Weather Records on 12 August 1974

560 weather records were set or tied worldwide on 12 August 1974. Highest significance: Hines Hill, AU.

Key Facts for 12 August 1974

On 12 August 1974, 560 weather records were set or tied at long-record stations worldwide.
70 were record highs and 238 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 10 monthly and 550 daily.
Hines Hill set a daily record precipitation of 31.0 mm (1.2 in) on 12 August 1974.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 447 records.

Record Map

560 stations

560 station records on 12 August 1974 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 August 1974: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hines Hill	Australia	Record daily precipitation	31.0 mm (1.2 in)	63 of 100 (Major)
Valley View Lock 9	United States	Record daily precipitation	96.0 mm (3.8 in)	57 of 100 (Notable)
McCamey	United States	Record daily precipitation	51.6 mm (2.0 in)	54 of 100 (Notable)
Rainier Paradise Rs	United States	Record snow depth	71.1 cm (28.0 in)	52 of 100 (Notable)
Dalwallinu Comparison	Australia	Record daily precipitation	27.4 mm (1.1 in)	51 of 100 (Notable)
Toledo 3N	United States	Record daily precipitation	81.5 mm (3.2 in)	51 of 100 (Notable)
Ford Lock 1O	United States	Record daily precipitation	89.2 mm (3.5 in)	51 of 100 (Notable)
Beaver Mines	Canada	Record daily precipitation	40.1 mm (1.6 in)	50 of 100 (Notable)
Port Washington	United States	Record daily precipitation	34.5 mm (1.4 in)	49 of 100 (Notable)
Narembeen	Australia	Record daily precipitation	29.0 mm (1.1 in)	48 of 100 (Notable)
Morgan 1 W	United States	Record high minimum temperature	26.7 C (80.1 F)	47 of 100 (Notable)
Grandfalls 3SSE	United States	Record daily precipitation	62.0 mm (2.4 in)	46 of 100 (Notable)
Wynne	United States	Record daily precipitation	63.0 mm (2.5 in)	45 of 100 (Notable)
Greenville 6 N	United States	Record daily precipitation	73.9 mm (2.9 in)	45 of 100 (Notable)
Maroonah	Australia	Record daily precipitation	30.0 mm (1.2 in)	44 of 100 (Notable)
Blackleaf	United States	Record low maximum temperature	8.9 C (48.0 F)	43 of 100 (Notable)
Manyberries Cda	Canada	Record daily precipitation	27.7 mm (1.1 in)	40 of 100 (Notable)
Port Hastings	Canada	Record high maximum temperature	28.9 C (84.0 F)	40 of 100 (Notable)
Belka	Australia	Record daily precipitation	27.4 mm (1.1 in)	39 of 100 (Notable)
Kaslo	Canada	Record daily precipitation	30.5 mm (1.2 in)	39 of 100 (Notable)
Clinton	United States	Record low minimum temperature	5.6 C (42.1 F)	39 of 100 (Notable)
Codg Codgen	Australia	Record daily precipitation	35.0 mm (1.4 in)	38 of 100 (Notable)
Mountain View Birdseye	Canada	Record daily precipitation	33.5 mm (1.3 in)	38 of 100 (Notable)
Guntersville	United States	Record daily precipitation	64.0 mm (2.5 in)	38 of 100 (Notable)
Little Hickman Lock 8	United States	Record daily precipitation	68.3 mm (2.7 in)	38 of 100 (Notable)
Brady	United States	Record daily precipitation	53.3 mm (2.1 in)	38 of 100 (Notable)
Mount Phillip	Australia	Record daily precipitation	31.0 mm (1.2 in)	37 of 100 (Notable)
Richmond	United States	Record daily precipitation	43.2 mm (1.7 in)	36 of 100 (Notable)
Kayenta	United States	Record low minimum temperature	2.2 C (36.0 F)	35 of 100 (Notable)
Fremantle	Australia	Record daily precipitation	30.0 mm (1.2 in)	34 of 100 (Routine)
Williamsburg 1E	United States	Record daily precipitation	64.0 mm (2.5 in)	34 of 100 (Routine)
Bernalillo	United States	Record low minimum temperature	8.9 C (48.0 F)	34 of 100 (Routine)
Saint Paul Is AP	United States	Record daily precipitation	26.4 mm (1.0 in)	34 of 100 (Routine)
Fort Macleod	Canada	Record daily precipitation	32.5 mm (1.3 in)	33 of 100 (Routine)
Mount James	Australia	Record daily precipitation	26.0 mm (1.0 in)	32 of 100 (Routine)
Huelva	Spain	Record high minimum temperature	25.0 C (77.0 F)	32 of 100 (Routine)
Cass Lake	United States	Record daily precipitation	39.9 mm (1.6 in)	32 of 100 (Routine)
El-Golea	Algeria	Record low minimum temperature	19.8 C (67.6 F)	31 of 100 (Routine)
Greenville 2 NE	United States	Record high minimum temperature	20.0 C (68.0 F)	31 of 100 (Routine)
Plainview	United States	Record daily precipitation	33.0 mm (1.3 in)	31 of 100 (Routine)
Collinsville	United States	Record daily precipitation	53.3 mm (2.1 in)	30 of 100 (Routine)
Belle Plaine	United States	Record daily precipitation	60.2 mm (2.4 in)	30 of 100 (Routine)
Dallas FAA AP	United States	Record daily precipitation	51.1 mm (2.0 in)	30 of 100 (Routine)
Wadderin	Australia	Record daily precipitation	25.0 mm (1.0 in)	29 of 100 (Routine)
Sarajevo	Bosnia and Herzegovina	Record low minimum temperature	6.9 C (44.4 F)	29 of 100 (Routine)
Carway	Canada	Record low maximum temperature	12.8 C (55.0 F)	29 of 100 (Routine)
Haileybury	Canada	Record high minimum temperature	20.0 C (68.0 F)	29 of 100 (Routine)
Szeged	Hungary	Record low maximum temperature	15.4 C (59.7 F)	29 of 100 (Routine)
Cimarron 4 SW	United States	Record low minimum temperature	6.7 C (44.1 F)	29 of 100 (Routine)
Dufur	United States	Record low minimum temperature	1.1 C (34.0 F)	29 of 100 (Routine)
Yurecuaro	Mexico	Record low minimum temperature	12.8 C (55.0 F)	28 of 100 (Routine)
Bailey	United States	Record low minimum temperature	-1.1 C (30.0 F)	28 of 100 (Routine)
Beaver Is	United States	Record high minimum temperature	18.9 C (66.0 F)	28 of 100 (Routine)
Browning	United States	Record low maximum temperature	14.4 C (57.9 F)	28 of 100 (Routine)
Pearl	United States	Record low minimum temperature	14.4 C (57.9 F)	28 of 100 (Routine)
High River	Canada	Record low maximum temperature	7.8 C (46.0 F)	27 of 100 (Routine)
Kleve	Germany	Record low maximum temperature	16.1 C (61.0 F)	27 of 100 (Routine)
Nizhneangarsk	Russia	Record daily precipitation	25.2 mm (1.0 in)	27 of 100 (Routine)
McNary 2N	United States	Record low minimum temperature	0.6 C (33.1 F)	27 of 100 (Routine)
Summerville	United States	Record daily precipitation	44.7 mm (1.8 in)	27 of 100 (Routine)

Counts by Type and Timescale

560 records

Records set or tied on 12 August 1974 by type: Highest daily maximum 23, Lowest daily maximum 101, Highest daily minimum 47, Lowest daily minimum 137, Heaviest daily rainfall 251, Deepest snow cover 1.

Records on 12 August 1974 by type
Record type	Records
Highest daily maximum	23
Lowest daily maximum	101
Highest daily minimum	47
Lowest daily minimum	137
Heaviest daily rainfall	251
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 12 August 1974 by timescale: all-time 0, monthly 10, daily 550.

How Much Records Were Beaten By

442 broken records

Margins by which the 442 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 711.0. Ties are not counted.

Top 20 by Significance

12 August 1974

Top 20 records on 12 August 1974 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 August 1974	Hines Hill, AU	daily rain	31.0 mm (1.2 in)	26.9 mm (1.1 in)	59 years	63 of 100 (Major)
12 August 1974	Valley View Lock 9, US	daily rain	96.0 mm (3.8 in)	63.0 mm (2.5 in)	41 years	57 of 100 (Notable)
12 August 1974	McCamey, US	daily rain	51.6 mm (2.0 in)	50.3 mm (2.0 in)	33 years	54 of 100 (Notable)
12 August 1974	Rainier Paradise Rs, US	daily snow depth	71.1 cm (28.0 in)	71.1 cm (28.0 in)	25 years	52 of 100 (Notable)
12 August 1974	Dalwallinu Comparison, AU	daily rain	27.4 mm (1.1 in)	16.2 mm (0.6 in)	39 years	51 of 100 (Notable)
12 August 1974	Toledo 3N, US	daily rain	81.5 mm (3.2 in)	45.7 mm (1.8 in)	51 years	51 of 100 (Notable)
12 August 1974	Ford Lock 1O, US	daily rain	89.2 mm (3.5 in)	70.9 mm (2.8 in)	21 years	51 of 100 (Notable)
12 August 1974	Beaver Mines, CA	daily rain	40.1 mm (1.6 in)	34.8 mm (1.4 in)	32 years	50 of 100 (Notable)
12 August 1974	Port Washington, US	daily rain	34.5 mm (1.4 in)	24.3 mm (1.0 in)	73 years	49 of 100 (Notable)
12 August 1974	Narembeen, AU	daily rain	29.0 mm (1.1 in)	14.5 mm (0.6 in)	44 years	48 of 100 (Notable)
12 August 1974	Morgan 1 W, US	daily high min	26.7 C (80.1 F)	3.4 C (6.1 F)	79 years	47 of 100 (Notable)
12 August 1974	Grandfalls 3SSE, US	daily rain	62.0 mm (2.4 in)	60.7 mm (2.4 in)	3 years	46 of 100 (Notable)
12 August 1974	Wynne, US	daily rain	63.0 mm (2.5 in)	39.1 mm (1.5 in)	60 years	45 of 100 (Notable)
12 August 1974	Greenville 6 N, US	daily rain	73.9 mm (2.9 in)	43.9 mm (1.7 in)	24 years	45 of 100 (Notable)
12 August 1974	Maroonah, AU	daily rain	30.0 mm (1.2 in)	21.1 mm (0.8 in)	44 years	44 of 100 (Notable)
12 August 1974	Blackleaf, US	daily low max	8.9 C (48.0 F)	9.4 C (16.9 F)	64 years	43 of 100 (Notable)
12 August 1974	Manyberries Cda, CA	daily rain	27.7 mm (1.1 in)	18.6 mm (0.7 in)	27 years	40 of 100 (Notable)
12 August 1974	Port Hastings, CA	daily high max	28.9 C (84.0 F)	0.6 C (1.1 F)	97 years	40 of 100 (Notable)
12 August 1974	Belka, AU	daily rain	27.4 mm (1.1 in)	9.1 mm (0.36 in)	44 years	39 of 100 (Notable)
12 August 1974	Kaslo, CA	daily rain	30.5 mm (1.2 in)	15.8 mm (0.6 in)	11 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 1974

Records set or tied on this calendar date in each year from 1793 to 1974. 1974 had 560 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 1974-08-12: 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 100	441
100 to 200	0
200 to 300	0
300 to 400	0
400 to 500	0
500 to 600	0
600 to 700	0
700 to 800	1