Weather Records on 4 September 1921

105 weather records were set or tied worldwide on 4 September 1921. Highest significance: Tambo Post Office, AU.

Key Facts for 4 September 1921

On 4 September 1921, 105 weather records were set or tied at long-record stations worldwide.
24 were record highs and 6 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 2 monthly and 102 daily.
Tambo Post Office set a daily record precipitation of 46.2 mm (1.8 in) on 4 September 1921.
Across 165 earlier years (1802 to 2026) the same calendar date averaged 453 records.

Record Map

105 stations

105 station records on 4 September 1921 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 September 1921: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tambo Post Office	Australia	Record daily precipitation	46.2 mm (1.8 in)	48 of 100 (Notable)
Blackall Township	Australia	Record daily precipitation	46.7 mm (1.8 in)	45 of 100 (Notable)
Forest Vale	Australia	Record daily precipitation	63.5 mm (2.5 in)	42 of 100 (Notable)
Alice Post Office	Australia	Record daily precipitation	68.6 mm (2.7 in)	40 of 100 (Notable)
Barcaldine Post Office	Australia	Record daily precipitation	38.1 mm (1.5 in)	38 of 100 (Notable)
Charleville Post Office	Australia	Record daily precipitation	25.9 mm (1.0 in)	36 of 100 (Notable)
Morven Post Office	Australia	Record daily precipitation	50.0 mm (2.0 in)	34 of 100 (Routine)
Cudgen Plantation	Australia	Record daily precipitation	38.1 mm (1.5 in)	33 of 100 (Routine)
Adrian 2 NNE	United States	Record daily precipitation	96.5 mm (3.8 in)	30 of 100 (Routine)
Bollon Mary St	Australia	Record daily precipitation	39.6 mm (1.6 in)	29 of 100 (Routine)
Goodooga (Brenda)	Australia	Record daily precipitation	30.5 mm (1.2 in)	29 of 100 (Routine)
Cunnamulla Post Office	Australia	Record daily precipitation	29.7 mm (1.2 in)	28 of 100 (Routine)
Lawrence Post Office	Australia	Record daily precipitation	25.4 mm (1.0 in)	26 of 100 (Routine)
Bogantungan Post Office	Australia	Record daily precipitation	26.7 mm (1.1 in)	25 of 100 (Routine)
Aramac Post Office	Australia	Record daily precipitation	27.9 mm (1.1 in)	24 of 100 (Routine)
Toulby	Australia	Record daily precipitation	31.8 mm (1.3 in)	24 of 100 (Routine)
Ramornie	Australia	Record daily precipitation	25.9 mm (1.0 in)	23 of 100 (Routine)
Charlotte Plains	Australia	Record daily precipitation	45.7 mm (1.8 in)	22 of 100 (Routine)
Stratford	Canada	Record high minimum temperature	18.3 C (64.9 F)	22 of 100 (Routine)
Maneroo	Australia	Record daily precipitation	22.1 mm (0.9 in)	20 of 100 (Routine)
Windorah Post Office	Australia	Record daily precipitation	17.5 mm (0.7 in)	20 of 100 (Routine)
Gumbardo	Australia	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Grafton City Council	Australia	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Hughenden Post Office	Australia	Record daily precipitation	11.7 mm (0.5 in)	20 of 100 (Routine)
Angledool (Angledool Station)	Australia	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Yantabulla (Brindingabba)	Australia	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Georgetown Post Office	Australia	Record daily precipitation	2.0 mm (0.08 in)	20 of 100 (Routine)
Isisford Post Office	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Duaringa Post Office	Australia	Record daily precipitation	74.9 mm (2.9 in)	20 of 100 (Routine)
Eulo Post Office	Australia	Record daily precipitation	6.9 mm (0.27 in)	20 of 100 (Routine)
Gnomery	Australia	Record daily precipitation	31.8 mm (1.3 in)	20 of 100 (Routine)
Galway	Ireland	Record low maximum temperature	12.8 C (55.0 F)	20 of 100 (Routine)
Gilbert River Post Office	Australia	Record daily precipitation	1.5 mm (0.06 in)	19 of 100 (Routine)
Dumble	Australia	Record daily precipitation	26.7 mm (1.1 in)	19 of 100 (Routine)
Spring Hill	Australia	Record daily precipitation	27.9 mm (1.1 in)	19 of 100 (Routine)
Enngonia (Shearer Street)	Australia	Record daily precipitation	8.9 mm (0.35 in)	18 of 100 (Routine)
Genoa (Gipsy Point)	Australia	Record daily precipitation	30.7 mm (1.2 in)	18 of 100 (Routine)
Hamilton	Canada	Record high minimum temperature	20.6 C (69.1 F)	18 of 100 (Routine)
Alpha Post Office	Australia	Record daily precipitation	21.6 mm (0.9 in)	17 of 100 (Routine)
Jundah Post Office	Australia	Record daily precipitation	20.6 mm (0.8 in)	17 of 100 (Routine)
New Angledool Telephone Office	Australia	Record daily precipitation	24.1 mm (0.9 in)	17 of 100 (Routine)
Ilulissat (Jakobshavn)	Greenland [Denmark]	Record high minimum temperature	9.7 C (49.5 F)	17 of 100 (Routine)
Algiers-Ville/Universite	Algeria	Record high maximum temperature	36.0 C (96.8 F)	16 of 100 (Routine)
Augathella Post Office	Australia	Record daily precipitation	21.6 mm (0.9 in)	16 of 100 (Routine)
Fernmount	Australia	Record daily precipitation	10.9 mm (0.4 in)	16 of 100 (Routine)
Woodstock	Canada	Record high minimum temperature	18.3 C (64.9 F)	16 of 100 (Routine)
Constantine	Algeria	Record high maximum temperature	39.0 C (102.2 F)	15 of 100 (Routine)
Bourke (Beemery)	Australia	Record daily precipitation	8.9 mm (0.35 in)	15 of 100 (Routine)
Bowraville Recreation Club	Australia	Record daily precipitation	11.2 mm (0.4 in)	15 of 100 (Routine)
Englesberg Village	Australia	Record daily precipitation	1.3 mm (0.05 in)	14 of 100 (Routine)
Charlton	Australia	Record daily precipitation	6.4 mm (0.25 in)	14 of 100 (Routine)
Lismore (Centre Street)	Australia	Record daily precipitation	38.1 mm (1.5 in)	14 of 100 (Routine)
Newport	United States	Record high minimum temperature	22.2 C (72.0 F)	14 of 100 (Routine)
Thargomindah Post Office	Australia	Record daily precipitation	11.7 mm (0.5 in)	13 of 100 (Routine)
Collerina (Corrella)	Australia	Record daily precipitation	5.3 mm (0.21 in)	13 of 100 (Routine)
Glen Innes Post Office	Australia	Record daily precipitation	3.8 mm (0.15 in)	13 of 100 (Routine)
Ebor (Kotupna)	Australia	Record daily precipitation	10.4 mm (0.4 in)	13 of 100 (Routine)
Butterworth (Tnk)	South Africa	Record daily precipitation	5.8 mm (0.23 in)	13 of 100 (Routine)
Mundoolin	Australia	Record daily precipitation	3.3 mm (0.13 in)	12 of 100 (Routine)
Boorara	Australia	Record daily precipitation	6.9 mm (0.27 in)	12 of 100 (Routine)

Counts by Type and Timescale

105 records

Records set or tied on 4 September 1921 by type: Highest daily maximum 6, Lowest daily maximum 5, Highest daily minimum 18, Lowest daily minimum 1, Heaviest daily rainfall 75.

Records on 4 September 1921 by type
Record type	Records
Highest daily maximum	6
Lowest daily maximum	5
Highest daily minimum	18
Lowest daily minimum	1
Heaviest daily rainfall	75
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 September 1921 by timescale: all-time 1, monthly 2, daily 102.

How Much Records Were Beaten By

90 broken records

Margins by which the 90 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 57.2. Ties are not counted.

Top 20 by Significance

4 September 1921

Top 20 records on 4 September 1921 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 September 1921	Tambo Post Office, AU	daily rain	46.2 mm (1.8 in)	46.2 mm (1.8 in)	33 years	48 of 100 (Notable)
4 September 1921	Blackall Township, AU	daily rain	46.7 mm (1.8 in)	44.7 mm (1.8 in)	15 years	45 of 100 (Notable)
4 September 1921	Forest Vale, AU	daily rain	63.5 mm (2.5 in)	53.1 mm (2.1 in)	0 years	42 of 100 (Notable)
4 September 1921	Alice Post Office, AU	daily rain	68.6 mm (2.7 in)	57.2 mm (2.3 in)	15 years	40 of 100 (Notable)
4 September 1921	Barcaldine Post Office, AU	daily rain	38.1 mm (1.5 in)	37.1 mm (1.5 in)	15 years	38 of 100 (Notable)
4 September 1921	Charleville Post Office, AU	daily rain	25.9 mm (1.0 in)	23.1 mm (0.9 in)	28 years	36 of 100 (Notable)
4 September 1921	Morven Post Office, AU	daily rain	50.0 mm (2.0 in)	36.8 mm (1.4 in)	0 years	34 of 100 (Routine)
4 September 1921	Cudgen Plantation, AU	daily rain	38.1 mm (1.5 in)	34.8 mm (1.4 in)	21 years	33 of 100 (Routine)
4 September 1921	Adrian 2 NNE, US	all-time rain	96.5 mm (3.8 in)	5.1 mm (0.20 in)	16 years	30 of 100 (Routine)
4 September 1921	Bollon Mary St, AU	daily rain	39.6 mm (1.6 in)	26.9 mm (1.1 in)	0 years	29 of 100 (Routine)
4 September 1921	Goodooga (Brenda), AU	daily rain	30.5 mm (1.2 in)	20.3 mm (0.8 in)	12 years	29 of 100 (Routine)
4 September 1921	Cunnamulla Post Office, AU	daily rain	29.7 mm (1.2 in)	14.5 mm (0.6 in)	28 years	28 of 100 (Routine)
4 September 1921	Lawrence Post Office, AU	daily rain	25.4 mm (1.0 in)	20.8 mm (0.8 in)	26 years	26 of 100 (Routine)
4 September 1921	Bogantungan Post Office, AU	daily rain	26.7 mm (1.1 in)	21.4 mm (0.8 in)	15 years	25 of 100 (Routine)
4 September 1921	Aramac Post Office, AU	daily rain	27.9 mm (1.1 in)	25.4 mm (1.0 in)	15 years	24 of 100 (Routine)
4 September 1921	Toulby, AU	daily rain	31.8 mm (1.3 in)	24.2 mm (1.0 in)	12 years	24 of 100 (Routine)
4 September 1921	Ramornie, AU	daily rain	25.9 mm (1.0 in)	19.3 mm (0.8 in)	0 years	23 of 100 (Routine)
4 September 1921	Charlotte Plains, AU	monthly rain	45.7 mm (1.8 in)	1.8 mm (0.07 in)	23 years	22 of 100 (Routine)
4 September 1921	Stratford, CA	daily high min	18.3 C (64.9 F)	0.5 C (0.9 F)	55 years	22 of 100 (Routine)
4 September 1921	Maneroo, AU	daily rain	22.1 mm (0.9 in)	22.1 mm (0.9 in)	36 years	20 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

1802 to 1921

Records set or tied on this calendar date in each year from 1802 to 1921. 1921 had 105 records.

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

Records on 09-04 in each year
Year	Records
1802	1
1805	1
1823	1
1833	1
1837	1
1839	1
1845	1
1847	1
1850	1
1854	1
1856	1
1857	1
1858	1
1861	1
1863	1
1864	1
1867	1
1868	1
1869	2
1871	1
1872	4
1874	1
1875	1
1877	1
1880	4
1881	1
1883	2
1885	3
1887	1
1888	2
1889	1
1890	1
1891	5
1894	4
1895	6
1896	1
1897	4
1898	9
1899	4
1900	1
1901	4
1902	4
1903	2
1904	7
1905	18
1906	16
1907	22
1908	9
1909	23
1910	91
1911	25
1912	29
1913	29
1914	19
1915	37
1916	24
1917	40
1918	96
1919	48
1920	105
1921	105
1922	62
1923	325
1924	167
1925	339
1926	256
1927	68
1928	341
1929	371
1930	102
1931	477
1932	429
1933	424
1934	393
1935	514
1936	309
1937	411
1938	236
1939	434
1940	287
1941	528
1942	323
1943	472
1944	341
1945	542
1946	431
1947	618
1948	409
1949	370
1950	642
1951	404
1952	645
1953	869
1954	372
1955	465
1956	586
1957	250
1958	384
1959	316
1960	552
1961	909
1962	733
1963	443
1964	507
1965	611
1966	428
1967	786
1968	546
1969	510
1970	644
1971	717
1972	513
1973	530
1974	2,279
1975	432
1976	582
1977	386
1978	940
1979	461
1980	355
1981	582
1982	617
1983	1,040
1984	1,107
1985	915
1986	663
1987	685
1988	1,259
1989	681
1990	787
1991	708
1992	1,132
1993	859
1994	1,001
1995	1,287
1996	907
1997	1,452
1998	1,564
1999	1,479
2000	1,336
2001	833
2002	767
2003	1,094
2004	898
2005	998
2006	1,268
2007	1,077
2008	1,335
2009	914
2010	1,804
2011	1,310
2012	1,209
2013	630
2014	461
2015	893
2016	597
2017	881
2018	758
2019	616
2020	957
2021	544
2022	1,256
2023	1,290
2024	985
2025	635
2026	1,222

Download the Data

Data for records on 1921-09-04: 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).

Histogram of margins by which records were beaten on 4 September 1921
Margin	Records
0 to 10	58
10 to 20	16
20 to 30	9
30 to 40	3
40 to 50	2
50 to 60	2