Weather Records on 30 August 1974

838 weather records were set or tied worldwide on 30 August 1974. Highest significance: Bloomsbury Post Office, AU.

Key Facts for 30 August 1974

On 30 August 1974, 838 weather records were set or tied at long-record stations worldwide.
201 were record highs and 198 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 45 monthly and 792 daily.
Bloomsbury Post Office set a monthly record daily precipitation of 124.0 mm (4.9 in) on 30 August 1974.
Across 169 earlier years (1806 to 2026) the same calendar date averaged 421 records.

Record Map

838 stations

838 station records on 30 August 1974 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 August 1974: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bloomsbury Post Office	Australia	Record daily precipitation	124.0 mm (4.9 in)	64 of 100 (Major)
Strathmuir	Australia	Record daily precipitation	66.0 mm (2.6 in)	59 of 100 (Notable)
Dutson	Australia	Record daily precipitation	49.9 mm (2.0 in)	59 of 100 (Notable)
Mena	United States	Record daily precipitation	84.3 mm (3.3 in)	59 of 100 (Notable)
Milman	Australia	Record daily precipitation	118.0 mm (4.6 in)	58 of 100 (Notable)
Marlborough Post Office	Australia	Record daily precipitation	68.0 mm (2.7 in)	57 of 100 (Notable)
Bastrop	United States	Record daily precipitation	75.9 mm (3.0 in)	57 of 100 (Notable)
Middletown	United States	Record daily precipitation	46.2 mm (1.8 in)	57 of 100 (Notable)
Plain Dealing	United States	Record daily precipitation	93.2 mm (3.7 in)	56 of 100 (Notable)
Pacific Heights	Australia	Record daily precipitation	79.0 mm (3.1 in)	53 of 100 (Notable)
Cape Capricorn Lighthouse	Australia	Record daily precipitation	37.0 mm (1.5 in)	53 of 100 (Notable)
Taylorsville 2SW	United States	Record daily precipitation	69.3 mm (2.7 in)	53 of 100 (Notable)
Huntsville	United States	Record daily precipitation	125.5 mm (4.9 in)	53 of 100 (Notable)
Riomedina	United States	Record daily precipitation	148.6 mm (5.9 in)	53 of 100 (Notable)
Banksia Station	Australia	Record daily precipitation	69.8 mm (2.7 in)	52 of 100 (Notable)
El Dorado Goodwin Fld	United States	Record daily precipitation	87.4 mm (3.4 in)	52 of 100 (Notable)
St Lawrence Post Office	Australia	Record daily precipitation	49.0 mm (1.9 in)	51 of 100 (Notable)
Donora 1 SW	United States	Record daily precipitation	64.8 mm (2.6 in)	50 of 100 (Notable)
Macknade Sugar Mill	Australia	Record daily precipitation	78.4 mm (3.1 in)	49 of 100 (Notable)
Taunton	United States	Record daily precipitation	69.6 mm (2.7 in)	49 of 100 (Notable)
Rockhampton Aero	Australia	Record daily precipitation	65.0 mm (2.6 in)	48 of 100 (Notable)
Nicholson (Yendalock)	Australia	Record daily precipitation	141.2 mm (5.6 in)	47 of 100 (Notable)
Seaspray (Burong)	Australia	Record daily precipitation	47.0 mm (1.9 in)	47 of 100 (Notable)
Tamga-In-Kirgiz	Kyrgyzstan	Record daily precipitation	36.1 mm (1.4 in)	47 of 100 (Notable)
Port Jervis	United States	Record daily precipitation	36.1 mm (1.4 in)	47 of 100 (Notable)
Moonmera	Australia	Record daily precipitation	33.6 mm (1.3 in)	46 of 100 (Notable)
Borinquen AP	Puerto Rico [United States]	Record daily precipitation	88.9 mm (3.5 in)	46 of 100 (Notable)
Taylor	United States	Record daily precipitation	100.1 mm (3.9 in)	46 of 100 (Notable)
Summerfield 2 NE	United States	Record daily precipitation	60.2 mm (2.4 in)	46 of 100 (Notable)
Halifax Macrossan St	Australia	Record daily precipitation	91.0 mm (3.6 in)	45 of 100 (Notable)
San Juan City	Puerto Rico [United States]	Record daily precipitation	95.5 mm (3.8 in)	45 of 100 (Notable)
Crockett	United States	Record daily precipitation	158.0 mm (6.2 in)	45 of 100 (Notable)
New Martinsville 4 NNE	United States	Record daily precipitation	43.4 mm (1.7 in)	45 of 100 (Notable)
Bogie River	Australia	Record daily precipitation	70.0 mm (2.8 in)	44 of 100 (Notable)
Vanceburg	United States	Record daily precipitation	57.2 mm (2.3 in)	44 of 100 (Notable)
Mohonk Lake	United States	Record daily precipitation	60.7 mm (2.4 in)	44 of 100 (Notable)
La Grange	United States	Record daily precipitation	113.5 mm (4.5 in)	44 of 100 (Notable)
Madisonville	United States	Record daily precipitation	92.7 mm (3.6 in)	44 of 100 (Notable)
Ireland	United States	Record daily precipitation	56.6 mm (2.2 in)	44 of 100 (Notable)
East Sale Airport	Australia	Record daily precipitation	44.4 mm (1.7 in)	43 of 100 (Notable)
Arecibo 3 ESE	Puerto Rico [United States]	Record daily precipitation	108.0 mm (4.3 in)	42 of 100 (Notable)
Cidra 1 E	Puerto Rico [United States]	Record daily precipitation	81.5 mm (3.2 in)	42 of 100 (Notable)
Barnesville	United States	Record daily precipitation	46.0 mm (1.8 in)	42 of 100 (Notable)
Webster Springs	United States	Record daily precipitation	38.6 mm (1.5 in)	42 of 100 (Notable)
Valley of Lagoons	Australia	Record daily precipitation	50.0 mm (2.0 in)	41 of 100 (Notable)
Hope 3 NE	United States	Record daily precipitation	61.0 mm (2.4 in)	41 of 100 (Notable)
Rangely 1E	United States	Record low minimum temperature	-4.4 C (24.1 F)	41 of 100 (Notable)
Cynthiana	United States	Record daily precipitation	38.9 mm (1.5 in)	41 of 100 (Notable)
Charleroi Lock 4	United States	Record daily precipitation	34.3 mm (1.4 in)	41 of 100 (Notable)
Pickens 1	United States	Record daily precipitation	57.9 mm (2.3 in)	41 of 100 (Notable)
Byfield Childs Road	Australia	Record daily precipitation	44.0 mm (1.7 in)	40 of 100 (Notable)
Glenlands	Australia	Record daily precipitation	30.6 mm (1.2 in)	40 of 100 (Notable)
Pine Ridge	United States	Record daily precipitation	49.5 mm (1.9 in)	40 of 100 (Notable)
Ithaca Cornell UNIV	United States	Record daily precipitation	30.0 mm (1.2 in)	40 of 100 (Notable)
Victoria Sugar Mill	Australia	Record daily precipitation	59.0 mm (2.3 in)	39 of 100 (Notable)
Clermont-Ferrand	France	Record daily precipitation	51.3 mm (2.0 in)	39 of 100 (Notable)
Isabela Substn	Puerto Rico [United States]	Record daily precipitation	80.8 mm (3.2 in)	39 of 100 (Notable)
Rodessa	United States	Record daily precipitation	80.5 mm (3.2 in)	39 of 100 (Notable)
Hillsboro	United States	Record daily precipitation	97.5 mm (3.8 in)	39 of 100 (Notable)
Mc Connellsville Lk 7	United States	Record daily precipitation	50.0 mm (2.0 in)	39 of 100 (Notable)

Counts by Type and Timescale

838 records

Records set or tied on 30 August 1974 by type: Highest daily maximum 80, Lowest daily maximum 124, Highest daily minimum 121, Lowest daily minimum 74, Heaviest daily rainfall 439.

Records on 30 August 1974 by type
Record type	Records
Highest daily maximum	80
Lowest daily maximum	124
Highest daily minimum	121
Lowest daily minimum	74
Heaviest daily rainfall	439
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 August 1974 by timescale: all-time 1, monthly 45, daily 792.

How Much Records Were Beaten By

693 broken records

Margins by which the 693 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 112.8. Ties are not counted.

Top 20 by Significance

30 August 1974

Top 20 records on 30 August 1974 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 August 1974	Bloomsbury Post Office, AU	monthly rain	124.0 mm (4.9 in)	35.1 mm (1.4 in)	73 years	64 of 100 (Major)
30 August 1974	Strathmuir, AU	monthly rain	66.0 mm (2.6 in)	33.0 mm (1.3 in)	27 years	59 of 100 (Notable)
30 August 1974	Dutson, AU	daily rain	49.9 mm (2.0 in)	25.8 mm (1.0 in)	41 years	59 of 100 (Notable)
30 August 1974	Mena, US	daily rain	84.3 mm (3.3 in)	49.0 mm (1.9 in)	81 years	59 of 100 (Notable)
30 August 1974	Milman, AU	monthly rain	118.0 mm (4.6 in)	63.4 mm (2.5 in)	10 years	58 of 100 (Notable)
30 August 1974	Marlborough Post Office, AU	daily rain	68.0 mm (2.7 in)	42.6 mm (1.7 in)	49 years	57 of 100 (Notable)
30 August 1974	Bastrop, US	daily rain	75.9 mm (3.0 in)	58.1 mm (2.3 in)	37 years	57 of 100 (Notable)
30 August 1974	Middletown, US	daily rain	46.2 mm (1.8 in)	38.3 mm (1.5 in)	47 years	57 of 100 (Notable)
30 August 1974	Plain Dealing, US	daily rain	93.2 mm (3.7 in)	50.0 mm (2.0 in)	55 years	56 of 100 (Notable)
30 August 1974	Pacific Heights, AU	monthly rain	79.0 mm (3.1 in)	15.5 mm (0.6 in)	68 years	53 of 100 (Notable)
30 August 1974	Cape Capricorn Lighthouse, AU	daily rain	37.0 mm (1.5 in)	24.3 mm (1.0 in)	49 years	53 of 100 (Notable)
30 August 1974	Taylorsville 2SW, US	daily rain	69.3 mm (2.7 in)	43.4 mm (1.7 in)	53 years	53 of 100 (Notable)
30 August 1974	Huntsville, US	daily rain	125.5 mm (4.9 in)	93.5 mm (3.7 in)	20 years	53 of 100 (Notable)
30 August 1974	Riomedina, US	daily rain	148.6 mm (5.9 in)	102.6 mm (4.0 in)	29 years	53 of 100 (Notable)
30 August 1974	Banksia Station, AU	daily rain	69.8 mm (2.7 in)	63.2 mm (2.5 in)	32 years	52 of 100 (Notable)
30 August 1974	El Dorado Goodwin Fld, US	daily rain	87.4 mm (3.4 in)	55.4 mm (2.2 in)	19 years	52 of 100 (Notable)
30 August 1974	St Lawrence Post Office, AU	daily rain	49.0 mm (1.9 in)	30.7 mm (1.2 in)	48 years	51 of 100 (Notable)
30 August 1974	Donora 1 SW, US	daily rain	64.8 mm (2.6 in)	50.8 mm (2.0 in)	20 years	50 of 100 (Notable)
30 August 1974	Macknade Sugar Mill, AU	monthly rain	78.4 mm (3.1 in)	15.4 mm (0.6 in)	56 years	49 of 100 (Notable)
30 August 1974	Taunton, US	daily rain	69.6 mm (2.7 in)	42.7 mm (1.7 in)	56 years	49 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

1806 to 1974

Records set or tied on this calendar date in each year from 1806 to 1974. 1974 had 838 records.

Counts for years before the ledger starts come from the same station rules.

Records on 08-30 in each year
Year	Records
1806	1
1807	4
1813	1
1814	2
1827	1
1829	1
1835	1
1838	1
1839	1
1845	4
1850	1
1851	2
1855	1
1857	1
1859	1
1864	2
1867	1
1869	1
1870	2
1874	1
1875	2
1876	1
1877	2
1878	1
1880	4
1881	2
1882	1
1884	1
1885	5
1886	7
1887	1
1888	1
1889	2
1890	5
1891	1
1892	3
1893	3
1894	2
1895	1
1896	1
1897	3
1898	3
1899	2
1900	6
1901	8
1902	12
1903	19
1904	13
1905	23
1906	29
1907	8
1908	10
1909	37
1910	15
1911	41
1912	60
1913	22
1914	23
1915	47
1916	17
1917	50
1918	45
1919	17
1920	78
1921	100
1922	65
1923	61
1924	283
1925	167
1926	173
1927	109
1928	327
1929	208
1930	245
1931	192
1932	1,102
1933	274
1934	519
1935	476
1936	191
1937	418
1938	233
1939	401
1940	346
1941	422
1942	385
1943	487
1944	491
1945	455
1946	545
1947	599
1948	519
1949	240
1950	481
1951	1,091
1952	316
1953	1,124
1954	516
1955	417
1956	479
1957	321
1958	363
1959	546
1960	356
1961	573
1962	387
1963	442
1964	422
1965	1,118
1966	500
1967	536
1968	729
1969	522
1970	423
1971	443
1972	579
1973	646
1974	838
1975	664
1976	679
1977	665
1978	825
1979	517
1980	572
1981	684
1982	770
1983	696
1984	1,127
1985	629
1986	1,768
1987	638
1988	881
1989	791
1990	983
1991	938
1992	1,697
1993	1,200
1994	601
1995	940
1996	1,385
1997	960
1998	1,278
1999	864
2000	1,189
2001	750
2002	801
2003	1,226
2004	1,087
2005	1,500
2006	989
2007	1,300
2008	678
2009	1,251
2010	1,552
2011	994
2012	1,087
2013	644
2014	558
2015	1,074
2016	552
2017	924
2018	616
2019	755
2020	671
2021	429
2022	1,077
2023	651
2024	912
2025	324
2026	733

Download the Data

Data for records on 1974-08-30: 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	597
20 to 40	73
40 to 60	13
60 to 80	7
80 to 100	1
100 to 120	2