Weather Records on 12 September 1973

588 weather records were set or tied worldwide on 12 September 1973. Highest significance: Nelson, AU.

Key Facts for 12 September 1973

On 12 September 1973, 588 weather records were set or tied at long-record stations worldwide.
130 were record highs and 132 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 16 monthly and 572 daily.
Nelson set a daily record precipitation of 31.5 mm (1.2 in) on 12 September 1973.
Across 164 earlier years (1793 to 2026) the same calendar date averaged 412 records.

Record Map

588 stations

588 station records on 12 September 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 September 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Nelson	Australia	Record daily precipitation	31.5 mm (1.2 in)	62 of 100 (Major)
Ilfracombe Post Office	Australia	Record daily precipitation	31.8 mm (1.3 in)	61 of 100 (Major)
Laranjeiras	Brazil	Record daily precipitation	74.5 mm (2.9 in)	60 of 100 (Major)
Estancia	Brazil	Record daily precipitation	72.0 mm (2.8 in)	60 of 100 (Major)
Yabulu Qld Nickel	Australia	Record daily precipitation	56.9 mm (2.2 in)	58 of 100 (Notable)
Mount Gambier Post Office	Australia	Record daily precipitation	25.1 mm (1.0 in)	55 of 100 (Notable)
Yajlju	Russia	Record daily precipitation	47.7 mm (1.9 in)	53 of 100 (Notable)
Baton Rouge Metro AP	United States	Record daily precipitation	160.3 mm (6.3 in)	52 of 100 (Notable)
Penedo	Brazil	Record daily precipitation	55.0 mm (2.2 in)	51 of 100 (Notable)
Anadia	Brazil	Record daily precipitation	47.6 mm (1.9 in)	51 of 100 (Notable)
Tasiilaq	Greenland [Denmark]	Record daily precipitation	52.1 mm (2.1 in)	49 of 100 (Notable)
Listowel Downs	Australia	Record daily precipitation	27.9 mm (1.1 in)	47 of 100 (Notable)
Harrow (Post Office)	Australia	Record daily precipitation	26.9 mm (1.1 in)	47 of 100 (Notable)
Harrow (Pine Hills)	Australia	Record daily precipitation	31.8 mm (1.3 in)	47 of 100 (Notable)
Winona	United States	Record daily precipitation	26.9 mm (1.1 in)	47 of 100 (Notable)
Hackberry 8 SSW	United States	Record daily precipitation	99.1 mm (3.9 in)	47 of 100 (Notable)
Lyndhurst Station	Australia	Record daily precipitation	26.9 mm (1.1 in)	46 of 100 (Notable)
Denton	Australia	Record daily precipitation	30.5 mm (1.2 in)	46 of 100 (Notable)
Ashland	United States	Record daily precipitation	66.0 mm (2.6 in)	46 of 100 (Notable)
Toliness Station	Australia	Record daily precipitation	39.4 mm (1.6 in)	45 of 100 (Notable)
Limoeiro de Anadia	Brazil	Record daily precipitation	35.1 mm (1.4 in)	45 of 100 (Notable)
Presa Coyote	Mexico	Record daily precipitation	63.0 mm (2.5 in)	45 of 100 (Notable)
Box Butte Exp STN	United States	Record daily precipitation	41.9 mm (1.6 in)	45 of 100 (Notable)
Meade	United States	Record daily precipitation	91.4 mm (3.6 in)	44 of 100 (Notable)
Bundabaroo	Australia	Record daily precipitation	29.0 mm (1.1 in)	43 of 100 (Notable)
Cheyenne Wells 2NE	United States	Record daily precipitation	33.5 mm (1.3 in)	43 of 100 (Notable)
Townsville Railway STN	Australia	Record daily precipitation	28.7 mm (1.1 in)	42 of 100 (Notable)
Bird City 10S	United States	Record daily precipitation	55.9 mm (2.2 in)	42 of 100 (Notable)
Penola (Comaum Park)	Australia	Record daily precipitation	27.4 mm (1.1 in)	41 of 100 (Notable)
Babbiloora Station	Australia	Record daily precipitation	57.7 mm (2.3 in)	41 of 100 (Notable)
Melrose	Australia	Record daily precipitation	34.3 mm (1.4 in)	41 of 100 (Notable)
Trangie (Old Bundemar)	Australia	Record daily precipitation	31.0 mm (1.2 in)	41 of 100 (Notable)
Cicero Dantas	Brazil	Record daily precipitation	25.0 mm (1.0 in)	41 of 100 (Notable)
Lost River	Canada	Record daily precipitation	39.6 mm (1.6 in)	40 of 100 (Notable)
Liberal	United States	Record daily precipitation	45.0 mm (1.8 in)	40 of 100 (Notable)
Palisade	United States	Record daily precipitation	29.0 mm (1.1 in)	40 of 100 (Notable)
Frei Paulo	Brazil	Record daily precipitation	28.7 mm (1.1 in)	39 of 100 (Notable)
Wanless	Canada	Record daily precipitation	38.1 mm (1.5 in)	39 of 100 (Notable)
Kit Carson	United States	Record daily precipitation	40.9 mm (1.6 in)	38 of 100 (Notable)
Utica	United States	Record daily precipitation	37.3 mm (1.5 in)	38 of 100 (Notable)
Spring Creek Station	Australia	Record daily precipitation	28.4 mm (1.1 in)	37 of 100 (Notable)
Lucinda Township	Australia	Record daily precipitation	29.7 mm (1.2 in)	36 of 100 (Notable)
Russell Springs	United States	Record daily precipitation	29.7 mm (1.2 in)	36 of 100 (Notable)
Jericho Store	Australia	Record daily precipitation	48.5 mm (1.9 in)	35 of 100 (Notable)
Fort McPherson	Canada	Record high maximum temperature	19.4 C (66.9 F)	35 of 100 (Notable)
Prince Albert A	Canada	Record daily precipitation	41.1 mm (1.6 in)	35 of 100 (Notable)
Ellsworth 2W	United States	Record daily precipitation	39.9 mm (1.6 in)	35 of 100 (Notable)
Hooker	United States	Record daily precipitation	32.3 mm (1.3 in)	35 of 100 (Notable)
Japaratuba	Brazil	Record daily precipitation	50.0 mm (2.0 in)	34 of 100 (Routine)
Nurnberg	Germany	Record low minimum temperature	1.1 C (34.0 F)	34 of 100 (Routine)
Brewster 4W	United States	Record daily precipitation	28.7 mm (1.1 in)	34 of 100 (Routine)
Kidston Gold Mine	Australia	Record daily precipitation	25.4 mm (1.0 in)	33 of 100 (Routine)
Porto Real Do Colegio	Brazil	Record daily precipitation	31.0 mm (1.2 in)	33 of 100 (Routine)
Heinersreuth-Vollhof	Germany	Record low minimum temperature	0.5 C (32.9 F)	33 of 100 (Routine)
Weissenburg	Germany	Record low minimum temperature	0.8 C (33.4 F)	33 of 100 (Routine)
Oak Park Station	Australia	Record daily precipitation	26.2 mm (1.0 in)	32 of 100 (Routine)
Mingela Post Office	Australia	Record daily precipitation	26.9 mm (1.1 in)	32 of 100 (Routine)
Columbus 3 NE	United States	Record low maximum temperature	14.4 C (57.9 F)	32 of 100 (Routine)
Richmond Post Office	Australia	Record high minimum temperature	20.2 C (68.4 F)	31 of 100 (Routine)
Rosella Plains Station	Australia	Record daily precipitation	30.0 mm (1.2 in)	31 of 100 (Routine)

Counts by Type and Timescale

588 records

Records set or tied on 12 September 1973 by type: Highest daily maximum 43, Lowest daily maximum 66, Highest daily minimum 87, Lowest daily minimum 66, Heaviest daily rainfall 322, Deepest snow cover 4.

Records on 12 September 1973 by type
Record type	Records
Highest daily maximum	43
Lowest daily maximum	66
Highest daily minimum	87
Lowest daily minimum	66
Heaviest daily rainfall	322
Heaviest daily snowfall	0
Deepest snow cover	4

Records on 12 September 1973 by timescale: all-time 0, monthly 16, daily 572.

How Much Records Were Beaten By

520 broken records

Margins by which the 520 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 100.0. Ties are not counted.

Top 20 by Significance

12 September 1973

Top 20 records on 12 September 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 September 1973	Nelson, AU	daily rain	31.5 mm (1.2 in)	18.3 mm (0.7 in)	56 years	62 of 100 (Major)
12 September 1973	Ilfracombe Post Office, AU	daily rain	31.8 mm (1.3 in)	31.3 mm (1.2 in)	48 years	61 of 100 (Major)
12 September 1973	Laranjeiras, BR	daily rain	74.5 mm (2.9 in)	51.8 mm (2.0 in)	52 years	60 of 100 (Major)
12 September 1973	Estancia, BR	daily rain	72.0 mm (2.8 in)	41.4 mm (1.6 in)	52 years	60 of 100 (Major)
12 September 1973	Yabulu Qld Nickel, AU	daily rain	56.9 mm (2.2 in)	56.9 mm (2.2 in)	54 years	58 of 100 (Notable)
12 September 1973	Mount Gambier Post Office, AU	daily rain	25.1 mm (1.0 in)	9.1 mm (0.36 in)	93 years	55 of 100 (Notable)
12 September 1973	Yajlju, RU	daily rain	47.7 mm (1.9 in)	32.5 mm (1.3 in)	32 years	53 of 100 (Notable)
12 September 1973	Baton Rouge Metro AP, US	monthly rain	160.3 mm (6.3 in)	59.0 mm (2.3 in)	8 years	52 of 100 (Notable)
12 September 1973	Penedo, BR	daily rain	55.0 mm (2.2 in)	35.4 mm (1.4 in)	28 years	51 of 100 (Notable)
12 September 1973	Anadia, BR	daily rain	47.6 mm (1.9 in)	35.6 mm (1.4 in)	18 years	51 of 100 (Notable)
12 September 1973	Tasiilaq, GL	daily rain	52.1 mm (2.1 in)	33.3 mm (1.3 in)	31 years	49 of 100 (Notable)
12 September 1973	Listowel Downs, AU	daily rain	27.9 mm (1.1 in)	20.5 mm (0.8 in)	74 years	47 of 100 (Notable)
12 September 1973	Harrow (Post Office), AU	daily rain	26.9 mm (1.1 in)	16.2 mm (0.6 in)	54 years	47 of 100 (Notable)
12 September 1973	Harrow (Pine Hills), AU	daily rain	31.8 mm (1.3 in)	18.8 mm (0.7 in)	10 years	47 of 100 (Notable)
12 September 1973	Winona, US	daily rain	26.9 mm (1.1 in)	14.2 mm (0.6 in)	74 years	47 of 100 (Notable)
12 September 1973	Hackberry 8 SSW, US	daily rain	99.1 mm (3.9 in)	79.3 mm (3.1 in)	22 years	47 of 100 (Notable)
12 September 1973	Lyndhurst Station, AU	daily rain	26.9 mm (1.1 in)	25.4 mm (1.0 in)	58 years	46 of 100 (Notable)
12 September 1973	Denton, AU	daily rain	30.5 mm (1.2 in)	30.5 mm (1.2 in)	43 years	46 of 100 (Notable)
12 September 1973	Ashland, US	daily rain	66.0 mm (2.6 in)	45.4 mm (1.8 in)	36 years	46 of 100 (Notable)
12 September 1973	Toliness Station, AU	daily rain	39.4 mm (1.6 in)	27.2 mm (1.1 in)	48 years	45 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

1793 to 1973

Records set or tied on this calendar date in each year from 1793 to 1973. 1973 had 588 records.

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

Records on 09-12 in each year
Year	Records
1793	2
1809	1
1813	1
1814	2
1834	1
1837	2
1839	1
1847	1
1848	1
1854	4
1859	2
1860	2
1865	2
1866	1
1867	1
1868	2
1869	1
1872	2
1876	1
1878	1
1880	1
1881	1
1882	1
1884	2
1885	2
1886	1
1887	2
1888	2
1889	1
1891	4
1892	1
1893	4
1894	1
1895	5
1896	2
1897	3
1898	3
1899	4
1900	1
1901	5
1902	11
1903	18
1904	7
1905	8
1906	24
1907	11
1908	12
1909	11
1910	4
1911	15
1912	20
1913	12
1914	49
1915	71
1916	21
1917	231
1918	42
1919	69
1920	49
1921	60
1922	136
1923	33
1924	177
1925	443
1926	89
1927	339
1928	155
1929	118
1930	198
1931	648
1932	199
1933	360
1934	176
1935	441
1936	515
1937	318
1938	332
1939	702
1940	891
1941	172
1942	337
1943	544
1944	393
1945	414
1946	302
1947	596
1948	292
1949	512
1950	578
1951	399
1952	575
1953	515
1954	313
1955	457
1956	389
1957	727
1958	783
1959	536
1960	772
1961	750
1962	407
1963	466
1964	836
1965	459
1966	416
1967	510
1968	428
1969	558
1970	619
1971	593
1972	430
1973	588
1974	575
1975	1,102
1976	539
1977	524
1978	952
1979	765
1980	511
1981	424
1982	993
1983	915
1984	700
1985	876
1986	787
1987	686
1988	997
1989	1,313
1990	1,001
1991	672
1992	767
1993	798
1994	550
1995	532
1996	1,014
1997	737
1998	1,770
1999	938
2000	1,188
2001	797
2002	883
2003	830
2004	653
2005	1,032
2006	963
2007	776
2008	1,213
2009	876
2010	939
2011	988
2012	639
2013	1,066
2014	1,374
2015	704
2016	748
2017	1,114
2018	595
2019	884
2020	566
2021	513
2022	739
2023	844
2024	1,009
2025	433
2026	627

Download the Data

Data for records on 1973-09-12: 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	477
20 to 40	33
40 to 60	8
60 to 80	1
80 to 100	1