Weather Records on 18 September 2012

922 weather records were set or tied worldwide on 18 September 2012. Highest significance: Scottsboro, US.

Key Facts for 18 September 2012

On 18 September 2012, 922 weather records were set or tied at long-record stations worldwide.
291 were record highs and 205 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 28 monthly and 890 daily.
Scottsboro set a daily record precipitation of 112.5 mm (4.4 in) on 18 September 2012.
Across 163 earlier years (1803 to 2026) the same calendar date averaged 418 records.

Record Map

922 stations

922 station records on 18 September 2012 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 September 2012: highest significance records shown on the map
Station	Country	Type	Value	Significance
Scottsboro	United States	Record daily precipitation	112.5 mm (4.4 in)	79 of 100 (Major)
Rogersville 1 NE	United States	Record daily precipitation	91.7 mm (3.6 in)	79 of 100 (Major)
Hohenwald	United States	Record daily precipitation	72.6 mm (2.9 in)	70 of 100 (Major)
Monterey	United States	Record daily precipitation	147.3 mm (5.8 in)	66 of 100 (Major)
Knoxville AP	United States	Record daily precipitation	80.3 mm (3.2 in)	66 of 100 (Major)
Bridgeport 5 NW	United States	Record daily precipitation	87.9 mm (3.5 in)	63 of 100 (Major)
Melnichnoe	Russia	Record daily precipitation	56.7 mm (2.2 in)	59 of 100 (Notable)
Sparta Wwtp	United States	Record daily precipitation	115.6 mm (4.6 in)	59 of 100 (Notable)
Norris	United States	Record daily precipitation	132.8 mm (5.2 in)	58 of 100 (Notable)
Asheville AP	United States	Record daily precipitation	83.3 mm (3.3 in)	58 of 100 (Notable)
Ashland	United States	Record daily precipitation	74.2 mm (2.9 in)	57 of 100 (Notable)
Carthage	United States	Record daily precipitation	67.3 mm (2.6 in)	57 of 100 (Notable)
Oneida	United States	Record daily precipitation	77.2 mm (3.0 in)	56 of 100 (Notable)
Pokolbin (Ben Ean)	Australia	Record daily precipitation	38.2 mm (1.5 in)	55 of 100 (Notable)
Monticello 3 NE	United States	Record daily precipitation	106.7 mm (4.2 in)	54 of 100 (Notable)
Celina	United States	Record daily precipitation	56.1 mm (2.2 in)	54 of 100 (Notable)
Lebanon	United States	Record daily precipitation	48.8 mm (1.9 in)	53 of 100 (Notable)
Mayaguez City	Puerto Rico [United States]	Record high minimum temperature	25.0 C (77.0 F)	52 of 100 (Notable)
Rudnaja Pristan	Russia	Record daily precipitation	143.6 mm (5.7 in)	52 of 100 (Notable)
Athens	United States	Record daily precipitation	134.1 mm (5.3 in)	52 of 100 (Notable)
Pulaski Wwtp	United States	Record daily precipitation	154.9 mm (6.1 in)	52 of 100 (Notable)
Albany Intl AP	United States	Record daily precipitation	81.0 mm (3.2 in)	52 of 100 (Notable)
Ft Payne	United States	Record daily precipitation	106.7 mm (4.2 in)	51 of 100 (Notable)
Knoxville Exp STN	United States	Record daily precipitation	169.2 mm (6.7 in)	51 of 100 (Notable)
Lewisburg Exp STN	United States	Record daily precipitation	90.7 mm (3.6 in)	51 of 100 (Notable)
Asheville	United States	Record daily precipitation	58.4 mm (2.3 in)	51 of 100 (Notable)
Ulmarra (Newsagency)	Australia	Record daily precipitation	32.6 mm (1.3 in)	49 of 100 (Notable)
Franklin Sewage Plt	United States	Record daily precipitation	59.9 mm (2.4 in)	49 of 100 (Notable)
Livingston Radio Wliv	United States	Record daily precipitation	135.6 mm (5.3 in)	49 of 100 (Notable)
Morristown Radio Wcrk	United States	Record daily precipitation	86.9 mm (3.4 in)	49 of 100 (Notable)
Gorakhpur	India	Record daily precipitation	156.0 mm (6.1 in)	48 of 100 (Notable)
Murfreesboro 5 N	United States	Record daily precipitation	96.5 mm (3.8 in)	48 of 100 (Notable)
Oneida	United States	Record daily precipitation	86.4 mm (3.4 in)	48 of 100 (Notable)
Pokolbin (Somerset)	Australia	Record daily precipitation	31.6 mm (1.2 in)	47 of 100 (Notable)
W Liberty 3NW	United States	Record daily precipitation	82.3 mm (3.2 in)	47 of 100 (Notable)
Morganton	United States	Record daily precipitation	76.2 mm (3.0 in)	47 of 100 (Notable)
Pokolbin (Bellevue)	Australia	Record daily precipitation	41.8 mm (1.6 in)	46 of 100 (Notable)
Nevelsk	Russia	Record daily precipitation	92.8 mm (3.7 in)	46 of 100 (Notable)
Cookeville	United States	Record daily precipitation	158.8 mm (6.3 in)	46 of 100 (Notable)
Tazewell	United States	Record daily precipitation	101.6 mm (4.0 in)	46 of 100 (Notable)
Alta Lufthavn	Norway	Record daily precipitation	31.4 mm (1.2 in)	45 of 100 (Notable)
Usher Twr	United States	Record daily precipitation	147.3 mm (5.8 in)	45 of 100 (Notable)
Buckhorn Lake	United States	Record daily precipitation	61.2 mm (2.4 in)	45 of 100 (Notable)
Tallulah	United States	Record daily precipitation	50.8 mm (2.0 in)	45 of 100 (Notable)
Allardt	United States	Record daily precipitation	91.4 mm (3.6 in)	45 of 100 (Notable)
Dayton 2SE	United States	Record daily precipitation	144.0 mm (5.7 in)	45 of 100 (Notable)
Mc Minnville	United States	Record daily precipitation	61.0 mm (2.4 in)	45 of 100 (Notable)
Sewanee	United States	Record daily precipitation	111.3 mm (4.4 in)	45 of 100 (Notable)
Intl Falls Intl AP	United States	Record low minimum temperature	-6.7 C (19.9 F)	45 of 100 (Notable)
Dardanup East	Australia	Record daily precipitation	39.6 mm (1.6 in)	44 of 100 (Notable)
Sirbma	Norway	Record daily precipitation	28.0 mm (1.1 in)	44 of 100 (Notable)
Quicksand	United States	Record daily precipitation	81.5 mm (3.2 in)	44 of 100 (Notable)
Bristol AP	United States	Record daily precipitation	50.8 mm (2.0 in)	44 of 100 (Notable)
Albany	Australia	Record high minimum temperature	14.3 C (57.7 F)	43 of 100 (Notable)
Jixi	China	Record daily precipitation	65.7 mm (2.6 in)	43 of 100 (Notable)
Copainala	Mexico	Record daily precipitation	69.3 mm (2.7 in)	43 of 100 (Notable)
Shippensburg	United States	Record daily precipitation	61.2 mm (2.4 in)	43 of 100 (Notable)
Holmsk	Russia	Record daily precipitation	91.9 mm (3.6 in)	42 of 100 (Notable)
Washington 2 ESE	United States	Record high minimum temperature	22.8 C (73.0 F)	42 of 100 (Notable)
Booneville	United States	Record daily precipitation	41.9 mm (1.6 in)	42 of 100 (Notable)

Counts by Type and Timescale

922 records

Records set or tied on 18 September 2012 by type: Highest daily maximum 131, Lowest daily maximum 82, Highest daily minimum 160, Lowest daily minimum 123, Heaviest daily rainfall 426.

Records on 18 September 2012 by type
Record type	Records
Highest daily maximum	131
Lowest daily maximum	82
Highest daily minimum	160
Lowest daily minimum	123
Heaviest daily rainfall	426
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 September 2012 by timescale: all-time 4, monthly 28, daily 890.

How Much Records Were Beaten By

761 broken records

Margins by which the 761 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 102.8. Ties are not counted.

Top 20 by Significance

18 September 2012

Top 20 records on 18 September 2012 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 September 2012	Scottsboro, US	daily rain	112.5 mm (4.4 in)	76.9 mm (3.0 in)	99 years	79 of 100 (Major)
18 September 2012	Rogersville 1 NE, US	daily rain	91.7 mm (3.6 in)	63.3 mm (2.5 in)	99 years	79 of 100 (Major)
18 September 2012	Hohenwald, US	daily rain	72.6 mm (2.9 in)	44.2 mm (1.7 in)	100 years	70 of 100 (Major)
18 September 2012	Monterey, US	daily rain	147.3 mm (5.8 in)	102.8 mm (4.0 in)	54 years	66 of 100 (Major)
18 September 2012	Knoxville AP, US	daily rain	80.3 mm (3.2 in)	35.1 mm (1.4 in)	100 years	66 of 100 (Major)
18 September 2012	Bridgeport 5 NW, US	daily rain	87.9 mm (3.5 in)	67.3 mm (2.6 in)	46 years	63 of 100 (Major)
18 September 2012	Melnichnoe, RU	daily rain	56.7 mm (2.2 in)	28.0 mm (1.1 in)	70 years	59 of 100 (Notable)
18 September 2012	Sparta Wwtp, US	daily rain	115.6 mm (4.6 in)	75.0 mm (3.0 in)	40 years	59 of 100 (Notable)
18 September 2012	Norris, US	daily rain	132.8 mm (5.2 in)	101.8 mm (4.0 in)	37 years	58 of 100 (Notable)
18 September 2012	Asheville AP, US	daily rain	83.3 mm (3.3 in)	59.9 mm (2.4 in)	41 years	58 of 100 (Notable)
18 September 2012	Ashland, US	daily rain	74.2 mm (2.9 in)	38.6 mm (1.5 in)	52 years	57 of 100 (Notable)
18 September 2012	Carthage, US	daily rain	67.3 mm (2.6 in)	29.7 mm (1.2 in)	91 years	57 of 100 (Notable)
18 September 2012	Oneida, US	daily rain	77.2 mm (3.0 in)	55.9 mm (2.2 in)	37 years	56 of 100 (Notable)
18 September 2012	Pokolbin (Ben Ean), AU	daily rain	38.2 mm (1.5 in)	16.1 mm (0.6 in)	98 years	55 of 100 (Notable)
18 September 2012	Monticello 3 NE, US	daily rain	106.7 mm (4.2 in)	53.9 mm (2.1 in)	37 years	54 of 100 (Notable)
18 September 2012	Celina, US	daily rain	56.1 mm (2.2 in)	23.1 mm (0.9 in)	100 years	54 of 100 (Notable)
18 September 2012	Lebanon, US	daily rain	48.8 mm (1.9 in)	23.4 mm (0.9 in)	100 years	53 of 100 (Notable)
18 September 2012	Mayaguez City, PR	daily high min	25.0 C (77.0 F)	1.7 C (3.1 F)	107 years	52 of 100 (Notable)
18 September 2012	Rudnaja Pristan, RU	daily rain	143.6 mm (5.7 in)	59.4 mm (2.3 in)	66 years	52 of 100 (Notable)
18 September 2012	Athens, US	daily rain	134.1 mm (5.3 in)	77.5 mm (3.1 in)	37 years	52 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

1803 to 2012

Records set or tied on this calendar date in each year from 1803 to 2012. 2012 had 922 records.

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

Records on 09-18 in each year
Year	Records
1803	1
1811	1
1814	1
1819	1
1829	1
1832	1
1834	1
1835	1
1837	2
1847	2
1848	1
1849	1
1851	4
1859	1
1861	1
1865	1
1869	1
1871	1
1875	1
1876	2
1877	1
1879	1
1880	1
1881	1
1882	1
1885	1
1886	4
1889	6
1890	1
1891	1
1893	4
1894	2
1895	2
1896	4
1897	3
1898	5
1899	3
1900	2
1901	10
1902	8
1903	58
1904	6
1905	22
1906	16
1907	4
1908	11
1909	17
1910	5
1911	8
1912	43
1913	44
1914	56
1915	41
1916	58
1917	99
1918	57
1919	48
1920	56
1921	213
1922	45
1923	114
1924	62
1925	269
1926	205
1927	189
1928	114
1929	309
1930	124
1931	429
1932	226
1933	370
1934	188
1935	281
1936	155
1937	422
1938	373
1939	190
1940	402
1941	318
1942	1,001
1943	624
1944	503
1945	732
1946	576
1947	927
1948	427
1949	356
1950	370
1951	320
1952	340
1953	245
1954	446
1955	672
1956	587
1957	429
1958	491
1959	829
1960	351
1961	478
1962	360
1963	453
1964	282
1965	1,172
1966	498
1967	357
1968	763
1969	424
1970	377
1971	1,245
1972	691
1973	593
1974	559
1975	976
1976	615
1977	619
1978	1,162
1979	709
1980	652
1981	1,671
1982	603
1983	936
1984	951
1985	636
1986	730
1987	1,244
1988	997
1989	778
1990	904
1991	1,377
1992	821
1993	747
1994	852
1995	935
1996	1,237
1997	935
1998	1,038
1999	583
2000	1,146
2001	993
2002	828
2003	815
2004	1,027
2005	781
2006	1,309
2007	670
2008	697
2009	692
2010	1,040
2011	1,050
2012	922
2013	666
2014	682
2015	934
2016	893
2017	518
2018	1,200
2019	768
2020	682
2021	582
2022	613
2023	639
2024	687
2025	471
2026	864

Download the Data

Data for records on 2012-09-18: 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	644
20 to 40	73
40 to 60	28
60 to 80	12
80 to 100	2
100 to 120	2