Weather Records on 31 August 1966

830 weather records were set or tied worldwide on 31 August 1966. Highest significance: Mungindi (Cambo Cambo), AU.

Key Facts for 31 August 1966

On 31 August 1966, 830 weather records were set or tied at long-record stations worldwide.
90 were record highs and 232 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 74 monthly and 755 daily.
Mungindi (Cambo Cambo) set a monthly record daily precipitation of 89.4 mm (3.5 in) on 31 August 1966.
Across 165 earlier years (1796 to 2026) the same calendar date averaged 434 records.

Record Map

830 stations

830 station records on 31 August 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 August 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mungindi (Cambo Cambo)	Australia	Record daily precipitation	89.4 mm (3.5 in)	71 of 100 (Major)
Collarenebri (Albert St)	Australia	Record daily precipitation	47.8 mm (1.9 in)	71 of 100 (Major)
Weilmoringle	Australia	Record daily precipitation	52.6 mm (2.1 in)	68 of 100 (Major)
Tilpa (Tongo Road)	Australia	Record daily precipitation	41.1 mm (1.6 in)	66 of 100 (Major)
Rowena (Bunna Bunna)	Australia	Record daily precipitation	61.2 mm (2.4 in)	65 of 100 (Major)
Bingara (Derra Derra)	Australia	Record daily precipitation	54.1 mm (2.1 in)	65 of 100 (Major)
Bellata (Aberfeldie)	Australia	Record daily precipitation	54.6 mm (2.1 in)	63 of 100 (Major)
Gravesend Post Office	Australia	Record daily precipitation	55.1 mm (2.2 in)	63 of 100 (Major)
St George Post Office	Australia	Record daily precipitation	40.4 mm (1.6 in)	62 of 100 (Major)
Ballinger 2 NW	United States	Record daily precipitation	100.3 mm (3.9 in)	61 of 100 (Major)
New Angledool Telephone Office	Australia	Record daily precipitation	45.0 mm (1.8 in)	59 of 100 (Notable)
Tarago (Willeroo)	Australia	Record daily precipitation	45.5 mm (1.8 in)	58 of 100 (Notable)
Wee Waa (Pendennis)	Australia	Record daily precipitation	45.2 mm (1.8 in)	57 of 100 (Notable)
Weilmoringle (Caringle)	Australia	Record daily precipitation	42.7 mm (1.7 in)	56 of 100 (Notable)
Goodooga (Brenda)	Australia	Record daily precipitation	36.8 mm (1.4 in)	55 of 100 (Notable)
Upper Bingara (Emohta)	Australia	Record daily precipitation	49.8 mm (2.0 in)	55 of 100 (Notable)
Alva 1W	United States	Record daily precipitation	68.1 mm (2.7 in)	55 of 100 (Notable)
Thallon Post Office	Australia	Record daily precipitation	46.7 mm (1.8 in)	54 of 100 (Notable)
Goodooga Post Office	Australia	Record daily precipitation	31.8 mm (1.3 in)	54 of 100 (Notable)
Collarenebri (Goondoobluie)	Australia	Record daily precipitation	54.4 mm (2.1 in)	54 of 100 (Notable)
Narrabri (Mollee)	Australia	Record daily precipitation	41.9 mm (1.6 in)	54 of 100 (Notable)
Wee Waa (George St)	Australia	Record daily precipitation	44.2 mm (1.7 in)	54 of 100 (Notable)
Inverell Comparison	Australia	Record daily precipitation	50.8 mm (2.0 in)	54 of 100 (Notable)
Forked Mountain	Australia	Record daily precipitation	48.3 mm (1.9 in)	54 of 100 (Notable)
Tulloona (Coolanga)	Australia	Record daily precipitation	54.9 mm (2.2 in)	53 of 100 (Notable)
Bingara (Lucunda)	Australia	Record daily precipitation	51.1 mm (2.0 in)	53 of 100 (Notable)
Pilliga Post Office	Australia	Record daily precipitation	43.7 mm (1.7 in)	52 of 100 (Notable)
Cobbadah Post Office	Australia	Record daily precipitation	40.1 mm (1.6 in)	52 of 100 (Notable)
Noondoo	Australia	Record daily precipitation	37.8 mm (1.5 in)	51 of 100 (Notable)
Mungindi (Burrenbah)	Australia	Record daily precipitation	63.5 mm (2.5 in)	51 of 100 (Notable)
Gnomery	Australia	Record daily precipitation	34.0 mm (1.3 in)	51 of 100 (Notable)
Dirranbandi High School	Australia	Record daily precipitation	38.6 mm (1.5 in)	50 of 100 (Notable)
Angledool (Angledool Station)	Australia	Record daily precipitation	36.3 mm (1.4 in)	50 of 100 (Notable)
Mogil Mogil (Benimora)	Australia	Record daily precipitation	58.2 mm (2.3 in)	50 of 100 (Notable)
Merrywinbone (Oreel)	Australia	Record daily precipitation	54.9 mm (2.2 in)	50 of 100 (Notable)
Graman (Willowie)	Australia	Record daily precipitation	35.6 mm (1.4 in)	50 of 100 (Notable)
Bybera	Australia	Record daily precipitation	38.6 mm (1.5 in)	49 of 100 (Notable)
Bomalli	Australia	Record daily precipitation	28.2 mm (1.1 in)	49 of 100 (Notable)
Collarenebri (Bundabarina)	Australia	Record daily precipitation	29.0 mm (1.1 in)	49 of 100 (Notable)
Ashley (Midkin)	Australia	Record daily precipitation	72.6 mm (2.9 in)	49 of 100 (Notable)
Mount Topper State Forest	Australia	Record daily precipitation	68.3 mm (2.7 in)	49 of 100 (Notable)
Red Range (Victoria St)	Australia	Record daily precipitation	37.1 mm (1.5 in)	49 of 100 (Notable)
Burren Junction (Hastings Stre	Australia	Record daily precipitation	63.0 mm (2.5 in)	48 of 100 (Notable)
Ballandool	Australia	Record daily precipitation	25.1 mm (1.0 in)	47 of 100 (Notable)
Canbelego the Hermitage	Australia	Record daily precipitation	60.2 mm (2.4 in)	47 of 100 (Notable)
Garah Post Office	Australia	Record daily precipitation	66.5 mm (2.6 in)	47 of 100 (Notable)
Wandsworth (Strabanne)	Australia	Record daily precipitation	43.9 mm (1.7 in)	47 of 100 (Notable)
Brewarrina (Talawanta)	Australia	Record daily precipitation	43.9 mm (1.7 in)	46 of 100 (Notable)
Delungra Post Office	Australia	Record daily precipitation	62.2 mm (2.4 in)	46 of 100 (Notable)
Barraba (Neranghi)	Australia	Record daily precipitation	41.1 mm (1.6 in)	46 of 100 (Notable)
Fernlee	Australia	Record daily precipitation	33.5 mm (1.3 in)	45 of 100 (Notable)
Windermere	Australia	Record daily precipitation	46.5 mm (1.8 in)	45 of 100 (Notable)
Goodooga (Mogila)	Australia	Record daily precipitation	26.7 mm (1.1 in)	45 of 100 (Notable)
Turrawan (Wallah)	Australia	Record daily precipitation	35.1 mm (1.4 in)	45 of 100 (Notable)
Coonabarabran (Mia Mia)	Australia	Record daily precipitation	42.9 mm (1.7 in)	45 of 100 (Notable)
Lynway	Australia	Record daily precipitation	43.7 mm (1.7 in)	44 of 100 (Notable)
Muckadilla Post Office	Australia	Record daily precipitation	38.1 mm (1.5 in)	44 of 100 (Notable)
Hebel Store	Australia	Record daily precipitation	33.8 mm (1.3 in)	44 of 100 (Notable)
The Oaks John Street	Australia	Record daily precipitation	37.8 mm (1.5 in)	44 of 100 (Notable)
Bogoroditskoye-Fenino	Russia	Record low minimum temperature	0.5 C (32.9 F)	44 of 100 (Notable)

Counts by Type and Timescale

830 records

Records set or tied on 31 August 1966 by type: Highest daily maximum 50, Lowest daily maximum 125, Highest daily minimum 40, Lowest daily minimum 107, Heaviest daily rainfall 508.

Records on 31 August 1966 by type
Record type	Records
Highest daily maximum	50
Lowest daily maximum	125
Highest daily minimum	40
Lowest daily minimum	107
Heaviest daily rainfall	508
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 August 1966 by timescale: all-time 1, monthly 74, daily 755.

How Much Records Were Beaten By

741 broken records

Margins by which the 741 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 67.5. Ties are not counted.

Top 20 by Significance

31 August 1966

Top 20 records on 31 August 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 August 1966	Mungindi (Cambo Cambo), AU	monthly rain	89.4 mm (3.5 in)	46.7 mm (1.8 in)	48 years	71 of 100 (Major)
31 August 1966	Collarenebri (Albert St), AU	daily rain	47.8 mm (1.9 in)	34.6 mm (1.4 in)	78 years	71 of 100 (Major)
31 August 1966	Weilmoringle, AU	daily rain	52.6 mm (2.1 in)	40.2 mm (1.6 in)	67 years	68 of 100 (Major)
31 August 1966	Tilpa (Tongo Road), AU	daily rain	41.1 mm (1.6 in)	28.4 mm (1.1 in)	60 years	66 of 100 (Major)
31 August 1966	Rowena (Bunna Bunna), AU	daily rain	61.2 mm (2.4 in)	48.0 mm (1.9 in)	60 years	65 of 100 (Major)
31 August 1966	Bingara (Derra Derra), AU	daily rain	54.1 mm (2.1 in)	42.9 mm (1.7 in)	64 years	65 of 100 (Major)
31 August 1966	Bellata (Aberfeldie), AU	daily rain	54.6 mm (2.1 in)	34.3 mm (1.4 in)	60 years	63 of 100 (Major)
31 August 1966	Gravesend Post Office, AU	daily rain	55.1 mm (2.2 in)	31.0 mm (1.2 in)	76 years	63 of 100 (Major)
31 August 1966	St George Post Office, AU	daily rain	40.4 mm (1.6 in)	26.4 mm (1.0 in)	78 years	62 of 100 (Major)
31 August 1966	Ballinger 2 NW, US	daily rain	100.3 mm (3.9 in)	67.5 mm (2.7 in)	63 years	61 of 100 (Major)
31 August 1966	New Angledool Telephone Office, AU	daily rain	45.0 mm (1.8 in)	23.4 mm (0.9 in)	76 years	59 of 100 (Notable)
31 August 1966	Tarago (Willeroo), AU	daily rain	45.5 mm (1.8 in)	27.2 mm (1.1 in)	48 years	58 of 100 (Notable)
31 August 1966	Wee Waa (Pendennis), AU	daily rain	45.2 mm (1.8 in)	26.9 mm (1.1 in)	60 years	57 of 100 (Notable)
31 August 1966	Weilmoringle (Caringle), AU	daily rain	42.7 mm (1.7 in)	39.4 mm (1.6 in)	33 years	56 of 100 (Notable)
31 August 1966	Goodooga (Brenda), AU	daily rain	36.8 mm (1.4 in)	18.0 mm (0.7 in)	76 years	55 of 100 (Notable)
31 August 1966	Upper Bingara (Emohta), AU	daily rain	49.8 mm (2.0 in)	43.4 mm (1.7 in)	48 years	55 of 100 (Notable)
31 August 1966	Alva 1W, US	daily rain	68.1 mm (2.7 in)	47.8 mm (1.9 in)	71 years	55 of 100 (Notable)
31 August 1966	Thallon Post Office, AU	daily rain	46.7 mm (1.8 in)	40.3 mm (1.6 in)	32 years	54 of 100 (Notable)
31 August 1966	Goodooga Post Office, AU	daily rain	31.8 mm (1.3 in)	20.6 mm (0.8 in)	60 years	54 of 100 (Notable)
31 August 1966	Collarenebri (Goondoobluie), AU	monthly rain	54.4 mm (2.1 in)	11.7 mm (0.5 in)	79 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

1796 to 1966

Records set or tied on this calendar date in each year from 1796 to 1966. 1966 had 830 records.

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

Records on 08-31 in each year
Year	Records
1796	1
1806	1
1807	2
1813	1
1814	1
1816	1
1827	1
1836	1
1846	1
1849	1
1851	1
1856	2
1858	1
1859	1
1860	1
1861	1
1863	1
1867	1
1869	1
1873	1
1875	1
1876	1
1877	2
1879	2
1881	3
1882	2
1885	1
1886	5
1887	1
1889	1
1890	2
1892	3
1893	1
1894	1
1895	1
1896	1
1897	5
1898	10
1899	4
1900	3
1901	5
1902	5
1903	16
1904	13
1905	8
1906	47
1907	6
1908	12
1909	39
1910	20
1911	31
1912	34
1913	40
1914	23
1915	71
1916	7
1917	60
1918	58
1919	25
1920	46
1921	86
1922	58
1923	63
1924	232
1925	111
1926	148
1927	103
1928	201
1929	300
1930	243
1931	192
1932	807
1933	424
1934	381
1935	540
1936	226
1937	508
1938	324
1939	296
1940	400
1941	528
1942	422
1943	650
1944	638
1945	572
1946	545
1947	473
1948	367
1949	409
1950	662
1951	910
1952	388
1953	1,054
1954	633
1955	539
1956	734
1957	317
1958	417
1959	496
1960	366
1961	625
1962	432
1963	415
1964	591
1965	886
1966	830
1967	952
1968	562
1969	474
1970	558
1971	326
1972	287
1973	793
1974	587
1975	658
1976	732
1977	621
1978	891
1979	400
1980	701
1981	692
1982	586
1983	788
1984	866
1985	854
1986	1,218
1987	836
1988	570
1989	622
1990	966
1991	848
1992	1,274
1993	1,286
1994	1,139
1995	1,077
1996	1,451
1997	943
1998	1,163
1999	988
2000	1,545
2001	944
2002	852
2003	1,232
2004	963
2005	1,782
2006	1,147
2007	1,110
2008	870
2009	1,224
2010	1,490
2011	994
2012	932
2013	771
2014	458
2015	1,074
2016	599
2017	596
2018	366
2019	781
2020	737
2021	553
2022	1,191
2023	600
2024	766
2025	307
2026	595

Download the Data

Data for records on 1966-08-31: 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	542
10 to 20	114
20 to 30	53
30 to 40	21
40 to 50	10
50 to 60	0
60 to 70	1