Weather Records on 21 September 1945

507 weather records were set or tied worldwide on 21 September 1945. Highest significance: Nandura, IN.

Key Facts for 21 September 1945

On 21 September 1945, 507 weather records were set or tied at long-record stations worldwide.
103 were record highs and 157 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 4 monthly and 502 daily.
Nandura set a daily record precipitation of 157.0 mm (6.2 in) on 21 September 1945.
Across 155 earlier years (1805 to 2026) the same calendar date averaged 451 records.

Record Map

507 stations

507 station records on 21 September 1945 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 September 1945: highest significance records shown on the map
Station	Country	Type	Value	Significance
Nandura	India	Record daily precipitation	157.0 mm (6.2 in)	50 of 100 (Notable)
Warora	India	Record daily precipitation	153.7 mm (6.1 in)	50 of 100 (Notable)
Cambridge	United States	Record daily precipitation	27.4 mm (1.1 in)	49 of 100 (Notable)
Pandherikawara	India	Record daily precipitation	193.0 mm (7.6 in)	48 of 100 (Notable)
Columbia Wb City	United States	Record daily precipitation	90.7 mm (3.6 in)	46 of 100 (Notable)
Yaval	India	Record daily precipitation	180.3 mm (7.1 in)	45 of 100 (Notable)
Anjangaon	India	Record daily precipitation	93.7 mm (3.7 in)	44 of 100 (Notable)
Armori	India	Record daily precipitation	153.2 mm (6.0 in)	44 of 100 (Notable)
Asola	India	Record daily precipitation	135.6 mm (5.3 in)	44 of 100 (Notable)
Barwani	India	Record daily precipitation	78.7 mm (3.1 in)	42 of 100 (Notable)
Chimur	India	Record daily precipitation	100.3 mm (3.9 in)	41 of 100 (Notable)
Council	United States	Record daily precipitation	33.8 mm (1.3 in)	41 of 100 (Notable)
Patur	India	Record daily precipitation	78.7 mm (3.1 in)	40 of 100 (Notable)
Zanesville Wwtp	United States	Record daily precipitation	47.0 mm (1.9 in)	40 of 100 (Notable)
Ashton 1N	United States	Record daily precipitation	31.0 mm (1.2 in)	37 of 100 (Notable)
Gadhchiroli	India	Record daily precipitation	137.7 mm (5.4 in)	36 of 100 (Notable)
Irwin 2 SE	United States	Record daily precipitation	36.1 mm (1.4 in)	36 of 100 (Notable)
Mul	India	Record daily precipitation	80.3 mm (3.2 in)	35 of 100 (Notable)
Stillwater 2 W	United States	Record daily precipitation	71.4 mm (2.8 in)	34 of 100 (Routine)
Mundo Novo	Brazil	Record daily precipitation	28.0 mm (1.1 in)	33 of 100 (Routine)
Ghorajheri	India	Record daily precipitation	102.9 mm (4.1 in)	33 of 100 (Routine)
Brahmapuri	India	Record daily precipitation	88.6 mm (3.5 in)	32 of 100 (Routine)
St Louis St Louis UNIV	United States	Record daily precipitation	67.8 mm (2.7 in)	32 of 100 (Routine)
Murarrie Road Csiro	Australia	Record daily precipitation	29.0 mm (1.1 in)	31 of 100 (Routine)
Salem	United States	Record daily precipitation	38.6 mm (1.5 in)	31 of 100 (Routine)
Muenster	Canada	Record daily snowfall	7.1 cm (2.8 in)	30 of 100 (Routine)
Talegaon	India	Record daily precipitation	63.5 mm (2.5 in)	30 of 100 (Routine)
Hennessey 4 ESE	United States	Record daily precipitation	39.6 mm (1.6 in)	30 of 100 (Routine)
Chandrapur	India	Record daily precipitation	193.0 mm (7.6 in)	29 of 100 (Routine)
G. Udayagiri	India	Record daily precipitation	85.1 mm (3.4 in)	29 of 100 (Routine)
Copper	United States	Record daily snowfall	10.2 cm (4.0 in)	29 of 100 (Routine)
Perry	United States	Record daily precipitation	30.5 mm (1.2 in)	29 of 100 (Routine)
Chikhalda Sr	India	Record daily precipitation	104.1 mm (4.1 in)	28 of 100 (Routine)
Mayaguez City	Puerto Rico [United States]	Record daily precipitation	79.2 mm (3.1 in)	28 of 100 (Routine)
Warrenton 1 N	United States	Record daily precipitation	76.7 mm (3.0 in)	28 of 100 (Routine)
Claresholm Meadow Creek	Canada	Record daily snowfall	7.6 cm (3.0 in)	27 of 100 (Routine)
High River	Canada	Record daily snowfall	5.8 cm (2.3 in)	27 of 100 (Routine)
Kaithal	India	Record daily precipitation	40.6 mm (1.6 in)	27 of 100 (Routine)
Makrai	India	Record daily precipitation	88.9 mm (3.5 in)	27 of 100 (Routine)
Telhara	India	Record daily precipitation	60.2 mm (2.4 in)	27 of 100 (Routine)
Dharni	India	Record daily precipitation	66.8 mm (2.6 in)	27 of 100 (Routine)
Hinganghat	India	Record daily precipitation	97.3 mm (3.8 in)	27 of 100 (Routine)
Holly Bluff	United States	Record daily precipitation	27.2 mm (1.1 in)	27 of 100 (Routine)
Tecumseh 1S	United States	Record daily precipitation	53.6 mm (2.1 in)	27 of 100 (Routine)
Wynnum Railway Station	Australia	Record daily precipitation	37.8 mm (1.5 in)	26 of 100 (Routine)
Southport	Australia	Record daily precipitation	33.0 mm (1.3 in)	26 of 100 (Routine)
Srinagar	India	Record daily precipitation	38.1 mm (1.5 in)	26 of 100 (Routine)
Jackson	United States	Record daily precipitation	120.7 mm (4.8 in)	26 of 100 (Routine)
Lyndon	Canada	Record daily snowfall	6.4 cm (2.5 in)	25 of 100 (Routine)
Paducah 2 WNW	United States	Record daily precipitation	37.3 mm (1.5 in)	25 of 100 (Routine)
Nagpur (Mayo Hospit	India	Record daily precipitation	55.9 mm (2.2 in)	24 of 100 (Routine)
Pusad	India	Record daily precipitation	72.4 mm (2.9 in)	24 of 100 (Routine)
Ft Bidwell	United States	Record low maximum temperature	13.3 C (55.9 F)	24 of 100 (Routine)
Clanton	United States	Record daily precipitation	49.5 mm (1.9 in)	23 of 100 (Routine)
Salmon AP	United States	Record low maximum temperature	7.8 C (46.0 F)	23 of 100 (Routine)
Gatesville	United States	Record high minimum temperature	25.0 C (77.0 F)	23 of 100 (Routine)
St Louis Eads Brg	United States	Record daily precipitation	54.9 mm (2.2 in)	23 of 100 (Routine)
Big Creek	Canada	Record low maximum temperature	-1.1 C (30.0 F)	22 of 100 (Routine)
Tirora	India	Record daily precipitation	36.1 mm (1.4 in)	22 of 100 (Routine)
Achinsk	Russia	Record high minimum temperature	11.8 C (53.2 F)	22 of 100 (Routine)

Counts by Type and Timescale

507 records

Records set or tied on 21 September 1945 by type: Highest daily maximum 32, Lowest daily maximum 135, Highest daily minimum 71, Lowest daily minimum 22, Heaviest daily rainfall 235, Heaviest daily snowfall 12.

Records on 21 September 1945 by type
Record type	Records
Highest daily maximum	32
Lowest daily maximum	135
Highest daily minimum	71
Lowest daily minimum	22
Heaviest daily rainfall	235
Heaviest daily snowfall	12
Deepest snow cover	0

Records on 21 September 1945 by timescale: all-time 1, monthly 4, daily 502.

How Much Records Were Beaten By

424 broken records

Margins by which the 424 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 141.3. Ties are not counted.

Top 20 by Significance

21 September 1945

Top 20 records on 21 September 1945 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 September 1945	Nandura, IN	daily rain	157.0 mm (6.2 in)	93.5 mm (3.7 in)	20 years	50 of 100 (Notable)
21 September 1945	Warora, IN	daily rain	153.7 mm (6.1 in)	141.3 mm (5.6 in)	20 years	50 of 100 (Notable)
21 September 1945	Cambridge, US	daily rain	27.4 mm (1.1 in)	24.9 mm (1.0 in)	16 years	49 of 100 (Notable)
21 September 1945	Pandherikawara, IN	monthly rain	193.0 mm (7.6 in)	49.0 mm (1.9 in)	36 years	48 of 100 (Notable)
21 September 1945	Columbia Wb City, US	daily rain	90.7 mm (3.6 in)	50.1 mm (2.0 in)	46 years	46 of 100 (Notable)
21 September 1945	Yaval, IN	daily rain	180.3 mm (7.1 in)	131.0 mm (5.2 in)	4 years	45 of 100 (Notable)
21 September 1945	Anjangaon, IN	daily rain	93.7 mm (3.7 in)	70.3 mm (2.8 in)	23 years	44 of 100 (Notable)
21 September 1945	Armori, IN	daily rain	153.2 mm (6.0 in)	113.8 mm (4.5 in)	0 years	44 of 100 (Notable)
21 September 1945	Asola, IN	daily rain	135.6 mm (5.3 in)	99.5 mm (3.9 in)	3 years	44 of 100 (Notable)
21 September 1945	Barwani, IN	daily rain	78.7 mm (3.1 in)	54.3 mm (2.1 in)	22 years	42 of 100 (Notable)
21 September 1945	Chimur, IN	daily rain	100.3 mm (3.9 in)	57.6 mm (2.3 in)	34 years	41 of 100 (Notable)
21 September 1945	Council, US	daily rain	33.8 mm (1.3 in)	27.7 mm (1.1 in)	0 years	41 of 100 (Notable)
21 September 1945	Patur, IN	daily rain	78.7 mm (3.1 in)	51.0 mm (2.0 in)	35 years	40 of 100 (Notable)
21 September 1945	Zanesville Wwtp, US	daily rain	47.0 mm (1.9 in)	27.9 mm (1.1 in)	24 years	40 of 100 (Notable)
21 September 1945	Ashton 1N, US	daily rain	31.0 mm (1.2 in)	20.1 mm (0.8 in)	8 years	37 of 100 (Notable)
21 September 1945	Gadhchiroli, IN	daily rain	137.7 mm (5.4 in)	72.7 mm (2.9 in)	3 years	36 of 100 (Notable)
21 September 1945	Irwin 2 SE, US	daily rain	36.1 mm (1.4 in)	18.3 mm (0.7 in)	20 years	36 of 100 (Notable)
21 September 1945	Mul, IN	daily rain	80.3 mm (3.2 in)	54.9 mm (2.2 in)	3 years	35 of 100 (Notable)
21 September 1945	Stillwater 2 W, US	daily rain	71.4 mm (2.8 in)	28.7 mm (1.1 in)	48 years	34 of 100 (Routine)
21 September 1945	Mundo Novo, BR	daily rain	28.0 mm (1.1 in)	11.8 mm (0.5 in)	34 years	33 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

1805 to 1945

Records set or tied on this calendar date in each year from 1805 to 1945. 1945 had 507 records.

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

Records on 09-21 in each year
Year	Records
1805	1
1812	1
1825	2
1840	1
1841	1
1842	1
1848	1
1854	1
1856	2
1868	1
1872	2
1873	1
1877	1
1878	1
1881	1
1882	1
1884	1
1886	1
1888	2
1889	1
1891	10
1892	1
1893	10
1894	2
1895	3
1896	2
1897	6
1898	6
1899	3
1900	2
1901	5
1902	5
1903	8
1904	20
1905	12
1906	17
1907	10
1908	17
1909	10
1910	8
1911	18
1912	26
1913	37
1914	29
1915	34
1916	48
1917	28
1918	43
1919	54
1920	29
1921	64
1922	35
1923	232
1924	291
1925	278
1926	178
1927	165
1928	81
1929	232
1930	82
1931	681
1932	242
1933	193
1934	492
1935	199
1936	329
1937	487
1938	508
1939	308
1940	908
1941	416
1942	291
1943	407
1944	413
1945	507
1946	176
1947	534
1948	301
1949	298
1950	334
1951	241
1952	430
1953	382
1954	453
1955	752
1956	1,100
1957	366
1958	588
1959	513
1960	418
1961	441
1962	1,085
1963	306
1964	374
1965	1,088
1966	565
1967	577
1968	790
1969	593
1970	708
1971	645
1972	599
1973	421
1974	652
1975	528
1976	694
1977	918
1978	818
1979	736
1980	990
1981	696
1982	1,484
1983	2,207
1984	707
1985	796
1986	671
1987	965
1988	557
1989	1,002
1990	716
1991	1,021
1992	752
1993	911
1994	713
1995	2,002
1996	1,233
1997	1,112
1998	1,481
1999	1,025
2000	884
2001	718
2002	696
2003	959
2004	888
2005	1,143
2006	920
2007	742
2008	740
2009	715
2010	1,290
2011	542
2012	595
2013	769
2014	716
2015	565
2016	989
2017	1,178
2018	1,051
2019	833
2020	580
2021	465
2022	1,049
2023	783
2024	470
2025	588
2026	469

Download the Data

Data for records on 1945-09-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 20	371
20 to 40	32
40 to 60	9
60 to 80	7
80 to 100	2
100 to 120	1
120 to 140	1
140 to 160	1