Weather Records on 17 October 1973

542 weather records were set or tied worldwide on 17 October 1973. Highest significance: Usina Bananeiras (Caeeb), BR.

Key Facts for 17 October 1973

On 17 October 1973, 542 weather records were set or tied at long-record stations worldwide.
119 were record highs and 119 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 13 monthly and 529 daily.
Usina Bananeiras (Caeeb) set a monthly record daily precipitation of 135.0 mm (5.3 in) on 17 October 1973.
Across 162 earlier years (1793 to 2025) the same calendar date averaged 439 records.

Record Map

542 stations

542 station records on 17 October 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 October 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Usina Bananeiras (Caeeb)	Brazil	Record daily precipitation	135.0 mm (5.3 in)	66 of 100 (Major)
Woomera (South Gap Station)	Australia	Record daily precipitation	31.8 mm (1.3 in)	59 of 100 (Notable)
Pondooma Post Office	Australia	Record daily precipitation	27.2 mm (1.1 in)	57 of 100 (Notable)
Zwartrandjes	South Africa	Record daily precipitation	75.5 mm (3.0 in)	55 of 100 (Notable)
East Well	Australia	Record daily precipitation	27.9 mm (1.1 in)	51 of 100 (Notable)
Coondambo	Australia	Record daily precipitation	28.4 mm (1.1 in)	50 of 100 (Notable)
Samara	Russia	Record daily precipitation	39.6 mm (1.6 in)	50 of 100 (Notable)
Bomnak	Russia	Record daily precipitation	26.5 mm (1.0 in)	48 of 100 (Notable)
Belton (Shadow Vale)	Australia	Record daily precipitation	26.7 mm (1.1 in)	47 of 100 (Notable)
Hawker (Wilson)	Australia	Record daily precipitation	32.8 mm (1.3 in)	47 of 100 (Notable)
Caripare	Brazil	Record daily precipitation	104.8 mm (4.1 in)	44 of 100 (Notable)
Bulgunnia	Australia	Record daily precipitation	32.5 mm (1.3 in)	42 of 100 (Notable)
Wirrappa	Australia	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
Mamakuil	South Africa	Record daily precipitation	57.0 mm (2.2 in)	41 of 100 (Notable)
Ghanzi	Botswana	Record daily precipitation	38.0 mm (1.5 in)	39 of 100 (Notable)
Nordby (Fano)	Denmark	Record low minimum temperature	-0.9 C (30.4 F)	39 of 100 (Notable)
Terowie (Parnaroo Sect 50)	Australia	Record daily precipitation	25.4 mm (1.0 in)	37 of 100 (Notable)
Palapye	Botswana	Record daily precipitation	33.5 mm (1.3 in)	37 of 100 (Notable)
Barkestad	Norway	Record snow depth	22.0 cm (8.7 in)	37 of 100 (Notable)
Vestervig	Denmark	Record low minimum temperature	-0.7 C (30.7 F)	36 of 100 (Notable)
Talkeetna AP	United States	Record daily snowfall	18.3 cm (7.2 in)	36 of 100 (Notable)
Mahalapye	Botswana	Record daily precipitation	36.0 mm (1.4 in)	35 of 100 (Notable)
Mochudi	Botswana	Record daily precipitation	48.5 mm (1.9 in)	34 of 100 (Routine)
Avalon Pleasure Pier	United States	Record low minimum temperature	4.4 C (39.9 F)	34 of 100 (Routine)
Sarajevo	Bosnia and Herzegovina	Record high minimum temperature	17.6 C (63.7 F)	33 of 100 (Routine)
Bontfontein	South Africa	Record daily precipitation	65.0 mm (2.6 in)	33 of 100 (Routine)
Beaumont City	United States	Record daily precipitation	71.1 mm (2.8 in)	33 of 100 (Routine)
Galway	Ireland	Record low maximum temperature	9.9 C (49.8 F)	32 of 100 (Routine)
Bochum-1	South Africa	Record daily precipitation	38.0 mm (1.5 in)	32 of 100 (Routine)
Boras	Sweden	Record low maximum temperature	3.8 C (38.8 F)	32 of 100 (Routine)
Orebro	Sweden	Record low maximum temperature	0.5 C (32.9 F)	32 of 100 (Routine)
Linkoeping-Malmslaett	Sweden	Record low maximum temperature	1.3 C (34.3 F)	31 of 100 (Routine)
Dayville	United States	Record high maximum temperature	28.3 C (82.9 F)	31 of 100 (Routine)
Port Germein (Baroota Reservoi	Australia	Record daily precipitation	47.0 mm (1.9 in)	30 of 100 (Routine)
Hvar	Croatia	Record high minimum temperature	21.6 C (70.9 F)	30 of 100 (Routine)
Kisinev	Moldova	Record high maximum temperature	25.5 C (77.9 F)	30 of 100 (Routine)
Palmaryville	South Africa	Record daily precipitation	64.5 mm (2.5 in)	29 of 100 (Routine)
Odesa	Ukraine	Record high maximum temperature	26.7 C (80.1 F)	29 of 100 (Routine)
Tomball	United States	Record daily precipitation	76.2 mm (3.0 in)	29 of 100 (Routine)
Calarasi	Romania	Record high maximum temperature	31.3 C (88.3 F)	28 of 100 (Routine)
Klamath Falls 2 SSW	United States	Record high maximum temperature	25.0 C (77.0 F)	28 of 100 (Routine)
Ico	Brazil	Record daily precipitation	26.8 mm (1.1 in)	26 of 100 (Routine)
Juchitan de Zaragoza	Mexico	Record high maximum temperature	39.4 C (102.9 F)	26 of 100 (Routine)
Mount Barker	Australia	Record low maximum temperature	11.5 C (52.7 F)	25 of 100 (Routine)
Kamloops	Canada	Record high maximum temperature	20.6 C (69.1 F)	25 of 100 (Routine)
Husum	Germany	Record low minimum temperature	-1.0 C (30.2 F)	25 of 100 (Routine)
Askaniia Nova	Ukraine	Record high maximum temperature	23.2 C (73.8 F)	25 of 100 (Routine)
Flagstaff AP	United States	Record high maximum temperature	25.6 C (78.1 F)	25 of 100 (Routine)
Northam	Australia	Record low maximum temperature	16.4 C (61.5 F)	24 of 100 (Routine)
Estancia	Brazil	Record daily precipitation	45.2 mm (1.8 in)	24 of 100 (Routine)
Weddingstedt	Germany	Record daily precipitation	30.4 mm (1.2 in)	24 of 100 (Routine)
Badiraguato (Smn)	Mexico	Record low minimum temperature	8.9 C (48.0 F)	24 of 100 (Routine)
Brekke I Sogn	Norway	Record snow depth	16.0 cm (6.3 in)	24 of 100 (Routine)
Leeuwfontein	South Africa	Record daily precipitation	56.5 mm (2.2 in)	24 of 100 (Routine)
Darby	United States	Record high maximum temperature	25.6 C (78.1 F)	24 of 100 (Routine)
Orange	United States	Record daily precipitation	57.7 mm (2.3 in)	24 of 100 (Routine)
Wirraminna Railway Station	Australia	Record daily precipitation	29.5 mm (1.2 in)	23 of 100 (Routine)
Dublin Phoenix Park	Ireland	Record low minimum temperature	-0.7 C (30.7 F)	23 of 100 (Routine)
Broederstroom (Bos)	South Africa	Record daily precipitation	64.5 mm (2.5 in)	23 of 100 (Routine)
Ajo	United States	Record high minimum temperature	22.2 C (72.0 F)	23 of 100 (Routine)

Counts by Type and Timescale

542 records

Records set or tied on 17 October 1973 by type: Highest daily maximum 74, Lowest daily maximum 67, Highest daily minimum 45, Lowest daily minimum 52, Heaviest daily rainfall 292, Heaviest daily snowfall 6, Deepest snow cover 6.

Records on 17 October 1973 by type
Record type	Records
Highest daily maximum	74
Lowest daily maximum	67
Highest daily minimum	45
Lowest daily minimum	52
Heaviest daily rainfall	292
Heaviest daily snowfall	6
Deepest snow cover	6

Records on 17 October 1973 by timescale: all-time 0, monthly 13, daily 529.

How Much Records Were Beaten By

470 broken records

Margins by which the 470 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 132.0. Ties are not counted.

Top 20 by Significance

17 October 1973

Top 20 records on 17 October 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 October 1973	Usina Bananeiras (Caeeb), BR	monthly rain	135.0 mm (5.3 in)	93.7 mm (3.7 in)	43 years	66 of 100 (Major)
17 October 1973	Woomera (South Gap Station), AU	daily rain	31.8 mm (1.3 in)	19.6 mm (0.8 in)	80 years	59 of 100 (Notable)
17 October 1973	Pondooma Post Office, AU	daily rain	27.2 mm (1.1 in)	19.6 mm (0.8 in)	64 years	57 of 100 (Notable)
17 October 1973	Zwartrandjes, ZA	monthly rain	75.5 mm (3.0 in)	38.5 mm (1.5 in)	1 year	55 of 100 (Notable)
17 October 1973	East Well, AU	daily rain	27.9 mm (1.1 in)	22.6 mm (0.9 in)	36 years	51 of 100 (Notable)
17 October 1973	Coondambo, AU	daily rain	28.4 mm (1.1 in)	14.2 mm (0.6 in)	64 years	50 of 100 (Notable)
17 October 1973	Samara, RU	monthly rain	39.6 mm (1.6 in)	12.5 mm (0.5 in)	37 years	50 of 100 (Notable)
17 October 1973	Bomnak, RU	daily rain	26.5 mm (1.0 in)	20.2 mm (0.8 in)	8 years	48 of 100 (Notable)
17 October 1973	Belton (Shadow Vale), AU	daily rain	26.7 mm (1.1 in)	18.6 mm (0.7 in)	42 years	47 of 100 (Notable)
17 October 1973	Hawker (Wilson), AU	daily rain	32.8 mm (1.3 in)	24.2 mm (1.0 in)	23 years	47 of 100 (Notable)
17 October 1973	Caripare, BR	monthly rain	104.8 mm (4.1 in)	34.8 mm (1.4 in)	0 years	44 of 100 (Notable)
17 October 1973	Bulgunnia, AU	daily rain	32.5 mm (1.3 in)	29.5 mm (1.2 in)	11 years	42 of 100 (Notable)
17 October 1973	Wirrappa, AU	daily rain	25.4 mm (1.0 in)	17.8 mm (0.7 in)	50 years	42 of 100 (Notable)
17 October 1973	Mamakuil, ZA	daily rain	57.0 mm (2.2 in)	29.1 mm (1.1 in)	28 years	41 of 100 (Notable)
17 October 1973	Ghanzi, BW	daily rain	38.0 mm (1.5 in)	20.7 mm (0.8 in)	31 years	39 of 100 (Notable)
17 October 1973	Nordby (Fano), DK	daily low min	-0.9 C (30.4 F)	0.5 C (0.9 F)	93 years	39 of 100 (Notable)
17 October 1973	Terowie (Parnaroo Sect 50), AU	daily rain	25.4 mm (1.0 in)	20.3 mm (0.8 in)	0 years	37 of 100 (Notable)
17 October 1973	Palapye, BW	daily rain	33.5 mm (1.3 in)	22.6 mm (0.9 in)	32 years	37 of 100 (Notable)
17 October 1973	Barkestad, NO	daily snow depth	22.0 cm (8.7 in)	6.0 cm (2.4 in)	71 years	37 of 100 (Notable)
17 October 1973	Vestervig, DK	daily low min	-0.7 C (30.7 F)	0.8 C (1.4 F)	80 years	36 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 542 records.

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

Records on 10-17 in each year
Year	Records
1793	1
1796	2
1808	2
1810	1
1811	1
1817	1
1820	1
1830	1
1836	1
1844	1
1845	1
1868	1
1869	2
1870	1
1872	1
1874	1
1875	1
1876	3
1877	1
1878	1
1879	7
1881	1
1882	1
1883	1
1884	2
1885	2
1886	1
1889	1
1890	3
1891	2
1892	6
1893	5
1894	2
1895	1
1897	3
1898	6
1899	3
1900	3
1901	3
1902	4
1903	9
1904	17
1905	12
1906	3
1907	16
1908	46
1909	18
1910	13
1911	24
1912	12
1913	26
1914	72
1915	7
1916	81
1917	29
1918	20
1919	34
1920	82
1921	64
1922	60
1923	149
1924	81
1925	324
1926	153
1927	163
1928	530
1929	119
1930	441
1931	431
1932	345
1933	190
1934	262
1935	337
1936	338
1937	865
1938	710
1939	424
1940	580
1941	194
1942	349
1943	1,173
1944	415
1945	289
1946	437
1947	744
1948	724
1949	442
1950	809
1951	274
1952	474
1953	463
1954	579
1955	562
1956	353
1957	245
1958	415
1959	403
1960	432
1961	525
1962	350
1963	513
1964	492
1965	920
1966	551
1967	576
1968	929
1969	714
1970	815
1971	1,053
1972	866
1973	542
1974	1,055
1975	605
1976	1,381
1977	1,060
1978	583
1979	468
1980	1,366
1981	555
1982	575
1983	526
1984	1,551
1985	585
1986	354
1987	828
1988	827
1989	1,163
1990	1,109
1991	1,352
1992	1,384
1993	1,001
1994	1,306
1995	1,076
1996	987
1997	1,114
1998	1,455
1999	815
2000	461
2001	878
2002	992
2003	764
2004	935
2005	643
2006	1,506
2007	690
2008	467
2009	1,606
2010	625
2011	734
2012	550
2013	516
2014	530
2015	843
2016	1,559
2017	743
2018	1,163
2019	504
2020	889
2021	294
2022	964
2023	544
2024	994
2025	363

Download the Data

Data for records on 1973-10-17: 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	439
20 to 40	23
40 to 60	2
60 to 80	3
80 to 100	1
100 to 120	1
120 to 140	1