When to plant in Dunnigan, CA

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

Frost is rare in Dunnigan: in 7 of the last 28 springs there was none at all. Frost dates matter less here than heat, so the planting table below is left out.

Safe to plant out

Feb 20

1 year in 10 has a later frost

Average last frost

Jan 23

about a 50% chance of a later one

Average first fall frost

Dec 7

1 year in 10 by Nov 12

Frost-free days

316

median, 1991–2020

Station used: Woodland 1 Wnw · 27.2 km away · station 20 m, town 21 m. How we match towns to stations

Dunnigan'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
1926	Jan 27
1927	Apr 9
1928	Feb 17
1929	Apr 9
1930	Mar 1
1931	Jan 20
1932	Feb 20
1933	Feb 20
1935	Mar 16
1936	Apr 1
1937	Feb 15
1938	Mar 21
1939	Mar 5
1940	Jan 20
1942	Feb 27
1943	Feb 11
1944	Mar 15
1945	Mar 5
1946	Feb 14
1947	Feb 1
1948	Feb 13
1949	Feb 15
1950	Mar 25
1951	Mar 3
1952	Mar 20
1953	Apr 8
1954	Jan 25
1955	Mar 30
1956	Mar 6
1957	Feb 5
1958	Mar 15
1959	Feb 13
1960	Feb 27
1961	Mar 7
1962	Mar 23
1963	Apr 21
1964	Mar 25
1965	Feb 16
1966	Mar 4
1967	Mar 29
1968	Jan 28
1969	Mar 13
1970	Jan 6
1971	Mar 9
1972	Feb 3
1973	Jan 28
1974	Mar 9
1975	Feb 23
1976	Mar 5
1977	Mar 14
1978	Jan 28
1979	Feb 4
1980	Jan 30
1981	Feb 3
1982	Feb 12
1983	Jan 20
1984	Jan 20
1985	Feb 6
1987	Jan 21
1988	Feb 5
1989	Feb 14
1991	Jan 28
1992	Jan 14
1993	Jan 26
1994	Jan 7
1997	Jan 15
1999	Feb 10
2000	Jan 4
2001	Feb 15
2002	Mar 8
2003	Feb 9
2004	Jan 23
2006	Mar 11
2007	Jan 24
2009	Feb 11
2012	Jan 18
2013	Jan 20
2014	Feb 5
2016	Jan 4
2017	Jan 24
2018	Mar 3
2019	Feb 6
2021	Mar 10
2022	Mar 5

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1926	319
1927	227
1928	284
1929	205
1930	257
1931	296
1932	284
1933	280
1934	335
1935	227
1936	238
1937	313
1938	235
1939	300
1940	306
1941	321
1942	280
1943	303
1944	290
1945	281
1946	256
1947	292
1948	287
1949	298
1950	280
1951	280
1952	249
1953	258
1954	308
1955	275
1956	275
1957	273
1958	244
1959	273
1960	267
1961	229
1962	251
1963	214
1964	236
1965	282
1966	265
1967	241
1968	302
1969	258
1970	339
1971	252
1972	292
1973	301
1974	258
1975	271
1976	266
1977	249
1978	287
1979	289
1980	299
1981	330
1982	273
1983	334
1984	329
1985	279
1986	342
1987	330
1988	322
1989	300
1991	316
1993	302
1994	325
1995	363
1996	363
1997	341
1998	338
1999	307
2000	312
2001	318
2002	297
2004	310
2005	338
2006	263
2007	310
2008	341
2009	294
2010	330
2012	330
2014	328
2016	347
2017	314
2018	252
2019	266
2020	311
2021	280
2022	252

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

See the data as a table

Year	Growing-season temperature
1926	21.7 °C
1927	20.6 °C
1928	21.7 °C
1929	21.2 °C
1930	20.4 °C
1931	22.7 °C
1932	21.5 °C
1933	20.8 °C
1934	22.0 °C
1935	20.8 °C
1936	21.2 °C
1937	20.7 °C
1938	22.2 °C
1939	22.9 °C
1940	22.2 °C
1941	21.6 °C
1942	21.4 °C
1943	22.0 °C
1944	21.5 °C
1945	22.2 °C
1946	21.7 °C
1947	22.7 °C
1948	20.7 °C
1949	22.3 °C
1950	22.3 °C
1951	21.7 °C
1952	21.7 °C
1953	20.7 °C
1954	21.4 °C
1955	20.8 °C
1956	21.1 °C
1957	20.8 °C
1958	21.6 °C
1959	21.4 °C
1960	21.4 °C
1961	21.3 °C
1962	20.9 °C
1963	20.2 °C
1964	20.1 °C
1965	20.1 °C
1966	21.9 °C
1967	21.6 °C
1968	21.8 °C
1969	22.0 °C
1970	21.4 °C
1971	21.1 °C
1972	21.5 °C
1973	22.1 °C
1974	21.4 °C
1975	20.7 °C
1976	21.5 °C
1977	21.4 °C
1978	21.6 °C
1979	21.6 °C
1980	21.2 °C
1981	22.9 °C
1982	21.1 °C
1983	21.2 °C
1984	22.9 °C
1985	21.9 °C
1986	21.3 °C
1987	22.4 °C
1989	21.7 °C
1991	21.5 °C
1992	23.1 °C
1993	21.9 °C
1994	21.9 °C
1995	21.8 °C
1996	22.7 °C
1997	23.2 °C
1998	21.2 °C
1999	21.4 °C
2000	22.0 °C
2001	22.6 °C
2002	22.1 °C
2003	22.1 °C
2004	22.5 °C
2005	21.9 °C
2006	22.8 °C
2007	22.3 °C
2008	22.7 °C
2009	22.6 °C
2010	21.0 °C
2011	21.7 °C
2012	22.4 °C
2014	23.5 °C
2015	23.2 °C
2016	23.3 °C
2017	22.6 °C
2018	21.4 °C
2019	21.9 °C
2020	22.9 °C
2021	22.8 °C
2022	22.7 °C
2024	23.6 °C

What this means for you: Since 1926, Dunnigan's last spring frost has come about 4 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 Woodland 1 Wnw (NOAA GHCN-Daily). Years with too many missing days are left out.

Nearby towns

Arbuckle Esparto Cottonwood Monument Hills Woodland Williams