Weather Records on 12 August 1973

442 weather records were set or tied worldwide on 12 August 1973. Highest significance: Monte Santo, BR.

Key Facts for 12 August 1973

On 12 August 1973, 442 weather records were set or tied at long-record stations worldwide.
135 were record highs and 111 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 6 monthly and 433 daily.
Monte Santo set a monthly record daily precipitation of 57.0 mm (2.2 in) on 12 August 1973.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 447 records.

Record Map

442 stations

442 station records on 12 August 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 August 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Monte Santo	Brazil	Record daily precipitation	57.0 mm (2.2 in)	68 of 100 (Major)
Bellefontaine	United States	Record daily precipitation	90.4 mm (3.6 in)	55 of 100 (Notable)
Mosman (Bapaume Road)	Australia	Record daily precipitation	78.5 mm (3.1 in)	54 of 100 (Notable)
Marysville	United States	Record daily precipitation	77.7 mm (3.1 in)	54 of 100 (Notable)
Randwick Bowling Club	Australia	Record daily precipitation	58.2 mm (2.3 in)	50 of 100 (Notable)
Urbana Wrf	United States	Record daily precipitation	74.2 mm (2.9 in)	50 of 100 (Notable)
Havana	United States	Record daily precipitation	78.2 mm (3.1 in)	49 of 100 (Notable)
Noblesville River	United States	Record daily precipitation	76.2 mm (3.0 in)	48 of 100 (Notable)
Holton	United States	Record daily precipitation	89.4 mm (3.5 in)	46 of 100 (Notable)
Sidney 2 N	United States	Record daily precipitation	94.7 mm (3.7 in)	45 of 100 (Notable)
Russell Springs	United States	Record daily precipitation	41.4 mm (1.6 in)	44 of 100 (Notable)
Balgowlah (Ethel Street)	Australia	Record daily precipitation	71.1 mm (2.8 in)	43 of 100 (Notable)
Chatswood Council Depot	Australia	Record daily precipitation	39.4 mm (1.6 in)	43 of 100 (Notable)
Matanuska Exp Farm	United States	Record daily precipitation	27.7 mm (1.1 in)	43 of 100 (Notable)
Vaucluse	Australia	Record daily precipitation	75.4 mm (3.0 in)	42 of 100 (Notable)
Deland 1 SSE	United States	Record low minimum temperature	16.7 C (62.1 F)	41 of 100 (Notable)
Benkelman 1N	United States	Record daily precipitation	42.7 mm (1.7 in)	41 of 100 (Notable)
Lakeview 3 NE	United States	Record daily precipitation	52.8 mm (2.1 in)	41 of 100 (Notable)
Earlwood Bowling Club	Australia	Record daily precipitation	36.8 mm (1.4 in)	39 of 100 (Notable)
Luroy	Norway	Record daily precipitation	76.4 mm (3.0 in)	39 of 100 (Notable)
Tibaji	Brazil	Record daily precipitation	43.0 mm (1.7 in)	38 of 100 (Notable)
Cromer Golf Club	Australia	Record daily precipitation	39.4 mm (1.6 in)	37 of 100 (Notable)
Quinter	United States	Record daily precipitation	57.2 mm (2.3 in)	37 of 100 (Notable)
Delaware	United States	Record daily precipitation	43.2 mm (1.7 in)	37 of 100 (Notable)
Riverview Observatory	Australia	Record daily precipitation	32.5 mm (1.3 in)	36 of 100 (Notable)
Augsburg (Sankt Stephan)	Germany	Record high minimum temperature	17.0 C (62.6 F)	36 of 100 (Notable)
El Palmito	Mexico	Record daily precipitation	40.9 mm (1.6 in)	36 of 100 (Notable)
Liafoss	Norway	Record daily precipitation	58.7 mm (2.3 in)	36 of 100 (Notable)
Bondi Bowling Club	Australia	Record daily precipitation	66.8 mm (2.6 in)	35 of 100 (Notable)
Sydney (Observatory Hill)	Australia	Record daily precipitation	49.8 mm (2.0 in)	35 of 100 (Notable)
Northbridge (Sailors Bay)	Australia	Record daily precipitation	59.7 mm (2.4 in)	35 of 100 (Notable)
San Felipe Orizatlan (Smn)	Mexico	Record daily precipitation	119.9 mm (4.7 in)	35 of 100 (Notable)
Gove 4W	United States	Record daily precipitation	38.6 mm (1.5 in)	35 of 100 (Notable)
Sydney Botanic Gardens	Australia	Record daily precipitation	52.8 mm (2.1 in)	34 of 100 (Routine)
Santander Centro	Spain	Record high maximum temperature	31.6 C (88.9 F)	34 of 100 (Routine)
Millinocket	United States	Record daily precipitation	56.4 mm (2.2 in)	34 of 100 (Routine)
Irwin	United States	Record daily precipitation	63.5 mm (2.5 in)	34 of 100 (Routine)
Prospect	United States	Record daily precipitation	58.4 mm (2.3 in)	34 of 100 (Routine)
Versailles	United States	Record daily precipitation	55.1 mm (2.2 in)	34 of 100 (Routine)
Gaffney 6 E	United States	Record daily precipitation	85.6 mm (3.4 in)	34 of 100 (Routine)
Wollstonecraft	Australia	Record daily precipitation	44.2 mm (1.7 in)	33 of 100 (Routine)
Gotnja	Russia	Record daily precipitation	35.3 mm (1.4 in)	33 of 100 (Routine)
Timasevskaja	Russia	Record daily precipitation	33.5 mm (1.3 in)	33 of 100 (Routine)
Bar Harbor 3 NW	United States	Record high minimum temperature	19.4 C (66.9 F)	33 of 100 (Routine)
Greenville Wtp	United States	Record daily precipitation	38.4 mm (1.5 in)	33 of 100 (Routine)
Rostov-Na-Donu	Russia	Record daily precipitation	25.1 mm (1.0 in)	32 of 100 (Routine)
New Bedford Coop	United States	Record high minimum temperature	22.8 C (73.0 F)	32 of 100 (Routine)
Bexley Bowling Club	Australia	Record daily precipitation	36.8 mm (1.4 in)	31 of 100 (Routine)
Sans Souci (Public School)	Australia	Record daily precipitation	34.5 mm (1.4 in)	31 of 100 (Routine)
Kenton	United States	Record daily precipitation	36.3 mm (1.4 in)	31 of 100 (Routine)
La Rue	United States	Record daily precipitation	31.0 mm (1.2 in)	31 of 100 (Routine)
Coupeville 1 S	United States	Record high minimum temperature	13.3 C (55.9 F)	31 of 100 (Routine)
Holy Cross	United States	Record low minimum temperature	2.2 C (36.0 F)	31 of 100 (Routine)
Sahuaripa	Mexico	Record daily precipitation	38.4 mm (1.5 in)	30 of 100 (Routine)
Goliad	United States	Record daily precipitation	31.8 mm (1.3 in)	30 of 100 (Routine)
Wyee (Wyee Farms Rd)	Australia	Record daily precipitation	26.9 mm (1.1 in)	29 of 100 (Routine)
St John's A	Canada	Record daily precipitation	52.6 mm (2.1 in)	29 of 100 (Routine)
Puerto Vallarta	Mexico	Record daily precipitation	79.0 mm (3.1 in)	29 of 100 (Routine)
Apatzingan (Smn)	Mexico	Record high minimum temperature	27.2 C (81.0 F)	29 of 100 (Routine)
Juchitan de Zaragoza	Mexico	Record high maximum temperature	40.6 C (105.1 F)	29 of 100 (Routine)

Counts by Type and Timescale

442 records

Records set or tied on 12 August 1973 by type: Highest daily maximum 52, Lowest daily maximum 75, Highest daily minimum 83, Lowest daily minimum 36, Heaviest daily rainfall 196.

Records on 12 August 1973 by type
Record type	Records
Highest daily maximum	52
Lowest daily maximum	75
Highest daily minimum	83
Lowest daily minimum	36
Heaviest daily rainfall	196
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 12 August 1973 by timescale: all-time 3, monthly 6, daily 433.

How Much Records Were Beaten By

343 broken records

Margins by which the 343 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 100.1. Ties are not counted.

Top 20 by Significance

12 August 1973

Top 20 records on 12 August 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 August 1973	Monte Santo, BR	monthly rain	57.0 mm (2.2 in)	16.7 mm (0.7 in)	40 years	68 of 100 (Major)
12 August 1973	Bellefontaine, US	daily rain	90.4 mm (3.6 in)	55.3 mm (2.2 in)	24 years	55 of 100 (Notable)
12 August 1973	Mosman (Bapaume Road), AU	daily rain	78.5 mm (3.1 in)	38.1 mm (1.5 in)	74 years	54 of 100 (Notable)
12 August 1973	Marysville, US	daily rain	77.7 mm (3.1 in)	44.9 mm (1.8 in)	42 years	54 of 100 (Notable)
12 August 1973	Randwick Bowling Club, AU	daily rain	58.2 mm (2.3 in)	35.6 mm (1.4 in)	64 years	50 of 100 (Notable)
12 August 1973	Urbana Wrf, US	daily rain	74.2 mm (2.9 in)	53.1 mm (2.1 in)	12 years	50 of 100 (Notable)
12 August 1973	Havana, US	daily rain	78.2 mm (3.1 in)	41.1 mm (1.6 in)	48 years	49 of 100 (Notable)
12 August 1973	Noblesville River, US	daily rain	76.2 mm (3.0 in)	39.4 mm (1.6 in)	24 years	48 of 100 (Notable)
12 August 1973	Holton, US	daily rain	89.4 mm (3.5 in)	39.9 mm (1.6 in)	56 years	46 of 100 (Notable)
12 August 1973	Sidney 2 N, US	monthly rain	94.7 mm (3.7 in)	10.1 mm (0.4 in)	63 years	45 of 100 (Notable)
12 August 1973	Russell Springs, US	daily rain	41.4 mm (1.6 in)	26.2 mm (1.0 in)	63 years	44 of 100 (Notable)
12 August 1973	Balgowlah (Ethel Street), AU	daily rain	71.1 mm (2.8 in)	51.8 mm (2.0 in)	20 years	43 of 100 (Notable)
12 August 1973	Chatswood Council Depot, AU	daily rain	39.4 mm (1.6 in)	22.9 mm (0.9 in)	73 years	43 of 100 (Notable)
12 August 1973	Matanuska Exp Farm, US	daily rain	27.7 mm (1.1 in)	18.6 mm (0.7 in)	27 years	43 of 100 (Notable)
12 August 1973	Vaucluse, AU	daily rain	75.4 mm (3.0 in)	49.7 mm (2.0 in)	20 years	42 of 100 (Notable)
12 August 1973	Deland 1 SSE, US	daily low min	16.7 C (62.1 F)	2.2 C (4.0 F)	56 years	41 of 100 (Notable)
12 August 1973	Benkelman 1N, US	daily rain	42.7 mm (1.7 in)	17.3 mm (0.7 in)	72 years	41 of 100 (Notable)
12 August 1973	Lakeview 3 NE, US	daily rain	52.8 mm (2.1 in)	32.0 mm (1.3 in)	36 years	41 of 100 (Notable)
12 August 1973	Earlwood Bowling Club, AU	daily rain	36.8 mm (1.4 in)	25.9 mm (1.0 in)	30 years	39 of 100 (Notable)
12 August 1973	Luroy, NO	daily rain	76.4 mm (3.0 in)	41.8 mm (1.6 in)	27 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 1973

Records set or tied on this calendar date in each year from 1793 to 1973. 1973 had 442 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 1973-08-12: 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	302
20 to 40	32
40 to 60	8
60 to 80	0
80 to 100	0
100 to 120	1