Weather Records on 12 August 1984

665 weather records were set or tied worldwide on 12 August 1984. Highest significance: Vasilevici, BY.

Key Facts for 12 August 1984

On 12 August 1984, 665 weather records were set or tied at long-record stations worldwide.
230 were record highs and 200 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 14 monthly and 648 daily.
Vasilevici set a daily record precipitation of 45.4 mm (1.8 in) on 12 August 1984.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 446 records.

Record Map

665 stations

665 station records on 12 August 1984 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 August 1984: highest significance records shown on the map
Station	Country	Type	Value	Significance
Vasilevici	Belarus	Record daily precipitation	45.4 mm (1.8 in)	70 of 100 (Major)
Dover	Australia	Record daily precipitation	54.4 mm (2.1 in)	63 of 100 (Major)
Levendale	Australia	Record daily precipitation	55.8 mm (2.2 in)	61 of 100 (Major)
Swansea Post Office	Australia	Record daily precipitation	28.4 mm (1.1 in)	60 of 100 (Major)
Lindisfarne	Australia	Record daily precipitation	42.0 mm (1.7 in)	58 of 100 (Notable)
Sorell (Whitlea)	Australia	Record daily precipitation	33.2 mm (1.3 in)	58 of 100 (Notable)
Sandford (Maydena)	Australia	Record daily precipitation	35.6 mm (1.4 in)	57 of 100 (Notable)
Runnymede (Whitemarsh)	Australia	Record daily precipitation	84.0 mm (3.3 in)	56 of 100 (Notable)
Wattle Hill	Australia	Record daily precipitation	53.0 mm (2.1 in)	56 of 100 (Notable)
Acmetonia Lock 3	United States	Record daily precipitation	75.2 mm (3.0 in)	56 of 100 (Notable)
Maria Island (Darlington)	Australia	Record daily precipitation	40.6 mm (1.6 in)	54 of 100 (Notable)
Kellevie	Australia	Record daily precipitation	54.2 mm (2.1 in)	54 of 100 (Notable)
Candor 2SE	United States	Record daily precipitation	68.3 mm (2.7 in)	54 of 100 (Notable)
Premaydena Hatchery	Australia	Record daily precipitation	59.6 mm (2.3 in)	53 of 100 (Notable)
Ravensdale	Australia	Record daily precipitation	46.0 mm (1.8 in)	51 of 100 (Notable)
Little Swanport (Lisdillon)	Australia	Record daily precipitation	30.0 mm (1.2 in)	50 of 100 (Notable)
Nubeena	Australia	Record daily precipitation	57.0 mm (2.2 in)	50 of 100 (Notable)
Tierra Blanca (Smn)	Mexico	Record low minimum temperature	12.8 C (55.0 F)	50 of 100 (Notable)
Jericho (Bowsden)	Australia	Record daily precipitation	27.0 mm (1.1 in)	48 of 100 (Notable)
Ternopil	Ukraine	Record daily precipitation	39.5 mm (1.6 in)	48 of 100 (Notable)
Lenah Valley (Augusta Road)	Australia	Record daily precipitation	42.4 mm (1.7 in)	47 of 100 (Notable)
Prescott	United States	Record daily precipitation	52.8 mm (2.1 in)	47 of 100 (Notable)
Southport	Australia	Record daily precipitation	42.0 mm (1.7 in)	46 of 100 (Notable)
Grove (Comparison)	Australia	Record daily precipitation	53.6 mm (2.1 in)	46 of 100 (Notable)
Dolinsk	Russia	Record daily precipitation	71.2 mm (2.8 in)	46 of 100 (Notable)
Laurel	United States	Record daily precipitation	79.5 mm (3.1 in)	46 of 100 (Notable)
Troy 1 NE	United States	Record daily precipitation	45.7 mm (1.8 in)	45 of 100 (Notable)
Rocky Mt	United States	Record daily precipitation	61.7 mm (2.4 in)	45 of 100 (Notable)
Glenorchy (Glenorchy Reservoir	Australia	Record daily precipitation	66.8 mm (2.6 in)	44 of 100 (Notable)
Jericho (Northumbria)	Australia	Record daily precipitation	27.4 mm (1.1 in)	43 of 100 (Notable)
Lymington (Fattys Lane)	Australia	Record daily precipitation	37.6 mm (1.5 in)	42 of 100 (Notable)
Woodstock	United States	Record daily precipitation	72.4 mm (2.9 in)	42 of 100 (Notable)
Buckland (Brockley)	Australia	Record daily precipitation	27.2 mm (1.1 in)	41 of 100 (Notable)
Hobart Botanical Gardens	Australia	Record daily precipitation	36.0 mm (1.4 in)	41 of 100 (Notable)
Lunawanna	Australia	Record daily precipitation	38.6 mm (1.5 in)	41 of 100 (Notable)
Locke 2 W	United States	Record daily precipitation	69.6 mm (2.7 in)	41 of 100 (Notable)
Millheim	United States	Record daily precipitation	98.8 mm (3.9 in)	41 of 100 (Notable)
Boyd	United States	Record daily precipitation	53.3 mm (2.1 in)	41 of 100 (Notable)
Hot Springs	United States	Record daily precipitation	66.5 mm (2.6 in)	41 of 100 (Notable)
Hastings Chalet	Australia	Record daily precipitation	50.2 mm (2.0 in)	40 of 100 (Notable)
Richmond (Brookbank)	Australia	Record daily precipitation	33.0 mm (1.3 in)	40 of 100 (Notable)
San Sebastian del Oeste	Mexico	Record low minimum temperature	8.9 C (48.0 F)	40 of 100 (Notable)
Beregovo	Ukraine	Record daily precipitation	54.1 mm (2.1 in)	40 of 100 (Notable)
Hobart (Waterworks Reserve)	Australia	Record daily precipitation	34.6 mm (1.4 in)	39 of 100 (Notable)
Evergreen	United States	Record daily precipitation	50.0 mm (2.0 in)	39 of 100 (Notable)
Tierra Blanca (Smn)	Mexico	Record low maximum temperature	26.7 C (80.1 F)	38 of 100 (Notable)
Cranbrook (Cranbrook House)	Australia	Record daily precipitation	27.4 mm (1.1 in)	37 of 100 (Notable)
Shannon River (Hermitage)	Australia	Record daily precipitation	29.0 mm (1.1 in)	37 of 100 (Notable)
Lockport 2SE	United States	Record daily precipitation	29.5 mm (1.2 in)	37 of 100 (Notable)
Spruce Knob	United States	Record daily precipitation	57.2 mm (2.3 in)	37 of 100 (Notable)
Hanging Rock State Forest	Australia	Record daily precipitation	65.0 mm (2.6 in)	36 of 100 (Notable)
Bream Creek (Stroud)	Australia	Record daily precipitation	40.0 mm (1.6 in)	36 of 100 (Notable)
Korsakov	Russia	Record daily precipitation	29.2 mm (1.1 in)	36 of 100 (Notable)
Le Roy	United States	Record daily precipitation	30.7 mm (1.2 in)	36 of 100 (Notable)
Forestburg 5 S	United States	Record daily precipitation	39.6 mm (1.6 in)	36 of 100 (Notable)
White Sulphur Springs	United States	Record daily precipitation	67.1 mm (2.6 in)	36 of 100 (Notable)
Trafalgar Toseland Road	Australia	Record daily precipitation	35.4 mm (1.4 in)	35 of 100 (Notable)
Hawthorne AP	United States	Record high minimum temperature	20.0 C (68.0 F)	35 of 100 (Notable)
Ochoco Rs	United States	Record low minimum temperature	-8.9 C (16.0 F)	35 of 100 (Notable)
Altavista	United States	Record daily precipitation	54.1 mm (2.1 in)	35 of 100 (Notable)

Counts by Type and Timescale

665 records

Records set or tied on 12 August 1984 by type: Highest daily maximum 67, Lowest daily maximum 108, Highest daily minimum 163, Lowest daily minimum 92, Heaviest daily rainfall 234, Heaviest daily snowfall 1.

Records on 12 August 1984 by type
Record type	Records
Highest daily maximum	67
Lowest daily maximum	108
Highest daily minimum	163
Lowest daily minimum	92
Heaviest daily rainfall	234
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 12 August 1984 by timescale: all-time 3, monthly 14, daily 648.

How Much Records Were Beaten By

509 broken records

Margins by which the 509 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 69.3. Ties are not counted.

Top 20 by Significance

12 August 1984

Top 20 records on 12 August 1984 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 August 1984	Vasilevici, BY	daily rain	45.4 mm (1.8 in)	25.8 mm (1.0 in)	87 years	70 of 100 (Major)
12 August 1984	Dover, AU	daily rain	54.4 mm (2.1 in)	31.5 mm (1.2 in)	58 years	63 of 100 (Major)
12 August 1984	Levendale, AU	daily rain	55.8 mm (2.2 in)	40.6 mm (1.6 in)	49 years	61 of 100 (Major)
12 August 1984	Swansea Post Office, AU	daily rain	28.4 mm (1.1 in)	20.0 mm (0.8 in)	65 years	60 of 100 (Major)
12 August 1984	Lindisfarne, AU	daily rain	42.0 mm (1.7 in)	24.7 mm (1.0 in)	38 years	58 of 100 (Notable)
12 August 1984	Sorell (Whitlea), AU	daily rain	33.2 mm (1.3 in)	19.7 mm (0.8 in)	38 years	58 of 100 (Notable)
12 August 1984	Sandford (Maydena), AU	daily rain	35.6 mm (1.4 in)	20.6 mm (0.8 in)	38 years	57 of 100 (Notable)
12 August 1984	Runnymede (Whitemarsh), AU	daily rain	84.0 mm (3.3 in)	69.3 mm (2.7 in)	38 years	56 of 100 (Notable)
12 August 1984	Wattle Hill, AU	daily rain	53.0 mm (2.1 in)	41.3 mm (1.6 in)	38 years	56 of 100 (Notable)
12 August 1984	Acmetonia Lock 3, US	daily rain	75.2 mm (3.0 in)	29.5 mm (1.2 in)	70 years	56 of 100 (Notable)
12 August 1984	Maria Island (Darlington), AU	daily rain	40.6 mm (1.6 in)	29.2 mm (1.1 in)	43 years	54 of 100 (Notable)
12 August 1984	Kellevie, AU	daily rain	54.2 mm (2.1 in)	36.2 mm (1.4 in)	28 years	54 of 100 (Notable)
12 August 1984	Candor 2SE, US	daily rain	68.3 mm (2.7 in)	47.0 mm (1.9 in)	35 years	54 of 100 (Notable)
12 August 1984	Premaydena Hatchery, AU	daily rain	59.6 mm (2.3 in)	25.6 mm (1.0 in)	43 years	53 of 100 (Notable)
12 August 1984	Ravensdale, AU	daily rain	46.0 mm (1.8 in)	33.3 mm (1.3 in)	24 years	51 of 100 (Notable)
12 August 1984	Little Swanport (Lisdillon), AU	daily rain	30.0 mm (1.2 in)	16.8 mm (0.7 in)	58 years	50 of 100 (Notable)
12 August 1984	Nubeena, AU	daily rain	57.0 mm (2.2 in)	42.5 mm (1.7 in)	12 years	50 of 100 (Notable)
12 August 1984	Tierra Blanca (Smn), MX	daily low min	12.8 C (55.0 F)	5.5 C (9.9 F)	61 years	50 of 100 (Notable)
12 August 1984	Jericho (Bowsden), AU	daily rain	27.0 mm (1.1 in)	22.4 mm (0.9 in)	12 years	48 of 100 (Notable)
12 August 1984	Ternopil, UA	daily rain	39.5 mm (1.6 in)	28.9 mm (1.1 in)	33 years	48 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 1984

Records set or tied on this calendar date in each year from 1793 to 1984. 1984 had 665 records.

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

Records on 08-12 in each year
Year	Records
1793	1
1796	1
1811	2
1814	1
1815	1
1825	1
1843	1
1851	1
1854	1
1855	2
1856	1
1861	1
1864	3
1865	1
1867	1
1868	1
1871	2
1872	1
1873	1
1874	2
1875	3
1876	2
1879	1
1881	2
1883	1
1884	1
1885	1
1887	2
1888	2
1889	4
1890	4
1891	4
1892	2
1893	1
1894	1
1895	6
1896	2
1897	4
1898	1
1899	10
1900	1
1901	5
1902	9
1903	14
1904	13
1905	16
1906	8
1907	8
1908	31
1909	42
1910	16
1911	33
1912	40
1913	39
1914	26
1915	46
1916	31
1917	134
1918	37
1919	42
1920	26
1921	174
1922	71
1923	89
1924	267
1925	150
1926	154
1927	145
1928	173
1929	276
1930	501
1931	708
1932	418
1933	271
1934	471
1935	408
1936	591
1937	356
1938	237
1939	282
1940	545
1941	481
1942	257
1943	523
1944	595
1945	295
1946	655
1947	729
1948	384
1949	469
1950	442
1951	357
1952	533
1953	227
1954	969
1955	590
1956	265
1957	384
1958	406
1959	388
1960	707
1961	381
1962	466
1963	559
1964	1,346
1965	977
1966	777
1967	1,135
1968	444
1969	629
1970	422
1971	486
1972	473
1973	442
1974	560
1975	593
1976	495
1977	747
1978	571
1979	1,192
1980	692
1981	665
1982	789
1983	923
1984	665
1985	935
1986	615
1987	935
1988	1,518
1989	827
1990	727
1991	726
1992	1,134
1993	936
1994	861
1995	1,654
1996	1,336
1997	1,363
1998	1,215
1999	1,325
2000	741
2001	855
2002	1,345
2003	1,752
2004	1,872
2005	1,085
2006	874
2007	1,209
2008	970
2009	814
2010	1,907
2011	903
2012	910
2013	427
2014	787
2015	757
2016	1,290
2017	533
2018	571
2019	695
2020	730
2021	980
2022	616
2023	779
2024	659
2025	639
2026	849

Download the Data

Data for records on 1984-08-12: 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	388
10 to 20	58
20 to 30	39
30 to 40	11
40 to 50	10
50 to 60	2
60 to 70	1