Nornalup Threshold Days by Year (ASN00009589)

4 fixed thresholds counted per year at Nornalup (ASN00009589): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Nornalup Thresholds

Nornalup: days with 10 mm (0.39 in) or more of precipitation in 89 years, most in 1926 with 63.
Nornalup: days with 25 mm (0.98 in) or more of precipitation in 89 years, most in 1939 with 18.
Nornalup: days with 50 mm (1.97 in) or more of precipitation in 39 years, most in 1978 with 4.
Nornalup: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1978 with 3.
4 fixed thresholds have at least one qualifying day at Nornalup.

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

89 years with a qualifying day

Days per year at Nornalup with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 63 in 1926.

Days with 10 mm (0.39 in) or more of precipitation per year at Nornalup
Year	Days	Decade average
1914	31	43.8
1915	48	43.8
1916	38	43.8
1917	61	43.8
1918	55	43.8
1919	30	43.8
1920	32	45
1921	41	45
1922	45	45
1923	51	45
1924	41	45
1925	28	45
1926	63	45
1927	50	45
1928	47	45
1929	52	45
1930	34	41.5
1931	50	41.5
1932	38	41.5
1933	56	41.5
1934	42	41.5
1935	44	41.5
1936	36	41.5
1937	38	41.5
1938	32	41.5
1939	45	41.5
1941	38	45.6
1942	58	45.6
1943	44	45.6
1944	35	45.6
1945	53	45.6
1946	40	45.6
1947	55	45.6
1948	42	45.6
1949	45	45.6
1950	53	46
1951	42	46
1952	43	46
1960	43	43.7
1961	45	43.7
1962	44	43.7
1963	44	43.7
1964	50	43.7
1965	54	43.7
1966	41	43.7
1967	46	43.7
1968	39	43.7
1969	31	43.7
1970	51	34.7
1971	39	34.7
1972	31	34.7
1974	35	34.7
1977	33	34.7
1978	21	34.7
1979	33	34.7
1980	47	38.6
1986	25	38.6
1987	26	38.6
1988	47	38.6
1989	48	38.6
1990	38	38.8
1991	44	38.8
1992	44	38.8
1993	42	38.8
1994	33	38.8
1995	32	38.8
2004	31	34.3
2005	37	34.3
2006	22	34.3
2007	38	34.3
2008	45	34.3
2009	33	34.3
2010	21	32.2
2011	40	32.2
2012	30	32.2
2013	41	32.2
2014	28	32.2
2015	29	32.2
2016	41	32.2
2017	33	32.2
2018	27	32.2
2019	32	32.2
2020	44	32
2021	39	32
2022	27	32
2023	29	32
2024	26	32
2025	40	32
2026	19	32

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

First to last qualifying date each year at Nornalup
Year	First date	Last date
1914	1914-02-17	1914-12-13
1915	1915-02-24	1915-11-17
1916	1916-01-04	1916-11-23
1917	1917-01-29	1917-12-20
1918	1918-01-19	1918-11-26
1919	1919-01-31	1919-11-05
1920	1920-02-21	1920-10-10
1921	1921-01-08	1921-12-10
1922	1922-01-21	1922-12-18
1923	1923-01-19	1923-10-04
1924	1924-03-31	1924-11-10
1925	1925-01-25	1925-12-20
1926	1926-02-23	1926-12-15
1927	1927-01-09	1927-12-15
1928	1928-01-09	1928-12-21
1929	1929-02-08	1929-12-24
1930	1930-04-15	1930-12-28
1931	1931-03-11	1931-12-18
1932	1932-04-23	1932-10-29
1933	1933-01-17	1933-11-25
1934	1934-03-04	1934-12-05
1935	1935-02-02	1935-12-01
1936	1936-01-19	1936-10-16
1937	1937-03-11	1937-12-06
1938	1938-03-16	1938-10-28
1939	1939-01-19	1939-11-12
1941	1941-03-02	1941-11-16
1942	1942-03-15	1942-12-23
1943	1943-01-01	1943-10-13
1944	1944-04-27	1944-12-08
1945	1945-03-25	1945-12-25
1946	1946-04-19	1946-12-12
1947	1947-01-28	1947-12-21
1948	1948-03-31	1948-12-24
1949	1949-01-26	1949-11-19
1950	1950-01-05	1950-12-27
1951	1951-01-02	1951-12-06
1952	1952-02-13	1952-12-18
1960	1960-01-01	1960-12-02
1961	1961-01-26	1961-11-20
1962	1962-03-16	1962-12-29
1963	1963-01-27	1963-11-05
1964	1964-04-11	1964-12-19
1965	1965-01-22	1965-12-26
1966	1966-04-12	1966-12-27
1967	1967-03-15	1967-12-24
1968	1968-03-17	1968-10-14
1969	1969-03-13	1969-11-04
1970	1970-02-17	1970-11-13
1971	1971-02-06	1971-12-10
1972	1972-03-02	1972-10-08
1974	1974-01-27	1974-11-24
1977	1977-01-24	1977-11-24
1978	1978-04-16	1978-12-02
1979	1979-01-12	1979-10-19
1980	1980-01-03	1980-11-27
1986	1986-02-22	1986-10-18
1987	1987-03-17	1987-11-29
1988	1988-03-24	1988-11-07
1989	1989-01-06	1989-10-21
1990	1990-01-10	1990-11-19
1991	1991-05-08	1991-11-14
1992	1992-04-19	1992-12-09
1993	1993-03-20	1993-11-10
1994	1994-01-25	1994-10-25
1995	1995-03-25	1995-12-25
2004	2004-04-13	2004-11-24
2005	2005-02-15	2005-12-23
2006	2006-03-23	2006-12-08
2007	2007-01-03	2007-12-17
2008	2008-04-01	2008-12-21
2009	2009-02-26	2009-11-13
2010	2010-01-20	2010-12-05
2011	2011-01-06	2011-12-15
2012	2012-04-05	2012-12-12
2013	2013-01-16	2013-11-23
2014	2014-04-28	2014-11-13
2015	2015-03-15	2015-12-06
2016	2016-01-18	2016-12-12
2017	2017-02-21	2017-12-18
2018	2018-04-23	2018-12-17
2019	2019-01-23	2019-11-02
2020	2020-01-03	2020-11-30
2021	2021-01-27	2021-11-22
2022	2022-03-27	2022-11-18
2023	2023-03-17	2023-11-14
2024	2024-05-31	2024-11-20
2025	2025-03-14	2025-11-24
2026	2026-03-28	2026-08-18

Every Fixed Threshold

Fixed thresholds at Nornalup
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	89	63	1926	19
25 mm (0.98 in): Days with 25 mm or more rain	89	18	1939	4
50 mm (1.97 in): Days with 50 mm or more rain	39	4	1978	1
100 mm (3.94 in): Days with 100 mm or more rain	4	3	1978	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1914.

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Data for Nornalup 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Nornalup Threshold Days by Year (ASN00009589)

Key Facts for Nornalup Thresholds

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

Every Fixed Threshold

Download the Data

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