Parramatta Threshold Days by Year

5 fixed thresholds counted per year at Parramatta (ASN00066046): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Parramatta Thresholds

Parramatta: days with 10 mm (0.39 in) or more of precipitation in 61 years, most in 1950 with 52.
Parramatta: days with 25 mm (0.98 in) or more of precipitation in 61 years, most in 1950 with 19.
Parramatta: days with 50 mm (1.97 in) or more of precipitation in 54 years, most in 1836 with 11.
Parramatta: days with 100 mm (3.94 in) or more of precipitation in 28 years, most in 1860 with 3.
5 fixed thresholds have at least one qualifying day at Parramatta.

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

61 years with a qualifying day

Days per year at Parramatta with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 52 in 1950.

Days with 10 mm (0.39 in) or more of precipitation per year at Parramatta
Year	Days	Decade average
1832	19	27.5
1836	36	27.5
1858	26	23.5
1859	21	23.5
1860	39	39
1871	25	20.8
1872	22	20.8
1874	25	20.8
1875	11	20.8
1909	18	18
1910	26	27.4
1911	34	27.4
1912	29	27.4
1913	28	27.4
1914	32	27.4
1915	14	27.4
1916	35	27.4
1917	32	27.4
1918	18	27.4
1919	26	27.4
1920	32	22.6
1921	30	22.6
1922	19	22.6
1923	19	22.6
1924	25	22.6
1925	16	22.6
1926	14	22.6
1927	22	22.6
1928	21	22.6
1929	28	22.6
1930	22	22.6
1931	23	22.6
1932	18	22.6
1933	30	22.6
1934	39	22.6
1935	17	22.6
1936	16	22.6
1937	22	22.6
1938	22	22.6
1939	17	22.6
1940	15	22.7
1941	13	22.7
1942	27	22.7
1943	32	22.7
1944	14	22.7
1945	25	22.7
1946	18	22.7
1947	31	22.7
1948	16	22.7
1949	36	22.7
1950	52	30.5
1951	29	30.5
1952	32	30.5
1953	19	30.5
1954	29	30.5
1955	36	30.5
1956	36	30.5
1957	17	30.5
1958	25	30.5
1959	30	30.5
1960	25	25

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

First to last qualifying date each year at Parramatta
Year	First date	Last date
1832	1832-01-27	1832-12-20
1836	1836-01-27	1836-12-13
1858	1858-01-13	1858-12-13
1859	1859-01-10	1859-12-30
1860	1860-01-04	1860-11-19
1871	1871-02-02	1871-12-09
1872	1872-01-23	1872-12-16
1874	1874-01-23	1874-12-11
1875	1875-02-05	1875-12-25
1909	1909-01-06	1909-12-24
1910	1910-01-12	1910-12-19
1911	1911-01-12	1911-12-05
1912	1912-01-06	1912-12-12
1913	1913-03-07	1913-12-25
1914	1914-01-20	1914-12-31
1915	1915-03-30	1915-12-18
1916	1916-01-29	1916-12-13
1917	1917-01-03	1917-12-09
1918	1918-01-11	1918-09-17
1919	1919-02-25	1919-12-30
1920	1920-01-04	1920-12-17
1921	1921-01-04	1921-12-31
1922	1922-01-03	1922-12-22
1923	1923-01-26	1923-12-27
1924	1924-01-21	1924-12-16
1925	1925-01-16	1925-11-21
1926	1926-03-18	1926-12-29
1927	1927-01-07	1927-11-28
1928	1928-01-06	1928-10-12
1929	1929-02-07	1929-12-27
1930	1930-01-13	1930-12-30
1931	1931-03-06	1931-12-23
1932	1932-02-08	1932-12-24
1933	1933-01-05	1933-12-23
1934	1934-01-06	1934-12-24
1935	1935-01-06	1935-12-05
1936	1936-01-02	1936-12-27
1937	1937-01-02	1937-12-29
1938	1938-01-18	1938-11-23
1939	1939-01-17	1939-11-10
1940	1940-04-05	1940-12-21
1941	1941-01-03	1941-12-21
1942	1942-02-21	1942-12-27
1943	1943-01-02	1943-12-18
1944	1944-01-02	1944-09-29
1945	1945-01-12	1945-12-28
1946	1946-02-12	1946-12-15
1947	1947-01-10	1947-12-25
1948	1948-01-02	1948-12-31
1949	1949-01-01	1949-12-20
1950	1950-01-01	1950-12-09
1951	1951-01-14	1951-10-13
1952	1952-01-07	1952-12-31
1953	1953-01-06	1953-11-27
1954	1954-01-01	1954-12-17
1955	1955-01-23	1955-12-29
1956	1956-01-12	1956-12-04
1957	1957-01-04	1957-12-31
1958	1958-01-11	1958-12-19
1959	1959-01-22	1959-12-08
1960	1960-01-04	1960-12-19

Every Fixed Threshold

Fixed thresholds at Parramatta
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	61	52	1950	25
25 mm (0.98 in): Days with 25 mm or more rain	61	19	1950	9
50 mm (1.97 in): Days with 50 mm or more rain	54	11	1836	2
100 mm (3.94 in): Days with 100 mm or more rain	28	3	1860	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1914	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1832.

Download the Data

Data for Parramatta 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

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

Parramatta Threshold Days by Year

Key Facts for Parramatta Thresholds

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

Every Fixed Threshold

Download the Data

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