Weather Records on 4 August 1973

748 weather records were set or tied worldwide on 4 August 1973. Highest significance: Mangaroon, AU.

Key Facts for 4 August 1973

On 4 August 1973, 748 weather records were set or tied at long-record stations worldwide.
84 were record highs and 256 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 23 monthly and 724 daily.
Mangaroon set a daily record precipitation of 40.6 mm (1.6 in) on 4 August 1973.
Across 165 earlier years (1815 to 2026) the same calendar date averaged 439 records.

Record Map

748 stations

748 station records on 4 August 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 August 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mangaroon	Australia	Record daily precipitation	40.6 mm (1.6 in)	62 of 100 (Major)
Kulu Halt	South Africa	Record daily precipitation	86.0 mm (3.4 in)	55 of 100 (Notable)
Maseru	Lesotho	Record daily precipitation	29.5 mm (1.2 in)	54 of 100 (Notable)
Amersfoort (Pol)	South Africa	Record daily precipitation	34.0 mm (1.3 in)	54 of 100 (Notable)
Kangela, Mtubatuba	South Africa	Record daily precipitation	75.3 mm (3.0 in)	51 of 100 (Notable)
Gingindlovu	South Africa	Record daily precipitation	46.5 mm (1.8 in)	49 of 100 (Notable)
Dunkeld	South Africa	Record daily precipitation	26.0 mm (1.0 in)	49 of 100 (Notable)
Mayaguez City	Puerto Rico [United States]	Record daily precipitation	86.6 mm (3.4 in)	48 of 100 (Notable)
Clifford Chambers	South Africa	Record daily precipitation	35.0 mm (1.4 in)	48 of 100 (Notable)
Florence 8 NE	United States	Record daily precipitation	101.1 mm (4.0 in)	47 of 100 (Notable)
Glen Eland	South Africa	Record daily precipitation	39.0 mm (1.5 in)	46 of 100 (Notable)
Dwaleni	Swaziland	Record daily precipitation	27.0 mm (1.1 in)	46 of 100 (Notable)
Mount Vernon	Australia	Record daily precipitation	32.8 mm (1.3 in)	45 of 100 (Notable)
Marlin	United States	Record low minimum temperature	17.2 C (63.0 F)	45 of 100 (Notable)
Zjulzja	Russia	Record daily precipitation	34.4 mm (1.4 in)	44 of 100 (Notable)
Quilimane	South Africa	Record daily precipitation	28.0 mm (1.1 in)	44 of 100 (Notable)
Ashburnham	United States	Record daily precipitation	49.3 mm (1.9 in)	43 of 100 (Notable)
Waynesboro 2 W	United States	Record low minimum temperature	15.0 C (59.0 F)	43 of 100 (Notable)
Amatikulu(Mill)	South Africa	Record daily precipitation	37.6 mm (1.5 in)	42 of 100 (Notable)
Mtunzini	South Africa	Record daily precipitation	57.3 mm (2.3 in)	42 of 100 (Notable)
Zaaiplaats	South Africa	Record daily precipitation	42.0 mm (1.7 in)	42 of 100 (Notable)
Mt Crosby	Australia	Record daily precipitation	26.7 mm (1.1 in)	41 of 100 (Notable)
Porto Real Do Colegio	Brazil	Record daily precipitation	25.2 mm (1.0 in)	41 of 100 (Notable)
Keremeos	Canada	Record high minimum temperature	20.6 C (69.1 F)	41 of 100 (Notable)
Waterford	South Africa	Record daily precipitation	31.4 mm (1.2 in)	41 of 100 (Notable)
Boschkloof	South Africa	Record daily precipitation	52.4 mm (2.1 in)	41 of 100 (Notable)
Uzur	Russia	Record daily precipitation	56.1 mm (2.2 in)	40 of 100 (Notable)
Roodepoort	South Africa	Record daily precipitation	25.0 mm (1.0 in)	40 of 100 (Notable)
Kranskop (Tnk)	South Africa	Record daily precipitation	33.5 mm (1.3 in)	40 of 100 (Notable)
Highlands	South Africa	Record daily precipitation	33.2 mm (1.3 in)	40 of 100 (Notable)
Riverview	South Africa	Record daily precipitation	77.0 mm (3.0 in)	39 of 100 (Notable)
Schreiber	Canada	Record daily precipitation	36.1 mm (1.4 in)	38 of 100 (Notable)
Nongoma	South Africa	Record daily precipitation	28.5 mm (1.1 in)	38 of 100 (Notable)
Monticello Muni AP	United States	Record low minimum temperature	15.0 C (59.0 F)	38 of 100 (Notable)
Petrozawodsk	Russia	Record daily precipitation	49.3 mm (1.9 in)	37 of 100 (Notable)
Kommissiepoort	South Africa	Record daily precipitation	29.0 mm (1.1 in)	37 of 100 (Notable)
Keble	South Africa	Record daily precipitation	31.1 mm (1.2 in)	37 of 100 (Notable)
Groot Rietvlei	South Africa	Record daily precipitation	41.1 mm (1.6 in)	37 of 100 (Notable)
Mallina	Australia	Record daily precipitation	34.3 mm (1.4 in)	36 of 100 (Notable)
Rocco	South Africa	Record daily precipitation	37.0 mm (1.5 in)	36 of 100 (Notable)
Wells	United States	Record low maximum temperature	23.3 C (73.9 F)	36 of 100 (Notable)
Coolum Beach Post Office	Australia	Record daily precipitation	39.4 mm (1.6 in)	35 of 100 (Notable)
Leribe	Lesotho	Record daily precipitation	26.0 mm (1.0 in)	35 of 100 (Notable)
Hattiesburg 5SW	United States	Record low minimum temperature	16.7 C (62.1 F)	35 of 100 (Notable)
Western River	Australia	Record daily precipitation	30.0 mm (1.2 in)	34 of 100 (Routine)
Uloa	South Africa	Record daily precipitation	114.0 mm (4.5 in)	34 of 100 (Routine)
Warden (Mag)	South Africa	Record daily precipitation	37.5 mm (1.5 in)	34 of 100 (Routine)
Berrings	South Africa	Record daily precipitation	28.5 mm (1.1 in)	34 of 100 (Routine)
Raleigh 4 SW	United States	Record daily precipitation	108.0 mm (4.3 in)	34 of 100 (Routine)
Luling	United States	Record low minimum temperature	17.2 C (63.0 F)	34 of 100 (Routine)
Southport Ridgeway Ave	Australia	Record daily precipitation	47.5 mm (1.9 in)	33 of 100 (Routine)
Kemchug	Russia	Record daily precipitation	36.1 mm (1.4 in)	33 of 100 (Routine)
Doornkop	South Africa	Record daily precipitation	36.0 mm (1.4 in)	33 of 100 (Routine)
Vrede-Mun	South Africa	Record daily precipitation	33.0 mm (1.3 in)	33 of 100 (Routine)
Valley Head	United States	Record low minimum temperature	12.2 C (54.0 F)	33 of 100 (Routine)
Bastrop	United States	Record low minimum temperature	16.7 C (62.1 F)	33 of 100 (Routine)
Hico	United States	Record low minimum temperature	13.9 C (57.0 F)	33 of 100 (Routine)
Minderoo	Australia	Record daily precipitation	28.4 mm (1.1 in)	32 of 100 (Routine)
American River	Australia	Record daily precipitation	35.6 mm (1.4 in)	32 of 100 (Routine)
Hiddensee-Vitte	Germany	Record daily precipitation	25.0 mm (1.0 in)	32 of 100 (Routine)

Counts by Type and Timescale

748 records

Records set or tied on 4 August 1973 by type: Highest daily maximum 19, Lowest daily maximum 80, Highest daily minimum 65, Lowest daily minimum 176, Heaviest daily rainfall 408.

Records on 4 August 1973 by type
Record type	Records
Highest daily maximum	19
Lowest daily maximum	80
Highest daily minimum	65
Lowest daily minimum	176
Heaviest daily rainfall	408
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 August 1973 by timescale: all-time 1, monthly 23, daily 724.

How Much Records Were Beaten By

627 broken records

Margins by which the 627 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 77.9. Ties are not counted.

Top 20 by Significance

4 August 1973

Top 20 records on 4 August 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 August 1973	Mangaroon, AU	daily rain	40.6 mm (1.6 in)	33.0 mm (1.3 in)	55 years	62 of 100 (Major)
4 August 1973	Kulu Halt, ZA	daily rain	86.0 mm (3.4 in)	77.9 mm (3.1 in)	35 years	55 of 100 (Notable)
4 August 1973	Maseru, LS	monthly rain	29.5 mm (1.2 in)	7.1 mm (0.28 in)	84 years	54 of 100 (Notable)
4 August 1973	Amersfoort (Pol), ZA	daily rain	34.0 mm (1.3 in)	23.6 mm (0.9 in)	60 years	54 of 100 (Notable)
4 August 1973	Kangela, Mtubatuba, ZA	daily rain	75.3 mm (3.0 in)	67.1 mm (2.6 in)	16 years	51 of 100 (Notable)
4 August 1973	Gingindlovu, ZA	daily rain	46.5 mm (1.8 in)	39.4 mm (1.6 in)	38 years	49 of 100 (Notable)
4 August 1973	Dunkeld, ZA	daily rain	26.0 mm (1.0 in)	25.5 mm (1.0 in)	30 years	49 of 100 (Notable)
4 August 1973	Mayaguez City, PR	daily rain	86.6 mm (3.4 in)	49.5 mm (1.9 in)	31 years	48 of 100 (Notable)
4 August 1973	Clifford Chambers, ZA	daily rain	35.0 mm (1.4 in)	35.0 mm (1.4 in)	46 years	48 of 100 (Notable)
4 August 1973	Florence 8 NE, US	daily rain	101.1 mm (4.0 in)	64.3 mm (2.5 in)	18 years	47 of 100 (Notable)
4 August 1973	Glen Eland, ZA	daily rain	39.0 mm (1.5 in)	36.5 mm (1.4 in)	16 years	46 of 100 (Notable)
4 August 1973	Dwaleni, SZ	daily rain	27.0 mm (1.1 in)	27.0 mm (1.1 in)	56 years	46 of 100 (Notable)
4 August 1973	Mount Vernon, AU	daily rain	32.8 mm (1.3 in)	32.8 mm (1.3 in)	34 years	45 of 100 (Notable)
4 August 1973	Marlin, US	daily low min	17.2 C (63.0 F)	3.9 C (7.0 F)	67 years	45 of 100 (Notable)
4 August 1973	Zjulzja, RU	daily rain	34.4 mm (1.4 in)	29.4 mm (1.2 in)	36 years	44 of 100 (Notable)
4 August 1973	Quilimane, ZA	daily rain	28.0 mm (1.1 in)	22.9 mm (0.9 in)	47 years	44 of 100 (Notable)
4 August 1973	Ashburnham, US	daily rain	49.3 mm (1.9 in)	19.1 mm (0.8 in)	67 years	43 of 100 (Notable)
4 August 1973	Waynesboro 2 W, US	daily low min	15.0 C (59.0 F)	3.3 C (5.9 F)	67 years	43 of 100 (Notable)
4 August 1973	Amatikulu(Mill), ZA	daily rain	37.6 mm (1.5 in)	33.6 mm (1.3 in)	24 years	42 of 100 (Notable)
4 August 1973	Mtunzini, ZA	daily rain	57.3 mm (2.3 in)	42.6 mm (1.7 in)	16 years	42 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

1815 to 1973

Records set or tied on this calendar date in each year from 1815 to 1973. 1973 had 748 records.

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

Records on 08-04 in each year
Year	Records
1815	1
1827	1
1830	2
1833	1
1835	1
1843	1
1846	1
1847	1
1848	1
1857	1
1859	2
1860	2
1863	1
1865	3
1867	1
1868	1
1870	1
1871	1
1872	2
1874	3
1875	1
1878	3
1879	1
1881	2
1882	1
1883	1
1885	3
1886	1
1887	3
1888	4
1889	2
1890	1
1891	2
1893	2
1894	1
1895	3
1896	4
1897	3
1898	1
1899	7
1900	6
1902	4
1903	18
1904	11
1905	19
1906	14
1907	20
1908	31
1909	27
1910	17
1911	23
1912	51
1913	15
1914	33
1915	85
1916	97
1917	29
1918	95
1919	34
1920	79
1921	67
1922	68
1923	146
1924	132
1925	77
1926	334
1927	136
1928	352
1929	224
1930	698
1931	371
1932	258
1933	347
1934	521
1935	367
1936	719
1937	258
1938	489
1939	433
1940	236
1941	383
1942	303
1943	468
1944	662
1945	355
1946	265
1947	845
1948	558
1949	421
1950	666
1951	680
1952	465
1953	1,017
1954	426
1955	624
1956	437
1957	343
1958	533
1959	303
1960	331
1961	745
1962	470
1963	438
1964	885
1965	409
1966	552
1967	428
1968	280
1969	638
1970	415
1971	813
1972	773
1973	748
1974	1,040
1975	772
1976	801
1977	599
1978	1,051
1979	510
1980	998
1981	636
1982	703
1983	920
1984	722
1985	634
1986	905
1987	892
1988	1,204
1989	738
1990	1,013
1991	769
1992	754
1993	1,046
1994	1,265
1995	1,117
1996	1,143
1997	891
1998	1,423
1999	762
2000	840
2001	1,087
2002	928
2003	1,309
2004	968
2005	1,246
2006	1,131
2007	685
2008	883
2009	681
2010	1,665
2011	1,536
2012	738
2013	452
2014	980
2015	505
2016	732
2017	1,134
2018	760
2019	499
2020	778
2021	691
2022	1,185
2023	1,150
2024	809
2025	840
2026	1,044

Download the Data

Data for records on 1973-08-04: 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	492
10 to 20	92
20 to 30	27
30 to 40	10
40 to 50	3
50 to 60	0
60 to 70	2
70 to 80	1