Weather Records on 11 September 1920

158 weather records were set or tied worldwide on 11 September 1920. Highest significance: Gragin, AU.

Key Facts for 11 September 1920

On 11 September 1920, 158 weather records were set or tied at long-record stations worldwide.
9 were record highs and 3 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 3 monthly and 155 daily.
Gragin set a daily record precipitation of 39.1 mm (1.5 in) on 11 September 1920.
Across 164 earlier years (1809 to 2026) the same calendar date averaged 425 records.

Record Map

158 stations

158 station records on 11 September 1920 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 September 1920: highest significance records shown on the map
Station	Country	Type	Value	Significance
Gragin	Australia	Record daily precipitation	39.1 mm (1.5 in)	53 of 100 (Notable)
New Westminster	Canada	Record daily precipitation	75.4 mm (3.0 in)	49 of 100 (Notable)
Moree Post Office	Australia	Record daily precipitation	37.6 mm (1.5 in)	42 of 100 (Notable)
Margate Collins St	Australia	Record daily precipitation	54.6 mm (2.1 in)	39 of 100 (Notable)
Warialda Post Office	Australia	Record daily precipitation	50.3 mm (2.0 in)	38 of 100 (Notable)
Sable Island East End	Canada	Record daily precipitation	38.1 mm (1.5 in)	38 of 100 (Notable)
Dalby Post Office	Australia	Record daily precipitation	43.7 mm (1.7 in)	37 of 100 (Notable)
Warra Post Office	Australia	Record daily precipitation	41.9 mm (1.6 in)	36 of 100 (Notable)
Ebor (Kotupna)	Australia	Record daily precipitation	26.4 mm (1.0 in)	34 of 100 (Routine)
Gravesend Post Office	Australia	Record daily precipitation	73.2 mm (2.9 in)	33 of 100 (Routine)
Killarney Post Office	Australia	Record daily precipitation	36.6 mm (1.4 in)	32 of 100 (Routine)
Carcoar	Australia	Record daily precipitation	33.8 mm (1.3 in)	31 of 100 (Routine)
Eidsvold Post Office	Australia	Record daily precipitation	40.4 mm (1.6 in)	29 of 100 (Routine)
Cuerindi	Australia	Record daily precipitation	33.0 mm (1.3 in)	29 of 100 (Routine)
Murringo (Windermere)	Australia	Record daily precipitation	35.1 mm (1.4 in)	28 of 100 (Routine)
Gigoomgan	Australia	Record daily precipitation	36.3 mm (1.4 in)	27 of 100 (Routine)
Leyburn Post Office	Australia	Record daily precipitation	34.3 mm (1.4 in)	26 of 100 (Routine)
Miles Post Office	Australia	Record daily precipitation	33.8 mm (1.3 in)	26 of 100 (Routine)
Esk Post Office	Australia	Record daily precipitation	46.5 mm (1.8 in)	25 of 100 (Routine)
Englesberg Village	Australia	Record daily precipitation	34.3 mm (1.4 in)	25 of 100 (Routine)
Warwick Post Office	Australia	Record daily precipitation	27.2 mm (1.1 in)	25 of 100 (Routine)
Coldwater	Canada	Record daily precipitation	28.7 mm (1.1 in)	25 of 100 (Routine)
Emmaville Post Office	Australia	Record daily precipitation	39.1 mm (1.5 in)	24 of 100 (Routine)
Caboolture Post Office	Australia	Record daily precipitation	33.5 mm (1.3 in)	23 of 100 (Routine)
Roseberry	Australia	Record daily precipitation	26.7 mm (1.1 in)	23 of 100 (Routine)
Amcor - Petrie Mill	Australia	Record daily precipitation	31.8 mm (1.3 in)	22 of 100 (Routine)
Kilkivan Post Office	Australia	Record daily precipitation	30.2 mm (1.2 in)	21 of 100 (Routine)
Brungle (Rosemount)	Australia	Record daily precipitation	25.4 mm (1.0 in)	21 of 100 (Routine)
Cap Chat	Canada	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Biamble	Australia	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Mount Remarkable	Australia	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Melrose	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Beenleigh Post Office	Australia	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Grafton City Council	Australia	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
Obley	Australia	Record daily precipitation	6.6 mm (0.26 in)	20 of 100 (Routine)
Barnawartha	Australia	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
St Albans	Canada	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Sarna	Sweden	Record daily precipitation	20.0 mm (0.8 in)	20 of 100 (Routine)
Hawkwood Station	Australia	Record daily precipitation	23.9 mm (0.9 in)	20 of 100 (Routine)
Cambooya Post Office	Australia	Record daily precipitation	23.6 mm (0.9 in)	20 of 100 (Routine)
Toowoomba	Australia	Record daily precipitation	26.9 mm (1.1 in)	20 of 100 (Routine)
Guelph Oac	Canada	Record daily precipitation	23.4 mm (0.9 in)	20 of 100 (Routine)
Lindsay	Canada	Record daily precipitation	19.8 mm (0.8 in)	20 of 100 (Routine)
Nerang Gilston Rd	Australia	Record daily precipitation	27.4 mm (1.1 in)	19 of 100 (Routine)
Aberfoyle	Australia	Record daily precipitation	17.0 mm (0.7 in)	19 of 100 (Routine)
Paarl (Tnk)	South Africa	Record daily precipitation	32.3 mm (1.3 in)	19 of 100 (Routine)
Sfax El-Maou	Tunisia	Record high maximum temperature	40.0 C (104.0 F)	19 of 100 (Routine)
Sandy Cape Lighthouse	Australia	Record daily precipitation	24.4 mm (1.0 in)	18 of 100 (Routine)
Mullaley (Bando)	Australia	Record daily precipitation	19.1 mm (0.8 in)	18 of 100 (Routine)
Deepwater Post Office	Australia	Record daily precipitation	29.2 mm (1.1 in)	18 of 100 (Routine)
Emmaville (Strathbogie)	Australia	Record daily precipitation	25.7 mm (1.0 in)	18 of 100 (Routine)
Ramornie	Australia	Record daily precipitation	16.3 mm (0.6 in)	18 of 100 (Routine)
Woodford Post Office	Australia	Record daily precipitation	34.3 mm (1.4 in)	17 of 100 (Routine)
Pittsworth	Australia	Record daily precipitation	23.9 mm (0.9 in)	17 of 100 (Routine)
Stanthorpe Leslie Parade	Australia	Record daily precipitation	26.2 mm (1.0 in)	17 of 100 (Routine)
Wombat (Tumbleton)	Australia	Record daily precipitation	16.5 mm (0.6 in)	17 of 100 (Routine)
Agassiz Cda	Canada	Record daily precipitation	34.5 mm (1.4 in)	17 of 100 (Routine)
Port Augusta West	Australia	Record daily precipitation	9.9 mm (0.39 in)	16 of 100 (Routine)
Tweed Heads Golf Club	Australia	Record daily precipitation	28.4 mm (1.1 in)	16 of 100 (Routine)
Bellbrook (East Street)	Australia	Record daily precipitation	20.8 mm (0.8 in)	16 of 100 (Routine)

Counts by Type and Timescale

158 records

Records set or tied on 11 September 1920 by type: Highest daily maximum 1, Lowest daily maximum 3, Highest daily minimum 8, Heaviest daily rainfall 146.

Records on 11 September 1920 by type
Record type	Records
Highest daily maximum	1
Lowest daily maximum	3
Highest daily minimum	8
Lowest daily minimum	0
Heaviest daily rainfall	146
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 11 September 1920 by timescale: all-time 0, monthly 3, daily 155.

How Much Records Were Beaten By

147 broken records

Margins by which the 147 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 57.4. Ties are not counted.

Top 20 by Significance

11 September 1920

Top 20 records on 11 September 1920 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 September 1920	Gragin, AU	daily rain	39.1 mm (1.5 in)	39.1 mm (1.5 in)	34 years	53 of 100 (Notable)
11 September 1920	New Westminster, CA	daily rain	75.4 mm (3.0 in)	57.4 mm (2.3 in)	19 years	49 of 100 (Notable)
11 September 1920	Moree Post Office, AU	daily rain	37.6 mm (1.5 in)	27.4 mm (1.1 in)	39 years	42 of 100 (Notable)
11 September 1920	Margate Collins St, AU	daily rain	54.6 mm (2.1 in)	31.7 mm (1.2 in)	21 years	39 of 100 (Notable)
11 September 1920	Warialda Post Office, AU	daily rain	50.3 mm (2.0 in)	24.9 mm (1.0 in)	38 years	38 of 100 (Notable)
11 September 1920	Sable Island East End, CA	daily rain	38.1 mm (1.5 in)	30.7 mm (1.2 in)	24 years	38 of 100 (Notable)
11 September 1920	Dalby Post Office, AU	daily rain	43.7 mm (1.7 in)	28.2 mm (1.1 in)	21 years	37 of 100 (Notable)
11 September 1920	Warra Post Office, AU	daily rain	41.9 mm (1.6 in)	30.0 mm (1.2 in)	21 years	36 of 100 (Notable)
11 September 1920	Ebor (Kotupna), AU	daily rain	26.4 mm (1.0 in)	18.3 mm (0.7 in)	25 years	34 of 100 (Routine)
11 September 1920	Gravesend Post Office, AU	monthly rain	73.2 mm (2.9 in)	13.5 mm (0.5 in)	28 years	33 of 100 (Routine)
11 September 1920	Killarney Post Office, AU	daily rain	36.6 mm (1.4 in)	20.6 mm (0.8 in)	27 years	32 of 100 (Routine)
11 September 1920	Carcoar, AU	daily rain	33.8 mm (1.3 in)	19.1 mm (0.8 in)	14 years	31 of 100 (Routine)
11 September 1920	Eidsvold Post Office, AU	daily rain	40.4 mm (1.6 in)	26.7 mm (1.1 in)	21 years	29 of 100 (Routine)
11 September 1920	Cuerindi, AU	daily rain	33.0 mm (1.3 in)	21.3 mm (0.8 in)	14 years	29 of 100 (Routine)
11 September 1920	Murringo (Windermere), AU	daily rain	35.1 mm (1.4 in)	16.6 mm (0.7 in)	16 years	28 of 100 (Routine)
11 September 1920	Gigoomgan, AU	daily rain	36.3 mm (1.4 in)	19.0 mm (0.7 in)	21 years	27 of 100 (Routine)
11 September 1920	Leyburn Post Office, AU	daily rain	34.3 mm (1.4 in)	16.0 mm (0.6 in)	27 years	26 of 100 (Routine)
11 September 1920	Miles Post Office, AU	daily rain	33.8 mm (1.3 in)	17.3 mm (0.7 in)	14 years	26 of 100 (Routine)
11 September 1920	Esk Post Office, AU	daily rain	46.5 mm (1.8 in)	22.9 mm (0.9 in)	11 years	25 of 100 (Routine)
11 September 1920	Englesberg Village, AU	daily rain	34.3 mm (1.4 in)	13.7 mm (0.5 in)	30 years	25 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

1809 to 1920

Records set or tied on this calendar date in each year from 1809 to 1920. 1920 had 158 records.

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

Records on 09-11 in each year
Year	Records
1809	1
1814	3
1818	1
1830	1
1836	1
1838	3
1839	1
1848	1
1850	1
1851	1
1854	2
1858	1
1860	2
1861	1
1863	2
1865	3
1866	1
1874	2
1876	1
1877	1
1879	1
1880	1
1882	4
1883	2
1884	1
1886	1
1888	2
1889	4
1890	2
1891	2
1892	1
1893	4
1894	2
1895	4
1896	1
1897	3
1898	3
1899	5
1900	1
1901	3
1902	15
1903	13
1904	4
1905	5
1906	10
1907	9
1908	20
1909	12
1910	19
1911	9
1912	25
1913	22
1914	52
1915	160
1916	17
1917	88
1918	62
1919	52
1920	158
1921	52
1922	78
1923	44
1924	290
1925	260
1926	137
1927	300
1928	127
1929	206
1930	136
1931	868
1932	210
1933	276
1934	144
1935	410
1936	567
1937	324
1938	288
1939	561
1940	891
1941	210
1942	234
1943	335
1944	446
1945	341
1946	262
1947	611
1948	424
1949	450
1950	462
1951	247
1952	549
1953	392
1954	363
1955	479
1956	539
1957	470
1958	748
1959	488
1960	423
1961	524
1962	480
1963	359
1964	1,195
1965	414
1966	392
1967	478
1968	835
1969	685
1970	474
1971	464
1972	507
1973	612
1974	430
1975	644
1976	920
1977	406
1978	911
1979	596
1980	474
1981	347
1982	862
1983	1,243
1984	888
1985	844
1986	1,221
1987	595
1988	1,019
1989	1,301
1990	840
1991	843
1992	672
1993	809
1994	713
1995	619
1996	1,030
1997	808
1998	1,821
1999	1,073
2000	1,469
2001	826
2002	1,059
2003	1,022
2004	740
2005	1,163
2006	1,132
2007	947
2008	916
2009	774
2010	965
2011	1,051
2012	687
2013	1,207
2014	1,100
2015	683
2016	677
2017	916
2018	763
2019	806
2020	1,235
2021	851
2022	617
2023	1,034
2024	889
2025	917
2026	615

Download the Data

Data for records on 1920-09-11: 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	103
10 to 20	32
20 to 30	7
30 to 40	4
40 to 50	0
50 to 60	1