Weather Records on 1 September 1975

939 weather records were set or tied worldwide on 1 September 1975. Highest significance: Yarraman Post Office, AU.

Key Facts for 1 September 1975

On 1 September 1975, 939 weather records were set or tied at long-record stations worldwide.
134 were record highs and 268 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 72 monthly and 862 daily.
Yarraman Post Office set a monthly record daily precipitation of 94.8 mm (3.7 in) on 1 September 1975.
Across 161 earlier years (1797 to 2026) the same calendar date averaged 438 records.

Record Map

939 stations

939 station records on 1 September 1975 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 September 1975: highest significance records shown on the map
Station	Country	Type	Value	Significance
Yarraman Post Office	Australia	Record daily precipitation	94.8 mm (3.7 in)	73 of 100 (Major)
Port Isabel	United States	Record daily precipitation	277.1 mm (10.9 in)	73 of 100 (Major)
Harrison 1 NNW	United States	Record daily precipitation	67.8 mm (2.7 in)	71 of 100 (Major)
Wheeling Warwood Dam	United States	Record daily precipitation	119.4 mm (4.7 in)	71 of 100 (Major)
Boonara	Australia	Record daily precipitation	100.0 mm (3.9 in)	70 of 100 (Major)
Bald Hills Post Office	Australia	Record daily precipitation	51.6 mm (2.0 in)	70 of 100 (Major)
Caboolture Post Office	Australia	Record daily precipitation	49.2 mm (1.9 in)	69 of 100 (Major)
Narangba Railway STN	Australia	Record daily precipitation	156.4 mm (6.2 in)	67 of 100 (Major)
Tenterfield (Federation Park)	Australia	Record daily precipitation	48.6 mm (1.9 in)	66 of 100 (Major)
W Branch 3SE	United States	Record daily precipitation	96.0 mm (3.8 in)	65 of 100 (Major)
Crows Nest	Australia	Record daily precipitation	56.0 mm (2.2 in)	64 of 100 (Major)
Condamine Plains	Australia	Record daily precipitation	34.6 mm (1.4 in)	63 of 100 (Major)
Benarkin Forest Station	Australia	Record daily precipitation	67.8 mm (2.7 in)	62 of 100 (Major)
Margate Collins St	Australia	Record daily precipitation	64.2 mm (2.5 in)	62 of 100 (Major)
Maryland	Australia	Record daily precipitation	48.2 mm (1.9 in)	62 of 100 (Major)
Palmwoods Post Office	Australia	Record daily precipitation	56.0 mm (2.2 in)	61 of 100 (Major)
Mercedes 6 SSE	United States	Record daily precipitation	128.5 mm (5.1 in)	61 of 100 (Major)
Woodford Post Office	Australia	Record daily precipitation	56.2 mm (2.2 in)	60 of 100 (Major)
Toowoomba	Australia	Record daily precipitation	59.4 mm (2.3 in)	59 of 100 (Notable)
St George Post Office	Australia	Record daily precipitation	29.2 mm (1.1 in)	59 of 100 (Notable)
Rabula (Bos)	South Africa	Record daily precipitation	57.0 mm (2.2 in)	59 of 100 (Notable)
Chinchilla Water Treatment Pla	Australia	Record daily precipitation	80.0 mm (3.1 in)	58 of 100 (Notable)
Dalby Post Office	Australia	Record daily precipitation	56.0 mm (2.2 in)	58 of 100 (Notable)
Forest Hill	Australia	Record daily precipitation	60.0 mm (2.4 in)	57 of 100 (Notable)
Laidley Post Office	Australia	Record daily precipitation	54.6 mm (2.1 in)	57 of 100 (Notable)
Monsildale	Australia	Record daily precipitation	56.0 mm (2.2 in)	57 of 100 (Notable)
Brisbane Regional Office	Australia	Record daily precipitation	40.4 mm (1.6 in)	56 of 100 (Notable)
Spring Bluff Railway STN	Australia	Record daily precipitation	69.0 mm (2.7 in)	56 of 100 (Notable)
Brigalow Post Office	Australia	Record daily precipitation	60.0 mm (2.4 in)	56 of 100 (Notable)
Cambooya Post Office	Australia	Record daily precipitation	57.6 mm (2.3 in)	56 of 100 (Notable)
Wallumbilla Post Office	Australia	Record daily precipitation	57.0 mm (2.2 in)	56 of 100 (Notable)
Port Alfred	South Africa	Record daily precipitation	60.9 mm (2.4 in)	56 of 100 (Notable)
Gatton Allan Street	Australia	Record daily precipitation	53.0 mm (2.1 in)	55 of 100 (Notable)
Maleny Tamarind St	Australia	Record daily precipitation	61.8 mm (2.4 in)	55 of 100 (Notable)
Nambour Bowling Club	Australia	Record daily precipitation	49.6 mm (2.0 in)	54 of 100 (Notable)
Goombungee Post Office	Australia	Record daily precipitation	51.8 mm (2.0 in)	54 of 100 (Notable)
Hale Loud Dam	United States	Record daily precipitation	64.0 mm (2.5 in)	54 of 100 (Notable)
Jimna Composite	Australia	Record daily precipitation	59.0 mm (2.3 in)	53 of 100 (Notable)
Jimbour State School	Australia	Record daily precipitation	94.2 mm (3.7 in)	53 of 100 (Notable)
Mooloolah Post Office	Australia	Record daily precipitation	51.0 mm (2.0 in)	52 of 100 (Notable)
Inglewood Post Office	Australia	Record daily precipitation	43.4 mm (1.7 in)	52 of 100 (Notable)
Bathurst Ns,	South Africa	Record daily precipitation	90.0 mm (3.5 in)	52 of 100 (Notable)
Gary	United States	Record daily precipitation	96.5 mm (3.8 in)	52 of 100 (Notable)
Googa Googa Crk Forest	Australia	Record daily precipitation	75.2 mm (3.0 in)	51 of 100 (Notable)
Westbrook	Australia	Record daily precipitation	70.4 mm (2.8 in)	51 of 100 (Notable)
Nanango Wills St	Australia	Record daily precipitation	59.0 mm (2.3 in)	50 of 100 (Notable)
Fir Glen	South Africa	Record daily precipitation	70.5 mm (2.8 in)	50 of 100 (Notable)
Kentani (Bos)	South Africa	Record daily precipitation	96.0 mm (3.8 in)	50 of 100 (Notable)
Esk Post Office	Australia	Record daily precipitation	68.0 mm (2.7 in)	49 of 100 (Notable)
Murphys Creek Post Office	Australia	Record daily precipitation	50.4 mm (2.0 in)	49 of 100 (Notable)
Brisbane Show Grounds	Australia	Record daily precipitation	45.0 mm (1.8 in)	49 of 100 (Notable)
Grahamstown	South Africa	Record daily precipitation	89.0 mm (3.5 in)	49 of 100 (Notable)
Rosewood Walloon Rd	Australia	Record daily precipitation	55.5 mm (2.2 in)	48 of 100 (Notable)
Yandina Post Office	Australia	Record daily precipitation	47.0 mm (1.9 in)	48 of 100 (Notable)
Bowenville	Australia	Record daily precipitation	57.0 mm (2.2 in)	48 of 100 (Notable)
Fernflat	Australia	Record daily precipitation	52.0 mm (2.0 in)	48 of 100 (Notable)
Dinmore Post Office	Australia	Record daily precipitation	42.6 mm (1.7 in)	47 of 100 (Notable)
Doctors Creek	Australia	Record daily precipitation	50.0 mm (2.0 in)	47 of 100 (Notable)
Carawatha	Australia	Record daily precipitation	53.4 mm (2.1 in)	47 of 100 (Notable)
Jondaryan Post Office	Australia	Record daily precipitation	50.4 mm (2.0 in)	47 of 100 (Notable)

Counts by Type and Timescale

939 records

Records set or tied on 1 September 1975 by type: Highest daily maximum 76, Lowest daily maximum 166, Highest daily minimum 58, Lowest daily minimum 102, Heaviest daily rainfall 537.

Records on 1 September 1975 by type
Record type	Records
Highest daily maximum	76
Lowest daily maximum	166
Highest daily minimum	58
Lowest daily minimum	102
Heaviest daily rainfall	537
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 1 September 1975 by timescale: all-time 5, monthly 72, daily 862.

How Much Records Were Beaten By

801 broken records

Margins by which the 801 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 100.6. Ties are not counted.

Top 20 by Significance

1 September 1975

Top 20 records on 1 September 1975 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 September 1975	Yarraman Post Office, AU	monthly rain	94.8 mm (3.7 in)	42.0 mm (1.7 in)	57 years	73 of 100 (Major)
1 September 1975	Port Isabel, US	all-time rain	277.1 mm (10.9 in)	87.9 mm (3.5 in)	19 years	73 of 100 (Major)
1 September 1975	Harrison 1 NNW, US	daily rain	67.8 mm (2.7 in)	45.7 mm (1.8 in)	77 years	71 of 100 (Major)
1 September 1975	Wheeling Warwood Dam, US	all-time rain	119.4 mm (4.7 in)	44.2 mm (1.7 in)	20 years	71 of 100 (Major)
1 September 1975	Boonara, AU	daily rain	100.0 mm (3.9 in)	77.9 mm (3.1 in)	74 years	70 of 100 (Major)
1 September 1975	Bald Hills Post Office, AU	daily rain	51.6 mm (2.0 in)	39.4 mm (1.6 in)	74 years	70 of 100 (Major)
1 September 1975	Caboolture Post Office, AU	daily rain	49.2 mm (1.9 in)	33.5 mm (1.3 in)	74 years	69 of 100 (Major)
1 September 1975	Narangba Railway STN, AU	monthly rain	156.4 mm (6.2 in)	82.7 mm (3.3 in)	41 years	67 of 100 (Major)
1 September 1975	Tenterfield (Federation Park), AU	daily rain	48.6 mm (1.9 in)	28.3 mm (1.1 in)	99 years	66 of 100 (Major)
1 September 1975	W Branch 3SE, US	monthly rain	96.0 mm (3.8 in)	37.8 mm (1.5 in)	27 years	65 of 100 (Major)
1 September 1975	Crows Nest, AU	daily rain	56.0 mm (2.2 in)	30.6 mm (1.2 in)	73 years	64 of 100 (Major)
1 September 1975	Condamine Plains, AU	daily rain	34.6 mm (1.4 in)	27.0 mm (1.1 in)	86 years	63 of 100 (Major)
1 September 1975	Benarkin Forest Station, AU	monthly rain	67.8 mm (2.7 in)	31.7 mm (1.2 in)	29 years	62 of 100 (Major)
1 September 1975	Margate Collins St, AU	daily rain	64.2 mm (2.5 in)	35.0 mm (1.4 in)	73 years	62 of 100 (Major)
1 September 1975	Maryland, AU	daily rain	48.2 mm (1.9 in)	25.3 mm (1.0 in)	93 years	62 of 100 (Major)
1 September 1975	Palmwoods Post Office, AU	daily rain	56.0 mm (2.2 in)	35.7 mm (1.4 in)	74 years	61 of 100 (Major)
1 September 1975	Mercedes 6 SSE, US	daily rain	128.5 mm (5.1 in)	100.6 mm (4.0 in)	50 years	61 of 100 (Major)
1 September 1975	Woodford Post Office, AU	daily rain	56.2 mm (2.2 in)	30.8 mm (1.2 in)	74 years	60 of 100 (Major)
1 September 1975	Toowoomba, AU	daily rain	59.4 mm (2.3 in)	37.0 mm (1.5 in)	32 years	59 of 100 (Notable)
1 September 1975	St George Post Office, AU	daily rain	29.2 mm (1.1 in)	23.6 mm (0.9 in)	86 years	59 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

1797 to 1975

Records set or tied on this calendar date in each year from 1797 to 1975. 1975 had 939 records.

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

Records on 09-01 in each year
Year	Records
1797	1
1806	1
1819	1
1827	1
1831	1
1838	1
1851	1
1853	1
1854	1
1857	1
1858	1
1859	1
1860	2
1861	1
1865	1
1866	1
1867	2
1869	3
1871	1
1873	1
1876	2
1877	2
1878	3
1879	2
1881	5
1883	1
1886	3
1887	3
1888	2
1890	2
1892	2
1894	3
1897	4
1898	10
1899	3
1900	2
1901	14
1902	5
1903	16
1904	9
1905	6
1906	26
1907	14
1908	26
1909	34
1910	22
1911	16
1912	47
1913	32
1914	23
1915	46
1916	16
1917	24
1918	31
1919	19
1920	31
1921	46
1922	67
1923	75
1924	210
1925	127
1926	182
1927	136
1928	166
1929	324
1930	264
1931	233
1932	550
1933	622
1934	654
1935	584
1936	385
1937	502
1938	373
1939	303
1940	333
1941	497
1942	532
1943	578
1944	377
1945	497
1946	642
1947	555
1948	460
1949	1,102
1950	849
1951	668
1952	644
1953	937
1954	407
1955	413
1956	504
1957	320
1958	427
1959	519
1960	408
1961	531
1962	368
1963	416
1964	621
1965	657
1966	596
1967	1,263
1968	604
1969	493
1970	502
1971	464
1972	518
1973	874
1974	895
1975	939
1976	627
1977	500
1978	809
1979	459
1980	671
1981	649
1982	642
1983	1,167
1984	619
1985	901
1986	964
1987	909
1988	651
1989	823
1990	749
1991	687
1992	1,010
1993	1,122
1994	1,291
1995	1,165
1996	823
1997	1,161
1998	1,159
1999	925
2000	1,613
2001	904
2002	778
2003	1,254
2004	827
2005	901
2006	1,157
2007	976
2008	1,204
2009	1,003
2010	1,313
2011	1,071
2012	874
2013	775
2014	515
2015	661
2016	522
2017	686
2018	399
2019	800
2020	689
2021	751
2022	1,016
2023	720
2024	938
2025	359
2026	521

Download the Data

Data for records on 1975-09-01: 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 20	644
20 to 40	133
40 to 60	15
60 to 80	5
80 to 100	3
100 to 120	1