When to plant in Redwood Valley, CA

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

Safe to plant out

Apr 8

1 year in 10 has a later frost

Average last frost

Mar 15

about a 50% chance of a later one

Average first fall frost

Nov 20

1 year in 10 by Nov 6

Frost-free days

265

median, 1991–2020

Station used: Ukiah · 13.2 km away · station 194 m, town 220 m. How we match towns to stations

This season

Plan your garden.

Build my Redwood Valley plan

Planting dates for common crops

Crop	Start indoors	Plant out or sow	Harvest from
Tomato	Feb 11 – Feb 25	Apr 8 – Apr 22	Jun 2
Sweet pepper	Jan 28 – Feb 11	Apr 8 – Apr 22	Jun 7
Lettuce (leaf)	Jan 11 – Jan 18	Feb 15 – Mar 1	Mar 27
Peas	—	Feb 1 – Mar 1	Mar 28
Bush beans	—	Apr 1 – Apr 22	May 21
Carrot	—	Feb 22 – Apr 5	Apr 23
Beet	—	Feb 15 – Mar 29	Apr 6
Potato	—	Feb 22 – Mar 15	May 3
Kale	Jan 4 – Jan 18	Feb 15 – Mar 1	Mar 30
Broccoli	Jan 4 – Jan 18	Feb 15 – Mar 8	Apr 16
Cucumber	Mar 11 – Mar 18	Apr 8 – Apr 22	May 28
Summer squash and zucchini	Mar 11 – Mar 18	Apr 8 – Apr 22	May 23
Winter squash	Mar 11 – Mar 18	Apr 8 – Apr 22	Jun 27
Sweet corn	—	Apr 1 – Apr 22	May 31
Onion (from sets)	—	Feb 15 – Mar 8	May 16
Garlic	—	Nov 6 – Dec 4 (fall)	following summer
Spinach	—	Feb 1 – Mar 1	Mar 11
Basil	Feb 25 – Mar 11	Apr 8 – Apr 22	Jun 4

Plan all 65 crops for Redwood Valley

Redwood 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
1893	Apr 13
1894	May 16
1895	Apr 12
1896	Apr 19
1897	Mar 30
1898	Apr 4
1899	May 15
1900	Apr 27
1901	May 22
1903	Apr 27
1904	May 30
1905	Mar 31
1906	Apr 1
1907	Apr 3
1908	Apr 22
1909	Apr 5
1910	Mar 25
1911	May 6
1912	Apr 12
1913	May 13
1914	Mar 2
1915	Mar 13
1916	May 7
1917	May 16
1918	Apr 15
1919	May 31
1920	May 24
1921	Apr 16
1922	Apr 19
1923	Apr 25
1924	May 6
1925	Mar 13
1926	Mar 10
1927	Apr 17
1928	Apr 4
1929	Apr 12
1930	May 17
1931	Apr 2
1932	Apr 21
1933	Apr 18
1934	Feb 13
1935	Apr 9
1936	Apr 5
1937	Feb 26
1938	Mar 31
1939	Mar 14
1940	Mar 12
1941	Feb 25
1942	Mar 28
1943	Mar 20
1944	Apr 25
1945	Apr 13
1946	Mar 23
1947	Mar 6
1948	May 1
1949	Mar 29
1950	May 3
1951	Mar 31
1952	Mar 22
1953	Apr 9
1954	Mar 17
1955	Apr 27
1956	Mar 12
1957	Mar 23
1958	Apr 6
1959	Feb 24
1960	Mar 14
1961	Apr 19
1962	Mar 24
1963	Apr 21
1964	Apr 26
1965	May 3
1966	Mar 17
1967	Apr 30
1968	Apr 17
1969	Apr 13
1970	Apr 28
1971	Mar 31
1972	Apr 18
1973	Mar 22
1974	Mar 8
1975	Apr 17
1977	May 7
1978	Apr 22
1979	Feb 18
1980	Mar 16
1981	Feb 6
1982	Apr 8
1983	Apr 11
1984	Feb 22
1986	Mar 14
1987	Mar 20
1988	Mar 13
1989	Mar 3
1990	Mar 13
1991	Mar 27
1992	Feb 5
1993	Feb 28
1994	Mar 23
1995	May 25
1996	Mar 6
1997	Mar 7
1998	Mar 6
1999	Apr 9
2000	Jan 29
2001	Apr 8
2002	Mar 18
2003	Feb 28
2006	Mar 13
2007	Feb 28
2009	Apr 4

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1893	202
1894	184
1895	205
1896	195
1897	198
1898	217
1899	152
1900	152
1901	172
1903	192
1904	186
1905	190
1906	199
1907	225
1908	177
1909	215
1910	232
1911	188
1912	180
1913	144
1914	256
1915	223
1916	147
1917	154
1918	192
1919	138
1920	148
1921	190
1922	192
1923	181
1925	234
1926	203
1927	197
1928	191
1929	200
1930	146
1931	222
1932	185
1933	201
1934	285
1935	195
1936	210
1937	253
1938	219
1939	224
1940	236
1941	265
1942	220
1943	237
1944	202
1945	192
1946	218
1947	245
1948	181
1949	203
1950	211
1951	229
1952	238
1953	222
1954	220
1955	188
1956	225
1957	224
1958	222
1959	254
1960	257
1961	207
1962	249
1963	208
1964	201
1965	208
1966	210
1967	208
1968	222
1969	217
1970	181
1971	200
1972	193
1973	225
1974	258
1975	188
1977	180
1978	202
1979	274
1980	240
1981	294
1982	215
1984	276
1986	257
1987	250
1988	249
1990	238
1991	232
1992	277
1993	258
1994	224
1995	211
1996	270
1997	276
1998	272
2000	284
2003	266
2006	243
2007	265
2009	218

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

See the data as a table

Year	Growing-season temperature
1893	16.5 °C
1894	17.8 °C
1895	17.4 °C
1896	17.0 °C
1897	18.4 °C
1898	17.7 °C
1899	17.9 °C
1900	18.4 °C
1901	17.9 °C
1903	18.2 °C
1904	19.5 °C
1905	18.4 °C
1906	18.6 °C
1907	18.0 °C
1908	18.5 °C
1909	18.5 °C
1910	19.2 °C
1911	18.0 °C
1912	17.9 °C
1913	18.9 °C
1914	18.6 °C
1915	18.2 °C
1916	18.1 °C
1917	18.2 °C
1918	18.6 °C
1919	18.7 °C
1920	17.4 °C
1921	17.9 °C
1922	18.8 °C
1923	17.3 °C
1924	19.5 °C
1925	18.5 °C
1926	19.9 °C
1927	18.4 °C
1928	19.1 °C
1929	18.2 °C
1930	18.3 °C
1931	20.1 °C
1932	19.8 °C
1933	18.9 °C
1934	20.0 °C
1935	19.6 °C
1936	19.9 °C
1937	19.2 °C
1938	19.6 °C
1939	19.8 °C
1940	19.5 °C
1941	18.4 °C
1942	18.9 °C
1943	19.0 °C
1944	18.6 °C
1945	19.4 °C
1946	18.9 °C
1947	19.6 °C
1948	18.0 °C
1949	19.7 °C
1950	20.2 °C
1951	20.1 °C
1952	20.1 °C
1953	18.9 °C
1954	19.3 °C
1955	19.3 °C
1956	19.3 °C
1957	19.6 °C
1958	20.5 °C
1959	19.9 °C
1960	20.2 °C
1961	19.9 °C
1962	19.6 °C
1963	18.6 °C
1964	18.6 °C
1965	18.6 °C
1966	19.8 °C
1967	19.7 °C
1968	19.6 °C
1969	20.1 °C
1970	19.8 °C
1971	18.9 °C
1972	19.3 °C
1973	20.2 °C
1974	19.9 °C
1975	19.2 °C
1977	19.4 °C
1978	19.2 °C
1979	20.1 °C
1980	19.0 °C
1981	20.2 °C
1982	19.0 °C
1983	19.2 °C
1984	20.3 °C
1986	19.7 °C
1987	20.6 °C
1988	19.6 °C
1990	19.5 °C
1991	19.1 °C
1992	20.6 °C
1993	18.7 °C
1994	19.3 °C
1995	18.6 °C
1996	20.0 °C
1997	19.4 °C
1998	18.8 °C
2000	19.4 °C
2003	19.1 °C
2006	20.0 °C
2007	18.9 °C
2008	19.1 °C
2009	19.8 °C

What this means for you: Since 1893, Redwood Valley's last spring frost has come about 4 days earlier per decade, on average. The frost-free season has grown by about 6 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.

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

Nearby towns

Ukiah Talmage Willits Brooktrails Upper Lake Boonville