul 8
Sweet pepper	Mar 5 – Mar 19	May 14 – May 28	Jul 13
Lettuce (leaf)	Feb 23 – Mar 2	Mar 30 – Apr 13	May 9
Peas	—	Mar 30 – Apr 27	May 24
Bush beans	—	May 7 – May 28	Jun 26
Carrot	—	Apr 9 – May 21	Jun 8
Beet	—	Apr 9 – May 21	May 29
Potato	—	Apr 9 – Apr 30	Jun 18
Kale	Feb 23 – Mar 9	Apr 6 – Apr 20	May 19
Broccoli	Feb 16 – Mar 2	Mar 30 – Apr 20	May 29
Cucumber	Apr 16 – Apr 23	May 14 – May 28	Jul 3
Summer squash and zucchini	Apr 16 – Apr 23	May 14 – May 28	Jun 28
Winter squash	Apr 16 – Apr 23	May 14 – May 28	Aug 2
Sweet corn	—	May 7 – May 28	Jul 6
Onion (from sets)	—	Mar 30 – Apr 20	Jun 28
Garlic	—	Sep 26 – Oct 24 (fall)	following summer
Spinach	—	Mar 30 – Apr 27	May 7
Basil	Apr 2 – Apr 16	May 14 – May 28	Jul 10

Plan all 65 crops for Morrison

Morrison'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
1897	May 31
1898	Apr 27
1899	Apr 20
1900	May 4
1901	Apr 21
1902	Apr 24
1903	May 1
1904	Apr 21
1905	Apr 22
1906	May 9
1907	May 16
1908	May 3
1909	May 4
1910	May 14
1911	May 4
1912	Apr 23
1913	May 11
1914	Apr 20
1915	Apr 17
1916	May 2
1917	May 23
1918	May 1
1919	Apr 26
1920	May 14
1921	May 16
1922	Apr 29
1923	May 8
1926	Apr 26
1927	Apr 24
1928	May 12
1929	May 19
1930	Apr 26
1931	Apr 30
1932	Apr 18
1933	Apr 27
1934	Apr 28
1936	Apr 23
1937	Apr 16
1938	Apr 22
1939	May 3
1940	Apr 19
1941	Mar 30
1942	Apr 20
1943	May 1
1944	May 5
1945	May 9
1946	Apr 27
1947	May 9
1948	Apr 17
1949	Apr 24
1950	May 1
1951	Apr 23
1952	Apr 16
1953	Apr 27
1954	May 20
1955	Apr 8
1956	Apr 30
1957	May 5
1958	May 7
1959	Apr 22
1960	May 1
1961	May 1
1962	Apr 20
1963	May 23
1964	Apr 15
1965	May 29
1966	May 10
1967	May 3
1968	Apr 15
1969	Apr 29
1970	Apr 10
1971	Apr 30
1972	Apr 26
1973	Apr 14
1974	Apr 24
1975	Apr 21
1976	May 4
1977	Apr 30
1978	May 6
1980	May 10
1981	May 12
1983	May 9
1984	Apr 24
1985	Apr 10
1987	Apr 9
1988	Apr 21
1989	May 7
1991	Apr 2
1992	May 27
1993	Apr 22
1994	May 2
1995	Apr 25
1996	May 2
1997	May 16
1998	Apr 19
1999	Apr 19
2000	Apr 12
2001	Apr 19
2002	May 21
2003	Apr 23
2004	May 3
2005	May 5
2007	Apr 16
2008	Apr 30
2009	Apr 16
2010	Apr 18
2011	May 4
2012	Apr 23
2013	May 13
2014	Apr 23
2015	May 1
2016	Apr 14
2017	Apr 7
2018	Apr 29
2019	Apr 28
2020	May 12
2021	May 12
2022	Apr 28
2023	Apr 27
2024	Apr 22
2025	Apr 16
2026	May 7

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1897	155
1898	169
1899	158
1900	165
1901	150
1902	172
1903	169
1904	184
1905	172
1906	153
1907	148
1908	148
1909	160
1910	160
1911	172
1912	158
1913	133
1914	187
1915	171
1916	136
1917	110
1918	141
1919	167
1920	139
1921	144
1922	165
1923	128
1926	152
1927	172
1928	134
1929	156
1930	173
1932	170
1933	168
1934	182
1936	161
1937	174
1938	184
1939	150
1940	179
1941	211
1942	156
1943	147
1944	159
1945	146
1946	156
1947	139
1948	182
1949	152
1950	176
1951	167
1952	169
1953	162
1954	149
1955	193
1956	142
1957	158
1958	146
1959	172
1960	171
1961	149
1962	161
1963	158
1964	165
1965	133
1966	144
1967	161
1968	172
1969	167
1970	182
1972	171
1973	202
1974	150
1975	163
1976	140
1977	165
1978	154
1980	147
1981	142
1983	157
1984	154
1985	174
1987	176
1988	167
1989	139
1991	170
1992	124
1993	160
1994	160
1995	149
1996	161
1997	151
1998	178
1999	168
2000	177
2001	169
2002	125
2003	158
2004	152
2005	170
2007	194
2008	180
2009	176
2010	169
2011	150
2012	153
2013	159
2014	171
2015	168
2016	200
2017	204
2018	165
2019	166
2020	145
2021	163
2022	162
2023	165
2024	175
2025	189

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

See the data as a table

Year	Growing-season temperature
1896	19.7 °C
1897	19.1 °C
1898	19.0 °C
1899	19.3 °C
1900	18.6 °C
1901	18.3 °C
1902	17.3 °C
1903	17.4 °C
1904	16.8 °C
1905	18.1 °C
1906	18.6 °C
1907	16.2 °C
1908	17.9 °C
1909	17.2 °C
1910	17.9 °C
1911	18.8 °C
1912	18.0 °C
1913	19.1 °C
1914	19.2 °C
1915	17.4 °C
1916	18.4 °C
1917	16.8 °C
1918	17.7 °C
1919	19.4 °C
1920	18.3 °C
1921	20.7 °C
1922	19.6 °C
1923	18.8 °C
1924	17.3 °C
1925	19.9 °C
1926	18.2 °C
1927	18.3 °C
1928	17.9 °C
1929	18.0 °C
1930	19.2 °C
1931	19.7 °C
1932	19.2 °C
1933	19.6 °C
1934	20.7 °C
1936	20.1 °C
1937	19.4 °C
1938	19.1 °C
1939	19.2 °C
1940	18.4 °C
1941	20.2 °C
1942	19.0 °C
1943	18.4 °C
1944	19.5 °C
1945	17.9 °C
1946	18.6 °C
1947	18.5 °C
1948	19.0 °C
1949	18.6 °C
1950	17.5 °C
1951	17.8 °C
1952	19.5 °C
1953	19.0 °C
1954	18.9 °C
1955	20.1 °C
1956	18.8 °C
1957	18.6 °C
1958	18.1 °C
1959	19.9 °C
1960	18.7 °C
1961	17.6 °C
1962	18.7 °C
1963	18.8 °C
1964	19.1 °C
1965	18.2 °C
1966	17.6 °C
1967	17.5 °C
1968	18.6 °C
1969	18.7 °C
1970	19.4 °C
1971	18.9 °C
1972	18.7 °C
1973	19.0 °C
1974	18.1 °C
1975	18.3 °C
1976	17.3 °C
1977	18.7 °C
1978	18.1 °C
1980	18.2 °C
1981	17.8 °C
1982	17.4 °C
1983	18.1 °C
1984	17.4 °C
1985	18.3 °C
1987	19.4 °C
1988	19.4 °C
1989	17.5 °C
1991	19.6 °C
1992	16.6 °C
1993	17.6 °C
1994	18.0 °C
1995	18.3 °C
1996	17.2 °C
1997	17.3 °C
1998	19.3 °C
1999	18.7 °C
2000	18.5 °C
2001	18.9 °C
2002	18.2 °C
2003	17.4 °C
2004	18.2 °C
2005	19.7 °C
2007	19.2 °C
2008	18.5 °C
2009	17.6 °C
2010	19.4 °C
2011	17.9 °C
2012	18.5 °C
2013	17.2 °C
2014	17.2 °C
2015	17.5 °C
2016	18.7 °C
2018	17.8 °C
2019	18.0 °C
2020	17.6 °C
2021	18.4 °C
2022	17.9 °C
2023	18.3 °C
2024	18.6 °C
2025	18.5 °C

What this means for you: Since 1897, Morrison'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 Morrison (NOAA GHCN-Daily). Years with too many missing days are left out.

Nearby towns

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