Margaret River 1 Threshold Days by Year

4 fixed thresholds counted per year at Margaret River 1 (ASN00009540): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Margaret River 1 Thresholds

Margaret River 1: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 1917 with 54.
Margaret River 1: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 1921 with 21.
Margaret River 1: days with 50 mm (1.97 in) or more of precipitation in 25 years, most in 1921 with 8.
Margaret River 1: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1917 with 1.
4 fixed thresholds have at least one qualifying day at Margaret River 1.

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

38 years with a qualifying day

Days per year at Margaret River 1 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 54 in 1917.

Days with 10 mm (0.39 in) or more of precipitation per year at Margaret River 1
Year	Days	Decade average
1909	44	44
1910	53	37.1
1911	22	37.1
1912	34	37.1
1913	47	37.1
1914	29	37.1
1915	38	37.1
1916	36	37.1
1917	54	37.1
1918	29	37.1
1919	29	37.1
1920	37	36.8
1921	47	36.8
1922	36	36.8
1923	39	36.8
1924	37	36.8
1925	32	36.8
1926	44	36.8
1927	33	36.8
1928	26	36.8
1929	37	36.8
1930	30	35.4
1931	32	35.4
1932	35	35.4
1933	38	35.4
1934	42	35.4
1935	32	35.4
1936	30	35.4
1937	43	35.4
1938	34	35.4
1939	38	35.4
1940	26	34.1
1941	32	34.1
1942	45	34.1
1943	34	34.1
1944	31	34.1
1945	40	34.1
1948	31	34.1

For each year, a bar from the first to the last day at Margaret River 1 meeting 10 mm (0.39 in).

First to last qualifying date each year at Margaret River 1
Year	First date	Last date
1909	1909-03-27	1909-11-07
1910	1910-01-04	1910-11-15
1911	1911-04-27	1911-10-29
1912	1912-04-02	1912-12-29
1913	1913-01-13	1913-12-20
1914	1914-02-17	1914-11-14
1915	1915-02-26	1915-10-20
1916	1916-01-01	1916-11-23
1917	1917-02-10	1917-12-20
1918	1918-02-15	1918-10-27
1919	1919-01-17	1919-11-24
1920	1920-03-28	1920-09-06
1921	1921-02-19	1921-12-08
1922	1922-03-02	1922-12-06
1923	1923-01-19	1923-09-13
1924	1924-03-31	1924-11-10
1925	1925-05-07	1925-11-16
1926	1926-02-14	1926-10-21
1927	1927-01-11	1927-10-06
1928	1928-01-09	1928-10-20
1929	1929-02-07	1929-12-22
1930	1930-04-15	1930-11-02
1931	1931-03-11	1931-12-18
1932	1932-03-28	1932-11-09
1933	1933-01-16	1933-10-16
1934	1934-03-06	1934-12-29
1935	1935-02-14	1935-12-01
1936	1936-05-05	1936-09-21
1937	1937-02-11	1937-12-05
1938	1938-02-28	1938-12-04
1939	1939-01-21	1939-11-12
1940	1940-05-15	1940-10-19
1941	1941-03-16	1941-11-16
1942	1942-03-19	1942-10-27
1943	1943-03-08	1943-09-19
1944	1944-04-29	1944-12-07
1945	1945-03-21	1945-10-04
1948	1948-03-29	1948-11-16

Every Fixed Threshold

Fixed thresholds at Margaret River 1
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	38	54	1917	31
25 mm (0.98 in): Days with 25 mm or more rain	38	21	1921	9
50 mm (1.97 in): Days with 50 mm or more rain	25	8	1921	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1917	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1909.

Download the Data

Data for Margaret River 1 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).

Margaret River 1 Threshold Days by Year

Key Facts for Margaret River 1 Thresholds

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

Every Fixed Threshold

Download the Data

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