When to plant in Davenport, WA

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

Safe to plant out

Jun 20

1 year in 10 has a later frost

Average last frost

Jun 2

about a 50% chance of a later one

Average first fall frost

Sep 12

1 year in 10 by Aug 30

Frost-free days

102

median, 1991–2020

Station used: Davenport · 1.4 km away · station 739 m, town 724 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 25 – May 9	Jun 20 – Jul 4	Aug 14
Sweet pepper	Apr 11 – Apr 25	Jun 20 – Jul 4	Aug 19
Lettuce (leaf)	Mar 31 – Apr 7	May 5 – May 19	Jun 14
Peas	—	Apr 21 – May 19	Jun 15
Bush beans	—	Jun 13 – Jul 4	Aug 2
Carrot	—	May 12 – Jun 23	Jul 11
Beet	—	May 5 – Jun 16	Jun 24
Potato	—	May 12 – Jun 2	Jul 21
Kale	Mar 24 – Apr 7	May 5 – May 19	Jun 17
Broccoli	Mar 24 – Apr 7	May 5 – May 26	Jul 4
Cucumber	May 23 – May 30	Jun 20 – Jul 4	Aug 9
Summer squash and zucchini	May 23 – May 30	Jun 20 – Jul 4	Aug 4
Winter squash Season likely too short	May 23 – May 30	Jun 20 – Jul 4	Sep 8
Sweet corn	—	Jun 13 – Jul 4	Aug 12
Onion (from sets)	—	May 5 – May 26	Aug 3
Garlic	—	Aug 29 – Sep 26 (fall)	following summer
Spinach	—	Apr 21 – May 19	May 29
Basil	May 9 – May 23	Jun 20 – Jul 4	Aug 16

Plan all 65 crops for Davenport

Davenport'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
1893	Jun 19
1894	Jun 11
1910	May 28
1911	May 27
1913	Jul 14
1914	Jun 22
1915	May 1
1916	Jun 20
1917	Jun 11
1918	Jun 2
1919	Jun 11
1920	Jun 1
1922	May 22
1923	May 31
1924	May 27
1925	Jun 3
1926	Jun 9
1927	May 27
1928	Jun 17
1929	May 28
1930	May 26
1931	Jun 30
1932	Jun 5
1933	Jun 18
1934	Jun 23
1935	Jun 23
1936	Apr 27
1937	May 12
1938	May 9
1939	Jun 6
1940	May 6
1941	May 19
1942	May 17
1943	Jul 12
1944	May 22
1945	Apr 28
1946	May 10
1947	May 17
1948	May 4
1949	Jun 30
1950	May 28
1951	May 29
1952	Jun 13
1953	May 23
1954	Jun 18
1955	May 31
1956	May 13
1957	Apr 26
1958	May 13
1959	May 11
1960	May 22
1961	May 11
1962	Jun 6
1963	May 8
1964	May 25
1967	May 25
1969	May 1
1970	May 13
1971	May 20
1972	May 25
1973	Jun 18
1974	May 27
1975	May 25
1976	Jun 26
1977	Jun 2
1978	May 23
1979	May 29
1981	Jun 13
1982	Jun 6
1983	May 9
1984	Jun 1
1987	Jun 2
1988	Jun 11
1989	May 20
1991	Jun 17
1992	May 22
1993	Jun 23
1994	Jun 19
1995	May 27
1997	May 21
1998	May 16
1999	Jun 7
2000	May 28
2001	Jun 18
2002	Jun 8
2003	May 19
2004	May 10
2005	May 23
2006	May 13
2007	May 14
2008	May 11
2009	May 20
2010	May 25
2011	Jun 25
2012	Jul 4
2013	Jun 14
2014	Jun 17
2015	Jun 13
2016	Jun 15
2017	Jun 14
2018	Jun 12
2019	Jun 7
2020	May 8
2021	Jun 11
2022	May 22
2023	Jun 19
2024	Jun 28
2025	May 21
2026	Jun 12

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1893	94
1910	119
1913	34
1914	81
1915	134
1917	47
1918	126
1919	109
1920	52
1922	84
1923	113
1924	113
1925	86
1926	100
1927	110
1928	83
1929	87
1930	119
1931	68
1932	104
1933	80
1934	82
1935	85
1936	136
1937	94
1938	157
1939	121
1940	171
1941	124
1942	137
1943	91
1944	117
1945	143
1946	134
1947	160
1948	141
1949	98
1950	121
1951	119
1952	92
1953	123
1954	102
1955	121
1956	131
1957	145
1958	129
1959	142
1960	106
1961	140
1962	97
1963	163
1964	106
1969	136
1970	117
1972	117
1973	104
1974	122
1976	99
1977	111
1978	115
1979	140
1981	100
1983	132
1984	88
1987	105
1991	96
1993	88
1994	105
1995	82
1998	133
2001	102
2002	87
2003	142
2004	132
2005	104
2006	109
2007	128
2008	111
2009	110
2010	95
2011	94
2012	59
2013	102
2014	86
2015	81
2016	79
2017	71
2018	79
2019	111
2020	122
2021	72
2022	117
2023	91
2024	84
2025	127

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

See the data as a table

Year	Growing-season temperature
1893	14.3 °C
1894	14.5 °C
1909	13.8 °C
1910	15.1 °C
1913	14.5 °C
1914	13.9 °C
1915	14.7 °C
1917	13.6 °C
1918	15.7 °C
1919	14.9 °C
1920	13.8 °C
1921	14.1 °C
1922	15.6 °C
1923	15.2 °C
1924	16.0 °C
1925	16.3 °C
1926	15.0 °C
1927	14.2 °C
1928	15.1 °C
1929	14.3 °C
1930	15.2 °C
1931	15.0 °C
1932	14.5 °C
1933	13.7 °C
1934	15.2 °C
1935	13.8 °C
1936	15.8 °C
1937	14.8 °C
1938	15.9 °C
1939	15.9 °C
1940	16.9 °C
1941	15.0 °C
1942	14.8 °C
1943	14.7 °C
1944	15.4 °C
1945	14.3 °C
1946	14.5 °C
1947	14.6 °C
1948	13.9 °C
1949	15.1 °C
1950	14.5 °C
1951	14.7 °C
1952	14.8 °C
1953	14.1 °C
1954	13.9 °C
1955	14.1 °C
1956	15.9 °C
1957	15.7 °C
1958	16.8 °C
1959	14.4 °C
1960	15.1 °C
1961	16.2 °C
1962	14.9 °C
1963	15.5 °C
1964	14.2 °C
1967	15.3 °C
1969	15.0 °C
1970	14.6 °C
1971	14.2 °C
1972	13.9 °C
1973	14.8 °C
1974	14.6 °C
1976	14.3 °C
1977	14.8 °C
1978	14.1 °C
1979	15.4 °C
1981	14.2 °C
1983	14.2 °C
1984	12.9 °C
1987	15.3 °C
1988	14.0 °C
1989	14.4 °C
1991	14.0 °C
1992	14.9 °C
1993	13.7 °C
1994	15.4 °C
1995	14.3 °C
1998	15.9 °C
1999	13.3 °C
2000	13.7 °C
2001	13.9 °C
2002	14.0 °C
2003	14.8 °C
2004	15.1 °C
2005	14.2 °C
2006	14.8 °C
2007	14.4 °C
2008	13.7 °C
2009	14.9 °C
2010	13.2 °C
2011	12.5 °C
2012	13.7 °C
2013	14.1 °C
2014	14.6 °C
2015	15.0 °C
2016	14.2 °C
2017	14.3 °C
2018	14.1 °C
2019	14.3 °C
2020	13.8 °C
2021	14.9 °C
2022	14.1 °C
2023	14.8 °C
2024	14.3 °C
2025	15.5 °C
2026	14.4 °C

What this means for you: Since 1893, Davenport's last spring frost has stayed at about the same time of year. Year-to-year swings are large, so keep using the safe date rather than the trend.

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

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