Weather Records on 12 August 1987

935 weather records were set or tied worldwide on 12 August 1987. Highest significance: Fowlers Gap Research Station, AU.

Key Facts for 12 August 1987

On 12 August 1987, 935 weather records were set or tied at long-record stations worldwide.
380 were record highs and 303 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 38 monthly and 896 daily.
Fowlers Gap Research Station set a daily record precipitation of 27.2 mm (1.1 in) on 12 August 1987.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 445 records.

Record Map

935 stations

935 station records on 12 August 1987 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 August 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
Fowlers Gap Research Station	Australia	Record daily precipitation	27.2 mm (1.1 in)	61 of 100 (Major)
Harwood Island (Harwood Sugar	Australia	Record daily precipitation	63.6 mm (2.5 in)	61 of 100 (Major)
McCracken	United States	Record daily precipitation	74.7 mm (2.9 in)	58 of 100 (Notable)
Lawrence Post Office	Australia	Record daily precipitation	64.2 mm (2.5 in)	57 of 100 (Notable)
Lismore (Centre Street)	Australia	Record daily precipitation	65.2 mm (2.6 in)	57 of 100 (Notable)
Covington 8 WNW	United States	Record daily precipitation	117.9 mm (4.6 in)	57 of 100 (Notable)
The Channon	Australia	Record daily precipitation	55.0 mm (2.2 in)	56 of 100 (Notable)
Vancleave	United States	Record daily precipitation	138.4 mm (5.4 in)	54 of 100 (Notable)
Cape St. Francis	South Africa	Record daily precipitation	52.0 mm (2.0 in)	51 of 100 (Notable)
Healy	United States	Record daily precipitation	87.4 mm (3.4 in)	50 of 100 (Notable)
Maclean (McLachlan Street)	Australia	Record daily precipitation	58.0 mm (2.3 in)	49 of 100 (Notable)
Flagstaff AP	United States	Record daily precipitation	50.5 mm (2.0 in)	49 of 100 (Notable)
Mummulgum (Bingeebeebra)	Australia	Record daily precipitation	45.0 mm (1.8 in)	48 of 100 (Notable)
San Luis de la Paz	Mexico	Record daily precipitation	56.4 mm (2.2 in)	48 of 100 (Notable)
Standard	United States	Record daily precipitation	108.0 mm (4.3 in)	48 of 100 (Notable)
Tinnenburra	Australia	Record daily precipitation	26.0 mm (1.0 in)	47 of 100 (Notable)
Halmstad	Sweden	Record low minimum temperature	4.4 C (39.9 F)	47 of 100 (Notable)
Crystal Springs Exp STN	United States	Record daily precipitation	77.5 mm (3.1 in)	46 of 100 (Notable)
Kanab	United States	Record daily precipitation	28.7 mm (1.1 in)	46 of 100 (Notable)
Russell Muni AP	United States	Record daily precipitation	93.7 mm (3.7 in)	46 of 100 (Notable)
New Roads 5 NE	United States	Record daily precipitation	158.0 mm (6.2 in)	45 of 100 (Notable)
Slidell	United States	Record daily precipitation	94.7 mm (3.7 in)	45 of 100 (Notable)
Coraki Post Office	Australia	Record daily precipitation	56.8 mm (2.2 in)	44 of 100 (Notable)
Casa Llanta	Mexico	Record daily precipitation	68.3 mm (2.7 in)	44 of 100 (Notable)
Oaknolia 2N	United States	Record daily precipitation	140.7 mm (5.5 in)	44 of 100 (Notable)
Atlanta	United States	Record daily precipitation	76.7 mm (3.0 in)	43 of 100 (Notable)
Gorakhpur	India	Record daily precipitation	193.0 mm (7.6 in)	42 of 100 (Notable)
Orebro	Sweden	Record low minimum temperature	4.6 C (40.3 F)	42 of 100 (Notable)
Denton	United States	Record low minimum temperature	-2.8 C (27.0 F)	42 of 100 (Notable)
Tashkent	Uzbekistan	Record high minimum temperature	24.0 C (75.2 F)	42 of 100 (Notable)
Tallebudgera Guineas Creek Roa	Australia	Record daily precipitation	42.4 mm (1.7 in)	41 of 100 (Notable)
Haleyville	United States	Record daily precipitation	67.3 mm (2.6 in)	41 of 100 (Notable)
Des Moines Intl AP	United States	Record daily precipitation	55.4 mm (2.2 in)	41 of 100 (Notable)
Casino Airport	Australia	Record daily precipitation	35.8 mm (1.4 in)	40 of 100 (Notable)
Divisa de Anitapolis	Brazil	Record daily precipitation	75.0 mm (3.0 in)	40 of 100 (Notable)
Navacerrada	Spain	Record high maximum temperature	31.8 C (89.2 F)	40 of 100 (Notable)
Nashville 5 SSE	United States	Record daily precipitation	90.2 mm (3.6 in)	40 of 100 (Notable)
Trinidad AP	United States	Record daily precipitation	43.2 mm (1.7 in)	40 of 100 (Notable)
Praha-Klementinum	Czech Republic	Record low minimum temperature	8.9 C (48.0 F)	39 of 100 (Notable)
Enisejsk	Russia	Record high minimum temperature	17.6 C (63.7 F)	39 of 100 (Notable)
Scottsboro	United States	Record high minimum temperature	24.4 C (75.9 F)	39 of 100 (Notable)
Biloxi	United States	Record daily precipitation	72.6 mm (2.9 in)	38 of 100 (Notable)
Cleveland	United States	Record daily precipitation	73.2 mm (2.9 in)	38 of 100 (Notable)
Conway	United States	Record daily precipitation	66.5 mm (2.6 in)	38 of 100 (Notable)
Collerina (Corrella)	Australia	Record daily precipitation	34.0 mm (1.3 in)	37 of 100 (Notable)
Klaipeda	Lithuania	Record daily precipitation	36.7 mm (1.4 in)	37 of 100 (Notable)
Los Castillos	Mexico	Record daily precipitation	60.2 mm (2.4 in)	37 of 100 (Notable)
Pogranichnyj	Russia	Record daily precipitation	39.4 mm (1.6 in)	37 of 100 (Notable)
Snake Rvr	United States	Record low minimum temperature	-5.0 C (23.0 F)	37 of 100 (Notable)
Tiskilwa 2 SE	United States	Record high minimum temperature	20.6 C (69.1 F)	36 of 100 (Notable)
Collyer 10 S	United States	Record daily precipitation	44.5 mm (1.8 in)	36 of 100 (Notable)
Sterling	United States	Record daily precipitation	33.3 mm (1.3 in)	36 of 100 (Notable)
Port Gibson 1 NE	United States	Record high minimum temperature	24.4 C (75.9 F)	36 of 100 (Notable)
Yathroo	Australia	Record daily precipitation	31.0 mm (1.2 in)	35 of 100 (Notable)
Numinbah	Australia	Record daily precipitation	58.0 mm (2.3 in)	35 of 100 (Notable)
Federal Post Office	Australia	Record daily precipitation	48.0 mm (1.9 in)	35 of 100 (Notable)
Moyoguarda	Mexico	Record high maximum temperature	29.4 C (84.9 F)	35 of 100 (Notable)
Mazanovo	Russia	Record daily precipitation	77.5 mm (3.1 in)	35 of 100 (Notable)
Madrid - Retiro	Spain	Record high minimum temperature	24.0 C (75.2 F)	35 of 100 (Notable)
Chester	United States	Record low minimum temperature	-0.6 C (30.9 F)	35 of 100 (Notable)

Counts by Type and Timescale

935 records

Records set or tied on 12 August 1987 by type: Highest daily maximum 132, Lowest daily maximum 109, Highest daily minimum 248, Lowest daily minimum 194, Heaviest daily rainfall 252.

Records on 12 August 1987 by type
Record type	Records
Highest daily maximum	132
Lowest daily maximum	109
Highest daily minimum	248
Lowest daily minimum	194
Heaviest daily rainfall	252
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 12 August 1987 by timescale: all-time 1, monthly 38, daily 896.

How Much Records Were Beaten By

702 broken records

Margins by which the 702 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 128.8. Ties are not counted.

Top 20 by Significance

12 August 1987

Top 20 records on 12 August 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 August 1987	Fowlers Gap Research Station, AU	daily rain	27.2 mm (1.1 in)	22.4 mm (0.9 in)	70 years	61 of 100 (Major)
12 August 1987	Harwood Island (Harwood Sugar, AU	daily rain	63.6 mm (2.5 in)	53.4 mm (2.1 in)	57 years	61 of 100 (Major)
12 August 1987	McCracken, US	daily rain	74.7 mm (2.9 in)	56.9 mm (2.2 in)	38 years	58 of 100 (Notable)
12 August 1987	Lawrence Post Office, AU	daily rain	64.2 mm (2.5 in)	26.6 mm (1.0 in)	95 years	57 of 100 (Notable)
12 August 1987	Lismore (Centre Street), AU	daily rain	65.2 mm (2.6 in)	26.8 mm (1.1 in)	95 years	57 of 100 (Notable)
12 August 1987	Covington 8 WNW, US	daily rain	117.9 mm (4.6 in)	73.4 mm (2.9 in)	28 years	57 of 100 (Notable)
12 August 1987	The Channon, AU	daily rain	55.0 mm (2.2 in)	31.9 mm (1.3 in)	57 years	56 of 100 (Notable)
12 August 1987	Vancleave, US	daily rain	138.4 mm (5.4 in)	107.9 mm (4.2 in)	34 years	54 of 100 (Notable)
12 August 1987	Cape St. Francis, ZA	daily rain	52.0 mm (2.0 in)	36.0 mm (1.4 in)	22 years	51 of 100 (Notable)
12 August 1987	Healy, US	monthly rain	87.4 mm (3.4 in)	8.7 mm (0.34 in)	84 years	50 of 100 (Notable)
12 August 1987	Maclean (McLachlan Street), AU	daily rain	58.0 mm (2.3 in)	19.9 mm (0.8 in)	95 years	49 of 100 (Notable)
12 August 1987	Flagstaff AP, US	daily rain	50.5 mm (2.0 in)	25.4 mm (1.0 in)	32 years	49 of 100 (Notable)
12 August 1987	Mummulgum (Bingeebeebra), AU	daily rain	45.0 mm (1.8 in)	34.8 mm (1.4 in)	49 years	48 of 100 (Notable)
12 August 1987	San Luis de la Paz, MX	daily rain	56.4 mm (2.2 in)	43.2 mm (1.7 in)	8 years	48 of 100 (Notable)
12 August 1987	Standard, US	daily rain	108.0 mm (4.3 in)	67.1 mm (2.6 in)	16 years	48 of 100 (Notable)
12 August 1987	Tinnenburra, AU	daily rain	26.0 mm (1.0 in)	15.1 mm (0.6 in)	69 years	47 of 100 (Notable)
12 August 1987	Halmstad, SE	daily low min	4.4 C (39.9 F)	3.1 C (5.6 F)	86 years	47 of 100 (Notable)
12 August 1987	Crystal Springs Exp STN, US	daily rain	77.5 mm (3.1 in)	26.7 mm (1.1 in)	57 years	46 of 100 (Notable)
12 August 1987	Kanab, US	daily rain	28.7 mm (1.1 in)	13.0 mm (0.5 in)	58 years	46 of 100 (Notable)
12 August 1987	Russell Muni AP, US	daily rain	93.7 mm (3.7 in)	85.6 mm (3.4 in)	10 years	46 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 1987

Records set or tied on this calendar date in each year from 1793 to 1987. 1987 had 935 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 1987-08-12: 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 20	647
20 to 40	37
40 to 60	10
60 to 80	4
80 to 100	2
100 to 120	1
120 to 140	1