Weather Records on 11 August 1966

1,037 weather records were set or tied worldwide on 11 August 1966. Highest significance: Pittsworth, AU.

Key Facts for 11 August 1966

On 11 August 1966, 1,037 weather records were set or tied at long-record stations worldwide.
59 were record highs and 262 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 20 monthly and 1,017 daily.
Pittsworth set a daily record precipitation of 46.5 mm (1.8 in) on 11 August 1966.
Across 161 earlier years (1793 to 2026) the same calendar date averaged 457 records.

Record Map

1,037 stations

1,037 station records on 11 August 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 August 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pittsworth	Australia	Record daily precipitation	46.5 mm (1.8 in)	66 of 100 (Major)
Walterhall	Australia	Record daily precipitation	38.6 mm (1.5 in)	62 of 100 (Major)
Meningie	Australia	Record daily precipitation	39.4 mm (1.6 in)	61 of 100 (Major)
Moonmera	Australia	Record daily precipitation	38.6 mm (1.5 in)	61 of 100 (Major)
Childers Post Office	Australia	Record daily precipitation	88.4 mm (3.5 in)	56 of 100 (Notable)
Maryland	Australia	Record daily precipitation	45.0 mm (1.8 in)	56 of 100 (Notable)
Carnegie 5 NE	United States	Record daily precipitation	63.5 mm (2.5 in)	56 of 100 (Notable)
Old Koreelah (White Swamp (Ede	Australia	Record daily precipitation	69.9 mm (2.8 in)	55 of 100 (Notable)
Stanwell Post Office	Australia	Record daily precipitation	32.0 mm (1.3 in)	54 of 100 (Notable)
Cordalba Store	Australia	Record daily precipitation	84.8 mm (3.3 in)	53 of 100 (Notable)
Custodio	Brazil	Record daily precipitation	68.0 mm (2.7 in)	53 of 100 (Notable)
Palen Creek Correctional	Australia	Record daily precipitation	52.8 mm (2.1 in)	51 of 100 (Notable)
Balgownie West	Australia	Record daily precipitation	44.2 mm (1.7 in)	51 of 100 (Notable)
Lennoxville	Canada	Record daily precipitation	50.8 mm (2.0 in)	51 of 100 (Notable)
Sherbrooke	Canada	Record daily precipitation	48.5 mm (1.9 in)	51 of 100 (Notable)
Frederick	United States	Record daily precipitation	51.1 mm (2.0 in)	51 of 100 (Notable)
Nellore	India	Record daily precipitation	77.6 mm (3.1 in)	50 of 100 (Notable)
Back Plains	Australia	Record daily precipitation	39.4 mm (1.6 in)	49 of 100 (Notable)
Dungowan Station	Australia	Record daily precipitation	41.1 mm (1.6 in)	49 of 100 (Notable)
Corry	United States	Record daily precipitation	50.8 mm (2.0 in)	49 of 100 (Notable)
Murrays Lagoon (Bayside)	Australia	Record daily precipitation	27.9 mm (1.1 in)	48 of 100 (Notable)
Kalpowar Forestry	Australia	Record daily precipitation	31.5 mm (1.2 in)	48 of 100 (Notable)
Matehuala (Smn)	Mexico	Record daily precipitation	66.8 mm (2.6 in)	48 of 100 (Notable)
Wilmington 3 N	United States	Record daily precipitation	62.5 mm (2.5 in)	48 of 100 (Notable)
Calliope Station	Australia	Record daily precipitation	40.6 mm (1.6 in)	47 of 100 (Notable)
Coolatai (Orana)	Australia	Record daily precipitation	33.3 mm (1.3 in)	47 of 100 (Notable)
Woodstock Post Office	Australia	Record daily precipitation	33.5 mm (1.3 in)	46 of 100 (Notable)
Calliope Post Office	Australia	Record daily precipitation	41.7 mm (1.6 in)	46 of 100 (Notable)
Christmas Creek	Australia	Record daily precipitation	45.0 mm (1.8 in)	45 of 100 (Notable)
Culakkurgan	Kazakhstan	Record daily precipitation	26.8 mm (1.1 in)	45 of 100 (Notable)
Jeffersonville	United States	Record daily precipitation	66.3 mm (2.6 in)	45 of 100 (Notable)
Mt Sterling	United States	Record daily precipitation	71.9 mm (2.8 in)	45 of 100 (Notable)
Newkirk 5NE	United States	Record daily precipitation	83.8 mm (3.3 in)	45 of 100 (Notable)
Fairview	Australia	Record daily precipitation	39.6 mm (1.6 in)	44 of 100 (Notable)
Mineral Ridge Wtr Wks	United States	Record daily precipitation	53.1 mm (2.1 in)	44 of 100 (Notable)
Cape Willoughby	Australia	Record daily precipitation	30.0 mm (1.2 in)	43 of 100 (Notable)
Canning Downs	Australia	Record daily precipitation	36.6 mm (1.4 in)	43 of 100 (Notable)
Doctors Creek	Australia	Record daily precipitation	31.8 mm (1.3 in)	43 of 100 (Notable)
Cynthiana	United States	Record daily precipitation	55.6 mm (2.2 in)	43 of 100 (Notable)
Booyal Central State School	Australia	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
Warwick Post Office	Australia	Record daily precipitation	42.2 mm (1.7 in)	42 of 100 (Notable)
Girard State Forest	Australia	Record daily precipitation	44.2 mm (1.7 in)	42 of 100 (Notable)
Macarthur (Post Office)	Australia	Record daily precipitation	26.2 mm (1.0 in)	42 of 100 (Notable)
Santa Fe	United States	Record low minimum temperature	7.8 C (46.0 F)	42 of 100 (Notable)
Westwood Store	Australia	Record daily precipitation	29.5 mm (1.2 in)	41 of 100 (Notable)
Pechey Forestry	Australia	Record daily precipitation	37.1 mm (1.5 in)	41 of 100 (Notable)
Taabinga	Australia	Record daily precipitation	36.8 mm (1.4 in)	41 of 100 (Notable)
Newburgh L&D	United States	Record daily precipitation	74.9 mm (2.9 in)	41 of 100 (Notable)
Ashville	Australia	Record daily precipitation	36.1 mm (1.4 in)	40 of 100 (Notable)
Balmoral Station	Australia	Record daily precipitation	26.7 mm (1.1 in)	40 of 100 (Notable)
Bajool Post Office	Australia	Record daily precipitation	26.7 mm (1.1 in)	40 of 100 (Notable)
Kabra Railway STN	Australia	Record daily precipitation	30.0 mm (1.2 in)	40 of 100 (Notable)
Miriam Vale	Australia	Record daily precipitation	32.3 mm (1.3 in)	40 of 100 (Notable)
Wallaville- Mill Street	Australia	Record daily precipitation	37.3 mm (1.5 in)	40 of 100 (Notable)
Rathdowney Post Office	Australia	Record daily precipitation	39.6 mm (1.6 in)	40 of 100 (Notable)
Tewantin Post Office	Australia	Record daily precipitation	37.3 mm (1.5 in)	40 of 100 (Notable)
Killarney Post Office	Australia	Record daily precipitation	31.5 mm (1.2 in)	40 of 100 (Notable)
Wallumbilla Post Office	Australia	Record daily precipitation	33.5 mm (1.3 in)	40 of 100 (Notable)
Pine Bluff	United States	Record daily precipitation	46.0 mm (1.8 in)	40 of 100 (Notable)
Jeanerette 5 NW	United States	Record low maximum temperature	25.0 C (77.0 F)	40 of 100 (Notable)

Counts by Type and Timescale

1,037 records

Records set or tied on 11 August 1966 by type: Highest daily maximum 19, Lowest daily maximum 187, Highest daily minimum 40, Lowest daily minimum 75, Heaviest daily rainfall 716.

Records on 11 August 1966 by type
Record type	Records
Highest daily maximum	19
Lowest daily maximum	187
Highest daily minimum	40
Lowest daily minimum	75
Heaviest daily rainfall	716
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 11 August 1966 by timescale: all-time 0, monthly 20, daily 1,017.

How Much Records Were Beaten By

934 broken records

Margins by which the 934 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 76.5. Ties are not counted.

Top 20 by Significance

11 August 1966

Top 20 records on 11 August 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 August 1966	Pittsworth, AU	daily rain	46.5 mm (1.8 in)	28.2 mm (1.1 in)	78 years	66 of 100 (Major)
11 August 1966	Walterhall, AU	daily rain	38.6 mm (1.5 in)	33.5 mm (1.3 in)	66 years	62 of 100 (Major)
11 August 1966	Meningie, AU	monthly rain	39.4 mm (1.6 in)	9.4 mm (0.37 in)	56 years	61 of 100 (Major)
11 August 1966	Moonmera, AU	daily rain	38.6 mm (1.5 in)	38.6 mm (1.5 in)	64 years	61 of 100 (Major)
11 August 1966	Childers Post Office, AU	daily rain	88.4 mm (3.5 in)	76.5 mm (3.0 in)	32 years	56 of 100 (Notable)
11 August 1966	Maryland, AU	daily rain	45.0 mm (1.8 in)	22.1 mm (0.9 in)	78 years	56 of 100 (Notable)
11 August 1966	Carnegie 5 NE, US	daily rain	63.5 mm (2.5 in)	51.6 mm (2.0 in)	48 years	56 of 100 (Notable)
11 August 1966	Old Koreelah (White Swamp (Ede, AU	daily rain	69.9 mm (2.8 in)	53.9 mm (2.1 in)	28 years	55 of 100 (Notable)
11 August 1966	Stanwell Post Office, AU	daily rain	32.0 mm (1.3 in)	28.2 mm (1.1 in)	66 years	54 of 100 (Notable)
11 August 1966	Cordalba Store, AU	daily rain	84.8 mm (3.3 in)	67.5 mm (2.7 in)	32 years	53 of 100 (Notable)
11 August 1966	Custodio, BR	monthly rain	68.0 mm (2.7 in)	57.5 mm (2.3 in)	1 year	53 of 100 (Notable)
11 August 1966	Palen Creek Correctional, AU	daily rain	52.8 mm (2.1 in)	51.3 mm (2.0 in)	28 years	51 of 100 (Notable)
11 August 1966	Balgownie West, AU	daily rain	44.2 mm (1.7 in)	23.9 mm (0.9 in)	49 years	51 of 100 (Notable)
11 August 1966	Lennoxville, CA	daily rain	50.8 mm (2.0 in)	23.1 mm (0.9 in)	73 years	51 of 100 (Notable)
11 August 1966	Sherbrooke, CA	daily rain	48.5 mm (1.9 in)	25.6 mm (1.0 in)	60 years	51 of 100 (Notable)
11 August 1966	Frederick, US	daily rain	51.1 mm (2.0 in)	39.7 mm (1.6 in)	48 years	51 of 100 (Notable)
11 August 1966	Nellore, IN	daily rain	77.6 mm (3.1 in)	52.2 mm (2.1 in)	16 years	50 of 100 (Notable)
11 August 1966	Back Plains, AU	daily rain	39.4 mm (1.6 in)	24.7 mm (1.0 in)	49 years	49 of 100 (Notable)
11 August 1966	Dungowan Station, AU	daily rain	41.1 mm (1.6 in)	20.8 mm (0.8 in)	56 years	49 of 100 (Notable)
11 August 1966	Corry, US	daily rain	50.8 mm (2.0 in)	36.6 mm (1.4 in)	28 years	49 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 1966

Records set or tied on this calendar date in each year from 1793 to 1966. 1966 had 1,037 records.

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

Records on 08-11 in each year
Year	Records
1793	1
1796	1
1811	1
1815	2
1838	1
1839	1
1841	1
1851	1
1855	1
1858	1
1861	2
1862	1
1863	1
1864	6
1865	1
1866	6
1869	4
1871	1
1875	1
1879	2
1881	1
1883	1
1885	1
1888	1
1889	4
1890	4
1891	1
1892	4
1893	1
1894	1
1895	2
1896	5
1897	3
1898	2
1899	3
1900	4
1901	4
1902	13
1903	12
1904	19
1905	9
1906	6
1907	8
1908	10
1909	41
1910	9
1911	24
1912	46
1913	43
1914	26
1915	27
1916	64
1917	217
1918	29
1919	18
1920	54
1921	201
1922	98
1923	80
1924	149
1925	219
1926	140
1927	190
1928	174
1929	354
1930	471
1931	453
1932	281
1933	416
1934	620
1935	499
1936	541
1937	356
1938	315
1939	389
1940	359
1941	807
1942	390
1943	345
1944	936
1945	401
1946	419
1947	709
1948	306
1949	471
1950	320
1951	296
1952	417
1953	283
1954	536
1955	319
1956	457
1957	305
1958	494
1959	337
1960	461
1961	429
1962	662
1963	493
1964	677
1965	793
1966	1,037
1967	1,071
1968	619
1969	533
1970	526
1971	711
1972	823
1973	451
1974	596
1975	753
1976	529
1977	845
1978	433
1979	797
1980	929
1981	645
1982	1,232
1983	1,095
1984	822
1985	804
1986	563
1987	885
1988	1,119
1989	983
1990	760
1991	822
1992	928
1993	840
1994	1,173
1995	1,324
1996	1,147
1997	1,512
1998	1,232
1999	1,152
2000	924
2001	811
2002	1,152
2003	1,601
2004	1,478
2005	1,031
2006	896
2007	1,428
2008	945
2009	836
2010	2,289
2011	1,106
2012	953
2013	470
2014	556
2015	696
2016	1,340
2017	619
2018	861
2019	758
2020	688
2021	834
2022	661
2023	757
2024	643
2025	722
2026	765

Download the Data

Data for records on 1966-08-11: 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).

Margin	Records
0 to 10	648
10 to 20	185
20 to 30	66
30 to 40	21
40 to 50	6
50 to 60	6
60 to 70	1
70 to 80	1