Weather Records on 15 September 1973

774 weather records were set or tied worldwide on 15 September 1973. Highest significance: Strathbogie, AU.

Key Facts for 15 September 1973

On 15 September 1973, 774 weather records were set or tied at long-record stations worldwide.
99 were record highs and 305 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 16 monthly and 758 daily.
Strathbogie set a daily record precipitation of 62.2 mm (2.4 in) on 15 September 1973.
Across 170 earlier years (1797 to 2026) the same calendar date averaged 411 records.

Record Map

774 stations

774 station records on 15 September 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 September 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Strathbogie	Australia	Record daily precipitation	62.2 mm (2.4 in)	62 of 100 (Major)
Suassurana	Brazil	Record daily precipitation	45.0 mm (1.8 in)	61 of 100 (Major)
Shirbourne Park	Australia	Record daily precipitation	99.1 mm (3.9 in)	58 of 100 (Notable)
Nowa Nowa (Wairewa)	Australia	Record daily precipitation	50.0 mm (2.0 in)	58 of 100 (Notable)
Valley of Lagoons	Australia	Record daily precipitation	37.6 mm (1.5 in)	56 of 100 (Notable)
Kalamia Estate	Australia	Record daily precipitation	48.0 mm (1.9 in)	54 of 100 (Notable)
Bogie River	Australia	Record daily precipitation	40.6 mm (1.6 in)	53 of 100 (Notable)
Gympie	Australia	Record daily precipitation	37.8 mm (1.5 in)	51 of 100 (Notable)
Kidston Gold Mine	Australia	Record daily precipitation	32.5 mm (1.3 in)	47 of 100 (Notable)
Kangaroo Hills Station	Australia	Record daily precipitation	30.5 mm (1.2 in)	47 of 100 (Notable)
Wood	United States	Record daily precipitation	29.5 mm (1.2 in)	47 of 100 (Notable)
Lucinda Township	Australia	Record daily precipitation	27.9 mm (1.1 in)	46 of 100 (Notable)
Lake Avalon	United States	Record daily precipitation	59.7 mm (2.4 in)	46 of 100 (Notable)
Bundaberg Post Office	Australia	Record daily precipitation	26.7 mm (1.1 in)	45 of 100 (Notable)
Widgee Station Hill	Australia	Record daily precipitation	44.5 mm (1.8 in)	44 of 100 (Notable)
McAllen	United States	Record daily precipitation	144.0 mm (5.7 in)	43 of 100 (Notable)
Cape Leeuwin	Australia	Record daily precipitation	28.7 mm (1.1 in)	42 of 100 (Notable)
Amiens-Glisy	France	Record daily precipitation	29.5 mm (1.2 in)	42 of 100 (Notable)
Livingston	United States	Record low maximum temperature	3.9 C (39.0 F)	41 of 100 (Notable)
Margaret River	Australia	Record daily precipitation	29.7 mm (1.2 in)	40 of 100 (Notable)
The Warriups	Australia	Record daily precipitation	42.9 mm (1.7 in)	40 of 100 (Notable)
Fairymead Sugar Mill	Australia	Record daily precipitation	27.2 mm (1.1 in)	40 of 100 (Notable)
Canton 1 NW	United States	Record daily precipitation	55.9 mm (2.2 in)	40 of 100 (Notable)
Wairuna Station	Australia	Record daily precipitation	27.9 mm (1.1 in)	39 of 100 (Notable)
Elmira	United States	Record daily precipitation	40.6 mm (1.6 in)	38 of 100 (Notable)
Chinook	United States	Record low maximum temperature	8.3 C (46.9 F)	37 of 100 (Notable)
Tuckerton 2 NE	United States	Record daily precipitation	85.3 mm (3.4 in)	37 of 100 (Notable)
Nannup	Australia	Record daily precipitation	26.4 mm (1.0 in)	36 of 100 (Notable)
Holter Dam	United States	Record low maximum temperature	5.6 C (42.1 F)	36 of 100 (Notable)
Scottsbluff W B Heilig Fld AP	United States	Record low maximum temperature	5.6 C (42.1 F)	35 of 100 (Notable)
Majors Creek	Australia	Record daily precipitation	44.5 mm (1.8 in)	34 of 100 (Routine)
Woodford Post Office	Australia	Record daily precipitation	25.4 mm (1.0 in)	34 of 100 (Routine)
Arcadia	United States	Record high maximum temperature	36.1 C (97.0 F)	34 of 100 (Routine)
Alliance 1WNW	United States	Record low maximum temperature	4.4 C (39.9 F)	34 of 100 (Routine)
Yellowstone Park Mammoth	United States	Record low maximum temperature	3.3 C (37.9 F)	34 of 100 (Routine)
Tarong	Australia	Record daily precipitation	31.5 mm (1.2 in)	33 of 100 (Routine)
Morretes	Brazil	Record daily precipitation	50.6 mm (2.0 in)	33 of 100 (Routine)
Tamaqua	United States	Record daily precipitation	82.6 mm (3.3 in)	33 of 100 (Routine)
Zinder	Niger	Record high maximum temperature	43.7 C (110.7 F)	32 of 100 (Routine)
Cascade 5 S	United States	Record low maximum temperature	5.0 C (41.0 F)	32 of 100 (Routine)
Ft Benton	United States	Record low maximum temperature	7.2 C (45.0 F)	32 of 100 (Routine)
Norris Madison Pwr House	United States	Record low maximum temperature	3.3 C (37.9 F)	32 of 100 (Routine)
Forest Grove	Australia	Record daily precipitation	33.3 mm (1.3 in)	31 of 100 (Routine)
Lindfield	Australia	Record daily precipitation	28.4 mm (1.1 in)	31 of 100 (Routine)
Longvalley	United States	Record daily precipitation	30.5 mm (1.2 in)	31 of 100 (Routine)
Bambaroo	Australia	Record daily precipitation	25.4 mm (1.0 in)	30 of 100 (Routine)
Wetaskiwin	Canada	Record low minimum temperature	-5.0 C (23.0 F)	30 of 100 (Routine)
Three Hills	Canada	Record low minimum temperature	-9.4 C (15.1 F)	30 of 100 (Routine)
Strasbourg	Canada	Record low minimum temperature	-5.6 C (21.9 F)	30 of 100 (Routine)
Sihccajavri	Norway	Record snow depth	10.0 cm (3.9 in)	30 of 100 (Routine)
Big Timber	United States	Record low maximum temperature	4.4 C (39.9 F)	30 of 100 (Routine)
Brady Aznoe	United States	Record low maximum temperature	5.6 C (42.1 F)	30 of 100 (Routine)
Belvidere	United States	Record daily precipitation	62.2 mm (2.4 in)	30 of 100 (Routine)
Cape May 2 NW	United States	Record daily precipitation	41.4 mm (1.6 in)	30 of 100 (Routine)
Middletown 2 NW	United States	Record daily precipitation	33.0 mm (1.3 in)	30 of 100 (Routine)
Mohall	United States	Record low maximum temperature	8.9 C (48.0 F)	30 of 100 (Routine)
Belle Fourche	United States	Record low maximum temperature	7.2 C (45.0 F)	30 of 100 (Routine)
Danevang 1 W	United States	Record high minimum temperature	24.4 C (75.9 F)	30 of 100 (Routine)
Howard Post Office	Australia	Record daily precipitation	42.4 mm (1.7 in)	29 of 100 (Routine)
Moosomin	Canada	Record low minimum temperature	-5.0 C (23.0 F)	29 of 100 (Routine)

Counts by Type and Timescale

774 records

Records set or tied on 15 September 1973 by type: Highest daily maximum 45, Lowest daily maximum 208, Highest daily minimum 54, Lowest daily minimum 97, Heaviest daily rainfall 356, Heaviest daily snowfall 10, Deepest snow cover 4.

Records on 15 September 1973 by type
Record type	Records
Highest daily maximum	45
Lowest daily maximum	208
Highest daily minimum	54
Lowest daily minimum	97
Heaviest daily rainfall	356
Heaviest daily snowfall	10
Deepest snow cover	4

Records on 15 September 1973 by timescale: all-time 0, monthly 16, daily 758.

How Much Records Were Beaten By

670 broken records

Margins by which the 670 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 87.6. Ties are not counted.

Top 20 by Significance

15 September 1973

Top 20 records on 15 September 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 September 1973	Strathbogie, AU	daily rain	62.2 mm (2.4 in)	62.2 mm (2.4 in)	58 years	62 of 100 (Major)
15 September 1973	Suassurana, BR	daily rain	45.0 mm (1.8 in)	45.0 mm (1.8 in)	54 years	61 of 100 (Major)
15 September 1973	Shirbourne Park, AU	monthly rain	99.1 mm (3.9 in)	39.9 mm (1.6 in)	39 years	58 of 100 (Notable)
15 September 1973	Nowa Nowa (Wairewa), AU	daily rain	50.0 mm (2.0 in)	40.3 mm (1.6 in)	60 years	58 of 100 (Notable)
15 September 1973	Valley of Lagoons, AU	daily rain	37.6 mm (1.5 in)	36.1 mm (1.4 in)	38 years	56 of 100 (Notable)
15 September 1973	Kalamia Estate, AU	daily rain	48.0 mm (1.9 in)	45.7 mm (1.8 in)	22 years	54 of 100 (Notable)
15 September 1973	Bogie River, AU	daily rain	40.6 mm (1.6 in)	40.6 mm (1.6 in)	40 years	53 of 100 (Notable)
15 September 1973	Gympie, AU	daily rain	37.8 mm (1.5 in)	27.6 mm (1.1 in)	52 years	51 of 100 (Notable)
15 September 1973	Kidston Gold Mine, AU	daily rain	32.5 mm (1.3 in)	27.9 mm (1.1 in)	52 years	47 of 100 (Notable)
15 September 1973	Kangaroo Hills Station, AU	daily rain	30.5 mm (1.2 in)	30.5 mm (1.2 in)	62 years	47 of 100 (Notable)
15 September 1973	Wood, US	daily rain	29.5 mm (1.2 in)	19.3 mm (0.8 in)	60 years	47 of 100 (Notable)
15 September 1973	Lucinda Township, AU	daily rain	27.9 mm (1.1 in)	21.5 mm (0.8 in)	73 years	46 of 100 (Notable)
15 September 1973	Lake Avalon, US	daily rain	59.7 mm (2.4 in)	34.3 mm (1.4 in)	54 years	46 of 100 (Notable)
15 September 1973	Bundaberg Post Office, AU	daily rain	26.7 mm (1.1 in)	21.4 mm (0.8 in)	67 years	45 of 100 (Notable)
15 September 1973	Widgee Station Hill, AU	daily rain	44.5 mm (1.8 in)	36.6 mm (1.4 in)	30 years	44 of 100 (Notable)
15 September 1973	McAllen, US	daily rain	144.0 mm (5.7 in)	87.6 mm (3.4 in)	2 years	43 of 100 (Notable)
15 September 1973	Cape Leeuwin, AU	daily rain	28.7 mm (1.1 in)	15.2 mm (0.6 in)	30 years	42 of 100 (Notable)
15 September 1973	Amiens-Glisy, FR	daily rain	29.5 mm (1.2 in)	20.0 mm (0.8 in)	23 years	42 of 100 (Notable)
15 September 1973	Livingston, US	daily low max	3.9 C (39.0 F)	7.2 C (13.0 F)	76 years	41 of 100 (Notable)
15 September 1973	Margaret River, AU	daily rain	29.7 mm (1.2 in)	20.0 mm (0.8 in)	20 years	40 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

1797 to 1973

Records set or tied on this calendar date in each year from 1797 to 1973. 1973 had 774 records.

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

Records on 09-15 in each year
Year	Records
1797	1
1803	1
1806	2
1810	1
1816	1
1818	1
1823	2
1833	1
1836	1
1837	2
1839	1
1841	1
1848	1
1850	1
1851	1
1854	2
1856	1
1857	1
1859	1
1864	1
1865	2
1866	1
1867	2
1868	1
1869	1
1872	1
1873	2
1876	2
1877	2
1880	1
1881	1
1882	6
1884	3
1885	4
1886	2
1887	3
1888	1
1889	5
1890	1
1894	4
1895	1
1897	1
1898	3
1899	3
1900	1
1901	12
1902	7
1903	31
1904	30
1905	16
1906	6
1907	7
1908	16
1909	16
1910	2
1911	40
1912	64
1913	43
1914	18
1915	94
1916	44
1917	50
1918	50
1919	52
1920	164
1921	122
1922	53
1923	193
1924	103
1925	112
1926	134
1927	539
1928	86
1929	99
1930	235
1931	422
1932	295
1933	322
1934	351
1935	463
1936	460
1937	337
1938	247
1939	1,098
1940	181
1941	276
1942	278
1943	360
1944	396
1945	418
1946	411
1947	621
1948	557
1949	523
1950	750
1951	283
1952	455
1953	400
1954	518
1955	532
1956	646
1957	449
1958	294
1959	844
1960	410
1961	586
1962	557
1963	455
1964	839
1965	614
1966	534
1967	578
1968	429
1969	362
1970	1,157
1971	598
1972	356
1973	774
1974	386
1975	739
1976	667
1977	400
1978	628
1979	1,022
1980	563
1981	613
1982	1,315
1983	756
1984	766
1985	764
1986	928
1987	719
1988	818
1989	955
1990	911
1991	1,165
1992	919
1993	2,227
1994	1,363
1995	723
1996	1,212
1997	1,177
1998	1,768
1999	858
2000	1,175
2001	837
2002	1,212
2003	855
2004	893
2005	1,123
2006	1,042
2007	946
2008	1,153
2009	773
2010	913
2011	1,170
2012	568
2013	854
2014	443
2015	997
2016	988
2017	825
2018	874
2019	538
2020	785
2021	467
2022	392
2023	507
2024	681
2025	503
2026	779

Download the Data

Data for records on 1973-09-15: 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	618
20 to 40	36
40 to 60	13
60 to 80	2
80 to 100	1