Weather Records on 11 July 1966

503 weather records were set or tied worldwide on 11 July 1966. Highest significance: Umari, BR.

Key Facts for 11 July 1966

On 11 July 1966, 503 weather records were set or tied at long-record stations worldwide.
271 were record highs and 58 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 7 monthly and 494 daily.
Umari set a daily record precipitation of 36.1 mm (1.4 in) on 11 July 1966.
Across 167 earlier years (1813 to 2026) the same calendar date averaged 423 records.

Record Map

503 stations

503 station records on 11 July 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 July 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Umari	Brazil	Record daily precipitation	36.1 mm (1.4 in)	57 of 100 (Notable)
Chilton	United States	Record daily precipitation	44.5 mm (1.8 in)	54 of 100 (Notable)
Madhugiri	India	Record daily precipitation	69.1 mm (2.7 in)	53 of 100 (Notable)
Sheboygan	United States	Record daily precipitation	51.1 mm (2.0 in)	52 of 100 (Notable)
Antenor Navarro	Brazil	Record daily precipitation	30.5 mm (1.2 in)	48 of 100 (Notable)
Jejuri	India	Record daily precipitation	86.0 mm (3.4 in)	48 of 100 (Notable)
Taipu	Brazil	Record daily precipitation	84.2 mm (3.3 in)	46 of 100 (Notable)
Neillsville 3ESE	United States	Record daily precipitation	54.6 mm (2.1 in)	46 of 100 (Notable)
Marshfield Exp Farm	United States	Record daily precipitation	48.8 mm (1.9 in)	41 of 100 (Notable)
Green Bay	United States	Record daily precipitation	47.8 mm (1.9 in)	41 of 100 (Notable)
Murray Island	Australia	Record daily precipitation	25.7 mm (1.0 in)	39 of 100 (Notable)
Fazenda Timbauba	Brazil	Record daily precipitation	34.6 mm (1.4 in)	38 of 100 (Notable)
Watertown Rgnl AP	United States	Record daily precipitation	32.0 mm (1.3 in)	38 of 100 (Notable)
Caledonia	United States	Record daily precipitation	37.6 mm (1.5 in)	37 of 100 (Notable)
Serra Caiada	Brazil	Record daily precipitation	25.0 mm (1.0 in)	36 of 100 (Notable)
Dum Dooma /Sookerating Aab	India	Record daily precipitation	102.4 mm (4.0 in)	36 of 100 (Notable)
Amherst	United States	Record daily precipitation	41.9 mm (1.6 in)	36 of 100 (Notable)
Port Washington	United States	Record daily precipitation	37.8 mm (1.5 in)	36 of 100 (Notable)
Pelee Island	Canada	Record daily precipitation	82.3 mm (3.2 in)	35 of 100 (Notable)
Centerville Ph	United States	Record low maximum temperature	25.0 C (77.0 F)	34 of 100 (Routine)
Springview 2NW	United States	Record high minimum temperature	25.6 C (78.1 F)	33 of 100 (Routine)
Manitowoc	United States	Record daily precipitation	48.8 mm (1.9 in)	33 of 100 (Routine)
Babuskin	Russia	Record low maximum temperature	10.1 C (50.2 F)	32 of 100 (Routine)
Sveg	Sweden	Record daily precipitation	27.9 mm (1.1 in)	32 of 100 (Routine)
Kalyandrug	India	Record daily precipitation	35.0 mm (1.4 in)	31 of 100 (Routine)
Narjan Mar	Russia	Record high minimum temperature	20.5 C (68.9 F)	31 of 100 (Routine)
Springview 2NW	United States	Record high maximum temperature	41.1 C (106.0 F)	31 of 100 (Routine)
Huron Rgnl AP	United States	Record high maximum temperature	43.3 C (109.9 F)	31 of 100 (Routine)
Parner	India	Record daily precipitation	100.0 mm (3.9 in)	30 of 100 (Routine)
Middletown 2 NW	United States	Record high maximum temperature	31.7 C (89.1 F)	30 of 100 (Routine)
Bedford	United States	Record high maximum temperature	36.7 C (98.1 F)	30 of 100 (Routine)
Barstow	United States	Record low minimum temperature	11.7 C (53.1 F)	29 of 100 (Routine)
Petoskey	United States	Record high minimum temperature	21.1 C (70.0 F)	29 of 100 (Routine)
Chasm Falls	United States	Record daily precipitation	41.7 mm (1.6 in)	29 of 100 (Routine)
Highmore	United States	Record high maximum temperature	42.8 C (109.0 F)	29 of 100 (Routine)
Brillion	United States	Record daily precipitation	29.2 mm (1.1 in)	29 of 100 (Routine)
Parli	India	Record daily precipitation	90.0 mm (3.5 in)	28 of 100 (Routine)
Citronelle	United States	Record high maximum temperature	36.7 C (98.1 F)	28 of 100 (Routine)
Romney 1 SW	United States	Record high minimum temperature	21.7 C (71.1 F)	28 of 100 (Routine)
Rantoul	United States	Record high maximum temperature	37.8 C (100.0 F)	28 of 100 (Routine)
Pedra Branca	Brazil	Record daily precipitation	34.3 mm (1.4 in)	27 of 100 (Routine)
Karjat	India	Record daily precipitation	33.2 mm (1.3 in)	27 of 100 (Routine)
Geneseo	United States	Record high maximum temperature	36.1 C (97.0 F)	27 of 100 (Routine)
Tuscola	United States	Record high maximum temperature	38.3 C (100.9 F)	27 of 100 (Routine)
Willow Sprg Radio Kuku	United States	Record high maximum temperature	38.9 C (102.0 F)	27 of 100 (Routine)
Ft Stanton	United States	Record low minimum temperature	7.8 C (46.0 F)	27 of 100 (Routine)
Chilton	United States	Record high maximum temperature	36.1 C (97.0 F)	27 of 100 (Routine)
Atlantic City Marina	United States	Record high minimum temperature	24.4 C (75.9 F)	27 of 100 (Routine)
Kallatty	India	Record daily precipitation	50.0 mm (2.0 in)	26 of 100 (Routine)
Sattur	India	Record daily precipitation	39.0 mm (1.5 in)	26 of 100 (Routine)
Newark Ag Farm	United States	Record high maximum temperature	35.0 C (95.0 F)	26 of 100 (Routine)
Salvisa Lock 6	United States	Record daily precipitation	27.4 mm (1.1 in)	26 of 100 (Routine)
Butte	United States	Record high minimum temperature	26.7 C (80.1 F)	26 of 100 (Routine)
Lexington	United States	Record high maximum temperature	37.2 C (99.0 F)	26 of 100 (Routine)
Bedford	United States	Record high minimum temperature	23.9 C (75.0 F)	26 of 100 (Routine)
Hatfield	United States	Record daily precipitation	46.5 mm (1.8 in)	26 of 100 (Routine)
Khajauli	India	Record daily precipitation	95.0 mm (3.7 in)	25 of 100 (Routine)
Assobani	India	Record daily precipitation	82.6 mm (3.3 in)	25 of 100 (Routine)
Chandor	India	Record daily precipitation	54.6 mm (2.1 in)	25 of 100 (Routine)
Moore Haven Lock 1	United States	Record low maximum temperature	27.8 C (82.0 F)	25 of 100 (Routine)

Counts by Type and Timescale

503 records

Records set or tied on 11 July 1966 by type: Highest daily maximum 100, Lowest daily maximum 39, Highest daily minimum 171, Lowest daily minimum 19, Heaviest daily rainfall 174.

Records on 11 July 1966 by type
Record type	Records
Highest daily maximum	100
Lowest daily maximum	39
Highest daily minimum	171
Lowest daily minimum	19
Heaviest daily rainfall	174
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 11 July 1966 by timescale: all-time 2, monthly 7, daily 494.

How Much Records Were Beaten By

364 broken records

Margins by which the 364 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 47.9. Ties are not counted.

Top 20 by Significance

11 July 1966

Top 20 records on 11 July 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 July 1966	Umari, BR	daily rain	36.1 mm (1.4 in)	33.8 mm (1.3 in)	41 years	57 of 100 (Notable)
11 July 1966	Chilton, US	daily rain	44.5 mm (1.8 in)	36.9 mm (1.5 in)	59 years	54 of 100 (Notable)
11 July 1966	Madhugiri, IN	daily rain	69.1 mm (2.7 in)	35.1 mm (1.4 in)	53 years	53 of 100 (Notable)
11 July 1966	Sheboygan, US	daily rain	51.1 mm (2.0 in)	31.8 mm (1.3 in)	59 years	52 of 100 (Notable)
11 July 1966	Antenor Navarro, BR	daily rain	30.5 mm (1.2 in)	28.9 mm (1.1 in)	44 years	48 of 100 (Notable)
11 July 1966	Jejuri, IN	daily rain	86.0 mm (3.4 in)	47.9 mm (1.9 in)	8 years	48 of 100 (Notable)
11 July 1966	Taipu, BR	monthly rain	84.2 mm (3.3 in)	18.2 mm (0.7 in)	44 years	46 of 100 (Notable)
11 July 1966	Neillsville 3ESE, US	daily rain	54.6 mm (2.1 in)	29.2 mm (1.1 in)	56 years	46 of 100 (Notable)
11 July 1966	Marshfield Exp Farm, US	daily rain	48.8 mm (1.9 in)	26.2 mm (1.0 in)	48 years	41 of 100 (Notable)
11 July 1966	Green Bay, US	daily rain	47.8 mm (1.9 in)	18.8 mm (0.7 in)	52 years	41 of 100 (Notable)
11 July 1966	Murray Island, AU	daily rain	25.7 mm (1.0 in)	12.7 mm (0.5 in)	51 years	39 of 100 (Notable)
11 July 1966	Fazenda Timbauba, BR	daily rain	34.6 mm (1.4 in)	34.1 mm (1.3 in)	9 years	38 of 100 (Notable)
11 July 1966	Watertown Rgnl AP, US	daily rain	32.0 mm (1.3 in)	19.3 mm (0.8 in)	56 years	38 of 100 (Notable)
11 July 1966	Caledonia, US	daily rain	37.6 mm (1.5 in)	27.4 mm (1.1 in)	55 years	37 of 100 (Notable)
11 July 1966	Serra Caiada, BR	daily rain	25.0 mm (1.0 in)	18.5 mm (0.7 in)	44 years	36 of 100 (Notable)
11 July 1966	Dum Dooma /Sookerating Aab, IN	daily rain	102.4 mm (4.0 in)	35.1 mm (1.4 in)	48 years	36 of 100 (Notable)
11 July 1966	Amherst, US	daily rain	41.9 mm (1.6 in)	17.8 mm (0.7 in)	48 years	36 of 100 (Notable)
11 July 1966	Port Washington, US	daily rain	37.8 mm (1.5 in)	22.3 mm (0.9 in)	39 years	36 of 100 (Notable)
11 July 1966	Pelee Island, CA	daily rain	82.3 mm (3.2 in)	30.5 mm (1.2 in)	20 years	35 of 100 (Notable)
11 July 1966	Centerville Ph, US	daily low max	25.0 C (77.0 F)	5.6 C (10.1 F)	52 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

1813 to 1966

Records set or tied on this calendar date in each year from 1813 to 1966. 1966 had 503 records.

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

Records on 07-11 in each year
Year	Records
1813	2
1815	1
1816	1
1821	1
1843	1
1845	1
1846	1
1847	2
1849	1
1850	2
1851	2
1856	1
1858	1
1859	1
1860	1
1862	1
1863	1
1866	1
1868	1
1869	2
1870	2
1871	1
1873	1
1874	3
1875	1
1876	3
1878	2
1879	3
1882	2
1886	4
1887	1
1888	3
1889	9
1890	5
1891	4
1894	12
1895	3
1896	2
1897	2
1898	4
1899	7
1900	4
1901	4
1902	3
1903	7
1904	14
1905	16
1906	17
1907	23
1908	36
1909	16
1910	24
1911	87
1912	21
1913	36
1914	45
1915	21
1916	29
1917	121
1918	18
1919	37
1920	22
1921	179
1922	56
1923	107
1924	100
1925	425
1926	215
1927	106
1928	91
1929	121
1930	572
1931	206
1932	291
1933	705
1934	413
1935	387
1936	1,268
1937	405
1938	244
1939	496
1940	296
1941	517
1942	734
1943	369
1944	702
1945	978
1946	275
1947	388
1948	313
1949	286
1950	619
1951	849
1952	519
1953	554
1954	758
1955	343
1956	534
1957	495
1958	519
1959	523
1960	373
1961	731
1962	536
1963	706
1964	482
1965	406
1966	503
1967	368
1968	482
1969	569
1970	404
1971	547
1972	486
1973	658
1974	858
1975	1,107
1976	734
1977	537
1978	829
1979	519
1980	1,002
1981	663
1982	642
1983	984
1984	1,174
1985	607
1986	691
1987	1,030
1988	973
1989	832
1990	1,010
1991	1,038
1992	926
1993	1,227
1994	839
1995	1,037
1996	1,283
1997	686
1998	1,235
1999	1,175
2000	862
2001	874
2002	1,438
2003	1,033
2004	658
2005	1,105
2006	809
2007	962
2008	759
2009	801
2010	1,210
2011	1,016
2012	1,053
2013	553
2014	540
2015	766
2016	1,035
2017	589
2018	439
2019	606
2020	814
2021	935
2022	581
2023	873
2024	1,064
2025	440
2026	705

Download the Data

Data for records on 1966-07-11: 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).

Histogram of margins by which records were beaten on 11 July 1966
Margin	Records
0 to 10	303
10 to 20	40
20 to 30	13
30 to 40	7
40 to 50	1