Weather Records on 12 September 1971

593 weather records were set or tied worldwide on 12 September 1971. Highest significance: Woodcliff Lake, US.

Key Facts for 12 September 1971

On 12 September 1971, 593 weather records were set or tied at long-record stations worldwide.
265 were record highs and 55 were record lows, counting maximum and minimum temperature.
By timescale, 8 were all-time records, 28 monthly and 557 daily.
Woodcliff Lake set an all-time record daily precipitation of 181.1 mm (7.1 in) on 12 September 1971.
Across 164 earlier years (1793 to 2026) the same calendar date averaged 412 records.

Record Map

593 stations

593 station records on 12 September 1971 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 September 1971: highest significance records shown on the map
Station	Country	Type	Value	Significance
Woodcliff Lake	United States	Record daily precipitation	181.1 mm (7.1 in)	69 of 100 (Major)
Alice	United States	Record daily precipitation	308.4 mm (12.1 in)	59 of 100 (Notable)
George W 2 SSW	United States	Record daily precipitation	193.0 mm (7.6 in)	59 of 100 (Notable)
Encinal	United States	Record daily precipitation	114.3 mm (4.5 in)	54 of 100 (Notable)
Middletown 4 W	United States	Record daily precipitation	122.2 mm (4.8 in)	53 of 100 (Notable)
Newark Liberty Intl AP	United States	Record daily precipitation	104.6 mm (4.1 in)	53 of 100 (Notable)
Little Falls	United States	Record daily precipitation	130.0 mm (5.1 in)	49 of 100 (Notable)
Beeville 5 NE	United States	Record daily precipitation	222.0 mm (8.7 in)	49 of 100 (Notable)
Pierce 1 E	United States	Record daily precipitation	142.2 mm (5.6 in)	47 of 100 (Notable)
Boyds 2 NW	United States	Record daily precipitation	131.1 mm (5.2 in)	46 of 100 (Notable)
Hebbronville	United States	Record daily precipitation	238.8 mm (9.4 in)	46 of 100 (Notable)
Harpers Ferry River	United States	Record daily precipitation	79.0 mm (3.1 in)	46 of 100 (Notable)
Lewisburg 3 N	United States	Record daily precipitation	58.7 mm (2.3 in)	46 of 100 (Notable)
Bierbank	Australia	Record daily precipitation	40.9 mm (1.6 in)	45 of 100 (Notable)
Ivanhoe Downs	Australia	Record daily precipitation	38.1 mm (1.5 in)	45 of 100 (Notable)
Mount Morris	Australia	Record daily precipitation	31.8 mm (1.3 in)	45 of 100 (Notable)
Durham	United States	Record daily precipitation	76.2 mm (3.0 in)	45 of 100 (Notable)
Three Rivers	United States	Record daily precipitation	108.0 mm (4.3 in)	45 of 100 (Notable)
Anahuac	Mexico	Record daily precipitation	144.3 mm (5.7 in)	44 of 100 (Notable)
Mirassol	Brazil	Record daily precipitation	54.5 mm (2.1 in)	43 of 100 (Notable)
Wardensville R M Farm	United States	Record daily precipitation	55.6 mm (2.2 in)	43 of 100 (Notable)
Dale Enterprise	United States	Record daily precipitation	54.6 mm (2.1 in)	42 of 100 (Notable)
Burenda	Australia	Record daily precipitation	43.2 mm (1.7 in)	41 of 100 (Notable)
Campo Alegre	Brazil	Record daily precipitation	33.3 mm (1.3 in)	41 of 100 (Notable)
Shepetivka	Ukraine	Record daily precipitation	28.0 mm (1.1 in)	41 of 100 (Notable)
Kiev	Ukraine	Record daily precipitation	26.7 mm (1.1 in)	41 of 100 (Notable)
Paterson	United States	Record daily precipitation	176.5 mm (6.9 in)	41 of 100 (Notable)
Sao Jose Do Rio Preto	Brazil	Record daily precipitation	55.2 mm (2.2 in)	40 of 100 (Notable)
Poset	Russia	Record daily precipitation	195.9 mm (7.7 in)	40 of 100 (Notable)
Beeville 5 NE	United States	Record low maximum temperature	24.4 C (75.9 F)	40 of 100 (Notable)
Berryville	United States	Record daily precipitation	74.2 mm (2.9 in)	40 of 100 (Notable)
Elkins- Randolph Co AP	United States	Record daily precipitation	44.2 mm (1.7 in)	40 of 100 (Notable)
Annapolis Royal	Canada	Record daily precipitation	58.9 mm (2.3 in)	39 of 100 (Notable)
Meteghan River	Canada	Record daily precipitation	40.9 mm (1.6 in)	39 of 100 (Notable)
Oxford 1 E	United States	Record daily precipitation	79.2 mm (3.1 in)	38 of 100 (Notable)
Alice	United States	Record low maximum temperature	25.0 C (77.0 F)	38 of 100 (Notable)
Hot Springs	United States	Record daily precipitation	32.8 mm (1.3 in)	38 of 100 (Notable)
Colina	Brazil	Record daily precipitation	41.0 mm (1.6 in)	37 of 100 (Notable)
Padun	Russia	Record daily precipitation	31.6 mm (1.2 in)	37 of 100 (Notable)
Randolph 5 NNE	United States	Record daily precipitation	101.6 mm (4.0 in)	37 of 100 (Notable)
Camoola Park	Australia	Record daily precipitation	25.9 mm (1.0 in)	36 of 100 (Notable)
Olimpia	Brazil	Record daily precipitation	38.9 mm (1.5 in)	36 of 100 (Notable)
Vicosa	Brazil	Record daily precipitation	54.5 mm (2.1 in)	36 of 100 (Notable)
Penn Yan	United States	Record daily precipitation	31.8 mm (1.3 in)	36 of 100 (Notable)
Adolfo Pinto (Cpef)	Brazil	Record daily precipitation	52.6 mm (2.1 in)	35 of 100 (Notable)
Kentville Cda	Canada	Record daily precipitation	40.9 mm (1.6 in)	35 of 100 (Notable)
Amite	United States	Record daily precipitation	62.2 mm (2.4 in)	35 of 100 (Notable)
Salinillas	Mexico	Record daily precipitation	140.0 mm (5.5 in)	34 of 100 (Routine)
Hollister 1 SW	United States	Record high maximum temperature	41.1 C (106.0 F)	34 of 100 (Routine)
Bowman Dam	United States	Record high minimum temperature	17.8 C (64.0 F)	33 of 100 (Routine)
Burbank Valley Pump Plt	United States	Record high maximum temperature	45.0 C (113.0 F)	33 of 100 (Routine)
Independence	United States	Record high minimum temperature	20.6 C (69.1 F)	33 of 100 (Routine)
Springfield	United States	Record daily precipitation	50.3 mm (2.0 in)	33 of 100 (Routine)
George School	United States	Record daily precipitation	117.1 mm (4.6 in)	33 of 100 (Routine)
Lampazos (Smn)	Mexico	Record daily precipitation	265.9 mm (10.5 in)	32 of 100 (Routine)
Santa Cruz	United States	Record high maximum temperature	38.9 C (102.0 F)	32 of 100 (Routine)
Hammond	United States	Record daily precipitation	30.0 mm (1.2 in)	32 of 100 (Routine)
Castle Dale	United States	Record high maximum temperature	34.4 C (93.9 F)	32 of 100 (Routine)
Pulaski 2 E	United States	Record daily precipitation	30.0 mm (1.2 in)	32 of 100 (Routine)
Clay	United States	Record daily precipitation	56.4 mm (2.2 in)	32 of 100 (Routine)

Counts by Type and Timescale

593 records

Records set or tied on 12 September 1971 by type: Highest daily maximum 168, Lowest daily maximum 38, Highest daily minimum 97, Lowest daily minimum 17, Heaviest daily rainfall 273.

Records on 12 September 1971 by type
Record type	Records
Highest daily maximum	168
Lowest daily maximum	38
Highest daily minimum	97
Lowest daily minimum	17
Heaviest daily rainfall	273
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 12 September 1971 by timescale: all-time 8, monthly 28, daily 557.

How Much Records Were Beaten By

480 broken records

Margins by which the 480 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 183.4. Ties are not counted.

Top 20 by Significance

12 September 1971

Top 20 records on 12 September 1971 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 September 1971	Woodcliff Lake, US	all-time rain	181.1 mm (7.1 in)	65.0 mm (2.6 in)	29 years	69 of 100 (Major)
12 September 1971	Alice, US	all-time rain	308.4 mm (12.1 in)	41.7 mm (1.6 in)	51 years	59 of 100 (Notable)
12 September 1971	George W 2 SSW, US	daily rain	193.0 mm (7.6 in)	172.2 mm (6.8 in)	48 years	59 of 100 (Notable)
12 September 1971	Encinal, US	daily rain	114.3 mm (4.5 in)	85.1 mm (3.4 in)	46 years	54 of 100 (Notable)
12 September 1971	Middletown 4 W, US	monthly rain	122.2 mm (4.8 in)	4.6 mm (0.18 in)	103 years	53 of 100 (Notable)
12 September 1971	Newark Liberty Intl AP, US	daily rain	104.6 mm (4.1 in)	25.6 mm (1.0 in)	123 years	53 of 100 (Notable)
12 September 1971	Little Falls, US	daily rain	130.0 mm (5.1 in)	77.7 mm (3.1 in)	10 years	49 of 100 (Notable)
12 September 1971	Beeville 5 NE, US	daily rain	222.0 mm (8.7 in)	183.4 mm (7.2 in)	9 years	49 of 100 (Notable)
12 September 1971	Pierce 1 E, US	monthly rain	142.2 mm (5.6 in)	44.2 mm (1.7 in)	3 years	47 of 100 (Notable)
12 September 1971	Boyds 2 NW, US	daily rain	131.1 mm (5.2 in)	70.1 mm (2.8 in)	10 years	46 of 100 (Notable)
12 September 1971	Hebbronville, US	all-time rain	238.8 mm (9.4 in)	10.2 mm (0.4 in)	57 years	46 of 100 (Notable)
12 September 1971	Harpers Ferry River, US	daily rain	79.0 mm (3.1 in)	48.3 mm (1.9 in)	20 years	46 of 100 (Notable)
12 September 1971	Lewisburg 3 N, US	daily rain	58.7 mm (2.3 in)	35.8 mm (1.4 in)	26 years	46 of 100 (Notable)
12 September 1971	Bierbank, AU	daily rain	40.9 mm (1.6 in)	30.7 mm (1.2 in)	36 years	45 of 100 (Notable)
12 September 1971	Ivanhoe Downs, AU	daily rain	38.1 mm (1.5 in)	31.5 mm (1.2 in)	49 years	45 of 100 (Notable)
12 September 1971	Mount Morris, AU	daily rain	31.8 mm (1.3 in)	25.7 mm (1.0 in)	49 years	45 of 100 (Notable)
12 September 1971	Durham, US	daily rain	76.2 mm (3.0 in)	53.3 mm (2.1 in)	10 years	45 of 100 (Notable)
12 September 1971	Three Rivers, US	daily rain	108.0 mm (4.3 in)	79.0 mm (3.1 in)	32 years	45 of 100 (Notable)
12 September 1971	Anahuac, MX	all-time rain	144.3 mm (5.7 in)	25.4 mm (1.0 in)	30 years	44 of 100 (Notable)
12 September 1971	Mirassol, BR	daily rain	54.5 mm (2.1 in)	43.0 mm (1.7 in)	0 years	43 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 1971

Records set or tied on this calendar date in each year from 1793 to 1971. 1971 had 593 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 1971-09-12: 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 25	425
25 to 50	45
50 to 75	5
75 to 100	3
100 to 125	0
125 to 150	0
150 to 175	1
175 to 200	1