Weather Records on 21 September 1993

911 weather records were set or tied worldwide on 21 September 1993. Highest significance: Cape St. Francis, ZA.

Key Facts for 21 September 1993

On 21 September 1993, 911 weather records were set or tied at long-record stations worldwide.
237 were record highs and 344 were record lows, counting maximum and minimum temperature.
By timescale, 9 were all-time records, 22 monthly and 880 daily.
Cape St. Francis set a daily record precipitation of 67.0 mm (2.6 in) on 21 September 1993.
Across 155 earlier years (1805 to 2026) the same calendar date averaged 448 records.

Record Map

911 stations

911 station records on 21 September 1993 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 September 1993: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cape St. Francis	South Africa	Record daily precipitation	67.0 mm (2.6 in)	75 of 100 (Major)
Valle de Santiago	Mexico	Record daily precipitation	78.7 mm (3.1 in)	67 of 100 (Major)
Vigas	Mexico	Record daily precipitation	212.9 mm (8.4 in)	63 of 100 (Major)
San Antonio de Guayabos	Mexico	Record daily precipitation	326.9 mm (12.9 in)	61 of 100 (Major)
Requetemu	Mexico	Record daily precipitation	419.9 mm (16.5 in)	60 of 100 (Major)
Humansdorp (Pol)	South Africa	Record daily precipitation	74.0 mm (2.9 in)	57 of 100 (Notable)
Bond Springs Homestead	Australia	Record daily precipitation	30.0 mm (1.2 in)	55 of 100 (Notable)
Mkambati	South Africa	Record daily precipitation	147.0 mm (5.8 in)	55 of 100 (Notable)
Witelsbos (Bos)	South Africa	Record daily precipitation	76.0 mm (3.0 in)	51 of 100 (Notable)
Gallinas	Mexico	Record daily precipitation	334.0 mm (13.1 in)	50 of 100 (Notable)
Mooredale	South Africa	Record daily precipitation	57.0 mm (2.2 in)	50 of 100 (Notable)
Cerritos	Mexico	Record daily precipitation	135.9 mm (5.4 in)	49 of 100 (Notable)
Lagunillas	Mexico	Record daily precipitation	209.8 mm (8.3 in)	49 of 100 (Notable)
Blackville 3 W	United States	Record daily precipitation	80.0 mm (3.1 in)	49 of 100 (Notable)
Newberry	United States	Record daily precipitation	44.5 mm (1.8 in)	49 of 100 (Notable)
Bordeaux-Merignac	France	Record daily precipitation	51.2 mm (2.0 in)	48 of 100 (Notable)
Armadillo de Los Infante	Mexico	Record daily precipitation	111.0 mm (4.4 in)	48 of 100 (Notable)
Colonia Alvaro Obregon	Mexico	Record daily precipitation	147.3 mm (5.8 in)	48 of 100 (Notable)
Santa Cruz	Mexico	Record daily precipitation	339.9 mm (13.4 in)	47 of 100 (Notable)
Van Staadens (Rsv)	South Africa	Record daily precipitation	66.0 mm (2.6 in)	47 of 100 (Notable)
Sakon Nakhon	Thailand	Record daily precipitation	130.0 mm (5.1 in)	47 of 100 (Notable)
Hankey (Pol)	South Africa	Record daily precipitation	48.8 mm (1.9 in)	46 of 100 (Notable)
Manley Hot Springs	United States	Record daily precipitation	26.7 mm (1.1 in)	45 of 100 (Notable)
Teixeira Soares (Est.Exper.)	Brazil	Record daily precipitation	96.9 mm (3.8 in)	44 of 100 (Notable)
Lhasa	China	Record daily precipitation	29.7 mm (1.2 in)	44 of 100 (Notable)
Port Alfred	South Africa	Record daily precipitation	61.0 mm (2.4 in)	44 of 100 (Notable)
Umzonia (Rsv)	South Africa	Record daily precipitation	54.5 mm (2.1 in)	44 of 100 (Notable)
Daroca	Spain	Record daily precipitation	32.4 mm (1.3 in)	44 of 100 (Notable)
Nhangapi	Brazil	Record daily precipitation	49.5 mm (1.9 in)	43 of 100 (Notable)
Michoacanejo	Mexico	Record daily precipitation	41.9 mm (1.6 in)	42 of 100 (Notable)
Altepexi	Mexico	Record daily precipitation	59.9 mm (2.4 in)	42 of 100 (Notable)
Hopewell	South Africa	Record daily precipitation	66.0 mm (2.6 in)	42 of 100 (Notable)
Caltepec	Mexico	Record daily precipitation	46.5 mm (1.8 in)	41 of 100 (Notable)
Damian Carmona	Mexico	Record daily precipitation	265.9 mm (10.5 in)	41 of 100 (Notable)
Calpulalpan	Mexico	Record daily precipitation	63.5 mm (2.5 in)	41 of 100 (Notable)
Die Hoogte	South Africa	Record daily precipitation	40.0 mm (1.6 in)	41 of 100 (Notable)
Clay	United States	Record daily precipitation	46.2 mm (1.8 in)	41 of 100 (Notable)
W Pt	United States	Record daily precipitation	49.8 mm (2.0 in)	40 of 100 (Notable)
Cundancito	Mexico	Record daily precipitation	113.3 mm (4.5 in)	39 of 100 (Notable)
Kleinfontein	South Africa	Record daily precipitation	37.0 mm (1.5 in)	39 of 100 (Notable)
Somerset East	South Africa	Record daily precipitation	45.0 mm (1.8 in)	39 of 100 (Notable)
Plainfield	United States	Record low maximum temperature	15.6 C (60.1 F)	39 of 100 (Notable)
Franklinville	United States	Record low minimum temperature	-1.7 C (28.9 F)	39 of 100 (Notable)
Riverside 7 SSW	United States	Record low minimum temperature	-8.9 C (16.0 F)	39 of 100 (Notable)
Praia Grande (Parana)	Brazil	Record daily precipitation	71.1 mm (2.8 in)	38 of 100 (Notable)
Ariri	Brazil	Record daily precipitation	79.6 mm (3.1 in)	38 of 100 (Notable)
Palmillas	Mexico	Record daily precipitation	43.9 mm (1.7 in)	38 of 100 (Notable)
Paso Real de Guerrero	Mexico	Record daily precipitation	49.8 mm (2.0 in)	38 of 100 (Notable)
Bulken	Norway	Record daily precipitation	37.6 mm (1.5 in)	38 of 100 (Notable)
Kentani (Bos)	South Africa	Record daily precipitation	89.0 mm (3.5 in)	38 of 100 (Notable)
El Pujal	Mexico	Record daily precipitation	209.6 mm (8.3 in)	37 of 100 (Notable)
Paredes	Mexico	Record daily precipitation	159.8 mm (6.3 in)	37 of 100 (Notable)
Mc Cormick 9 E	United States	Record daily precipitation	46.2 mm (1.8 in)	37 of 100 (Notable)
Broadford Golf Course	Australia	Record daily precipitation	38.6 mm (1.5 in)	36 of 100 (Notable)
Levendale	Australia	Record daily precipitation	26.2 mm (1.0 in)	36 of 100 (Notable)
Tarbes - Ossun	France	Record daily precipitation	30.0 mm (1.2 in)	36 of 100 (Notable)
Cacalotenango	Mexico	Record daily precipitation	57.4 mm (2.3 in)	36 of 100 (Notable)
Presa Requena	Mexico	Record daily precipitation	44.2 mm (1.7 in)	36 of 100 (Notable)
Fokstua	Norway	Record daily precipitation	25.6 mm (1.0 in)	36 of 100 (Notable)
Nikolaev	Ukraine	Record low minimum temperature	4.4 C (39.9 F)	36 of 100 (Notable)

Counts by Type and Timescale

911 records

Records set or tied on 21 September 1993 by type: Highest daily maximum 89, Lowest daily maximum 183, Highest daily minimum 148, Lowest daily minimum 161, Heaviest daily rainfall 327, Heaviest daily snowfall 2, Deepest snow cover 1.

Records on 21 September 1993 by type
Record type	Records
Highest daily maximum	89
Lowest daily maximum	183
Highest daily minimum	148
Lowest daily minimum	161
Heaviest daily rainfall	327
Heaviest daily snowfall	2
Deepest snow cover	1

Records on 21 September 1993 by timescale: all-time 9, monthly 22, daily 880.

How Much Records Were Beaten By

681 broken records

Margins by which the 681 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 123.0. Ties are not counted.

Top 20 by Significance

21 September 1993

Top 20 records on 21 September 1993 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 September 1993	Cape St. Francis, ZA	daily rain	67.0 mm (2.6 in)	41.0 mm (1.6 in)	108 years	75 of 100 (Major)
21 September 1993	Valle de Santiago, MX	daily rain	78.7 mm (3.1 in)	54.3 mm (2.1 in)	68 years	67 of 100 (Major)
21 September 1993	Vigas, MX	all-time rain	212.9 mm (8.4 in)	75.0 mm (3.0 in)	3 years	63 of 100 (Major)
21 September 1993	San Antonio de Guayabos, MX	all-time rain	326.9 mm (12.9 in)	90.9 mm (3.6 in)	18 years	61 of 100 (Major)
21 September 1993	Requetemu, MX	all-time rain	419.9 mm (16.5 in)	123.0 mm (4.8 in)	3 years	60 of 100 (Major)
21 September 1993	Humansdorp (Pol), ZA	daily rain	74.0 mm (2.9 in)	56.0 mm (2.2 in)	26 years	57 of 100 (Notable)
21 September 1993	Bond Springs Homestead, AU	daily rain	30.0 mm (1.2 in)	22.1 mm (0.9 in)	32 years	55 of 100 (Notable)
21 September 1993	Mkambati, ZA	daily rain	147.0 mm (5.8 in)	108.0 mm (4.3 in)	32 years	55 of 100 (Notable)
21 September 1993	Witelsbos (Bos), ZA	daily rain	76.0 mm (3.0 in)	33.3 mm (1.3 in)	68 years	51 of 100 (Notable)
21 September 1993	Gallinas, MX	monthly rain	334.0 mm (13.1 in)	96.5 mm (3.8 in)	18 years	50 of 100 (Notable)
21 September 1993	Mooredale, ZA	monthly rain	57.0 mm (2.2 in)	12.0 mm (0.5 in)	64 years	50 of 100 (Notable)
21 September 1993	Cerritos, MX	all-time rain	135.9 mm (5.4 in)	31.5 mm (1.2 in)	20 years	49 of 100 (Notable)
21 September 1993	Lagunillas, MX	daily rain	209.8 mm (8.3 in)	101.8 mm (4.0 in)	19 years	49 of 100 (Notable)
21 September 1993	Blackville 3 W, US	daily rain	80.0 mm (3.1 in)	40.6 mm (1.6 in)	63 years	49 of 100 (Notable)
21 September 1993	Newberry, US	daily rain	44.5 mm (1.8 in)	18.6 mm (0.7 in)	96 years	49 of 100 (Notable)
21 September 1993	Bordeaux-Merignac, FR	daily rain	51.2 mm (2.0 in)	10.2 mm (0.4 in)	92 years	48 of 100 (Notable)
21 September 1993	Armadillo de Los Infante, MX	daily rain	111.0 mm (4.4 in)	86.1 mm (3.4 in)	19 years	48 of 100 (Notable)
21 September 1993	Colonia Alvaro Obregon, MX	daily rain	147.3 mm (5.8 in)	99.0 mm (3.9 in)	19 years	48 of 100 (Notable)
21 September 1993	Santa Cruz, MX	monthly rain	339.9 mm (13.4 in)	100.1 mm (3.9 in)	18 years	47 of 100 (Notable)
21 September 1993	Van Staadens (Rsv), ZA	daily rain	66.0 mm (2.6 in)	37.0 mm (1.5 in)	36 years	47 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 1993

Records set or tied on this calendar date in each year from 1805 to 1993. 1993 had 911 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	591
2026	478

Download the Data

Data for records on 1993-09-21: 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 20	609
20 to 40	53
40 to 60	7
60 to 80	3
80 to 100	5
100 to 120	3
120 to 140	1