Weather Records on 18 July 1973

976 weather records were set or tied worldwide on 18 July 1973. Highest significance: Bryah, AU.

Key Facts for 18 July 1973

On 18 July 1973, 976 weather records were set or tied at long-record stations worldwide.
85 were record highs and 192 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 20 monthly and 954 daily.
Bryah set a daily record precipitation of 39.9 mm (1.6 in) on 18 July 1973.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 459 records.

Record Map

976 stations

976 station records on 18 July 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 July 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bryah	Australia	Record daily precipitation	39.9 mm (1.6 in)	59 of 100 (Notable)
Wydgee	Australia	Record daily precipitation	31.0 mm (1.2 in)	57 of 100 (Notable)
Orford South	Australia	Record daily precipitation	56.1 mm (2.2 in)	54 of 100 (Notable)
Round Hill	Australia	Record daily precipitation	36.3 mm (1.4 in)	52 of 100 (Notable)
Lynton	Australia	Record daily precipitation	48.3 mm (1.9 in)	51 of 100 (Notable)
Tenindewa	Australia	Record daily precipitation	31.5 mm (1.2 in)	51 of 100 (Notable)
Chaval	Brazil	Record daily precipitation	30.2 mm (1.2 in)	51 of 100 (Notable)
Cogla Downs	Australia	Record daily precipitation	26.4 mm (1.0 in)	50 of 100 (Notable)
Carnamah	Australia	Record daily precipitation	30.0 mm (1.2 in)	50 of 100 (Notable)
Manarra	Australia	Record daily precipitation	37.1 mm (1.5 in)	50 of 100 (Notable)
Merredin	Australia	Record daily precipitation	29.2 mm (1.1 in)	50 of 100 (Notable)
Tanbar Station	Australia	Record daily precipitation	31.8 mm (1.3 in)	50 of 100 (Notable)
Desterro	Brazil	Record daily precipitation	30.0 mm (1.2 in)	50 of 100 (Notable)
Narndee	Australia	Record daily precipitation	66.3 mm (2.6 in)	49 of 100 (Notable)
Geraldton Airport	Australia	Record daily precipitation	71.9 mm (2.8 in)	49 of 100 (Notable)
Wyalkatchem	Australia	Record daily precipitation	27.2 mm (1.1 in)	49 of 100 (Notable)
Wallabadah (Woodton)	Australia	Record daily precipitation	43.2 mm (1.7 in)	49 of 100 (Notable)
Wandsworth (Strabanne)	Australia	Record daily precipitation	32.5 mm (1.3 in)	49 of 100 (Notable)
Balmorhea	United States	Record daily precipitation	48.3 mm (1.9 in)	49 of 100 (Notable)
Pakri	Estonia	Record daily precipitation	39.1 mm (1.5 in)	48 of 100 (Notable)
Warren 2 ENE	United States	Record daily precipitation	52.1 mm (2.1 in)	48 of 100 (Notable)
Clifton Post Office	Australia	Record daily precipitation	27.7 mm (1.1 in)	47 of 100 (Notable)
Tennyson	United States	Record daily precipitation	49.0 mm (1.9 in)	47 of 100 (Notable)
Narra Tarra	Australia	Record daily precipitation	62.2 mm (2.4 in)	46 of 100 (Notable)
Perenjori	Australia	Record daily precipitation	27.9 mm (1.1 in)	46 of 100 (Notable)
Tenindewa Bindu	Australia	Record daily precipitation	31.2 mm (1.2 in)	45 of 100 (Notable)
Jimbour State School	Australia	Record daily precipitation	25.1 mm (1.0 in)	45 of 100 (Notable)
Mount Irving	Australia	Record daily precipitation	27.4 mm (1.1 in)	45 of 100 (Notable)
Pittsworth	Australia	Record daily precipitation	32.5 mm (1.3 in)	45 of 100 (Notable)
Ytiniche	Australia	Record daily precipitation	31.0 mm (1.2 in)	44 of 100 (Notable)
Hamelin Pool	Australia	Record daily precipitation	29.2 mm (1.1 in)	43 of 100 (Notable)
Allora Post Office	Australia	Record daily precipitation	33.0 mm (1.3 in)	43 of 100 (Notable)
Sarajevo	Bosnia and Herzegovina	Record high minimum temperature	21.4 C (70.5 F)	43 of 100 (Notable)
Usina Itatinga	Brazil	Record daily precipitation	98.3 mm (3.9 in)	43 of 100 (Notable)
Dalwallinu Comparison	Australia	Record daily precipitation	26.9 mm (1.1 in)	42 of 100 (Notable)
Hvar	Croatia	Record high minimum temperature	27.0 C (80.6 F)	42 of 100 (Notable)
Toowoomba	Australia	Record daily precipitation	32.8 mm (1.3 in)	41 of 100 (Notable)
Huntingdon	Canada	Record low minimum temperature	8.3 C (46.9 F)	41 of 100 (Notable)
Tiirikoja	Estonia	Record daily precipitation	36.0 mm (1.4 in)	41 of 100 (Notable)
Malye Derbety	Russia	Record daily precipitation	30.4 mm (1.2 in)	41 of 100 (Notable)
Xantippe	Australia	Record daily precipitation	26.2 mm (1.0 in)	40 of 100 (Notable)
Del Norte 3ENE	United States	Record daily precipitation	27.9 mm (1.1 in)	40 of 100 (Notable)
Noongall	Australia	Record daily precipitation	26.9 mm (1.1 in)	39 of 100 (Notable)
Geraldton Town	Australia	Record daily precipitation	51.3 mm (2.0 in)	39 of 100 (Notable)
Urella	Australia	Record daily precipitation	31.8 mm (1.3 in)	39 of 100 (Notable)
Hakea	Australia	Record daily precipitation	29.7 mm (1.2 in)	39 of 100 (Notable)
Mount Pleasant Farm	Australia	Record daily precipitation	30.5 mm (1.2 in)	39 of 100 (Notable)
Merredin Research Station	Australia	Record daily precipitation	26.9 mm (1.1 in)	39 of 100 (Notable)
Craigie-Lea	Australia	Record daily precipitation	26.9 mm (1.1 in)	39 of 100 (Notable)
Mt Pleasant	United States	Record daily precipitation	46.0 mm (1.8 in)	39 of 100 (Notable)
Cullculli	Australia	Record daily precipitation	29.7 mm (1.2 in)	38 of 100 (Notable)
Bulyee	Australia	Record daily precipitation	27.4 mm (1.1 in)	38 of 100 (Notable)
Yuna	Australia	Record daily precipitation	31.8 mm (1.3 in)	37 of 100 (Notable)
Minnivale Post Office	Australia	Record daily precipitation	28.4 mm (1.1 in)	37 of 100 (Notable)
Tambarmering	Australia	Record daily precipitation	32.3 mm (1.3 in)	37 of 100 (Notable)
Leyburn Post Office	Australia	Record daily precipitation	31.0 mm (1.2 in)	37 of 100 (Notable)
Dumas	United States	Record daily precipitation	63.5 mm (2.5 in)	37 of 100 (Notable)
Morgantown Muni AP	United States	Record low minimum temperature	12.2 C (54.0 F)	37 of 100 (Notable)
Isseka	Australia	Record daily precipitation	43.7 mm (1.7 in)	36 of 100 (Notable)
Galway	Ireland	Record low maximum temperature	15.5 C (59.9 F)	36 of 100 (Notable)

Counts by Type and Timescale

976 records

Records set or tied on 18 July 1973 by type: Highest daily maximum 31, Lowest daily maximum 119, Highest daily minimum 54, Lowest daily minimum 73, Heaviest daily rainfall 698, Heaviest daily snowfall 1.

Records on 18 July 1973 by type
Record type	Records
Highest daily maximum	31
Lowest daily maximum	119
Highest daily minimum	54
Lowest daily minimum	73
Heaviest daily rainfall	698
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 18 July 1973 by timescale: all-time 2, monthly 20, daily 954.

How Much Records Were Beaten By

867 broken records

Margins by which the 867 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 68.5. Ties are not counted.

Top 20 by Significance

18 July 1973

Top 20 records on 18 July 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 July 1973	Bryah, AU	daily rain	39.9 mm (1.6 in)	25.9 mm (1.0 in)	47 years	59 of 100 (Notable)
18 July 1973	Wydgee, AU	daily rain	31.0 mm (1.2 in)	23.9 mm (0.9 in)	38 years	57 of 100 (Notable)
18 July 1973	Orford South, AU	daily rain	56.1 mm (2.2 in)	44.2 mm (1.7 in)	34 years	54 of 100 (Notable)
18 July 1973	Round Hill, AU	daily rain	36.3 mm (1.4 in)	18.0 mm (0.7 in)	64 years	52 of 100 (Notable)
18 July 1973	Lynton, AU	daily rain	48.3 mm (1.9 in)	27.7 mm (1.1 in)	42 years	51 of 100 (Notable)
18 July 1973	Tenindewa, AU	daily rain	31.5 mm (1.2 in)	19.1 mm (0.8 in)	44 years	51 of 100 (Notable)
18 July 1973	Chaval, BR	daily rain	30.2 mm (1.2 in)	23.2 mm (0.9 in)	52 years	51 of 100 (Notable)
18 July 1973	Cogla Downs, AU	daily rain	26.4 mm (1.0 in)	22.3 mm (0.9 in)	24 years	50 of 100 (Notable)
18 July 1973	Carnamah, AU	daily rain	30.0 mm (1.2 in)	14.8 mm (0.6 in)	64 years	50 of 100 (Notable)
18 July 1973	Manarra, AU	daily rain	37.1 mm (1.5 in)	17.8 mm (0.7 in)	64 years	50 of 100 (Notable)
18 July 1973	Merredin, AU	daily rain	29.2 mm (1.1 in)	12.9 mm (0.5 in)	64 years	50 of 100 (Notable)
18 July 1973	Tanbar Station, AU	daily rain	31.8 mm (1.3 in)	30.0 mm (1.2 in)	20 years	50 of 100 (Notable)
18 July 1973	Desterro, BR	daily rain	30.0 mm (1.2 in)	30.0 mm (1.2 in)	50 years	50 of 100 (Notable)
18 July 1973	Narndee, AU	daily rain	66.3 mm (2.6 in)	53.9 mm (2.1 in)	15 years	49 of 100 (Notable)
18 July 1973	Geraldton Airport, AU	monthly rain	71.9 mm (2.8 in)	21.9 mm (0.9 in)	28 years	49 of 100 (Notable)
18 July 1973	Wyalkatchem, AU	daily rain	27.2 mm (1.1 in)	15.5 mm (0.6 in)	47 years	49 of 100 (Notable)
18 July 1973	Wallabadah (Woodton), AU	daily rain	43.2 mm (1.7 in)	17.5 mm (0.7 in)	79 years	49 of 100 (Notable)
18 July 1973	Wandsworth (Strabanne), AU	daily rain	32.5 mm (1.3 in)	19.0 mm (0.7 in)	76 years	49 of 100 (Notable)
18 July 1973	Balmorhea, US	daily rain	48.3 mm (1.9 in)	38.1 mm (1.5 in)	14 years	49 of 100 (Notable)
18 July 1973	Pakri, EE	daily rain	39.1 mm (1.5 in)	17.4 mm (0.7 in)	46 years	48 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 976 records.

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

Records on 07-18 in each year
Year	Records
1793	2
1801	1
1845	1
1847	1
1851	1
1858	1
1862	1
1863	2
1865	1
1866	2
1871	2
1872	1
1874	1
1877	1
1878	4
1880	1
1881	2
1883	2
1886	2
1887	2
1888	1
1889	2
1890	4
1891	1
1892	2
1895	1
1896	2
1897	6
1898	2
1899	3
1900	8
1901	5
1902	3
1903	14
1904	7
1905	22
1906	13
1907	12
1908	39
1909	11
1910	33
1911	42
1912	28
1913	21
1914	47
1915	95
1916	235
1917	265
1918	58
1919	38
1920	59
1921	67
1922	138
1923	126
1924	306
1925	217
1926	191
1927	85
1928	108
1929	123
1930	462
1931	382
1932	343
1933	228
1934	502
1935	212
1936	665
1937	334
1938	306
1939	424
1940	352
1941	349
1942	661
1943	277
1944	333
1945	350
1946	334
1947	385
1948	289
1949	521
1950	632
1951	307
1952	597
1953	493
1954	501
1955	423
1956	466
1957	325
1958	475
1959	548
1960	669
1961	280
1962	516
1963	269
1964	523
1965	707
1966	545
1967	735
1968	998
1969	590
1970	530
1971	625
1972	701
1973	976
1974	729
1975	643
1976	1,047
1977	839
1978	881
1979	821
1980	747
1981	624
1982	749
1983	1,071
1984	1,000
1985	582
1986	908
1987	1,845
1988	1,001
1989	1,233
1990	1,053
1991	589
1992	1,135
1993	1,013
1994	720
1995	904
1996	1,157
1997	785
1998	1,169
1999	900
2000	1,214
2001	909
2002	840
2003	1,159
2004	985
2005	1,210
2006	1,285
2007	1,267
2008	593
2009	1,757
2010	878
2011	1,148
2012	1,070
2013	921
2014	1,348
2015	745
2016	609
2017	426
2018	699
2019	548
2020	361
2021	676
2022	1,071
2023	867
2024	581
2025	779
2026	806

Download the Data

Data for records on 1973-07-18: 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	639
10 to 20	187
20 to 30	30
30 to 40	8
40 to 50	1
50 to 60	1
60 to 70	1