Weather Records on 20 October 1973

878 weather records were set or tied worldwide on 20 October 1973. Highest significance: Boort, AU.

Key Facts for 20 October 1973

On 20 October 1973, 878 weather records were set or tied at long-record stations worldwide.
170 were record highs and 106 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 33 monthly and 845 daily.
Boort set a daily record precipitation of 48.0 mm (1.9 in) on 20 October 1973.
Across 160 earlier years (1806 to 2025) the same calendar date averaged 455 records.

Record Map

878 stations

878 station records on 20 October 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 October 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Boort	Australia	Record daily precipitation	48.0 mm (1.9 in)	76 of 100 (Major)
Dookie Agricultural College	Australia	Record daily precipitation	55.4 mm (2.2 in)	75 of 100 (Major)
Maude Post Office	Australia	Record daily precipitation	63.5 mm (2.5 in)	73 of 100 (Major)
Kingston SE (Keilira Station)	Australia	Record daily precipitation	58.9 mm (2.3 in)	64 of 100 (Major)
Canary Island South	Australia	Record daily precipitation	37.3 mm (1.5 in)	64 of 100 (Major)
Echuca Aerodrome	Australia	Record daily precipitation	39.4 mm (1.6 in)	64 of 100 (Major)
Outtrim	Australia	Record daily precipitation	38.1 mm (1.5 in)	64 of 100 (Major)
Lucindale Post Office	Australia	Record daily precipitation	39.1 mm (1.5 in)	63 of 100 (Major)
Wilkawatt Post Office	Australia	Record daily precipitation	34.5 mm (1.4 in)	62 of 100 (Major)
Strathbogie North	Australia	Record daily precipitation	63.0 mm (2.5 in)	62 of 100 (Major)
Southport	Australia	Record daily precipitation	84.8 mm (3.3 in)	62 of 100 (Major)
Maude (Nap Nap)	Australia	Record daily precipitation	74.9 mm (2.9 in)	61 of 100 (Major)
Dirranbandi High School	Australia	Record daily precipitation	60.5 mm (2.4 in)	59 of 100 (Notable)
Hedley	Canada	Record daily precipitation	30.7 mm (1.2 in)	58 of 100 (Notable)
Deniliquin (Wilkinson St)	Australia	Record daily precipitation	35.8 mm (1.4 in)	57 of 100 (Notable)
Merrigum	Australia	Record daily precipitation	40.4 mm (1.6 in)	57 of 100 (Notable)
Barkers Creek Reservoir	Australia	Record daily precipitation	53.3 mm (2.1 in)	57 of 100 (Notable)
Bothwell (Cluny)	Australia	Record daily precipitation	34.0 mm (1.3 in)	57 of 100 (Notable)
Serpentine (East Loddon)	Australia	Record daily precipitation	47.0 mm (1.9 in)	56 of 100 (Notable)
Kergunyah South	Australia	Record daily precipitation	49.5 mm (1.9 in)	56 of 100 (Notable)
Lameroo Comparison	Australia	Record daily precipitation	31.0 mm (1.2 in)	55 of 100 (Notable)
Jerilderie (Yanko Station)	Australia	Record daily precipitation	29.2 mm (1.1 in)	55 of 100 (Notable)
Quambatook South	Australia	Record daily precipitation	45.7 mm (1.8 in)	55 of 100 (Notable)
Inglewood (Post Office)	Australia	Record daily precipitation	43.7 mm (1.7 in)	55 of 100 (Notable)
Murchison	Australia	Record daily precipitation	36.8 mm (1.4 in)	55 of 100 (Notable)
Bridgewater (Post Office)	Australia	Record daily precipitation	54.6 mm (2.1 in)	55 of 100 (Notable)
Yea	Australia	Record daily precipitation	59.9 mm (2.4 in)	55 of 100 (Notable)
Landsborough	Australia	Record daily precipitation	47.0 mm (1.9 in)	54 of 100 (Notable)
Korong Vale (Post Office)	Australia	Record daily precipitation	29.7 mm (1.2 in)	54 of 100 (Notable)
Melton Mowbray (Mount Vernon)	Australia	Record daily precipitation	30.0 mm (1.2 in)	54 of 100 (Notable)
Elmore	Australia	Record daily precipitation	34.5 mm (1.4 in)	51 of 100 (Notable)
Yarrawonga Post Office	Australia	Record daily precipitation	80.0 mm (3.1 in)	51 of 100 (Notable)
Warrenbayne (Baddaginnie)	Australia	Record daily precipitation	45.2 mm (1.8 in)	51 of 100 (Notable)
Alexandra (Acheron)	Australia	Record daily precipitation	54.1 mm (2.1 in)	51 of 100 (Notable)
Essen-Bredeney	Germany	Record daily precipitation	29.5 mm (1.2 in)	51 of 100 (Notable)
Mulwala (Tarramia)	Australia	Record daily precipitation	36.8 mm (1.4 in)	50 of 100 (Notable)
Wanganella General Store	Australia	Record daily precipitation	38.1 mm (1.5 in)	50 of 100 (Notable)
Waranga Reservoir	Australia	Record daily precipitation	42.7 mm (1.7 in)	50 of 100 (Notable)
Campbells Forest (Yarraberb)	Australia	Record daily precipitation	28.2 mm (1.1 in)	50 of 100 (Notable)
Wangaratta	Australia	Record daily precipitation	63.2 mm (2.5 in)	50 of 100 (Notable)
Harrietville	Australia	Record daily precipitation	93.5 mm (3.7 in)	50 of 100 (Notable)
Mansfield (Post Office)	Australia	Record daily precipitation	42.7 mm (1.7 in)	50 of 100 (Notable)
Parilla	Australia	Record daily precipitation	36.1 mm (1.4 in)	49 of 100 (Notable)
Fernihurst	Australia	Record daily precipitation	61.5 mm (2.4 in)	49 of 100 (Notable)
Wuppertal-Buchenhofen	Germany	Record daily precipitation	36.8 mm (1.4 in)	49 of 100 (Notable)
Jaransk	Russia	Record daily precipitation	34.3 mm (1.4 in)	48 of 100 (Notable)
Hahndorf	Australia	Record daily precipitation	30.5 mm (1.2 in)	47 of 100 (Notable)
Berriwillock	Australia	Record daily precipitation	41.7 mm (1.6 in)	47 of 100 (Notable)
Goornong	Australia	Record daily precipitation	33.5 mm (1.3 in)	47 of 100 (Notable)
Selb/Oberfranken-Wildenau	Germany	Record daily precipitation	33.6 mm (1.3 in)	47 of 100 (Notable)
Boort (Gredgwin)	Australia	Record daily precipitation	40.4 mm (1.6 in)	46 of 100 (Notable)
Ninyeunook	Australia	Record daily precipitation	40.9 mm (1.6 in)	46 of 100 (Notable)
Glenorchy	Australia	Record daily precipitation	40.6 mm (1.6 in)	46 of 100 (Notable)
Avoca (Post Office)	Australia	Record daily precipitation	41.4 mm (1.6 in)	46 of 100 (Notable)
Benalla (Shadforth Street)	Australia	Record daily precipitation	51.3 mm (2.0 in)	46 of 100 (Notable)
Conargo (Puckawidgee)	Australia	Record daily precipitation	36.3 mm (1.4 in)	45 of 100 (Notable)
Violet Town	Australia	Record daily precipitation	62.0 mm (2.4 in)	45 of 100 (Notable)
Seymour Shire Depot	Australia	Record daily precipitation	51.6 mm (2.0 in)	45 of 100 (Notable)
Conargo (Willurah)	Australia	Record daily precipitation	40.4 mm (1.6 in)	44 of 100 (Notable)
Kalpienung	Australia	Record daily precipitation	37.1 mm (1.5 in)	44 of 100 (Notable)

Counts by Type and Timescale

878 records

Records set or tied on 20 October 1973 by type: Highest daily maximum 68, Lowest daily maximum 47, Highest daily minimum 102, Lowest daily minimum 59, Heaviest daily rainfall 584, Heaviest daily snowfall 3, Deepest snow cover 15.

Records on 20 October 1973 by type
Record type	Records
Highest daily maximum	68
Lowest daily maximum	47
Highest daily minimum	102
Lowest daily minimum	59
Heaviest daily rainfall	584
Heaviest daily snowfall	3
Deepest snow cover	15

Records on 20 October 1973 by timescale: all-time 0, monthly 33, daily 845.

How Much Records Were Beaten By

790 broken records

Margins by which the 790 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 127.0. Ties are not counted.

Top 20 by Significance

20 October 1973

Top 20 records on 20 October 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 October 1973	Boort, AU	daily rain	48.0 mm (1.9 in)	28.9 mm (1.1 in)	90 years	76 of 100 (Major)
20 October 1973	Dookie Agricultural College, AU	daily rain	55.4 mm (2.2 in)	36.3 mm (1.4 in)	86 years	75 of 100 (Major)
20 October 1973	Maude Post Office, AU	monthly rain	63.5 mm (2.5 in)	23.6 mm (0.9 in)	79 years	73 of 100 (Major)
20 October 1973	Kingston SE (Keilira Station), AU	monthly rain	58.9 mm (2.3 in)	24.6 mm (1.0 in)	27 years	64 of 100 (Major)
20 October 1973	Canary Island South, AU	daily rain	37.3 mm (1.5 in)	28.2 mm (1.1 in)	56 years	64 of 100 (Major)
20 October 1973	Echuca Aerodrome, AU	daily rain	39.4 mm (1.6 in)	23.7 mm (0.9 in)	68 years	64 of 100 (Major)
20 October 1973	Outtrim, AU	daily rain	38.1 mm (1.5 in)	24.1 mm (0.9 in)	85 years	64 of 100 (Major)
20 October 1973	Lucindale Post Office, AU	daily rain	39.1 mm (1.5 in)	23.1 mm (0.9 in)	56 years	63 of 100 (Major)
20 October 1973	Wilkawatt Post Office, AU	daily rain	34.5 mm (1.4 in)	24.8 mm (1.0 in)	56 years	62 of 100 (Major)
20 October 1973	Strathbogie North, AU	daily rain	63.0 mm (2.5 in)	36.6 mm (1.4 in)	89 years	62 of 100 (Major)
20 October 1973	Southport, AU	monthly rain	84.8 mm (3.3 in)	17.5 mm (0.7 in)	71 years	62 of 100 (Major)
20 October 1973	Maude (Nap Nap), AU	monthly rain	74.9 mm (2.9 in)	25.6 mm (1.0 in)	33 years	61 of 100 (Major)
20 October 1973	Dirranbandi High School, AU	daily rain	60.5 mm (2.4 in)	27.2 mm (1.1 in)	82 years	59 of 100 (Notable)
20 October 1973	Hedley, CA	daily rain	30.7 mm (1.2 in)	23.6 mm (0.9 in)	38 years	58 of 100 (Notable)
20 October 1973	Deniliquin (Wilkinson St), AU	daily rain	35.8 mm (1.4 in)	15.2 mm (0.6 in)	93 years	57 of 100 (Notable)
20 October 1973	Merrigum, AU	daily rain	40.4 mm (1.6 in)	20.1 mm (0.8 in)	68 years	57 of 100 (Notable)
20 October 1973	Barkers Creek Reservoir, AU	daily rain	53.3 mm (2.1 in)	29.9 mm (1.2 in)	26 years	57 of 100 (Notable)
20 October 1973	Bothwell (Cluny), AU	daily rain	34.0 mm (1.3 in)	24.1 mm (0.9 in)	36 years	57 of 100 (Notable)
20 October 1973	Serpentine (East Loddon), AU	daily rain	47.0 mm (1.9 in)	30.2 mm (1.2 in)	26 years	56 of 100 (Notable)
20 October 1973	Kergunyah South, AU	daily rain	49.5 mm (1.9 in)	35.0 mm (1.4 in)	56 years	56 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

1806 to 1973

Records set or tied on this calendar date in each year from 1806 to 1973. 1973 had 878 records.

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

Records on 10-20 in each year
Year	Records
1806	1
1835	1
1844	1
1846	1
1847	2
1851	1
1852	1
1858	1
1863	2
1864	2
1866	3
1867	1
1868	2
1872	2
1874	2
1875	3
1876	2
1877	1
1878	1
1880	3
1881	2
1884	1
1885	1
1886	1
1887	1
1888	6
1891	4
1892	4
1893	1
1894	3
1895	4
1896	9
1897	2
1898	7
1899	1
1900	8
1901	7
1902	5
1903	9
1904	13
1905	22
1906	28
1907	32
1908	26
1909	17
1910	31
1911	16
1912	6
1913	38
1914	16
1915	20
1916	72
1917	201
1918	34
1919	19
1920	81
1921	68
1922	83
1923	96
1924	182
1925	247
1926	147
1927	283
1928	92
1929	129
1930	672
1931	125
1932	331
1933	675
1934	422
1935	390
1936	370
1937	189
1938	231
1939	367
1940	757
1941	459
1942	152
1943	501
1944	288
1945	363
1946	310
1947	1,494
1948	320
1949	1,084
1950	619
1951	279
1952	520
1953	1,057
1954	262
1955	529
1956	283
1957	440
1958	461
1959	451
1960	671
1961	479
1962	733
1963	765
1964	598
1965	340
1966	857
1967	511
1968	244
1969	607
1970	710
1971	606
1972	1,724
1973	878
1974	1,122
1975	587
1976	1,304
1977	467
1978	508
1979	1,647
1980	350
1981	1,083
1982	1,191
1983	944
1984	1,562
1985	835
1986	823
1987	590
1988	737
1989	2,092
1990	609
1991	971
1992	1,174
1993	1,238
1994	650
1995	703
1996	1,417
1997	949
1998	683
1999	603
2000	737
2001	589
2002	985
2003	1,761
2004	1,861
2005	1,092
2006	1,170
2007	923
2008	477
2009	786
2010	539
2011	785
2012	945
2013	592
2014	851
2015	523
2016	947
2017	602
2018	394
2019	744
2020	1,010
2021	900
2022	834
2023	1,468
2024	707
2025	326

Download the Data

Data for records on 1973-10-20: 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	707
20 to 40	72
40 to 60	7
60 to 80	3
80 to 100	0
100 to 120	0
120 to 140	1