Weather Records on 17 July 1975

775 weather records were set or tied worldwide on 17 July 1975. Highest significance: Vitoria de Santo Antao, BR.

Key Facts for 17 July 1975

On 17 July 1975, 775 weather records were set or tied at long-record stations worldwide.
200 were record highs and 220 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 44 monthly and 728 daily.
Vitoria de Santo Antao set a monthly record daily precipitation of 122.8 mm (4.8 in) on 17 July 1975.
Across 163 earlier years (1793 to 2026) the same calendar date averaged 443 records.

Record Map

775 stations

775 station records on 17 July 1975 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 July 1975: highest significance records shown on the map
Station	Country	Type	Value	Significance
Vitoria de Santo Antao	Brazil	Record daily precipitation	122.8 mm (4.8 in)	66 of 100 (Major)
Iguape	Brazil	Record daily precipitation	58.0 mm (2.3 in)	63 of 100 (Major)
Pianco	Brazil	Record daily precipitation	45.0 mm (1.8 in)	62 of 100 (Major)
Serrita (Serrinha)	Brazil	Record daily precipitation	47.0 mm (1.9 in)	62 of 100 (Major)
Caraubas (Caraibeiras)	Brazil	Record daily precipitation	64.9 mm (2.6 in)	62 of 100 (Major)
Acopiara	Brazil	Record daily precipitation	67.0 mm (2.6 in)	61 of 100 (Major)
Aguas Belas	Brazil	Record daily precipitation	50.2 mm (2.0 in)	61 of 100 (Major)
Santana Do Ipanema	Brazil	Record daily precipitation	75.3 mm (3.0 in)	59 of 100 (Notable)
Casa Nova	Brazil	Record daily precipitation	33.2 mm (1.3 in)	58 of 100 (Notable)
Tacaratu	Brazil	Record daily precipitation	95.3 mm (3.8 in)	58 of 100 (Notable)
Sume (Sao Tome)	Brazil	Record daily precipitation	30.0 mm (1.2 in)	57 of 100 (Notable)
Sao Caetano	Brazil	Record daily precipitation	82.3 mm (3.2 in)	57 of 100 (Notable)
Frei Paulo	Brazil	Record daily precipitation	46.0 mm (1.8 in)	56 of 100 (Notable)
Hidrolandia (Batoque)	Brazil	Record daily precipitation	62.0 mm (2.4 in)	55 of 100 (Notable)
Sao Bento Do Una	Brazil	Record daily precipitation	89.2 mm (3.5 in)	55 of 100 (Notable)
Ribeira Do Pombal (Pombal)	Brazil	Record daily precipitation	75.0 mm (3.0 in)	55 of 100 (Notable)
Quixeramobim	Brazil	Record daily precipitation	33.8 mm (1.3 in)	54 of 100 (Notable)
Umari	Brazil	Record daily precipitation	49.0 mm (1.9 in)	54 of 100 (Notable)
Berezovo	Russia	Record daily precipitation	41.6 mm (1.6 in)	54 of 100 (Notable)
Myton	United States	Record daily precipitation	35.3 mm (1.4 in)	54 of 100 (Notable)
Registro	Brazil	Record daily precipitation	66.5 mm (2.6 in)	53 of 100 (Notable)
Pesqueira	Brazil	Record daily precipitation	52.0 mm (2.0 in)	53 of 100 (Notable)
Sitio Arapua	Brazil	Record daily precipitation	36.0 mm (1.4 in)	52 of 100 (Notable)
Carpina (Floresta Dos Leoes)	Brazil	Record daily precipitation	75.0 mm (3.0 in)	51 of 100 (Notable)
Tambe (Itambe)	Brazil	Record daily precipitation	101.0 mm (4.0 in)	50 of 100 (Notable)
Bom Jardim	Brazil	Record daily precipitation	124.8 mm (4.9 in)	50 of 100 (Notable)
Penedo	Brazil	Record daily precipitation	66.0 mm (2.6 in)	49 of 100 (Notable)
Inga	Brazil	Record daily precipitation	50.0 mm (2.0 in)	49 of 100 (Notable)
Tara (Santo Antonio Do Tara)	Brazil	Record daily precipitation	46.2 mm (1.8 in)	49 of 100 (Notable)
Simao Dias (Anapolis)	Brazil	Record daily precipitation	57.4 mm (2.3 in)	49 of 100 (Notable)
El Salto (Smn)	Mexico	Record low minimum temperature	-2.2 C (28.0 F)	49 of 100 (Notable)
Buxton	United Kingdom	Record daily precipitation	42.2 mm (1.7 in)	49 of 100 (Notable)
Pacatuba	Brazil	Record daily precipitation	57.0 mm (2.2 in)	48 of 100 (Notable)
Riversul	Brazil	Record daily precipitation	50.0 mm (2.0 in)	47 of 100 (Notable)
Maranguape	Brazil	Record daily precipitation	51.2 mm (2.0 in)	47 of 100 (Notable)
Ariri	Brazil	Record daily precipitation	76.2 mm (3.0 in)	46 of 100 (Notable)
Maracaja	Brazil	Record daily precipitation	42.5 mm (1.7 in)	46 of 100 (Notable)
Morretes	Brazil	Record daily precipitation	85.4 mm (3.4 in)	45 of 100 (Notable)
Barra Do Capinzal	Brazil	Record daily precipitation	64.2 mm (2.5 in)	45 of 100 (Notable)
Mineirolandia	Brazil	Record daily precipitation	88.3 mm (3.5 in)	45 of 100 (Notable)
Estancia	Brazil	Record daily precipitation	55.9 mm (2.2 in)	43 of 100 (Notable)
Juquia	Brazil	Record daily precipitation	46.2 mm (1.8 in)	43 of 100 (Notable)
Ust-Isim	Russia	Record daily precipitation	32.1 mm (1.3 in)	43 of 100 (Notable)
Palestina (Smn)	Mexico	Record daily precipitation	164.8 mm (6.5 in)	42 of 100 (Notable)
Encarnacion de Diaz	Mexico	Record daily precipitation	83.1 mm (3.3 in)	42 of 100 (Notable)
Acude Patos	Brazil	Record daily precipitation	60.0 mm (2.4 in)	41 of 100 (Notable)
Arnsberg	Germany	Record daily precipitation	35.8 mm (1.4 in)	41 of 100 (Notable)
Sanderson	United States	Record daily precipitation	29.0 mm (1.1 in)	41 of 100 (Notable)
Masrik	Armenia	Record daily precipitation	54.0 mm (2.1 in)	40 of 100 (Notable)
Itariri	Brazil	Record daily precipitation	37.4 mm (1.5 in)	40 of 100 (Notable)
Arrozeira	Brazil	Record daily precipitation	77.0 mm (3.0 in)	40 of 100 (Notable)
Usina Rio Dos Campos	Brazil	Record daily precipitation	64.3 mm (2.5 in)	40 of 100 (Notable)
Acarape	Brazil	Record daily precipitation	35.0 mm (1.4 in)	40 of 100 (Notable)
Cypress River	Canada	Record daily precipitation	31.0 mm (1.2 in)	40 of 100 (Notable)
Juarez	Mexico	Record low maximum temperature	22.8 C (73.0 F)	40 of 100 (Notable)
Waynesboro 2 S	United States	Record low maximum temperature	23.9 C (75.0 F)	40 of 100 (Notable)
Fazenda Sao Jeronimo	Brazil	Record daily precipitation	39.6 mm (1.6 in)	39 of 100 (Notable)
Maceio (Aeroporto)	Brazil	Record daily precipitation	57.0 mm (2.2 in)	39 of 100 (Notable)
Sonora	United States	Record low maximum temperature	22.2 C (72.0 F)	39 of 100 (Notable)
Usina Sao Jose	Brazil	Record daily precipitation	47.9 mm (1.9 in)	37 of 100 (Notable)

Counts by Type and Timescale

775 records

Records set or tied on 17 July 1975 by type: Highest daily maximum 53, Lowest daily maximum 168, Highest daily minimum 147, Lowest daily minimum 52, Heaviest daily rainfall 355.

Records on 17 July 1975 by type
Record type	Records
Highest daily maximum	53
Lowest daily maximum	168
Highest daily minimum	147
Lowest daily minimum	52
Heaviest daily rainfall	355
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 July 1975 by timescale: all-time 3, monthly 44, daily 728.

How Much Records Were Beaten By

617 broken records

Margins by which the 617 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 70.2. Ties are not counted.

Top 20 by Significance

17 July 1975

Top 20 records on 17 July 1975 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 July 1975	Vitoria de Santo Antao, BR	monthly rain	122.8 mm (4.8 in)	36.0 mm (1.4 in)	39 years	66 of 100 (Major)
17 July 1975	Iguape, BR	daily rain	58.0 mm (2.3 in)	43.0 mm (1.7 in)	56 years	63 of 100 (Major)
17 July 1975	Pianco, BR	daily rain	45.0 mm (1.8 in)	41.0 mm (1.6 in)	53 years	62 of 100 (Major)
17 July 1975	Serrita (Serrinha), BR	monthly rain	47.0 mm (1.9 in)	28.0 mm (1.1 in)	27 years	62 of 100 (Major)
17 July 1975	Caraubas (Caraibeiras), BR	monthly rain	64.9 mm (2.6 in)	38.9 mm (1.5 in)	26 years	62 of 100 (Major)
17 July 1975	Acopiara, BR	daily rain	67.0 mm (2.6 in)	62.8 mm (2.5 in)	56 years	61 of 100 (Major)
17 July 1975	Aguas Belas, BR	daily rain	50.2 mm (2.0 in)	32.1 mm (1.3 in)	53 years	61 of 100 (Major)
17 July 1975	Santana Do Ipanema, BR	daily rain	75.3 mm (3.0 in)	53.9 mm (2.1 in)	44 years	59 of 100 (Notable)
17 July 1975	Casa Nova, BR	daily rain	33.2 mm (1.3 in)	33.2 mm (1.3 in)	64 years	58 of 100 (Notable)
17 July 1975	Tacaratu, BR	monthly rain	95.3 mm (3.8 in)	32.3 mm (1.3 in)	16 years	58 of 100 (Notable)
17 July 1975	Sume (Sao Tome), BR	daily rain	30.0 mm (1.2 in)	25.7 mm (1.0 in)	44 years	57 of 100 (Notable)
17 July 1975	Sao Caetano, BR	monthly rain	82.3 mm (3.2 in)	31.9 mm (1.3 in)	4 years	57 of 100 (Notable)
17 July 1975	Frei Paulo, BR	daily rain	46.0 mm (1.8 in)	32.2 mm (1.3 in)	33 years	56 of 100 (Notable)
17 July 1975	Hidrolandia (Batoque), BR	monthly rain	62.0 mm (2.4 in)	40.0 mm (1.6 in)	4 years	55 of 100 (Notable)
17 July 1975	Sao Bento Do Una, BR	monthly rain	89.2 mm (3.5 in)	31.0 mm (1.2 in)	3 years	55 of 100 (Notable)
17 July 1975	Ribeira Do Pombal (Pombal), BR	monthly rain	75.0 mm (3.0 in)	43.0 mm (1.7 in)	8 years	55 of 100 (Notable)
17 July 1975	Quixeramobim, BR	daily rain	33.8 mm (1.3 in)	32.0 mm (1.3 in)	52 years	54 of 100 (Notable)
17 July 1975	Umari, BR	daily rain	49.0 mm (1.9 in)	26.6 mm (1.0 in)	52 years	54 of 100 (Notable)
17 July 1975	Berezovo, RU	daily rain	41.6 mm (1.6 in)	29.2 mm (1.1 in)	33 years	54 of 100 (Notable)
17 July 1975	Myton, US	monthly rain	35.3 mm (1.4 in)	12.2 mm (0.5 in)	43 years	54 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

1793 to 1975

Records set or tied on this calendar date in each year from 1793 to 1975. 1975 had 775 records.

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

Records on 07-17 in each year
Year	Records
1793	1
1798	1
1799	1
1801	2
1802	1
1821	1
1827	1
1833	1
1840	1
1842	1
1845	2
1852	1
1862	1
1863	1
1865	2
1866	1
1871	1
1874	1
1875	2
1877	1
1880	1
1881	2
1882	2
1883	5
1884	1
1887	1
1888	2
1889	4
1890	4
1892	5
1893	3
1894	4
1895	1
1896	3
1897	1
1898	2
1899	4
1900	4
1901	6
1902	6
1903	13
1904	4
1905	9
1906	13
1907	12
1908	32
1909	16
1910	8
1911	52
1912	13
1913	26
1914	67
1915	71
1916	27
1917	62
1918	41
1919	45
1920	50
1921	120
1922	206
1923	105
1924	165
1925	275
1926	251
1927	118
1928	116
1929	154
1930	366
1931	492
1932	293
1933	216
1934	438
1935	245
1936	815
1937	313
1938	303
1939	540
1940	319
1941	386
1942	522
1943	321
1944	236
1945	681
1946	523
1947	505
1948	278
1949	405
1950	645
1951	356
1952	772
1953	557
1954	517
1955	512
1956	608
1957	298
1958	693
1959	631
1960	324
1961	408
1962	421
1963	223
1964	481
1965	753
1966	454
1967	965
1968	707
1969	741
1970	486
1971	790
1972	634
1973	680
1974	691
1975	775
1976	1,041
1977	764
1978	794
1979	642
1980	1,137
1981	628
1982	850
1983	1,120
1984	875
1985	483
1986	1,214
1987	1,388
1988	1,239
1989	1,289
1990	953
1991	763
1992	1,055
1993	956
1994	631
1995	917
1996	911
1997	816
1998	1,031
1999	925
2000	1,166
2001	916
2002	995
2003	1,396
2004	908
2005	1,184
2006	1,509
2007	1,218
2008	508
2009	1,218
2010	965
2011	1,101
2012	934
2013	819
2014	1,456
2015	831
2016	679
2017	398
2018	750
2019	477
2020	515
2021	625
2022	791
2023	1,060
2024	814
2025	966
2026	860

Download the Data

Data for records on 1975-07-17: 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 2026-10-18. Last revised 18 October 2026 (2026-10-18).

Margin	Records
0 to 10	463
10 to 20	72
20 to 30	34
30 to 40	26
40 to 50	14
50 to 60	3
60 to 70	4
70 to 80	1