Weather Records on 6 September 1939

447 weather records were set or tied worldwide on 6 September 1939. Highest significance: Needles, US.

Key Facts for 6 September 1939

On 6 September 1939, 447 weather records were set or tied at long-record stations worldwide.
294 were record highs and 67 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 71 monthly and 375 daily.
Needles set a monthly record daily precipitation of 74.7 mm (2.9 in) on 6 September 1939.
Across 164 earlier years (1794 to 2026) the same calendar date averaged 451 records.

Record Map

447 stations

447 station records on 6 September 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 6 September 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Needles	United States	Record daily precipitation	74.7 mm (2.9 in)	59 of 100 (Notable)
Cuyamaca	United States	Record daily precipitation	65.0 mm (2.6 in)	52 of 100 (Notable)
Las Vegas	United States	Record daily precipitation	27.4 mm (1.1 in)	49 of 100 (Notable)
Parker	United States	Record daily precipitation	42.2 mm (1.7 in)	47 of 100 (Notable)
Angul	India	Record daily precipitation	148.8 mm (5.9 in)	46 of 100 (Notable)
Paragonah	United States	Record daily precipitation	36.3 mm (1.4 in)	44 of 100 (Notable)
Athmalik	India	Record daily precipitation	149.1 mm (5.9 in)	43 of 100 (Notable)
Palampur	India	Record daily precipitation	139.7 mm (5.5 in)	38 of 100 (Notable)
Escalante	United States	Record daily precipitation	33.5 mm (1.3 in)	36 of 100 (Notable)
Salome 6 SE	United States	Record daily precipitation	44.5 mm (1.8 in)	34 of 100 (Routine)
Indio Fire STN	United States	Record low maximum temperature	26.7 C (80.1 F)	32 of 100 (Routine)
Warner Springs	United States	Record daily precipitation	29.7 mm (1.2 in)	32 of 100 (Routine)
Dhenkanal	India	Record daily precipitation	111.8 mm (4.4 in)	31 of 100 (Routine)
Kingman	United States	Record daily precipitation	68.6 mm (2.7 in)	31 of 100 (Routine)
Hindol	India	Record daily precipitation	74.2 mm (2.9 in)	30 of 100 (Routine)
Yuma Wb City	United States	Record low maximum temperature	27.8 C (82.0 F)	30 of 100 (Routine)
Hamirpur	India	Record daily precipitation	78.7 mm (3.1 in)	29 of 100 (Routine)
Mohawk	United States	Record low maximum temperature	30.0 C (86.0 F)	29 of 100 (Routine)
Prescott	United States	Record daily precipitation	27.2 mm (1.1 in)	29 of 100 (Routine)
Koloa 936	United States	Record low minimum temperature	17.2 C (63.0 F)	29 of 100 (Routine)
Dharmsala Lower	India	Record daily precipitation	203.2 mm (8.0 in)	28 of 100 (Routine)
Cuttack	India	Record daily precipitation	89.7 mm (3.5 in)	28 of 100 (Routine)
Gangapur	India	Record daily precipitation	59.9 mm (2.4 in)	28 of 100 (Routine)
Grand Canyon HQ	United States	Record daily precipitation	31.8 mm (1.3 in)	28 of 100 (Routine)
Salome 6 SE	United States	Record low maximum temperature	25.6 C (78.1 F)	28 of 100 (Routine)
El Cajon 2 E	United States	Record daily precipitation	28.4 mm (1.1 in)	28 of 100 (Routine)
Oakland	United States	Record low minimum temperature	8.9 C (48.0 F)	27 of 100 (Routine)
Las Animas	United States	Record high maximum temperature	40.0 C (104.0 F)	27 of 100 (Routine)
Madison	United States	Record high maximum temperature	40.0 C (104.0 F)	27 of 100 (Routine)
Paragonah	United States	Record low maximum temperature	16.7 C (62.1 F)	27 of 100 (Routine)
Umea	Sweden	Record high minimum temperature	12.0 C (53.6 F)	26 of 100 (Routine)
Parker	United States	Record low maximum temperature	25.6 C (78.1 F)	26 of 100 (Routine)
Williams	United States	Record low maximum temperature	16.7 C (62.1 F)	26 of 100 (Routine)
Onawa 3NW	United States	Record high maximum temperature	40.0 C (104.0 F)	26 of 100 (Routine)
Fillmore	United States	Record low maximum temperature	18.3 C (64.9 F)	26 of 100 (Routine)
Cuttack	India	Record daily precipitation	124.0 mm (4.9 in)	24 of 100 (Routine)
Norton 9SSE	United States	Record high minimum temperature	24.4 C (75.9 F)	24 of 100 (Routine)
Oregon	United States	Record high minimum temperature	27.8 C (82.0 F)	24 of 100 (Routine)
Loa	United States	Record low maximum temperature	13.9 C (57.0 F)	24 of 100 (Routine)
Williams	United States	Record daily precipitation	39.1 mm (1.5 in)	23 of 100 (Routine)
Ft Dodge 5NNW	United States	Record high maximum temperature	39.4 C (102.9 F)	23 of 100 (Routine)
David City 4E	United States	Record high minimum temperature	27.2 C (81.0 F)	23 of 100 (Routine)
Hebron	United States	Record high minimum temperature	28.9 C (84.0 F)	23 of 100 (Routine)
Keolari	India	Record daily precipitation	89.4 mm (3.5 in)	22 of 100 (Routine)
Escondido	United States	Record high minimum temperature	18.3 C (64.9 F)	22 of 100 (Routine)
Little Sioux	United States	Record high maximum temperature	41.1 C (106.0 F)	22 of 100 (Routine)
Concordia ASOS	United States	Record high minimum temperature	27.2 C (81.0 F)	22 of 100 (Routine)
Kangra	India	Record daily precipitation	64.5 mm (2.5 in)	21 of 100 (Routine)
Mainpuri	India	Record daily precipitation	32.0 mm (1.3 in)	21 of 100 (Routine)
Riverside Fire STN 3	United States	Record high minimum temperature	19.4 C (66.9 F)	21 of 100 (Routine)
Harlan	United States	Record high maximum temperature	39.4 C (102.9 F)	21 of 100 (Routine)
Waukee	United States	Record high maximum temperature	38.3 C (100.9 F)	21 of 100 (Routine)
Seward	United States	Record high maximum temperature	40.6 C (105.1 F)	21 of 100 (Routine)
Beaver	United States	Record low maximum temperature	15.6 C (60.1 F)	21 of 100 (Routine)
Escalante	United States	Record low maximum temperature	14.4 C (57.9 F)	21 of 100 (Routine)
San Diego Wbo	United States	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Mohawk	United States	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Scipio	United States	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Grand Junction Walker Fld	United States	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Seligman	United States	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)

Counts by Type and Timescale

447 records

Records set or tied on 6 September 1939 by type: Highest daily maximum 143, Lowest daily maximum 42, Highest daily minimum 151, Lowest daily minimum 25, Heaviest daily rainfall 86.

Records on 6 September 1939 by type
Record type	Records
Highest daily maximum	143
Lowest daily maximum	42
Highest daily minimum	151
Lowest daily minimum	25
Heaviest daily rainfall	86
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 6 September 1939 by timescale: all-time 1, monthly 71, daily 375.

How Much Records Were Beaten By

325 broken records

Margins by which the 325 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 90.2. Ties are not counted.

Top 20 by Significance

6 September 1939

Top 20 records on 6 September 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 September 1939	Needles, US	monthly rain	74.7 mm (2.9 in)	31.5 mm (1.2 in)	17 years	59 of 100 (Notable)
6 September 1939	Cuyamaca, US	daily rain	65.0 mm (2.6 in)	63.2 mm (2.5 in)	30 years	52 of 100 (Notable)
6 September 1939	Las Vegas, US	daily rain	27.4 mm (1.1 in)	27.4 mm (1.1 in)	43 years	49 of 100 (Notable)
6 September 1939	Parker, US	daily rain	42.2 mm (1.7 in)	41.2 mm (1.6 in)	12 years	47 of 100 (Notable)
6 September 1939	Angul, IN	monthly rain	148.8 mm (5.9 in)	46.9 mm (1.8 in)	5 years	46 of 100 (Notable)
6 September 1939	Paragonah, US	daily rain	36.3 mm (1.4 in)	33.3 mm (1.3 in)	25 years	44 of 100 (Notable)
6 September 1939	Athmalik, IN	daily rain	149.1 mm (5.9 in)	90.2 mm (3.6 in)	1 year	43 of 100 (Notable)
6 September 1939	Palampur, IN	daily rain	139.7 mm (5.5 in)	81.5 mm (3.2 in)	8 years	38 of 100 (Notable)
6 September 1939	Escalante, US	daily rain	33.5 mm (1.3 in)	28.2 mm (1.1 in)	29 years	36 of 100 (Notable)
6 September 1939	Salome 6 SE, US	monthly rain	44.5 mm (1.8 in)	10.7 mm (0.4 in)	24 years	34 of 100 (Routine)
6 September 1939	Indio Fire STN, US	daily low max	26.7 C (80.1 F)	7.2 C (13.0 F)	26 years	32 of 100 (Routine)
6 September 1939	Warner Springs, US	daily rain	29.7 mm (1.2 in)	18.8 mm (0.7 in)	30 years	32 of 100 (Routine)
6 September 1939	Dhenkanal, IN	monthly rain	111.8 mm (4.4 in)	14.5 mm (0.6 in)	34 years	31 of 100 (Routine)
6 September 1939	Kingman, US	all-time rain	68.6 mm (2.7 in)	5.1 mm (0.20 in)	6 years	31 of 100 (Routine)
6 September 1939	Hindol, IN	daily rain	74.2 mm (2.9 in)	32.8 mm (1.3 in)	32 years	30 of 100 (Routine)
6 September 1939	Yuma Wb City, US	daily low max	27.8 C (82.0 F)	6.1 C (11.0 F)	29 years	30 of 100 (Routine)
6 September 1939	Hamirpur, IN	daily rain	78.7 mm (3.1 in)	36.3 mm (1.4 in)	36 years	29 of 100 (Routine)
6 September 1939	Mohawk, US	daily low max	30.0 C (86.0 F)	7.2 C (13.0 F)	9 years	29 of 100 (Routine)
6 September 1939	Prescott, US	daily rain	27.2 mm (1.1 in)	17.8 mm (0.7 in)	25 years	29 of 100 (Routine)
6 September 1939	Koloa 936, US	daily low min	17.2 C (63.0 F)	2.2 C (4.0 F)	29 years	29 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 1939

Records set or tied on this calendar date in each year from 1794 to 1939. 1939 had 447 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 1939-09-06: 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 20	304
20 to 40	16
40 to 60	2
60 to 80	1
80 to 100	2