Weather Records on 18 September 2003

815 weather records were set or tied worldwide on 18 September 2003. Highest significance: Lawrenceville 3 E, US.

Key Facts for 18 September 2003

On 18 September 2003, 815 weather records were set or tied at long-record stations worldwide.
423 were record highs and 157 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 20 monthly and 792 daily.
Lawrenceville 3 E set a daily record precipitation of 162.6 mm (6.4 in) on 18 September 2003.
Across 163 earlier years (1803 to 2026) the same calendar date averaged 419 records.

Record Map

815 stations

815 station records on 18 September 2003 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 September 2003: highest significance records shown on the map
Station	Country	Type	Value	Significance
Lawrenceville 3 E	United States	Record daily precipitation	162.6 mm (6.4 in)	65 of 100 (Major)
Norfolk NAS	United States	Record daily precipitation	106.9 mm (4.2 in)	62 of 100 (Major)
Edenton	United States	Record daily precipitation	196.9 mm (7.8 in)	55 of 100 (Notable)
Suffolk Lake Kilby	United States	Record daily precipitation	134.9 mm (5.3 in)	54 of 100 (Notable)
Norfolk Intl AP	United States	Record daily precipitation	102.1 mm (4.0 in)	54 of 100 (Notable)
Bemidji	United States	Record daily precipitation	71.1 mm (2.8 in)	52 of 100 (Notable)
Lewiston	United States	Record daily precipitation	101.6 mm (4.0 in)	52 of 100 (Notable)
Washington Wwtp 4W	United States	Record daily precipitation	124.5 mm (4.9 in)	51 of 100 (Notable)
Hico	United States	Record daily precipitation	142.2 mm (5.6 in)	51 of 100 (Notable)
Santo Domingo	Mexico	Record low minimum temperature	8.9 C (48.0 F)	50 of 100 (Notable)
San Luis Acatlan	Mexico	Record daily precipitation	135.9 mm (5.4 in)	50 of 100 (Notable)
Nuevo Mercurio	Mexico	Record daily precipitation	40.1 mm (1.6 in)	50 of 100 (Notable)
Charlotte Court House	United States	Record daily precipitation	101.6 mm (4.0 in)	49 of 100 (Notable)
Richmond Intl AP	United States	Record daily precipitation	109.7 mm (4.3 in)	49 of 100 (Notable)
Tlaxco	Mexico	Record daily precipitation	77.7 mm (3.1 in)	47 of 100 (Notable)
Armavir	Russia	Record daily precipitation	34.9 mm (1.4 in)	47 of 100 (Notable)
Alice	United States	Record daily precipitation	50.8 mm (2.0 in)	47 of 100 (Notable)
Ashland	United States	Record daily precipitation	81.0 mm (3.2 in)	45 of 100 (Notable)
Kristianstad	Sweden	Record high maximum temperature	23.7 C (74.7 F)	44 of 100 (Notable)
Bayboro 3 SW	United States	Record daily precipitation	139.2 mm (5.5 in)	44 of 100 (Notable)
Millersburg	United States	Record daily precipitation	56.1 mm (2.2 in)	44 of 100 (Notable)
Superior	United States	Record daily precipitation	35.1 mm (1.4 in)	44 of 100 (Notable)
Laguna del Fresno	Mexico	Record daily precipitation	46.0 mm (1.8 in)	43 of 100 (Notable)
Presa la Codorniz	Mexico	Record daily precipitation	47.8 mm (1.9 in)	42 of 100 (Notable)
Anaconda	United States	Record low minimum temperature	-4.4 C (24.1 F)	42 of 100 (Notable)
Plymouth 5 E	United States	Record daily precipitation	184.9 mm (7.3 in)	42 of 100 (Notable)
Wauseon Wtp	United States	Record low minimum temperature	0.6 C (33.1 F)	42 of 100 (Notable)
Winter	United States	Record daily precipitation	50.8 mm (2.0 in)	42 of 100 (Notable)
Elk Mtn	United States	Record daily precipitation	27.9 mm (1.1 in)	42 of 100 (Notable)
Yibin	China	Record daily precipitation	106.3 mm (4.2 in)	41 of 100 (Notable)
Cloquet	United States	Record daily precipitation	32.5 mm (1.3 in)	41 of 100 (Notable)
Cherry Point MCAS	United States	Record daily precipitation	131.8 mm (5.2 in)	41 of 100 (Notable)
Isabela Substn	Puerto Rico [United States]	Record high minimum temperature	23.9 C (75.0 F)	40 of 100 (Notable)
Lowestoft	United Kingdom	Record high maximum temperature	23.1 C (73.6 F)	40 of 100 (Notable)
Rothsay	United States	Record daily precipitation	48.8 mm (1.9 in)	40 of 100 (Notable)
Circle Hot Springs	United States	Record low minimum temperature	-14.4 C (6.1 F)	40 of 100 (Notable)
Haines AP	United States	Record low maximum temperature	6.7 C (44.1 F)	40 of 100 (Notable)
Sandy Lake Dam Libby	United States	Record high minimum temperature	18.9 C (66.0 F)	39 of 100 (Notable)
Washington Reagan Natl AP	United States	Record daily precipitation	57.9 mm (2.3 in)	39 of 100 (Notable)
Camacho	Mexico	Record daily precipitation	102.4 mm (4.0 in)	38 of 100 (Notable)
Morehead City 2 WNW	United States	Record daily precipitation	101.6 mm (4.0 in)	38 of 100 (Notable)
Walkerton 2 NW	United States	Record daily precipitation	71.1 mm (2.8 in)	38 of 100 (Notable)
Elizabeth City	United States	Record daily precipitation	137.2 mm (5.4 in)	37 of 100 (Notable)
Martin	United States	Record daily snowfall	5.1 cm (2.0 in)	37 of 100 (Notable)
Clearwater	United States	Record daily precipitation	26.4 mm (1.0 in)	37 of 100 (Notable)
Presa Colorines (Cfe)	Mexico	Record low minimum temperature	11.1 C (52.0 F)	36 of 100 (Notable)
Corozal Substn	Puerto Rico [United States]	Record high maximum temperature	35.0 C (95.0 F)	36 of 100 (Notable)
Bodoe VI	Norway	Record daily precipitation	36.3 mm (1.4 in)	35 of 100 (Notable)
Las Enramadas	Mexico	Record daily precipitation	72.4 mm (2.9 in)	34 of 100 (Routine)
Montemorelos	Mexico	Record daily precipitation	80.5 mm (3.2 in)	34 of 100 (Routine)
Warroad	United States	Record daily precipitation	77.5 mm (3.1 in)	34 of 100 (Routine)
Mayville	United States	Record daily precipitation	53.3 mm (2.1 in)	34 of 100 (Routine)
Hopewell	United States	Record daily precipitation	64.3 mm (2.5 in)	34 of 100 (Routine)
Rainbow (Pigick)	Australia	Record daily precipitation	30.0 mm (1.2 in)	33 of 100 (Routine)
Tanhuato (Smn)	Mexico	Record low minimum temperature	8.9 C (48.0 F)	33 of 100 (Routine)
Centro Experimental W-75	Mexico	Record low minimum temperature	17.8 C (64.0 F)	33 of 100 (Routine)
Sombrerete (Dge)	Mexico	Record daily precipitation	29.0 mm (1.1 in)	33 of 100 (Routine)
Palatka	United States	Record low minimum temperature	15.6 C (60.1 F)	33 of 100 (Routine)
Hamilton	United States	Record daily precipitation	86.9 mm (3.4 in)	33 of 100 (Routine)
Pineview Dam	United States	Record low minimum temperature	-10.6 C (12.9 F)	33 of 100 (Routine)

Counts by Type and Timescale

815 records

Records set or tied on 18 September 2003 by type: Highest daily maximum 207, Lowest daily maximum 68, Highest daily minimum 216, Lowest daily minimum 89, Heaviest daily rainfall 213, Heaviest daily snowfall 15, Deepest snow cover 7.

Records on 18 September 2003 by type
Record type	Records
Highest daily maximum	207
Lowest daily maximum	68
Highest daily minimum	216
Lowest daily minimum	89
Heaviest daily rainfall	213
Heaviest daily snowfall	15
Deepest snow cover	7

Records on 18 September 2003 by timescale: all-time 3, monthly 20, daily 792.

How Much Records Were Beaten By

647 broken records

Margins by which the 647 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 116.9. Ties are not counted.

Top 20 by Significance

18 September 2003

Top 20 records on 18 September 2003 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 September 2003	Lawrenceville 3 E, US	daily rain	162.6 mm (6.4 in)	116.6 mm (4.6 in)	57 years	65 of 100 (Major)
18 September 2003	Norfolk NAS, US	daily rain	106.9 mm (4.2 in)	88.4 mm (3.5 in)	57 years	62 of 100 (Major)
18 September 2003	Edenton, US	all-time rain	196.9 mm (7.8 in)	28.8 mm (1.1 in)	38 years	55 of 100 (Notable)
18 September 2003	Suffolk Lake Kilby, US	daily rain	134.9 mm (5.3 in)	116.9 mm (4.6 in)	30 years	54 of 100 (Notable)
18 September 2003	Norfolk Intl AP, US	daily rain	102.1 mm (4.0 in)	92.7 mm (3.6 in)	30 years	54 of 100 (Notable)
18 September 2003	Bemidji, US	daily rain	71.1 mm (2.8 in)	26.9 mm (1.1 in)	52 years	52 of 100 (Notable)
18 September 2003	Lewiston, US	daily rain	101.6 mm (4.0 in)	80.5 mm (3.2 in)	45 years	52 of 100 (Notable)
18 September 2003	Washington Wwtp 4W, US	daily rain	124.5 mm (4.9 in)	70.9 mm (2.8 in)	45 years	51 of 100 (Notable)
18 September 2003	Hico, US	daily rain	142.2 mm (5.6 in)	106.6 mm (4.2 in)	8 years	51 of 100 (Notable)
18 September 2003	Santo Domingo, MX	daily low min	8.9 C (48.0 F)	5.0 C (9.0 F)	50 years	50 of 100 (Notable)
18 September 2003	San Luis Acatlan, MX	daily rain	135.9 mm (5.4 in)	90.9 mm (3.6 in)	38 years	50 of 100 (Notable)
18 September 2003	Nuevo Mercurio, MX	daily rain	40.1 mm (1.6 in)	33.7 mm (1.3 in)	24 years	50 of 100 (Notable)
18 September 2003	Charlotte Court House, US	daily rain	101.6 mm (4.0 in)	64.8 mm (2.6 in)	45 years	49 of 100 (Notable)
18 September 2003	Richmond Intl AP, US	daily rain	109.7 mm (4.3 in)	54.6 mm (2.1 in)	28 years	49 of 100 (Notable)
18 September 2003	Tlaxco, MX	daily rain	77.7 mm (3.1 in)	45.2 mm (1.8 in)	4 years	47 of 100 (Notable)
18 September 2003	Armavir, RU	daily rain	34.9 mm (1.4 in)	17.1 mm (0.7 in)	62 years	47 of 100 (Notable)
18 September 2003	Alice, US	daily rain	50.8 mm (2.0 in)	30.5 mm (1.2 in)	89 years	47 of 100 (Notable)
18 September 2003	Ashland, US	daily rain	81.0 mm (3.2 in)	44.4 mm (1.7 in)	28 years	45 of 100 (Notable)
18 September 2003	Kristianstad, SE	daily high max	23.7 C (74.7 F)	1.2 C (2.2 F)	118 years	44 of 100 (Notable)
18 September 2003	Bayboro 3 SW, US	daily rain	139.2 mm (5.5 in)	116.3 mm (4.6 in)	4 years	44 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 2003

Records set or tied on this calendar date in each year from 1803 to 2003. 2003 had 815 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 2003-09-18: 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	574
20 to 40	44
40 to 60	18
60 to 80	3
80 to 100	4
100 to 120	4