Weather Records on 6 September 1940

170 weather records were set or tied worldwide on 6 September 1940. Highest significance: Robben Island (Vrt), ZA.

Key Facts for 6 September 1940

On 6 September 1940, 170 weather records were set or tied at long-record stations worldwide.
83 were record highs and 19 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 166 daily.
Robben Island (Vrt) set a daily record precipitation of 29.2 mm (1.1 in) on 6 September 1940.
Across 164 earlier years (1794 to 2026) the same calendar date averaged 452 records.

Record Map

170 stations

170 station records on 6 September 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 6 September 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Robben Island (Vrt)	South Africa	Record daily precipitation	29.2 mm (1.1 in)	50 of 100 (Notable)
Clifton	United States	Record daily precipitation	49.8 mm (2.0 in)	49 of 100 (Notable)
Table.Mtn Woodhead Tunnel	South Africa	Record daily precipitation	87.4 mm (3.4 in)	45 of 100 (Notable)
Fort Frances	Canada	Record daily precipitation	48.8 mm (1.9 in)	39 of 100 (Notable)
Chatham	Canada	Record daily precipitation	50.3 mm (2.0 in)	39 of 100 (Notable)
Dindigul	India	Record daily precipitation	64.5 mm (2.5 in)	38 of 100 (Notable)
Kawai Iki Intake 880	United States	Record daily precipitation	77.2 mm (3.0 in)	36 of 100 (Notable)
Marungapuri	India	Record daily precipitation	53.1 mm (2.1 in)	34 of 100 (Routine)
Vrugbaar	South Africa	Record daily precipitation	38.9 mm (1.5 in)	34 of 100 (Routine)
Garnett 1 E	United States	Record daily precipitation	47.8 mm (1.9 in)	33 of 100 (Routine)
Vriddhachalam	India	Record daily precipitation	74.4 mm (2.9 in)	29 of 100 (Routine)
Kurinjipadi	India	Record daily precipitation	82.0 mm (3.2 in)	27 of 100 (Routine)
Keilor (Arundel)	Australia	Record daily precipitation	27.7 mm (1.1 in)	26 of 100 (Routine)
Forbes (Camp Street)	Australia	Record high maximum temperature	29.4 C (84.9 F)	25 of 100 (Routine)
Bathurst Gaol	Australia	Record high maximum temperature	25.6 C (78.1 F)	24 of 100 (Routine)
Gyzylarbat	Turkmenistan	Record high minimum temperature	26.8 C (80.2 F)	24 of 100 (Routine)
Berens River	Canada	Record high minimum temperature	18.3 C (64.9 F)	23 of 100 (Routine)
Le Roy	United States	Record daily precipitation	45.2 mm (1.8 in)	23 of 100 (Routine)
Thammampatty	India	Record daily precipitation	26.2 mm (1.0 in)	22 of 100 (Routine)
Cobar Post Office	Australia	Record high maximum temperature	29.8 C (85.6 F)	21 of 100 (Routine)
Cape Town Fire Station	South Africa	Record daily precipitation	26.9 mm (1.1 in)	21 of 100 (Routine)
Ft Pierce	United States	Record low maximum temperature	27.8 C (82.0 F)	21 of 100 (Routine)
Auburn 5 ESE	United States	Record daily precipitation	32.5 mm (1.3 in)	21 of 100 (Routine)
Cooktown Post Office	Australia	Record daily precipitation	19.3 mm (0.8 in)	20 of 100 (Routine)
Buffelshoek	South Africa	Record daily precipitation	23.9 mm (0.9 in)	20 of 100 (Routine)
Gavle	Sweden	Record daily precipitation	18.4 mm (0.7 in)	20 of 100 (Routine)
Verwoedburg-Mu"Lytteltn"	South Africa	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
The Towers	South Africa	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Melfort	Canada	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Bad Lauchstadt	Germany	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Grassy Hill Radio Otc	Australia	Record daily precipitation	8.6 mm (0.34 in)	20 of 100 (Routine)
Tasiilaq	Greenland [Denmark]	Record high maximum temperature	14.4 C (57.9 F)	20 of 100 (Routine)
Wokha	India	Record daily precipitation	55.9 mm (2.2 in)	20 of 100 (Routine)
Troicko-Pecherskoe	Russia	Record high minimum temperature	13.2 C (55.8 F)	20 of 100 (Routine)
Derby	South Africa	Record daily precipitation	7.6 mm (0.30 in)	20 of 100 (Routine)
Luna Rs	United States	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Mt Garnet Post Office	Australia	Record daily precipitation	1.5 mm (0.06 in)	19 of 100 (Routine)
Norway House	Canada	Record high minimum temperature	16.7 C (62.1 F)	19 of 100 (Routine)
Ramdurg	India	Record daily precipitation	17.8 mm (0.7 in)	19 of 100 (Routine)
Tibooburra Post Office	Australia	Record high maximum temperature	32.2 C (90.0 F)	18 of 100 (Routine)
Mekliganj	India	Record daily precipitation	125.0 mm (4.9 in)	18 of 100 (Routine)
Witsieshoek	South Africa	Record daily precipitation	8.4 mm (0.33 in)	18 of 100 (Routine)
Rolfontein	South Africa	Record daily precipitation	5.1 mm (0.20 in)	18 of 100 (Routine)
Wray	United States	Record high minimum temperature	17.2 C (63.0 F)	18 of 100 (Routine)
Moncton	Canada	Record low maximum temperature	13.3 C (55.9 F)	17 of 100 (Routine)
Jhb-Joubert Park	South Africa	Record daily precipitation	1.8 mm (0.07 in)	17 of 100 (Routine)
Hobart (Ellerslie Road)	Australia	Record high minimum temperature	11.6 C (52.9 F)	16 of 100 (Routine)
Berens River	Canada	Record high maximum temperature	28.3 C (82.9 F)	16 of 100 (Routine)
Le Bourget	France	Record high maximum temperature	32.1 C (89.8 F)	16 of 100 (Routine)
Mangalgiri	India	Record daily precipitation	34.3 mm (1.4 in)	16 of 100 (Routine)
Tirukkattupalli	India	Record daily precipitation	47.0 mm (1.9 in)	16 of 100 (Routine)
Royal Observatory	South Africa	Record daily precipitation	24.6 mm (1.0 in)	16 of 100 (Routine)
Germiston-Fj Payne Park	South Africa	Record daily precipitation	6.9 mm (0.27 in)	16 of 100 (Routine)
Boksburg (Mun)	South Africa	Record daily precipitation	2.8 mm (0.11 in)	16 of 100 (Routine)
Waimanalo 794	United States	Record high minimum temperature	24.4 C (75.9 F)	16 of 100 (Routine)
Windsor Kings College	Canada	Record low maximum temperature	16.7 C (62.1 F)	15 of 100 (Routine)
Paramakudi	India	Record daily precipitation	10.7 mm (0.4 in)	15 of 100 (Routine)
Rosherville (Pow)	South Africa	Record daily precipitation	1.8 mm (0.07 in)	15 of 100 (Routine)
Springs (Rwb)	South Africa	Record daily precipitation	5.1 mm (0.20 in)	15 of 100 (Routine)
Kriel (Pol)	South Africa	Record daily precipitation	2.5 mm (0.10 in)	15 of 100 (Routine)

Counts by Type and Timescale

170 records

Records set or tied on 6 September 1940 by type: Highest daily maximum 15, Lowest daily maximum 11, Highest daily minimum 68, Lowest daily minimum 8, Heaviest daily rainfall 68.

Records on 6 September 1940 by type
Record type	Records
Highest daily maximum	15
Lowest daily maximum	11
Highest daily minimum	68
Lowest daily minimum	8
Heaviest daily rainfall	68
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 6 September 1940 by timescale: all-time 0, monthly 4, daily 166.

How Much Records Were Beaten By

120 broken records

Margins by which the 120 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 77.2. Ties are not counted.

Top 20 by Significance

6 September 1940

Top 20 records on 6 September 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 September 1940	Robben Island (Vrt), ZA	daily rain	29.2 mm (1.1 in)	18.5 mm (0.7 in)	37 years	50 of 100 (Notable)
6 September 1940	Clifton, US	daily rain	49.8 mm (2.0 in)	37.1 mm (1.5 in)	31 years	49 of 100 (Notable)
6 September 1940	Table.Mtn Woodhead Tunnel, ZA	monthly rain	87.4 mm (3.4 in)	31.5 mm (1.2 in)	5 years	45 of 100 (Notable)
6 September 1940	Fort Frances, CA	monthly rain	48.8 mm (1.9 in)	15.0 mm (0.6 in)	15 years	39 of 100 (Notable)
6 September 1940	Chatham, CA	daily rain	50.3 mm (2.0 in)	26.2 mm (1.0 in)	19 years	39 of 100 (Notable)
6 September 1940	Dindigul, IN	daily rain	64.5 mm (2.5 in)	36.1 mm (1.4 in)	37 years	38 of 100 (Notable)
6 September 1940	Kawai Iki Intake 880, US	daily rain	77.2 mm (3.0 in)	77.2 mm (3.0 in)	30 years	36 of 100 (Notable)
6 September 1940	Marungapuri, IN	daily rain	53.1 mm (2.1 in)	37.4 mm (1.5 in)	38 years	34 of 100 (Routine)
6 September 1940	Vrugbaar, ZA	daily rain	38.9 mm (1.5 in)	23.7 mm (0.9 in)	13 years	34 of 100 (Routine)
6 September 1940	Garnett 1 E, US	daily rain	47.8 mm (1.9 in)	35.4 mm (1.4 in)	13 years	33 of 100 (Routine)
6 September 1940	Vriddhachalam, IN	daily rain	74.4 mm (2.9 in)	39.3 mm (1.5 in)	21 years	29 of 100 (Routine)
6 September 1940	Kurinjipadi, IN	daily rain	82.0 mm (3.2 in)	28.7 mm (1.1 in)	37 years	27 of 100 (Routine)
6 September 1940	Keilor (Arundel), AU	daily rain	27.7 mm (1.1 in)	5.6 mm (0.22 in)	45 years	26 of 100 (Routine)
6 September 1940	Forbes (Camp Street), AU	daily high max	29.4 C (84.9 F)	1.1 C (2.0 F)	59 years	25 of 100 (Routine)
6 September 1940	Bathurst Gaol, AU	daily high max	25.6 C (78.1 F)	2.8 C (5.0 F)	33 years	24 of 100 (Routine)
6 September 1940	Gyzylarbat, TM	daily high min	26.8 C (80.2 F)	2.3 C (4.1 F)	46 years	24 of 100 (Routine)
6 September 1940	Berens River, CA	daily high min	18.3 C (64.9 F)	5.5 C (9.9 F)	31 years	23 of 100 (Routine)
6 September 1940	Le Roy, US	daily rain	45.2 mm (1.8 in)	27.4 mm (1.1 in)	30 years	23 of 100 (Routine)
6 September 1940	Thammampatty, IN	daily rain	26.2 mm (1.0 in)	12.5 mm (0.5 in)	34 years	22 of 100 (Routine)
6 September 1940	Cobar Post Office, AU	daily high max	29.8 C (85.6 F)	0.9 C (1.6 F)	48 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

1794 to 1940

Records set or tied on this calendar date in each year from 1794 to 1940. 1940 had 170 records.

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

Records on 09-06 in each year
Year	Records
1794	1
1802	1
1803	1
1812	1
1814	2
1833	1
1834	1
1841	1
1853	1
1854	1
1861	1
1865	2
1866	2
1867	1
1868	1
1869	2
1871	2
1872	2
1873	2
1876	1
1877	1
1880	1
1881	3
1883	2
1884	1
1885	1
1887	2
1888	1
1890	3
1891	1
1892	4
1893	2
1894	4
1895	4
1896	2
1897	4
1898	5
1899	5
1900	5
1901	2
1902	5
1903	5
1904	6
1905	14
1906	8
1907	14
1908	36
1909	13
1910	28
1911	20
1912	55
1913	21
1914	23
1915	14
1916	16
1917	23
1918	62
1919	106
1920	172
1921	67
1922	114
1923	153
1924	335
1925	290
1926	123
1927	137
1928	252
1929	359
1930	101
1931	324
1932	275
1933	368
1934	462
1935	341
1936	338
1937	237
1938	322
1939	447
1940	170
1941	276
1942	284
1943	831
1944	392
1945	537
1946	426
1947	895
1948	379
1949	525
1950	699
1951	263
1952	350
1953	396
1954	567
1955	493
1956	735
1957	311
1958	489
1959	405
1960	382
1961	317
1962	772
1963	419
1964	393
1965	722
1966	296
1967	878
1968	512
1969	737
1970	910
1971	436
1972	567
1973	866
1974	897
1975	426
1976	915
1977	467
1978	1,273
1979	892
1980	458
1981	542
1982	744
1983	1,965
1984	1,354
1985	1,371
1986	751
1987	735
1988	1,547
1989	544
1990	805
1991	757
1992	1,084
1993	856
1994	622
1995	1,220
1996	934
1997	1,389
1998	1,385
1999	1,048
2000	1,500
2001	631
2002	867
2003	718
2004	956
2005	601
2006	1,104
2007	1,246
2008	1,430
2009	735
2010	1,259
2011	1,684
2012	803
2013	886
2014	588
2015	692
2016	605
2017	838
2018	714
2019	797
2020	1,349
2021	407
2022	1,782
2023	905
2024	1,161
2025	894
2026	846

Download the Data

Data for records on 1940-09-06: 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	97
10 to 20	10
20 to 30	6
30 to 40	6
40 to 50	0
50 to 60	0
60 to 70	0
70 to 80	1