Weather Records on 11 September 1940

891 weather records were set or tied worldwide on 11 September 1940. Highest significance: Munchen-Nymphenburg, DE.

Key Facts for 11 September 1940

On 11 September 1940, 891 weather records were set or tied at long-record stations worldwide.
137 were record highs and 667 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 9 monthly and 882 daily.
Munchen-Nymphenburg set a daily record precipitation of 72.6 mm (2.9 in) on 11 September 1940.
Across 164 earlier years (1809 to 2026) the same calendar date averaged 421 records.

Record Map

891 stations

891 station records on 11 September 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 September 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Munchen-Nymphenburg	Germany	Record daily precipitation	72.6 mm (2.9 in)	58 of 100 (Notable)
Mysore	India	Record daily precipitation	129.3 mm (5.1 in)	48 of 100 (Notable)
Hanover (Pol)	South Africa	Record daily precipitation	25.4 mm (1.0 in)	48 of 100 (Notable)
Richmond C/K (Tnk)	South Africa	Record daily precipitation	29.0 mm (1.1 in)	47 of 100 (Notable)
Fraserburg	South Africa	Record daily precipitation	27.9 mm (1.1 in)	45 of 100 (Notable)
Kareekloof	South Africa	Record daily precipitation	26.7 mm (1.1 in)	42 of 100 (Notable)
Colesberg (Tnk)	South Africa	Record daily precipitation	27.9 mm (1.1 in)	41 of 100 (Notable)
Mudukulathur	India	Record daily precipitation	39.1 mm (1.5 in)	39 of 100 (Notable)
Vosburg	South Africa	Record daily precipitation	31.8 mm (1.3 in)	37 of 100 (Notable)
De Aar	South Africa	Record daily precipitation	28.2 mm (1.1 in)	36 of 100 (Notable)
Szeged	Hungary	Record daily precipitation	44.9 mm (1.8 in)	35 of 100 (Notable)
Dhulia	India	Record daily precipitation	76.2 mm (3.0 in)	35 of 100 (Notable)
Kamalapuram	India	Record daily precipitation	58.4 mm (2.3 in)	32 of 100 (Routine)
Sattur	India	Record daily precipitation	28.7 mm (1.1 in)	31 of 100 (Routine)
Esperanza	South Africa	Record daily precipitation	26.9 mm (1.1 in)	31 of 100 (Routine)
Arcadia	United States	Record low maximum temperature	25.0 C (77.0 F)	31 of 100 (Routine)
Lincoln UNIV Pwr Plt	United States	Record low minimum temperature	-1.7 C (28.9 F)	31 of 100 (Routine)
Sivakasi	India	Record daily precipitation	64.3 mm (2.5 in)	30 of 100 (Routine)
Goderich	Canada	Record low maximum temperature	13.9 C (57.0 F)	29 of 100 (Routine)
Pecs Pogany	Hungary	Record daily precipitation	30.8 mm (1.2 in)	28 of 100 (Routine)
Roodebloem	South Africa	Record daily precipitation	27.7 mm (1.1 in)	28 of 100 (Routine)
Davenport	United States	Record high minimum temperature	15.6 C (60.1 F)	28 of 100 (Routine)
Rossland City Yard	Canada	Record high maximum temperature	32.8 C (91.0 F)	27 of 100 (Routine)
Regensburg	Germany	Record daily precipitation	26.9 mm (1.1 in)	26 of 100 (Routine)
Reit Im Winkl	Germany	Record daily precipitation	48.4 mm (1.9 in)	26 of 100 (Routine)
Gordonville	South Africa	Record daily precipitation	25.4 mm (1.0 in)	26 of 100 (Routine)
Corning	United States	Record low minimum temperature	3.9 C (39.0 F)	26 of 100 (Routine)
Fairmont	United States	Record low minimum temperature	0.0 C (32.0 F)	26 of 100 (Routine)
Stratford	Canada	Record low maximum temperature	12.8 C (55.0 F)	25 of 100 (Routine)
Kattumannarkoil	India	Record daily precipitation	89.7 mm (3.5 in)	25 of 100 (Routine)
Franklin	United States	Record low minimum temperature	-0.6 C (30.9 F)	25 of 100 (Routine)
Tarboro 1 S	United States	Record daily precipitation	39.4 mm (1.6 in)	25 of 100 (Routine)
Meeker 5 W	United States	Record low minimum temperature	6.1 C (43.0 F)	25 of 100 (Routine)
Narva	Estonia	Record daily precipitation	26.5 mm (1.0 in)	24 of 100 (Routine)
Pusad	India	Record daily precipitation	53.8 mm (2.1 in)	24 of 100 (Routine)
Tylden "Tulden"	South Africa	Record daily precipitation	25.4 mm (1.0 in)	24 of 100 (Routine)
Berea College	United States	Record low maximum temperature	14.4 C (57.9 F)	24 of 100 (Routine)
Columbus 4 ESE	United States	Record low maximum temperature	23.9 C (75.0 F)	24 of 100 (Routine)
Kingfisher	United States	Record low minimum temperature	4.4 C (39.9 F)	24 of 100 (Routine)
Waynesboro	United States	Record low minimum temperature	0.6 C (33.1 F)	24 of 100 (Routine)
Kamloops	Canada	Record high maximum temperature	32.8 C (91.0 F)	23 of 100 (Routine)
Minnedosa	Canada	Record low minimum temperature	-3.9 C (25.0 F)	23 of 100 (Routine)
Molteno (Mun)	South Africa	Record daily precipitation	25.9 mm (1.0 in)	23 of 100 (Routine)
Stuttgart	United States	Record low minimum temperature	5.0 C (41.0 F)	23 of 100 (Routine)
Cheboygan	United States	Record low maximum temperature	13.3 C (55.9 F)	23 of 100 (Routine)
Duck Hill	United States	Record low maximum temperature	23.3 C (73.9 F)	23 of 100 (Routine)
University	United States	Record low maximum temperature	21.7 C (71.1 F)	23 of 100 (Routine)
Appleton City	United States	Record low minimum temperature	3.9 C (39.0 F)	23 of 100 (Routine)
Missoula 6 NW WFO	United States	Record high minimum temperature	12.2 C (54.0 F)	23 of 100 (Routine)
Beatrice	United States	Record low minimum temperature	2.2 C (36.0 F)	23 of 100 (Routine)
Genoa 2 W	United States	Record low minimum temperature	1.1 C (34.0 F)	23 of 100 (Routine)
Johnsonville	United States	Record low minimum temperature	3.3 C (37.9 F)	23 of 100 (Routine)
Texarkana Webb Fld	United States	Record low maximum temperature	25.6 C (78.1 F)	23 of 100 (Routine)
McAlester Rgnl AP	United States	Record low minimum temperature	5.6 C (42.1 F)	23 of 100 (Routine)
Tartu	Estonia	Record daily precipitation	27.7 mm (1.1 in)	22 of 100 (Routine)
Mayuram	India	Record daily precipitation	41.1 mm (1.6 in)	22 of 100 (Routine)
Port Blair	India	Record daily precipitation	112.0 mm (4.4 in)	22 of 100 (Routine)
Brinkley	United States	Record low minimum temperature	5.6 C (42.1 F)	22 of 100 (Routine)
Ozark	United States	Record low minimum temperature	5.6 C (42.1 F)	22 of 100 (Routine)
Trinidad	United States	Record daily precipitation	48.0 mm (1.9 in)	22 of 100 (Routine)

Counts by Type and Timescale

891 records

Records set or tied on 11 September 1940 by type: Highest daily maximum 62, Lowest daily maximum 338, Highest daily minimum 75, Lowest daily minimum 329, Heaviest daily rainfall 86, Deepest snow cover 1.

Records on 11 September 1940 by type
Record type	Records
Highest daily maximum	62
Lowest daily maximum	338
Highest daily minimum	75
Lowest daily minimum	329
Heaviest daily rainfall	86
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 11 September 1940 by timescale: all-time 0, monthly 9, daily 882.

How Much Records Were Beaten By

722 broken records

Margins by which the 722 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 46.6. Ties are not counted.

Top 20 by Significance

11 September 1940

Top 20 records on 11 September 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 September 1940	Munchen-Nymphenburg, DE	daily rain	72.6 mm (2.9 in)	46.6 mm (1.8 in)	40 years	58 of 100 (Notable)
11 September 1940	Mysore, IN	monthly rain	129.3 mm (5.1 in)	35.1 mm (1.4 in)	24 years	48 of 100 (Notable)
11 September 1940	Hanover (Pol), ZA	daily rain	25.4 mm (1.0 in)	22.9 mm (0.9 in)	54 years	48 of 100 (Notable)
11 September 1940	Richmond C/K (Tnk), ZA	daily rain	29.0 mm (1.1 in)	23.9 mm (0.9 in)	54 years	47 of 100 (Notable)
11 September 1940	Fraserburg, ZA	monthly rain	27.9 mm (1.1 in)	5.5 mm (0.22 in)	60 years	45 of 100 (Notable)
11 September 1940	Kareekloof, ZA	daily rain	26.7 mm (1.1 in)	26.7 mm (1.1 in)	40 years	42 of 100 (Notable)
11 September 1940	Colesberg (Tnk), ZA	daily rain	27.9 mm (1.1 in)	25.1 mm (1.0 in)	56 years	41 of 100 (Notable)
11 September 1940	Mudukulathur, IN	daily rain	39.1 mm (1.5 in)	36.6 mm (1.4 in)	37 years	39 of 100 (Notable)
11 September 1940	Vosburg, ZA	daily rain	31.8 mm (1.3 in)	31.8 mm (1.3 in)	37 years	37 of 100 (Notable)
11 September 1940	De Aar, ZA	daily rain	28.2 mm (1.1 in)	27.4 mm (1.1 in)	35 years	36 of 100 (Notable)
11 September 1940	Szeged, HU	monthly rain	44.9 mm (1.8 in)	7.9 mm (0.31 in)	33 years	35 of 100 (Notable)
11 September 1940	Dhulia, IN	daily rain	76.2 mm (3.0 in)	46.2 mm (1.8 in)	26 years	35 of 100 (Notable)
11 September 1940	Kamalapuram, IN	daily rain	58.4 mm (2.3 in)	40.6 mm (1.6 in)	21 years	32 of 100 (Routine)
11 September 1940	Sattur, IN	daily rain	28.7 mm (1.1 in)	22.3 mm (0.9 in)	30 years	31 of 100 (Routine)
11 September 1940	Esperanza, ZA	daily rain	26.9 mm (1.1 in)	26.1 mm (1.0 in)	24 years	31 of 100 (Routine)
11 September 1940	Arcadia, US	daily low max	25.0 C (77.0 F)	3.3 C (5.9 F)	30 years	31 of 100 (Routine)
11 September 1940	Lincoln UNIV Pwr Plt, US	daily low min	-1.7 C (28.9 F)	7.3 C (13.1 F)	43 years	31 of 100 (Routine)
11 September 1940	Sivakasi, IN	daily rain	64.3 mm (2.5 in)	27.5 mm (1.1 in)	28 years	30 of 100 (Routine)
11 September 1940	Goderich, CA	daily low max	13.9 C (57.0 F)	1.7 C (3.1 F)	64 years	29 of 100 (Routine)
11 September 1940	Pecs Pogany, HU	daily rain	30.8 mm (1.2 in)	9.9 mm (0.39 in)	34 years	28 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 1940

Records set or tied on this calendar date in each year from 1809 to 1940. 1940 had 891 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 1940-09-11: 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).

Histogram of margins by which records were beaten on 11 September 1940
Margin	Records
0 to 10	686
10 to 20	17
20 to 30	12
30 to 40	4
40 to 50	3