Weather Records on 12 September 1925

443 weather records were set or tied worldwide on 12 September 1925. Highest significance: Grand Coteau, US.

Key Facts for 12 September 1925

On 12 September 1925, 443 weather records were set or tied at long-record stations worldwide.
191 were record highs and 29 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 14 monthly and 428 daily.
Grand Coteau set a daily record precipitation of 105.4 mm (4.1 in) on 12 September 1925.
Across 164 earlier years (1793 to 2026) the same calendar date averaged 413 records.

Record Map

443 stations

443 station records on 12 September 1925 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 September 1925: highest significance records shown on the map
Station	Country	Type	Value	Significance
Grand Coteau	United States	Record daily precipitation	105.4 mm (4.1 in)	52 of 100 (Notable)
Mannum Council Depot	Australia	Record daily precipitation	32.0 mm (1.3 in)	51 of 100 (Notable)
Bordertown	Australia	Record daily precipitation	38.6 mm (1.5 in)	50 of 100 (Notable)
Tareena	Australia	Record daily precipitation	26.2 mm (1.0 in)	48 of 100 (Notable)
Wolseley	Australia	Record daily precipitation	43.2 mm (1.7 in)	47 of 100 (Notable)
Milang	Australia	Record daily precipitation	26.9 mm (1.1 in)	46 of 100 (Notable)
Murray Bridge Comparison	Australia	Record daily precipitation	33.3 mm (1.3 in)	44 of 100 (Notable)
Serviceton	Australia	Record daily precipitation	33.3 mm (1.3 in)	44 of 100 (Notable)
Naracoorte	Australia	Record daily precipitation	34.0 mm (1.3 in)	43 of 100 (Notable)
Mundulla	Australia	Record daily precipitation	36.6 mm (1.4 in)	41 of 100 (Notable)
Naracoorte Cave Range	Australia	Record daily precipitation	29.2 mm (1.1 in)	41 of 100 (Notable)
Clinton #1	United States	Record daily precipitation	70.6 mm (2.8 in)	41 of 100 (Notable)
Langhorne Creek	Australia	Record daily precipitation	30.0 mm (1.2 in)	38 of 100 (Notable)
Murray Bridge (Tepko)	Australia	Record daily precipitation	30.5 mm (1.2 in)	37 of 100 (Notable)
St Joseph	United States	Record daily precipitation	86.1 mm (3.4 in)	37 of 100 (Notable)
Frances	Australia	Record daily precipitation	25.9 mm (1.0 in)	36 of 100 (Notable)
Lake Victoria (Cal-Lal)	Australia	Record daily precipitation	26.7 mm (1.1 in)	35 of 100 (Notable)
Cornwall	United States	Record daily precipitation	76.2 mm (3.0 in)	34 of 100 (Routine)
Callington	Australia	Record daily precipitation	30.2 mm (1.2 in)	33 of 100 (Routine)
Vysnij Volocek	Russia	Record daily precipitation	33.6 mm (1.3 in)	33 of 100 (Routine)
New Madrid	United States	Record daily precipitation	49.5 mm (1.9 in)	31 of 100 (Routine)
Lucindale Post Office	Australia	Record daily precipitation	29.7 mm (1.2 in)	30 of 100 (Routine)
Lake Charles Chenault	United States	Record daily precipitation	111.3 mm (4.4 in)	28 of 100 (Routine)
Welland	Canada	Record daily precipitation	32.0 mm (1.3 in)	27 of 100 (Routine)
Coonalpyn	Australia	Record daily precipitation	29.7 mm (1.2 in)	26 of 100 (Routine)
Kongal	Australia	Record daily precipitation	27.2 mm (1.1 in)	26 of 100 (Routine)
Lillimur Estate	Australia	Record daily precipitation	27.2 mm (1.1 in)	26 of 100 (Routine)
Kingston Queens U	Canada	Record daily precipitation	26.9 mm (1.1 in)	26 of 100 (Routine)
Carlinville	United States	Record daily precipitation	29.7 mm (1.2 in)	25 of 100 (Routine)
1 N McLeansboro	United States	Record daily precipitation	48.8 mm (1.9 in)	25 of 100 (Routine)
Portland	United States	Record high minimum temperature	18.9 C (66.0 F)	25 of 100 (Routine)
Okolona	United States	Record daily precipitation	25.9 mm (1.0 in)	24 of 100 (Routine)
Concord	United States	Record high minimum temperature	20.0 C (68.0 F)	24 of 100 (Routine)
Hewitt	United States	Record daily precipitation	55.1 mm (2.2 in)	24 of 100 (Routine)
Sedan	Australia	Record daily precipitation	32.3 mm (1.3 in)	23 of 100 (Routine)
Howell Wwtp	United States	Record daily precipitation	35.6 mm (1.4 in)	23 of 100 (Routine)
Pontotoc	United States	Record daily precipitation	43.2 mm (1.7 in)	23 of 100 (Routine)
Cantara	Australia	Record daily precipitation	31.8 mm (1.3 in)	22 of 100 (Routine)
Windsor Riverside	Canada	Record daily precipitation	30.0 mm (1.2 in)	22 of 100 (Routine)
Monroe #2	United States	Record daily precipitation	41.4 mm (1.6 in)	22 of 100 (Routine)
Lewisburg	United States	Record high maximum temperature	36.1 C (97.0 F)	22 of 100 (Routine)
S Bend AP	United States	Record daily precipitation	25.4 mm (1.0 in)	22 of 100 (Routine)
Sfax El-Maou	Tunisia	Record high maximum temperature	39.0 C (102.2 F)	21 of 100 (Routine)
Lowell	United States	Record high minimum temperature	22.2 C (72.0 F)	21 of 100 (Routine)
Concord	United States	Record high maximum temperature	31.1 C (88.0 F)	21 of 100 (Routine)
Durham	United States	Record high minimum temperature	21.1 C (70.0 F)	21 of 100 (Routine)
Las Vegas 2 NW	United States	Record daily precipitation	39.4 mm (1.6 in)	21 of 100 (Routine)
Murtho Post Office	Australia	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Mount Wedge	Australia	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Renmark	Australia	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Overland Corner	Australia	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Beachport	Australia	Record daily precipitation	20.1 mm (0.8 in)	20 of 100 (Routine)
Goolwa Council Depot	Australia	Record daily precipitation	22.1 mm (0.9 in)	20 of 100 (Routine)
Dilkara (Florieton)	Australia	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Hillston (Cowl Cowl)	Australia	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)
Lake Charm	Australia	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Donald Post Office	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Leitchville Post Office	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Carrieton (Yackara)	Australia	Record daily precipitation	8.4 mm (0.33 in)	20 of 100 (Routine)
Kergunyah South	Australia	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)

Counts by Type and Timescale

443 records

Records set or tied on 12 September 1925 by type: Highest daily maximum 64, Lowest daily maximum 17, Highest daily minimum 127, Lowest daily minimum 12, Heaviest daily rainfall 223.

Records on 12 September 1925 by type
Record type	Records
Highest daily maximum	64
Lowest daily maximum	17
Highest daily minimum	127
Lowest daily minimum	12
Heaviest daily rainfall	223
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 12 September 1925 by timescale: all-time 1, monthly 14, daily 428.

How Much Records Were Beaten By

375 broken records

Margins by which the 375 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 79.5. Ties are not counted.

Top 20 by Significance

12 September 1925

Top 20 records on 12 September 1925 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 September 1925	Grand Coteau, US	daily rain	105.4 mm (4.1 in)	79.5 mm (3.1 in)	30 years	52 of 100 (Notable)
12 September 1925	Mannum Council Depot, AU	daily rain	32.0 mm (1.3 in)	24.4 mm (1.0 in)	24 years	51 of 100 (Notable)
12 September 1925	Bordertown, AU	daily rain	38.6 mm (1.5 in)	20.8 mm (0.8 in)	24 years	50 of 100 (Notable)
12 September 1925	Tareena, AU	daily rain	26.2 mm (1.0 in)	21.9 mm (0.9 in)	31 years	48 of 100 (Notable)
12 September 1925	Wolseley, AU	daily rain	43.2 mm (1.7 in)	35.3 mm (1.4 in)	15 years	47 of 100 (Notable)
12 September 1925	Milang, AU	daily rain	26.9 mm (1.1 in)	17.8 mm (0.7 in)	8 years	46 of 100 (Notable)
12 September 1925	Murray Bridge Comparison, AU	daily rain	33.3 mm (1.3 in)	20.3 mm (0.8 in)	8 years	44 of 100 (Notable)
12 September 1925	Serviceton, AU	daily rain	33.3 mm (1.3 in)	20.6 mm (0.8 in)	15 years	44 of 100 (Notable)
12 September 1925	Naracoorte, AU	daily rain	34.0 mm (1.3 in)	22.6 mm (0.9 in)	8 years	43 of 100 (Notable)
12 September 1925	Mundulla, AU	daily rain	36.6 mm (1.4 in)	16.8 mm (0.7 in)	24 years	41 of 100 (Notable)
12 September 1925	Naracoorte Cave Range, AU	daily rain	29.2 mm (1.1 in)	17.0 mm (0.7 in)	31 years	41 of 100 (Notable)
12 September 1925	Clinton #1, US	daily rain	70.6 mm (2.8 in)	55.6 mm (2.2 in)	8 years	41 of 100 (Notable)
12 September 1925	Langhorne Creek, AU	daily rain	30.0 mm (1.2 in)	16.3 mm (0.6 in)	8 years	38 of 100 (Notable)
12 September 1925	Murray Bridge (Tepko), AU	daily rain	30.5 mm (1.2 in)	17.3 mm (0.7 in)	8 years	37 of 100 (Notable)
12 September 1925	St Joseph, US	daily rain	86.1 mm (3.4 in)	47.0 mm (1.9 in)	8 years	37 of 100 (Notable)
12 September 1925	Frances, AU	daily rain	25.9 mm (1.0 in)	12.7 mm (0.5 in)	24 years	36 of 100 (Notable)
12 September 1925	Lake Victoria (Cal-Lal), AU	daily rain	26.7 mm (1.1 in)	19.1 mm (0.8 in)	8 years	35 of 100 (Notable)
12 September 1925	Cornwall, US	all-time rain	76.2 mm (3.0 in)	1.3 mm (0.05 in)	32 years	34 of 100 (Routine)
12 September 1925	Callington, AU	daily rain	30.2 mm (1.2 in)	14.5 mm (0.6 in)	8 years	33 of 100 (Routine)
12 September 1925	Vysnij Volocek, RU	monthly rain	33.6 mm (1.3 in)	5.1 mm (0.20 in)	31 years	33 of 100 (Routine)

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 1925

Records set or tied on this calendar date in each year from 1793 to 1925. 1925 had 443 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 1925-09-12: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 10	322
10 to 20	38
20 to 30	11
30 to 40	1
40 to 50	1
50 to 60	1
60 to 70	0
70 to 80	1