When to plant in Mount Carmel, IL

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

Safe to plant out

Apr 22

1 year in 10 has a later frost

Average last frost

Apr 10

about a 50% chance of a later one

Average first fall frost

Oct 29

1 year in 10 by Oct 18

Frost-free days

201

median, 1991–2020

Station used: 1 Wsw Princeton · 16.1 km away · station 137 m, town 137 m. How we match towns to stations

This season

Plan your garden.

Build my Mount Carmel plan

Planting dates for common crops

Crop	Start indoors	Plant out or sow	Harvest from
Tomato	Feb 25 – Mar 11	Apr 22 – May 6	Jun 16
Sweet pepper	Feb 11 – Feb 25	Apr 22 – May 6	Jun 21
Lettuce (leaf)	Feb 6 – Feb 13	Mar 13 – Mar 27	Apr 22
Peas	—	Mar 11 – Apr 8	May 5
Bush beans	—	Apr 15 – May 6	Jun 4
Carrot	—	Mar 21 – May 2	May 20
Beet	—	Mar 21 – May 2	May 10
Potato	—	Mar 21 – Apr 11	May 30
Kale	Feb 4 – Feb 18	Mar 18 – Apr 1	Apr 30
Broccoli	Jan 30 – Feb 13	Mar 13 – Apr 3	May 12
Cucumber	Mar 25 – Apr 1	Apr 22 – May 6	Jun 11
Summer squash and zucchini	Mar 25 – Apr 1	Apr 22 – May 6	Jun 6
Winter squash	Mar 25 – Apr 1	Apr 22 – May 6	Jul 11
Sweet corn	—	Apr 15 – May 6	Jun 14
Onion (from sets)	—	Mar 13 – Apr 3	Jun 11
Garlic	—	Oct 15 – Nov 12 (fall)	following summer
Spinach	—	Mar 11 – Apr 8	Apr 18
Basil	Mar 11 – Mar 25	Apr 22 – May 6	Jun 18

Plan all 65 crops for Mount Carmel

Mount Carmel'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
1899	Apr 9
1900	Apr 14
1902	Apr 8
1903	May 1
1904	Apr 21
1905	Apr 19
1906	May 7
1907	Apr 21
1908	Apr 12
1909	Apr 24
1910	May 14
1911	Apr 2
1912	Apr 3
1913	Apr 5
1914	Apr 12
1915	Apr 13
1916	Apr 10
1917	Apr 14
1918	Jun 23
1919	Apr 26
1920	Apr 14
1921	Apr 18
1922	Mar 8
1923	Apr 9
1924	Apr 2
1925	May 25
1926	Apr 20
1927	Apr 25
1928	Apr 26
1929	Apr 17
1930	Apr 25
1931	Apr 28
1932	Apr 27
1933	Mar 26
1934	Apr 28
1935	Apr 16
1936	Apr 23
1937	Apr 11
1938	Apr 10
1940	Apr 21
1941	Mar 30
1942	Apr 12
1943	Apr 21
1944	May 7
1945	Apr 19
1946	Apr 27
1947	Apr 17
1948	Apr 3
1949	Apr 19
1950	Apr 21
1951	Apr 23
1952	Mar 28
1953	Apr 20
1954	Apr 4
1955	Apr 8
1956	Apr 24
1957	Apr 14
1958	Apr 8
1959	Apr 23
1960	Apr 10
1961	Apr 18
1962	Apr 20
1963	May 1
1964	Apr 9
1965	Mar 31
1966	May 10
1967	May 3
1968	Apr 15
1969	Apr 30
1970	Apr 7
1971	Apr 7
1972	Apr 9
1973	Apr 13
1974	Apr 9
1975	Apr 16
1976	Apr 27
1977	Apr 6
1978	May 2
1979	Apr 7
1980	Apr 16
1981	Mar 24
1982	Apr 10
1983	Apr 23
1984	Apr 1
1985	Apr 10
1986	Apr 23
1987	Apr 5
1989	Apr 11
1990	Apr 12
1991	Mar 31
1992	Apr 28
1993	Apr 22
1994	Apr 7
1995	Apr 5
1996	Apr 10
1997	Apr 18
1998	Apr 5
1999	Mar 25
2000	Apr 9
2001	Apr 18
2002	Apr 5
2003	Apr 25
2004	Apr 14
2005	Mar 18
2006	Mar 27
2007	Apr 14
2008	Apr 16
2009	Apr 8
2010	Mar 26
2011	Mar 31
2012	Apr 12
2013	Apr 4
2014	Apr 17
2015	Mar 29
2016	Apr 10
2017	Mar 22
2018	Apr 18
2019	Apr 21
2020	May 10
2021	Apr 23
2022	Apr 20
2024	Apr 6
2025	Apr 9
2026	Mar 28

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1899	173
1900	186
1902	203
1903	169
1904	184
1905	185
1906	156
1907	174
1908	183
1909	170
1910	166
1911	203
1912	203
1913	198
1914	197
1915	177
1916	182
1917	171
1918	130
1919	189
1920	197
1921	177
1922	246
1923	196
1924	220
1925	137
1926	183
1927	176
1928	150
1929	190
1930	177
1931	190
1932	183
1933	226
1934	183
1935	170
1936	186
1937	185
1938	196
1940	199
1941	211
1942	168
1943	178
1944	173
1945	198
1946	199
1947	204
1948	197
1949	195
1950	197
1951	168
1952	188
1953	193
1955	199
1956	198
1957	188
1958	204
1959	172
1961	179
1962	186
1963	181
1964	177
1965	207
1966	162
1967	148
1968	171
1969	175
1970	210
1971	210
1972	193
1973	206
1974	175
1975	210
1977	189
1978	158
1979	185
1980	179
1981	212
1982	193
1983	194
1984	214
1985	211
1986	200
1987	185
1989	190
1990	189
1991	198
1992	173
1993	188
1994	228
1995	211
1996	191
1997	186
1998	212
1999	211
2000	180
2001	192
2002	206
2003	195
2004	211
2006	210
2007	205
2008	193
2009	192
2010	215
2011	223
2012	201
2013	202
2014	197
2015	228
2016	215
2017	221
2018	185
2019	188
2020	158
2021	193
2024	233
2025	214

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

See the data as a table

Year	Growing-season temperature
1899	21.5 °C
1900	21.9 °C
1901	21.1 °C
1902	20.9 °C
1903	20.6 °C
1904	19.9 °C
1905	21.7 °C
1906	22.1 °C
1907	19.2 °C
1908	21.4 °C
1909	20.5 °C
1910	19.9 °C
1911	22.3 °C
1912	21.1 °C
1913	22.3 °C
1914	22.0 °C
1915	20.9 °C
1916	21.3 °C
1917	19.6 °C
1918	20.5 °C
1919	21.1 °C
1920	19.8 °C
1921	22.8 °C
1922	21.9 °C
1923	21.4 °C
1924	20.5 °C
1925	22.4 °C
1926	21.3 °C
1927	20.7 °C
1928	20.6 °C
1929	21.5 °C
1930	22.2 °C
1931	22.4 °C
1932	22.0 °C
1933	22.5 °C
1934	22.5 °C
1935	21.0 °C
1936	23.4 °C
1937	21.6 °C
1938	22.0 °C
1940	20.8 °C
1941	22.9 °C
1942	21.6 °C
1943	21.5 °C
1944	21.9 °C
1945	20.3 °C
1946	20.5 °C
1947	20.8 °C
1948	21.0 °C
1949	20.8 °C
1950	19.5 °C
1951	20.4 °C
1952	21.8 °C
1953	22.1 °C
1955	21.9 °C
1956	20.9 °C
1957	21.2 °C
1958	20.3 °C
1959	21.2 °C
1960	21.0 °C
1961	19.7 °C
1962	20.5 °C
1963	20.4 °C
1964	21.9 °C
1965	21.8 °C
1966	20.3 °C
1968	20.8 °C
1969	21.0 °C
1970	22.1 °C
1971	20.7 °C
1972	21.3 °C
1973	21.3 °C
1974	20.0 °C
1975	20.7 °C
1976	19.7 °C
1977	22.0 °C
1978	21.2 °C
1979	20.1 °C
1980	21.5 °C
1981	20.7 °C
1982	20.2 °C
1983	21.0 °C
1984	20.5 °C
1985	20.9 °C
1986	21.7 °C
1987	22.0 °C
1989	20.3 °C
1990	20.3 °C
1991	22.6 °C
1992	20.2 °C
1993	21.0 °C
1994	20.7 °C
1995	22.2 °C
1996	20.4 °C
1997	19.6 °C
1998	21.6 °C
1999	21.1 °C
2000	20.4 °C
2001	21.6 °C
2002	22.3 °C
2003	20.7 °C
2004	21.2 °C
2005	21.9 °C
2006	21.1 °C
2007	21.8 °C
2008	20.3 °C
2009	20.3 °C
2010	22.6 °C
2011	21.2 °C
2012	21.8 °C
2013	20.1 °C
2014	20.2 °C
2015	20.8 °C
2016	21.4 °C
2017	20.9 °C
2018	21.4 °C
2019	21.2 °C
2020	20.1 °C
2021	20.6 °C
2022	20.9 °C
2024	22.5 °C
2025	21.9 °C
2026	22.7 °C

What this means for you: Since 1899, Mount Carmel'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 1 Wsw Princeton (NOAA GHCN-Daily). Years with too many missing days are left out.

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