When to plant in Quartzsite, AZ

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

Frost is rare in Quartzsite: in 2 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

Feb 24

1 year in 10 has a later frost

Average last frost

Jan 31

about a 50% chance of a later one

Average first fall frost

Dec 3

1 year in 10 by Nov 22

Frost-free days

304

median, 1991–2020

Station used: Quartzsite · 0.2 km away · station 267 m, town 268 m. How we match towns to stations

Quartzsite'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
1909	Mar 12
1910	Feb 19
1911	Feb 25
1912	Feb 27
1913	Mar 28
1914	Feb 9
1922	Apr 10
1923	Mar 24
1924	Apr 17
1925	Mar 15
1926	Feb 24
1927	Mar 21
1928	Apr 9
1929	Apr 10
1930	Mar 2
1931	Mar 9
1932	Feb 12
1933	Mar 6
1934	Feb 2
1935	Mar 20
1936	Mar 23
1937	Feb 28
1938	Mar 31
1939	Mar 6
1940	Feb 17
1960	Feb 25
1961	Feb 28
1962	Mar 16
1964	Feb 28
1965	Mar 5
1966	Mar 4
1967	Feb 22
1968	Jan 20
1973	Feb 2
1974	Feb 11
1987	Feb 28
1988	Jan 23
1989	Feb 7
1990	Feb 16
1991	Jan 31
1992	Jan 23
1993	Jan 4
1994	Feb 3
1995	Jan 19
1996	Feb 27
1997	Jan 8
1998	Jan 7
1999	Feb 12
2000	Jan 8
2001	Feb 1
2002	Mar 4
2003	Feb 9
2004	Feb 13
2006	Feb 23
2007	Feb 3
2008	Feb 6
2009	Jan 28
2011	Feb 11
2012	Jan 14
2013	Feb 13
2014	Feb 2
2015	Jan 5
2016	Feb 5
2017	Jan 27
2018	Mar 1
2019	Feb 24
2020	Feb 5
2021	Mar 3

Each year's frost-free daysLong-term trend

See the data as a table

Year	Frost-free days
1909	249
1910	314
1911	259
1912	273
1913	248
1922	208
1923	247
1924	203
1925	234
1926	295
1927	246
1928	221
1929	216
1930	257
1931	257
1932	297
1934	291
1935	224
1936	225
1937	296
1938	221
1939	290
1960	275
1961	263
1962	247
1964	261
1965	285
1966	279
1967	283
1968	312
1987	288
1988	300
1989	295
1990	284
1991	304
1992	305
1993	325
1994	288
1995	335
1996	278
1998	333
1999	295
2000	311
2001	314
2002	291
2003	287
2004	289
2005	330
2006	279
2007	313
2008	324
2009	310
2010	328
2011	295
2013	294
2014	327
2015	326
2016	294
2017	311
2018	278
2019	247
2020	296
2021	282

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

See the data as a table

Year	Growing-season temperature
1909	28.9 °C
1910	29.7 °C
1911	28.4 °C
1912	27.0 °C
1913	27.9 °C
1914	29.5 °C
1922	28.6 °C
1923	27.8 °C
1924	29.8 °C
1925	28.9 °C
1926	29.6 °C
1927	28.9 °C
1928	29.9 °C
1929	29.1 °C
1930	28.8 °C
1931	29.8 °C
1932	29.6 °C
1933	28.8 °C
1934	30.4 °C
1936	30.8 °C
1937	30.7 °C
1938	30.0 °C
1939	29.7 °C
1940	30.9 °C
1941	27.8 °C
1960	30.6 °C
1961	29.9 °C
1962	30.1 °C
1963	30.0 °C
1964	29.1 °C
1965	28.2 °C
1966	30.3 °C
1967	28.7 °C
1968	29.1 °C
1974	29.9 °C
1987	30.4 °C
1988	29.6 °C
1989	30.9 °C
1990	30.0 °C
1991	29.4 °C
1992	30.3 °C
1993	29.7 °C
1994	30.7 °C
1995	30.0 °C
1996	31.4 °C
1998	29.1 °C
1999	29.4 °C
2000	31.3 °C
2001	31.3 °C
2002	30.8 °C
2003	30.9 °C
2004	30.5 °C
2005	29.7 °C
2006	30.5 °C
2007	31.1 °C
2008	30.7 °C
2009	30.8 °C
2010	29.9 °C
2011	30.1 °C
2013	30.6 °C
2014	30.5 °C
2015	30.5 °C
2017	30.2 °C
2018	31.1 °C
2019	30.1 °C
2020	31.7 °C
2021	30.9 °C

What this means for you: Since 1909, Quartzsite'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 Quartzsite (NOAA GHCN-Daily). Years with too many missing days are left out.

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