Weather Records on 18 September 2004

1,027 weather records were set or tied worldwide on 18 September 2004. Highest significance: Schenley Lock 5, US.

Key Facts for 18 September 2004

On 18 September 2004, 1,027 weather records were set or tied at long-record stations worldwide.
387 were record highs and 166 were record lows, counting maximum and minimum temperature.
By timescale, 41 were all-time records, 54 monthly and 932 daily.
Schenley Lock 5 set an all-time record daily precipitation of 180.1 mm (7.1 in) on 18 September 2004.
Across 163 earlier years (1803 to 2026) the same calendar date averaged 418 records.

Record Map

1,027 stations

1,027 station records on 18 September 2004 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 September 2004: highest significance records shown on the map
Station	Country	Type	Value	Significance
Schenley Lock 5	United States	Record daily precipitation	180.1 mm (7.1 in)	84 of 100 (Exceptional)
Derry 4 SW	United States	Record daily precipitation	140.0 mm (5.5 in)	83 of 100 (Exceptional)
Acmetonia Lock 3	United States	Record daily precipitation	174.8 mm (6.9 in)	82 of 100 (Exceptional)
Ford City 4 S Dam	United States	Record daily precipitation	177.8 mm (7.0 in)	80 of 100 (Exceptional)
Elmira	United States	Record daily precipitation	91.4 mm (3.6 in)	79 of 100 (Major)
Moundsville	United States	Record daily precipitation	180.6 mm (7.1 in)	72 of 100 (Major)
Bareilly	India	Record daily precipitation	271.0 mm (10.7 in)	71 of 100 (Major)
Lock Haven Sewage Plt	United States	Record daily precipitation	154.9 mm (6.1 in)	71 of 100 (Major)
Waverly	United States	Record daily precipitation	98.8 mm (3.9 in)	70 of 100 (Major)
Kittanning Lock 7	United States	Record daily precipitation	146.1 mm (5.8 in)	70 of 100 (Major)
Salina 3 W	United States	Record daily precipitation	152.1 mm (6.0 in)	70 of 100 (Major)
Addison	United States	Record daily precipitation	71.4 mm (2.8 in)	67 of 100 (Major)
Braddock Lock 2	United States	Record daily precipitation	186.7 mm (7.4 in)	67 of 100 (Major)
Chambersburg 1 ESE	United States	Record daily precipitation	84.3 mm (3.3 in)	67 of 100 (Major)
Ridgway	United States	Record daily precipitation	82.6 mm (3.3 in)	67 of 100 (Major)
Glenwillard Dashields L&D	United States	Record daily precipitation	177.8 mm (7.0 in)	66 of 100 (Major)
Portageville 1N	United States	Record daily precipitation	41.9 mm (1.6 in)	64 of 100 (Major)
Millport 4 NE	United States	Record daily precipitation	74.4 mm (2.9 in)	64 of 100 (Major)
Galeton	United States	Record daily precipitation	115.6 mm (4.6 in)	64 of 100 (Major)
Hamburg	United States	Record daily precipitation	78.2 mm (3.1 in)	64 of 100 (Major)
Lewistown	United States	Record daily precipitation	137.2 mm (5.4 in)	64 of 100 (Major)
Montgomery L&D	United States	Record daily precipitation	222.0 mm (8.7 in)	64 of 100 (Major)
Spring Grove	United States	Record daily precipitation	112.8 mm (4.4 in)	64 of 100 (Major)
Middlebourne 3 ESE	United States	Record daily precipitation	87.6 mm (3.4 in)	63 of 100 (Major)
Candor 2SE	United States	Record daily precipitation	90.7 mm (3.6 in)	62 of 100 (Major)
Jackson 3 NW	United States	Record daily precipitation	99.6 mm (3.9 in)	62 of 100 (Major)
Portsmouth-Sciotoville	United States	Record daily precipitation	54.6 mm (2.1 in)	60 of 100 (Major)
Glen Hazel 2 NE Dam	United States	Record daily precipitation	78.7 mm (3.1 in)	60 of 100 (Major)
Lehighton 1SSW	United States	Record daily precipitation	105.7 mm (4.2 in)	60 of 100 (Major)
Montrose	United States	Record daily precipitation	137.2 mm (5.4 in)	60 of 100 (Major)
Susquehanna	United States	Record daily precipitation	149.6 mm (5.9 in)	60 of 100 (Major)
Uniontown 1 NE	United States	Record daily precipitation	60.5 mm (2.4 in)	60 of 100 (Major)
New Haven Tweed AP	United States	Record daily precipitation	99.1 mm (3.9 in)	60 of 100 (Major)
Claryville	United States	Record daily precipitation	95.5 mm (3.8 in)	59 of 100 (Notable)
Marietta Lock 1	United States	Record daily precipitation	130.6 mm (5.1 in)	59 of 100 (Notable)
Natrona Lock 4	United States	Record daily precipitation	144.8 mm (5.7 in)	59 of 100 (Notable)
Putneyville 2 SE Dam	United States	Record daily precipitation	145.5 mm (5.7 in)	59 of 100 (Notable)
Williamsburg	United States	Record daily precipitation	132.6 mm (5.2 in)	59 of 100 (Notable)
Confluence 1 SW Dam	United States	Record daily precipitation	77.0 mm (3.0 in)	58 of 100 (Notable)
Kane 1NNE	United States	Record daily precipitation	75.2 mm (3.0 in)	58 of 100 (Notable)
Tionesta 2 SE Lake	United States	Record daily precipitation	77.2 mm (3.0 in)	58 of 100 (Notable)
Hardwick	United States	Record daily precipitation	101.6 mm (4.0 in)	57 of 100 (Notable)
Waterloo	United States	Record daily precipitation	74.2 mm (2.9 in)	57 of 100 (Notable)
Clarion 3 SW	United States	Record daily precipitation	102.1 mm (4.0 in)	57 of 100 (Notable)
Selinsgrove 2 S	United States	Record daily precipitation	158.0 mm (6.2 in)	57 of 100 (Notable)
Donegal 2 NW	United States	Record daily precipitation	101.6 mm (4.0 in)	56 of 100 (Notable)
Landisville 2 NW	United States	Record daily precipitation	101.1 mm (4.0 in)	56 of 100 (Notable)
Phoenixville 1 E	United States	Record daily precipitation	128.8 mm (5.1 in)	56 of 100 (Notable)
Ripley	United States	Record daily precipitation	76.2 mm (3.0 in)	56 of 100 (Notable)
Harrisburg Capital City AP	United States	Record daily precipitation	80.5 mm (3.2 in)	56 of 100 (Notable)
Liberty 1 NE	United States	Record daily precipitation	108.7 mm (4.3 in)	55 of 100 (Notable)
Bloserville 1 N	United States	Record daily precipitation	112.3 mm (4.4 in)	55 of 100 (Notable)
Indiana 3 SE	United States	Record daily precipitation	121.7 mm (4.8 in)	55 of 100 (Notable)
Myerstown	United States	Record daily precipitation	132.1 mm (5.2 in)	55 of 100 (Notable)
Greenup Locks & Dam	United States	Record daily precipitation	101.9 mm (4.0 in)	54 of 100 (Notable)
Hawley 1 E	United States	Record daily precipitation	166.1 mm (6.5 in)	54 of 100 (Notable)
E Stroudsburg	United States	Record daily precipitation	119.1 mm (4.7 in)	54 of 100 (Notable)
Wolfsburg	United States	Record daily precipitation	86.4 mm (3.4 in)	54 of 100 (Notable)
El Varejonal	Mexico	Record low minimum temperature	13.9 C (57.0 F)	53 of 100 (Notable)
Mc Connellsville Lk 7	United States	Record daily precipitation	131.8 mm (5.2 in)	53 of 100 (Notable)

Counts by Type and Timescale

1,027 records

Records set or tied on 18 September 2004 by type: Highest daily maximum 175, Lowest daily maximum 106, Highest daily minimum 212, Lowest daily minimum 60, Heaviest daily rainfall 470, Heaviest daily snowfall 2, Deepest snow cover 2.

Records on 18 September 2004 by type
Record type	Records
Highest daily maximum	175
Lowest daily maximum	106
Highest daily minimum	212
Lowest daily minimum	60
Heaviest daily rainfall	470
Heaviest daily snowfall	2
Deepest snow cover	2

Records on 18 September 2004 by timescale: all-time 41, monthly 54, daily 932.

How Much Records Were Beaten By

768 broken records

Margins by which the 768 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 118.2. Ties are not counted.

Top 20 by Significance

18 September 2004

Top 20 records on 18 September 2004 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 September 2004	Schenley Lock 5, US	all-time rain	180.1 mm (7.1 in)	71.1 mm (2.8 in)	49 years	84 of 100 (Exceptional)
18 September 2004	Derry 4 SW, US	monthly rain	140.0 mm (5.5 in)	51.9 mm (2.0 in)	78 years	83 of 100 (Exceptional)
18 September 2004	Acmetonia Lock 3, US	all-time rain	174.8 mm (6.9 in)	56.2 mm (2.2 in)	40 years	82 of 100 (Exceptional)
18 September 2004	Ford City 4 S Dam, US	all-time rain	177.8 mm (7.0 in)	57.1 mm (2.2 in)	49 years	80 of 100 (Exceptional)
18 September 2004	Elmira, US	daily rain	91.4 mm (3.6 in)	60.7 mm (2.4 in)	97 years	79 of 100 (Major)
18 September 2004	Moundsville, US	all-time rain	180.6 mm (7.1 in)	53.3 mm (2.1 in)	29 years	72 of 100 (Major)
18 September 2004	Bareilly, IN	monthly rain	271.0 mm (10.7 in)	64.2 mm (2.5 in)	91 years	71 of 100 (Major)
18 September 2004	Lock Haven Sewage Plt, US	all-time rain	154.9 mm (6.1 in)	47.7 mm (1.9 in)	21 years	71 of 100 (Major)
18 September 2004	Waverly, US	all-time rain	98.8 mm (3.9 in)	12.2 mm (0.5 in)	105 years	70 of 100 (Major)
18 September 2004	Kittanning Lock 7, US	all-time rain	146.1 mm (5.8 in)	37.1 mm (1.5 in)	49 years	70 of 100 (Major)
18 September 2004	Salina 3 W, US	all-time rain	152.1 mm (6.0 in)	48.2 mm (1.9 in)	19 years	70 of 100 (Major)
18 September 2004	Addison, US	daily rain	71.4 mm (2.8 in)	46.0 mm (1.8 in)	59 years	67 of 100 (Major)
18 September 2004	Braddock Lock 2, US	all-time rain	186.7 mm (7.4 in)	65.3 mm (2.6 in)	4 years	67 of 100 (Major)
18 September 2004	Chambersburg 1 ESE, US	daily rain	84.3 mm (3.3 in)	59.9 mm (2.4 in)	59 years	67 of 100 (Major)
18 September 2004	Ridgway, US	daily rain	82.6 mm (3.3 in)	50.1 mm (2.0 in)	59 years	67 of 100 (Major)
18 September 2004	Glenwillard Dashields L&D, US	all-time rain	177.8 mm (7.0 in)	61.7 mm (2.4 in)	0 years	66 of 100 (Major)
18 September 2004	Portageville 1N, US	daily rain	41.9 mm (1.6 in)	22.8 mm (0.9 in)	105 years	64 of 100 (Major)
18 September 2004	Millport 4 NE, US	daily rain	74.4 mm (2.9 in)	40.4 mm (1.6 in)	59 years	64 of 100 (Major)
18 September 2004	Galeton, US	daily rain	115.6 mm (4.6 in)	67.8 mm (2.7 in)	59 years	64 of 100 (Major)
18 September 2004	Hamburg, US	daily rain	78.2 mm (3.1 in)	41.6 mm (1.6 in)	109 years	64 of 100 (Major)

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 2004

Records set or tied on this calendar date in each year from 1803 to 2004. 2004 had 1,027 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 2004-09-18: 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	580
20 to 40	98
40 to 60	53
60 to 80	26
80 to 100	9
100 to 120	2