Nights at or below 0 C (32 F) in Phoenix

Phoenix has had nights with a minimum temperature at or below 0 C (32 F) in 51 years, most in 1948 with 42. Days per year, season span, streaks and every date.

Key Facts for Phoenix

Phoenix has had nights with a minimum temperature at or below 0 C (32 F) in 51 years, 581 days in all.
The most in one year was 42 days in 1948.
In 2019, the latest year on file, there were 1 such days.
The earliest first date in a year was 1 January 1944.
The latest last date in a year was 31 December 1944.
The longest run inside a single year was 12 days in 1966.
9 years with under 90 percent of days observed are left out of these rankings.

Days per Year

51 years, 581 days

Days per year in Phoenix with a minimum temperature at or below 0 C (32 F). The line is the decade average. The most was 42 in 1948. Grey bars are years with under 90 percent of days observed, left out of rankings.

Nights at or below 0 C (32 F) per year in Phoenix
Year	Days	Decade average
1934	21	26.5
1938	32	26.5
1941	11	26.3
1942	25	26.3
1943	15	26.3
1944	31	26.3
1948	42	26.3
1949	34	26.3
1950	12	10.5
1951	19	10.5
1952	18	10.5
1953	16	10.5
1954	10	10.5
1955	14	10.5
1956	11	10.5
1957	1	10.5
1958	2	10.5
1959	2	10.5
1960	17	15.9
1961	5	15.9
1962	7	15.9
1963	18	15.9
1964	35	15.9
1965	8	15.9
1966	31	15.9
1967	18	15.9
1968	13	15.9
1969	7	15.9
1970	11	7.3
1971	17	7.3
1972	13	7.3
1973	3	7.3
1974	5	7.3
1975	7	7.3
1976	4	7.3
1977	4	7.3
1978	4	7.3
1979	5	7.3
1985	3	4
1987	5	4
1988	4	4
1990	4	2.5
1998	1	2.5
2000	1	1.7
2003	2	1.7
2007	2	1.7
2010	1	2.2
2011	4	2.2
2013	4	2.2
2015	1	2.2
2019	1	2.2

Season Span

earliest 1 January, latest 31 December

For each year, a bar from the first to the last day in Phoenix meeting 0 C (32 F). Long bars mean a long season.

First to last qualifying date each year in Phoenix
Year	First date	Last date
1934	1934-01-06	1934-12-19
1938	1938-01-06	1938-12-30
1941	1941-01-17	1941-12-27
1942	1942-01-03	1942-12-28
1943	1943-01-10	1943-12-31
1944	1944-01-01	1944-12-31
1948	1948-01-01	1948-12-29
1949	1949-01-03	1949-12-28
1950	1950-01-03	1950-02-01
1951	1951-01-01	1951-12-23
1952	1952-01-02	1952-12-26
1953	1953-02-21	1953-12-31
1954	1954-01-01	1954-12-31
1955	1955-01-21	1955-02-23
1956	1956-02-02	1956-12-28
1957	1957-12-03	1957-12-03
1958	1958-01-23	1958-11-18
1959	1959-01-02	1959-01-04
1960	1960-01-02	1960-12-19
1961	1961-01-01	1961-12-12
1962	1962-01-10	1962-03-15
1963	1963-01-12	1963-12-31
1964	1964-01-06	1964-12-16
1965	1965-01-26	1965-12-20
1966	1966-01-02	1966-12-31
1967	1967-01-01	1967-12-22
1968	1968-01-01	1968-12-31
1969	1969-01-30	1969-12-31
1970	1970-01-01	1970-12-30
1971	1971-01-04	1971-12-16
1972	1972-01-05	1972-12-15
1973	1973-01-21	1973-12-25
1974	1974-01-03	1974-12-27
1975	1975-01-03	1975-02-23
1976	1976-01-01	1976-01-05
1977	1977-01-09	1977-01-12
1978	1978-12-07	1978-12-10
1979	1979-01-02	1979-11-22
1985	1985-02-01	1985-02-05
1987	1987-01-17	1987-12-27
1988	1988-12-27	1988-12-30
1990	1990-02-15	1990-12-26
1998	1998-12-24	1998-12-24
2000	2000-01-03	2000-01-03
2003	2003-12-28	2003-12-29
2007	2007-01-14	2007-01-15
2010	2010-12-31	2010-12-31
2011	2011-01-01	2011-02-04
2013	2013-01-12	2013-01-15
2015	2015-01-02	2015-01-02
2019	2019-01-02	2019-01-02

Every Year

Nights at or below 0 C (32 F) per year in Phoenix
Year	Days	First date	Last date	Longest streak in year	Coverage
2019	1	2 January 2019	2 January 2019	1 days	Complete
2015	1	2 January 2015	2 January 2015	1 days	Complete
2013	4	12 January 2013	15 January 2013	4 days	Complete
2011	4	1 January 2011	4 February 2011	2 days	Complete
2010	1	31 December 2010	31 December 2010	3 days	Complete
2007	2	14 January 2007	15 January 2007	2 days	Complete
2003	2	28 December 2003	29 December 2003	2 days	Complete
2000	1	3 January 2000	3 January 2000	1 days	Complete
1998	1	24 December 1998	24 December 1998	1 days	Complete
1990	4	15 February 1990	26 December 1990	2 days	Complete
1988	4	27 December 1988	30 December 1988	4 days	Complete
1987	5	17 January 1987	27 December 1987	3 days	Complete
1985	3	1 February 1985	5 February 1985	2 days	Complete
1979	5	2 January 1979	22 November 1979	2 days	Complete
1978	4	7 December 1978	10 December 1978	4 days	Complete
1977	4	9 January 1977	12 January 1977	4 days	Complete
1976	4	1 January 1976	5 January 1976	3 days	Complete
1975	7	3 January 1975	23 February 1975	3 days	Complete
1974	5	3 January 1974	27 December 1974	2 days	Complete
1973	3	21 January 1973	25 December 1973	2 days	Complete
1972	13	5 January 1972	15 December 1972	3 days	Complete
1971	17	4 January 1971	16 December 1971	7 days	Complete
1970	11	1 January 1970	30 December 1970	3 days	Complete
1969	7	30 January 1969	31 December 1969	4 days	Complete
1968	13	1 January 1968	31 December 1968	3 days	Complete
1967	18	1 January 1967	22 December 1967	3 days	Complete
1966	31	2 January 1966	31 December 1966	12 days	Complete
1965	8	26 January 1965	20 December 1965	3 days	Complete
1964	35	6 January 1964	16 December 1964	10 days	Complete
1963	18	12 January 1963	31 December 1963	7 days	Complete
1962	7	10 January 1962	15 March 1962	4 days	Complete
1961	5	1 January 1961	12 December 1961	2 days	Complete
1960	17	2 January 1960	19 December 1960	6 days	Complete
1959	2	2 January 1959	4 January 1959	1 days	Complete
1958	2	23 January 1958	18 November 1958	1 days	Complete
1957	1	3 December 1957	3 December 1957	1 days	Complete
1956	11	2 February 1956	28 December 1956	4 days	Complete
1955	14	21 January 1955	23 February 1955	5 days	Complete
1954	10	1 January 1954	31 December 1954	5 days	Complete
1953	16	21 February 1953	31 December 1953	8 days	Complete
1952	18	2 January 1952	26 December 1952	4 days	Complete
1951	19	1 January 1951	23 December 1951	6 days	Complete
1950	12	3 January 1950	1 February 1950	5 days	Complete
1949	34	3 January 1949	28 December 1949	6 days	Complete
1948	42	1 January 1948	29 December 1948	6 days	Complete
1944	31	1 January 1944	31 December 1944	9 days	Complete
1943	15	10 January 1943	31 December 1943	4 days	Complete
1942	25	3 January 1942	28 December 1942	5 days	Complete
1941	11	17 January 1941	27 December 1941	2 days	Complete
1938	32	6 January 1938	30 December 1938	8 days	Complete
1934	21	6 January 1934	19 December 1934	6 days	Complete

Decade averages for Nights at or below 0 C (32 F) in Phoenix
Decade	Average days per year	Years counted
1930s	26.5	2
1940s	26.3	6
1950s	10.5	10
1960s	15.9	10
1970s	7.3	10
1980s	4.0	3
1990s	2.5	2
2000s	1.7	3
2010s	2.2	5

Compare with your own threshold in the threshold explorer. Fahrenheit thresholds are converted to tenths of a degree Celsius once, rounding half up.

Download the Data

Data for Nights at or below 0 C (32 F) in Phoenix, by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site from the threaded city record.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).