When to plant in Brush, CO

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

Safe to plant out

May 14

1 year in 10 has a later frost

Average last frost

May 4

about a 50% chance of a later one

Average first fall frost

Oct 5

1 year in 10 by Sep 22

Frost-free days

156

median, 1991–2020

Station used: Ft Morgan · 20.9 km away · station 1334 m, town 1286 m. How we match towns to stations

This season

Plan your garden.

Build my Brush plan

Planting dates for common crops

Crop	Start indoors	Plant out or sow	Harvest from
Tomato	Mar 19 – Apr 2	May 14 – May 28	Jul 8
Sweet pepper	Mar 5 – Mar 19	May 14 – May 28	Jul 13
Lettuce (leaf)	Mar 2 – Mar 9	Apr 6 – Apr 20	May 16
Peas	—	Mar 25 – Apr 22	May 19
Bush beans	—	May 7 – May 28	Jun 26
Carrot	—	Apr 13 – May 25	Jun 12
Beet	—	Apr 10 – May 22	May 30
Potato	—	Apr 13 – May 4	Jun 22
Kale	Feb 23 – Mar 9	Apr 6 – Apr 20	May 19
Broccoli	Feb 23 – Mar 9	Apr 6 – Apr 27	Jun 5
Cucumber	Apr 16 – Apr 23	May 14 – May 28	Jul 3
Summer squash and zucchini	Apr 16 – Apr 23	May 14 – May 28	Jun 28
Winter squash	Apr 16 – Apr 23	May 14 – May 28	Aug 2
Sweet corn	—	May 7 – May 28	Jul 6
Onion (from sets)	—	Apr 6 – Apr 27	Jul 5
Garlic	—	Sep 21 – Oct 19 (fall)	following summer
Spinach	—	Mar 25 – Apr 22	May 2
Basil	Apr 2 – Apr 16	May 14 – May 28	Jul 10

Plan all 65 crops for Brush

Brush'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
1897	Apr 21
1898	May 5
1899	Jun 8
1900	May 3
1902	Apr 26
1903	May 23
1904	May 9
1907	May 27
1908	May 21
1909	May 15
1911	May 22
1912	May 14
1913	May 4
1914	Apr 19
1915	May 21
1916	May 16
1917	May 30
1918	Jun 30
1920	May 15
1921	Apr 29
1923	May 16
1924	May 16
1925	May 4
1926	Apr 25
1928	May 5
1929	May 6
1930	May 23
1931	May 22
1932	Apr 28
1933	May 13
1934	May 13
1935	May 5
1936	Apr 16
1937	Jun 5
1938	May 8
1939	May 9
1940	May 1
1941	Apr 22
1942	May 13
1943	May 24
1944	May 5
1945	May 15
1946	May 12
1947	Jun 12
1948	May 6
1949	Apr 20
1950	May 9
1951	May 1
1952	Apr 21
1953	May 14
1954	May 4
1955	Apr 28
1956	Apr 30
1957	May 17
1958	Apr 30
1959	Apr 25
1960	May 6
1961	May 14
1962	May 1
1963	Apr 30
1964	May 12
1965	May 10
1966	May 13
1967	May 4
1968	May 17
1969	Apr 29
1970	May 15
1971	Apr 27
1972	May 1
1973	Apr 27
1974	Apr 22
1975	May 7
1976	May 17
1977	Apr 21
1978	May 9
1979	May 11
1980	Apr 18
1981	May 10
1982	May 6
1983	May 12
1984	Apr 30
1985	Apr 27
1987	Apr 22
1988	May 4
1989	May 2
1990	May 10
1991	May 1
1992	Apr 26
1994	Apr 30
1995	May 3
1996	Apr 29
1997	Apr 27
1998	Apr 30
1999	May 11
2000	May 13
2008	May 14
2009	Apr 28
2010	May 13
2011	May 5
2012	Apr 8
2013	May 5
2014	May 14
2017	May 3
2019	May 21
2025	May 3

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1897	171
1898	123
1904	160
1907	133
1908	127
1909	130
1911	121
1912	122
1913	130
1914	168
1915	136
1916	121
1917	129
1920	133
1921	163
1923	135
1924	132
1925	155
1926	149
1928	140
1929	125
1930	145
1931	144
1932	159
1933	147
1934	124
1935	143
1936	163
1937	111
1938	162
1939	148
1940	166
1941	167
1942	128
1943	136
1944	159
1945	135
1946	133
1947	132
1948	152
1949	173
1950	151
1951	141
1952	165
1953	142
1954	162
1955	161
1956	166
1957	127
1958	153
1959	156
1960	166
1961	133
1962	130
1963	184
1964	137
1965	129
1966	140
1967	156
1968	141
1969	159
1970	133
1971	142
1972	174
1973	166
1974	151
1975	146
1976	133
1977	163
1978	134
1979	145
1980	175
1981	160
1982	153
1987	167
1988	171
1989	156
1990	150
1991	157
1992	164
1994	144
1996	169
1998	170
1999	139
2000	133
2008	145
2009	157
2010	156
2011	159
2012	179
2013	152
2014	121
2017	158
2019	137

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

See the data as a table

Year	Growing-season temperature
1898	17.7 °C
1900	17.9 °C
1903	16.4 °C
1907	16.5 °C
1909	17.3 °C
1911	18.1 °C
1912	15.8 °C
1913	17.7 °C
1914	18.2 °C
1915	16.3 °C
1916	16.9 °C
1917	16.5 °C
1919	17.8 °C
1920	15.1 °C
1921	17.5 °C
1923	14.4 °C
1924	13.9 °C
1925	16.5 °C
1926	16.3 °C
1928	15.1 °C
1929	15.8 °C
1930	17.3 °C
1931	18.2 °C
1932	17.9 °C
1933	17.3 °C
1934	18.3 °C
1935	16.0 °C
1936	18.2 °C
1937	18.0 °C
1938	17.7 °C
1939	18.6 °C
1940	18.2 °C
1941	18.1 °C
1942	17.6 °C
1943	18.1 °C
1944	17.4 °C
1945	16.8 °C
1946	17.8 °C
1947	17.5 °C
1948	18.3 °C
1949	17.4 °C
1950	17.3 °C
1951	16.6 °C
1952	18.8 °C
1953	17.2 °C
1954	18.7 °C
1955	18.3 °C
1956	17.9 °C
1957	16.3 °C
1958	17.8 °C
1959	17.7 °C
1960	18.0 °C
1961	16.6 °C
1962	17.8 °C
1963	19.5 °C
1964	17.7 °C
1965	16.8 °C
1966	18.0 °C
1967	16.6 °C
1968	16.9 °C
1969	18.8 °C
1970	17.9 °C
1971	17.4 °C
1972	17.8 °C
1973	17.3 °C
1974	18.0 °C
1975	17.5 °C
1976	18.0 °C
1977	19.5 °C
1978	18.4 °C
1979	17.9 °C
1980	18.4 °C
1981	18.9 °C
1982	17.9 °C
1983	17.8 °C
1984	18.4 °C
1985	18.3 °C
1986	18.2 °C
1987	18.7 °C
1988	19.0 °C
1989	18.2 °C
1990	18.3 °C
1991	18.5 °C
1992	18.2 °C
1994	17.9 °C
1996	18.9 °C
1997	18.6 °C
1998	19.4 °C
1999	18.8 °C
2000	19.6 °C
2007	18.2 °C
2008	16.9 °C
2009	16.5 °C
2010	17.6 °C
2011	17.2 °C
2012	19.0 °C
2013	17.2 °C
2014	17.3 °C
2017	18.9 °C
2019	18.2 °C

What this means for you: Since 1897, Brush'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 Ft Morgan (NOAA GHCN-Daily). Years with too many missing days are left out.

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