When to plant in Tooele, UT

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

Safe to plant out

May 22

1 year in 10 has a later frost

Average last frost

May 3

about a 50% chance of a later one

Average first fall frost

Oct 18

1 year in 10 by Oct 5

Frost-free days

170

median, 1991–2020

Station used: Tooele · 2.0 km away · station 1507 m, town 1537 m. How we match towns to stations

This season

Plan your garden.

Build my Tooele plan

Planting dates for common crops

Crop	Start indoors	Plant out or sow	Harvest from
Tomato	Mar 27 – Apr 10	May 22 – Jun 5	Jul 16
Sweet pepper	Mar 13 – Mar 27	May 22 – Jun 5	Jul 21
Lettuce (leaf)	Mar 1 – Mar 8	Apr 5 – Apr 19	May 15
Peas	—	Mar 22 – Apr 19	May 16
Bush beans	—	May 15 – Jun 5	Jul 4
Carrot	—	Apr 12 – May 24	Jun 11
Beet	—	Apr 5 – May 17	May 25
Potato	—	Apr 12 – May 3	Jun 21
Kale	Feb 22 – Mar 8	Apr 5 – Apr 19	May 18
Broccoli	Feb 22 – Mar 8	Apr 5 – Apr 26	Jun 4
Cucumber	Apr 24 – May 1	May 22 – Jun 5	Jul 11
Summer squash and zucchini	Apr 24 – May 1	May 22 – Jun 5	Jul 6
Winter squash	Apr 24 – May 1	May 22 – Jun 5	Aug 10
Sweet corn	—	May 15 – Jun 5	Jul 14
Onion (from sets)	—	Apr 5 – Apr 26	Jul 4
Garlic	—	Oct 4 – Nov 1 (fall)	following summer
Spinach	—	Mar 22 – Apr 19	Apr 29
Basil	Apr 10 – Apr 24	May 22 – Jun 5	Jul 18

Plan all 65 crops for Tooele

Tooele'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
1896	May 19
1897	May 7
1898	Jun 3
1899	May 2
1900	Apr 30
1901	Apr 27
1902	Jul 3
1903	May 17
1904	Apr 24
1905	May 10
1906	May 17
1907	Jun 15
1908	May 26
1909	May 16
1910	May 18
1911	May 10
1912	May 4
1913	May 2
1914	Jun 6
1915	May 3
1916	May 25
1917	Jun 13
1918	Apr 28
1919	May 31
1920	May 2
1921	Apr 27
1922	May 10
1923	Jun 1
1925	Apr 27
1926	May 9
1927	May 28
1928	Apr 21
1929	May 27
1930	May 9
1931	Apr 21
1932	May 25
1933	May 11
1934	Apr 4
1935	May 4
1936	May 6
1937	Apr 29
1938	May 19
1939	Apr 17
1940	Mar 15
1941	May 17
1942	May 12
1943	May 17
1944	Apr 20
1945	Jun 14
1946	Apr 10
1947	Apr 12
1948	May 10
1949	Apr 14
1950	May 7
1951	Apr 30
1952	Apr 9
1953	May 11
1954	May 2
1955	May 16
1956	May 14
1957	Apr 25
1958	Apr 26
1959	May 3
1960	Apr 26
1961	May 5
1962	Apr 30
1963	Apr 23
1964	May 7
1965	May 7
1966	Apr 28
1967	May 12
1968	May 6
1969	Apr 26
1970	May 11
1971	May 17
1972	May 1
1973	Apr 21
1974	Apr 29
1975	May 25
1976	Apr 28
1977	Apr 19
1978	May 19
1979	May 9
1980	May 24
1981	Apr 9
1982	May 28
1983	May 16
1984	May 7
1985	Apr 26
1986	May 9
1987	Apr 20
1988	May 6
1989	Apr 10
1990	Jun 1
1991	May 12
1992	Apr 24
1993	May 8
1994	Apr 29
1995	Jun 17
1996	Apr 28
1997	May 2
1998	Apr 18
1999	May 16
2000	May 11
2001	Jun 13
2002	May 8
2003	Apr 15
2004	Apr 29
2005	May 11
2006	Apr 19
2007	Apr 19
2008	May 2
2009	Apr 17
2010	May 7
2011	May 30
2012	Apr 7
2013	May 2
2014	Apr 28
2015	Apr 26
2016	Apr 15
2017	May 18
2018	Apr 18
2019	May 21
2020	Apr 17
2021	Apr 26
2022	May 10
2023	Apr 26
2024	May 24
2025	Apr 28
2026	Apr 29

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1896	161
1897	159
1898	119
1899	162
1900	146
1901	188
1902	120
1903	142
1904	175
1905	156
1906	153
1907	140
1908	121
1910	154
1911	152
1912	133
1913	143
1914	119
1915	173
1916	131
1917	125
1918	179
1919	130
1920	169
1921	180
1922	171
1923	117
1925	155
1926	137
1927	129
1928	144
1929	148
1930	155
1931	187
1932	146
1933	142
1934	172
1935	165
1936	168
1937	185
1938	166
1939	192
1940	233
1941	128
1942	168
1943	155
1944	200
1945	105
1946	181
1947	195
1948	148
1949	176
1950	145
1951	173
1952	207
1953	162
1954	175
1955	143
1956	158
1957	161
1958	177
1959	157
1960	170
1961	169
1962	190
1963	190
1964	162
1965	132
1966	167
1967	156
1968	154
1969	159
1970	136
1971	135
1972	175
1973	187
1974	175
1975	135
1976	172
1977	194
1978	121
1979	165
1980	151
1981	187
1982	132
1983	175
1984	160
1985	156
1986	155
1987	182
1988	184
1989	198
1990	128
1991	145
1992	165
1993	173
1994	156
1995	124
1996	171
1997	162
1998	198
1999	153
2000	174
2001	132
2002	157
2003	197
2004	178
2005	172
2006	181
2007	162
2008	160
2009	170
2010	173
2011	148
2012	200
2013	165
2014	182
2015	191
2016	187
2017	126
2018	179
2019	136
2020	188
2021	168
2022	165
2023	182
2024	152
2025	166

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

See the data as a table

Year	Growing-season temperature
1896	16.6 °C
1897	18.3 °C
1898	17.9 °C
1899	17.3 °C
1900	18.1 °C
1901	18.3 °C
1902	17.7 °C
1903	17.7 °C
1904	17.7 °C
1905	17.7 °C
1906	16.8 °C
1907	16.5 °C
1908	16.0 °C
1910	18.0 °C
1911	17.0 °C
1912	15.4 °C
1913	17.0 °C
1914	17.2 °C
1915	17.3 °C
1916	17.2 °C
1917	17.1 °C
1918	17.7 °C
1919	20.0 °C
1920	17.7 °C
1921	18.2 °C
1922	18.9 °C
1923	17.2 °C
1925	17.4 °C
1926	18.0 °C
1927	17.3 °C
1928	18.1 °C
1929	17.6 °C
1930	18.3 °C
1931	19.9 °C
1932	18.7 °C
1933	18.6 °C
1934	20.5 °C
1935	18.8 °C
1936	19.3 °C
1937	18.9 °C
1938	18.6 °C
1939	19.0 °C
1940	20.2 °C
1941	17.6 °C
1942	18.6 °C
1943	19.3 °C
1944	18.1 °C
1945	17.7 °C
1946	19.3 °C
1947	18.7 °C
1948	18.8 °C
1949	19.1 °C
1950	17.2 °C
1951	17.7 °C
1952	18.9 °C
1953	17.8 °C
1954	18.9 °C
1955	17.6 °C
1956	18.6 °C
1957	17.6 °C
1958	19.0 °C
1959	18.1 °C
1960	19.1 °C
1961	18.7 °C
1962	18.5 °C
1963	18.3 °C
1964	17.3 °C
1965	16.2 °C
1966	19.1 °C
1967	17.7 °C
1968	16.6 °C
1969	18.6 °C
1970	16.8 °C
1971	17.2 °C
1972	17.6 °C
1973	17.1 °C
1974	18.1 °C
1975	16.4 °C
1976	17.8 °C
1977	18.4 °C
1978	17.6 °C
1979	18.8 °C
1980	18.1 °C
1981	19.0 °C
1982	17.2 °C
1983	17.3 °C
1984	18.1 °C
1985	19.3 °C
1986	17.9 °C
1987	19.6 °C
1988	20.3 °C
1989	19.3 °C
1990	19.5 °C
1991	17.2 °C
1992	18.8 °C
1993	16.6 °C
1994	20.1 °C
1997	19.2 °C
1998	18.6 °C
1999	18.4 °C
2000	21.2 °C
2001	21.1 °C
2002	20.8 °C
2003	20.8 °C
2004	19.5 °C
2005	19.2 °C
2006	20.7 °C
2007	21.4 °C
2008	19.1 °C
2009	19.8 °C
2010	18.9 °C
2011	18.7 °C
2012	20.6 °C
2013	19.5 °C
2014	19.2 °C
2015	19.4 °C
2016	19.4 °C
2017	18.9 °C
2018	20.3 °C
2019	18.6 °C
2020	19.8 °C
2021	20.2 °C
2022	20.4 °C
2023	18.9 °C
2024	19.4 °C
2025	19.6 °C
2026	20.9 °C

What this means for you: Since 1896, Tooele'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 Tooele (NOAA GHCN-Daily). Years with too many missing days are left out.

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