Weather Records on 23 September 1931

600 weather records were set or tied worldwide on 23 September 1931. Highest significance: Nandikottur, IN.

Key Facts for 23 September 1931

On 23 September 1931, 600 weather records were set or tied at long-record stations worldwide.
358 were record highs and 105 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 28 monthly and 571 daily.
Nandikottur set a daily record precipitation of 99.6 mm (3.9 in) on 23 September 1931.
Across 169 earlier years (1793 to 2026) the same calendar date averaged 430 records.

Record Map

600 stations

600 station records on 23 September 1931 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 23 September 1931: highest significance records shown on the map
Station	Country	Type	Value	Significance
Nandikottur	India	Record daily precipitation	99.6 mm (3.9 in)	50 of 100 (Notable)
Uman	Ukraine	Record daily precipitation	56.6 mm (2.2 in)	47 of 100 (Notable)
Navapur	India	Record daily precipitation	130.6 mm (5.1 in)	46 of 100 (Notable)
Igatpuri	India	Record daily precipitation	127.5 mm (5.0 in)	46 of 100 (Notable)
Atmakur	India	Record daily precipitation	218.2 mm (8.6 in)	44 of 100 (Notable)
Lonavala	India	Record daily precipitation	203.5 mm (8.0 in)	44 of 100 (Notable)
Praha-Klementinum	Czech Republic	Record low maximum temperature	8.7 C (47.7 F)	42 of 100 (Notable)
Warsaw 1	United States	Record daily precipitation	72.4 mm (2.9 in)	42 of 100 (Notable)
Toronto	Canada	Record daily precipitation	29.2 mm (1.1 in)	40 of 100 (Notable)
Barpeta	India	Record daily precipitation	105.4 mm (4.1 in)	39 of 100 (Notable)
Karjat	India	Record daily precipitation	137.2 mm (5.4 in)	35 of 100 (Notable)
Mirzapur	India	Record daily precipitation	94.0 mm (3.7 in)	35 of 100 (Notable)
Hutchinson River	United States	Record daily precipitation	38.1 mm (1.5 in)	33 of 100 (Routine)
Appleton City	United States	Record daily precipitation	46.0 mm (1.8 in)	33 of 100 (Routine)
Gorin	United States	Record daily precipitation	58.2 mm (2.3 in)	33 of 100 (Routine)
Uppsala_Aut	Sweden	Record low minimum temperature	-2.9 C (26.8 F)	32 of 100 (Routine)
Karlsruhe	Germany	Record low maximum temperature	9.0 C (48.2 F)	30 of 100 (Routine)
Rajpipla(Nandod)	India	Record daily precipitation	60.5 mm (2.4 in)	30 of 100 (Routine)
Auraiya	India	Record daily precipitation	56.1 mm (2.2 in)	30 of 100 (Routine)
Maharajganj	India	Record daily precipitation	74.7 mm (2.9 in)	30 of 100 (Routine)
Hohenpeissenberg	Germany	Record low maximum temperature	1.4 C (34.5 F)	29 of 100 (Routine)
Paarl (Tnk)	South Africa	Record daily precipitation	36.1 mm (1.4 in)	29 of 100 (Routine)
Nikolaev	Ukraine	Record daily precipitation	32.0 mm (1.3 in)	29 of 100 (Routine)
Hanamkonda	India	Record daily precipitation	108.0 mm (4.3 in)	28 of 100 (Routine)
Ratlam	India	Record daily precipitation	57.2 mm (2.3 in)	28 of 100 (Routine)
Saentis	Switzerland	Record low minimum temperature	-12.4 C (9.7 F)	28 of 100 (Routine)
W Lafayette 6 NW	United States	Record daily precipitation	33.3 mm (1.3 in)	28 of 100 (Routine)
Fichtelberg	Germany	Record snow depth	16.0 cm (6.3 in)	27 of 100 (Routine)
Harrisonville	United States	Record daily precipitation	50.8 mm (2.0 in)	27 of 100 (Routine)
Digri	India	Record daily precipitation	91.7 mm (3.6 in)	26 of 100 (Routine)
Elko Rgnl AP	United States	Record low maximum temperature	6.7 C (44.1 F)	26 of 100 (Routine)
Tiruvur(Tiruvvru)	India	Record daily precipitation	68.6 mm (2.7 in)	25 of 100 (Routine)
Alirajpur/Rajpur	India	Record daily precipitation	53.3 mm (2.1 in)	25 of 100 (Routine)
Salzburg	Austria	Record low maximum temperature	4.7 C (40.5 F)	24 of 100 (Routine)
Linkoeping-Malmslaett	Sweden	Record low minimum temperature	-2.2 C (28.0 F)	24 of 100 (Routine)
Saentis	Switzerland	Record low maximum temperature	-8.1 C (17.4 F)	24 of 100 (Routine)
North Lake	United States	Record high minimum temperature	18.9 C (66.0 F)	24 of 100 (Routine)
Fichtelberg	Germany	Record low minimum temperature	-4.2 C (24.4 F)	23 of 100 (Routine)
Plauen	Germany	Record low maximum temperature	4.9 C (40.8 F)	23 of 100 (Routine)
Hvar	Croatia	Record low minimum temperature	9.0 C (48.2 F)	23 of 100 (Routine)
Avon Park 2 W	United States	Record daily precipitation	45.7 mm (1.8 in)	23 of 100 (Routine)
Chugwater	United States	Record low maximum temperature	10.6 C (51.1 F)	23 of 100 (Routine)
Martinsburg E W Virginia Rgnl	United States	Record high maximum temperature	38.3 C (100.9 F)	23 of 100 (Routine)
Bhiwandi	India	Record daily precipitation	78.2 mm (3.1 in)	22 of 100 (Routine)
Visby_Flygplats	Sweden	Record low maximum temperature	8.0 C (46.4 F)	22 of 100 (Routine)
Karlshamn	Sweden	Record low maximum temperature	11.0 C (51.8 F)	22 of 100 (Routine)
Zuerich/Fluntern	Switzerland	Record low maximum temperature	6.9 C (44.4 F)	22 of 100 (Routine)
Flora 5 NW	United States	Record daily precipitation	26.2 mm (1.0 in)	22 of 100 (Routine)
Kimball 2NE	United States	Record low maximum temperature	10.6 C (51.1 F)	22 of 100 (Routine)
Hillsboro	United States	Record daily precipitation	72.4 mm (2.9 in)	22 of 100 (Routine)
Brocken	Germany	Record low maximum temperature	-0.5 C (31.1 F)	21 of 100 (Routine)
Reit Im Winkl	Germany	Record snow depth	10.0 cm (3.9 in)	21 of 100 (Routine)
Hatta	India	Record daily precipitation	77.5 mm (3.1 in)	21 of 100 (Routine)
Hillsboro	United States	Record daily precipitation	29.7 mm (1.2 in)	21 of 100 (Routine)
Austin	United States	Record high maximum temperature	38.9 C (102.0 F)	21 of 100 (Routine)
Cheraw	United States	Record high maximum temperature	37.8 C (100.0 F)	21 of 100 (Routine)
Clemson UNIV	United States	Record high maximum temperature	36.7 C (98.1 F)	21 of 100 (Routine)
Grand Junction Walker Fld	United States	Record daily precipitation	20.1 mm (0.8 in)	20 of 100 (Routine)
Cape Town Fire Station	South Africa	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Clover Valley	United States	Record daily precipitation	20.1 mm (0.8 in)	20 of 100 (Routine)

Counts by Type and Timescale

600 records

Records set or tied on 23 September 1931 by type: Highest daily maximum 172, Lowest daily maximum 65, Highest daily minimum 186, Lowest daily minimum 40, Heaviest daily rainfall 134, Deepest snow cover 3.

Records on 23 September 1931 by type
Record type	Records
Highest daily maximum	172
Lowest daily maximum	65
Highest daily minimum	186
Lowest daily minimum	40
Heaviest daily rainfall	134
Heaviest daily snowfall	0
Deepest snow cover	3

Records on 23 September 1931 by timescale: all-time 1, monthly 28, daily 571.

How Much Records Were Beaten By

508 broken records

Margins by which the 508 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 150.9. Ties are not counted.

Top 20 by Significance

23 September 1931

Top 20 records on 23 September 1931 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 September 1931	Nandikottur, IN	daily rain	99.6 mm (3.9 in)	78.0 mm (3.1 in)	24 years	50 of 100 (Notable)
23 September 1931	Uman, UA	daily rain	56.6 mm (2.2 in)	45.4 mm (1.8 in)	12 years	47 of 100 (Notable)
23 September 1931	Navapur, IN	daily rain	130.6 mm (5.1 in)	102.2 mm (4.0 in)	12 years	46 of 100 (Notable)
23 September 1931	Igatpuri, IN	daily rain	127.5 mm (5.0 in)	100.8 mm (4.0 in)	10 years	46 of 100 (Notable)
23 September 1931	Atmakur, IN	all-time rain	218.2 mm (8.6 in)	42.2 mm (1.7 in)	2 years	44 of 100 (Notable)
23 September 1931	Lonavala, IN	daily rain	203.5 mm (8.0 in)	150.9 mm (5.9 in)	4 years	44 of 100 (Notable)
23 September 1931	Praha-Klementinum, CZ	daily low max	8.7 C (47.7 F)	2.8 C (5.0 F)	88 years	42 of 100 (Notable)
23 September 1931	Warsaw 1, US	daily rain	72.4 mm (2.9 in)	50.8 mm (2.0 in)	37 years	42 of 100 (Notable)
23 September 1931	Toronto, CA	daily rain	29.2 mm (1.1 in)	6.8 mm (0.27 in)	85 years	40 of 100 (Notable)
23 September 1931	Barpeta, IN	daily rain	105.4 mm (4.1 in)	65.8 mm (2.6 in)	28 years	39 of 100 (Notable)
23 September 1931	Karjat, IN	daily rain	137.2 mm (5.4 in)	83.1 mm (3.3 in)	12 years	35 of 100 (Notable)
23 September 1931	Mirzapur, IN	daily rain	94.0 mm (3.7 in)	67.3 mm (2.6 in)	8 years	35 of 100 (Notable)
23 September 1931	Hutchinson River, US	daily rain	38.1 mm (1.5 in)	26.4 mm (1.0 in)	30 years	33 of 100 (Routine)
23 September 1931	Appleton City, US	daily rain	46.0 mm (1.8 in)	37.1 mm (1.5 in)	20 years	33 of 100 (Routine)
23 September 1931	Gorin, US	daily rain	58.2 mm (2.3 in)	38.6 mm (1.5 in)	28 years	33 of 100 (Routine)
23 September 1931	Uppsala_Aut, SE	daily low min	-2.9 C (26.8 F)	0.3 C (0.5 F)	76 years	32 of 100 (Routine)
23 September 1931	Karlsruhe, DE	monthly low max	9.0 C (48.2 F)	0.2 C (0.4 F)	51 years	30 of 100 (Routine)
23 September 1931	Rajpipla(Nandod), IN	daily rain	60.5 mm (2.4 in)	50.8 mm (2.0 in)	28 years	30 of 100 (Routine)
23 September 1931	Auraiya, IN	daily rain	56.1 mm (2.2 in)	46.4 mm (1.8 in)	28 years	30 of 100 (Routine)
23 September 1931	Maharajganj, IN	daily rain	74.7 mm (2.9 in)	44.5 mm (1.8 in)	28 years	30 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

1793 to 1931

Records set or tied on this calendar date in each year from 1793 to 1931. 1931 had 600 records.

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

Records on 09-23 in each year
Year	Records
1793	1
1796	1
1799	1
1804	1
1832	1
1835	1
1838	1
1842	3
1843	1
1845	2
1848	1
1849	1
1850	1
1851	2
1854	3
1855	1
1859	2
1864	1
1865	1
1866	1
1868	1
1871	1
1872	1
1874	1
1875	1
1876	1
1877	1
1881	4
1882	2
1885	1
1886	1
1887	1
1888	1
1889	3
1890	2
1891	1
1892	2
1893	4
1895	9
1896	5
1897	1
1898	2
1899	4
1900	4
1901	2
1902	6
1903	7
1904	19
1905	6
1906	6
1907	19
1908	19
1909	15
1910	8
1911	11
1912	15
1913	22
1914	29
1915	25
1916	324
1917	56
1918	34
1919	40
1920	44
1921	47
1922	34
1923	74
1924	194
1925	223
1926	459
1927	247
1928	382
1929	198
1930	472
1931	600
1932	383
1933	281
1934	361
1935	239
1936	377
1937	557
1938	389
1939	279
1940	374
1941	490
1942	557
1943	322
1944	381
1945	652
1946	623
1947	803
1948	259
1949	496
1950	267
1951	462
1952	432
1953	271
1954	324
1955	852
1956	299
1957	539
1958	641
1959	307
1960	470
1961	670
1962	344
1963	568
1964	322
1965	783
1966	528
1967	341
1968	481
1969	450
1970	1,457
1971	578
1972	461
1973	674
1974	1,543
1975	1,038
1976	463
1977	616
1978	500
1979	586
1980	1,037
1981	717
1982	775
1983	1,744
1984	1,121
1985	924
1986	740
1987	1,077
1988	653
1989	1,376
1990	702
1991	519
1992	976
1993	983
1994	1,140
1995	1,868
1996	809
1997	1,060
1998	1,326
1999	1,207
2000	2,026
2001	790
2002	930
2003	1,243
2004	986
2005	1,207
2006	1,509
2007	1,153
2008	835
2009	1,201
2010	1,360
2011	666
2012	785
2013	573
2014	595
2015	587
2016	774
2017	1,371
2018	693
2019	565
2020	618
2021	602
2022	551
2023	812
2024	499
2025	449
2026	384

Download the Data

Data for records on 1931-09-23: 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	466
20 to 40	22
40 to 60	10
60 to 80	5
80 to 100	2
100 to 120	2
120 to 140	0
140 to 160	1