Mallala Threshold Days by Year (ASN00023009)

4 fixed thresholds counted per year at Mallala (ASN00023009): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mallala Thresholds

Mallala: days with 10 mm (0.39 in) or more of precipitation in 99 years, most in 1923 with 20.
Mallala: days with 25 mm (0.98 in) or more of precipitation in 66 years, most in 1889 with 8.
Mallala: days with 50 mm (1.97 in) or more of precipitation in 11 years, most in 1997 with 2.
Mallala: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1941 with 1.
4 fixed thresholds have at least one qualifying day at Mallala.

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

99 years with a qualifying day

Days per year at Mallala with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1923.

Days with 10 mm (0.39 in) or more of precipitation per year at Mallala
Year	Days	Decade average
1884	13	11.8
1885	9	11.8
1886	11	11.8
1887	12	11.8
1888	7	11.8
1889	19	11.8
1890	16	11.8
1891	7	11.8
1892	12	11.8
1893	16	11.8
1894	17	11.8
1895	10	11.8
1896	11	11.8
1897	8	11.8
1898	12	11.8
1899	9	11.8
1900	13	12
1901	9	12
1902	6	12
1903	16	12
1904	13	12
1905	11	12
1906	15	12
1907	9	12
1908	12	12
1909	16	12
1910	15	9
1911	8	9
1912	9	9
1913	8	9
1914	3	9
1915	12	9
1916	11	9
1917	12	9
1918	5	9
1919	7	9
1920	10	10.5
1921	13	10.5
1922	11	10.5
1923	20	10.5
1924	10	10.5
1925	7	10.5
1926	14	10.5
1927	7	10.5
1928	9	10.5
1929	4	10.5
1930	7	8.6
1931	8	8.6
1932	12	8.6
1933	9	8.6
1934	6	8.6
1935	10	8.6
1936	11	8.6
1937	8	8.6
1938	5	8.6
1939	10	8.6
1940	4	8.9
1941	16	8.9
1942	11	8.9
1943	4	8.9
1944	4	8.9
1945	7	8.9
1946	10	8.9
1947	12	8.9
1948	9	8.9
1949	12	8.9
1950	14	9
1951	11	9
1952	15	9
1953	13	9
1954	6	9
1955	9	9
1956	10	9
1957	2	9
1958	7	9
1959	3	9
1960	16	7.8
1961	8	7.8
1962	6	7.8
1963	9	7.8
1964	6	7.8
1965	4	7.8
1966	6	7.8
1967	1	7.8
1968	13	7.8
1969	9	7.8
1970	6	8
1971	11	8
1972	5	8
1973	9	8
1976	4	8
1978	13	8
1997	15	10
1998	10	10
1999	5	10
2000	11	9.7
2002	6	9.7
2005	12	9.7
2019	5	5

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

First to last qualifying date each year at Mallala
Year	First date	Last date
1884	1884-01-20	1884-12-15
1885	1885-02-28	1885-12-22
1886	1886-01-06	1886-11-25
1887	1887-02-10	1887-12-14
1888	1888-05-03	1888-09-21
1889	1889-01-02	1889-11-15
1890	1890-01-27	1890-11-08
1891	1891-03-30	1891-12-12
1892	1892-01-23	1892-10-24
1893	1893-04-03	1893-11-13
1894	1894-01-15	1894-12-26
1895	1895-01-04	1895-11-30
1896	1896-01-18	1896-12-28
1897	1897-01-09	1897-09-29
1898	1898-04-04	1898-10-28
1899	1899-02-27	1899-11-06
1900	1900-03-15	1900-12-03
1901	1901-01-26	1901-10-28
1902	1902-03-26	1902-12-17
1903	1903-01-21	1903-12-28
1904	1904-01-04	1904-10-19
1905	1905-01-03	1905-10-28
1906	1906-03-24	1906-12-17
1907	1907-04-05	1907-11-23
1908	1908-02-08	1908-10-16
1909	1909-01-04	1909-11-13
1910	1910-03-05	1910-12-23
1911	1911-05-10	1911-12-05
1912	1912-06-25	1912-11-18
1913	1913-02-14	1913-12-23
1914	1914-03-13	1914-12-15
1915	1915-04-11	1915-10-22
1916	1916-03-07	1916-11-25
1917	1917-01-22	1917-12-12
1918	1918-05-10	1918-10-07
1919	1919-02-16	1919-12-27
1920	1920-03-07	1920-12-27
1921	1921-01-02	1921-11-27
1922	1922-01-06	1922-12-19
1923	1923-05-08	1923-12-14
1924	1924-02-19	1924-11-11
1925	1925-02-07	1925-09-17
1926	1926-02-25	1926-11-21
1927	1927-03-22	1927-12-02
1928	1928-01-27	1928-09-30
1929	1929-07-12	1929-12-28
1930	1930-05-11	1930-10-29
1931	1931-05-11	1931-11-17
1932	1932-02-05	1932-10-26
1933	1933-01-23	1933-12-27
1934	1934-09-15	1934-12-09
1935	1935-03-21	1935-12-24
1936	1936-01-09	1936-12-17
1937	1937-01-19	1937-12-11
1938	1938-04-16	1938-10-23
1939	1939-02-28	1939-11-04
1940	1940-01-05	1940-07-13
1941	1941-01-24	1941-11-19
1942	1942-01-20	1942-12-05
1943	1943-02-17	1943-12-17
1944	1944-05-02	1944-12-12
1945	1945-01-10	1945-12-17
1946	1946-01-17	1946-12-25
1947	1947-03-12	1947-12-23
1948	1948-04-11	1948-12-25
1949	1949-02-20	1949-11-21
1950	1950-02-01	1950-12-20
1951	1951-05-13	1951-12-09
1952	1952-01-25	1952-11-27
1953	1953-01-05	1953-12-30
1954	1954-04-14	1954-12-12
1955	1955-02-08	1955-09-27
1956	1956-03-21	1956-09-03
1957	1957-06-21	1957-10-23
1958	1958-04-14	1958-09-17
1959	1959-03-31	1959-09-19
1960	1960-02-02	1960-11-12
1961	1961-02-08	1961-11-17
1962	1962-05-01	1962-12-29
1963	1963-01-13	1963-08-15
1964	1964-04-08	1964-11-18
1965	1965-05-14	1965-12-23
1966	1966-01-12	1966-12-01
1967	1967-02-24	1967-02-24
1968	1968-01-20	1968-12-23
1969	1969-02-22	1969-12-01
1970	1970-01-01	1970-12-05
1971	1971-03-01	1971-12-10
1972	1972-01-07	1972-12-27
1973	1973-02-05	1973-10-18
1976	1976-02-26	1976-11-02
1978	1978-01-23	1978-09-22
1997	1997-01-22	1997-12-18
1998	1998-01-13	1998-11-11
1999	1999-05-25	1999-12-03
2000	2000-02-22	2000-11-09
2002	2002-01-21	2002-12-31
2005	2005-02-02	2005-12-16
2019	2019-05-10	2019-12-02

Every Fixed Threshold

Fixed thresholds at Mallala
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	99	20	1923	5
25 mm (0.98 in): Days with 25 mm or more rain	66	8	1889	2
50 mm (1.97 in): Days with 50 mm or more rain	11	2	1997	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1941	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1884.

Download the Data

Data for Mallala 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).

Mallala Threshold Days by Year (ASN00023009)

Key Facts for Mallala Thresholds

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

Every Fixed Threshold

Download the Data

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