Weather Records on 1 October 1973

418 weather records were set or tied worldwide on 1 October 1973. Highest significance: Williamstown, US.

Key Facts for 1 October 1973

On 1 October 1973, 418 weather records were set or tied at long-record stations worldwide.
76 were record highs and 120 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 22 monthly and 396 daily.
Williamstown set a daily record precipitation of 83.6 mm (3.3 in) on 1 October 1973.
Across 161 earlier years (1813 to 2026) the same calendar date averaged 437 records.

Record Map

418 stations

418 station records on 1 October 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 October 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Williamstown	United States	Record daily precipitation	83.6 mm (3.3 in)	64 of 100 (Major)
Pao de Acucar	Brazil	Record daily precipitation	46.4 mm (1.8 in)	62 of 100 (Major)
Petrolina	Brazil	Record daily precipitation	85.0 mm (3.3 in)	57 of 100 (Notable)
Maracaja	Brazil	Record daily precipitation	55.8 mm (2.2 in)	55 of 100 (Notable)
Simplicio Mendes	Brazil	Record daily precipitation	83.1 mm (3.3 in)	52 of 100 (Notable)
Salgueiro	Brazil	Record daily precipitation	50.1 mm (2.0 in)	51 of 100 (Notable)
Kem-Port	Russia	Record daily precipitation	26.9 mm (1.1 in)	49 of 100 (Notable)
Agua Branca	Brazil	Record daily precipitation	45.4 mm (1.8 in)	47 of 100 (Notable)
Havana	United States	Record daily precipitation	63.2 mm (2.5 in)	46 of 100 (Notable)
Marengo	United States	Record daily precipitation	61.5 mm (2.4 in)	45 of 100 (Notable)
Plattsmouth 1E	United States	Record daily precipitation	57.2 mm (2.3 in)	45 of 100 (Notable)
Pau Ferro	Brazil	Record daily precipitation	84.6 mm (3.3 in)	44 of 100 (Notable)
Sao Bento Do Una	Brazil	Record daily precipitation	50.0 mm (2.0 in)	43 of 100 (Notable)
Tunnsjo	Norway	Record daily precipitation	35.6 mm (1.4 in)	43 of 100 (Notable)
Rietvallei	South Africa	Record daily precipitation	48.7 mm (1.9 in)	43 of 100 (Notable)
Sao Jose Do Belmonte	Brazil	Record daily precipitation	25.0 mm (1.0 in)	41 of 100 (Notable)
Jaguarari	Brazil	Record daily precipitation	50.0 mm (2.0 in)	41 of 100 (Notable)
Leeuwfontein	South Africa	Record daily precipitation	53.3 mm (2.1 in)	37 of 100 (Notable)
Ostas I Hegra	Norway	Record daily precipitation	31.5 mm (1.2 in)	36 of 100 (Notable)
Collins	United States	Record daily precipitation	54.9 mm (2.2 in)	35 of 100 (Notable)
Xenia 6 SSE	United States	Record daily precipitation	41.4 mm (1.6 in)	35 of 100 (Notable)
Santa Cruz (Cruz de Malta)	Brazil	Record daily precipitation	38.6 mm (1.5 in)	34 of 100 (Routine)
Aunet	Norway	Record daily precipitation	26.6 mm (1.0 in)	34 of 100 (Routine)
Rushville	United States	Record daily precipitation	68.6 mm (2.7 in)	34 of 100 (Routine)
Knoxville AP	United States	Record daily precipitation	47.0 mm (1.9 in)	34 of 100 (Routine)
Juazeiro (Pcd)	Brazil	Record daily precipitation	67.0 mm (2.6 in)	33 of 100 (Routine)
Bom Jesus da Lapa	Brazil	Record daily precipitation	39.0 mm (1.5 in)	32 of 100 (Routine)
Sao Goncalo Dos Campos	Brazil	Record daily precipitation	61.8 mm (2.4 in)	32 of 100 (Routine)
Valencia Estates	South Africa	Record daily precipitation	44.2 mm (1.7 in)	32 of 100 (Routine)
Magella	United States	Record daily precipitation	77.7 mm (3.1 in)	32 of 100 (Routine)
High River	Canada	Record daily snowfall	5.1 cm (2.0 in)	31 of 100 (Routine)
Burukan	Russia	Record daily precipitation	31.2 mm (1.2 in)	31 of 100 (Routine)
Oktjabrskaja	Russia	Record high maximum temperature	14.7 C (58.5 F)	31 of 100 (Routine)
Tacaratu	Brazil	Record daily precipitation	36.2 mm (1.4 in)	30 of 100 (Routine)
Santa Helena (Mariquita)	Brazil	Record daily precipitation	91.5 mm (3.6 in)	30 of 100 (Routine)
Tatarsk	Russia	Record low maximum temperature	1.5 C (34.7 F)	30 of 100 (Routine)
Mt Sterling	United States	Record high minimum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Albacete Los Llanos	Spain	Record low minimum temperature	1.0 C (33.8 F)	29 of 100 (Routine)
Tortosa - Observatorio del Ebr	Spain	Record low maximum temperature	17.5 C (63.5 F)	29 of 100 (Routine)
Cuthbert	United States	Record daily precipitation	39.4 mm (1.6 in)	29 of 100 (Routine)
Maryville 2E	United States	Record daily precipitation	30.5 mm (1.2 in)	29 of 100 (Routine)
Ico	Brazil	Record daily precipitation	31.4 mm (1.2 in)	28 of 100 (Routine)
Marseilles-Marignane	France	Record daily precipitation	52.6 mm (2.1 in)	28 of 100 (Routine)
Macomb	United States	Record daily precipitation	46.2 mm (1.8 in)	28 of 100 (Routine)
Dickson	United States	Record daily precipitation	51.8 mm (2.0 in)	28 of 100 (Routine)
Gloria	Brazil	Record daily precipitation	48.1 mm (1.9 in)	27 of 100 (Routine)
Timovskoe	Russia	Record high minimum temperature	11.0 C (51.8 F)	27 of 100 (Routine)
Letaba Estates	South Africa	Record daily precipitation	42.0 mm (1.7 in)	27 of 100 (Routine)
Corning	United States	Record daily precipitation	31.2 mm (1.2 in)	27 of 100 (Routine)
Ft Madison	United States	Record daily precipitation	39.1 mm (1.5 in)	26 of 100 (Routine)
Marlin	United States	Record daily precipitation	35.8 mm (1.4 in)	26 of 100 (Routine)
Palestina (Smn)	Mexico	Record high maximum temperature	41.7 C (107.1 F)	25 of 100 (Routine)
Rauland	Norway	Record snow depth	10.0 cm (3.9 in)	25 of 100 (Routine)
Sovetskaja Gavan	Russia	Record high minimum temperature	14.0 C (57.2 F)	25 of 100 (Routine)
Washington 2 ESE	United States	Record daily precipitation	76.7 mm (3.0 in)	25 of 100 (Routine)
Beardstown	United States	Record daily precipitation	57.4 mm (2.3 in)	25 of 100 (Routine)
Jardim	Brazil	Record daily precipitation	68.0 mm (2.7 in)	24 of 100 (Routine)
Perpignan	France	Record low maximum temperature	15.2 C (59.4 F)	24 of 100 (Routine)
Juchitan de Zaragoza	Mexico	Record high maximum temperature	40.0 C (104.0 F)	24 of 100 (Routine)
Ross	United States	Record daily precipitation	36.6 mm (1.4 in)	24 of 100 (Routine)

Counts by Type and Timescale

418 records

Records set or tied on 1 October 1973 by type: Highest daily maximum 35, Lowest daily maximum 65, Highest daily minimum 41, Lowest daily minimum 55, Heaviest daily rainfall 216, Heaviest daily snowfall 4, Deepest snow cover 2.

Records on 1 October 1973 by type
Record type	Records
Highest daily maximum	35
Lowest daily maximum	65
Highest daily minimum	41
Lowest daily minimum	55
Heaviest daily rainfall	216
Heaviest daily snowfall	4
Deepest snow cover	2

Records on 1 October 1973 by timescale: all-time 0, monthly 22, daily 396.

How Much Records Were Beaten By

349 broken records

Margins by which the 349 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 80.0. Ties are not counted.

Top 20 by Significance

1 October 1973

Top 20 records on 1 October 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 October 1973	Williamstown, US	daily rain	83.6 mm (3.3 in)	46.8 mm (1.8 in)	58 years	64 of 100 (Major)
1 October 1973	Pao de Acucar, BR	daily rain	46.4 mm (1.8 in)	33.2 mm (1.3 in)	54 years	62 of 100 (Major)
1 October 1973	Petrolina, BR	monthly rain	85.0 mm (3.3 in)	39.6 mm (1.6 in)	4 years	57 of 100 (Notable)
1 October 1973	Maracaja, BR	daily rain	55.8 mm (2.2 in)	55.8 mm (2.2 in)	39 years	55 of 100 (Notable)
1 October 1973	Simplicio Mendes, BR	monthly rain	83.1 mm (3.3 in)	25.4 mm (1.0 in)	56 years	52 of 100 (Notable)
1 October 1973	Salgueiro, BR	daily rain	50.1 mm (2.0 in)	49.1 mm (1.9 in)	28 years	51 of 100 (Notable)
1 October 1973	Kem-Port, RU	daily rain	26.9 mm (1.1 in)	13.1 mm (0.5 in)	34 years	49 of 100 (Notable)
1 October 1973	Agua Branca, BR	daily rain	45.4 mm (1.8 in)	39.3 mm (1.5 in)	19 years	47 of 100 (Notable)
1 October 1973	Havana, US	daily rain	63.2 mm (2.5 in)	33.5 mm (1.3 in)	48 years	46 of 100 (Notable)
1 October 1973	Marengo, US	daily rain	61.5 mm (2.4 in)	25.4 mm (1.0 in)	47 years	45 of 100 (Notable)
1 October 1973	Plattsmouth 1E, US	daily rain	57.2 mm (2.3 in)	38.7 mm (1.5 in)	26 years	45 of 100 (Notable)
1 October 1973	Pau Ferro, BR	monthly rain	84.6 mm (3.3 in)	28.8 mm (1.1 in)	7 years	44 of 100 (Notable)
1 October 1973	Sao Bento Do Una, BR	daily rain	50.0 mm (2.0 in)	38.0 mm (1.5 in)	28 years	43 of 100 (Notable)
1 October 1973	Tunnsjo, NO	daily rain	35.6 mm (1.4 in)	15.3 mm (0.6 in)	24 years	43 of 100 (Notable)
1 October 1973	Rietvallei, ZA	daily rain	48.7 mm (1.9 in)	32.2 mm (1.3 in)	35 years	43 of 100 (Notable)
1 October 1973	Sao Jose Do Belmonte, BR	daily rain	25.0 mm (1.0 in)	25.0 mm (1.0 in)	62 years	41 of 100 (Notable)
1 October 1973	Jaguarari, BR	daily rain	50.0 mm (2.0 in)	44.0 mm (1.7 in)	28 years	41 of 100 (Notable)
1 October 1973	Leeuwfontein, ZA	daily rain	53.3 mm (2.1 in)	43.8 mm (1.7 in)	4 years	37 of 100 (Notable)
1 October 1973	Ostas I Hegra, NO	daily rain	31.5 mm (1.2 in)	5.3 mm (0.21 in)	74 years	36 of 100 (Notable)
1 October 1973	Collins, US	daily rain	54.9 mm (2.2 in)	32.8 mm (1.3 in)	46 years	35 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

1813 to 1973

Records set or tied on this calendar date in each year from 1813 to 1973. 1973 had 418 records.

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

Records on 10-01 in each year
Year	Records
1813	1
1814	1
1817	1
1819	1
1820	2
1823	1
1828	1
1845	1
1847	2
1861	1
1865	1
1866	1
1869	1
1870	1
1871	1
1874	4
1876	1
1877	3
1879	1
1881	6
1882	1
1883	1
1884	1
1886	1
1888	3
1889	1
1890	4
1891	1
1892	1
1893	9
1894	4
1895	1
1897	7
1898	1
1899	16
1900	2
1901	4
1902	16
1903	9
1904	8
1905	8
1906	11
1907	11
1908	20
1909	14
1910	12
1911	34
1912	37
1913	20
1914	28
1915	65
1916	105
1917	52
1918	20
1919	25
1920	98
1921	129
1922	160
1923	158
1924	86
1925	135
1926	181
1927	754
1928	129
1929	158
1930	106
1931	237
1932	220
1933	519
1934	188
1935	201
1936	388
1937	453
1938	284
1939	283
1940	207
1941	425
1942	290
1943	324
1944	583
1945	677
1946	486
1947	867
1948	271
1949	254
1950	1,019
1951	521
1952	712
1953	656
1954	976
1955	280
1956	260
1957	646
1958	1,050
1959	1,306
1960	143
1961	566
1962	376
1963	598
1964	312
1965	521
1966	646
1967	437
1968	426
1969	454
1970	275
1971	1,449
1972	625
1973	418
1974	1,104
1975	561
1976	854
1977	1,097
1978	492
1979	488
1980	600
1981	785
1982	733
1983	783
1984	1,266
1985	1,621
1986	1,476
1987	648
1988	502
1989	739
1990	612
1991	1,020
1992	1,392
1993	1,042
1994	580
1995	746
1996	1,007
1997	1,080
1998	1,345
1999	1,096
2000	1,006
2001	924
2002	951
2003	1,198
2004	826
2005	902
2006	806
2007	726
2008	573
2009	1,051
2010	1,093
2011	1,324
2012	647
2013	515
2014	397
2015	729
2016	473
2017	472
2018	694
2019	2,439
2020	566
2021	753
2022	609
2023	1,173
2024	751
2025	384
2026	553

Download the Data

Data for records on 1973-10-01: 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	270
10 to 20	34
20 to 30	22
30 to 40	15
40 to 50	6
50 to 60	1
60 to 70	0
70 to 80	1