Weather Records on 21 July 1975

380 weather records were set or tied worldwide on 21 July 1975. Highest significance: Pearl, US.

Key Facts for 21 July 1975

On 21 July 1975, 380 weather records were set or tied at long-record stations worldwide.
97 were record highs and 76 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 7 monthly and 372 daily.
Pearl set an all-time record daily precipitation of 267.5 mm (10.5 in) on 21 July 1975.
Across 159 earlier years (1794 to 2026) the same calendar date averaged 467 records.

Record Map

380 stations

380 station records on 21 July 1975 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 July 1975: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pearl	United States	Record daily precipitation	267.5 mm (10.5 in)	68 of 100 (Major)
Brockville	Canada	Record daily precipitation	63.2 mm (2.5 in)	66 of 100 (Major)
Waianae 798	United States	Record daily precipitation	31.0 mm (1.2 in)	65 of 100 (Major)
Toccoa	United States	Record daily precipitation	68.8 mm (2.7 in)	61 of 100 (Major)
Iratinga (Sao Miguel)	Brazil	Record daily precipitation	49.9 mm (2.0 in)	59 of 100 (Notable)
Zhizdra	Russia	Record daily precipitation	58.2 mm (2.3 in)	59 of 100 (Notable)
Somerville 4 NW	United States	Record daily precipitation	72.1 mm (2.8 in)	57 of 100 (Notable)
Cernuska	Russia	Record daily precipitation	90.4 mm (3.6 in)	56 of 100 (Notable)
Amherst	United States	Record daily precipitation	69.6 mm (2.7 in)	53 of 100 (Notable)
Snyder	United States	Record daily precipitation	92.2 mm (3.6 in)	50 of 100 (Notable)
Bainbridge	United States	Record daily precipitation	64.5 mm (2.5 in)	49 of 100 (Notable)
Sterling	United States	Record daily precipitation	35.8 mm (1.4 in)	48 of 100 (Notable)
Hightstown 2 W	United States	Record daily precipitation	113.8 mm (4.5 in)	47 of 100 (Notable)
Hobbs	United States	Record daily precipitation	72.9 mm (2.9 in)	47 of 100 (Notable)
Mt Wx	United States	Record daily precipitation	65.0 mm (2.6 in)	47 of 100 (Notable)
Khibiny	Russia	Record daily precipitation	28.2 mm (1.1 in)	45 of 100 (Notable)
Millinocket	United States	Record daily precipitation	40.1 mm (1.6 in)	45 of 100 (Notable)
Crossroads 2	United States	Record daily precipitation	52.1 mm (2.1 in)	45 of 100 (Notable)
Kamen-Na-Obi	Russia	Record daily precipitation	32.9 mm (1.3 in)	44 of 100 (Notable)
Oceanside Marina	United States	Record low minimum temperature	9.4 C (48.9 F)	41 of 100 (Notable)
Carlsbad	United States	Record daily precipitation	53.3 mm (2.1 in)	41 of 100 (Notable)
Red Rvr	United States	Record daily precipitation	30.7 mm (1.2 in)	41 of 100 (Notable)
Fullerton	United States	Record daily precipitation	31.5 mm (1.2 in)	40 of 100 (Notable)
W Otis	United States	Record daily precipitation	50.8 mm (2.0 in)	39 of 100 (Notable)
Ft Gaines	United States	Record high minimum temperature	26.1 C (79.0 F)	38 of 100 (Notable)
Knapp 2 SW	United States	Record daily precipitation	57.2 mm (2.3 in)	38 of 100 (Notable)
Plainfield	United States	Record daily precipitation	53.3 mm (2.1 in)	36 of 100 (Notable)
Causapscal	Canada	Record daily precipitation	45.5 mm (1.8 in)	35 of 100 (Notable)
Elwood 8 S	United States	Record daily precipitation	68.6 mm (2.7 in)	35 of 100 (Notable)
Spier Falls	United States	Record daily precipitation	39.6 mm (1.6 in)	34 of 100 (Routine)
Marathon	United States	Record daily precipitation	36.1 mm (1.4 in)	34 of 100 (Routine)
Rutland	United States	Record daily precipitation	43.2 mm (1.7 in)	34 of 100 (Routine)
Moncton	Canada	Record high minimum temperature	21.1 C (70.0 F)	33 of 100 (Routine)
Freehold-Marlboro	United States	Record daily precipitation	79.0 mm (3.1 in)	33 of 100 (Routine)
Zolotonosha	Ukraine	Record daily precipitation	36.0 mm (1.4 in)	32 of 100 (Routine)
Sao Goncalo Dos Campos	Brazil	Record daily precipitation	25.9 mm (1.0 in)	31 of 100 (Routine)
Witelsbos (Bos)	South Africa	Record daily precipitation	37.0 mm (1.5 in)	31 of 100 (Routine)
South Edwards 1 E	United States	Record daily precipitation	50.8 mm (2.0 in)	31 of 100 (Routine)
Reimlingen	Germany	Record daily precipitation	30.5 mm (1.2 in)	30 of 100 (Routine)
Zlatoust	Russia	Record daily precipitation	35.2 mm (1.4 in)	30 of 100 (Routine)
Lubny	Ukraine	Record daily precipitation	35.1 mm (1.4 in)	30 of 100 (Routine)
Douglas	United States	Record daily precipitation	68.1 mm (2.7 in)	30 of 100 (Routine)
Houlton	United States	Record high minimum temperature	21.1 C (70.0 F)	30 of 100 (Routine)
Annapolis US Naval Aca	United States	Record daily precipitation	28.2 mm (1.1 in)	30 of 100 (Routine)
Boylston	United States	Record daily precipitation	34.3 mm (1.4 in)	30 of 100 (Routine)
Baldwinsville	United States	Record daily precipitation	36.8 mm (1.4 in)	30 of 100 (Routine)
Juarez	Mexico	Record low maximum temperature	27.8 C (82.0 F)	29 of 100 (Routine)
Lottering (Bos)	South Africa	Record daily precipitation	33.0 mm (1.3 in)	29 of 100 (Routine)
Albany 3 SE	United States	Record low maximum temperature	27.8 C (82.0 F)	29 of 100 (Routine)
Vincennes 4 E	United States	Record daily precipitation	62.5 mm (2.5 in)	29 of 100 (Routine)
Stockbridge	United States	Record daily precipitation	42.7 mm (1.7 in)	29 of 100 (Routine)
Whitehall	United States	Record daily precipitation	40.9 mm (1.6 in)	29 of 100 (Routine)
Moorleah (Preolenna Road)	Australia	Record daily precipitation	30.0 mm (1.2 in)	28 of 100 (Routine)
Woodstock	Canada	Record high minimum temperature	21.1 C (70.0 F)	28 of 100 (Routine)
Beaver City	United States	Record daily precipitation	37.8 mm (1.5 in)	28 of 100 (Routine)
Jal	United States	Record daily precipitation	28.7 mm (1.1 in)	28 of 100 (Routine)
Northville	United States	Record daily precipitation	29.7 mm (1.2 in)	28 of 100 (Routine)
Tupper Lake Sunmount	United States	Record daily precipitation	41.4 mm (1.6 in)	28 of 100 (Routine)
Lenorah	United States	Record daily precipitation	55.1 mm (2.2 in)	28 of 100 (Routine)
Ljubljana Bezigrad	Slovenia	Record daily precipitation	28.3 mm (1.1 in)	27 of 100 (Routine)

Counts by Type and Timescale

380 records

Records set or tied on 21 July 1975 by type: Highest daily maximum 36, Lowest daily maximum 36, Highest daily minimum 61, Lowest daily minimum 40, Heaviest daily rainfall 207.

Records on 21 July 1975 by type
Record type	Records
Highest daily maximum	36
Lowest daily maximum	36
Highest daily minimum	61
Lowest daily minimum	40
Heaviest daily rainfall	207
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 July 1975 by timescale: all-time 1, monthly 7, daily 372.

How Much Records Were Beaten By

294 broken records

Margins by which the 294 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 144.3. Ties are not counted.

Top 20 by Significance

21 July 1975

Top 20 records on 21 July 1975 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 1975	Pearl, US	all-time rain	267.5 mm (10.5 in)	144.3 mm (5.7 in)	3 years	68 of 100 (Major)
21 July 1975	Brockville, CA	daily rain	63.2 mm (2.5 in)	44.1 mm (1.7 in)	56 years	66 of 100 (Major)
21 July 1975	Waianae 798, US	daily rain	31.0 mm (1.2 in)	28.0 mm (1.1 in)	60 years	65 of 100 (Major)
21 July 1975	Toccoa, US	daily rain	68.8 mm (2.7 in)	40.9 mm (1.6 in)	80 years	61 of 100 (Major)
21 July 1975	Iratinga (Sao Miguel), BR	daily rain	49.9 mm (2.0 in)	49.8 mm (2.0 in)	49 years	59 of 100 (Notable)
21 July 1975	Zhizdra, RU	daily rain	58.2 mm (2.3 in)	40.5 mm (1.6 in)	40 years	59 of 100 (Notable)
21 July 1975	Somerville 4 NW, US	daily rain	72.1 mm (2.8 in)	38.6 mm (1.5 in)	76 years	57 of 100 (Notable)
21 July 1975	Cernuska, RU	monthly rain	90.4 mm (3.6 in)	38.7 mm (1.5 in)	7 years	56 of 100 (Notable)
21 July 1975	Amherst, US	daily rain	69.6 mm (2.7 in)	27.9 mm (1.1 in)	74 years	53 of 100 (Notable)
21 July 1975	Snyder, US	daily rain	92.2 mm (3.6 in)	47.7 mm (1.9 in)	46 years	50 of 100 (Notable)
21 July 1975	Bainbridge, US	daily rain	64.5 mm (2.5 in)	34.5 mm (1.4 in)	56 years	49 of 100 (Notable)
21 July 1975	Sterling, US	daily rain	35.8 mm (1.4 in)	25.9 mm (1.0 in)	68 years	48 of 100 (Notable)
21 July 1975	Hightstown 2 W, US	monthly rain	113.8 mm (4.5 in)	13.7 mm (0.5 in)	69 years	47 of 100 (Notable)
21 July 1975	Hobbs, US	daily rain	72.9 mm (2.9 in)	35.3 mm (1.4 in)	52 years	47 of 100 (Notable)
21 July 1975	Mt Wx, US	daily rain	65.0 mm (2.6 in)	46.7 mm (1.8 in)	28 years	47 of 100 (Notable)
21 July 1975	Khibiny, RU	daily rain	28.2 mm (1.1 in)	15.3 mm (0.6 in)	38 years	45 of 100 (Notable)
21 July 1975	Millinocket, US	daily rain	40.1 mm (1.6 in)	20.0 mm (0.8 in)	62 years	45 of 100 (Notable)
21 July 1975	Crossroads 2, US	daily rain	52.1 mm (2.1 in)	39.1 mm (1.5 in)	30 years	45 of 100 (Notable)
21 July 1975	Kamen-Na-Obi, RU	daily rain	32.9 mm (1.3 in)	21.8 mm (0.9 in)	36 years	44 of 100 (Notable)
21 July 1975	Oceanside Marina, US	daily low min	9.4 C (48.9 F)	5.0 C (9.0 F)	26 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

1794 to 1975

Records set or tied on this calendar date in each year from 1794 to 1975. 1975 had 380 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 1975-07-21: 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	261
20 to 40	25
40 to 60	7
60 to 80	0
80 to 100	0
100 to 120	0
120 to 140	0
140 to 160	1