Weather Records on 15 September 2003

855 weather records were set or tied worldwide on 15 September 2003. Highest significance: Lop Buri, TH.

Key Facts for 15 September 2003

On 15 September 2003, 855 weather records were set or tied at long-record stations worldwide.
545 were record highs and 182 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 27 monthly and 825 daily.
Lop Buri set an all-time record daily precipitation of 328.9 mm (12.9 in) on 15 September 2003.
Across 170 earlier years (1797 to 2026) the same calendar date averaged 410 records.

Record Map

855 stations

855 station records on 15 September 2003 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 September 2003: highest significance records shown on the map
Station	Country	Type	Value	Significance
Lop Buri	Thailand	Record daily precipitation	328.9 mm (12.9 in)	68 of 100 (Major)
Newark Ag Farm	United States	Record daily precipitation	93.5 mm (3.7 in)	62 of 100 (Major)
Conowingo Dam	United States	Record daily precipitation	91.7 mm (3.6 in)	57 of 100 (Notable)
Aberdeen Phillips Fld	United States	Record daily precipitation	92.5 mm (3.6 in)	56 of 100 (Notable)
Ohotsk	Russia	Record daily precipitation	50.2 mm (2.0 in)	54 of 100 (Notable)
Cairns Post Office	Australia	Record high maximum temperature	33.6 C (92.5 F)	50 of 100 (Notable)
Sigonella	Italy	Record daily precipitation	86.1 mm (3.4 in)	50 of 100 (Notable)
Phoenixville 1 E	United States	Record daily precipitation	70.4 mm (2.8 in)	49 of 100 (Notable)
Uppsala_Aut	Sweden	Record high minimum temperature	15.1 C (59.2 F)	48 of 100 (Notable)
Papagayos	Mexico	Record daily precipitation	145.8 mm (5.7 in)	47 of 100 (Notable)
Tromso	Norway	Record daily precipitation	29.5 mm (1.2 in)	46 of 100 (Notable)
Uega	Russia	Record daily precipitation	36.7 mm (1.4 in)	45 of 100 (Notable)
Ft Grant	United States	Record high maximum temperature	37.2 C (99.0 F)	45 of 100 (Notable)
Stockholm	Sweden	Record high minimum temperature	14.6 C (58.3 F)	43 of 100 (Notable)
Equinunk 2 NW	United States	Record daily precipitation	66.0 mm (2.6 in)	42 of 100 (Notable)
Falun	Sweden	Record high minimum temperature	15.0 C (59.0 F)	40 of 100 (Notable)
Long Valley	United States	Record daily precipitation	83.3 mm (3.3 in)	40 of 100 (Notable)
Sretensk	Russia	Record daily precipitation	26.5 mm (1.0 in)	39 of 100 (Notable)
Hemavan	Sweden	Record daily precipitation	32.6 mm (1.3 in)	39 of 100 (Notable)
Indian Lake 2SW	United States	Record high minimum temperature	19.4 C (66.9 F)	39 of 100 (Notable)
Lake Placid 2 S	United States	Record high minimum temperature	18.9 C (66.0 F)	39 of 100 (Notable)
Wallowa	United States	Record high minimum temperature	11.1 C (52.0 F)	39 of 100 (Notable)
Odesa	Ukraine	Record daily precipitation	33.6 mm (1.3 in)	38 of 100 (Notable)
Blanca 4 NW	United States	Record low minimum temperature	-3.9 C (25.0 F)	38 of 100 (Notable)
Elizabeth	United States	Record high minimum temperature	22.2 C (72.0 F)	38 of 100 (Notable)
Daly Waters AWS	Australia	Record high maximum temperature	40.0 C (104.0 F)	37 of 100 (Notable)
Santo Domingo	Mexico	Record low minimum temperature	10.0 C (50.0 F)	37 of 100 (Notable)
Vasteras-Hasslo	Sweden	Record high minimum temperature	15.5 C (59.9 F)	37 of 100 (Notable)
Dover	United States	Record high minimum temperature	22.2 C (72.0 F)	37 of 100 (Notable)
Burnet	United States	Record low maximum temperature	22.8 C (73.0 F)	37 of 100 (Notable)
Suphan Buri	Thailand	Record daily precipitation	87.4 mm (3.4 in)	36 of 100 (Notable)
Huntington Lake	United States	Record high minimum temperature	17.2 C (63.0 F)	36 of 100 (Notable)
Falls Village	United States	Record high minimum temperature	19.4 C (66.9 F)	36 of 100 (Notable)
Dublin Phoenix Park	Ireland	Record high maximum temperature	23.7 C (74.7 F)	35 of 100 (Notable)
Calarasi	Romania	Record low maximum temperature	13.8 C (56.8 F)	35 of 100 (Notable)
Gurabo Substn	Puerto Rico [United States]	Record high minimum temperature	26.1 C (79.0 F)	34 of 100 (Routine)
Long Valley	United States	Record high minimum temperature	21.1 C (70.0 F)	34 of 100 (Routine)
Allentown Lehigh Vly Intl AP	United States	Record daily precipitation	82.0 mm (3.2 in)	34 of 100 (Routine)
Sodankyla AWS	Finland	Record high minimum temperature	9.4 C (48.9 F)	33 of 100 (Routine)
El Copital	Mexico	Record low maximum temperature	23.9 C (75.0 F)	33 of 100 (Routine)
Neshaminy Falls	United States	Record high minimum temperature	23.3 C (73.9 F)	33 of 100 (Routine)
Sigonella	Italy	Record low maximum temperature	21.1 C (70.0 F)	32 of 100 (Routine)
San Francisco Oxtotilpan	Mexico	Record daily precipitation	36.3 mm (1.4 in)	32 of 100 (Routine)
Laguna del Fresno	Mexico	Record high maximum temperature	29.4 C (84.9 F)	32 of 100 (Routine)
Stornoway Airport	United Kingdom	Record high minimum temperature	13.2 C (55.8 F)	32 of 100 (Routine)
Presque Isle	United States	Record high maximum temperature	30.0 C (86.0 F)	32 of 100 (Routine)
Cooperstown	United States	Record high minimum temperature	18.9 C (66.0 F)	32 of 100 (Routine)
Kandalaksa	Russia	Record high maximum temperature	16.7 C (62.1 F)	31 of 100 (Routine)
Circle Hot Springs	United States	Record low minimum temperature	-14.4 C (6.1 F)	31 of 100 (Routine)
Sotuta (Dge)	Mexico	Record high maximum temperature	40.0 C (104.0 F)	30 of 100 (Routine)
Hawley 1 E	United States	Record high minimum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Mason	United States	Record daily precipitation	35.8 mm (1.4 in)	30 of 100 (Routine)
Northway AP	United States	Record low minimum temperature	-11.1 C (12.0 F)	30 of 100 (Routine)
Litang	China	Record daily precipitation	34.2 mm (1.3 in)	29 of 100 (Routine)
Finca Chayabe	Mexico	Record daily precipitation	84.1 mm (3.3 in)	29 of 100 (Routine)
Margaritas	Mexico	Record high minimum temperature	25.0 C (77.0 F)	29 of 100 (Routine)
Opaeula 870	United States	Record low maximum temperature	23.3 C (73.9 F)	29 of 100 (Routine)
Miahuatlan (Smn)	Mexico	Record daily precipitation	25.9 mm (1.0 in)	28 of 100 (Routine)
Faerder Fyr	Norway	Record high minimum temperature	16.2 C (61.2 F)	28 of 100 (Routine)
Tveitsund	Norway	Record high minimum temperature	15.5 C (59.9 F)	28 of 100 (Routine)

Counts by Type and Timescale

855 records

Records set or tied on 15 September 2003 by type: Highest daily maximum 214, Lowest daily maximum 100, Highest daily minimum 331, Lowest daily minimum 82, Heaviest daily rainfall 127, Deepest snow cover 1.

Records on 15 September 2003 by type
Record type	Records
Highest daily maximum	214
Lowest daily maximum	100
Highest daily minimum	331
Lowest daily minimum	82
Heaviest daily rainfall	127
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 15 September 2003 by timescale: all-time 3, monthly 27, daily 825.

How Much Records Were Beaten By

651 broken records

Margins by which the 651 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 126.0. Ties are not counted.

Top 20 by Significance

15 September 2003

Top 20 records on 15 September 2003 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 September 2003	Lop Buri, TH	all-time rain	328.9 mm (12.9 in)	126.0 mm (5.0 in)	12 years	68 of 100 (Major)
15 September 2003	Newark Ag Farm, US	daily rain	93.5 mm (3.7 in)	42.7 mm (1.7 in)	98 years	62 of 100 (Major)
15 September 2003	Conowingo Dam, US	daily rain	91.7 mm (3.6 in)	76.0 mm (3.0 in)	46 years	57 of 100 (Notable)
15 September 2003	Aberdeen Phillips Fld, US	daily rain	92.5 mm (3.6 in)	72.4 mm (2.9 in)	29 years	56 of 100 (Notable)
15 September 2003	Ohotsk, RU	daily rain	50.2 mm (2.0 in)	17.8 mm (0.7 in)	85 years	54 of 100 (Notable)
15 September 2003	Cairns Post Office, AU	daily high max	33.6 C (92.5 F)	1.9 C (3.4 F)	102 years	50 of 100 (Notable)
15 September 2003	Sigonella, IT	daily rain	86.1 mm (3.4 in)	53.8 mm (2.1 in)	36 years	50 of 100 (Notable)
15 September 2003	Phoenixville 1 E, US	daily rain	70.4 mm (2.8 in)	22.1 mm (0.9 in)	86 years	49 of 100 (Notable)
15 September 2003	Uppsala_Aut, SE	daily high min	15.1 C (59.2 F)	3.1 C (5.6 F)	115 years	48 of 100 (Notable)
15 September 2003	Papagayos, MX	daily rain	145.8 mm (5.7 in)	115.8 mm (4.6 in)	12 years	47 of 100 (Notable)
15 September 2003	Tromso, NO	daily rain	29.5 mm (1.2 in)	10.1 mm (0.4 in)	70 years	46 of 100 (Notable)
15 September 2003	Uega, RU	daily rain	36.7 mm (1.4 in)	25.2 mm (1.0 in)	22 years	45 of 100 (Notable)
15 September 2003	Ft Grant, US	daily high max	37.2 C (99.0 F)	2.2 C (4.0 F)	98 years	45 of 100 (Notable)
15 September 2003	Stockholm, SE	daily high min	14.6 C (58.3 F)	1.1 C (2.0 F)	115 years	43 of 100 (Notable)
15 September 2003	Equinunk 2 NW, US	daily rain	66.0 mm (2.6 in)	38.8 mm (1.5 in)	36 years	42 of 100 (Notable)
15 September 2003	Falun, SE	daily high min	15.0 C (59.0 F)	3.0 C (5.4 F)	73 years	40 of 100 (Notable)
15 September 2003	Long Valley, US	daily rain	83.3 mm (3.3 in)	23.1 mm (0.9 in)	69 years	40 of 100 (Notable)
15 September 2003	Sretensk, RU	daily rain	26.5 mm (1.0 in)	17.5 mm (0.7 in)	16 years	39 of 100 (Notable)
15 September 2003	Hemavan, SE	monthly rain	32.6 mm (1.3 in)	4.1 mm (0.16 in)	54 years	39 of 100 (Notable)
15 September 2003	Indian Lake 2SW, US	daily high min	19.4 C (66.9 F)	1.6 C (2.9 F)	88 years	39 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

1797 to 2003

Records set or tied on this calendar date in each year from 1797 to 2003. 2003 had 855 records.

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

Records on 09-15 in each year
Year	Records
1797	1
1803	1
1806	2
1810	1
1816	1
1818	1
1823	2
1833	1
1836	1
1837	2
1839	1
1841	1
1848	1
1850	1
1851	1
1854	2
1856	1
1857	1
1859	1
1864	1
1865	2
1866	1
1867	2
1868	1
1869	1
1872	1
1873	2
1876	2
1877	2
1880	1
1881	1
1882	6
1884	3
1885	4
1886	2
1887	3
1888	1
1889	5
1890	1
1894	4
1895	1
1897	1
1898	3
1899	3
1900	1
1901	12
1902	7
1903	31
1904	30
1905	16
1906	6
1907	7
1908	16
1909	16
1910	2
1911	40
1912	64
1913	43
1914	18
1915	94
1916	44
1917	50
1918	50
1919	52
1920	164
1921	122
1922	53
1923	193
1924	103
1925	112
1926	134
1927	539
1928	86
1929	99
1930	235
1931	422
1932	295
1933	322
1934	351
1935	463
1936	460
1937	337
1938	247
1939	1,098
1940	181
1941	276
1942	278
1943	360
1944	396
1945	418
1946	411
1947	621
1948	557
1949	523
1950	750
1951	283
1952	455
1953	400
1954	518
1955	532
1956	646
1957	449
1958	294
1959	844
1960	410
1961	586
1962	557
1963	455
1964	839
1965	614
1966	534
1967	578
1968	429
1969	362
1970	1,157
1971	598
1972	356
1973	774
1974	386
1975	739
1976	667
1977	400
1978	628
1979	1,022
1980	563
1981	613
1982	1,315
1983	756
1984	766
1985	764
1986	928
1987	719
1988	818
1989	955
1990	911
1991	1,165
1992	919
1993	2,227
1994	1,363
1995	723
1996	1,212
1997	1,177
1998	1,768
1999	858
2000	1,175
2001	837
2002	1,212
2003	855
2004	893
2005	1,123
2006	1,042
2007	946
2008	1,153
2009	773
2010	913
2011	1,170
2012	568
2013	854
2014	443
2015	997
2016	988
2017	825
2018	874
2019	538
2020	785
2021	467
2022	392
2023	507
2024	681
2025	503
2026	779

Download the Data

Data for records on 2003-09-15: 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	625
20 to 40	17
40 to 60	5
60 to 80	2
80 to 100	0
100 to 120	1
120 to 140	1