Weather Records on 15 September 1946

411 weather records were set or tied worldwide on 15 September 1946. Highest significance: Diamond Harbour, IN.

Key Facts for 15 September 1946

On 15 September 1946, 411 weather records were set or tied at long-record stations worldwide.
167 were record highs and 109 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 6 monthly and 404 daily.
Diamond Harbour set a monthly record daily precipitation of 237.5 mm (9.4 in) on 15 September 1946.
Across 170 earlier years (1797 to 2026) the same calendar date averaged 413 records.

Record Map

411 stations

411 station records on 15 September 1946 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 September 1946: highest significance records shown on the map
Station	Country	Type	Value	Significance
Diamond Harbour	India	Record daily precipitation	237.5 mm (9.4 in)	66 of 100 (Major)
Bhadrak	India	Record daily precipitation	289.6 mm (11.4 in)	59 of 100 (Notable)
Laurel	United States	Record daily precipitation	100.3 mm (3.9 in)	54 of 100 (Notable)
Vytegra	Russia	Record daily precipitation	34.4 mm (1.4 in)	53 of 100 (Notable)
Calcutta/Barracks	India	Record daily precipitation	114.3 mm (4.5 in)	52 of 100 (Notable)
Howrah	India	Record daily precipitation	133.4 mm (5.3 in)	49 of 100 (Notable)
Akhuapada	India	Record daily precipitation	117.1 mm (4.6 in)	48 of 100 (Notable)
Basudevpur (Eram)	India	Record daily precipitation	133.9 mm (5.3 in)	45 of 100 (Notable)
Tamluk	India	Record daily precipitation	228.6 mm (9.0 in)	45 of 100 (Notable)
Truro Nsac	Canada	Record daily precipitation	65.8 mm (2.6 in)	44 of 100 (Notable)
Rajkanika	India	Record daily precipitation	241.3 mm (9.5 in)	42 of 100 (Notable)
Keonjhargarh	India	Record daily precipitation	101.6 mm (4.0 in)	41 of 100 (Notable)
Corvallis State UNIV	United States	Record daily precipitation	35.1 mm (1.4 in)	39 of 100 (Notable)
Soro	India	Record daily precipitation	124.0 mm (4.9 in)	38 of 100 (Notable)
Bhagwanpur	India	Record daily precipitation	62.5 mm (2.5 in)	37 of 100 (Notable)
Bandon 2 NNE	United States	Record daily precipitation	30.2 mm (1.2 in)	36 of 100 (Notable)
Gohad	India	Record daily precipitation	114.3 mm (4.5 in)	35 of 100 (Notable)
Aul	India	Record daily precipitation	92.7 mm (3.6 in)	33 of 100 (Routine)
Port Dover	Canada	Record low minimum temperature	-2.2 C (28.0 F)	31 of 100 (Routine)
Russell	Canada	Record high maximum temperature	32.2 C (90.0 F)	30 of 100 (Routine)
Tallapoosa 2 N	United States	Record low maximum temperature	21.1 C (70.0 F)	30 of 100 (Routine)
Uniontown	United States	Record daily precipitation	39.1 mm (1.5 in)	29 of 100 (Routine)
Neemuch	India	Record daily precipitation	63.5 mm (2.5 in)	28 of 100 (Routine)
Gadsden	United States	Record low maximum temperature	21.1 C (70.0 F)	28 of 100 (Routine)
Dauphin	Canada	Record high maximum temperature	31.7 C (89.1 F)	27 of 100 (Routine)
Pachet(Kharai)	India	Record daily precipitation	58.4 mm (2.3 in)	27 of 100 (Routine)
Montgomery Wb City	United States	Record low maximum temperature	20.6 C (69.1 F)	27 of 100 (Routine)
N Bend SW Oregon Rgnl AP	United States	Record daily precipitation	28.2 mm (1.1 in)	27 of 100 (Routine)
Alice Springs Post Office	Australia	Record high maximum temperature	35.6 C (96.1 F)	26 of 100 (Routine)
Melfort	Canada	Record high maximum temperature	33.3 C (91.9 F)	26 of 100 (Routine)
Pakribarwan	India	Record daily precipitation	32.5 mm (1.3 in)	26 of 100 (Routine)
Kesiary Kaltikri	India	Record daily precipitation	209.6 mm (8.3 in)	26 of 100 (Routine)
Prattville	United States	Record daily precipitation	69.9 mm (2.8 in)	26 of 100 (Routine)
Grants Pass	United States	Record low maximum temperature	13.9 C (57.0 F)	26 of 100 (Routine)
American Falls 6 NE	United States	Record high minimum temperature	15.6 C (60.1 F)	25 of 100 (Routine)
Weldon	United States	Record low minimum temperature	8.3 C (46.9 F)	25 of 100 (Routine)
Cedar Key 1 WSW	United States	Record low maximum temperature	23.9 C (75.0 F)	24 of 100 (Routine)
Norris Madison Pwr House	United States	Record high minimum temperature	17.2 C (63.0 F)	24 of 100 (Routine)
Hallettsville 2 N	United States	Record daily precipitation	39.4 mm (1.6 in)	24 of 100 (Routine)
Grenfell	Canada	Record high minimum temperature	15.6 C (60.1 F)	23 of 100 (Routine)
Kamsack	Canada	Record high maximum temperature	33.3 C (91.9 F)	23 of 100 (Routine)
Dhanbad Sr	India	Record daily precipitation	48.5 mm (1.9 in)	23 of 100 (Routine)
Katbari	India	Record daily precipitation	106.9 mm (4.2 in)	23 of 100 (Routine)
Jaipur	India	Record daily precipitation	127.8 mm (5.0 in)	23 of 100 (Routine)
Meeker	United States	Record high minimum temperature	12.2 C (54.0 F)	23 of 100 (Routine)
New Braunfels	United States	Record low maximum temperature	23.9 C (75.0 F)	23 of 100 (Routine)
Humboldt	Canada	Record high maximum temperature	30.0 C (86.0 F)	22 of 100 (Routine)
Qu'appelle	Canada	Record high minimum temperature	15.6 C (60.1 F)	22 of 100 (Routine)
Jagnathpur	India	Record daily precipitation	56.4 mm (2.2 in)	22 of 100 (Routine)
Nimach	India	Record daily precipitation	65.3 mm (2.6 in)	22 of 100 (Routine)
Barguzin	Russia	Record low minimum temperature	-5.1 C (22.8 F)	22 of 100 (Routine)
Rifle	United States	Record high minimum temperature	13.9 C (57.0 F)	22 of 100 (Routine)
Frederick Police Brks	United States	Record low minimum temperature	1.1 C (34.0 F)	22 of 100 (Routine)
Rosedale	United States	Record daily precipitation	64.0 mm (2.5 in)	22 of 100 (Routine)
Bozeman Montana State UNIV	United States	Record high minimum temperature	13.9 C (57.0 F)	22 of 100 (Routine)
Bridger 2 N	United States	Record high minimum temperature	14.4 C (57.9 F)	22 of 100 (Routine)
Berens River	Canada	Record high minimum temperature	15.6 C (60.1 F)	21 of 100 (Routine)
Glenwood Spgs #2	United States	Record high minimum temperature	12.2 C (54.0 F)	21 of 100 (Routine)
Spicer	United States	Record high minimum temperature	8.3 C (46.9 F)	21 of 100 (Routine)
Columbus Dardc	United States	Record low maximum temperature	20.6 C (69.1 F)	21 of 100 (Routine)

Counts by Type and Timescale

411 records

Records set or tied on 15 September 1946 by type: Highest daily maximum 75, Lowest daily maximum 61, Highest daily minimum 92, Lowest daily minimum 48, Heaviest daily rainfall 135.

Records on 15 September 1946 by type
Record type	Records
Highest daily maximum	75
Lowest daily maximum	61
Highest daily minimum	92
Lowest daily minimum	48
Heaviest daily rainfall	135
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 15 September 1946 by timescale: all-time 1, monthly 6, daily 404.

How Much Records Were Beaten By

332 broken records

Margins by which the 332 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 137.7. Ties are not counted.

Top 20 by Significance

15 September 1946

Top 20 records on 15 September 1946 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 September 1946	Diamond Harbour, IN	monthly rain	237.5 mm (9.4 in)	89.4 mm (3.5 in)	43 years	66 of 100 (Major)
15 September 1946	Bhadrak, IN	monthly rain	289.6 mm (11.4 in)	137.7 mm (5.4 in)	19 years	59 of 100 (Notable)
15 September 1946	Laurel, US	daily rain	100.3 mm (3.9 in)	76.9 mm (3.0 in)	32 years	54 of 100 (Notable)
15 September 1946	Vytegra, RU	daily rain	34.4 mm (1.4 in)	16.4 mm (0.6 in)	59 years	53 of 100 (Notable)
15 September 1946	Calcutta/Barracks, IN	daily rain	114.3 mm (4.5 in)	88.9 mm (3.5 in)	28 years	52 of 100 (Notable)
15 September 1946	Howrah, IN	daily rain	133.4 mm (5.3 in)	79.6 mm (3.1 in)	16 years	49 of 100 (Notable)
15 September 1946	Akhuapada, IN	daily rain	117.1 mm (4.6 in)	90.7 mm (3.6 in)	16 years	48 of 100 (Notable)
15 September 1946	Basudevpur (Eram), IN	daily rain	133.9 mm (5.3 in)	70.4 mm (2.8 in)	25 years	45 of 100 (Notable)
15 September 1946	Tamluk, IN	monthly rain	228.6 mm (9.0 in)	43.7 mm (1.7 in)	39 years	45 of 100 (Notable)
15 September 1946	Truro Nsac, CA	daily rain	65.8 mm (2.6 in)	55.6 mm (2.2 in)	4 years	44 of 100 (Notable)
15 September 1946	Rajkanika, IN	monthly rain	241.3 mm (9.5 in)	61.0 mm (2.4 in)	0 years	42 of 100 (Notable)
15 September 1946	Keonjhargarh, IN	daily rain	101.6 mm (4.0 in)	46.2 mm (1.8 in)	32 years	41 of 100 (Notable)
15 September 1946	Corvallis State UNIV, US	daily rain	35.1 mm (1.4 in)	18.3 mm (0.7 in)	32 years	39 of 100 (Notable)
15 September 1946	Soro, IN	daily rain	124.0 mm (4.9 in)	64.3 mm (2.5 in)	32 years	38 of 100 (Notable)
15 September 1946	Bhagwanpur, IN	daily rain	62.5 mm (2.5 in)	43.7 mm (1.7 in)	39 years	37 of 100 (Notable)
15 September 1946	Bandon 2 NNE, US	daily rain	30.2 mm (1.2 in)	17.8 mm (0.7 in)	39 years	36 of 100 (Notable)
15 September 1946	Gohad, IN	daily rain	114.3 mm (4.5 in)	78.7 mm (3.1 in)	7 years	35 of 100 (Notable)
15 September 1946	Aul, IN	daily rain	92.7 mm (3.6 in)	41.9 mm (1.6 in)	32 years	33 of 100 (Routine)
15 September 1946	Port Dover, CA	daily low min	-2.2 C (28.0 F)	5.0 C (9.0 F)	46 years	31 of 100 (Routine)
15 September 1946	Russell, CA	daily high max	32.2 C (90.0 F)	5.5 C (9.9 F)	54 years	30 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

1797 to 1946

Records set or tied on this calendar date in each year from 1797 to 1946. 1946 had 411 records.

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

Records on 09-15 in each year
Year	Records
1797	1
1803	1
1806	2
1810	1
1816	1
1818	1
1823	2
1833	1
1836	1
1837	2
1839	1
1841	1
1848	1
1850	1
1851	1
1854	2
1856	1
1857	1
1859	1
1864	1
1865	2
1866	1
1867	2
1868	1
1869	1
1872	1
1873	2
1876	2
1877	2
1880	1
1881	1
1882	6
1884	3
1885	4
1886	2
1887	3
1888	1
1889	5
1890	1
1894	4
1895	1
1897	1
1898	3
1899	3
1900	1
1901	12
1902	7
1903	31
1904	30
1905	16
1906	6
1907	7
1908	16
1909	16
1910	2
1911	40
1912	64
1913	43
1914	18
1915	94
1916	44
1917	50
1918	50
1919	52
1920	164
1921	122
1922	53
1923	193
1924	103
1925	112
1926	134
1927	539
1928	86
1929	99
1930	235
1931	422
1932	295
1933	322
1934	351
1935	463
1936	460
1937	337
1938	247
1939	1,098
1940	181
1941	276
1942	278
1943	360
1944	396
1945	418
1946	411
1947	621
1948	557
1949	523
1950	750
1951	283
1952	455
1953	400
1954	518
1955	532
1956	646
1957	449
1958	294
1959	844
1960	410
1961	586
1962	557
1963	455
1964	839
1965	614
1966	534
1967	578
1968	429
1969	362
1970	1,157
1971	598
1972	356
1973	774
1974	386
1975	739
1976	667
1977	400
1978	628
1979	1,022
1980	563
1981	613
1982	1,315
1983	756
1984	766
1985	764
1986	928
1987	719
1988	818
1989	955
1990	911
1991	1,165
1992	919
1993	2,227
1994	1,363
1995	723
1996	1,212
1997	1,177
1998	1,768
1999	858
2000	1,175
2001	837
2002	1,212
2003	855
2004	893
2005	1,123
2006	1,042
2007	946
2008	1,153
2009	773
2010	913
2011	1,170
2012	568
2013	854
2014	443
2015	997
2016	988
2017	825
2018	874
2019	538
2020	785
2021	467
2022	392
2023	507
2024	681
2025	503
2026	779

Download the Data

Data for records on 1946-09-15: 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 20	309
20 to 40	8
40 to 60	5
60 to 80	6
80 to 100	3
100 to 120	0
120 to 140	1