Weather Records on 4 September 1975

432 weather records were set or tied worldwide on 4 September 1975. Highest significance: Avoca (Railway House), AU.

Key Facts for 4 September 1975

On 4 September 1975, 432 weather records were set or tied at long-record stations worldwide.
93 were record highs and 92 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 11 monthly and 420 daily.
Avoca (Railway House) set a daily record precipitation of 42.0 mm (1.7 in) on 4 September 1975.
Across 165 earlier years (1802 to 2026) the same calendar date averaged 451 records.

Record Map

432 stations

432 station records on 4 September 1975 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 September 1975: highest significance records shown on the map
Station	Country	Type	Value	Significance
Avoca (Railway House)	Australia	Record daily precipitation	42.0 mm (1.7 in)	69 of 100 (Major)
Bindi	Australia	Record daily precipitation	55.4 mm (2.2 in)	67 of 100 (Major)
Swansea Post Office	Australia	Record daily precipitation	46.6 mm (1.8 in)	66 of 100 (Major)
Fingal (Legge Street)	Australia	Record daily precipitation	61.8 mm (2.4 in)	65 of 100 (Major)
Cranbrook (Cranbrook House)	Australia	Record daily precipitation	59.2 mm (2.3 in)	64 of 100 (Major)
Eddystone Point	Australia	Record daily precipitation	43.8 mm (1.7 in)	62 of 100 (Major)
Munchen-Nymphenburg	Germany	Record daily precipitation	61.9 mm (2.4 in)	61 of 100 (Major)
Ormley	Australia	Record daily precipitation	44.0 mm (1.7 in)	60 of 100 (Major)
Valmora	United States	Record daily precipitation	55.9 mm (2.2 in)	59 of 100 (Notable)
The Hermatige	Australia	Record daily precipitation	30.0 mm (1.2 in)	58 of 100 (Notable)
El Rito	United States	Record daily precipitation	39.6 mm (1.6 in)	58 of 100 (Notable)
Espanola	United States	Record daily precipitation	30.5 mm (1.2 in)	58 of 100 (Notable)
Lake Leake (Elizabeth River)	Australia	Record daily precipitation	49.2 mm (1.9 in)	56 of 100 (Notable)
Oatlands Post Office	Australia	Record daily precipitation	27.4 mm (1.1 in)	56 of 100 (Notable)
St Helens Post Office	Australia	Record daily precipitation	48.6 mm (1.9 in)	51 of 100 (Notable)
Flinders Island Airport	Australia	Record daily precipitation	32.2 mm (1.3 in)	51 of 100 (Notable)
Apslawn	Australia	Record daily precipitation	85.0 mm (3.3 in)	50 of 100 (Notable)
St Marys (Cullenswood)	Australia	Record daily precipitation	52.4 mm (2.1 in)	49 of 100 (Notable)
Runnymede (Whitemarsh)	Australia	Record daily precipitation	61.0 mm (2.4 in)	48 of 100 (Notable)
Lyons	United States	Record daily precipitation	42.2 mm (1.7 in)	48 of 100 (Notable)
Johnson Rch	United States	Record daily precipitation	26.7 mm (1.1 in)	48 of 100 (Notable)
Pioneer (Main Road)	Australia	Record daily precipitation	39.0 mm (1.5 in)	47 of 100 (Notable)
Swansea (Kelvedon)	Australia	Record daily precipitation	43.0 mm (1.7 in)	46 of 100 (Notable)
Tower Hill	Australia	Record daily precipitation	57.0 mm (2.2 in)	46 of 100 (Notable)
Tunnack Post Office	Australia	Record daily precipitation	38.8 mm (1.5 in)	45 of 100 (Notable)
Konstanz	Germany	Record daily precipitation	49.4 mm (1.9 in)	43 of 100 (Notable)
Maria Island (Darlington)	Australia	Record daily precipitation	32.6 mm (1.3 in)	42 of 100 (Notable)
Wales	United States	Record daily precipitation	28.4 mm (1.1 in)	42 of 100 (Notable)
Shannon River (Hermitage)	Australia	Record daily precipitation	26.4 mm (1.0 in)	41 of 100 (Notable)
Cliff 11 SE	United States	Record daily precipitation	63.5 mm (2.5 in)	41 of 100 (Notable)
Flora Valley Old	Australia	Record daily precipitation	35.0 mm (1.4 in)	40 of 100 (Notable)
Bandelier Nm	United States	Record daily precipitation	34.0 mm (1.3 in)	40 of 100 (Notable)
Pierre Rgnl AP	United States	Record daily precipitation	43.2 mm (1.7 in)	40 of 100 (Notable)
Nugent	Australia	Record daily precipitation	35.0 mm (1.4 in)	39 of 100 (Notable)
Menno	United States	Record daily precipitation	30.5 mm (1.2 in)	39 of 100 (Notable)
Stonehouse	Australia	Record daily precipitation	37.6 mm (1.5 in)	38 of 100 (Notable)
Oatlands (Bow Hill)	Australia	Record daily precipitation	28.8 mm (1.1 in)	38 of 100 (Notable)
Campbell Town Post Office	Australia	Record daily precipitation	29.2 mm (1.1 in)	38 of 100 (Notable)
Evart	United States	Record daily precipitation	53.1 mm (2.1 in)	38 of 100 (Notable)
Levendale	Australia	Record daily precipitation	36.0 mm (1.4 in)	37 of 100 (Notable)
Weissenburg	Germany	Record high minimum temperature	16.3 C (61.3 F)	37 of 100 (Notable)
Salem	United States	Record high minimum temperature	25.0 C (77.0 F)	36 of 100 (Notable)
Sandia Park	United States	Record daily precipitation	30.5 mm (1.2 in)	35 of 100 (Notable)
Georgetown Post Office	Australia	Record high minimum temperature	23.0 C (73.4 F)	34 of 100 (Routine)
East London -Signal STN	South Africa	Record daily precipitation	27.6 mm (1.1 in)	34 of 100 (Routine)
Boolburra	Australia	Record daily precipitation	61.0 mm (2.4 in)	33 of 100 (Routine)
Coimbra	Portugal	Record daily precipitation	26.4 mm (1.0 in)	33 of 100 (Routine)
Golden	United States	Record daily precipitation	26.2 mm (1.0 in)	32 of 100 (Routine)
White Lake	United States	Record daily precipitation	41.1 mm (1.6 in)	32 of 100 (Routine)
Premaydena Hatchery	Australia	Record daily precipitation	25.4 mm (1.0 in)	31 of 100 (Routine)
Velmo	Russia	Record daily precipitation	31.3 mm (1.2 in)	31 of 100 (Routine)
Memooloo	Australia	Record daily precipitation	31.0 mm (1.2 in)	30 of 100 (Routine)
Waren	Germany	Record high minimum temperature	16.5 C (61.7 F)	30 of 100 (Routine)
Imuris (Smn)	Mexico	Record high minimum temperature	25.6 C (78.1 F)	30 of 100 (Routine)
Manassa	United States	Record low maximum temperature	17.2 C (63.0 F)	30 of 100 (Routine)
Bartow 1SE	United States	Record low minimum temperature	18.3 C (64.9 F)	30 of 100 (Routine)
Chacon	United States	Record daily precipitation	27.9 mm (1.1 in)	30 of 100 (Routine)
Jericho (Bowsden)	Australia	Record daily precipitation	26.0 mm (1.0 in)	29 of 100 (Routine)
Harrington Harbour	Canada	Record daily precipitation	30.7 mm (1.2 in)	29 of 100 (Routine)
Conception	United States	Record daily precipitation	76.2 mm (3.0 in)	29 of 100 (Routine)

Counts by Type and Timescale

432 records

Records set or tied on 4 September 1975 by type: Highest daily maximum 31, Lowest daily maximum 42, Highest daily minimum 62, Lowest daily minimum 50, Heaviest daily rainfall 247.

Records on 4 September 1975 by type
Record type	Records
Highest daily maximum	31
Lowest daily maximum	42
Highest daily minimum	62
Lowest daily minimum	50
Heaviest daily rainfall	247
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 September 1975 by timescale: all-time 1, monthly 11, daily 420.

How Much Records Were Beaten By

348 broken records

Margins by which the 348 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 74.6. Ties are not counted.

Top 20 by Significance

4 September 1975

Top 20 records on 4 September 1975 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 September 1975	Avoca (Railway House), AU	daily rain	42.0 mm (1.7 in)	26.8 mm (1.1 in)	70 years	69 of 100 (Major)
4 September 1975	Bindi, AU	daily rain	55.4 mm (2.2 in)	30.5 mm (1.2 in)	64 years	67 of 100 (Major)
4 September 1975	Swansea Post Office, AU	daily rain	46.6 mm (1.8 in)	28.6 mm (1.1 in)	56 years	66 of 100 (Major)
4 September 1975	Fingal (Legge Street), AU	daily rain	61.8 mm (2.4 in)	36.4 mm (1.4 in)	56 years	65 of 100 (Major)
4 September 1975	Cranbrook (Cranbrook House), AU	daily rain	59.2 mm (2.3 in)	32.8 mm (1.3 in)	56 years	64 of 100 (Major)
4 September 1975	Eddystone Point, AU	daily rain	43.8 mm (1.7 in)	24.5 mm (1.0 in)	56 years	62 of 100 (Major)
4 September 1975	Munchen-Nymphenburg, DE	daily rain	61.9 mm (2.4 in)	24.0 mm (0.9 in)	82 years	61 of 100 (Major)
4 September 1975	Ormley, AU	daily rain	44.0 mm (1.7 in)	22.7 mm (0.9 in)	56 years	60 of 100 (Major)
4 September 1975	Valmora, US	daily rain	55.9 mm (2.2 in)	44.5 mm (1.8 in)	54 years	59 of 100 (Notable)
4 September 1975	The Hermatige, AU	daily rain	30.0 mm (1.2 in)	17.8 mm (0.7 in)	56 years	58 of 100 (Notable)
4 September 1975	El Rito, US	daily rain	39.6 mm (1.6 in)	34.5 mm (1.4 in)	36 years	58 of 100 (Notable)
4 September 1975	Espanola, US	daily rain	30.5 mm (1.2 in)	19.1 mm (0.8 in)	64 years	58 of 100 (Notable)
4 September 1975	Lake Leake (Elizabeth River), AU	daily rain	49.2 mm (1.9 in)	23.8 mm (0.9 in)	56 years	56 of 100 (Notable)
4 September 1975	Oatlands Post Office, AU	daily rain	27.4 mm (1.1 in)	14.7 mm (0.6 in)	56 years	56 of 100 (Notable)
4 September 1975	St Helens Post Office, AU	daily rain	48.6 mm (1.9 in)	19.4 mm (0.8 in)	56 years	51 of 100 (Notable)
4 September 1975	Flinders Island Airport, AU	daily rain	32.2 mm (1.3 in)	21.8 mm (0.9 in)	29 years	51 of 100 (Notable)
4 September 1975	Apslawn, AU	daily rain	85.0 mm (3.3 in)	74.6 mm (2.9 in)	9 years	50 of 100 (Notable)
4 September 1975	St Marys (Cullenswood), AU	daily rain	52.4 mm (2.1 in)	25.2 mm (1.0 in)	56 years	49 of 100 (Notable)
4 September 1975	Runnymede (Whitemarsh), AU	daily rain	61.0 mm (2.4 in)	54.6 mm (2.1 in)	14 years	48 of 100 (Notable)
4 September 1975	Lyons, US	daily rain	42.2 mm (1.7 in)	25.4 mm (1.0 in)	78 years	48 of 100 (Notable)

Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.

The Same Date in Other Years

1802 to 1975

Records set or tied on this calendar date in each year from 1802 to 1975. 1975 had 432 records.

Counts for years before the ledger starts come from the same station rules.

Records on 09-04 in each year
Year	Records
1802	1
1805	1
1823	1
1833	1
1837	1
1839	1
1845	1
1847	1
1850	1
1854	1
1856	1
1857	1
1858	1
1861	1
1863	1
1864	1
1867	1
1868	1
1869	2
1871	1
1872	4
1874	1
1875	1
1877	1
1880	4
1881	1
1883	2
1885	3
1887	1
1888	2
1889	1
1890	1
1891	5
1894	4
1895	6
1896	1
1897	4
1898	9
1899	4
1900	1
1901	4
1902	4
1903	2
1904	7
1905	18
1906	16
1907	22
1908	9
1909	23
1910	91
1911	25
1912	29
1913	29
1914	19
1915	37
1916	24
1917	40
1918	96
1919	48
1920	105
1921	105
1922	62
1923	325
1924	167
1925	339
1926	256
1927	68
1928	341
1929	371
1930	102
1931	477
1932	429
1933	424
1934	393
1935	514
1936	309
1937	411
1938	236
1939	434
1940	287
1941	528
1942	323
1943	472
1944	341
1945	542
1946	431
1947	618
1948	409
1949	370
1950	642
1951	404
1952	645
1953	869
1954	372
1955	465
1956	586
1957	250
1958	384
1959	316
1960	552
1961	909
1962	733
1963	443
1964	507
1965	611
1966	428
1967	786
1968	546
1969	510
1970	644
1971	717
1972	513
1973	530
1974	2,279
1975	432
1976	582
1977	386
1978	940
1979	461
1980	355
1981	582
1982	617
1983	1,040
1984	1,107
1985	915
1986	663
1987	685
1988	1,259
1989	681
1990	787
1991	708
1992	1,132
1993	859
1994	1,001
1995	1,287
1996	907
1997	1,452
1998	1,564
1999	1,479
2000	1,336
2001	833
2002	767
2003	1,094
2004	898
2005	998
2006	1,268
2007	1,077
2008	1,335
2009	914
2010	1,804
2011	1,310
2012	1,209
2013	630
2014	461
2015	893
2016	597
2017	881
2018	758
2019	616
2020	957
2021	544
2022	1,256
2023	1,290
2024	985
2025	635
2026	1,222

Download the Data

Data for records on 1975-09-04: CSV or JSON. Field meanings are on the data page.

Sources: 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)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 10	262
10 to 20	50
20 to 30	23
30 to 40	9
40 to 50	2
50 to 60	1
60 to 70	0
70 to 80	1