Armadale Threshold Days by Year (ASN00009001)

3 fixed thresholds counted per year at Armadale (ASN00009001): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Armadale Thresholds

Armadale: days with 10 mm (0.39 in) or more of precipitation in 75 years, most in 1917 with 53.
Armadale: days with 25 mm (0.98 in) or more of precipitation in 75 years, most in 1939 with 15.
Armadale: days with 50 mm (1.97 in) or more of precipitation in 40 years, most in 1928 with 3.
3 fixed thresholds have at least one qualifying day at Armadale.

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

75 years with a qualifying day

Days per year at Armadale with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 53 in 1917.

Days with 10 mm (0.39 in) or more of precipitation per year at Armadale
Year	Days	Decade average
1908	24	28.5
1909	33	28.5
1910	43	33.6
1911	23	33.6
1912	29	33.6
1913	34	33.6
1914	15	33.6
1915	45	33.6
1916	34	33.6
1917	53	33.6
1918	36	33.6
1919	24	33.6
1920	38	33.2
1921	36	33.2
1922	25	33.2
1923	40	33.2
1924	28	33.2
1925	24	33.2
1926	44	33.2
1927	41	33.2
1928	35	33.2
1929	21	33.2
1930	32	26.2
1931	28	26.2
1932	26	26.2
1933	25	26.2
1934	23	26.2
1935	19	26.2
1936	26	26.2
1937	28	26.2
1938	27	26.2
1939	28	26.2
1940	17	29.9
1941	35	29.9
1942	38	29.9
1943	31	29.9
1944	22	29.9
1945	36	29.9
1946	42	29.9
1947	34	29.9
1948	22	29.9
1949	22	29.9
1950	31	30
1951	32	30
1952	33	30
1953	29	30
1954	22	30
1955	46	30
1956	33	30
1957	28	30
1958	25	30
1959	21	30
1960	21	26.8
1961	28	26.8
1962	23	26.8
1963	38	26.8
1964	33	26.8
1965	31	26.8
1966	25	26.8
1967	26	26.8
1968	28	26.8
1969	15	26.8
1970	33	21.8
1971	22	21.8
1972	17	21.8
1976	22	21.8
1977	14	21.8
1978	23	21.8
1986	25	25
1993	20	21.3
1997	22	21.3
1999	22	21.3
2002	19	20.5
2004	22	20.5
2016	22	22

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

First to last qualifying date each year at Armadale
Year	First date	Last date
1908	1908-05-03	1908-11-25
1909	1909-03-28	1909-11-07
1910	1910-01-04	1910-10-16
1911	1911-04-23	1911-10-29
1912	1912-04-02	1912-10-20
1913	1913-04-11	1913-12-20
1914	1914-02-17	1914-11-13
1915	1915-02-26	1915-10-21
1916	1916-01-29	1916-11-23
1917	1917-02-10	1917-12-21
1918	1918-02-15	1918-11-30
1919	1919-04-04	1919-12-10
1920	1920-03-29	1920-10-10
1921	1921-03-22	1921-10-15
1922	1922-02-26	1922-09-25
1923	1923-01-20	1923-12-15
1924	1924-05-12	1924-11-10
1925	1925-03-06	1925-10-11
1926	1926-03-11	1926-11-19
1927	1927-01-12	1927-10-29
1928	1928-05-21	1928-10-21
1929	1929-02-16	1929-10-29
1930	1930-04-15	1930-12-13
1931	1931-04-09	1931-10-07
1932	1932-04-06	1932-10-28
1933	1933-01-16	1933-10-03
1934	1934-03-09	1934-09-11
1935	1935-04-02	1935-10-28
1936	1936-05-09	1936-10-02
1937	1937-02-11	1937-10-22
1938	1938-03-13	1938-11-02
1939	1939-04-10	1939-10-27
1940	1940-04-27	1940-10-21
1941	1941-04-01	1941-09-20
1942	1942-03-19	1942-12-01
1943	1943-01-31	1943-10-12
1944	1944-04-30	1944-12-07
1945	1945-03-26	1945-12-25
1946	1946-04-19	1946-11-15
1947	1947-04-16	1947-10-25
1948	1948-03-30	1948-12-24
1949	1949-03-12	1949-11-14
1950	1950-05-05	1950-11-09
1951	1951-02-22	1951-12-05
1952	1952-03-28	1952-12-18
1953	1953-02-02	1953-11-16
1954	1954-04-23	1954-11-11
1955	1955-02-15	1955-12-14
1956	1956-03-04	1956-11-29
1957	1957-04-22	1957-10-21
1958	1958-05-08	1958-12-22
1959	1959-04-27	1959-12-31
1960	1960-01-01	1960-09-23
1961	1961-03-14	1961-10-12
1962	1962-05-12	1962-12-06
1963	1963-02-20	1963-10-17
1964	1964-02-24	1964-12-19
1965	1965-05-07	1965-11-04
1966	1966-04-12	1966-12-27
1967	1967-04-22	1967-12-11
1968	1968-02-03	1968-10-15
1969	1969-03-19	1969-11-03
1970	1970-02-07	1970-11-04
1971	1971-03-29	1971-10-19
1972	1972-04-20	1972-10-28
1976	1976-01-07	1976-11-28
1977	1977-05-16	1977-10-12
1978	1978-02-24	1978-10-01
1986	1986-02-22	1986-10-17
1993	1993-05-19	1993-10-02
1997	1997-03-29	1997-10-10
1999	1999-01-23	1999-10-14
2002	2002-04-17	2002-11-01
2004	2004-02-18	2004-11-10
2016	2016-01-19	2016-09-27

Every Fixed Threshold

Fixed thresholds at Armadale
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	75	53	1917	22
25 mm (0.98 in): Days with 25 mm or more rain	75	15	1939	8
50 mm (1.97 in): Days with 50 mm or more rain	40	3	1928	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1908.

Download the Data

Data for Armadale 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).

Armadale Threshold Days by Year (ASN00009001)

Key Facts for Armadale Thresholds

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

Every Fixed Threshold

Download the Data

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