Weather Records on 21 July 1983

1,234 weather records were set or tied worldwide on 21 July 1983. Highest significance: Montrose #2, US.

Key Facts for 21 July 1983

On 21 July 1983, 1,234 weather records were set or tied at long-record stations worldwide.
559 were record highs and 276 were record lows, counting maximum and minimum temperature.
By timescale, 9 were all-time records, 36 monthly and 1,189 daily.
Montrose #2 set a monthly record daily precipitation of 37.8 mm (1.5 in) on 21 July 1983.
Across 159 earlier years (1794 to 2026) the same calendar date averaged 462 records.

Record Map

1,234 stations

1,234 station records on 21 July 1983 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 July 1983: highest significance records shown on the map
Station	Country	Type	Value	Significance
Montrose #2	United States	Record daily precipitation	37.8 mm (1.5 in)	65 of 100 (Major)
Guararema	Brazil	Record daily precipitation	32.4 mm (1.3 in)	58 of 100 (Notable)
Cacapava	Brazil	Record daily precipitation	32.6 mm (1.3 in)	52 of 100 (Notable)
Linkoeping-Malmslaett	Sweden	Record low minimum temperature	5.0 C (41.0 F)	52 of 100 (Notable)
Barra Do Pirai	Brazil	Record daily precipitation	30.0 mm (1.2 in)	51 of 100 (Notable)
Bhubaneswar	India	Record daily precipitation	119.9 mm (4.7 in)	51 of 100 (Notable)
Ny City Cntrl Park	United States	Record daily precipitation	57.4 mm (2.3 in)	50 of 100 (Notable)
Winnemucca AP	United States	Record low minimum temperature	1.7 C (35.1 F)	49 of 100 (Notable)
Moura Brasil	Brazil	Record daily precipitation	28.0 mm (1.1 in)	48 of 100 (Notable)
Visconde de Maua (Esc.Agrot)	Brazil	Record daily precipitation	35.6 mm (1.4 in)	48 of 100 (Notable)
Rawsonville (Pol)	South Africa	Record daily precipitation	73.0 mm (2.9 in)	48 of 100 (Notable)
Zelinda	Brazil	Record daily precipitation	27.0 mm (1.1 in)	47 of 100 (Notable)
Bananal (Pcd)	Brazil	Record daily precipitation	33.1 mm (1.3 in)	47 of 100 (Notable)
Riviere Bleue	Canada	Record daily precipitation	59.0 mm (2.3 in)	47 of 100 (Notable)
Cruzeiro	Brazil	Record daily precipitation	35.4 mm (1.4 in)	46 of 100 (Notable)
Stereguscij	Ukraine	Record daily precipitation	43.5 mm (1.7 in)	46 of 100 (Notable)
Shamakhy	Azerbaijan	Record daily precipitation	50.8 mm (2.0 in)	44 of 100 (Notable)
Usina Brumado	Brazil	Record daily precipitation	36.0 mm (1.4 in)	44 of 100 (Notable)
Fazenda Sobradinho	Brazil	Record daily precipitation	32.0 mm (1.3 in)	44 of 100 (Notable)
Sao Jose Do Barreiro	Brazil	Record daily precipitation	33.9 mm (1.3 in)	44 of 100 (Notable)
Rio Preto	Brazil	Record daily precipitation	25.9 mm (1.0 in)	44 of 100 (Notable)
Freguesia da Escada	Brazil	Record daily precipitation	32.8 mm (1.3 in)	44 of 100 (Notable)
Avon Park 2 W	United States	Record daily precipitation	78.7 mm (3.1 in)	44 of 100 (Notable)
Anta	Brazil	Record daily precipitation	31.2 mm (1.2 in)	42 of 100 (Notable)
Ribeirao de Sao Joaquim	Brazil	Record daily precipitation	30.0 mm (1.2 in)	42 of 100 (Notable)
Comondu	Mexico	Record daily precipitation	26.9 mm (1.1 in)	42 of 100 (Notable)
Oakland 1 SE	United States	Record daily precipitation	57.7 mm (2.3 in)	42 of 100 (Notable)
Bom Jardim de Minas	Brazil	Record daily precipitation	45.0 mm (1.8 in)	41 of 100 (Notable)
Guaratingueta	Brazil	Record daily precipitation	28.0 mm (1.1 in)	41 of 100 (Notable)
Agua Soca	Brazil	Record daily precipitation	28.3 mm (1.1 in)	41 of 100 (Notable)
Trinite des Monts	Canada	Record daily precipitation	52.0 mm (2.0 in)	41 of 100 (Notable)
Salisbury	United States	Record high minimum temperature	28.3 C (82.9 F)	41 of 100 (Notable)
Clarion 3 SW	United States	Record daily precipitation	37.8 mm (1.5 in)	41 of 100 (Notable)
Fazenda Agulhas Negras	Brazil	Record daily precipitation	32.2 mm (1.3 in)	40 of 100 (Notable)
St Pamphile	Canada	Record daily precipitation	44.4 mm (1.7 in)	40 of 100 (Notable)
Traverse Cy Cherry Capital AP	United States	Record daily precipitation	56.9 mm (2.2 in)	40 of 100 (Notable)
Sao Jose Dos Campos	Brazil	Record daily precipitation	27.6 mm (1.1 in)	39 of 100 (Notable)
Hamada	Japan	Record daily precipitation	135.0 mm (5.3 in)	39 of 100 (Notable)
Lansing Capital City AP	United States	Record daily precipitation	30.5 mm (1.2 in)	39 of 100 (Notable)
Rio da Cidade	Brazil	Record daily precipitation	56.0 mm (2.2 in)	38 of 100 (Notable)
Observatorio Do Iag	Brazil	Record daily precipitation	28.5 mm (1.1 in)	38 of 100 (Notable)
San Jacinto	Mexico	Record daily precipitation	49.8 mm (2.0 in)	38 of 100 (Notable)
New Ulm 2 SE	United States	Record high minimum temperature	26.7 C (80.1 F)	38 of 100 (Notable)
Dillon	United States	Record high minimum temperature	28.3 C (82.9 F)	38 of 100 (Notable)
Santa Branca	Brazil	Record daily precipitation	26.8 mm (1.1 in)	37 of 100 (Notable)
Sape	Brazil	Record daily precipitation	28.5 mm (1.1 in)	37 of 100 (Notable)
Luz (Estacao)	Brazil	Record daily precipitation	26.0 mm (1.0 in)	37 of 100 (Notable)
Timovskoe	Russia	Record high maximum temperature	30.6 C (87.1 F)	37 of 100 (Notable)
Elberton 2 N	United States	Record high maximum temperature	37.8 C (100.0 F)	37 of 100 (Notable)
Albion	United States	Record high minimum temperature	25.6 C (78.1 F)	37 of 100 (Notable)
Decorah	United States	Record high minimum temperature	24.4 C (75.9 F)	37 of 100 (Notable)
Wisconsin Rapids	United States	Record high maximum temperature	38.3 C (100.9 F)	37 of 100 (Notable)
Tabuleiro	Brazil	Record daily precipitation	28.6 mm (1.1 in)	36 of 100 (Notable)
Volta Redonda	Brazil	Record daily precipitation	38.0 mm (1.5 in)	36 of 100 (Notable)
Virginia	Brazil	Record daily precipitation	45.0 mm (1.8 in)	36 of 100 (Notable)
Bairro Alto	Brazil	Record daily precipitation	25.7 mm (1.0 in)	36 of 100 (Notable)
Balasore	India	Record daily precipitation	114.0 mm (4.5 in)	36 of 100 (Notable)
Kluitjeskraal (Bos)	South Africa	Record daily precipitation	49.5 mm (1.9 in)	36 of 100 (Notable)
Warrenton (Mun)	South Africa	Record daily precipitation	32.0 mm (1.3 in)	36 of 100 (Notable)
Charles City	United States	Record high minimum temperature	22.8 C (73.0 F)	36 of 100 (Notable)

Counts by Type and Timescale

1,234 records

Records set or tied on 21 July 1983 by type: Highest daily maximum 229, Lowest daily maximum 112, Highest daily minimum 330, Lowest daily minimum 164, Heaviest daily rainfall 398, Deepest snow cover 1.

Records on 21 July 1983 by type
Record type	Records
Highest daily maximum	229
Lowest daily maximum	112
Highest daily minimum	330
Lowest daily minimum	164
Heaviest daily rainfall	398
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 21 July 1983 by timescale: all-time 9, monthly 36, daily 1,189.

How Much Records Were Beaten By

963 broken records

Margins by which the 963 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 101.9. Ties are not counted.

Top 20 by Significance

21 July 1983

Top 20 records on 21 July 1983 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 1983	Montrose #2, US	monthly rain	37.8 mm (1.5 in)	8.6 mm (0.34 in)	86 years	65 of 100 (Major)
21 July 1983	Guararema, BR	daily rain	32.4 mm (1.3 in)	32.2 mm (1.3 in)	44 years	58 of 100 (Notable)
21 July 1983	Cacapava, BR	daily rain	32.6 mm (1.3 in)	32.1 mm (1.3 in)	26 years	52 of 100 (Notable)
21 July 1983	Linkoeping-Malmslaett, SE	monthly low min	5.0 C (41.0 F)	0.5 C (0.9 F)	101 years	52 of 100 (Notable)
21 July 1983	Barra Do Pirai, BR	daily rain	30.0 mm (1.2 in)	28.8 mm (1.1 in)	25 years	51 of 100 (Notable)
21 July 1983	Bhubaneswar, IN	daily rain	119.9 mm (4.7 in)	73.4 mm (2.9 in)	54 years	51 of 100 (Notable)
21 July 1983	Ny City Cntrl Park, US	daily rain	57.4 mm (2.3 in)	25.9 mm (1.0 in)	70 years	50 of 100 (Notable)
21 July 1983	Winnemucca AP, US	daily low min	1.7 C (35.1 F)	3.9 C (7.0 F)	97 years	49 of 100 (Notable)
21 July 1983	Moura Brasil, BR	daily rain	28.0 mm (1.1 in)	27.0 mm (1.1 in)	41 years	48 of 100 (Notable)
21 July 1983	Visconde de Maua (Esc.Agrot), BR	daily rain	35.6 mm (1.4 in)	27.8 mm (1.1 in)	26 years	48 of 100 (Notable)
21 July 1983	Rawsonville (Pol), ZA	daily rain	73.0 mm (2.9 in)	36.2 mm (1.4 in)	64 years	48 of 100 (Notable)
21 July 1983	Zelinda, BR	daily rain	27.0 mm (1.1 in)	22.0 mm (0.9 in)	18 years	47 of 100 (Notable)
21 July 1983	Bananal (Pcd), BR	daily rain	33.1 mm (1.3 in)	29.3 mm (1.2 in)	12 years	47 of 100 (Notable)
21 July 1983	Riviere Bleue, CA	daily rain	59.0 mm (2.3 in)	41.7 mm (1.6 in)	16 years	47 of 100 (Notable)
21 July 1983	Cruzeiro, BR	daily rain	35.4 mm (1.4 in)	32.4 mm (1.3 in)	26 years	46 of 100 (Notable)
21 July 1983	Stereguscij, UA	daily rain	43.5 mm (1.7 in)	31.5 mm (1.2 in)	28 years	46 of 100 (Notable)
21 July 1983	Shamakhy, AZ	monthly rain	50.8 mm (2.0 in)	16.3 mm (0.6 in)	14 years	44 of 100 (Notable)
21 July 1983	Usina Brumado, BR	daily rain	36.0 mm (1.4 in)	24.0 mm (0.9 in)	25 years	44 of 100 (Notable)
21 July 1983	Fazenda Sobradinho, BR	daily rain	32.0 mm (1.3 in)	26.0 mm (1.0 in)	25 years	44 of 100 (Notable)
21 July 1983	Sao Jose Do Barreiro, BR	daily rain	33.9 mm (1.3 in)	23.8 mm (0.9 in)	26 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

1794 to 1983

Records set or tied on this calendar date in each year from 1794 to 1983. 1983 had 1,234 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 1983-07-21: 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 2026-10-13 (13 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	886
20 to 40	69
40 to 60	4
60 to 80	3
80 to 100	0
100 to 120	1