When to plant in Duchesne, UT

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

Safe to plant out

May 31

1 year in 10 has a later frost

Average last frost

May 11

about a 50% chance of a later one

Average first fall frost

Oct 1

1 year in 10 by Sep 18

Frost-free days

146

median, 1991–2020

Station used: Duchesne · 0.9 km away · station 1692 m, town 1682 m. How we match towns to stations

This season

Plan your garden.

Build my Duchesne plan

Planting dates for common crops

Crop	Start indoors	Plant out or sow	Harvest from
Tomato	Apr 5 – Apr 19	May 31 – Jun 14	Jul 25
Sweet pepper	Mar 22 – Apr 5	May 31 – Jun 14	Jul 30
Lettuce (leaf)	Mar 9 – Mar 16	Apr 13 – Apr 27	May 23
Peas	—	Mar 30 – Apr 27	May 24
Bush beans	—	May 24 – Jun 14	Jul 13
Carrot	—	Apr 20 – Jun 1	Jun 19
Beet	—	Apr 13 – May 25	Jun 2
Potato	—	Apr 20 – May 11	Jun 29
Kale	Mar 2 – Mar 16	Apr 13 – Apr 27	May 26
Broccoli	Mar 2 – Mar 16	Apr 13 – May 4	Jun 12
Cucumber	May 3 – May 10	May 31 – Jun 14	Jul 20
Summer squash and zucchini	May 3 – May 10	May 31 – Jun 14	Jul 15
Winter squash	May 3 – May 10	May 31 – Jun 14	Aug 19
Sweet corn	—	May 24 – Jun 14	Jul 23
Onion (from sets)	—	Apr 13 – May 4	Jul 12
Garlic	—	Sep 17 – Oct 15 (fall)	following summer
Spinach	—	Mar 30 – Apr 27	May 7
Basil	Apr 19 – May 3	May 31 – Jun 14	Jul 27

Plan all 65 crops for Duchesne

Duchesne'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
1907	May 15
1908	Jun 23
1909	May 25
1910	May 22
1911	Jun 9
1912	Jun 18
1913	May 6
1914	May 13
1915	Jun 14
1916	Jun 7
1917	Jun 13
1918	May 30
1919	Jun 2
1920	Jun 2
1921	May 30
1922	May 17
1923	Jun 2
1924	Jun 20
1925	Jun 7
1926	May 14
1927	Jun 2
1928	May 6
1929	Jun 18
1930	Jun 24
1931	May 30
1932	Jun 8
1933	May 28
1934	Jun 4
1935	May 31
1936	May 11
1937	Jun 6
1938	May 9
1939	Jun 18
1940	Apr 26
1941	Apr 25
1942	May 28
1943	Jun 3
1944	May 4
1945	Jun 16
1946	May 12
1947	Jun 13
1949	May 20
1950	Jun 24
1952	May 10
1953	Jun 25
1954	Jun 7
1955	Jun 2
1956	May 15
1957	Apr 28
1958	May 13
1959	May 23
1960	May 31
1961	May 14
1962	May 19
1963	May 12
1964	May 10
1965	May 10
1966	May 22
1967	May 15
1968	May 25
1969	Apr 29
1970	May 2
1971	May 19
1972	May 3
1973	May 4
1981	May 17
1982	Jun 9
1983	May 18
1984	Jun 12
1985	May 20
1986	May 25
1987	Apr 23
1988	May 7
1989	Apr 28
1990	Jun 2
1991	May 11
1992	Apr 24
1993	May 8
1994	Apr 30
1995	May 13
1996	Apr 29
1997	May 3
1998	Apr 21
1999	Jun 5
2000	May 13
2001	Jun 13
2002	May 9
2003	May 20
2004	May 31
2005	Apr 30
2006	May 29
2007	May 24
2008	May 13
2009	May 9
2010	May 25
2011	May 31
2012	May 6
2013	May 3
2014	May 14
2015	Apr 21
2016	May 1
2017	May 20
2018	Apr 25
2019	May 2
2020	May 9
2021	Apr 24
2022	May 21
2023	Apr 29
2024	May 24
2026	May 7

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1908	66
1909	109
1910	94
1911	90
1912	79
1913	136
1914	123
1915	91
1916	95
1917	104
1918	108
1919	111
1920	99
1921	98
1922	124
1923	108
1924	90
1925	105
1926	123
1927	116
1928	130
1929	82
1930	93
1931	115
1932	83
1933	85
1934	97
1935	119
1936	125
1937	109
1938	154
1939	106
1940	160
1941	136
1942	113
1943	128
1944	134
1945	94
1946	129
1947	89
1949	122
1950	98
1953	96
1954	101
1955	116
1956	107
1957	145
1958	134
1959	129
1960	133
1961	132
1962	112
1963	154
1964	139
1965	128
1966	134
1967	120
1968	114
1969	156
1971	121
1972	170
1981	140
1983	124
1984	104
1985	126
1986	125
1987	147
1988	133
1989	162
1990	127
1991	146
1992	165
1993	154
1994	144
1995	131
1996	149
1997	158
1998	167
1999	114
2000	133
2001	113
2002	156
2003	120
2004	135
2005	157
2006	110
2007	123
2008	147
2009	135
2010	146
2011	128
2012	150
2013	147
2014	120
2015	188
2016	157
2017	127
2018	152
2019	157
2020	122
2021	173
2022	145
2023	146
2024	147

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

See the data as a table

Year	Growing-season temperature
1906	15.9 °C
1907	14.8 °C
1908	14.2 °C
1909	14.9 °C
1910	16.0 °C
1911	14.6 °C
1912	13.2 °C
1913	14.8 °C
1914	15.4 °C
1915	14.5 °C
1916	14.6 °C
1917	14.2 °C
1918	15.3 °C
1919	16.3 °C
1920	14.6 °C
1921	15.2 °C
1922	15.5 °C
1923	14.4 °C
1924	14.7 °C
1925	14.6 °C
1926	15.1 °C
1927	14.2 °C
1928	14.2 °C
1929	14.3 °C
1930	14.9 °C
1931	15.3 °C
1932	14.6 °C
1933	14.3 °C
1934	16.1 °C
1935	14.8 °C
1936	15.6 °C
1937	16.0 °C
1938	15.8 °C
1939	16.2 °C
1940	17.0 °C
1941	14.6 °C
1942	14.9 °C
1943	15.6 °C
1944	15.1 °C
1945	14.4 °C
1946	16.2 °C
1947	15.5 °C
1948	16.3 °C
1949	15.3 °C
1950	14.4 °C
1952	15.7 °C
1953	15.2 °C
1954	16.3 °C
1955	15.1 °C
1956	15.8 °C
1957	15.8 °C
1958	16.8 °C
1959	16.4 °C
1960	17.1 °C
1961	16.4 °C
1962	16.7 °C
1963	16.7 °C
1964	15.9 °C
1965	14.5 °C
1966	16.5 °C
1967	15.3 °C
1968	14.8 °C
1969	17.0 °C
1970	16.6 °C
1971	16.2 °C
1972	16.9 °C
1981	17.4 °C
1982	16.1 °C
1983	15.3 °C
1984	16.0 °C
1985	16.9 °C
1989	16.8 °C
1990	17.2 °C
1991	15.6 °C
1992	16.9 °C
1993	15.4 °C
1994	17.3 °C
1995	15.2 °C
1996	16.7 °C
2013	16.5 °C
2014	16.3 °C
2015	17.3 °C
2016	17.1 °C
2017	17.4 °C
2018	18.4 °C
2019	16.9 °C
2020	17.6 °C
2021	18.0 °C
2022	17.8 °C
2023	16.7 °C
2024	17.6 °C
2025	17.8 °C

What this means for you: Since 1907, Duchesne's last spring frost has come about 2 days earlier per decade, on average. The frost-free season has grown by about 4 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.

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

Nearby towns

Roosevelt Ballard Helper Spring Glen East Carbon City Carbonville