Weather Records on 12 September 1946

302 weather records were set or tied worldwide on 12 September 1946. Highest significance: Quanah 2 SW, US.

Key Facts for 12 September 1946

On 12 September 1946, 302 weather records were set or tied at long-record stations worldwide.
82 were record highs and 107 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 298 daily.
Quanah 2 SW set a daily record precipitation of 97.8 mm (3.9 in) on 12 September 1946.
Across 164 earlier years (1793 to 2026) the same calendar date averaged 414 records.

Record Map

302 stations

302 station records on 12 September 1946 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 September 1946: highest significance records shown on the map
Station	Country	Type	Value	Significance
Quanah 2 SW	United States	Record daily precipitation	97.8 mm (3.9 in)	46 of 100 (Notable)
Jhabua	India	Record daily precipitation	72.4 mm (2.9 in)	43 of 100 (Notable)
Bathurst Gaol	Australia	Record high minimum temperature	15.6 C (60.1 F)	39 of 100 (Notable)
Sydney (Observatory Hill)	Australia	Record high minimum temperature	21.9 C (71.4 F)	39 of 100 (Notable)
Tikamgarh	India	Record daily precipitation	98.3 mm (3.9 in)	39 of 100 (Notable)
Paducah 2 WNW	United States	Record daily precipitation	63.5 mm (2.5 in)	37 of 100 (Notable)
Sheopur	India	Record daily precipitation	144.8 mm (5.7 in)	36 of 100 (Notable)
Unchhera	India	Record daily precipitation	78.0 mm (3.1 in)	35 of 100 (Notable)
Kolosib	India	Record daily precipitation	132.3 mm (5.2 in)	35 of 100 (Notable)
Dungarpur	India	Record daily precipitation	175.8 mm (6.9 in)	31 of 100 (Routine)
Thorpdale State School	Australia	Record daily precipitation	38.1 mm (1.5 in)	29 of 100 (Routine)
Hamilton	Canada	Record low maximum temperature	14.4 C (57.9 F)	29 of 100 (Routine)
Gadarwara	India	Record daily precipitation	51.8 mm (2.0 in)	29 of 100 (Routine)
Shujalpur	India	Record daily precipitation	81.3 mm (3.2 in)	29 of 100 (Routine)
Cedaredge	United States	Record high maximum temperature	34.4 C (93.9 F)	29 of 100 (Routine)
Bathurst Gaol	Australia	Record high maximum temperature	26.1 C (79.0 F)	28 of 100 (Routine)
Guna	India	Record daily precipitation	79.5 mm (3.1 in)	28 of 100 (Routine)
Seoni	India	Record daily precipitation	97.8 mm (3.9 in)	27 of 100 (Routine)
Gatesville	United States	Record daily precipitation	65.5 mm (2.6 in)	27 of 100 (Routine)
Sydney (Observatory Hill)	Australia	Record high maximum temperature	31.7 C (89.1 F)	26 of 100 (Routine)
Mazbat(Majbat)	India	Record daily precipitation	65.8 mm (2.6 in)	25 of 100 (Routine)
Banswara	India	Record daily precipitation	67.3 mm (2.6 in)	25 of 100 (Routine)
Forbes (Camp Street)	Australia	Record high minimum temperature	16.2 C (61.2 F)	24 of 100 (Routine)
Quebec	Canada	Record low minimum temperature	2.2 C (36.0 F)	24 of 100 (Routine)
Chachora	India	Record daily precipitation	50.8 mm (2.0 in)	24 of 100 (Routine)
Kaliakheri	India	Record daily precipitation	94.5 mm (3.7 in)	24 of 100 (Routine)
Susner	India	Record daily precipitation	59.7 mm (2.4 in)	24 of 100 (Routine)
Shahpura	India	Record daily precipitation	47.0 mm (1.9 in)	24 of 100 (Routine)
Chillicothe	United States	Record daily precipitation	34.3 mm (1.4 in)	24 of 100 (Routine)
Saint Leo	United States	Record low minimum temperature	18.3 C (64.9 F)	22 of 100 (Routine)
Ishpeming	United States	Record low minimum temperature	-2.8 C (27.0 F)	22 of 100 (Routine)
Tulia 6 NE	United States	Record daily precipitation	39.1 mm (1.5 in)	22 of 100 (Routine)
Sarangarh	India	Record daily precipitation	71.1 mm (2.8 in)	21 of 100 (Routine)
Deoli	India	Record daily precipitation	97.3 mm (3.8 in)	21 of 100 (Routine)
Lalitpur	India	Record daily precipitation	58.9 mm (2.3 in)	21 of 100 (Routine)
Mau	India	Record daily precipitation	53.8 mm (2.1 in)	21 of 100 (Routine)
Paisley	United Kingdom	Record daily precipitation	26.2 mm (1.0 in)	21 of 100 (Routine)
Los Gatos	United States	Record low minimum temperature	5.6 C (42.1 F)	21 of 100 (Routine)
Grand Coteau	United States	Record high minimum temperature	25.0 C (77.0 F)	21 of 100 (Routine)
Novosibirsk	Russia	Record daily precipitation	11.2 mm (0.4 in)	20 of 100 (Routine)
Mundo Novo	Brazil	Record daily precipitation	20.0 mm (0.8 in)	20 of 100 (Routine)
Coleraine Hospital	Australia	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Hamilton	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Kokshetay	Kazakhstan	Record daily precipitation	8.0 mm (0.31 in)	20 of 100 (Routine)
Cheljabinsk-Balandi	Russia	Record daily precipitation	6.8 mm (0.27 in)	20 of 100 (Routine)
Nerchinskij Zavod	Russia	Record daily precipitation	17.4 mm (0.7 in)	20 of 100 (Routine)
Deloraine (Athol)	Australia	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Malin Head	Ireland	Record daily precipitation	21.7 mm (0.9 in)	20 of 100 (Routine)
Vajda-Guba	Russia	Record daily precipitation	8.6 mm (0.34 in)	20 of 100 (Routine)
Strathdownie (Mulga)	Australia	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Carapook (the Gums)	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Wagga Wagga (Kooringal)	Australia	Record high minimum temperature	16.1 C (61.0 F)	20 of 100 (Routine)
Casterton Post Office	Australia	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
Dergholm (Hillgrove)	Australia	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)
Elkhart	United States	Record daily precipitation	31.2 mm (1.2 in)	20 of 100 (Routine)
Mackinaw City 2	United States	Record low maximum temperature	10.6 C (51.1 F)	20 of 100 (Routine)
Newberry-Luce Co Rd Commission	United States	Record low minimum temperature	-1.7 C (28.9 F)	20 of 100 (Routine)
Heath Springs	United States	Record daily precipitation	28.7 mm (1.1 in)	20 of 100 (Routine)
Ft Yukon	United States	Record low maximum temperature	1.1 C (34.0 F)	20 of 100 (Routine)
Heywood Post Office	Australia	Record daily precipitation	14.0 mm (0.6 in)	19 of 100 (Routine)

Counts by Type and Timescale

302 records

Records set or tied on 12 September 1946 by type: Highest daily maximum 29, Lowest daily maximum 47, Highest daily minimum 53, Lowest daily minimum 60, Heaviest daily rainfall 113.

Records on 12 September 1946 by type
Record type	Records
Highest daily maximum	29
Lowest daily maximum	47
Highest daily minimum	53
Lowest daily minimum	60
Heaviest daily rainfall	113
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 12 September 1946 by timescale: all-time 0, monthly 4, daily 298.

How Much Records Were Beaten By

214 broken records

Margins by which the 214 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 59.7. Ties are not counted.

Top 20 by Significance

12 September 1946

Top 20 records on 12 September 1946 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 September 1946	Quanah 2 SW, US	daily rain	97.8 mm (3.9 in)	59.7 mm (2.4 in)	33 years	46 of 100 (Notable)
12 September 1946	Jhabua, IN	daily rain	72.4 mm (2.9 in)	54.1 mm (2.1 in)	41 years	43 of 100 (Notable)
12 September 1946	Bathurst Gaol, AU	daily high min	15.6 C (60.1 F)	4.9 C (8.8 F)	60 years	39 of 100 (Notable)
12 September 1946	Sydney (Observatory Hill), AU	monthly high min	21.9 C (71.4 F)	0.5 C (0.9 F)	69 years	39 of 100 (Notable)
12 September 1946	Tikamgarh, IN	daily rain	98.3 mm (3.9 in)	57.7 mm (2.3 in)	40 years	39 of 100 (Notable)
12 September 1946	Paducah 2 WNW, US	daily rain	63.5 mm (2.5 in)	40.6 mm (1.6 in)	12 years	37 of 100 (Notable)
12 September 1946	Sheopur, IN	monthly rain	144.8 mm (5.7 in)	25.4 mm (1.0 in)	36 years	36 of 100 (Notable)
12 September 1946	Unchhera, IN	daily rain	78.0 mm (3.1 in)	49.0 mm (1.9 in)	12 years	35 of 100 (Notable)
12 September 1946	Kolosib, IN	daily rain	132.3 mm (5.2 in)	48.5 mm (1.9 in)	35 years	35 of 100 (Notable)
12 September 1946	Dungarpur, IN	monthly rain	175.8 mm (6.9 in)	8.9 mm (0.35 in)	44 years	31 of 100 (Routine)
12 September 1946	Thorpdale State School, AU	daily rain	38.1 mm (1.5 in)	18.5 mm (0.7 in)	7 years	29 of 100 (Routine)
12 September 1946	Hamilton, CA	daily low max	14.4 C (57.9 F)	0.6 C (1.1 F)	67 years	29 of 100 (Routine)
12 September 1946	Gadarwara, IN	daily rain	51.8 mm (2.0 in)	38.1 mm (1.5 in)	28 years	29 of 100 (Routine)
12 September 1946	Shujalpur, IN	daily rain	81.3 mm (3.2 in)	30.5 mm (1.2 in)	40 years	29 of 100 (Routine)
12 September 1946	Cedaredge, US	daily high max	34.4 C (93.9 F)	4.4 C (7.9 F)	46 years	29 of 100 (Routine)
12 September 1946	Bathurst Gaol, AU	daily high max	26.1 C (79.0 F)	1.1 C (2.0 F)	60 years	28 of 100 (Routine)
12 September 1946	Guna, IN	daily rain	79.5 mm (3.1 in)	46.5 mm (1.8 in)	20 years	28 of 100 (Routine)
12 September 1946	Seoni, IN	daily rain	97.8 mm (3.9 in)	49.0 mm (1.9 in)	11 years	27 of 100 (Routine)
12 September 1946	Gatesville, US	daily rain	65.5 mm (2.6 in)	45.7 mm (1.8 in)	21 years	27 of 100 (Routine)
12 September 1946	Sydney (Observatory Hill), AU	daily high max	31.7 C (89.1 F)	2.3 C (4.1 F)	43 years	26 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 1946

Records set or tied on this calendar date in each year from 1793 to 1946. 1946 had 302 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 1946-09-12: 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	174
10 to 20	17
20 to 30	8
30 to 40	5
40 to 50	7
50 to 60	3