Weather Records on 21 July 1966

626 weather records were set or tied worldwide on 21 July 1966. Highest significance: Venukonda, IN.

Key Facts for 21 July 1966

On 21 July 1966, 626 weather records were set or tied at long-record stations worldwide.
75 were record highs and 341 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 10 monthly and 615 daily.
Venukonda set a daily record precipitation of 90.9 mm (3.6 in) on 21 July 1966.
Across 159 earlier years (1794 to 2026) the same calendar date averaged 466 records.

Record Map

626 stations

626 station records on 21 July 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 July 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Venukonda	India	Record daily precipitation	90.9 mm (3.6 in)	53 of 100 (Notable)
Chama	United States	Record daily precipitation	47.2 mm (1.9 in)	49 of 100 (Notable)
Lake Carmody	Australia	Record daily precipitation	28.7 mm (1.1 in)	47 of 100 (Notable)
Tonto Springs Rs 4 W	United States	Record daily precipitation	85.3 mm (3.4 in)	47 of 100 (Notable)
Berlin-Dahlem	Germany	Record daily precipitation	38.8 mm (1.5 in)	46 of 100 (Notable)
Homberg/Ohm	Germany	Record daily precipitation	50.0 mm (2.0 in)	44 of 100 (Notable)
Pecs Pogany	Hungary	Record daily precipitation	43.0 mm (1.7 in)	44 of 100 (Notable)
Carnamah	Australia	Record daily precipitation	25.7 mm (1.0 in)	43 of 100 (Notable)
Searcy	United States	Record daily precipitation	71.1 mm (2.8 in)	43 of 100 (Notable)
Ashley	United States	Record daily precipitation	59.9 mm (2.4 in)	43 of 100 (Notable)
Geneva	United States	Record daily precipitation	65.0 mm (2.6 in)	41 of 100 (Notable)
Vale	United States	Record daily precipitation	33.8 mm (1.3 in)	41 of 100 (Notable)
Sable Island	Canada	Record daily precipitation	38.6 mm (1.5 in)	39 of 100 (Notable)
Natchitoches	United States	Record daily precipitation	42.9 mm (1.7 in)	37 of 100 (Notable)
Grand Forks UNIV (NWS)	United States	Record daily precipitation	51.6 mm (2.0 in)	37 of 100 (Notable)
Bonfim	Brazil	Record daily precipitation	51.3 mm (2.0 in)	36 of 100 (Notable)
Brantley	United States	Record daily precipitation	63.0 mm (2.5 in)	36 of 100 (Notable)
Ischim Amsg	Russia	Record daily precipitation	36.9 mm (1.5 in)	35 of 100 (Notable)
Leoti	United States	Record daily precipitation	61.0 mm (2.4 in)	35 of 100 (Notable)
Port Aux Basques	Canada	Record daily precipitation	31.5 mm (1.2 in)	34 of 100 (Routine)
Sprague	Canada	Record daily precipitation	35.1 mm (1.4 in)	33 of 100 (Routine)
Matar	India	Record daily precipitation	62.0 mm (2.4 in)	33 of 100 (Routine)
Okay	United States	Record daily precipitation	81.3 mm (3.2 in)	33 of 100 (Routine)
Rosedale	United States	Record daily precipitation	52.3 mm (2.1 in)	33 of 100 (Routine)
Astrakan	Russia	Record high maximum temperature	37.9 C (100.2 F)	32 of 100 (Routine)
New Iberia AP - Acadiana Rgnl	United States	Record daily precipitation	38.1 mm (1.5 in)	32 of 100 (Routine)
Kitlane	Australia	Record daily precipitation	30.5 mm (1.2 in)	31 of 100 (Routine)
Doodenanning	Australia	Record daily precipitation	27.7 mm (1.1 in)	31 of 100 (Routine)
Borzja	Russia	Record low minimum temperature	3.0 C (37.4 F)	31 of 100 (Routine)
Lyman	United States	Record daily precipitation	37.1 mm (1.5 in)	31 of 100 (Routine)
Bernalillo	United States	Record high minimum temperature	18.9 C (66.0 F)	31 of 100 (Routine)
Faith	United States	Record daily precipitation	54.1 mm (2.1 in)	31 of 100 (Routine)
Wheatland 4N	United States	Record daily precipitation	26.7 mm (1.1 in)	31 of 100 (Routine)
Krakmo	Norway	Record daily precipitation	26.0 mm (1.0 in)	30 of 100 (Routine)
Caledonia	United States	Record low minimum temperature	8.3 C (46.9 F)	30 of 100 (Routine)
New Canton	United States	Record low minimum temperature	10.0 C (50.0 F)	30 of 100 (Routine)
Neukirchen-Hauptschwenda	Germany	Record daily precipitation	31.8 mm (1.3 in)	29 of 100 (Routine)
Tenali	India	Record daily precipitation	78.7 mm (3.1 in)	29 of 100 (Routine)
Santa Paula	United States	Record low minimum temperature	7.8 C (46.0 F)	29 of 100 (Routine)
Moscow U of I	United States	Record low minimum temperature	3.3 C (37.9 F)	29 of 100 (Routine)
Bellefontaine	United States	Record low minimum temperature	8.3 C (46.9 F)	29 of 100 (Routine)
Webster Springs	United States	Record low minimum temperature	7.2 C (45.0 F)	29 of 100 (Routine)
Gurjala(Gurujala)	India	Record daily precipitation	83.8 mm (3.3 in)	28 of 100 (Routine)
Elba	United States	Record daily precipitation	65.3 mm (2.6 in)	28 of 100 (Routine)
Selma	United States	Record daily precipitation	64.0 mm (2.5 in)	28 of 100 (Routine)
Norton 9SSE	United States	Record low maximum temperature	24.4 C (75.9 F)	28 of 100 (Routine)
Weston	United States	Record low minimum temperature	6.1 C (43.0 F)	28 of 100 (Routine)
Redrock 1 NNE	United States	Record daily precipitation	39.4 mm (1.6 in)	28 of 100 (Routine)
Beulah	United States	Record low minimum temperature	6.7 C (44.1 F)	28 of 100 (Routine)
Prairie du Sac 2 N	United States	Record low minimum temperature	8.3 C (46.9 F)	28 of 100 (Routine)
Concordia ASOS	United States	Record low maximum temperature	24.4 C (75.9 F)	28 of 100 (Routine)
Siwa	Egypt	Record high minimum temperature	27.2 C (81.0 F)	27 of 100 (Routine)
Silchar	India	Record daily precipitation	106.0 mm (4.2 in)	27 of 100 (Routine)
Mundagod	India	Record daily precipitation	62.2 mm (2.4 in)	27 of 100 (Routine)
Nerchinskij Zavod	Russia	Record low minimum temperature	3.1 C (37.6 F)	27 of 100 (Routine)
Greenville	United States	Record daily precipitation	62.5 mm (2.5 in)	27 of 100 (Routine)
Canon City	United States	Record daily precipitation	31.8 mm (1.3 in)	27 of 100 (Routine)
Morrison	United States	Record low minimum temperature	8.9 C (48.0 F)	27 of 100 (Routine)
Watseka Public Works	United States	Record low minimum temperature	9.4 C (48.9 F)	27 of 100 (Routine)
Wakeeney	United States	Record low maximum temperature	23.9 C (75.0 F)	27 of 100 (Routine)

Counts by Type and Timescale

626 records

Records set or tied on 21 July 1966 by type: Highest daily maximum 19, Lowest daily maximum 81, Highest daily minimum 56, Lowest daily minimum 260, Heaviest daily rainfall 210.

Records on 21 July 1966 by type
Record type	Records
Highest daily maximum	19
Lowest daily maximum	81
Highest daily minimum	56
Lowest daily minimum	260
Heaviest daily rainfall	210
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 July 1966 by timescale: all-time 1, monthly 10, daily 615.

How Much Records Were Beaten By

459 broken records

Margins by which the 459 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 59.9. Ties are not counted.

Top 20 by Significance

21 July 1966

Top 20 records on 21 July 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 1966	Venukonda, IN	daily rain	90.9 mm (3.6 in)	59.9 mm (2.4 in)	24 years	53 of 100 (Notable)
21 July 1966	Chama, US	daily rain	47.2 mm (1.9 in)	21.8 mm (0.9 in)	36 years	49 of 100 (Notable)
21 July 1966	Lake Carmody, AU	daily rain	28.7 mm (1.1 in)	14.0 mm (0.6 in)	55 years	47 of 100 (Notable)
21 July 1966	Tonto Springs Rs 4 W, US	monthly rain	85.3 mm (3.4 in)	18.2 mm (0.7 in)	43 years	47 of 100 (Notable)
21 July 1966	Berlin-Dahlem, DE	daily rain	38.8 mm (1.5 in)	9.1 mm (0.36 in)	83 years	46 of 100 (Notable)
21 July 1966	Homberg/Ohm, DE	daily rain	50.0 mm (2.0 in)	35.1 mm (1.4 in)	5 years	44 of 100 (Notable)
21 July 1966	Pecs Pogany, HU	daily rain	43.0 mm (1.7 in)	20.3 mm (0.8 in)	47 years	44 of 100 (Notable)
21 July 1966	Carnamah, AU	daily rain	25.7 mm (1.0 in)	12.5 mm (0.5 in)	56 years	43 of 100 (Notable)
21 July 1966	Searcy, US	daily rain	71.1 mm (2.8 in)	42.1 mm (1.7 in)	20 years	43 of 100 (Notable)
21 July 1966	Ashley, US	daily rain	59.9 mm (2.4 in)	18.5 mm (0.7 in)	68 years	43 of 100 (Notable)
21 July 1966	Geneva, US	daily rain	65.0 mm (2.6 in)	39.1 mm (1.5 in)	12 years	41 of 100 (Notable)
21 July 1966	Vale, US	daily rain	33.8 mm (1.3 in)	28.2 mm (1.1 in)	44 years	41 of 100 (Notable)
21 July 1966	Sable Island, CA	daily rain	38.6 mm (1.5 in)	13.2 mm (0.5 in)	67 years	39 of 100 (Notable)
21 July 1966	Natchitoches, US	daily rain	42.9 mm (1.7 in)	15.0 mm (0.6 in)	71 years	37 of 100 (Notable)
21 July 1966	Grand Forks UNIV (NWS), US	daily rain	51.6 mm (2.0 in)	17.6 mm (0.7 in)	52 years	37 of 100 (Notable)
21 July 1966	Bonfim, BR	daily rain	51.3 mm (2.0 in)	22.0 mm (0.9 in)	20 years	36 of 100 (Notable)
21 July 1966	Brantley, US	daily rain	63.0 mm (2.5 in)	35.3 mm (1.4 in)	32 years	36 of 100 (Notable)
21 July 1966	Ischim Amsg, RU	daily rain	36.9 mm (1.5 in)	23.4 mm (0.9 in)	0 years	35 of 100 (Notable)
21 July 1966	Leoti, US	daily rain	61.0 mm (2.4 in)	28.0 mm (1.1 in)	8 years	35 of 100 (Notable)
21 July 1966	Port Aux Basques, CA	daily rain	31.5 mm (1.2 in)	14.7 mm (0.6 in)	56 years	34 of 100 (Routine)

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 1966

Records set or tied on this calendar date in each year from 1794 to 1966. 1966 had 626 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 1966-07-21: 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).