Weather Records on 11 August 1975

753 weather records were set or tied worldwide on 11 August 1975. Highest significance: Port Elliot Caravan Park, AU.

Key Facts for 11 August 1975

On 11 August 1975, 753 weather records were set or tied at long-record stations worldwide.
284 were record highs and 162 were record lows, counting maximum and minimum temperature.
By timescale, 13 were all-time records, 21 monthly and 719 daily.
Port Elliot Caravan Park set a monthly record daily precipitation of 76.8 mm (3.0 in) on 11 August 1975.
Across 161 earlier years (1793 to 2026) the same calendar date averaged 459 records.

Record Map

753 stations

753 station records on 11 August 1975 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 August 1975: highest significance records shown on the map
Station	Country	Type	Value	Significance
Port Elliot Caravan Park	Australia	Record daily precipitation	76.8 mm (3.0 in)	81 of 100 (Exceptional)
Victor Harbor Comparison	Australia	Record daily precipitation	59.0 mm (2.3 in)	80 of 100 (Exceptional)
Eltham	Australia	Record daily precipitation	28.2 mm (1.1 in)	60 of 100 (Major)
Aach	Germany	Record daily precipitation	70.5 mm (2.8 in)	56 of 100 (Notable)
Isabela Substn	Puerto Rico [United States]	Record daily precipitation	88.4 mm (3.5 in)	56 of 100 (Notable)
Vastervik	Sweden	Record high maximum temperature	32.7 C (90.9 F)	52 of 100 (Notable)
Oksoey Fyr	Norway	Record high minimum temperature	21.3 C (70.3 F)	51 of 100 (Notable)
Redesdale	Australia	Record daily precipitation	27.8 mm (1.1 in)	50 of 100 (Notable)
Toorourrong Reservoir (Toorour	Australia	Record daily precipitation	29.6 mm (1.2 in)	49 of 100 (Notable)
Searchlight	United States	Record high minimum temperature	32.2 C (90.0 F)	48 of 100 (Notable)
Borinquen AP	Puerto Rico [United States]	Record daily precipitation	95.3 mm (3.8 in)	47 of 100 (Notable)
Jonkoping	Sweden	Record high maximum temperature	32.2 C (90.0 F)	47 of 100 (Notable)
Tranebjerg	Denmark	Record high maximum temperature	32.2 C (90.0 F)	46 of 100 (Notable)
Hamburg Fuhlsbuettel	Germany	Record high minimum temperature	22.4 C (72.3 F)	46 of 100 (Notable)
Utsira Fyr	Norway	Record high maximum temperature	27.2 C (81.0 F)	46 of 100 (Notable)
Putbus	Germany	Record high maximum temperature	30.7 C (87.3 F)	45 of 100 (Notable)
Utsira Fyr	Norway	Record high minimum temperature	20.2 C (68.4 F)	45 of 100 (Notable)
Schwangau-Horn	Germany	Record daily precipitation	75.0 mm (3.0 in)	44 of 100 (Notable)
San Juan City	Puerto Rico [United States]	Record daily precipitation	73.2 mm (2.9 in)	44 of 100 (Notable)
Nordby (Fano)	Denmark	Record high minimum temperature	20.0 C (68.0 F)	43 of 100 (Notable)
Kr. Ravensburg Weingarten	Germany	Record daily precipitation	48.2 mm (1.9 in)	43 of 100 (Notable)
Torungen Fyr	Norway	Record high minimum temperature	21.5 C (70.7 F)	43 of 100 (Notable)
Wrixum/Fohr	Germany	Record high maximum temperature	33.4 C (92.1 F)	42 of 100 (Notable)
Boonara	Australia	Record daily precipitation	30.0 mm (1.2 in)	41 of 100 (Notable)
Tubbut	Australia	Record daily precipitation	34.0 mm (1.3 in)	41 of 100 (Notable)
Glenburn	Australia	Record daily precipitation	30.4 mm (1.2 in)	41 of 100 (Notable)
Ariah Park Post Office	Australia	Record daily precipitation	29.6 mm (1.2 in)	40 of 100 (Notable)
Konstanz	Germany	Record daily precipitation	77.2 mm (3.0 in)	40 of 100 (Notable)
Cygnet River	Australia	Record daily precipitation	46.6 mm (1.8 in)	39 of 100 (Notable)
Wanless	Canada	Record daily precipitation	44.5 mm (1.8 in)	39 of 100 (Notable)
Ojo de Agua	Mexico	Record low minimum temperature	11.7 C (53.1 F)	39 of 100 (Notable)
Yandina Post Office	Australia	Record daily precipitation	37.0 mm (1.5 in)	38 of 100 (Notable)
Grenfell (Quondong Rd)	Australia	Record daily precipitation	25.5 mm (1.0 in)	38 of 100 (Notable)
Bremen-Seefahrtschule	Germany	Record high maximum temperature	34.7 C (94.5 F)	38 of 100 (Notable)
Penneshaw	Australia	Record daily precipitation	33.0 mm (1.3 in)	37 of 100 (Notable)
Freiburg	Germany	Record daily precipitation	41.9 mm (1.6 in)	37 of 100 (Notable)
Guayama 1SW	Puerto Rico [United States]	Record low maximum temperature	27.2 C (81.0 F)	37 of 100 (Notable)
Kalmar_Flygplats	Sweden	Record high maximum temperature	32.6 C (90.7 F)	37 of 100 (Notable)
Munchen-Nymphenburg	Germany	Record daily precipitation	26.5 mm (1.0 in)	36 of 100 (Notable)
Hamburg Fuhlsbuettel	Germany	Record high maximum temperature	32.8 C (91.0 F)	36 of 100 (Notable)
Vinga	Sweden	Record high minimum temperature	22.6 C (72.7 F)	36 of 100 (Notable)
Ft Duchesne	United States	Record high minimum temperature	17.8 C (64.0 F)	36 of 100 (Notable)
Brocken	Germany	Record high minimum temperature	17.3 C (63.1 F)	35 of 100 (Notable)
Orebro	Sweden	Record high maximum temperature	33.5 C (92.3 F)	35 of 100 (Notable)
Beaverdale 1 E	United States	Record daily precipitation	64.5 mm (2.5 in)	35 of 100 (Notable)
Port Lavaca 2	United States	Record low minimum temperature	21.1 C (70.0 F)	35 of 100 (Notable)
Mount Hope	Australia	Record daily precipitation	26.0 mm (1.0 in)	34 of 100 (Routine)
Avenel (Post Office)	Australia	Record daily precipitation	48.6 mm (1.9 in)	34 of 100 (Routine)
Vestervig	Denmark	Record high maximum temperature	30.2 C (86.4 F)	34 of 100 (Routine)
Bremen-Seefahrtschule	Germany	Record high minimum temperature	19.1 C (66.4 F)	34 of 100 (Routine)
Wrixum/Fohr	Germany	Record high minimum temperature	19.0 C (66.2 F)	34 of 100 (Routine)
Clausthal-Zellerfeld	Germany	Record high minimum temperature	18.6 C (65.5 F)	34 of 100 (Routine)
Arhangelsk	Russia	Record low minimum temperature	2.3 C (36.1 F)	34 of 100 (Routine)
Malmo	Sweden	Record high maximum temperature	32.6 C (90.7 F)	34 of 100 (Routine)
Kristianstad	Sweden	Record high maximum temperature	33.1 C (91.6 F)	34 of 100 (Routine)
Landsort	Sweden	Record high maximum temperature	28.8 C (83.8 F)	34 of 100 (Routine)
Armagh	United Kingdom	Record high minimum temperature	15.7 C (60.3 F)	34 of 100 (Routine)
Jever	Germany	Record high minimum temperature	21.9 C (71.4 F)	33 of 100 (Routine)
San Jose de Raices	Mexico	Record low minimum temperature	2.8 C (37.0 F)	33 of 100 (Routine)
Linkoeping-Malmslaett	Sweden	Record high maximum temperature	32.3 C (90.1 F)	33 of 100 (Routine)

Counts by Type and Timescale

753 records

Records set or tied on 11 August 1975 by type: Highest daily maximum 142, Lowest daily maximum 69, Highest daily minimum 142, Lowest daily minimum 93, Heaviest daily rainfall 307.

Records on 11 August 1975 by type
Record type	Records
Highest daily maximum	142
Lowest daily maximum	69
Highest daily minimum	142
Lowest daily minimum	93
Heaviest daily rainfall	307
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 11 August 1975 by timescale: all-time 13, monthly 21, daily 719.

How Much Records Were Beaten By

650 broken records

Margins by which the 650 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 61.2. Ties are not counted.

Top 20 by Significance

11 August 1975

Top 20 records on 11 August 1975 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 August 1975	Port Elliot Caravan Park, AU	monthly rain	76.8 mm (3.0 in)	40.2 mm (1.6 in)	71 years	81 of 100 (Exceptional)
11 August 1975	Victor Harbor Comparison, AU	monthly rain	59.0 mm (2.3 in)	22.2 mm (0.9 in)	71 years	80 of 100 (Exceptional)
11 August 1975	Eltham, AU	daily rain	28.2 mm (1.1 in)	16.8 mm (0.7 in)	57 years	60 of 100 (Major)
11 August 1975	Aach, DE	monthly rain	70.5 mm (2.8 in)	20.7 mm (0.8 in)	41 years	56 of 100 (Notable)
11 August 1975	Isabela Substn, PR	daily rain	88.4 mm (3.5 in)	61.2 mm (2.4 in)	32 years	56 of 100 (Notable)
11 August 1975	Vastervik, SE	daily high max	32.7 C (90.9 F)	4.7 C (8.5 F)	92 years	52 of 100 (Notable)
11 August 1975	Oksoey Fyr, NO	all-time high min	21.3 C (70.3 F)	0.6 C (1.1 F)	74 years	51 of 100 (Notable)
11 August 1975	Redesdale, AU	daily rain	27.8 mm (1.1 in)	15.6 mm (0.6 in)	65 years	50 of 100 (Notable)
11 August 1975	Toorourrong Reservoir (Toorour, AU	daily rain	29.6 mm (1.2 in)	14.1 mm (0.6 in)	57 years	49 of 100 (Notable)
11 August 1975	Searchlight, US	all-time high min	32.2 C (90.0 F)	2.2 C (4.0 F)	50 years	48 of 100 (Notable)
11 August 1975	Borinquen AP, PR	daily rain	95.3 mm (3.8 in)	55.2 mm (2.2 in)	14 years	47 of 100 (Notable)
11 August 1975	Jonkoping, SE	daily high max	32.2 C (90.0 F)	5.2 C (9.4 F)	73 years	47 of 100 (Notable)
11 August 1975	Tranebjerg, DK	all-time high max	32.2 C (90.0 F)	0.5 C (0.9 F)	50 years	46 of 100 (Notable)
11 August 1975	Hamburg Fuhlsbuettel, DE	monthly high min	22.4 C (72.3 F)	1.3 C (2.3 F)	82 years	46 of 100 (Notable)
11 August 1975	Utsira Fyr, NO	daily high max	27.2 C (81.0 F)	7.6 C (13.7 F)	28 years	46 of 100 (Notable)
11 August 1975	Putbus, DE	daily high max	30.7 C (87.3 F)	1.8 C (3.2 F)	106 years	45 of 100 (Notable)
11 August 1975	Utsira Fyr, NO	daily high min	20.2 C (68.4 F)	3.8 C (6.8 F)	64 years	45 of 100 (Notable)
11 August 1975	Schwangau-Horn, DE	daily rain	75.0 mm (3.0 in)	42.0 mm (1.7 in)	16 years	44 of 100 (Notable)
11 August 1975	San Juan City, PR	daily rain	73.2 mm (2.9 in)	40.4 mm (1.6 in)	16 years	44 of 100 (Notable)
11 August 1975	Nordby (Fano), DK	daily high min	20.0 C (68.0 F)	2.4 C (4.3 F)	73 years	43 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 1975

Records set or tied on this calendar date in each year from 1793 to 1975. 1975 had 753 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 1975-08-11: 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	590
10 to 20	43
20 to 30	11
30 to 40	0
40 to 50	4
50 to 60	1
60 to 70	1