Weather Records on 11 September 1966

392 weather records were set or tied worldwide on 11 September 1966. Highest significance: Centerville 6 SE, US.

Key Facts for 11 September 1966

On 11 September 1966, 392 weather records were set or tied at long-record stations worldwide.
151 were record highs and 133 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 388 daily.
Centerville 6 SE set a daily record precipitation of 86.9 mm (3.4 in) on 11 September 1966.
Across 164 earlier years (1809 to 2026) the same calendar date averaged 424 records.

Record Map

392 stations

392 station records on 11 September 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 September 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Centerville 6 SE	United States	Record daily precipitation	86.9 mm (3.4 in)	55 of 100 (Notable)
Piacabucu	Brazil	Record daily precipitation	45.0 mm (1.8 in)	47 of 100 (Notable)
Vedaranayam	India	Record daily precipitation	100.4 mm (4.0 in)	46 of 100 (Notable)
Sulphur Springs	United States	Record low maximum temperature	19.4 C (66.9 F)	46 of 100 (Notable)
Holmogadd A	Sweden	Record daily precipitation	35.0 mm (1.4 in)	45 of 100 (Notable)
Vladikavkaz	Russia	Record daily precipitation	32.0 mm (1.3 in)	42 of 100 (Notable)
Sioux Falls	United States	Record daily precipitation	102.1 mm (4.0 in)	39 of 100 (Notable)
Arhangelsk	Russia	Record low minimum temperature	-3.1 C (26.4 F)	36 of 100 (Notable)
Plain Dealing	United States	Record low maximum temperature	20.0 C (68.0 F)	36 of 100 (Notable)
Dialville 2 W	United States	Record low maximum temperature	21.1 C (70.0 F)	35 of 100 (Notable)
Surgut	Russia	Record high minimum temperature	15.4 C (59.7 F)	34 of 100 (Routine)
Pitea	Sweden	Record low minimum temperature	-2.9 C (26.8 F)	34 of 100 (Routine)
Natchitoches	United States	Record low maximum temperature	23.9 C (75.0 F)	34 of 100 (Routine)
Bowie	United States	Record low maximum temperature	20.6 C (69.1 F)	34 of 100 (Routine)
Innsbruck	Austria	Record high minimum temperature	16.4 C (61.5 F)	33 of 100 (Routine)
Pacatuba (Pacatiba)	Brazil	Record daily precipitation	32.6 mm (1.3 in)	33 of 100 (Routine)
Col du Grand St-Bernard	Switzerland	Record high maximum temperature	16.0 C (60.8 F)	33 of 100 (Routine)
Manati 2 E	Puerto Rico [United States]	Record high minimum temperature	25.0 C (77.0 F)	32 of 100 (Routine)
Kurgan	Russia	Record high minimum temperature	16.6 C (61.9 F)	31 of 100 (Routine)
Col du Grand St-Bernard	Switzerland	Record high minimum temperature	9.6 C (49.3 F)	31 of 100 (Routine)
Subiaco	United States	Record low maximum temperature	20.0 C (68.0 F)	31 of 100 (Routine)
Sonnblick	Austria	Record high maximum temperature	8.2 C (46.8 F)	30 of 100 (Routine)
Jokkmokk	Sweden	Record low minimum temperature	-5.0 C (23.0 F)	30 of 100 (Routine)
Pipestone	United States	Record daily precipitation	40.1 mm (1.6 in)	30 of 100 (Routine)
Longview	United States	Record low maximum temperature	20.0 C (68.0 F)	30 of 100 (Routine)
Sao Miguel Dos Campos	Brazil	Record daily precipitation	29.2 mm (1.1 in)	29 of 100 (Routine)
Mena	United States	Record low maximum temperature	20.6 C (69.1 F)	29 of 100 (Routine)
Jefferson	United States	Record daily precipitation	50.8 mm (2.0 in)	29 of 100 (Routine)
Citronelle	United States	Record daily precipitation	31.8 mm (1.3 in)	28 of 100 (Routine)
Mt Ida 3 SE	United States	Record low maximum temperature	21.1 C (70.0 F)	28 of 100 (Routine)
Ruston la Tech	United States	Record low maximum temperature	22.2 C (72.0 F)	28 of 100 (Routine)
Miles City	United States	Record high minimum temperature	19.4 C (66.9 F)	28 of 100 (Routine)
Vicosa	Brazil	Record daily precipitation	30.3 mm (1.2 in)	27 of 100 (Routine)
Coruripe	Brazil	Record daily precipitation	33.4 mm (1.3 in)	27 of 100 (Routine)
Nikolskoye/Beringa Ostrov	Russia	Record high maximum temperature	14.2 C (57.6 F)	27 of 100 (Routine)
Williston Sloulin Fld	United States	Record high minimum temperature	19.4 C (66.9 F)	27 of 100 (Routine)
Belle Isle	Canada	Record daily precipitation	49.5 mm (1.9 in)	26 of 100 (Routine)
Hailey 3 NNW	United States	Record high minimum temperature	12.8 C (55.0 F)	26 of 100 (Routine)
Isla Perez	Mexico	Record high maximum temperature	38.3 C (100.9 F)	25 of 100 (Routine)
Haparanda	Sweden	Record low minimum temperature	-3.1 C (26.4 F)	25 of 100 (Routine)
Lugano	Switzerland	Record high minimum temperature	17.5 C (63.5 F)	25 of 100 (Routine)
Waldron	United States	Record low maximum temperature	20.6 C (69.1 F)	25 of 100 (Routine)
Springview 2NW	United States	Record high minimum temperature	18.3 C (64.9 F)	25 of 100 (Routine)
Lordsburg 4 SE	United States	Record daily precipitation	29.7 mm (1.2 in)	25 of 100 (Routine)
Mt Pleasant	United States	Record low maximum temperature	18.9 C (66.0 F)	25 of 100 (Routine)
Sherman	United States	Record low maximum temperature	20.6 C (69.1 F)	25 of 100 (Routine)
Moorcroft 3S	United States	Record high minimum temperature	14.4 C (57.9 F)	25 of 100 (Routine)
Kursk	Russia	Record low minimum temperature	0.5 C (32.9 F)	24 of 100 (Routine)
Saentis	Switzerland	Record high maximum temperature	15.0 C (59.0 F)	24 of 100 (Routine)
Marshall	United States	Record low maximum temperature	20.6 C (69.1 F)	24 of 100 (Routine)
Paris	United States	Record low maximum temperature	20.0 C (68.0 F)	24 of 100 (Routine)
Chaplin	Canada	Record high maximum temperature	31.1 C (88.0 F)	23 of 100 (Routine)
Chauradano	India	Record daily precipitation	67.0 mm (2.6 in)	23 of 100 (Routine)
Pogranichnyj	Russia	Record low minimum temperature	4.3 C (39.7 F)	23 of 100 (Routine)
Tarnaby	Sweden	Record low minimum temperature	-5.0 C (23.0 F)	23 of 100 (Routine)
Rock Rapids	United States	Record daily precipitation	43.2 mm (1.7 in)	23 of 100 (Routine)
Jordan	United States	Record high minimum temperature	15.0 C (59.0 F)	23 of 100 (Routine)
Ada	United States	Record low maximum temperature	21.7 C (71.1 F)	23 of 100 (Routine)
Marshall	United States	Record daily precipitation	49.0 mm (1.9 in)	23 of 100 (Routine)
McKinney Muni AP	United States	Record low maximum temperature	22.2 C (72.0 F)	23 of 100 (Routine)

Counts by Type and Timescale

392 records

Records set or tied on 11 September 1966 by type: Highest daily maximum 79, Lowest daily maximum 105, Highest daily minimum 72, Lowest daily minimum 28, Heaviest daily rainfall 108.

Records on 11 September 1966 by type
Record type	Records
Highest daily maximum	79
Lowest daily maximum	105
Highest daily minimum	72
Lowest daily minimum	28
Heaviest daily rainfall	108
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 11 September 1966 by timescale: all-time 0, monthly 4, daily 388.

How Much Records Were Beaten By

316 broken records

Margins by which the 316 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 60.5. Ties are not counted.

Top 20 by Significance

11 September 1966

Top 20 records on 11 September 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 September 1966	Centerville 6 SE, US	daily rain	86.9 mm (3.4 in)	59.0 mm (2.3 in)	28 years	55 of 100 (Notable)
11 September 1966	Piacabucu, BR	daily rain	45.0 mm (1.8 in)	38.0 mm (1.5 in)	15 years	47 of 100 (Notable)
11 September 1966	Vedaranayam, IN	daily rain	100.4 mm (4.0 in)	60.5 mm (2.4 in)	21 years	46 of 100 (Notable)
11 September 1966	Sulphur Springs, US	daily low max	19.4 C (66.9 F)	9.5 C (17.1 F)	59 years	46 of 100 (Notable)
11 September 1966	Holmogadd A, SE	daily rain	35.0 mm (1.4 in)	12.9 mm (0.5 in)	60 years	45 of 100 (Notable)
11 September 1966	Vladikavkaz, RU	daily rain	32.0 mm (1.3 in)	9.7 mm (0.38 in)	83 years	42 of 100 (Notable)
11 September 1966	Sioux Falls, US	monthly rain	102.1 mm (4.0 in)	28.2 mm (1.1 in)	15 years	39 of 100 (Notable)
11 September 1966	Arhangelsk, RU	daily low min	-3.1 C (26.4 F)	2.6 C (4.7 F)	71 years	36 of 100 (Notable)
11 September 1966	Plain Dealing, US	daily low max	20.0 C (68.0 F)	3.3 C (5.9 F)	71 years	36 of 100 (Notable)
11 September 1966	Dialville 2 W, US	daily low max	21.1 C (70.0 F)	3.3 C (5.9 F)	67 years	35 of 100 (Notable)
11 September 1966	Surgut, RU	monthly high min	15.4 C (59.7 F)	0.3 C (0.5 F)	57 years	34 of 100 (Routine)
11 September 1966	Pitea, SE	daily low min	-2.9 C (26.8 F)	1.9 C (3.4 F)	70 years	34 of 100 (Routine)
11 September 1966	Natchitoches, US	daily low max	23.9 C (75.0 F)	2.2 C (4.0 F)	71 years	34 of 100 (Routine)
11 September 1966	Bowie, US	daily low max	20.6 C (69.1 F)	3.3 C (5.9 F)	67 years	34 of 100 (Routine)
11 September 1966	Innsbruck, AT	daily high min	16.4 C (61.5 F)	0.4 C (0.7 F)	79 years	33 of 100 (Routine)
11 September 1966	Pacatuba (Pacatiba), BR	daily rain	32.6 mm (1.3 in)	17.9 mm (0.7 in)	8 years	33 of 100 (Routine)
11 September 1966	Col du Grand St-Bernard, CH	daily high max	16.0 C (60.8 F)	1.3 C (2.3 F)	67 years	33 of 100 (Routine)
11 September 1966	Manati 2 E, PR	daily high min	25.0 C (77.0 F)	1.1 C (2.0 F)	52 years	32 of 100 (Routine)
11 September 1966	Kurgan, RU	monthly high min	16.6 C (61.9 F)	0.2 C (0.4 F)	48 years	31 of 100 (Routine)
11 September 1966	Col du Grand St-Bernard, CH	daily high min	9.6 C (49.3 F)	0.6 C (1.1 F)	67 years	31 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

1809 to 1966

Records set or tied on this calendar date in each year from 1809 to 1966. 1966 had 392 records.

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

Records on 09-11 in each year
Year	Records
1809	1
1814	3
1818	1
1830	1
1836	1
1838	3
1839	1
1848	1
1850	1
1851	1
1854	2
1858	1
1860	2
1861	1
1863	2
1865	3
1866	1
1874	2
1876	1
1877	1
1879	1
1880	1
1882	4
1883	2
1884	1
1886	1
1888	2
1889	4
1890	2
1891	2
1892	1
1893	4
1894	2
1895	4
1896	1
1897	3
1898	3
1899	5
1900	1
1901	3
1902	15
1903	13
1904	4
1905	5
1906	10
1907	9
1908	20
1909	12
1910	19
1911	9
1912	25
1913	22
1914	52
1915	160
1916	17
1917	88
1918	62
1919	52
1920	158
1921	52
1922	78
1923	44
1924	290
1925	260
1926	137
1927	300
1928	127
1929	206
1930	136
1931	868
1932	210
1933	276
1934	144
1935	410
1936	567
1937	324
1938	288
1939	561
1940	891
1941	210
1942	234
1943	335
1944	446
1945	341
1946	262
1947	611
1948	424
1949	450
1950	462
1951	247
1952	549
1953	392
1954	363
1955	479
1956	539
1957	470
1958	748
1959	488
1960	423
1961	524
1962	480
1963	359
1964	1,195
1965	414
1966	392
1967	478
1968	835
1969	685
1970	474
1971	464
1972	507
1973	612
1974	430
1975	644
1976	920
1977	406
1978	911
1979	596
1980	474
1981	347
1982	862
1983	1,243
1984	888
1985	844
1986	1,221
1987	595
1988	1,019
1989	1,301
1990	840
1991	843
1992	672
1993	809
1994	713
1995	619
1996	1,030
1997	808
1998	1,821
1999	1,073
2000	1,469
2001	826
2002	1,059
2003	1,022
2004	740
2005	1,163
2006	1,132
2007	947
2008	916
2009	774
2010	965
2011	1,051
2012	687
2013	1,207
2014	1,100
2015	683
2016	677
2017	916
2018	763
2019	806
2020	1,235
2021	851
2022	617
2023	1,034
2024	889
2025	917
2026	615

Download the Data

Data for records on 1966-09-11: 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 10	287
10 to 20	20
20 to 30	6
30 to 40	1
40 to 50	0
50 to 60	1
60 to 70	1