When to plant in Mora, MN

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

Safe to plant out

May 21

1 year in 10 has a later frost

Average last frost

May 10

about a 50% chance of a later one

Average first fall frost

Sep 27

1 year in 10 by Sep 17

Frost-free days

143

median, 1991–2020

Station used: Mora · 1.6 km away · station 310 m, town 308 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 26 – Apr 9	May 21 – Jun 4	Jul 15
Sweet pepper	Mar 12 – Mar 26	May 21 – Jun 4	Jul 20
Lettuce (leaf)	Mar 14 – Mar 21	Apr 18 – May 2	May 28
Peas	—	Apr 18 – May 16	Jun 12
Bush beans	—	May 14 – Jun 4	Jul 3
Carrot	—	Apr 25 – Jun 6	Jun 24
Beet	—	Apr 25 – Jun 6	Jun 14
Potato	—	Apr 25 – May 16	Jul 4
Kale	Mar 14 – Mar 28	Apr 25 – May 9	Jun 7
Broccoli	Mar 7 – Mar 21	Apr 18 – May 9	Jun 17
Cucumber	Apr 23 – Apr 30	May 21 – Jun 4	Jul 10
Summer squash and zucchini	Apr 23 – Apr 30	May 21 – Jun 4	Jul 5
Winter squash	Apr 23 – Apr 30	May 21 – Jun 4	Aug 9
Sweet corn	—	May 14 – Jun 4	Jul 13
Onion (from sets)	—	Apr 18 – May 9	Jul 17
Garlic	—	Sep 13 – Oct 11 (fall)	following summer
Spinach	—	Apr 18 – May 16	May 26
Basil	Apr 9 – Apr 23	May 21 – Jun 4	Jul 17

Plan all 65 crops for Mora

Mora'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
1905	May 26
1906	May 20
1907	May 27
1908	May 31
1909	May 11
1910	Jun 5
1911	May 13
1912	May 16
1913	May 25
1914	May 15
1915	Jun 9
1916	May 18
1917	May 28
1918	May 13
1919	May 5
1920	May 14
1921	May 16
1922	Apr 30
1923	May 17
1924	May 21
1925	May 25
1926	May 22
1927	Apr 30
1928	May 12
1929	Jun 3
1930	May 24
1931	May 23
1932	May 2
1933	May 10
1934	May 15
1935	May 4
1936	May 3
1937	May 14
1938	May 24
1939	May 12
1940	May 9
1941	Apr 24
1942	May 16
1943	May 14
1944	May 9
1945	May 18
1946	Jun 3
1947	May 9
1948	May 8
1949	May 24
1950	May 2
1951	May 11
1952	Apr 24
1953	May 16
1954	May 20
1955	Apr 22
1956	May 16
1957	May 16
1958	May 9
1959	May 15
1960	May 12
1961	May 26
1962	Apr 23
1963	May 23
1964	Apr 20
1965	May 29
1966	May 10
1967	May 20
1968	May 5
1969	May 12
1970	May 17
1971	May 27
1972	May 10
1973	May 17
1974	May 25
1975	May 16
1976	May 18
1977	May 7
1978	May 10
1979	Jun 1
1981	May 19
1982	May 7
1983	May 25
1984	May 29
1985	Jun 4
1986	Jun 1
1988	Jun 30
1989	May 26
1990	Jun 4
1991	May 6
1993	May 16
1994	May 10
1995	May 6
1996	May 13
1997	May 21
1999	Apr 29
2000	May 27
2002	May 22
2003	May 3
2004	May 15
2005	May 13
2006	May 22
2007	May 17
2008	Apr 30
2009	Apr 29
2010	May 9
2011	May 4
2012	Apr 27
2013	May 13
2014	May 4
2015	May 20
2016	May 16
2017	Apr 29
2018	Apr 28
2019	May 10
2020	May 13
2021	May 30
2022	May 4
2023	May 4
2024	Apr 24
2025	May 4
2026	May 20

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1905	136
1906	129
1907	117
1908	93
1909	112
1910	60
1911	135
1912	129
1913	119
1914	132
1915	78
1916	119
1917	104
1918	113
1919	142
1920	139
1921	139
1922	161
1923	118
1924	130
1925	118
1926	125
1927	145
1928	134
1929	106
1930	126
1931	141
1932	144
1933	155
1934	123
1935	145
1936	148
1937	124
1938	148
1939	134
1940	125
1941	157
1942	128
1943	119
1944	142
1945	125
1946	91
1947	135
1948	147
1949	127
1950	144
1951	135
1952	152
1953	128
1954	124
1955	141
1956	130
1957	132
1958	144
1959	124
1960	140
1961	119
1962	149
1963	112
1964	147
1965	119
1966	138
1967	126
1968	151
1969	119
1970	118
1971	111
1972	134
1973	123
1974	98
1975	118
1976	114
1977	147
1978	133
1979	109
1981	120
1982	94
1983	110
1984	92
1985	107
1986	85
1988	66
1989	108
1990	124
1991	136
1993	124
1994	152
1995	136
1997	122
1999	144
2000	116
2002	124
2003	148
2004	136
2006	121
2007	117
2008	155
2009	153
2010	146
2011	133
2012	143
2013	156
2014	131
2015	148
2016	144
2017	163
2018	153
2019	154
2020	127
2021	140
2022	146
2023	157
2024	162
2025	156

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

See the data as a table

Year	Growing-season temperature
1905	14.4 °C
1906	15.4 °C
1907	12.7 °C
1908	15.4 °C
1909	14.4 °C
1910	15.2 °C
1911	15.5 °C
1912	14.7 °C
1913	15.3 °C
1914	15.4 °C
1915	14.3 °C
1916	15.1 °C
1917	14.3 °C
1918	15.1 °C
1919	16.0 °C
1920	15.2 °C
1921	17.4 °C
1922	16.4 °C
1923	15.9 °C
1924	13.8 °C
1925	16.2 °C
1926	15.0 °C
1927	14.7 °C
1928	14.4 °C
1929	14.9 °C
1930	16.3 °C
1931	17.0 °C
1932	16.6 °C
1933	17.6 °C
1934	16.4 °C
1935	14.8 °C
1936	16.1 °C
1937	15.8 °C
1938	15.4 °C
1939	15.4 °C
1940	14.5 °C
1941	16.3 °C
1942	14.6 °C
1943	15.3 °C
1944	15.6 °C
1945	13.7 °C
1946	14.8 °C
1947	15.5 °C
1948	16.9 °C
1949	17.0 °C
1950	14.3 °C
1951	14.9 °C
1952	16.8 °C
1953	16.0 °C
1954	15.4 °C
1955	18.1 °C
1956	15.1 °C
1957	15.9 °C
1958	15.6 °C
1959	17.2 °C
1960	16.3 °C
1961	15.4 °C
1962	15.2 °C
1963	16.4 °C
1964	16.2 °C
1965	14.5 °C
1966	15.3 °C
1967	14.7 °C
1968	15.5 °C
1969	15.8 °C
1970	15.8 °C
1971	15.0 °C
1972	14.8 °C
1973	15.4 °C
1974	14.7 °C
1975	15.3 °C
1976	16.6 °C
1977	16.7 °C
1978	15.4 °C
1979	14.0 °C
1981	15.0 °C
1982	13.9 °C
1983	14.9 °C
1984	13.1 °C
1985	14.1 °C
1986	13.8 °C
1988	14.7 °C
1989	15.0 °C
1990	14.4 °C
1991	15.9 °C
1993	14.4 °C
1994	15.6 °C
1995	15.3 °C
1997	14.6 °C
1999	15.9 °C
2000	14.8 °C
2002	15.0 °C
2003	14.9 °C
2004	14.1 °C
2006	16.3 °C
2009	14.8 °C
2010	16.2 °C
2011	15.4 °C
2012	16.5 °C
2013	14.8 °C
2014	14.8 °C
2015	16.2 °C
2016	16.2 °C
2017	15.2 °C
2018	15.6 °C
2019	15.1 °C
2020	15.4 °C
2021	16.2 °C
2022	15.1 °C
2023	16.3 °C
2024	16.5 °C
2025	15.9 °C
2026	16.9 °C

What this means for you: Since 1905, Mora's last spring frost has stayed at about the same time of year. The frost-free season has grown by about 1 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.

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

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