When to plant in Quincy, CA

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

Safe to plant out

Jun 8

1 year in 10 has a later frost

Average last frost

May 20

about a 50% chance of a later one

Average first fall frost

Sep 24

1 year in 10 by Sep 5

Frost-free days

132

median, 1991–2020

Station used: Quincy · 0.1 km away · station 1042 m, town 1046 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	Apr 13 – Apr 27	Jun 8 – Jun 22	Aug 2
Sweet pepper	Mar 30 – Apr 13	Jun 8 – Jun 22	Aug 7
Lettuce (leaf)	Mar 18 – Mar 25	Apr 22 – May 6	Jun 1
Peas	—	Apr 8 – May 6	Jun 2
Bush beans	—	Jun 1 – Jun 22	Jul 21
Carrot	—	Apr 29 – Jun 10	Jun 28
Beet	—	Apr 22 – Jun 3	Jun 11
Potato	—	Apr 29 – May 20	Jul 8
Kale	Mar 11 – Mar 25	Apr 22 – May 6	Jun 4
Broccoli	Mar 11 – Mar 25	Apr 22 – May 13	Jun 21
Cucumber	May 11 – May 18	Jun 8 – Jun 22	Jul 28
Summer squash and zucchini	May 11 – May 18	Jun 8 – Jun 22	Jul 23
Winter squash	May 11 – May 18	Jun 8 – Jun 22	Aug 27
Sweet corn	—	Jun 1 – Jun 22	Jul 31
Onion (from sets)	—	Apr 22 – May 13	Jul 21
Garlic	—	Sep 10 – Oct 8 (fall)	following summer
Spinach	—	Apr 8 – May 6	May 16
Basil	Apr 27 – May 11	Jun 8 – Jun 22	Aug 4

Plan all 65 crops for Quincy

Quincy'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 18
1897	May 8
1898	Jun 3
1899	May 20
1900	May 28
1901	Apr 27
1902	May 20
1903	May 23
1904	Apr 23
1905	May 23
1906	May 28
1907	Jun 15
1908	Jun 22
1909	Jul 6
1910	Jun 23
1911	May 27
1912	Jul 2
1913	Jun 20
1914	Jun 5
1915	Jun 26
1916	May 23
1917	Jun 11
1919	Jun 14
1920	Jul 14
1921	Jul 3
1922	May 22
1923	Jun 13
1924	Jun 19
1925	May 8
1926	May 26
1927	May 31
1928	Jul 8
1929	Jul 14
1930	Jun 25
1931	May 18
1934	Jul 7
1935	Jul 7
1936	May 31
1937	Jun 12
1938	Jun 18
1940	Apr 24
1941	May 18
1942	May 13
1943	Jun 26
1944	Jun 20
1945	Jun 16
1946	Jun 22
1947	Jul 9
1951	Jun 7
1952	Jun 16
1953	Jul 1
1954	Jun 17
1955	Jul 7
1956	Jun 12
1957	Jun 16
1958	May 14
1959	Jun 10
1960	Jun 21
1961	Jul 6
1962	Jun 5
1963	May 10
1964	May 23
1965	Jul 10
1966	Jul 13
1967	May 14
1968	Jun 30
1969	May 20
1970	May 20
1971	May 18
1972	Jun 11
1976	Jul 3
1991	May 31
1993	May 14
1995	Jun 8
2000	May 31
2001	Jun 4
2002	May 23
2003	May 18
2004	May 12
2005	Apr 21
2006	May 29
2007	Jun 7
2008	May 13
2009	Apr 30
2010	May 25
2011	Jun 3
2012	Jun 10
2013	May 24
2014	May 12
2015	May 13
2016	Apr 27
2017	May 18
2018	May 2
2019	May 2
2020	Jun 8
2021	May 21
2022	May 21
2023	Apr 25
2024	May 8
2025	Apr 20
2026	May 19

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1896	117
1897	122
1898	87
1899	111
1900	100
1901	132
1902	128
1903	112
1904	176
1906	110
1907	78
1908	61
1909	41
1910	49
1911	63
1912	18
1913	55
1915	73
1916	104
1919	81
1920	53
1921	51
1922	91
1923	96
1924	26
1925	107
1926	96
1927	84
1928	37
1929	7
1930	55
1931	96
1934	66
1935	56
1936	46
1937	57
1938	55
1940	148
1941	103
1942	79
1943	44
1945	57
1952	71
1954	49
1955	9
1956	53
1957	44
1958	119
1959	78
1960	62
1961	23
1962	95
1963	105
1964	97
1965	47
1966	1
1967	122
1968	68
1969	77
1970	95
1971	107
1991	144
1995	113
2000	96
2001	46
2002	106
2003	122
2004	131
2005	143
2006	109
2007	109
2008	148
2009	152
2010	146
2011	124
2013	125
2014	142
2015	162
2016	148
2017	127
2018	134
2019	149
2020	136
2021	131
2022	147
2023	169
2024	162
2025	174

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

See the data as a table

Year	Growing-season temperature
1895	14.6 °C
1896	14.5 °C
1897	15.4 °C
1898	15.3 °C
1899	14.0 °C
1900	14.6 °C
1901	14.8 °C
1902	14.4 °C
1903	14.3 °C
1904	15.7 °C
1906	14.2 °C
1907	13.4 °C
1908	13.6 °C
1909	14.0 °C
1910	14.8 °C
1911	13.3 °C
1912	12.7 °C
1913	14.6 °C
1915	14.7 °C
1916	15.5 °C
1917	15.0 °C
1918	15.7 °C
1919	16.6 °C
1920	16.1 °C
1921	15.2 °C
1922	15.4 °C
1923	14.8 °C
1924	15.7 °C
1925	15.8 °C
1926	15.6 °C
1927	13.9 °C
1928	14.9 °C
1929	13.9 °C
1930	14.6 °C
1931	15.9 °C
1933	14.6 °C
1934	15.7 °C
1935	14.9 °C
1936	15.3 °C
1937	14.3 °C
1938	15.0 °C
1940	15.9 °C
1941	13.8 °C
1942	14.1 °C
1943	14.4 °C
1945	14.2 °C
1946	14.7 °C
1947	14.6 °C
1950	15.7 °C
1951	15.5 °C
1952	15.9 °C
1953	14.0 °C
1954	14.8 °C
1955	13.5 °C
1956	14.8 °C
1957	14.9 °C
1958	16.1 °C
1959	15.9 °C
1960	15.8 °C
1961	15.6 °C
1962	15.5 °C
1963	14.8 °C
1964	14.6 °C
1965	15.0 °C
1966	16.2 °C
1967	15.7 °C
1968	15.7 °C
1969	16.6 °C
1970	15.4 °C
1971	15.2 °C
1972	15.0 °C
1976	14.6 °C
1985	16.3 °C
1989	15.1 °C
1991	16.8 °C
1994	18.1 °C
1995	16.6 °C
2000	16.2 °C
2001	16.5 °C
2002	16.5 °C
2003	17.0 °C
2004	16.8 °C
2005	16.0 °C
2006	16.6 °C
2007	16.4 °C
2008	16.7 °C
2009	17.4 °C
2010	15.0 °C
2011	14.9 °C
2012	15.9 °C
2013	16.1 °C
2014	16.6 °C
2015	16.4 °C
2016	16.4 °C
2017	16.7 °C
2018	16.3 °C
2019	15.7 °C
2020	16.8 °C
2021	17.9 °C
2022	16.9 °C
2023	16.6 °C
2024	17.9 °C
2025	17.6 °C
2026	17.2 °C

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

Nearby towns

East Quincy Greenville Westwood Portola Chester Berry Creek