Weather Records on 21 September 2003

959 weather records were set or tied worldwide on 21 September 2003. Highest significance: La Soledad Nte, MX.

Key Facts for 21 September 2003

On 21 September 2003, 959 weather records were set or tied at long-record stations worldwide.
605 were record highs and 178 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 22 monthly and 933 daily.
La Soledad Nte set an all-time record daily precipitation of 359.9 mm (14.2 in) on 21 September 2003.
Across 155 earlier years (1805 to 2026) the same calendar date averaged 448 records.

Record Map

959 stations

959 station records on 21 September 2003 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 September 2003: highest significance records shown on the map
Station	Country	Type	Value	Significance
La Soledad Nte	Mexico	Record daily precipitation	359.9 mm (14.2 in)	76 of 100 (Major)
Waynesboro	United States	Record daily precipitation	144.8 mm (5.7 in)	63 of 100 (Major)
Boca del Salado	Mexico	Record daily precipitation	220.0 mm (8.7 in)	57 of 100 (Notable)
Abu Hamed	Sudan	Record daily precipitation	70.1 mm (2.8 in)	57 of 100 (Notable)
Guymon	United States	Record daily precipitation	37.3 mm (1.5 in)	52 of 100 (Notable)
Lagunillas	Mexico	Record daily precipitation	141.0 mm (5.6 in)	51 of 100 (Notable)
Ostre Toten - Apelsvoll	Norway	Record daily precipitation	46.0 mm (1.8 in)	50 of 100 (Notable)
Baldwyn	United States	Record daily precipitation	134.6 mm (5.3 in)	50 of 100 (Notable)
San Antonio Sur	Mexico	Record daily precipitation	224.5 mm (8.8 in)	49 of 100 (Notable)
Praha-Klementinum	Czech Republic	Record high maximum temperature	29.9 C (85.8 F)	47 of 100 (Notable)
San Felipe	Mexico	Record daily precipitation	300.7 mm (11.8 in)	47 of 100 (Notable)
Yeneka	Mexico	Record daily precipitation	329.9 mm (13.0 in)	47 of 100 (Notable)
Huntington Lake	United States	Record high minimum temperature	17.2 C (63.0 F)	47 of 100 (Notable)
Las Truchas	Mexico	Record daily precipitation	79.0 mm (3.1 in)	46 of 100 (Notable)
El Carrizo	Mexico	Record daily precipitation	143.8 mm (5.7 in)	46 of 100 (Notable)
Lichtentanne	Germany	Record high maximum temperature	28.0 C (82.4 F)	45 of 100 (Notable)
El Triunfo	Mexico	Record daily precipitation	213.9 mm (8.4 in)	45 of 100 (Notable)
Mulege	Mexico	Record daily precipitation	94.0 mm (3.7 in)	45 of 100 (Notable)
Aibonito 1 S	Puerto Rico [United States]	Record low maximum temperature	19.4 C (66.9 F)	45 of 100 (Notable)
El Aguajito	Mexico	Record daily precipitation	59.9 mm (2.4 in)	44 of 100 (Notable)
San Antonio Las Alazanas (Smn	Mexico	Record daily precipitation	51.8 mm (2.0 in)	44 of 100 (Notable)
Ixmiquilpan (Smn)	Mexico	Record daily precipitation	92.5 mm (3.6 in)	44 of 100 (Notable)
Rinconada	Mexico	Record high maximum temperature	38.9 C (102.0 F)	44 of 100 (Notable)
Wewahitchka	United States	Record low minimum temperature	13.3 C (55.9 F)	44 of 100 (Notable)
Mengzi	China	Record daily precipitation	35.5 mm (1.4 in)	41 of 100 (Notable)
Santa Anita	Mexico	Record daily precipitation	217.9 mm (8.6 in)	41 of 100 (Notable)
Franklin	United States	Record daily precipitation	61.2 mm (2.4 in)	41 of 100 (Notable)
Matehuala (Smn)	Mexico	Record daily precipitation	63.5 mm (2.5 in)	40 of 100 (Notable)
Goodwell Rsch STN	United States	Record daily precipitation	25.4 mm (1.0 in)	40 of 100 (Notable)
Hamamatsu	Japan	Record daily precipitation	89.9 mm (3.5 in)	39 of 100 (Notable)
El Pueblito	Mexico	Record low maximum temperature	13.9 C (57.0 F)	39 of 100 (Notable)
Miyakejima	Japan	Record daily precipitation	156.0 mm (6.1 in)	38 of 100 (Notable)
San Jacinto	Mexico	Record daily precipitation	126.0 mm (5.0 in)	38 of 100 (Notable)
Ojuelos de Jalisco (Dge)	Mexico	Record daily precipitation	52.8 mm (2.1 in)	38 of 100 (Notable)
Palo Verde	Mexico	Record daily precipitation	62.0 mm (2.4 in)	38 of 100 (Notable)
Albion	United States	Record low maximum temperature	15.0 C (59.0 F)	38 of 100 (Notable)
Hurbanovo	Slovakia	Record high maximum temperature	30.5 C (86.9 F)	37 of 100 (Notable)
Mexquitic	Mexico	Record daily precipitation	53.1 mm (2.1 in)	37 of 100 (Notable)
Santo Domingo	Mexico	Record low minimum temperature	10.0 C (50.0 F)	36 of 100 (Notable)
Coahuayutla	Mexico	Record low minimum temperature	10.6 C (51.1 F)	36 of 100 (Notable)
Roosevelt Roads	Puerto Rico [United States]	Record low maximum temperature	26.7 C (80.1 F)	36 of 100 (Notable)
Kandalaksa	Russia	Record low maximum temperature	3.9 C (39.0 F)	36 of 100 (Notable)
La Ribera	Mexico	Record daily precipitation	184.4 mm (7.3 in)	35 of 100 (Notable)
San Juan Bautista Cuicatlan (	Mexico	Record high minimum temperature	22.8 C (73.0 F)	35 of 100 (Notable)
Yazoo City 5 NNE	United States	Record daily precipitation	64.0 mm (2.5 in)	35 of 100 (Notable)
Bremerton	United States	Record low minimum temperature	-1.1 C (30.0 F)	35 of 100 (Notable)
Gorlitz	Germany	Record high maximum temperature	29.1 C (84.4 F)	34 of 100 (Routine)
Amatenango del Valle	Mexico	Record daily precipitation	82.6 mm (3.3 in)	34 of 100 (Routine)
Narciso Mendoza	Mexico	Record daily precipitation	31.0 mm (1.2 in)	34 of 100 (Routine)
Ostrov Kotelnyj	Russia	Record high maximum temperature	6.0 C (42.8 F)	34 of 100 (Routine)
Oshima	Japan	Record daily precipitation	137.9 mm (5.4 in)	33 of 100 (Routine)
Klaipeda	Lithuania	Record high maximum temperature	24.6 C (76.3 F)	33 of 100 (Routine)
San Jose del Cabo	Mexico	Record daily precipitation	159.8 mm (6.3 in)	33 of 100 (Routine)
San Ildelfonso Villa Alta	Mexico	Record low maximum temperature	18.9 C (66.0 F)	33 of 100 (Routine)
La Maroma	Mexico	Record daily precipitation	39.9 mm (1.6 in)	33 of 100 (Routine)
Milan	Italy	Record high maximum temperature	32.0 C (89.6 F)	32 of 100 (Routine)
Guadalupe Victoria (Dge)	Mexico	Record daily precipitation	41.9 mm (1.6 in)	32 of 100 (Routine)
Redlands	United States	Record high maximum temperature	42.8 C (109.0 F)	32 of 100 (Routine)
Meade	United States	Record daily precipitation	32.8 mm (1.3 in)	32 of 100 (Routine)
Xiamen	China	Record daily precipitation	106.9 mm (4.2 in)	31 of 100 (Routine)

Counts by Type and Timescale

959 records

Records set or tied on 21 September 2003 by type: Highest daily maximum 400, Lowest daily maximum 138, Highest daily minimum 205, Lowest daily minimum 40, Heaviest daily rainfall 171, Heaviest daily snowfall 3, Deepest snow cover 2.

Records on 21 September 2003 by type
Record type	Records
Highest daily maximum	400
Lowest daily maximum	138
Highest daily minimum	205
Lowest daily minimum	40
Heaviest daily rainfall	171
Heaviest daily snowfall	3
Deepest snow cover	2

Records on 21 September 2003 by timescale: all-time 4, monthly 22, daily 933.

How Much Records Were Beaten By

752 broken records

Margins by which the 752 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 266.1. Ties are not counted.

Top 20 by Significance

21 September 2003

Top 20 records on 21 September 2003 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 September 2003	La Soledad Nte, MX	all-time rain	359.9 mm (14.2 in)	139.9 mm (5.5 in)	40 years	76 of 100 (Major)
21 September 2003	Waynesboro, US	daily rain	144.8 mm (5.7 in)	72.4 mm (2.9 in)	44 years	63 of 100 (Major)
21 September 2003	Boca del Salado, MX	daily rain	220.0 mm (8.7 in)	207.6 mm (8.2 in)	45 years	57 of 100 (Notable)
21 September 2003	Abu Hamed, SD	daily rain	70.1 mm (2.8 in)	70.1 mm (2.8 in)	45 years	57 of 100 (Notable)
21 September 2003	Guymon, US	daily rain	37.3 mm (1.5 in)	29.2 mm (1.1 in)	50 years	52 of 100 (Notable)
21 September 2003	Lagunillas, MX	daily rain	141.0 mm (5.6 in)	103.2 mm (4.1 in)	26 years	51 of 100 (Notable)
21 September 2003	Ostre Toten - Apelsvoll, NO	monthly rain	46.0 mm (1.8 in)	14.1 mm (0.6 in)	38 years	50 of 100 (Notable)
21 September 2003	Baldwyn, US	daily rain	134.6 mm (5.3 in)	68.6 mm (2.7 in)	24 years	50 of 100 (Notable)
21 September 2003	San Antonio Sur, MX	daily rain	224.5 mm (8.8 in)	214.8 mm (8.5 in)	12 years	49 of 100 (Notable)
21 September 2003	Praha-Klementinum, CZ	daily high max	29.9 C (85.8 F)	3.2 C (5.8 F)	177 years	47 of 100 (Notable)
21 September 2003	San Felipe, MX	daily rain	300.7 mm (11.8 in)	230.8 mm (9.1 in)	5 years	47 of 100 (Notable)
21 September 2003	Yeneka, MX	daily rain	329.9 mm (13.0 in)	266.1 mm (10.5 in)	12 years	47 of 100 (Notable)
21 September 2003	Huntington Lake, US	daily high min	17.2 C (63.0 F)	6.6 C (11.9 F)	64 years	47 of 100 (Notable)
21 September 2003	Las Truchas, MX	daily rain	79.0 mm (3.1 in)	36.1 mm (1.4 in)	30 years	46 of 100 (Notable)
21 September 2003	El Carrizo, MX	all-time rain	143.8 mm (5.7 in)	26.5 mm (1.0 in)	32 years	46 of 100 (Notable)
21 September 2003	Lichtentanne, DE	daily high max	28.0 C (82.4 F)	2.4 C (4.3 F)	128 years	45 of 100 (Notable)
21 September 2003	El Triunfo, MX	daily rain	213.9 mm (8.4 in)	190.0 mm (7.5 in)	5 years	45 of 100 (Notable)
21 September 2003	Mulege, MX	daily rain	94.0 mm (3.7 in)	64.0 mm (2.5 in)	40 years	45 of 100 (Notable)
21 September 2003	Aibonito 1 S, PR	monthly low max	19.4 C (66.9 F)	2.3 C (4.1 F)	49 years	45 of 100 (Notable)
21 September 2003	El Aguajito, MX	daily rain	59.9 mm (2.4 in)	51.0 mm (2.0 in)	22 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

1805 to 2003

Records set or tied on this calendar date in each year from 1805 to 2003. 2003 had 959 records.

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

Records on 09-21 in each year
Year	Records
1805	1
1812	1
1825	2
1840	1
1841	1
1842	1
1848	1
1854	1
1856	2
1868	1
1872	2
1873	1
1877	1
1878	1
1881	1
1882	1
1884	1
1886	1
1888	2
1889	1
1891	10
1892	1
1893	10
1894	2
1895	3
1896	2
1897	6
1898	6
1899	3
1900	2
1901	5
1902	5
1903	8
1904	20
1905	12
1906	17
1907	10
1908	17
1909	10
1910	8
1911	18
1912	26
1913	37
1914	29
1915	34
1916	48
1917	28
1918	43
1919	54
1920	29
1921	64
1922	35
1923	232
1924	291
1925	278
1926	178
1927	165
1928	81
1929	232
1930	82
1931	681
1932	242
1933	193
1934	492
1935	199
1936	329
1937	487
1938	508
1939	308
1940	908
1941	416
1942	291
1943	407
1944	413
1945	507
1946	176
1947	534
1948	301
1949	298
1950	334
1951	241
1952	430
1953	382
1954	453
1955	752
1956	1,100
1957	366
1958	588
1959	513
1960	418
1961	441
1962	1,085
1963	306
1964	374
1965	1,088
1966	565
1967	577
1968	790
1969	593
1970	708
1971	645
1972	599
1973	421
1974	652
1975	528
1976	694
1977	918
1978	818
1979	736
1980	990
1981	696
1982	1,484
1983	2,207
1984	707
1985	796
1986	671
1987	965
1988	557
1989	1,002
1990	716
1991	1,021
1992	752
1993	911
1994	713
1995	2,002
1996	1,233
1997	1,112
1998	1,481
1999	1,025
2000	884
2001	718
2002	696
2003	959
2004	888
2005	1,143
2006	920
2007	742
2008	740
2009	715
2010	1,290
2011	542
2012	595
2013	769
2014	716
2015	565
2016	989
2017	1,178
2018	1,051
2019	833
2020	580
2021	465
2022	1,049
2023	783
2024	470
2025	588
2026	469

Download the Data

Data for records on 2003-09-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 50	726
50 to 100	16
100 to 150	4
150 to 200	2
200 to 250	3
250 to 300	1