Weather Records on 21 July 1993

866 weather records were set or tied worldwide on 21 July 1993. Highest significance: Low Isles Lighthouse, AU.

Key Facts for 21 July 1993

On 21 July 1993, 866 weather records were set or tied at long-record stations worldwide.
254 were record highs and 362 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 12 monthly and 852 daily.
Low Isles Lighthouse set a daily record precipitation of 27.8 mm (1.1 in) on 21 July 1993.
Across 159 earlier years (1794 to 2026) the same calendar date averaged 464 records.

Record Map

866 stations

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

Weather records on 21 July 1993: highest significance records shown on the map
Station	Country	Type	Value	Significance
Low Isles Lighthouse	Australia	Record daily precipitation	27.8 mm (1.1 in)	67 of 100 (Major)
South Johnstone Exp STN	Australia	Record daily precipitation	52.2 mm (2.1 in)	59 of 100 (Notable)
Singeshult	Sweden	Record daily precipitation	63.0 mm (2.5 in)	58 of 100 (Notable)
Natoma	United States	Record daily precipitation	113.5 mm (4.5 in)	55 of 100 (Notable)
Palolo Vly 718	United States	Record daily precipitation	110.7 mm (4.4 in)	53 of 100 (Notable)
Agartala	India	Record daily precipitation	134.9 mm (5.3 in)	52 of 100 (Notable)
Tabou	Cote D'Ivoire	Record daily precipitation	144.0 mm (5.7 in)	52 of 100 (Notable)
Donors Hill Station	Australia	Record daily precipitation	38.4 mm (1.5 in)	50 of 100 (Notable)
Havraryd_D	Sweden	Record daily precipitation	48.0 mm (1.9 in)	50 of 100 (Notable)
Alton 1 W	United States	Record daily precipitation	101.6 mm (4.0 in)	49 of 100 (Notable)
Vantaa Helsinki-Vantaan Lentoa	Finland	Record daily precipitation	44.8 mm (1.8 in)	48 of 100 (Notable)
Magdalena	United States	Record low minimum temperature	5.6 C (42.1 F)	48 of 100 (Notable)
Baia Mare	Romania	Record high minimum temperature	23.2 C (73.8 F)	47 of 100 (Notable)
Drobeta Turnu Severin	Romania	Record high minimum temperature	25.1 C (77.2 F)	46 of 100 (Notable)
Fagered	Sweden	Record daily precipitation	47.5 mm (1.9 in)	46 of 100 (Notable)
Nuuanu Rsch 4 783	United States	Record daily precipitation	103.1 mm (4.1 in)	46 of 100 (Notable)
Gronbaek-Allingskovgard	Denmark	Record daily precipitation	29.1 mm (1.1 in)	45 of 100 (Notable)
Porvoo Jernbole	Finland	Record daily precipitation	46.8 mm (1.8 in)	45 of 100 (Notable)
Covert	United States	Record daily precipitation	104.6 mm (4.1 in)	45 of 100 (Notable)
Lindsborg 3E	United States	Record daily precipitation	59.9 mm (2.4 in)	45 of 100 (Notable)
Casillas	Mexico	Record daily precipitation	42.9 mm (1.7 in)	44 of 100 (Notable)
Pauoa Flats 784	United States	Record daily precipitation	121.9 mm (4.8 in)	44 of 100 (Notable)
San Bartolo	Mexico	Record low minimum temperature	10.6 C (51.1 F)	43 of 100 (Notable)
Lake Providence	United States	Record high minimum temperature	26.1 C (79.0 F)	43 of 100 (Notable)
Wilhelmina Rise 721	United States	Record daily precipitation	26.9 mm (1.1 in)	43 of 100 (Notable)
Woodville 4 ESE	United States	Record high minimum temperature	24.4 C (75.9 F)	41 of 100 (Notable)
Hooker	United States	Record daily precipitation	56.4 mm (2.2 in)	41 of 100 (Notable)
Bayan Mod	China	Record daily precipitation	28.4 mm (1.1 in)	40 of 100 (Notable)
Rochford 2 WNW	United States	Record daily precipitation	45.5 mm (1.8 in)	40 of 100 (Notable)
Nordby (Fano)	Denmark	Record low maximum temperature	13.8 C (56.8 F)	38 of 100 (Notable)
Hillsboro	United States	Record daily precipitation	106.2 mm (4.2 in)	38 of 100 (Notable)
Downing	United States	Record daily precipitation	53.3 mm (2.1 in)	38 of 100 (Notable)
Greenbrier	United States	Record daily precipitation	110.5 mm (4.4 in)	37 of 100 (Notable)
Waycross 4 NE	United States	Record daily precipitation	58.7 mm (2.3 in)	37 of 100 (Notable)
Mosby 4 ENE	United States	Record daily precipitation	36.3 mm (1.4 in)	37 of 100 (Notable)
Manoa Tun 2 716	United States	Record daily precipitation	106.7 mm (4.2 in)	37 of 100 (Notable)
Pori Porin Lentoasema	Finland	Record daily precipitation	34.7 mm (1.4 in)	36 of 100 (Notable)
Tacotan	Mexico	Record daily precipitation	54.4 mm (2.1 in)	36 of 100 (Notable)
Skogsforsen	Sweden	Record daily precipitation	40.5 mm (1.6 in)	36 of 100 (Notable)
Greer	United States	Record low minimum temperature	4.4 C (39.9 F)	36 of 100 (Notable)
Overbrook 5 SE	United States	Record daily precipitation	100.6 mm (4.0 in)	36 of 100 (Notable)
Greenville	United States	Record high minimum temperature	26.7 C (80.1 F)	36 of 100 (Notable)
Conconully	United States	Record low maximum temperature	13.9 C (57.0 F)	36 of 100 (Notable)
Vihti Maasoja	Finland	Record daily precipitation	29.0 mm (1.1 in)	35 of 100 (Notable)
Frykfors	Sweden	Record daily precipitation	36.6 mm (1.4 in)	35 of 100 (Notable)
Whiteriver 1 SW	United States	Record low minimum temperature	8.3 C (46.9 F)	35 of 100 (Notable)
De Funiak Springs 1 E	United States	Record daily precipitation	94.0 mm (3.7 in)	35 of 100 (Notable)
Nome AP	United States	Record high maximum temperature	29.4 C (84.9 F)	35 of 100 (Notable)
Askaniia Nova	Ukraine	Record high maximum temperature	36.1 C (97.0 F)	34 of 100 (Routine)
Wickenburg	United States	Record low minimum temperature	11.7 C (53.1 F)	34 of 100 (Routine)
Ellis	United States	Record daily precipitation	87.4 mm (3.4 in)	34 of 100 (Routine)
Waterloo	United States	Record daily precipitation	52.6 mm (2.1 in)	34 of 100 (Routine)
Carson	United States	Record daily precipitation	31.5 mm (1.2 in)	34 of 100 (Routine)
Red Owl	United States	Record daily precipitation	50.8 mm (2.0 in)	34 of 100 (Routine)
San Bernardo	Mexico	Record daily precipitation	26.2 mm (1.0 in)	33 of 100 (Routine)
Mayaguez City	Puerto Rico [United States]	Record high maximum temperature	35.0 C (95.0 F)	33 of 100 (Routine)
Fruita	United States	Record low minimum temperature	8.9 C (48.0 F)	33 of 100 (Routine)
Wood	United States	Record daily precipitation	48.0 mm (1.9 in)	33 of 100 (Routine)
Turkey	United States	Record daily precipitation	25.7 mm (1.0 in)	33 of 100 (Routine)
Kondopoga	Russia	Record daily precipitation	25.0 mm (1.0 in)	32 of 100 (Routine)

Counts by Type and Timescale

866 records

Records set or tied on 21 July 1993 by type: Highest daily maximum 87, Lowest daily maximum 200, Highest daily minimum 167, Lowest daily minimum 162, Heaviest daily rainfall 250.

Records on 21 July 1993 by type
Record type	Records
Highest daily maximum	87
Lowest daily maximum	200
Highest daily minimum	167
Lowest daily minimum	162
Heaviest daily rainfall	250
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 July 1993 by timescale: all-time 2, monthly 12, daily 852.

How Much Records Were Beaten By

662 broken records

Margins by which the 662 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 111.6. Ties are not counted.

Top 20 by Significance

21 July 1993

Top 20 records on 21 July 1993 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 1993	Low Isles Lighthouse, AU	daily rain	27.8 mm (1.1 in)	19.9 mm (0.8 in)	88 years	67 of 100 (Major)
21 July 1993	South Johnstone Exp STN, AU	daily rain	52.2 mm (2.1 in)	38.7 mm (1.5 in)	46 years	59 of 100 (Notable)
21 July 1993	Singeshult, SE	daily rain	63.0 mm (2.5 in)	42.9 mm (1.7 in)	48 years	58 of 100 (Notable)
21 July 1993	Natoma, US	daily rain	113.5 mm (4.5 in)	63.5 mm (2.5 in)	32 years	55 of 100 (Notable)
21 July 1993	Palolo Vly 718, US	daily rain	110.7 mm (4.4 in)	70.6 mm (2.8 in)	28 years	53 of 100 (Notable)
21 July 1993	Agartala, IN	daily rain	134.9 mm (5.3 in)	72.7 mm (2.9 in)	32 years	52 of 100 (Notable)
21 July 1993	Tabou, CI	daily rain	144.0 mm (5.7 in)	111.6 mm (4.4 in)	28 years	52 of 100 (Notable)
21 July 1993	Donors Hill Station, AU	monthly rain	38.4 mm (1.5 in)	1.3 mm (0.05 in)	97 years	50 of 100 (Notable)
21 July 1993	Havraryd_D, SE	daily rain	48.0 mm (1.9 in)	25.8 mm (1.0 in)	48 years	50 of 100 (Notable)
21 July 1993	Alton 1 W, US	daily rain	101.6 mm (4.0 in)	72.9 mm (2.9 in)	3 years	49 of 100 (Notable)
21 July 1993	Vantaa Helsinki-Vantaan Lentoa, FI	daily rain	44.8 mm (1.8 in)	23.7 mm (0.9 in)	40 years	48 of 100 (Notable)
21 July 1993	Magdalena, US	daily low min	5.6 C (42.1 F)	3.8 C (6.8 F)	86 years	48 of 100 (Notable)
21 July 1993	Baia Mare, RO	daily high min	23.2 C (73.8 F)	3.2 C (5.8 F)	90 years	47 of 100 (Notable)
21 July 1993	Drobeta Turnu Severin, RO	daily high min	25.1 C (77.2 F)	2.6 C (4.7 F)	91 years	46 of 100 (Notable)
21 July 1993	Fagered, SE	daily rain	47.5 mm (1.9 in)	32.3 mm (1.3 in)	8 years	46 of 100 (Notable)
21 July 1993	Nuuanu Rsch 4 783, US	daily rain	103.1 mm (4.1 in)	71.1 mm (2.8 in)	4 years	46 of 100 (Notable)
21 July 1993	Gronbaek-Allingskovgard, DK	daily rain	29.1 mm (1.1 in)	5.1 mm (0.20 in)	95 years	45 of 100 (Notable)
21 July 1993	Porvoo Jernbole, FI	daily rain	46.8 mm (1.8 in)	38.7 mm (1.5 in)	8 years	45 of 100 (Notable)
21 July 1993	Covert, US	daily rain	104.6 mm (4.1 in)	74.4 mm (2.9 in)	3 years	45 of 100 (Notable)
21 July 1993	Lindsborg 3E, US	daily rain	59.9 mm (2.4 in)	45.4 mm (1.8 in)	32 years	45 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

1794 to 1993

Records set or tied on this calendar date in each year from 1794 to 1993. 1993 had 866 records.

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

Records on 07-21 in each year
Year	Records
1794	1
1795	1
1796	1
1797	1
1813	2
1832	2
1837	1
1839	1
1843	1
1844	2
1854	1
1859	3
1865	3
1868	3
1872	1
1876	1
1879	2
1880	1
1881	1
1884	1
1885	1
1886	2
1888	2
1889	3
1890	2
1892	3
1893	3
1894	3
1895	1
1896	3
1897	4
1898	7
1899	2
1900	6
1901	13
1902	12
1903	10
1904	8
1905	13
1906	13
1907	12
1908	25
1909	18
1910	12
1911	37
1912	52
1913	41
1914	48
1915	81
1916	72
1917	136
1918	130
1919	51
1920	33
1921	55
1922	48
1923	132
1924	286
1925	202
1926	401
1927	191
1928	205
1929	360
1930	521
1931	549
1932	322
1933	208
1934	965
1935	236
1936	322
1937	253
1938	638
1939	415
1940	318
1941	226
1942	318
1943	253
1944	716
1945	300
1946	398
1947	795
1948	403
1949	603
1950	662
1951	427
1952	657
1953	351
1954	656
1955	582
1956	490
1957	447
1958	531
1959	940
1960	651
1961	388
1962	263
1963	470
1964	457
1965	748
1966	626
1967	313
1968	334
1969	636
1970	1,241
1971	475
1972	1,046
1973	871
1974	536
1975	380
1976	477
1977	708
1978	1,155
1979	964
1980	926
1981	1,352
1982	588
1983	1,234
1984	764
1985	554
1986	791
1987	1,025
1988	1,015
1989	973
1990	914
1991	812
1992	1,562
1993	866
1994	773
1995	1,247
1996	1,141
1997	849
1998	1,674
1999	814
2000	1,230
2001	889
2002	990
2003	1,250
2004	694
2005	1,420
2006	1,479
2007	1,145
2008	989
2009	1,306
2010	1,148
2011	1,414
2012	815
2013	526
2014	762
2015	704
2016	645
2017	433
2018	942
2019	755
2020	363
2021	574
2022	866
2023	816
2024	873
2025	881
2026	874

Download the Data

Data for records on 1993-07-21: 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 20	624
20 to 40	25
40 to 60	5
60 to 80	7
80 to 100	0
100 to 120	1