Weather Records on 9 May 1973

386 weather records were set or tied worldwide on 9 May 1973. Highest significance: Sao Jose Do Belmonte, BR.

Key Facts for 9 May 1973

On 9 May 1973, 386 weather records were set or tied at long-record stations worldwide.
89 were record highs and 47 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 9 monthly and 375 daily.
Sao Jose Do Belmonte set a daily record precipitation of 70.6 mm (2.8 in) on 9 May 1973.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 433 records.

Record Map

386 stations

386 station records on 9 May 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 May 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sao Jose Do Belmonte	Brazil	Record daily precipitation	70.6 mm (2.8 in)	62 of 100 (Major)
Casa Nova	Brazil	Record daily precipitation	75.4 mm (3.0 in)	58 of 100 (Notable)
Propria	Brazil	Record daily precipitation	73.3 mm (2.9 in)	53 of 100 (Notable)
Remanso	Brazil	Record daily precipitation	50.0 mm (2.0 in)	51 of 100 (Notable)
Pau Ferro	Brazil	Record daily precipitation	34.3 mm (1.4 in)	49 of 100 (Notable)
Juazeiro (Pcd)	Brazil	Record daily precipitation	40.5 mm (1.6 in)	48 of 100 (Notable)
Huatusco de Chicuellar	Mexico	Record high minimum temperature	22.8 C (73.0 F)	48 of 100 (Notable)
Wauna 3 W	United States	Record daily precipitation	50.8 mm (2.0 in)	46 of 100 (Notable)
Petrolina	Brazil	Record daily precipitation	39.9 mm (1.6 in)	44 of 100 (Notable)
Rainier Paradise Rs	United States	Record daily snowfall	27.9 cm (11.0 in)	44 of 100 (Notable)
Yarlerweelor	Australia	Record daily precipitation	48.3 mm (1.9 in)	43 of 100 (Notable)
Salgueiro	Brazil	Record daily precipitation	61.1 mm (2.4 in)	43 of 100 (Notable)
Juazeiro	Brazil	Record daily precipitation	40.5 mm (1.6 in)	42 of 100 (Notable)
George School	United States	Record daily precipitation	49.5 mm (1.9 in)	42 of 100 (Notable)
Lorna Glen	Australia	Record daily precipitation	34.5 mm (1.4 in)	41 of 100 (Notable)
Petropavlovskij Majak	Russia	Record high minimum temperature	7.2 C (45.0 F)	41 of 100 (Notable)
Arizona	Brazil	Record daily precipitation	54.9 mm (2.2 in)	40 of 100 (Notable)
Nicosia	Cyprus	Record high minimum temperature	20.5 C (68.9 F)	40 of 100 (Notable)
Sumter	United States	Record daily precipitation	42.7 mm (1.7 in)	39 of 100 (Notable)
Diablo Dam	United States	Record daily precipitation	29.2 mm (1.1 in)	39 of 100 (Notable)
Roy Hill	Australia	Record daily precipitation	29.7 mm (1.2 in)	38 of 100 (Notable)
Americus	United States	Record daily precipitation	54.6 mm (2.1 in)	38 of 100 (Notable)
Noreena Downs	Australia	Record daily precipitation	26.2 mm (1.0 in)	35 of 100 (Notable)
Burketown Post Office	Australia	Record high maximum temperature	35.5 C (95.9 F)	35 of 100 (Notable)
Eastman 1 W	United States	Record daily precipitation	30.0 mm (1.2 in)	34 of 100 (Routine)
Malhada Real	Brazil	Record daily precipitation	50.0 mm (2.0 in)	33 of 100 (Routine)
Moxoto	Brazil	Record daily precipitation	44.7 mm (1.8 in)	33 of 100 (Routine)
Nicosia	Cyprus	Record high maximum temperature	38.0 C (100.4 F)	33 of 100 (Routine)
Ocosingo	Mexico	Record low maximum temperature	22.8 C (73.0 F)	33 of 100 (Routine)
Kingsville	United States	Record low minimum temperature	9.4 C (48.9 F)	33 of 100 (Routine)
Goondiwindi Post Office	Australia	Record high maximum temperature	30.2 C (86.4 F)	32 of 100 (Routine)
Pedro Avelino	Brazil	Record daily precipitation	43.8 mm (1.7 in)	32 of 100 (Routine)
Acude Cruzeta	Brazil	Record daily precipitation	58.1 mm (2.3 in)	32 of 100 (Routine)
Falfurrias	United States	Record low minimum temperature	10.0 C (50.0 F)	32 of 100 (Routine)
Rainier Paradise Rs	United States	Record daily precipitation	34.0 mm (1.3 in)	32 of 100 (Routine)
Orlando Executive AP	United States	Record high minimum temperature	22.8 C (73.0 F)	32 of 100 (Routine)
Bruceton 1 S	United States	Record daily precipitation	34.3 mm (1.4 in)	31 of 100 (Routine)
Woodbury	United States	Record daily precipitation	47.8 mm (1.9 in)	30 of 100 (Routine)
Tryon	United States	Record daily precipitation	73.2 mm (2.9 in)	30 of 100 (Routine)
Fairmont	United States	Record daily precipitation	33.0 mm (1.3 in)	30 of 100 (Routine)
Hamlin	United States	Record daily precipitation	34.0 mm (1.3 in)	30 of 100 (Routine)
Mount Clere	Australia	Record daily precipitation	29.7 mm (1.2 in)	29 of 100 (Routine)
Santa Cruz (Cruz de Malta)	Brazil	Record daily precipitation	30.6 mm (1.2 in)	29 of 100 (Routine)
Aquidaba	Brazil	Record daily precipitation	50.8 mm (2.0 in)	29 of 100 (Routine)
Hollister 1 SW	United States	Record low minimum temperature	1.1 C (34.0 F)	29 of 100 (Routine)
Dahlonega 4WSW	United States	Record daily precipitation	63.0 mm (2.5 in)	29 of 100 (Routine)
Branchland 1 N	United States	Record daily precipitation	33.3 mm (1.3 in)	29 of 100 (Routine)
St Lin des Laurentides	Canada	Record daily precipitation	26.4 mm (1.0 in)	28 of 100 (Routine)
Geneva	United States	Record daily precipitation	57.7 mm (2.3 in)	28 of 100 (Routine)
Hawkinsville	United States	Record daily precipitation	27.9 mm (1.1 in)	28 of 100 (Routine)
Piranhas	Brazil	Record daily precipitation	37.2 mm (1.5 in)	27 of 100 (Routine)
Connellsville	United States	Record daily precipitation	52.1 mm (2.1 in)	27 of 100 (Routine)
Martinsville Fltr Plt	United States	Record daily precipitation	25.4 mm (1.0 in)	27 of 100 (Routine)
Paramoti	Brazil	Record daily precipitation	77.2 mm (3.0 in)	26 of 100 (Routine)
Prince	Canada	Record high minimum temperature	6.1 C (43.0 F)	26 of 100 (Routine)
Jackson	United States	Record daily precipitation	30.7 mm (1.2 in)	26 of 100 (Routine)
San Diego Curupatzeo	Mexico	Record high minimum temperature	25.0 C (77.0 F)	25 of 100 (Routine)
Talbotton	United States	Record daily precipitation	25.9 mm (1.0 in)	25 of 100 (Routine)
W Pt	United States	Record daily precipitation	39.4 mm (1.6 in)	25 of 100 (Routine)
Diablo Dam	United States	Record low maximum temperature	5.6 C (42.1 F)	25 of 100 (Routine)

Counts by Type and Timescale

386 records

Records set or tied on 9 May 1973 by type: Highest daily maximum 44, Lowest daily maximum 24, Highest daily minimum 45, Lowest daily minimum 23, Heaviest daily rainfall 247, Heaviest daily snowfall 1, Deepest snow cover 2.

Records on 9 May 1973 by type
Record type	Records
Highest daily maximum	44
Lowest daily maximum	24
Highest daily minimum	45
Lowest daily minimum	23
Heaviest daily rainfall	247
Heaviest daily snowfall	1
Deepest snow cover	2

Records on 9 May 1973 by timescale: all-time 2, monthly 9, daily 375.

How Much Records Were Beaten By

332 broken records

Margins by which the 332 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 177.0. Ties are not counted.

Top 20 by Significance

9 May 1973

Top 20 records on 9 May 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 May 1973	Sao Jose Do Belmonte, BR	daily rain	70.6 mm (2.8 in)	53.1 mm (2.1 in)	55 years	62 of 100 (Major)
9 May 1973	Casa Nova, BR	monthly rain	75.4 mm (3.0 in)	25.1 mm (1.0 in)	36 years	58 of 100 (Notable)
9 May 1973	Propria, BR	daily rain	73.3 mm (2.9 in)	45.1 mm (1.8 in)	44 years	53 of 100 (Notable)
9 May 1973	Remanso, BR	daily rain	50.0 mm (2.0 in)	47.0 mm (1.9 in)	18 years	51 of 100 (Notable)
9 May 1973	Pau Ferro, BR	daily rain	34.3 mm (1.4 in)	34.3 mm (1.4 in)	39 years	49 of 100 (Notable)
9 May 1973	Juazeiro (Pcd), BR	daily rain	40.5 mm (1.6 in)	40.5 mm (1.6 in)	48 years	48 of 100 (Notable)
9 May 1973	Huatusco de Chicuellar, MX	all-time high min	22.8 C (73.0 F)	1.1 C (2.0 F)	60 years	48 of 100 (Notable)
9 May 1973	Wauna 3 W, US	daily rain	50.8 mm (2.0 in)	40.9 mm (1.6 in)	12 years	46 of 100 (Notable)
9 May 1973	Petrolina, BR	daily rain	39.9 mm (1.6 in)	34.9 mm (1.4 in)	16 years	44 of 100 (Notable)
9 May 1973	Rainier Paradise Rs, US	daily snowfall	27.9 cm (11.0 in)	17.7 cm (7.0 in)	44 years	44 of 100 (Notable)
9 May 1973	Yarlerweelor, AU	daily rain	48.3 mm (1.9 in)	40.7 mm (1.6 in)	20 years	43 of 100 (Notable)
9 May 1973	Salgueiro, BR	daily rain	61.1 mm (2.4 in)	38.9 mm (1.5 in)	6 years	43 of 100 (Notable)
9 May 1973	Juazeiro, BR	daily rain	40.5 mm (1.6 in)	37.0 mm (1.5 in)	16 years	42 of 100 (Notable)
9 May 1973	George School, US	daily rain	49.5 mm (1.9 in)	23.1 mm (0.9 in)	48 years	42 of 100 (Notable)
9 May 1973	Lorna Glen, AU	daily rain	34.5 mm (1.4 in)	29.4 mm (1.2 in)	34 years	41 of 100 (Notable)
9 May 1973	Petropavlovskij Majak, RU	daily high min	7.2 C (45.0 F)	4.8 C (8.6 F)	30 years	41 of 100 (Notable)
9 May 1973	Arizona, BR	monthly rain	54.9 mm (2.2 in)	18.7 mm (0.7 in)	6 years	40 of 100 (Notable)
9 May 1973	Nicosia, CY	daily high min	20.5 C (68.9 F)	2.7 C (4.9 F)	76 years	40 of 100 (Notable)
9 May 1973	Sumter, US	daily rain	42.7 mm (1.7 in)	23.9 mm (0.9 in)	43 years	39 of 100 (Notable)
9 May 1973	Diablo Dam, US	daily rain	29.2 mm (1.1 in)	17.8 mm (0.7 in)	28 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 386 records.

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

Records on 05-09 in each year
Year	Records
1793	1
1795	1
1806	1
1810	1
1823	1
1834	1
1838	1
1843	1
1845	2
1846	1
1848	1
1850	2
1855	2
1857	1
1858	1
1861	1
1862	1
1864	2
1865	2
1867	2
1872	1
1873	2
1874	1
1875	2
1879	4
1880	3
1882	1
1883	2
1884	3
1885	3
1889	3
1890	3
1891	3
1892	1
1893	1
1895	2
1896	4
1897	3
1898	3
1899	2
1900	2
1901	9
1902	8
1903	9
1904	14
1905	34
1906	41
1907	11
1908	16
1909	34
1910	45
1911	23
1912	23
1913	15
1914	43
1915	27
1916	26
1917	50
1918	49
1919	47
1920	56
1921	102
1922	45
1923	461
1924	262
1925	123
1926	196
1927	343
1928	302
1929	166
1930	526
1931	411
1932	132
1933	482
1934	750
1935	111
1936	622
1937	128
1938	171
1939	345
1940	237
1941	335
1942	180
1943	524
1944	412
1945	538
1946	278
1947	1,145
1948	379
1949	417
1950	660
1951	188
1952	348
1953	507
1954	489
1955	288
1956	722
1957	505
1958	355
1959	252
1960	748
1961	516
1962	435
1963	1,103
1964	503
1965	730
1966	994
1967	681
1968	545
1969	653
1970	372
1971	338
1972	587
1973	386
1974	699
1975	465
1976	714
1977	931
1978	649
1979	1,605
1980	1,030
1981	639
1982	523
1983	872
1984	892
1985	829
1986	1,253
1987	1,481
1988	594
1989	1,347
1990	850
1991	759
1992	1,476
1993	967
1994	573
1995	960
1996	1,260
1997	1,088
1998	1,182
1999	970
2000	1,114
2001	969
2002	1,489
2003	1,802
2004	926
2005	851
2006	738
2007	765
2008	693
2009	816
2010	764
2011	1,104
2012	686
2013	684
2014	754
2015	689
2016	917
2017	539
2018	879
2019	1,043
2020	1,673
2021	501
2022	1,308
2023	474
2024	792
2025	622
2026	309

Download the Data

Data for records on 1973-05-09: 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 25	313
25 to 50	17
50 to 75	1
75 to 100	0
100 to 125	0
125 to 150	0
150 to 175	0
175 to 200	1