Weather Records on 20 August 1993

759 weather records were set or tied worldwide on 20 August 1993. Highest significance: Rochford 2 WNW, US.

Key Facts for 20 August 1993

On 20 August 1993, 759 weather records were set or tied at long-record stations worldwide.
361 were record highs and 171 were record lows, counting maximum and minimum temperature.
By timescale, 9 were all-time records, 15 monthly and 735 daily.
Rochford 2 WNW set a daily record precipitation of 35.1 mm (1.4 in) on 20 August 1993.
Across 163 earlier years (1797 to 2026) the same calendar date averaged 453 records.

Record Map

759 stations

759 station records on 20 August 1993 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 August 1993: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rochford 2 WNW	United States	Record daily precipitation	35.1 mm (1.4 in)	59 of 100 (Notable)
Rio Piracicaba	Brazil	Record daily precipitation	88.0 mm (3.5 in)	57 of 100 (Notable)
Odesskoe	Russia	Record daily precipitation	40.4 mm (1.6 in)	56 of 100 (Notable)
Dudinka	Russia	Record daily precipitation	29.7 mm (1.2 in)	55 of 100 (Notable)
Ogdensburg 4 NE	United States	Record daily precipitation	49.8 mm (2.0 in)	55 of 100 (Notable)
Timpanogos Cave	United States	Record daily precipitation	38.1 mm (1.5 in)	53 of 100 (Notable)
Snowflake	United States	Record daily precipitation	36.3 mm (1.4 in)	52 of 100 (Notable)
Hot Springs	United States	Record daily precipitation	58.9 mm (2.3 in)	52 of 100 (Notable)
Howell Wwtp	United States	Record daily precipitation	41.7 mm (1.6 in)	50 of 100 (Notable)
Delphi 2 N	United States	Record daily precipitation	55.9 mm (2.2 in)	49 of 100 (Notable)
Brewster 4W	United States	Record daily precipitation	60.5 mm (2.4 in)	49 of 100 (Notable)
Fern Ridge-Veneta	United States	Record daily precipitation	31.8 mm (1.3 in)	49 of 100 (Notable)
Kokomo 3 WSW	United States	Record daily precipitation	76.2 mm (3.0 in)	48 of 100 (Notable)
Dzaore	Russia	Record low minimum temperature	3.6 C (38.5 F)	45 of 100 (Notable)
Ipanema	Brazil	Record daily precipitation	31.4 mm (1.2 in)	43 of 100 (Notable)
Evart	United States	Record daily precipitation	41.9 mm (1.6 in)	43 of 100 (Notable)
Tulihe	China	Record daily precipitation	51.0 mm (2.0 in)	42 of 100 (Notable)
Antunez	Mexico	Record low minimum temperature	15.6 C (60.1 F)	41 of 100 (Notable)
Gibson City	United States	Record daily precipitation	57.4 mm (2.3 in)	41 of 100 (Notable)
Mitchell 2 NW	United States	Record daily precipitation	33.0 mm (1.3 in)	41 of 100 (Notable)
Paulina	United States	Record daily precipitation	27.9 mm (1.1 in)	41 of 100 (Notable)
Window Rock 4 SW	United States	Record daily precipitation	25.4 mm (1.0 in)	40 of 100 (Notable)
Hermosa 3 SSW	United States	Record daily precipitation	38.9 mm (1.5 in)	40 of 100 (Notable)
Yoder 5 W	United States	Record daily precipitation	33.0 mm (1.3 in)	40 of 100 (Notable)
Presa Guaracha	Mexico	Record daily precipitation	38.4 mm (1.5 in)	39 of 100 (Notable)
Ponferrada	Spain	Record high minimum temperature	25.2 C (77.4 F)	39 of 100 (Notable)
Madrid/Cuatrovientos	Spain	Record high maximum temperature	40.6 C (105.1 F)	39 of 100 (Notable)
Natchez	United States	Record high minimum temperature	25.6 C (78.1 F)	39 of 100 (Notable)
Goodland	United States	Record daily precipitation	71.9 mm (2.8 in)	39 of 100 (Notable)
Buskala Rch	United States	Record daily precipitation	50.0 mm (2.0 in)	38 of 100 (Notable)
Opaeula 870	United States	Record daily precipitation	32.0 mm (1.3 in)	38 of 100 (Notable)
Astrakan	Russia	Record daily precipitation	26.6 mm (1.0 in)	37 of 100 (Notable)
Ripley	United States	Record high minimum temperature	23.3 C (73.9 F)	37 of 100 (Notable)
Santander/Parayas	Spain	Record high maximum temperature	33.0 C (91.4 F)	36 of 100 (Notable)
Owensboro 3ENE	United States	Record high minimum temperature	25.0 C (77.0 F)	36 of 100 (Notable)
Washburn	United States	Record high minimum temperature	20.0 C (68.0 F)	36 of 100 (Notable)
Ust-Vum	Russia	Record daily precipitation	25.8 mm (1.0 in)	35 of 100 (Notable)
Watseka Public Works	United States	Record daily precipitation	47.2 mm (1.9 in)	35 of 100 (Notable)
Belle Glade	United States	Record high maximum temperature	36.7 C (98.1 F)	34 of 100 (Routine)
De Ridder	United States	Record high minimum temperature	25.0 C (77.0 F)	34 of 100 (Routine)
Towson	United States	Record high minimum temperature	29.4 C (84.9 F)	34 of 100 (Routine)
Presa Sabaneta	Mexico	Record high maximum temperature	26.7 C (80.1 F)	33 of 100 (Routine)
Myakka Rvr Sp	United States	Record high minimum temperature	26.1 C (79.0 F)	32 of 100 (Routine)
Kawaihapai 841	United States	Record daily precipitation	32.5 mm (1.3 in)	32 of 100 (Routine)
Fazenda Santa Terezinha	Brazil	Record daily precipitation	29.8 mm (1.2 in)	31 of 100 (Routine)
A Coruna	Spain	Record high maximum temperature	35.2 C (95.4 F)	31 of 100 (Routine)
Magdalena	United States	Record low maximum temperature	20.0 C (68.0 F)	31 of 100 (Routine)
Interior 3 NE	United States	Record daily precipitation	32.5 mm (1.3 in)	31 of 100 (Routine)
Buffalo	United States	Record daily precipitation	43.7 mm (1.7 in)	31 of 100 (Routine)
Seward AP	United States	Record daily precipitation	56.9 mm (2.2 in)	31 of 100 (Routine)
Jesus Maria	Mexico	Record low maximum temperature	17.2 C (63.0 F)	30 of 100 (Routine)
San Juan Yaee	Mexico	Record low minimum temperature	11.7 C (53.1 F)	30 of 100 (Routine)
Upton	United States	Record daily precipitation	25.9 mm (1.0 in)	30 of 100 (Routine)
Whittier	United States	Record daily precipitation	102.1 mm (4.0 in)	30 of 100 (Routine)
Ascencion (Smn)	Mexico	Record low minimum temperature	10.6 C (51.1 F)	29 of 100 (Routine)
A Coruna	Spain	Record high minimum temperature	22.8 C (73.0 F)	29 of 100 (Routine)
Santander Centro	Spain	Record high maximum temperature	29.4 C (84.9 F)	29 of 100 (Routine)
Medio Monte	Mexico	Record high maximum temperature	35.0 C (95.0 F)	28 of 100 (Routine)
Juchitlan	Mexico	Record high maximum temperature	41.7 C (107.1 F)	28 of 100 (Routine)
Fajardo	Puerto Rico [United States]	Record high maximum temperature	33.3 C (91.9 F)	28 of 100 (Routine)

Counts by Type and Timescale

759 records

Records set or tied on 20 August 1993 by type: Highest daily maximum 108, Lowest daily maximum 104, Highest daily minimum 253, Lowest daily minimum 67, Heaviest daily rainfall 227.

Records on 20 August 1993 by type
Record type	Records
Highest daily maximum	108
Lowest daily maximum	104
Highest daily minimum	253
Lowest daily minimum	67
Heaviest daily rainfall	227
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 August 1993 by timescale: all-time 9, monthly 15, daily 735.

How Much Records Were Beaten By

517 broken records

Margins by which the 517 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 57.9. Ties are not counted.

Top 20 by Significance

20 August 1993

Top 20 records on 20 August 1993 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 August 1993	Rochford 2 WNW, US	daily rain	35.1 mm (1.4 in)	19.9 mm (0.8 in)	92 years	59 of 100 (Notable)
20 August 1993	Rio Piracicaba, BR	monthly rain	88.0 mm (3.5 in)	57.9 mm (2.3 in)	6 years	57 of 100 (Notable)
20 August 1993	Odesskoe, RU	daily rain	40.4 mm (1.6 in)	21.5 mm (0.8 in)	48 years	56 of 100 (Notable)
20 August 1993	Dudinka, RU	daily rain	29.7 mm (1.2 in)	19.6 mm (0.8 in)	34 years	55 of 100 (Notable)
20 August 1993	Ogdensburg 4 NE, US	daily rain	49.8 mm (2.0 in)	19.3 mm (0.8 in)	90 years	55 of 100 (Notable)
20 August 1993	Timpanogos Cave, US	daily rain	38.1 mm (1.5 in)	28.7 mm (1.1 in)	34 years	53 of 100 (Notable)
20 August 1993	Snowflake, US	daily rain	36.3 mm (1.4 in)	21.3 mm (0.8 in)	60 years	52 of 100 (Notable)
20 August 1993	Hot Springs, US	daily rain	58.9 mm (2.3 in)	41.9 mm (1.6 in)	8 years	52 of 100 (Notable)
20 August 1993	Howell Wwtp, US	daily rain	41.7 mm (1.6 in)	15.8 mm (0.6 in)	88 years	50 of 100 (Notable)
20 August 1993	Delphi 2 N, US	daily rain	55.9 mm (2.2 in)	17.8 mm (0.7 in)	88 years	49 of 100 (Notable)
20 August 1993	Brewster 4W, US	daily rain	60.5 mm (2.4 in)	40.7 mm (1.6 in)	23 years	49 of 100 (Notable)
20 August 1993	Fern Ridge-Veneta, US	daily rain	31.8 mm (1.3 in)	28.8 mm (1.1 in)	15 years	49 of 100 (Notable)
20 August 1993	Kokomo 3 WSW, US	daily rain	76.2 mm (3.0 in)	19.3 mm (0.8 in)	92 years	48 of 100 (Notable)
20 August 1993	Dzaore, RU	daily low min	3.6 C (38.5 F)	5.8 C (10.4 F)	55 years	45 of 100 (Notable)
20 August 1993	Ipanema, BR	daily rain	31.4 mm (1.2 in)	23.2 mm (0.9 in)	40 years	43 of 100 (Notable)
20 August 1993	Evart, US	daily rain	41.9 mm (1.6 in)	23.6 mm (0.9 in)	54 years	43 of 100 (Notable)
20 August 1993	Tulihe, CN	daily rain	51.0 mm (2.0 in)	27.2 mm (1.1 in)	23 years	42 of 100 (Notable)
20 August 1993	Antunez, MX	daily low min	15.6 C (60.1 F)	4.4 C (7.9 F)	30 years	41 of 100 (Notable)
20 August 1993	Gibson City, US	daily rain	57.4 mm (2.3 in)	33.8 mm (1.3 in)	56 years	41 of 100 (Notable)
20 August 1993	Mitchell 2 NW, US	daily rain	33.0 mm (1.3 in)	17.8 mm (0.7 in)	28 years	41 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 1993

Records set or tied on this calendar date in each year from 1797 to 1993. 1993 had 759 records.

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

Records on 08-20 in each year
Year	Records
1797	1
1807	1
1809	2
1816	1
1830	1
1832	1
1838	1
1840	1
1842	1
1846	1
1849	1
1850	1
1852	1
1858	3
1863	5
1867	4
1870	3
1871	1
1873	1
1875	2
1877	1
1883	2
1884	2
1885	6
1886	1
1888	1
1889	2
1890	2
1891	2
1892	6
1893	1
1894	1
1895	1
1896	5
1897	6
1898	1
1899	5
1900	7
1901	12
1902	3
1903	7
1904	30
1905	7
1906	26
1907	15
1908	21
1909	69
1910	7
1911	18
1912	25
1913	23
1914	15
1915	14
1916	74
1917	51
1918	69
1919	25
1920	47
1921	23
1922	52
1923	83
1924	132
1925	193
1926	187
1927	338
1928	101
1929	213
1930	318
1931	214
1932	299
1933	324
1934	376
1935	339
1936	543
1937	537
1938	250
1939	448
1940	695
1941	230
1942	429
1943	436
1944	355
1945	398
1946	349
1947	988
1948	403
1949	431
1950	1,341
1951	824
1952	425
1953	441
1954	476
1955	848
1956	678
1957	342
1958	281
1959	764
1960	465
1961	520
1962	684
1963	577
1964	629
1965	470
1966	1,094
1967	657
1968	862
1969	608
1970	414
1971	585
1972	522
1973	490
1974	565
1975	411
1976	894
1977	860
1978	563
1979	1,009
1980	991
1981	856
1982	620
1983	1,465
1984	696
1985	666
1986	819
1987	564
1988	991
1989	603
1990	1,262
1991	804
1992	1,168
1993	759
1994	719
1995	1,113
1996	900
1997	1,214
1998	802
1999	810
2000	989
2001	909
2002	1,208
2003	1,031
2004	1,333
2005	1,112
2006	851
2007	1,955
2008	1,170
2009	1,414
2010	1,028
2011	987
2012	1,086
2013	545
2014	582
2015	1,075
2016	872
2017	324
2018	657
2019	698
2020	1,051
2021	1,028
2022	1,038
2023	1,479
2024	589
2025	1,134
2026	985

Download the Data

Data for records on 1993-08-20: 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 10	446
10 to 20	50
20 to 30	16
30 to 40	1
40 to 50	3
50 to 60	1