When to plant in South Houston, TX

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

Frost is rare in South Houston: in 6 of the last 30 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

Mar 5

1 year in 10 has a later frost

Average last frost

Jan 26

about a 50% chance of a later one

Average first fall frost

Dec 16

1 year in 10 by Nov 27

Frost-free days

332

median, 1991–2020

Station used: Houston William P Hobby Ap · 4.9 km away · station 13 m, town 9 m. How we match towns to stations

South Houston'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
1931	Mar 9
1932	Mar 14
1933	Feb 12
1934	Mar 19
1935	Feb 28
1936	Feb 19
1939	Feb 23
1940	Apr 13
1941	Feb 9
1947	Mar 2
1948	Mar 13
1949	Feb 1
1950	Jan 7
1951	Mar 13
1953	Jan 18
1954	Feb 8
1955	Mar 27
1956	Mar 8
1957	Jan 18
1958	Feb 16
1959	Jan 22
1960	Mar 4
1961	Feb 8
1962	Mar 1
1963	Feb 14
1964	Feb 23
1965	Mar 20
1966	Feb 5
1967	Feb 23
1968	Mar 1
1969	Jan 6
1970	Feb 4
1971	Mar 4
1972	Feb 4
1973	Feb 11
1974	Feb 25
1975	Feb 7
1976	Feb 23
1977	Jan 29
1978	Mar 10
1979	Feb 10
1980	Mar 3
1981	Feb 12
1982	Mar 7
1983	Jan 23
1984	Feb 7
1985	Feb 3
1987	Mar 31
1988	Feb 12
1989	Mar 7
1992	Jan 16
1993	Mar 14
1994	Feb 10
1996	Mar 10
1997	Jan 14
1999	Jan 5
2000	Jan 5
2001	Jan 21
2002	Mar 5
2003	Jan 24
2004	Jan 28
2006	Feb 12
2007	Feb 16
2008	Jan 3
2009	Jan 29
2010	Feb 25
2011	Feb 12
2012	Jan 13
2013	Jan 17
2014	Mar 4
2015	Jan 8
2017	Jan 8
2018	Jan 18
2019	Mar 5
2021	Feb 20
2022	Mar 12
2024	Jan 20

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1931	269
1932	243
1933	321
1934	256
1935	304
1936	258
1939	306
1940	214
1941	324
1947	297
1948	292
1949	324
1950	321
1951	234
1952	347
1953	330
1954	323
1955	246
1956	263
1957	326
1958	285
1959	288
1960	291
1961	307
1962	285
1963	291
1964	285
1965	285
1966	308
1967	302
1968	255
1969	312
1970	284
1971	301
1972	299
1973	310
1974	277
1975	288
1976	277
1977	325
1978	272
1979	291
1980	267
1981	308
1982	280
1983	329
1984	302
1985	312
1986	363
1987	274
1988	321
1989	276
1990	354
1991	363
1992	314
1993	257
1994	323
1995	342
1996	282
1997	333
1998	358
1999	359
2000	345
2001	343
2002	300
2003	340
2004	329
2005	363
2006	295
2007	317
2008	340
2009	308
2010	286
2011	288
2012	351
2013	332
2014	301
2015	356
2016	351
2017	333
2018	300
2019	252
2020	333
2021	313
2022	284
2023	363
2024	344

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

See the data as a table

Year	Growing-season temperature
1931	24.3 °C
1932	25.3 °C
1933	26.0 °C
1934	25.5 °C
1935	25.3 °C
1936	25.2 °C
1939	25.6 °C
1940	24.6 °C
1941	25.9 °C
1947	25.9 °C
1948	26.4 °C
1949	25.9 °C
1950	25.7 °C
1951	26.1 °C
1952	25.3 °C
1953	26.2 °C
1954	26.3 °C
1955	26.1 °C
1956	26.1 °C
1957	25.9 °C
1958	26.6 °C
1959	25.8 °C
1960	26.0 °C
1961	25.7 °C
1962	26.2 °C
1963	26.9 °C
1964	26.1 °C
1965	27.0 °C
1966	26.0 °C
1967	26.2 °C
1968	26.0 °C
1969	26.6 °C
1970	26.2 °C
1971	25.7 °C
1972	26.5 °C
1973	25.6 °C
1974	25.9 °C
1975	25.8 °C
1976	25.4 °C
1977	26.6 °C
1978	26.3 °C
1979	25.3 °C
1980	26.7 °C
1981	26.2 °C
1982	26.1 °C
1983	25.0 °C
1984	25.6 °C
1985	26.3 °C
1986	26.6 °C
1987	26.2 °C
1988	25.8 °C
1989	25.8 °C
1990	26.7 °C
1991	26.8 °C
1992	25.9 °C
1993	26.1 °C
1994	25.9 °C
1995	26.3 °C
1996	26.4 °C
1997	26.0 °C
1998	27.8 °C
1999	26.8 °C
2000	26.9 °C
2001	26.4 °C
2002	26.5 °C
2003	26.5 °C
2004	26.3 °C
2005	26.9 °C
2006	26.5 °C
2007	26.4 °C
2008	26.9 °C
2009	27.2 °C
2010	27.2 °C
2011	28.3 °C
2012	27.1 °C
2013	26.7 °C
2014	26.3 °C
2015	27.1 °C
2016	27.3 °C
2017	27.2 °C
2018	27.0 °C
2019	27.6 °C
2020	27.6 °C
2021	27.4 °C
2022	28.4 °C
2023	28.7 °C
2024	28.2 °C

What this means for you: Since 1931, South Houston's last spring frost has come about 3 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 Houston William P Hobby Ap (NOAA GHCN-Daily). Years with too many missing days are left out.

Nearby towns

Pasadena Deer Park Pearland Brookside Village Friendswood Houston