Weather Records on 15 September 1921

122 weather records were set or tied worldwide on 15 September 1921. Highest significance: Moorland (Denro-An), AU.

Key Facts for 15 September 1921

On 15 September 1921, 122 weather records were set or tied at long-record stations worldwide.
26 were record highs and 5 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 122 daily.
Moorland (Denro-An) set a daily record precipitation of 98.0 mm (3.9 in) on 15 September 1921.
Across 170 earlier years (1797 to 2026) the same calendar date averaged 415 records.

Record Map

122 stations

122 station records on 15 September 1921 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 September 1921: highest significance records shown on the map
Station	Country	Type	Value	Significance
Moorland (Denro-An)	Australia	Record daily precipitation	98.0 mm (3.9 in)	47 of 100 (Notable)
Port Macquarie (Bellevue Garde	Australia	Record daily precipitation	113.0 mm (4.4 in)	47 of 100 (Notable)
Stroud Post Office	Australia	Record daily precipitation	69.9 mm (2.8 in)	44 of 100 (Notable)
Harrington (Oxley Anchorage Ca	Australia	Record daily precipitation	75.9 mm (3.0 in)	38 of 100 (Notable)
La Crosse Wb City	United States	Record daily precipitation	61.5 mm (2.4 in)	37 of 100 (Notable)
Emmaville (Strathbogie)	Australia	Record daily precipitation	43.2 mm (1.7 in)	32 of 100 (Routine)
Ramornie	Australia	Record daily precipitation	45.2 mm (1.8 in)	30 of 100 (Routine)
Bannockburn	Australia	Record daily precipitation	37.1 mm (1.5 in)	29 of 100 (Routine)
Grafton City Council	Australia	Record daily precipitation	36.8 mm (1.4 in)	29 of 100 (Routine)
Bingara Post Office	Australia	Record daily precipitation	25.9 mm (1.0 in)	28 of 100 (Routine)
Gragin	Australia	Record daily precipitation	27.2 mm (1.1 in)	28 of 100 (Routine)
Burwood 1	Australia	Record daily precipitation	27.9 mm (1.1 in)	27 of 100 (Routine)
Madison Wb City	United States	Record daily precipitation	35.1 mm (1.4 in)	26 of 100 (Routine)
Emmaville Post Office	Australia	Record daily precipitation	47.2 mm (1.9 in)	25 of 100 (Routine)
Gloucester Post Office	Australia	Record daily precipitation	53.8 mm (2.1 in)	24 of 100 (Routine)
Texas Station	Australia	Record daily precipitation	35.1 mm (1.4 in)	21 of 100 (Routine)
Deepwater Post Office	Australia	Record daily precipitation	41.9 mm (1.6 in)	21 of 100 (Routine)
Stonehenge	Australia	Record daily precipitation	36.8 mm (1.4 in)	21 of 100 (Routine)
Bondi	Australia	Record daily precipitation	26.9 mm (1.1 in)	21 of 100 (Routine)
Jena Sternwarte	Germany	Record high maximum temperature	27.8 C (82.0 F)	21 of 100 (Routine)
Arnsberg	Germany	Record high maximum temperature	27.5 C (81.5 F)	21 of 100 (Routine)
Yallaroi	Australia	Record daily precipitation	23.6 mm (0.9 in)	20 of 100 (Routine)
Branxton (Dalwood Vineyard)	Australia	Record daily precipitation	19.3 mm (0.8 in)	20 of 100 (Routine)
Old Baratta Homestead	Australia	Record daily precipitation	11.2 mm (0.4 in)	20 of 100 (Routine)
Magdeburg	Germany	Record daily precipitation	17.1 mm (0.7 in)	20 of 100 (Routine)
Sandy Creek	Australia	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Plauen	Germany	Record high maximum temperature	27.4 C (81.3 F)	20 of 100 (Routine)
Hillgrove (Hillview)	Australia	Record daily precipitation	28.7 mm (1.1 in)	19 of 100 (Routine)
Casino Airport	Australia	Record daily precipitation	34.3 mm (1.4 in)	19 of 100 (Routine)
Katoomba (Murri St)	Australia	Record daily precipitation	25.4 mm (1.0 in)	19 of 100 (Routine)
Orroroo (Black Rock)	Australia	Record daily precipitation	10.4 mm (0.4 in)	18 of 100 (Routine)
Gravesend Post Office	Australia	Record daily precipitation	21.8 mm (0.9 in)	18 of 100 (Routine)
Bingara (Keera)	Australia	Record daily precipitation	32.5 mm (1.3 in)	18 of 100 (Routine)
Temora Ambulance Station	Australia	Record daily precipitation	23.4 mm (0.9 in)	18 of 100 (Routine)
Karlsruhe	Germany	Record high maximum temperature	29.4 C (84.9 F)	18 of 100 (Routine)
Glen Innes Post Office	Australia	Record daily precipitation	40.6 mm (1.6 in)	17 of 100 (Routine)
Inverell Comparison	Australia	Record daily precipitation	27.2 mm (1.1 in)	17 of 100 (Routine)
Yamba Pilot Station	Australia	Record daily precipitation	36.1 mm (1.4 in)	17 of 100 (Routine)
Wauchope (Avondale Street)	Australia	Record daily precipitation	53.1 mm (2.1 in)	17 of 100 (Routine)
Obley	Australia	Record daily precipitation	10.4 mm (0.4 in)	17 of 100 (Routine)
Coonamble Comparison	Australia	Record daily precipitation	9.9 mm (0.39 in)	16 of 100 (Routine)
Pallal	Australia	Record daily precipitation	15.5 mm (0.6 in)	16 of 100 (Routine)
Lismore (Centre Street)	Australia	Record daily precipitation	34.8 mm (1.4 in)	16 of 100 (Routine)
Muncheberg	Germany	Record daily precipitation	18.4 mm (0.7 in)	16 of 100 (Routine)
Yunta (Winnininnie)	Australia	Record daily precipitation	9.1 mm (0.36 in)	15 of 100 (Routine)
Gladstone	Australia	Record daily precipitation	12.7 mm (0.5 in)	15 of 100 (Routine)
Gympie	Australia	Record daily precipitation	10.2 mm (0.4 in)	15 of 100 (Routine)
Laidley Post Office	Australia	Record daily precipitation	32.5 mm (1.3 in)	15 of 100 (Routine)
Leyburn Post Office	Australia	Record daily precipitation	20.8 mm (0.8 in)	15 of 100 (Routine)
Ebor (Wongwibinda)	Australia	Record daily precipitation	23.4 mm (0.9 in)	15 of 100 (Routine)
Boomanoomana	Australia	Record daily precipitation	11.4 mm (0.4 in)	15 of 100 (Routine)
Munchen-Nymphenburg	Germany	Record high maximum temperature	27.6 C (81.7 F)	15 of 100 (Routine)
Vilnius	Lithuania	Record daily precipitation	8.1 mm (0.32 in)	15 of 100 (Routine)
Wilmington Wb City	United States	Record high maximum temperature	32.2 C (90.0 F)	15 of 100 (Routine)
Hawker (Warcowie)	Australia	Record daily precipitation	2.3 mm (0.09 in)	14 of 100 (Routine)
Garah (Welbon)	Australia	Record daily precipitation	15.2 mm (0.6 in)	14 of 100 (Routine)
Barraba (Mount Lindsay)	Australia	Record daily precipitation	14.2 mm (0.6 in)	14 of 100 (Routine)
Bundarra Post Office	Australia	Record daily precipitation	21.6 mm (0.9 in)	14 of 100 (Routine)
Rollands Plains	Australia	Record daily precipitation	38.4 mm (1.5 in)	14 of 100 (Routine)
Camden (Brownlow Hill)	Australia	Record daily precipitation	9.9 mm (0.39 in)	14 of 100 (Routine)

Counts by Type and Timescale

122 records

Records set or tied on 15 September 1921 by type: Highest daily maximum 15, Lowest daily maximum 2, Highest daily minimum 11, Lowest daily minimum 3, Heaviest daily rainfall 91.

Records on 15 September 1921 by type
Record type	Records
Highest daily maximum	15
Lowest daily maximum	2
Highest daily minimum	11
Lowest daily minimum	3
Heaviest daily rainfall	91
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 15 September 1921 by timescale: all-time 0, monthly 0, daily 122.

How Much Records Were Beaten By

111 broken records

Margins by which the 111 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 71.3. Ties are not counted.

Top 20 by Significance

15 September 1921

Top 20 records on 15 September 1921 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 September 1921	Moorland (Denro-An), AU	daily rain	98.0 mm (3.9 in)	71.3 mm (2.8 in)	33 years	47 of 100 (Notable)
15 September 1921	Port Macquarie (Bellevue Garde, AU	daily rain	113.0 mm (4.4 in)	52.0 mm (2.0 in)	45 years	47 of 100 (Notable)
15 September 1921	Stroud Post Office, AU	daily rain	69.9 mm (2.8 in)	48.6 mm (1.9 in)	29 years	44 of 100 (Notable)
15 September 1921	Harrington (Oxley Anchorage Ca, AU	daily rain	75.9 mm (3.0 in)	46.4 mm (1.8 in)	29 years	38 of 100 (Notable)
15 September 1921	La Crosse Wb City, US	daily rain	61.5 mm (2.4 in)	30.5 mm (1.2 in)	30 years	37 of 100 (Notable)
15 September 1921	Emmaville (Strathbogie), AU	daily rain	43.2 mm (1.7 in)	23.6 mm (0.9 in)	29 years	32 of 100 (Routine)
15 September 1921	Ramornie, AU	daily rain	45.2 mm (1.8 in)	25.1 mm (1.0 in)	4 years	30 of 100 (Routine)
15 September 1921	Bannockburn, AU	daily rain	37.1 mm (1.5 in)	27.7 mm (1.1 in)	3 years	29 of 100 (Routine)
15 September 1921	Grafton City Council, AU	daily rain	36.8 mm (1.4 in)	16.2 mm (0.6 in)	32 years	29 of 100 (Routine)
15 September 1921	Bingara Post Office, AU	daily rain	25.9 mm (1.0 in)	16.0 mm (0.6 in)	30 years	28 of 100 (Routine)
15 September 1921	Gragin, AU	daily rain	27.2 mm (1.1 in)	15.8 mm (0.6 in)	29 years	28 of 100 (Routine)
15 September 1921	Burwood 1, AU	daily rain	27.9 mm (1.1 in)	17.2 mm (0.7 in)	29 years	27 of 100 (Routine)
15 September 1921	Madison Wb City, US	daily rain	35.1 mm (1.4 in)	14.3 mm (0.6 in)	39 years	26 of 100 (Routine)
15 September 1921	Emmaville Post Office, AU	daily rain	47.2 mm (1.9 in)	16.7 mm (0.7 in)	29 years	25 of 100 (Routine)
15 September 1921	Gloucester Post Office, AU	daily rain	53.8 mm (2.1 in)	17.5 mm (0.7 in)	29 years	24 of 100 (Routine)
15 September 1921	Texas Station, AU	daily rain	35.1 mm (1.4 in)	12.2 mm (0.5 in)	28 years	21 of 100 (Routine)
15 September 1921	Deepwater Post Office, AU	daily rain	41.9 mm (1.6 in)	18.5 mm (0.7 in)	4 years	21 of 100 (Routine)
15 September 1921	Stonehenge, AU	daily rain	36.8 mm (1.4 in)	17.7 mm (0.7 in)	4 years	21 of 100 (Routine)
15 September 1921	Bondi, AU	daily rain	26.9 mm (1.1 in)	12.7 mm (0.5 in)	26 years	21 of 100 (Routine)
15 September 1921	Jena Sternwarte, DE	daily high max	27.8 C (82.0 F)	1.0 C (1.8 F)	35 years	21 of 100 (Routine)

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 1921

Records set or tied on this calendar date in each year from 1797 to 1921. 1921 had 122 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 1921-09-15: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 10	85
10 to 20	17
20 to 30	4
30 to 40	1
40 to 50	2
50 to 60	1
60 to 70	0
70 to 80	1