When to plant in Cohasset, MN

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

Safe to plant out

May 26

1 year in 10 has a later frost

Average last frost

May 16

about a 50% chance of a later one

Average first fall frost

Sep 23

1 year in 10 by Sep 14

Frost-free days

130

median, 1991–2020

Station used: Grand Rapids Forestry Lab · 9.5 km away · station 399 m, town 391 m. How we match towns to stations

This season

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Planting dates for common crops

Crop	Start indoors	Plant out or sow	Harvest from
Tomato	Mar 31 – Apr 14	May 26 – Jun 9	Jul 20
Sweet pepper	Mar 17 – Mar 31	May 26 – Jun 9	Jul 25
Lettuce (leaf)	Mar 16 – Mar 23	Apr 20 – May 4	May 30
Peas	—	Apr 20 – May 18	Jun 14
Bush beans	—	May 19 – Jun 9	Jul 8
Carrot	—	Apr 29 – Jun 10	Jun 28
Beet	—	Apr 29 – Jun 10	Jun 18
Potato	—	Apr 29 – May 20	Jul 8
Kale	Mar 16 – Mar 30	Apr 27 – May 11	Jun 9
Broccoli	Mar 9 – Mar 23	Apr 20 – May 11	Jun 19
Cucumber	Apr 28 – May 5	May 26 – Jun 9	Jul 15
Summer squash and zucchini	Apr 28 – May 5	May 26 – Jun 9	Jul 10
Winter squash	Apr 28 – May 5	May 26 – Jun 9	Aug 14
Sweet corn	—	May 19 – Jun 9	Jul 18
Onion (from sets)	—	Apr 20 – May 11	Jul 19
Garlic	—	Sep 9 – Oct 7 (fall)	following summer
Spinach	—	Apr 20 – May 18	May 28
Basil	Apr 14 – Apr 28	May 26 – Jun 9	Jul 22

Plan all 65 crops for Cohasset

Cohasset'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
1916	Jun 5
1917	Jun 20
1918	May 23
1919	May 22
1920	Jun 3
1921	Jun 4
1922	Apr 30
1923	May 19
1924	Jun 8
1925	Jun 10
1926	Jun 26
1927	May 18
1928	Jun 4
1929	Jun 7
1930	May 30
1931	May 23
1932	May 17
1933	May 10
1934	May 23
1935	May 24
1936	Jun 4
1937	Jun 9
1938	May 24
1939	May 17
1940	Jun 20
1941	May 23
1942	Jun 14
1943	Jun 5
1944	May 9
1945	Jun 6
1946	Jun 4
1947	Jun 12
1948	May 29
1949	Jun 7
1950	May 17
1951	Jun 4
1952	Jun 1
1953	Jun 7
1954	May 26
1955	May 17
1956	Jun 1
1957	May 18
1958	Jun 14
1959	May 22
1960	May 12
1961	May 26
1962	Jun 2
1963	May 23
1964	Jun 4
1965	May 29
1966	May 11
1967	May 20
1968	Jun 15
1969	Jun 13
1970	May 15
1971	May 27
1972	Jun 10
1973	May 17
1974	May 17
1975	May 12
1976	May 18
1977	May 9
1978	May 14
1979	Jun 1
1980	May 15
1981	May 19
1982	May 7
1983	May 26
1984	May 29
1985	Jun 3
1986	May 22
1987	May 23
1988	May 17
1989	May 27
1990	May 20
1991	May 19
1992	May 26
1993	May 21
1994	May 10
1995	May 6
1996	May 13
1997	May 21
1998	May 10
1999	May 9
2000	May 19
2001	Apr 27
2002	May 24
2003	May 3
2004	May 28
2005	May 16
2006	May 21
2007	May 16
2008	May 27
2009	Jun 3
2010	May 9
2011	May 16
2012	May 12
2013	May 13
2014	May 17
2015	May 20
2016	May 16
2017	Apr 30
2018	May 12
2019	May 20
2020	May 13
2021	May 29
2022	May 5
2023	May 3
2024	Apr 25
2025	May 3
2026	May 13

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1916	68
1917	69
1918	79
1919	97
1920	79
1921	118
1922	120
1923	112
1924	69
1925	93
1926	77
1927	97
1928	110
1929	89
1930	98
1931	123
1932	121
1933	133
1934	88
1936	104
1937	94
1938	118
1939	125
1940	63
1941	95
1942	70
1943	97
1944	120
1945	101
1946	89
1947	95
1948	116
1949	99
1950	94
1951	111
1952	106
1953	97
1954	118
1955	116
1956	97
1957	124
1958	104
1959	115
1960	137
1961	100
1962	109
1963	112
1964	99
1965	104
1966	126
1967	124
1968	105
1969	102
1970	134
1971	113
1972	86
1973	117
1974	106
1975	122
1976	125
1977	106
1978	133
1979	109
1980	126
1981	123
1982	135
1983	119
1984	108
1985	109
1986	97
1987	124
1988	139
1989	118
1990	125
1991	123
1992	115
1993	116
1994	139
1995	136
1996	141
1997	141
1998	134
1999	133
2000	118
2001	148
2002	122
2003	147
2004	84
2005	129
2006	136
2007	118
2008	128
2009	118
2010	145
2011	120
2012	128
2013	125
2014	117
2015	131
2016	149
2017	158
2018	139
2019	130
2020	126
2021	140
2022	145
2024	161
2025	156

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

See the data as a table

Year	Growing-season temperature
1916	13.7 °C
1917	12.8 °C
1918	12.0 °C
1919	14.4 °C
1920	13.3 °C
1921	16.0 °C
1922	15.3 °C
1923	14.4 °C
1924	11.9 °C
1925	14.9 °C
1926	13.9 °C
1927	13.3 °C
1928	13.1 °C
1929	13.0 °C
1930	14.3 °C
1931	14.9 °C
1932	14.5 °C
1933	15.1 °C
1934	14.1 °C
1935	13.2 °C
1936	14.4 °C
1937	14.5 °C
1939	14.3 °C
1940	13.7 °C
1941	15.5 °C
1942	13.5 °C
1943	13.6 °C
1944	13.8 °C
1945	11.9 °C
1946	13.5 °C
1947	13.4 °C
1948	15.0 °C
1949	14.8 °C
1950	12.2 °C
1951	13.2 °C
1952	14.7 °C
1953	13.6 °C
1954	13.2 °C
1955	15.7 °C
1956	12.6 °C
1957	13.9 °C
1958	13.5 °C
1959	14.7 °C
1960	14.0 °C
1961	13.9 °C
1962	13.4 °C
1963	14.7 °C
1964	14.1 °C
1965	13.0 °C
1966	13.5 °C
1967	13.1 °C
1968	13.8 °C
1969	14.3 °C
1970	14.7 °C
1971	14.0 °C
1972	13.9 °C
1973	14.3 °C
1974	13.7 °C
1975	14.1 °C
1976	15.6 °C
1977	15.6 °C
1978	15.0 °C
1979	13.4 °C
1980	15.6 °C
1981	14.8 °C
1982	14.2 °C
1983	14.6 °C
1984	14.4 °C
1985	13.8 °C
1986	14.1 °C
1987	15.7 °C
1988	15.9 °C
1989	14.0 °C
1990	14.2 °C
1991	15.6 °C
1992	12.7 °C
1993	13.2 °C
1994	14.4 °C
1995	14.6 °C
1996	13.7 °C
1997	14.2 °C
1998	16.1 °C
1999	15.3 °C
2000	14.2 °C
2001	15.4 °C
2002	14.9 °C
2003	15.3 °C
2004	13.6 °C
2005	15.3 °C
2006	16.3 °C
2007	15.4 °C
2008	13.8 °C
2009	14.0 °C
2010	15.4 °C
2011	14.6 °C
2012	15.4 °C
2013	13.9 °C
2014	13.8 °C
2015	15.1 °C
2016	15.1 °C
2017	14.7 °C
2018	14.8 °C
2019	14.2 °C
2020	14.9 °C
2021	16.4 °C
2022	14.1 °C
2024	16.1 °C
2025	15.7 °C
2026	15.7 °C

What this means for you: Since 1916, Cohasset's last spring frost has come about 2 days earlier per decade, on average. The frost-free season has grown by about 5 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.

Source: daily records from Grand Rapids Forestry Lab (NOAA GHCN-Daily). Years with too many missing days are left out.

Nearby towns

Grand Rapids Coleraine Keewatin Hibbing Chisholm Crosslake