When to plant in Newport Beach, CA

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

Frost is rare in Newport Beach: in 22 of the last 22 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

Jan 1

1 year in 10 has a later frost

Average last frost

Jan 1

about a 50% chance of a later one

Average first fall frost

Dec 31

1 year in 10 by Dec 31

Frost-free days

363

median, 1991–2020

Station used: Newport Beach Harbor · 4.6 km away · station 3 m, town 3 m. How we match towns to stations

Newport Beach'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
1922	Jan 21
1928	Jan 19
1937	Jan 23
1942	Feb 15
1949	Jan 5
1950	Jan 6
1955	Jan 9
1960	Jan 2
1971	Feb 4
1979	Jan 29

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1921	363
1922	343
1924	363
1925	363
1926	363
1927	363
1930	363
1931	363
1932	363
1933	363
1934	363
1935	363
1936	363
1937	341
1938	363
1939	363
1942	318
1943	363
1944	363
1945	363
1946	363
1947	363
1949	359
1950	358
1951	363
1952	363
1953	363
1954	363
1955	355
1956	363
1957	363
1958	363
1959	363
1960	362
1961	363
1962	363
1963	363
1964	363
1965	363
1966	363
1967	363
1968	363
1969	363
1970	363
1971	267
1972	363
1973	363
1974	363
1975	363
1976	363
1977	363
1978	363
1979	335
1980	363
1982	363
1983	363
1984	363
1985	363
1986	363
1988	363
1989	363
1990	363
1992	363
1993	363
1995	363
1996	363
1997	363
1999	363
2001	363
2002	363
2003	363
2004	363
2005	363
2011	363
2012	363
2013	363
2014	363
2015	363
2016	363
2017	363
2018	363
2019	363
2020	363
2021	363
2022	363
2023	363
2024	363
2025	363

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

See the data as a table

Year	Growing-season temperature
1921	16.8 °C
1923	16.8 °C
1924	16.9 °C
1925	17.3 °C
1926	18.0 °C
1927	16.7 °C
1929	17.8 °C
1930	18.2 °C
1931	20.1 °C
1932	17.2 °C
1933	16.3 °C
1934	19.0 °C
1935	18.2 °C
1936	18.9 °C
1937	18.5 °C
1938	18.2 °C
1939	18.9 °C
1940	18.4 °C
1942	18.0 °C
1943	18.2 °C
1944	17.5 °C
1945	18.2 °C
1946	18.9 °C
1947	19.1 °C
1949	18.4 °C
1950	17.4 °C
1951	17.6 °C
1952	17.4 °C
1953	17.7 °C
1954	17.5 °C
1955	16.9 °C
1956	17.2 °C
1957	18.2 °C
1958	18.4 °C
1959	19.0 °C
1960	18.0 °C
1961	17.2 °C
1962	16.9 °C
1963	17.7 °C
1964	16.9 °C
1965	17.1 °C
1966	18.2 °C
1967	17.6 °C
1968	18.1 °C
1969	17.9 °C
1970	17.7 °C
1971	18.0 °C
1972	18.0 °C
1973	17.6 °C
1974	18.0 °C
1975	16.8 °C
1976	18.2 °C
1977	18.2 °C
1978	18.7 °C
1979	18.8 °C
1980	18.1 °C
1982	18.7 °C
1983	19.4 °C
1984	20.7 °C
1985	18.6 °C
1986	18.1 °C
1988	17.2 °C
1990	18.2 °C
1991	16.6 °C
1992	18.8 °C
1993	18.2 °C
1994	18.0 °C
1995	17.1 °C
1996	18.5 °C
1997	19.1 °C
1999	18.4 °C
2001	17.7 °C
2002	18.0 °C
2004	19.7 °C
2005	18.4 °C
2006	19.4 °C
2011	17.9 °C
2012	18.4 °C
2013	18.5 °C
2014	20.0 °C
2015	19.9 °C
2016	19.3 °C
2017	19.4 °C
2018	19.3 °C
2019	18.9 °C
2020	19.4 °C
2021	18.5 °C
2022	19.5 °C
2023	18.3 °C
2024	18.6 °C
2025	18.8 °C

What this means for you: This station's record is too short to show a reliable trend yet.

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

Nearby towns

Costa Mesa Huntington Beach Fountain Valley Irvine Turtle Rock Santa Ana