When to plant in Duvall, WA

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

Safe to plant out

May 6

1 year in 10 has a later frost

Average last frost

Apr 16

about a 50% chance of a later one

Average first fall frost

Oct 27

1 year in 10 by Oct 11

Frost-free days

192

median, 1991–2020

Station used: Monroe · 11.4 km away · station 38 m, town 27 m. How we match towns to stations

This season

Plan your garden.

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Planting dates for common crops

Crop	Start indoors	Plant out or sow	Harvest from
Tomato	Mar 11 – Mar 25	May 6 – May 20	Jun 30
Sweet pepper	Feb 25 – Mar 11	May 6 – May 20	Jul 5
Lettuce (leaf)	Feb 12 – Feb 19	Mar 19 – Apr 2	Apr 28
Peas	—	Mar 5 – Apr 2	Apr 29
Bush beans	—	Apr 29 – May 20	Jun 18
Carrot	—	Mar 27 – May 8	May 26
Beet	—	Mar 27 – May 8	May 16
Potato	—	Mar 27 – Apr 17	Jun 5
Kale	Feb 5 – Feb 19	Mar 19 – Apr 2	May 1
Broccoli	Feb 5 – Feb 19	Mar 19 – Apr 9	May 18
Cucumber	Apr 8 – Apr 15	May 6 – May 20	Jun 25
Summer squash and zucchini	Apr 8 – Apr 15	May 6 – May 20	Jun 20
Winter squash	Apr 8 – Apr 15	May 6 – May 20	Jul 25
Sweet corn	—	Apr 29 – May 20	Jun 28
Onion (from sets)	—	Mar 19 – Apr 9	Jun 17
Garlic	—	Oct 7 – Nov 4 (fall)	following summer
Spinach	—	Mar 5 – Apr 2	Apr 12
Basil	Mar 25 – Apr 8	May 6 – May 20	Jul 2

Plan all 65 crops for Duvall

Duvall'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
1929	Apr 19
1930	May 8
1931	Apr 23
1932	Mar 12
1933	Apr 9
1934	Apr 3
1935	Apr 28
1936	May 17
1937	May 6
1938	Apr 20
1939	Apr 16
1940	Apr 3
1941	Mar 24
1942	Mar 27
1943	Mar 20
1944	May 2
1945	Apr 28
1946	Apr 7
1949	Apr 14
1950	May 14
1951	Apr 23
1952	May 5
1953	Apr 29
1954	May 1
1955	Apr 25
1956	Apr 17
1957	Mar 28
1958	Mar 27
1959	Apr 8
1960	Apr 16
1961	Apr 20
1962	Apr 16
1963	May 4
1964	May 14
1966	Apr 19
1967	Apr 15
1969	Apr 26
1970	Apr 16
1971	Apr 19
1972	Apr 30
1973	May 11
1974	Apr 13
1975	Apr 29
1976	Apr 5
1977	Apr 20
1978	Apr 7
1979	Mar 23
1980	Apr 11
1981	Apr 14
1982	Apr 25
1983	Apr 14
1984	Apr 26
1985	Apr 21
1986	Apr 30
1987	Apr 20
1988	Apr 9
1989	Mar 30
1990	Mar 28
1992	Apr 11
1993	Mar 31
1994	Mar 26
1995	Apr 16
1996	Apr 3
1997	Apr 12
1999	May 10
2000	Apr 7
2001	Apr 14
2003	Mar 24
2004	Apr 2
2006	Apr 22
2007	Apr 20
2008	Apr 26
2010	Apr 10
2011	May 4
2012	May 11
2013	May 1
2014	May 7
2015	Apr 26
2016	Mar 29
2017	Apr 16
2018	Apr 6
2019	Apr 30
2020	Apr 16
2022	Apr 20
2023	Apr 13
2024	Apr 24
2025	Mar 7
2026	Apr 8

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1929	192
1930	154
1931	180
1932	192
1933	168
1934	196
1935	176
1937	191
1938	178
1939	191
1940	201
1941	222
1942	199
1943	212
1944	191
1945	172
1946	185
1949	181
1950	138
1951	185
1952	162
1953	186
1954	177
1955	199
1956	215
1957	206
1958	210
1959	204
1960	202
1961	179
1962	209
1963	175
1964	165
1966	179
1967	200
1969	169
1970	149
1971	179
1972	164
1974	175
1975	177
1976	195
1977	172
1978	205
1979	222
1980	193
1981	189
1982	176
1983	228
1984	172
1985	160
1986	193
1987	182
1988	200
1989	212
1990	192
1992	186
1993	221
1994	221
1996	210
1999	158
2000	216
2003	220
2004	215
2006	190
2007	188
2010	214
2011	174
2012	144
2013	180
2014	187
2015	203
2016	195
2017	180
2018	215
2020	178
2022	201
2023	196
2024	210
2025	267

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

See the data as a table

Year	Growing-season temperature
1929	14.6 °C
1930	15.1 °C
1931	15.2 °C
1932	14.7 °C
1935	14.1 °C
1937	14.0 °C
1938	14.7 °C
1939	14.4 °C
1940	15.5 °C
1941	15.7 °C
1942	15.9 °C
1943	15.2 °C
1944	15.3 °C
1945	14.8 °C
1946	15.2 °C
1949	15.0 °C
1950	14.6 °C
1951	15.2 °C
1952	15.2 °C
1953	15.1 °C
1954	14.0 °C
1955	13.6 °C
1956	15.4 °C
1957	15.6 °C
1958	17.6 °C
1959	15.3 °C
1960	15.2 °C
1961	15.9 °C
1962	14.9 °C
1963	15.4 °C
1964	13.7 °C
1966	14.7 °C
1967	15.5 °C
1968	14.5 °C
1969	14.9 °C
1970	13.9 °C
1971	14.4 °C
1972	14.4 °C
1973	14.6 °C
1974	14.6 °C
1975	14.3 °C
1976	14.4 °C
1977	14.9 °C
1978	15.1 °C
1979	15.5 °C
1980	15.0 °C
1981	15.4 °C
1983	14.9 °C
1984	14.8 °C
1985	15.0 °C
1986	15.0 °C
1987	15.7 °C
1988	15.1 °C
1989	15.2 °C
1990	15.8 °C
1991	15.0 °C
1992	15.8 °C
1993	15.2 °C
1994	16.0 °C
1995	15.6 °C
1996	14.8 °C
1999	14.2 °C
2000	15.3 °C
2003	15.6 °C
2004	16.4 °C
2006	15.2 °C
2007	14.5 °C
2010	13.6 °C
2011	13.1 °C
2012	13.9 °C
2013	15.0 °C
2014	15.2 °C
2015	15.3 °C
2016	14.8 °C
2017	14.7 °C
2018	14.7 °C
2019	14.9 °C
2020	14.3 °C
2022	14.4 °C
2023	15.8 °C
2024	15.7 °C
2025	16.1 °C
2026	16.2 °C

What this means for you: Since 1929, Duvall's last spring frost has stayed at about the same time of year. 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 Monroe (NOAA GHCN-Daily). Years with too many missing days are left out.

Nearby towns

Cottage Lake Lake Marcel-Stillwater Union Hill-Novelty Hill Carnation Maltby Ames Lake