Whyalla (Mullaquana) Threshold Days by Year (ASN00018058)

4 fixed thresholds counted per year at Whyalla (Mullaquana) (ASN00018058): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Whyalla (Mullaquana) Thresholds

Whyalla (Mullaquana): days with 10 mm (0.39 in) or more of precipitation in 94 years, most in 1973 with 17.
Whyalla (Mullaquana): days with 25 mm (0.98 in) or more of precipitation in 61 years, most in 1974 with 7.
Whyalla (Mullaquana): days with 50 mm (1.97 in) or more of precipitation in 11 years, most in 1938 with 2.
Whyalla (Mullaquana): days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1946 with 1.
4 fixed thresholds have at least one qualifying day at Whyalla (Mullaquana).

Days with 10 mm (0.39 in) or more of precipitation

94 years with a qualifying day

Days per year at Whyalla (Mullaquana) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 17 in 1973.

Days with 10 mm (0.39 in) or more of precipitation per year at Whyalla (Mullaquana)
Year	Days	Decade average
1912	7	5.1
1913	2	5.1
1914	2	5.1
1915	6	5.1
1916	5	5.1
1917	10	5.1
1918	4	5.1
1919	5	5.1
1920	5	4.9
1921	6	4.9
1922	2	4.9
1923	4	4.9
1924	5	4.9
1925	6	4.9
1926	8	4.9
1927	1	4.9
1928	7	4.9
1930	7	4.4
1931	2	4.4
1932	5	4.4
1933	2	4.4
1934	5	4.4
1935	6	4.4
1936	4	4.4
1937	4	4.4
1938	4	4.4
1939	5	4.4
1940	3	5.3
1941	8	5.3
1942	9	5.3
1943	1	5.3
1944	3	5.3
1945	6	5.3
1946	8	5.3
1947	7	5.3
1948	2	5.3
1949	6	5.3
1950	3	5
1951	4	5
1952	9	5
1953	3	5
1954	6	5
1955	7	5
1956	3	5
1963	9	6.3
1964	5	6.3
1965	4	6.3
1966	6	6.3
1967	3	6.3
1968	8	6.3
1969	9	6.3
1970	2	8
1971	6	8
1972	4	8
1973	17	8
1974	16	8
1975	9	8
1976	7	8
1977	2	8
1978	10	8
1979	7	8
1980	1	5.7
1981	4	5.7
1982	3	5.7
1983	7	5.7
1984	9	5.7
1985	8	5.7
1986	5	5.7
1988	6	5.7
1989	8	5.7
1990	4	7.7
1991	5	7.7
1992	14	7.7
1993	10	7.7
1994	6	7.7
1995	8	7.7
1996	4	7.7
1997	12	7.7
1998	6	7.7
2000	3	4.6
2001	7	4.6
2002	3	4.6
2003	9	4.6
2004	1	4.6
2005	6	4.6
2006	4	4.6
2007	6	4.6
2008	2	4.6
2009	5	4.6
2010	9	6.5
2011	9	6.5
2018	5	6.5
2019	3	6.5
2020	9	9

For each year, a bar from the first to the last day at Whyalla (Mullaquana) meeting 10 mm (0.39 in).

First to last qualifying date each year at Whyalla (Mullaquana)
Year	First date	Last date
1912	1912-02-23	1912-11-17
1913	1913-09-18	1913-09-19
1914	1914-09-09	1914-11-17
1915	1915-04-06	1915-12-05
1916	1916-06-20	1916-12-02
1917	1917-01-30	1917-12-12
1918	1918-02-19	1918-09-04
1919	1919-02-16	1919-12-27
1920	1920-06-01	1920-11-12
1921	1921-02-28	1921-05-30
1922	1922-10-24	1922-12-09
1923	1923-05-05	1923-10-25
1924	1924-01-02	1924-12-14
1925	1925-01-12	1925-11-19
1926	1926-03-25	1926-09-26
1927	1927-11-01	1927-11-01
1928	1928-01-19	1928-05-25
1930	1930-02-12	1930-12-06
1931	1931-05-10	1931-06-24
1932	1932-02-05	1932-09-29
1933	1933-03-04	1933-08-31
1934	1934-02-11	1934-11-06
1935	1935-03-21	1935-12-24
1936	1936-01-03	1936-10-08
1937	1937-01-19	1937-11-30
1938	1938-02-20	1938-10-24
1939	1939-02-24	1939-11-03
1940	1940-01-05	1940-09-21
1941	1941-01-24	1941-11-19
1942	1942-01-20	1942-12-25
1943	1943-08-18	1943-08-18
1944	1944-01-29	1944-12-21
1945	1945-01-15	1945-12-16
1946	1946-01-17	1946-12-24
1947	1947-01-29	1947-10-01
1948	1948-05-05	1948-12-25
1949	1949-02-28	1949-11-20
1950	1950-02-01	1950-10-12
1951	1951-02-20	1951-07-31
1952	1952-01-05	1952-11-19
1953	1953-07-21	1953-12-05
1954	1954-01-28	1954-10-23
1955	1955-02-17	1955-06-08
1956	1956-01-20	1956-07-09
1963	1963-01-13	1963-10-28
1964	1964-01-08	1964-11-18
1965	1965-08-10	1965-09-04
1966	1966-02-15	1966-12-03
1967	1967-01-24	1967-08-18
1968	1968-01-18	1968-07-02
1969	1969-02-08	1969-09-13
1970	1970-09-26	1970-12-11
1971	1971-03-14	1971-12-09
1972	1972-01-09	1972-08-13
1973	1973-02-05	1973-12-14
1974	1974-01-28	1974-10-16
1975	1975-01-07	1975-10-24
1976	1976-02-29	1976-10-12
1977	1977-08-31	1977-10-02
1978	1978-01-23	1978-11-18
1979	1979-02-24	1979-12-29
1980	1980-10-06	1980-10-06
1981	1981-01-26	1981-07-20
1982	1982-03-07	1982-09-25
1983	1983-02-28	1983-12-06
1984	1984-04-14	1984-12-10
1985	1985-03-15	1985-12-08
1986	1986-06-17	1986-11-16
1988	1988-03-29	1988-12-05
1989	1989-03-10	1989-12-02
1990	1990-04-20	1990-12-07
1991	1991-04-14	1991-11-03
1992	1992-01-08	1992-12-18
1993	1993-01-21	1993-12-21
1994	1994-04-12	1994-07-30
1995	1995-01-14	1995-12-05
1996	1996-02-28	1996-10-16
1997	1997-01-15	1997-12-18
1998	1998-02-07	1998-12-13
2000	2000-02-20	2000-11-09
2001	2001-04-30	2001-11-22
2002	2002-01-22	2002-11-26
2003	2003-01-30	2003-11-18
2004	2004-12-08	2004-12-08
2005	2005-08-30	2005-12-12
2006	2006-04-28	2006-12-22
2007	2007-01-19	2007-12-22
2008	2008-06-06	2008-12-12
2009	2009-05-24	2009-11-21
2010	2010-01-12	2010-12-08
2011	2011-02-12	2011-12-18
2018	2018-01-30	2018-12-16
2019	2019-05-10	2019-09-21
2020	2020-01-06	2020-12-21

Every Fixed Threshold

Fixed thresholds at Whyalla (Mullaquana)
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	94	17	1973	9
25 mm (0.98 in): Days with 25 mm or more rain	61	7	1974	2
50 mm (1.97 in): Days with 50 mm or more rain	11	2	1938	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1946	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.

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Data for Whyalla (Mullaquana) threshold days 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.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Whyalla (Mullaquana) Threshold Days by Year (ASN00018058)

Key Facts for Whyalla (Mullaquana) Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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