Weather Records on 12 September 1963

466 weather records were set or tied worldwide on 12 September 1963. Highest significance: Sambalpur, IN.

Key Facts for 12 September 1963

On 12 September 1963, 466 weather records were set or tied at long-record stations worldwide.
160 were record highs and 63 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 12 monthly and 454 daily.
Sambalpur set a daily record precipitation of 156.4 mm (6.2 in) on 12 September 1963.
Across 164 earlier years (1793 to 2026) the same calendar date averaged 413 records.

Record Map

466 stations

466 station records on 12 September 1963 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 September 1963: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sambalpur	India	Record daily precipitation	156.4 mm (6.2 in)	51 of 100 (Notable)
Barcelona/Aeropuerto	Spain	Record daily precipitation	90.0 mm (3.5 in)	47 of 100 (Notable)
Kemptville	Canada	Record daily precipitation	61.5 mm (2.4 in)	45 of 100 (Notable)
Jeffersonville	United States	Record daily precipitation	54.1 mm (2.1 in)	45 of 100 (Notable)
Ottawa Cda	Canada	Record daily precipitation	54.9 mm (2.2 in)	44 of 100 (Notable)
Macdonald College	Canada	Record daily precipitation	65.5 mm (2.6 in)	43 of 100 (Notable)
Sorel	Canada	Record daily precipitation	59.2 mm (2.3 in)	42 of 100 (Notable)
Les Cedres	Canada	Record daily precipitation	63.5 mm (2.5 in)	41 of 100 (Notable)
Alma	United States	Record daily precipitation	48.3 mm (1.9 in)	41 of 100 (Notable)
Dalhousie L High Falls	Canada	Record daily precipitation	52.8 mm (2.1 in)	38 of 100 (Notable)
Montreal McGill	Canada	Record daily precipitation	80.5 mm (3.2 in)	38 of 100 (Notable)
Farrell Sharon	United States	Record daily precipitation	32.5 mm (1.3 in)	38 of 100 (Notable)
Kottayam P.W.D	India	Record daily precipitation	101.6 mm (4.0 in)	37 of 100 (Notable)
Fort Vermilion Cda	Canada	Record daily precipitation	30.5 mm (1.2 in)	36 of 100 (Notable)
Huntingdon	Canada	Record daily precipitation	47.2 mm (1.9 in)	36 of 100 (Notable)
Tadoussac	Canada	Record daily precipitation	33.5 mm (1.3 in)	36 of 100 (Notable)
Sohagpur	India	Record daily precipitation	83.1 mm (3.3 in)	36 of 100 (Notable)
Gumeracha	Australia	Record daily precipitation	40.9 mm (1.6 in)	35 of 100 (Notable)
St Lin des Laurentides	Canada	Record daily precipitation	55.9 mm (2.2 in)	35 of 100 (Notable)
St Jerome	Canada	Record daily precipitation	53.8 mm (2.1 in)	35 of 100 (Notable)
Brockville	Canada	Record daily precipitation	36.6 mm (1.4 in)	34 of 100 (Routine)
Kotarh	India	Record daily precipitation	83.8 mm (3.3 in)	34 of 100 (Routine)
Arcade	United States	Record daily precipitation	26.9 mm (1.1 in)	34 of 100 (Routine)
Warren	United States	Record daily precipitation	28.4 mm (1.1 in)	34 of 100 (Routine)
Woodside	Australia	Record daily precipitation	49.3 mm (1.9 in)	33 of 100 (Routine)
Nicolet	Canada	Record daily precipitation	64.8 mm (2.6 in)	33 of 100 (Routine)
Rajnandgaon	India	Record daily precipitation	162.6 mm (6.4 in)	33 of 100 (Routine)
Morrisburg	Canada	Record daily precipitation	52.8 mm (2.1 in)	32 of 100 (Routine)
Tweed	Canada	Record daily precipitation	48.5 mm (1.9 in)	32 of 100 (Routine)
Montebello Seigniory	Canada	Record daily precipitation	53.1 mm (2.1 in)	32 of 100 (Routine)
Hampshire (Neena Road)	Australia	Record daily precipitation	30.5 mm (1.2 in)	31 of 100 (Routine)
Berthierville	Canada	Record daily precipitation	65.5 mm (2.6 in)	31 of 100 (Routine)
Thetford Mines	Canada	Record daily precipitation	90.4 mm (3.6 in)	31 of 100 (Routine)
Causapscal	Canada	Record daily snowfall	6.4 cm (2.5 in)	31 of 100 (Routine)
Huberdeau	Canada	Record daily precipitation	33.8 mm (1.3 in)	30 of 100 (Routine)
Hanty-Mansijsk	Russia	Record low minimum temperature	-2.1 C (28.2 F)	30 of 100 (Routine)
Greenville 2 NNE	United States	Record daily precipitation	50.8 mm (2.0 in)	30 of 100 (Routine)
Bella Coola	Canada	Record high minimum temperature	14.4 C (57.9 F)	29 of 100 (Routine)
Mohpani	India	Record daily precipitation	100.0 mm (3.9 in)	29 of 100 (Routine)
Girona (Antic Institut)	Spain	Record low maximum temperature	17.5 C (63.5 F)	29 of 100 (Routine)
Marengo	United States	Record daily precipitation	41.7 mm (1.6 in)	29 of 100 (Routine)
Jackson	United States	Record daily precipitation	108.0 mm (4.3 in)	29 of 100 (Routine)
L'Assomption	Canada	Record daily precipitation	65.0 mm (2.6 in)	28 of 100 (Routine)
Bell Falls	Canada	Record daily precipitation	54.4 mm (2.1 in)	28 of 100 (Routine)
Perkins	Canada	Record daily precipitation	32.3 mm (1.3 in)	28 of 100 (Routine)
Turgaj	Kazakhstan	Record low maximum temperature	10.0 C (50.0 F)	28 of 100 (Routine)
Parker	United States	Record high minimum temperature	28.3 C (82.9 F)	28 of 100 (Routine)
Tucson WFO	United States	Record high maximum temperature	40.6 C (105.1 F)	28 of 100 (Routine)
Greeneville Exp STN	United States	Record high minimum temperature	20.0 C (68.0 F)	28 of 100 (Routine)
Stockwell	Australia	Record daily precipitation	26.4 mm (1.0 in)	27 of 100 (Routine)
Woods Point	Australia	Record daily precipitation	25.9 mm (1.0 in)	27 of 100 (Routine)
Joliette	Canada	Record daily precipitation	52.6 mm (2.1 in)	27 of 100 (Routine)
Fort Cochin	India	Record daily precipitation	75.5 mm (3.0 in)	27 of 100 (Routine)
Thiruvananthapuram	India	Record daily precipitation	36.2 mm (1.4 in)	27 of 100 (Routine)
Santander Centro	Spain	Record daily precipitation	25.7 mm (1.0 in)	27 of 100 (Routine)
Willow Sprg Radio Kuku	United States	Record high minimum temperature	20.0 C (68.0 F)	27 of 100 (Routine)
Hendersonville 1 NE	United States	Record daily precipitation	43.9 mm (1.7 in)	27 of 100 (Routine)
St Laurent (College)	Canada	Record daily precipitation	61.7 mm (2.4 in)	26 of 100 (Routine)
Villaflores (Smn)	Mexico	Record low maximum temperature	25.0 C (77.0 F)	26 of 100 (Routine)
Saint Johns	United States	Record daily precipitation	39.1 mm (1.5 in)	26 of 100 (Routine)

Counts by Type and Timescale

466 records

Records set or tied on 12 September 1963 by type: Highest daily maximum 68, Lowest daily maximum 39, Highest daily minimum 92, Lowest daily minimum 24, Heaviest daily rainfall 242, Heaviest daily snowfall 1.

Records on 12 September 1963 by type
Record type	Records
Highest daily maximum	68
Lowest daily maximum	39
Highest daily minimum	92
Lowest daily minimum	24
Heaviest daily rainfall	242
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 12 September 1963 by timescale: all-time 0, monthly 12, daily 454.

How Much Records Were Beaten By

374 broken records

Margins by which the 374 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 91.9. Ties are not counted.

Top 20 by Significance

12 September 1963

Top 20 records on 12 September 1963 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 September 1963	Sambalpur, IN	daily rain	156.4 mm (6.2 in)	91.9 mm (3.6 in)	24 years	51 of 100 (Notable)
12 September 1963	Barcelona/Aeropuerto, ES	daily rain	90.0 mm (3.5 in)	80.0 mm (3.1 in)	28 years	47 of 100 (Notable)
12 September 1963	Kemptville, CA	daily rain	61.5 mm (2.4 in)	39.9 mm (1.6 in)	9 years	45 of 100 (Notable)
12 September 1963	Jeffersonville, US	daily rain	54.1 mm (2.1 in)	20.8 mm (0.8 in)	61 years	45 of 100 (Notable)
12 September 1963	Ottawa Cda, CA	daily rain	54.9 mm (2.2 in)	25.7 mm (1.0 in)	28 years	44 of 100 (Notable)
12 September 1963	Macdonald College, CA	daily rain	65.5 mm (2.6 in)	26.6 mm (1.0 in)	34 years	43 of 100 (Notable)
12 September 1963	Sorel, CA	daily rain	59.2 mm (2.3 in)	26.7 mm (1.1 in)	41 years	42 of 100 (Notable)
12 September 1963	Les Cedres, CA	daily rain	63.5 mm (2.5 in)	25.4 mm (1.0 in)	34 years	41 of 100 (Notable)
12 September 1963	Alma, US	daily rain	48.3 mm (1.9 in)	16.3 mm (0.6 in)	66 years	41 of 100 (Notable)
12 September 1963	Dalhousie L High Falls, CA	daily rain	52.8 mm (2.1 in)	24.1 mm (0.9 in)	28 years	38 of 100 (Notable)
12 September 1963	Montreal McGill, CA	monthly rain	80.5 mm (3.2 in)	8.1 mm (0.32 in)	38 years	38 of 100 (Notable)
12 September 1963	Farrell Sharon, US	daily rain	32.5 mm (1.3 in)	19.3 mm (0.8 in)	40 years	38 of 100 (Notable)
12 September 1963	Kottayam P.W.D, IN	daily rain	101.6 mm (4.0 in)	29.7 mm (1.2 in)	60 years	37 of 100 (Notable)
12 September 1963	Fort Vermilion Cda, CA	monthly rain	30.5 mm (1.2 in)	3.3 mm (0.13 in)	50 years	36 of 100 (Notable)
12 September 1963	Huntingdon, CA	daily rain	47.2 mm (1.9 in)	25.6 mm (1.0 in)	2 years	36 of 100 (Notable)
12 September 1963	Tadoussac, CA	daily rain	33.5 mm (1.3 in)	20.8 mm (0.8 in)	34 years	36 of 100 (Notable)
12 September 1963	Sohagpur, IN	daily rain	83.1 mm (3.3 in)	33.6 mm (1.3 in)	57 years	36 of 100 (Notable)
12 September 1963	Gumeracha, AU	daily rain	40.9 mm (1.6 in)	10.4 mm (0.4 in)	45 years	35 of 100 (Notable)
12 September 1963	St Lin des Laurentides, CA	daily rain	55.9 mm (2.2 in)	21.1 mm (0.8 in)	41 years	35 of 100 (Notable)
12 September 1963	St Jerome, CA	daily rain	53.8 mm (2.1 in)	34.2 mm (1.3 in)	2 years	35 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 1963

Records set or tied on this calendar date in each year from 1793 to 1963. 1963 had 466 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 1963-09-12: 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	345
20 to 40	25
40 to 60	2
60 to 80	0
80 to 100	2