Weather Records on 11 September 1939

561 weather records were set or tied worldwide on 11 September 1939. Highest significance: Vestervig, DK.

Key Facts for 11 September 1939

On 11 September 1939, 561 weather records were set or tied at long-record stations worldwide.
196 were record highs and 48 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 10 monthly and 551 daily.
Vestervig set a daily record precipitation of 43.3 mm (1.7 in) on 11 September 1939.
Across 164 earlier years (1809 to 2026) the same calendar date averaged 423 records.

Record Map

561 stations

561 station records on 11 September 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 September 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Vestervig	Denmark	Record daily precipitation	43.3 mm (1.7 in)	59 of 100 (Notable)
Wetaskiwin	Canada	Record daily precipitation	33.0 mm (1.3 in)	51 of 100 (Notable)
Merino	Australia	Record daily precipitation	32.5 mm (1.3 in)	48 of 100 (Notable)
French Island (Tankerton)	Australia	Record daily precipitation	35.1 mm (1.4 in)	47 of 100 (Notable)
Basti	India	Record daily precipitation	178.6 mm (7.0 in)	47 of 100 (Notable)
Heywood Post Office	Australia	Record daily precipitation	35.8 mm (1.4 in)	46 of 100 (Notable)
Allahabad Chailk	India	Record daily precipitation	134.6 mm (5.3 in)	46 of 100 (Notable)
Mohawk	United States	Record daily precipitation	38.1 mm (1.5 in)	46 of 100 (Notable)
Port Albert	Australia	Record daily precipitation	27.9 mm (1.1 in)	43 of 100 (Notable)
Mettupalayam	India	Record daily precipitation	66.0 mm (2.6 in)	42 of 100 (Notable)
Flinders State School	Australia	Record daily precipitation	38.4 mm (1.5 in)	41 of 100 (Notable)
Edmonton	Canada	Record daily precipitation	27.2 mm (1.1 in)	41 of 100 (Notable)
Paramathi	India	Record daily precipitation	52.6 mm (2.1 in)	41 of 100 (Notable)
Sendamangalam	India	Record daily precipitation	82.6 mm (3.3 in)	41 of 100 (Notable)
Redlands	United States	Record daily precipitation	26.2 mm (1.0 in)	41 of 100 (Notable)
Sion	Canada	Record daily precipitation	25.4 mm (1.0 in)	40 of 100 (Notable)
Boolarra	Australia	Record daily precipitation	34.0 mm (1.3 in)	39 of 100 (Notable)
Gundlupet	India	Record daily precipitation	70.1 mm (2.8 in)	39 of 100 (Notable)
Salem	India	Record daily precipitation	72.6 mm (2.9 in)	39 of 100 (Notable)
Kopati(Kaupati)	India	Record daily precipitation	120.7 mm (4.8 in)	38 of 100 (Notable)
Perundurai	India	Record daily precipitation	104.1 mm (4.1 in)	38 of 100 (Notable)
Kodanand	India	Record daily precipitation	74.9 mm (2.9 in)	37 of 100 (Notable)
Budgeree East (Claremont)	Australia	Record daily precipitation	35.6 mm (1.4 in)	36 of 100 (Notable)
Yinnar	Australia	Record daily precipitation	32.5 mm (1.3 in)	36 of 100 (Notable)
Sagar Island	India	Record daily precipitation	130.0 mm (5.1 in)	36 of 100 (Notable)
Derrinallum (Craigmore)	Australia	Record daily precipitation	25.1 mm (1.0 in)	35 of 100 (Notable)
Omalur	India	Record daily precipitation	78.0 mm (3.1 in)	35 of 100 (Notable)
Waupaca	United States	Record daily precipitation	58.9 mm (2.3 in)	35 of 100 (Notable)
Kohala Mis 175.1	United States	Record low maximum temperature	21.1 C (70.0 F)	35 of 100 (Notable)
Beech Forest	Australia	Record daily precipitation	44.2 mm (1.7 in)	34 of 100 (Routine)
Serampore	India	Record daily precipitation	78.0 mm (3.1 in)	34 of 100 (Routine)
Alberton Post Office	Australia	Record daily precipitation	26.7 mm (1.1 in)	33 of 100 (Routine)
Bilari	India	Record daily precipitation	76.2 mm (3.0 in)	32 of 100 (Routine)
Drouin Bowling Club	Australia	Record daily precipitation	36.3 mm (1.4 in)	31 of 100 (Routine)
Cavendish (Post Office)	Australia	Record daily precipitation	26.2 mm (1.0 in)	31 of 100 (Routine)
Korumburra	Australia	Record daily precipitation	31.8 mm (1.3 in)	30 of 100 (Routine)
Narracan State School	Australia	Record daily precipitation	27.2 mm (1.1 in)	30 of 100 (Routine)
Hastings Post Office	Australia	Record daily precipitation	32.3 mm (1.3 in)	30 of 100 (Routine)
Apollo Bay	Australia	Record daily precipitation	31.5 mm (1.2 in)	30 of 100 (Routine)
Foster (Post Office)	Australia	Record daily precipitation	29.2 mm (1.1 in)	29 of 100 (Routine)
Warragul	Australia	Record daily precipitation	35.6 mm (1.4 in)	29 of 100 (Routine)
Manapparai	India	Record daily precipitation	89.9 mm (3.5 in)	29 of 100 (Routine)
Raipur	India	Record daily precipitation	127.0 mm (5.0 in)	29 of 100 (Routine)
Etah	India	Record daily precipitation	67.3 mm (2.6 in)	29 of 100 (Routine)
Pasadena	United States	Record high minimum temperature	22.2 C (72.0 F)	29 of 100 (Routine)
Wilsons Promontory Lighthouse	Australia	Record daily precipitation	37.6 mm (1.5 in)	28 of 100 (Routine)
Eau Claire	United States	Record daily precipitation	101.6 mm (4.0 in)	28 of 100 (Routine)
Koo Wee Rup	Australia	Record daily precipitation	26.4 mm (1.0 in)	27 of 100 (Routine)
Melbourne Regional Office	Australia	Record low maximum temperature	10.3 C (50.5 F)	27 of 100 (Routine)
Hardoi	India	Record daily precipitation	57.2 mm (2.3 in)	27 of 100 (Routine)
Contai	India	Record daily precipitation	91.7 mm (3.6 in)	27 of 100 (Routine)
Jindivick	Australia	Record daily precipitation	39.1 mm (1.5 in)	26 of 100 (Routine)
Mount Best (Upper Toora)	Australia	Record daily precipitation	34.0 mm (1.3 in)	26 of 100 (Routine)
Mornington	Australia	Record daily precipitation	28.7 mm (1.1 in)	26 of 100 (Routine)
Somerville	Australia	Record daily precipitation	29.0 mm (1.1 in)	26 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record low maximum temperature	8.9 C (48.0 F)	26 of 100 (Routine)
Forrest State Forest	Australia	Record daily precipitation	25.4 mm (1.0 in)	26 of 100 (Routine)
Gannavaram	India	Record daily precipitation	38.1 mm (1.5 in)	26 of 100 (Routine)
Kodumudi	India	Record daily precipitation	41.9 mm (1.6 in)	26 of 100 (Routine)
Oksoey Fyr	Norway	Record daily precipitation	48.6 mm (1.9 in)	26 of 100 (Routine)

Counts by Type and Timescale

561 records

Records set or tied on 11 September 1939 by type: Highest daily maximum 105, Lowest daily maximum 29, Highest daily minimum 91, Lowest daily minimum 19, Heaviest daily rainfall 317.

Records on 11 September 1939 by type
Record type	Records
Highest daily maximum	105
Lowest daily maximum	29
Highest daily minimum	91
Lowest daily minimum	19
Heaviest daily rainfall	317
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 11 September 1939 by timescale: all-time 0, monthly 10, daily 551.

How Much Records Were Beaten By

486 broken records

Margins by which the 486 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 134.9. Ties are not counted.

Top 20 by Significance

11 September 1939

Top 20 records on 11 September 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 September 1939	Vestervig, DK	daily rain	43.3 mm (1.7 in)	32.1 mm (1.3 in)	43 years	59 of 100 (Notable)
11 September 1939	Wetaskiwin, CA	daily rain	33.0 mm (1.3 in)	29.2 mm (1.1 in)	32 years	51 of 100 (Notable)
11 September 1939	Merino, AU	daily rain	32.5 mm (1.3 in)	21.8 mm (0.9 in)	24 years	48 of 100 (Notable)
11 September 1939	French Island (Tankerton), AU	daily rain	35.1 mm (1.4 in)	19.1 mm (0.8 in)	28 years	47 of 100 (Notable)
11 September 1939	Basti, IN	daily rain	178.6 mm (7.0 in)	134.9 mm (5.3 in)	24 years	47 of 100 (Notable)
11 September 1939	Heywood Post Office, AU	daily rain	35.8 mm (1.4 in)	26.7 mm (1.1 in)	5 years	46 of 100 (Notable)
11 September 1939	Allahabad Chailk, IN	daily rain	134.6 mm (5.3 in)	106.9 mm (4.2 in)	12 years	46 of 100 (Notable)
11 September 1939	Mohawk, US	daily rain	38.1 mm (1.5 in)	33.0 mm (1.3 in)	16 years	46 of 100 (Notable)
11 September 1939	Port Albert, AU	daily rain	27.9 mm (1.1 in)	14.9 mm (0.6 in)	36 years	43 of 100 (Notable)
11 September 1939	Mettupalayam, IN	daily rain	66.0 mm (2.6 in)	45.2 mm (1.8 in)	26 years	42 of 100 (Notable)
11 September 1939	Flinders State School, AU	daily rain	38.4 mm (1.5 in)	13.5 mm (0.5 in)	36 years	41 of 100 (Notable)
11 September 1939	Edmonton, CA	daily rain	27.2 mm (1.1 in)	18.8 mm (0.7 in)	8 years	41 of 100 (Notable)
11 September 1939	Paramathi, IN	daily rain	52.6 mm (2.1 in)	43.7 mm (1.7 in)	36 years	41 of 100 (Notable)
11 September 1939	Sendamangalam, IN	daily rain	82.6 mm (3.3 in)	54.7 mm (2.2 in)	36 years	41 of 100 (Notable)
11 September 1939	Redlands, US	daily rain	26.2 mm (1.0 in)	24.7 mm (1.0 in)	16 years	41 of 100 (Notable)
11 September 1939	Sion, CA	daily rain	25.4 mm (1.0 in)	17.8 mm (0.7 in)	24 years	40 of 100 (Notable)
11 September 1939	Boolarra, AU	daily rain	34.0 mm (1.3 in)	18.3 mm (0.7 in)	28 years	39 of 100 (Notable)
11 September 1939	Gundlupet, IN	daily rain	70.1 mm (2.8 in)	39.6 mm (1.6 in)	26 years	39 of 100 (Notable)
11 September 1939	Salem, IN	daily rain	72.6 mm (2.9 in)	39.1 mm (1.5 in)	33 years	39 of 100 (Notable)
11 September 1939	Kopati(Kaupati), IN	monthly rain	120.7 mm (4.8 in)	21.6 mm (0.9 in)	37 years	38 of 100 (Notable)

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 1939

Records set or tied on this calendar date in each year from 1809 to 1939. 1939 had 561 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 1939-09-11: 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 20	442
20 to 40	29
40 to 60	11
60 to 80	2
80 to 100	0
100 to 120	1
120 to 140	1