Weather Records on 11 August 1987

885 weather records were set or tied worldwide on 11 August 1987. Highest significance: Lithgow (Birdwood St), AU.

Key Facts for 11 August 1987

On 11 August 1987, 885 weather records were set or tied at long-record stations worldwide.
355 were record highs and 355 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 22 monthly and 862 daily.
Lithgow (Birdwood St) set a daily record precipitation of 49.4 mm (1.9 in) on 11 August 1987.
Across 161 earlier years (1793 to 2026) the same calendar date averaged 458 records.

Record Map

885 stations

885 station records on 11 August 1987 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 August 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
Lithgow (Birdwood St)	Australia	Record daily precipitation	49.4 mm (1.9 in)	59 of 100 (Notable)
Die Hoop	South Africa	Record daily precipitation	72.0 mm (2.8 in)	56 of 100 (Notable)
Baton Rouge Metro AP	United States	Record daily precipitation	201.7 mm (7.9 in)	56 of 100 (Notable)
Mansfield 4 NW	United States	Record daily precipitation	43.9 mm (1.7 in)	53 of 100 (Notable)
Vastervik	Sweden	Record low minimum temperature	5.0 C (41.0 F)	50 of 100 (Notable)
Mount Victoria (Mt Victoria (S	Australia	Record daily precipitation	46.4 mm (1.8 in)	48 of 100 (Notable)
Weissenburg	Germany	Record low minimum temperature	4.6 C (40.3 F)	48 of 100 (Notable)
Siauliai	Lithuania	Record daily precipitation	48.2 mm (1.9 in)	48 of 100 (Notable)
Maclean (McLachlan Street)	Australia	Record daily precipitation	50.8 mm (2.0 in)	46 of 100 (Notable)
Worcester	South Africa	Record daily precipitation	38.0 mm (1.5 in)	46 of 100 (Notable)
Kinston 7 SE	United States	Record daily precipitation	75.9 mm (3.0 in)	46 of 100 (Notable)
Sedgefield (Bundajon)	Australia	Record daily precipitation	37.0 mm (1.5 in)	44 of 100 (Notable)
Cherry Point MCAS	United States	Record daily precipitation	133.1 mm (5.2 in)	44 of 100 (Notable)
Tinnenburra	Australia	Record daily precipitation	26.4 mm (1.0 in)	42 of 100 (Notable)
Klaipeda	Lithuania	Record daily precipitation	38.3 mm (1.5 in)	42 of 100 (Notable)
Arivaca	United States	Record daily precipitation	55.6 mm (2.2 in)	41 of 100 (Notable)
Bernburg/Saale (Nord)	Germany	Record low minimum temperature	7.5 C (45.5 F)	40 of 100 (Notable)
Chemnitz	Germany	Record low minimum temperature	6.6 C (43.9 F)	40 of 100 (Notable)
Union de Tula	Mexico	Record daily precipitation	43.4 mm (1.7 in)	40 of 100 (Notable)
White Cliffs (Tongo)	Australia	Record daily precipitation	25.9 mm (1.0 in)	39 of 100 (Notable)
Bilpin (Fern Grove)	Australia	Record daily precipitation	82.4 mm (3.2 in)	39 of 100 (Notable)
Regensburg	Germany	Record low minimum temperature	5.7 C (42.3 F)	39 of 100 (Notable)
Monroe Rgnl AP	United States	Record daily precipitation	35.1 mm (1.4 in)	39 of 100 (Notable)
Harwood Island (Harwood Sugar	Australia	Record daily precipitation	61.4 mm (2.4 in)	37 of 100 (Notable)
Lawson (Wilson Street)	Australia	Record daily precipitation	32.4 mm (1.3 in)	37 of 100 (Notable)
Windsor Bowling Club	Australia	Record daily precipitation	35.4 mm (1.4 in)	37 of 100 (Notable)
San Simon	United States	Record low maximum temperature	30.6 C (87.1 F)	37 of 100 (Notable)
Alexandria	United States	Record low maximum temperature	28.3 C (82.9 F)	37 of 100 (Notable)
Richmond - Uws Hawkesbury	Australia	Record daily precipitation	32.6 mm (1.3 in)	36 of 100 (Notable)
Camden (Brownlow Hill)	Australia	Record daily precipitation	35.6 mm (1.4 in)	36 of 100 (Notable)
Danville	United States	Record daily precipitation	67.8 mm (2.7 in)	36 of 100 (Notable)
Eastman 1 W	United States	Record high minimum temperature	24.4 C (75.9 F)	36 of 100 (Notable)
Halle	Germany	Record low minimum temperature	8.7 C (47.7 F)	35 of 100 (Notable)
La Cruz	Mexico	Record daily precipitation	49.8 mm (2.0 in)	35 of 100 (Notable)
Port Gibson 1 NE	United States	Record daily precipitation	55.6 mm (2.2 in)	35 of 100 (Notable)
Marseille Obs. Palais-Lonchamp	France	Record high maximum temperature	32.9 C (91.2 F)	34 of 100 (Routine)
Tapalpa (Smn)	Mexico	Record low maximum temperature	13.9 C (57.0 F)	34 of 100 (Routine)
Ballina (Crowley Village)	Australia	Record daily precipitation	50.0 mm (2.0 in)	33 of 100 (Routine)
Nikolskoye/Beringa Ostrov	Russia	Record low maximum temperature	9.9 C (49.8 F)	33 of 100 (Routine)
Monticello 5 SE	United States	Record high minimum temperature	24.4 C (75.9 F)	33 of 100 (Routine)
Cartersville	United States	Record daily precipitation	55.9 mm (2.2 in)	33 of 100 (Routine)
Hansboro 4 NNE	United States	Record high minimum temperature	17.8 C (64.0 F)	33 of 100 (Routine)
Wisemans Ferry (Old Po)	Australia	Record daily precipitation	48.0 mm (1.9 in)	32 of 100 (Routine)
Stockholm	Sweden	Record low maximum temperature	13.6 C (56.5 F)	32 of 100 (Routine)
Lithgow (Newnes Forest Centre)	Australia	Record daily precipitation	43.2 mm (1.7 in)	31 of 100 (Routine)
Dwars-In-Die-Weg	South Africa	Record daily precipitation	26.0 mm (1.0 in)	31 of 100 (Routine)
Des Moines	United States	Record daily precipitation	53.8 mm (2.1 in)	31 of 100 (Routine)
El Morro Natl Mon	United States	Record high minimum temperature	18.3 C (64.9 F)	31 of 100 (Routine)
Waialua 847	United States	Record high maximum temperature	33.3 C (91.9 F)	31 of 100 (Routine)
Richmond Raaf	Australia	Record daily precipitation	30.0 mm (1.2 in)	30 of 100 (Routine)
Berowra (Goodwyn Road)	Australia	Record daily precipitation	32.8 mm (1.3 in)	30 of 100 (Routine)
Vestervig	Denmark	Record low minimum temperature	5.5 C (41.9 F)	30 of 100 (Routine)
El Salto (Smn)	Mexico	Record high minimum temperature	12.8 C (55.0 F)	30 of 100 (Routine)
Santa Maria (Dge)	Mexico	Record high minimum temperature	17.8 C (64.0 F)	30 of 100 (Routine)
Maastricht	Netherlands	Record low minimum temperature	7.8 C (46.0 F)	30 of 100 (Routine)
Linkoeping-Malmslaett	Sweden	Record low maximum temperature	15.8 C (60.4 F)	30 of 100 (Routine)
Tulia	United States	Record daily precipitation	29.5 mm (1.2 in)	30 of 100 (Routine)
Alger-Dar El Beida	Algeria	Record high maximum temperature	42.4 C (108.3 F)	29 of 100 (Routine)
Sydney (Observatory Hill)	Australia	Record high minimum temperature	13.4 C (56.1 F)	29 of 100 (Routine)
Minto Surrey Street	Australia	Record daily precipitation	29.0 mm (1.1 in)	29 of 100 (Routine)

Counts by Type and Timescale

885 records

Records set or tied on 11 August 1987 by type: Highest daily maximum 128, Lowest daily maximum 146, Highest daily minimum 227, Lowest daily minimum 209, Heaviest daily rainfall 175.

Records on 11 August 1987 by type
Record type	Records
Highest daily maximum	128
Lowest daily maximum	146
Highest daily minimum	227
Lowest daily minimum	209
Heaviest daily rainfall	175
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 11 August 1987 by timescale: all-time 1, monthly 22, daily 862.

How Much Records Were Beaten By

641 broken records

Margins by which the 641 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 136.0. Ties are not counted.

Top 20 by Significance

11 August 1987

Top 20 records on 11 August 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 August 1987	Lithgow (Birdwood St), AU	daily rain	49.4 mm (1.9 in)	25.3 mm (1.0 in)	87 years	59 of 100 (Notable)
11 August 1987	Die Hoop, ZA	daily rain	72.0 mm (2.8 in)	46.1 mm (1.8 in)	41 years	56 of 100 (Notable)
11 August 1987	Baton Rouge Metro AP, US	monthly rain	201.7 mm (7.9 in)	71.9 mm (2.8 in)	4 years	56 of 100 (Notable)
11 August 1987	Mansfield 4 NW, US	daily rain	43.9 mm (1.7 in)	36.3 mm (1.4 in)	90 years	53 of 100 (Notable)
11 August 1987	Vastervik, SE	daily low min	5.0 C (41.0 F)	2.5 C (4.5 F)	103 years	50 of 100 (Notable)
11 August 1987	Mount Victoria (Mt Victoria (S, AU	daily rain	46.4 mm (1.8 in)	12.4 mm (0.5 in)	87 years	48 of 100 (Notable)
11 August 1987	Weissenburg, DE	daily low min	4.6 C (40.3 F)	2.4 C (4.3 F)	107 years	48 of 100 (Notable)
11 August 1987	Siauliai, LT	daily rain	48.2 mm (1.9 in)	32.9 mm (1.3 in)	12 years	48 of 100 (Notable)
11 August 1987	Maclean (McLachlan Street), AU	daily rain	50.8 mm (2.0 in)	15.2 mm (0.6 in)	93 years	46 of 100 (Notable)
11 August 1987	Worcester, ZA	daily rain	38.0 mm (1.5 in)	10.8 mm (0.4 in)	73 years	46 of 100 (Notable)
11 August 1987	Kinston 7 SE, US	daily rain	75.9 mm (3.0 in)	37.8 mm (1.5 in)	58 years	46 of 100 (Notable)
11 August 1987	Sedgefield (Bundajon), AU	daily rain	37.0 mm (1.5 in)	18.2 mm (0.7 in)	57 years	44 of 100 (Notable)
11 August 1987	Cherry Point MCAS, US	daily rain	133.1 mm (5.2 in)	69.1 mm (2.7 in)	32 years	44 of 100 (Notable)
11 August 1987	Tinnenburra, AU	daily rain	26.4 mm (1.0 in)	17.0 mm (0.7 in)	40 years	42 of 100 (Notable)
11 August 1987	Klaipeda, LT	daily rain	38.3 mm (1.5 in)	20.7 mm (0.8 in)	34 years	42 of 100 (Notable)
11 August 1987	Arivaca, US	monthly rain	55.6 mm (2.2 in)	3.8 mm (0.15 in)	67 years	41 of 100 (Notable)
11 August 1987	Bernburg/Saale (Nord), DE	daily low min	7.5 C (45.5 F)	1.6 C (2.9 F)	84 years	40 of 100 (Notable)
11 August 1987	Chemnitz, DE	daily low min	6.6 C (43.9 F)	0.6 C (1.1 F)	94 years	40 of 100 (Notable)
11 August 1987	Union de Tula, MX	daily rain	43.4 mm (1.7 in)	27.7 mm (1.1 in)	36 years	40 of 100 (Notable)
11 August 1987	White Cliffs (Tongo), AU	daily rain	25.9 mm (1.0 in)	6.8 mm (0.27 in)	65 years	39 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 885 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 1987-08-11: 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 20	615
20 to 40	22
40 to 60	1
60 to 80	2
80 to 100	0
100 to 120	0
120 to 140	1