When to plant in Peaceful Valley, WA

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

Safe to plant out

May 9

1 year in 10 has a later frost

Average last frost

Apr 13

about a 50% chance of a later one

Average first fall frost

Oct 20

1 year in 10 by Oct 4

Frost-free days

188

median, 1991–2020

Station used: Clearbrook · 13.7 km away · station 20 m, town 142 m. How we match towns to stations

This season

Plan your garden.

Build my Peaceful Valley plan

Planting dates for common crops

Crop	Start indoors	Plant out or sow	Harvest from
Tomato	Mar 14 – Mar 28	May 9 – May 23	Jul 3
Sweet pepper	Feb 28 – Mar 14	May 9 – May 23	Jul 8
Lettuce (leaf)	Feb 9 – Feb 16	Mar 16 – Mar 30	Apr 25
Peas	—	Mar 5 – Apr 2	Apr 29
Bush beans	—	May 2 – May 23	Jun 21
Carrot	—	Mar 26 – May 7	May 25
Beet	—	Mar 26 – May 7	May 15
Potato	—	Mar 26 – Apr 16	Jun 4
Kale	Feb 2 – Feb 16	Mar 16 – Mar 30	Apr 28
Broccoli	Feb 2 – Feb 16	Mar 16 – Apr 6	May 15
Cucumber	Apr 11 – Apr 18	May 9 – May 23	Jun 28
Summer squash and zucchini	Apr 11 – Apr 18	May 9 – May 23	Jun 23
Winter squash	Apr 11 – Apr 18	May 9 – May 23	Jul 28
Sweet corn	—	May 2 – May 23	Jul 1
Onion (from sets)	—	Mar 16 – Apr 6	Jun 14
Garlic	—	Oct 6 – Nov 3 (fall)	following summer
Spinach	—	Mar 5 – Apr 2	Apr 12
Basil	Mar 28 – Apr 11	May 9 – May 23	Jul 5

Plan all 65 crops for Peaceful Valley

Peaceful Valley'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
1903	May 24
1904	Jun 12
1905	May 18
1906	May 8
1907	Jun 2
1908	Jun 27
1909	May 25
1910	Jun 12
1911	Jun 23
1912	Jun 3
1913	May 6
1914	May 29
1916	Jul 5
1917	Mar 30
1918	May 1
1919	May 6
1920	May 25
1921	May 4
1922	May 27
1923	May 6
1924	Jul 7
1925	May 24
1926	Apr 23
1927	May 26
1928	May 9
1929	May 17
1930	May 11
1931	Apr 19
1932	Apr 21
1933	Jun 10
1934	Jun 1
1935	May 24
1936	Apr 5
1937	Apr 29
1938	May 7
1939	Jun 1
1940	Apr 21
1941	Apr 21
1942	May 16
1943	May 18
1944	May 11
1945	Apr 28
1946	Apr 14
1947	May 3
1948	May 2
1949	May 4
1951	Apr 21
1952	May 5
1953	May 31
1954	May 1
1955	May 23
1956	May 13
1957	Apr 21
1958	May 13
1959	May 5
1960	May 15
1961	Apr 20
1962	May 7
1963	May 9
1964	May 25
1965	May 8
1966	May 28
1967	Apr 24
1968	May 2
1969	Apr 15
1970	May 18
1971	Apr 18
1972	Apr 30
1973	May 1
1974	May 3
1975	May 7
1976	Apr 5
1977	Apr 20
1978	May 5
1979	Apr 14
1980	Mar 30
1981	Apr 13
1982	May 5
1983	Apr 16
1984	Apr 27
1985	May 9
1986	May 16
1987	Apr 25
1988	Mar 28
1989	Mar 23
1990	Apr 7
1991	Mar 27
1992	Apr 21
1993	Mar 28
1994	May 2
1995	Apr 19
1996	May 9
1997	Apr 7
1998	Apr 2
1999	May 10
2000	Apr 7
2001	Apr 14
2002	May 10
2003	Apr 26
2004	Apr 1
2005	Mar 14
2006	May 10
2007	Apr 20
2008	Apr 26
2009	Apr 24
2010	May 5
2011	Apr 15
2012	Apr 7
2013	May 1
2014	Mar 22
2015	Apr 15
2016	Mar 17
2017	Mar 7
2018	Apr 2
2019	Mar 17
2020	Apr 14
2021	Apr 12
2022	Apr 16
2023	Apr 21
2024	Apr 10
2025	Apr 23
2026	Apr 9

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1903	131
1904	98
1905	135
1906	142
1907	101
1908	80
1909	71
1910	72
1912	92
1913	151
1914	51
1916	9
1917	172
1918	151
1919	145
1920	146
1921	132
1922	154
1923	138
1924	74
1925	118
1926	147
1927	154
1928	121
1929	132
1930	134
1931	169
1932	170
1933	106
1934	115
1935	122
1936	198
1937	147
1938	159
1939	103
1940	151
1941	166
1942	125
1943	152
1944	129
1945	151
1946	165
1947	137
1948	149
1949	130
1951	183
1952	162
1953	143
1954	153
1955	160
1956	167
1957	150
1958	166
1959	163
1960	137
1961	153
1962	161
1963	162
1964	148
1965	142
1966	133
1967	192
1968	141
1969	178
1970	117
1971	164
1972	147
1973	154
1974	148
1975	194
1976	192
1977	165
1978	173
1979	207
1980	197
1981	180
1982	165
1983	165
1984	170
1985	142
1986	148
1987	169
1988	230
1989	193
1991	214
1992	147
1993	177
1994	166
1995	185
1996	163
1997	194
1998	199
1999	146
2000	217
2001	196
2002	143
2003	188
2004	208
2005	203
2006	150
2007	189
2008	165
2009	166
2010	164
2011	182
2012	215
2013	164
2014	234
2015	202
2016	258
2017	237
2018	186
2019	206
2020	190
2021	182
2022	189
2023	187
2024	235
2025	220

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

See the data as a table

Year	Growing-season temperature
1903	13.4 °C
1904	13.7 °C
1905	13.9 °C
1906	14.1 °C
1907	13.5 °C
1908	12.8 °C
1909	12.4 °C
1910	12.8 °C
1911	12.5 °C
1912	13.6 °C
1913	14.2 °C
1914	13.8 °C
1916	12.7 °C
1918	15.4 °C
1919	13.8 °C
1920	12.9 °C
1921	12.8 °C
1922	13.0 °C
1923	13.7 °C
1924	13.1 °C
1925	13.9 °C
1926	13.8 °C
1927	14.1 °C
1928	14.2 °C
1929	13.1 °C
1930	13.8 °C
1931	14.0 °C
1932	13.5 °C
1933	12.7 °C
1934	14.2 °C
1935	13.5 °C
1936	14.4 °C
1937	13.5 °C
1938	13.9 °C
1939	14.1 °C
1940	15.1 °C
1941	15.1 °C
1942	15.1 °C
1943	13.9 °C
1944	14.2 °C
1945	13.5 °C
1946	14.3 °C
1947	14.6 °C
1948	13.5 °C
1949	13.6 °C
1951	14.2 °C
1952	13.7 °C
1953	14.1 °C
1954	12.9 °C
1955	12.7 °C
1956	14.2 °C
1957	14.6 °C
1958	16.0 °C
1959	13.7 °C
1960	14.0 °C
1961	14.5 °C
1962	13.4 °C
1963	14.6 °C
1964	13.2 °C
1965	13.6 °C
1966	13.6 °C
1967	14.5 °C
1968	13.8 °C
1969	14.2 °C
1970	13.6 °C
1971	13.6 °C
1972	13.7 °C
1973	13.5 °C
1974	13.9 °C
1975	13.3 °C
1976	13.7 °C
1977	14.1 °C
1978	14.3 °C
1979	14.3 °C
1980	14.1 °C
1981	14.4 °C
1982	14.3 °C
1983	14.6 °C
1984	14.1 °C
1985	14.5 °C
1986	14.5 °C
1987	15.2 °C
1988	14.5 °C
1989	15.0 °C
1990	15.9 °C
1991	14.9 °C
1992	15.5 °C
1993	15.2 °C
1994	15.3 °C
1995	15.3 °C
1996	14.6 °C
1997	15.5 °C
1998	15.6 °C
1999	14.3 °C
2000	14.6 °C
2001	14.2 °C
2002	14.1 °C
2003	14.8 °C
2004	15.8 °C
2005	15.0 °C
2006	14.8 °C
2007	14.5 °C
2008	13.9 °C
2009	15.2 °C
2010	14.4 °C
2011	13.9 °C
2012	14.5 °C
2013	15.3 °C
2014	15.7 °C
2015	15.7 °C
2016	16.0 °C
2017	15.6 °C
2018	15.4 °C
2019	15.3 °C
2020	15.0 °C
2021	15.6 °C
2022	15.1 °C
2023	14.9 °C
2024	14.8 °C
2025	15.6 °C

What this means for you: Since 1903, Peaceful Valley's last spring frost has come about 4 days earlier per decade, on average. The frost-free season has grown by about 8 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.

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

Nearby towns

Sumas Nooksack Everson Lynden Sudden Valley Geneva