Coan Downs Threshold Days by Year

4 fixed thresholds counted per year at Coan Downs (ASN00049009): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Coan Downs Thresholds

Coan Downs: days with 10 mm (0.39 in) or more of precipitation in 71 years, most in 1889 with 24.
Coan Downs: days with 25 mm (0.98 in) or more of precipitation in 60 years, most in 1955 with 8.
Coan Downs: days with 50 mm (1.97 in) or more of precipitation in 21 years, most in 1887 with 3.
Coan Downs: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1921 with 1.
4 fixed thresholds have at least one qualifying day at Coan Downs.

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

71 years with a qualifying day

Days per year at Coan Downs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 24 in 1889.

Days with 10 mm (0.39 in) or more of precipitation per year at Coan Downs
Year	Days	Decade average
1881	12	13.3
1882	12	13.3
1883	8	13.3
1884	9	13.3
1886	11	13.3
1887	23	13.3
1888	7	13.3
1889	24	13.3
1890	14	10.8
1891	14	10.8
1892	14	10.8
1893	7	10.8
1894	17	10.8
1895	5	10.8
1896	12	10.8
1897	9	10.8
1898	9	10.8
1899	7	10.8
1900	10	8.7
1901	4	8.7
1902	4	8.7
1903	5	8.7
1904	9	8.7
1905	13	8.7
1906	16	8.7
1907	9	8.7
1908	8	8.7
1909	9	8.7
1910	9	10.3
1911	16	10.3
1912	11	10.3
1913	14	10.3
1914	5	10.3
1915	10	10.3
1916	15	10.3
1917	16	10.3
1918	3	10.3
1919	4	10.3
1920	9	10.4
1921	13	10.4
1922	7	10.4
1923	7	10.4
1924	13	10.4
1925	15	10.4
1926	10	10.4
1928	12	10.4
1929	8	10.4
1930	12	11
1931	9	11
1932	12	11
1940	6	10.5
1941	7	10.5
1942	12	10.5
1943	6	10.5
1944	6	10.5
1945	10	10.5
1946	11	10.5
1947	19	10.5
1948	16	10.5
1949	12	10.5
1950	19	13.5
1951	13	13.5
1952	12	13.5
1953	11	13.5
1954	16	13.5
1955	16	13.5
1956	24	13.5
1957	5	13.5
1958	10	13.5
1959	9	13.5
1960	12	12

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

First to last qualifying date each year at Coan Downs
Year	First date	Last date
1881	1881-01-10	1881-11-14
1882	1882-02-22	1882-12-05
1883	1883-02-26	1883-10-14
1884	1884-03-10	1884-12-14
1886	1886-05-19	1886-12-07
1887	1887-01-24	1887-12-30
1888	1888-01-04	1888-12-28
1889	1889-01-04	1889-12-25
1890	1890-02-21	1890-12-29
1891	1891-01-05	1891-12-02
1892	1892-01-13	1892-11-21
1893	1893-05-28	1893-12-29
1894	1894-01-26	1894-12-27
1895	1895-01-04	1895-12-11
1896	1896-01-25	1896-11-27
1897	1897-01-09	1897-12-19
1898	1898-01-13	1898-12-23
1899	1899-05-02	1899-11-04
1900	1900-01-06	1900-11-17
1901	1901-01-01	1901-08-20
1902	1902-10-29	1902-12-17
1903	1903-09-01	1903-12-25
1904	1904-01-02	1904-12-18
1905	1905-01-04	1905-12-31
1906	1906-02-28	1906-11-19
1907	1907-01-27	1907-12-28
1908	1908-01-24	1908-10-15
1909	1909-02-25	1909-11-01
1910	1910-01-29	1910-12-13
1911	1911-01-13	1911-12-16
1912	1912-03-10	1912-12-26
1913	1913-02-06	1913-12-31
1914	1914-06-30	1914-12-26
1915	1915-05-15	1915-12-15
1916	1916-01-28	1916-12-30
1917	1917-01-22	1917-11-21
1918	1918-05-16	1918-10-08
1919	1919-02-26	1919-12-28
1920	1920-07-29	1920-12-06
1921	1921-03-02	1921-12-27
1922	1922-01-13	1922-12-07
1923	1923-06-04	1923-12-18
1924	1924-01-02	1924-12-27
1925	1925-01-13	1925-12-13
1926	1926-03-18	1926-12-27
1928	1928-01-18	1928-11-04
1929	1929-03-23	1929-12-28
1930	1930-05-13	1930-12-16
1931	1931-04-01	1931-12-02
1932	1932-02-10	1932-11-24
1940	1940-04-04	1940-12-07
1941	1941-01-03	1941-12-01
1942	1942-02-15	1942-12-31
1943	1943-05-15	1943-11-19
1944	1944-02-07	1944-08-23
1945	1945-01-14	1945-10-27
1946	1946-01-18	1946-12-29
1947	1947-02-07	1947-12-18
1948	1948-01-02	1948-12-30
1949	1949-01-26	1949-11-12
1950	1950-01-19	1950-11-21
1951	1951-01-06	1951-12-26
1952	1952-03-21	1952-11-26
1953	1953-01-06	1953-11-06
1954	1954-01-19	1954-12-12
1955	1955-02-16	1955-12-19
1956	1956-01-20	1956-10-15
1957	1957-02-08	1957-11-05
1958	1958-02-17	1958-11-30
1959	1959-02-07	1959-10-10
1960	1960-01-09	1960-11-22

Every Fixed Threshold

Fixed thresholds at Coan Downs
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	71	24	1889	12
25 mm (0.98 in): Days with 25 mm or more rain	60	8	1955	4
50 mm (1.97 in): Days with 50 mm or more rain	21	3	1887	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1921	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1881.

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Data for Coan Downs 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

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

Coan Downs Threshold Days by Year

Key Facts for Coan Downs Thresholds

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

Every Fixed Threshold

Download the Data

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