Weather Records on 21 September 1950

334 weather records were set or tied worldwide on 21 September 1950. Highest significance: Uniontown 1 NE, US.

Key Facts for 21 September 1950

On 21 September 1950, 334 weather records were set or tied at long-record stations worldwide.
96 were record highs and 57 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 12 monthly and 320 daily.
Uniontown 1 NE set a monthly record daily precipitation of 79.0 mm (3.1 in) on 21 September 1950.
Across 155 earlier years (1805 to 2026) the same calendar date averaged 452 records.

Record Map

334 stations

334 station records on 21 September 1950 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 September 1950: highest significance records shown on the map
Station	Country	Type	Value	Significance
Uniontown 1 NE	United States	Record daily precipitation	79.0 mm (3.1 in)	58 of 100 (Notable)
Grannis	United States	Record daily precipitation	188.2 mm (7.4 in)	57 of 100 (Notable)
Mitchell 2 N	United States	Record daily precipitation	110.5 mm (4.4 in)	56 of 100 (Notable)
Pipestone	United States	Record daily precipitation	68.1 mm (2.7 in)	53 of 100 (Notable)
Flandreau	United States	Record daily precipitation	108.7 mm (4.3 in)	52 of 100 (Notable)
Menno	United States	Record daily precipitation	47.0 mm (1.9 in)	52 of 100 (Notable)
Farmland 5 NNW	United States	Record daily precipitation	98.0 mm (3.9 in)	50 of 100 (Notable)
Grundy Ctr	United States	Record daily precipitation	111.0 mm (4.4 in)	50 of 100 (Notable)
Parkston 8 ENE	United States	Record daily precipitation	107.2 mm (4.2 in)	50 of 100 (Notable)
Baramulla	India	Record daily precipitation	61.7 mm (2.4 in)	48 of 100 (Notable)
Wonderfontein (Skl)	South Africa	Record daily precipitation	45.7 mm (1.8 in)	48 of 100 (Notable)
Husum	Germany	Record daily precipitation	34.7 mm (1.4 in)	44 of 100 (Notable)
Huntington 1	United States	Record daily precipitation	47.2 mm (1.9 in)	43 of 100 (Notable)
Sedan	United States	Record daily precipitation	101.6 mm (4.0 in)	41 of 100 (Notable)
Springview 2NW	United States	Record daily precipitation	45.5 mm (1.8 in)	39 of 100 (Notable)
Independence	United States	Record daily precipitation	161.3 mm (6.4 in)	38 of 100 (Notable)
De Smet	United States	Record daily precipitation	63.0 mm (2.5 in)	36 of 100 (Notable)
Springs 1 SW	United States	Record daily precipitation	72.1 mm (2.8 in)	35 of 100 (Notable)
Canton	United States	Record daily precipitation	41.4 mm (1.6 in)	35 of 100 (Notable)
Kulgam	India	Record daily precipitation	77.7 mm (3.1 in)	34 of 100 (Routine)
Algona	United States	Record daily precipitation	39.4 mm (1.6 in)	34 of 100 (Routine)
Worthington	United States	Record daily precipitation	61.0 mm (2.4 in)	34 of 100 (Routine)
Snowflake	United States	Record low maximum temperature	15.6 C (60.1 F)	33 of 100 (Routine)
Grantsville	United States	Record daily precipitation	65.8 mm (2.6 in)	33 of 100 (Routine)
Mansfield 5 W	United States	Record daily precipitation	37.6 mm (1.5 in)	33 of 100 (Routine)
Claysville 3 W	United States	Record daily precipitation	70.1 mm (2.8 in)	33 of 100 (Routine)
Prairie du Sac 2 N	United States	Record daily precipitation	59.2 mm (2.3 in)	33 of 100 (Routine)
Maseskar	Sweden	Record daily precipitation	27.8 mm (1.1 in)	32 of 100 (Routine)
Rockville	United States	Record daily precipitation	64.5 mm (2.5 in)	32 of 100 (Routine)
Vincennes 4 E	United States	Record daily precipitation	50.0 mm (2.0 in)	32 of 100 (Routine)
Delaware 3 WSW	United States	Record daily precipitation	67.1 mm (2.6 in)	32 of 100 (Routine)
Greenville Wtp	United States	Record daily precipitation	115.6 mm (4.6 in)	32 of 100 (Routine)
Chillicothe	United States	Record daily precipitation	39.4 mm (1.6 in)	32 of 100 (Routine)
Madison Wb City	United States	Record daily precipitation	36.1 mm (1.4 in)	32 of 100 (Routine)
Ferozepur Sadar	India	Record daily precipitation	25.4 mm (1.0 in)	31 of 100 (Routine)
Tucson WFO	United States	Record low maximum temperature	25.0 C (77.0 F)	31 of 100 (Routine)
Sibley	United States	Record daily precipitation	27.9 mm (1.1 in)	29 of 100 (Routine)
Wrixum/Fohr	Germany	Record daily precipitation	31.0 mm (1.2 in)	28 of 100 (Routine)
Inwood 2 SW	United States	Record daily precipitation	32.0 mm (1.3 in)	28 of 100 (Routine)
Waverly	United States	Record daily precipitation	40.6 mm (1.6 in)	28 of 100 (Routine)
Richland Ctr	United States	Record daily precipitation	69.3 mm (2.7 in)	27 of 100 (Routine)
Pakala	India	Record daily precipitation	130.0 mm (5.1 in)	26 of 100 (Routine)
Mohawk	United States	Record low maximum temperature	29.4 C (84.9 F)	26 of 100 (Routine)
Pontiac	United States	Record daily precipitation	70.4 mm (2.8 in)	26 of 100 (Routine)
Butlerville 2 WNW	United States	Record daily precipitation	28.4 mm (1.1 in)	26 of 100 (Routine)
Taylorsville 2SW	United States	Record daily precipitation	36.6 mm (1.4 in)	26 of 100 (Routine)
Paterson	United States	Record low maximum temperature	16.1 C (61.0 F)	26 of 100 (Routine)
Ironton	United States	Record daily precipitation	45.7 mm (1.8 in)	26 of 100 (Routine)
Greensburg 3 SE Unity	United States	Record daily precipitation	36.6 mm (1.4 in)	26 of 100 (Routine)
Sedro-Woolley	United States	Record high maximum temperature	30.0 C (86.0 F)	26 of 100 (Routine)
Holbrook	United States	Record low maximum temperature	21.1 C (70.0 F)	25 of 100 (Routine)
Saint Johns	United States	Record low maximum temperature	18.9 C (66.0 F)	25 of 100 (Routine)
Portsmouth-Sciotoville	United States	Record daily precipitation	36.8 mm (1.4 in)	25 of 100 (Routine)
La Delle 7 NE	United States	Record daily precipitation	50.8 mm (2.0 in)	25 of 100 (Routine)
Coupeville 1 S	United States	Record high maximum temperature	26.1 C (79.0 F)	25 of 100 (Routine)
Baltimore Customs House	United States	Record daily precipitation	39.9 mm (1.6 in)	25 of 100 (Routine)
Tasiilaq	Greenland [Denmark]	Record low minimum temperature	-7.4 C (18.7 F)	24 of 100 (Routine)
Hogsett Rc Byrd Dam	United States	Record daily precipitation	36.1 mm (1.4 in)	24 of 100 (Routine)
Williamson	United States	Record daily precipitation	43.2 mm (1.7 in)	24 of 100 (Routine)
Kamloops	Canada	Record high maximum temperature	31.7 C (89.1 F)	23 of 100 (Routine)

Counts by Type and Timescale

334 records

Records set or tied on 21 September 1950 by type: Highest daily maximum 76, Lowest daily maximum 40, Highest daily minimum 20, Lowest daily minimum 17, Heaviest daily rainfall 181.

Records on 21 September 1950 by type
Record type	Records
Highest daily maximum	76
Lowest daily maximum	40
Highest daily minimum	20
Lowest daily minimum	17
Heaviest daily rainfall	181
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 September 1950 by timescale: all-time 2, monthly 12, daily 320.

How Much Records Were Beaten By

283 broken records

Margins by which the 283 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 97.0. Ties are not counted.

Top 20 by Significance

21 September 1950

Top 20 records on 21 September 1950 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 September 1950	Uniontown 1 NE, US	monthly rain	79.0 mm (3.1 in)	27.4 mm (1.1 in)	51 years	58 of 100 (Notable)
21 September 1950	Grannis, US	monthly rain	188.2 mm (7.4 in)	80.2 mm (3.2 in)	13 years	57 of 100 (Notable)
21 September 1950	Mitchell 2 N, US	monthly rain	110.5 mm (4.4 in)	51.3 mm (2.0 in)	5 years	56 of 100 (Notable)
21 September 1950	Pipestone, US	daily rain	68.1 mm (2.7 in)	57.9 mm (2.3 in)	21 years	53 of 100 (Notable)
21 September 1950	Flandreau, US	daily rain	108.7 mm (4.3 in)	81.8 mm (3.2 in)	25 years	52 of 100 (Notable)
21 September 1950	Menno, US	daily rain	47.0 mm (1.9 in)	41.9 mm (1.6 in)	36 years	52 of 100 (Notable)
21 September 1950	Farmland 5 NNW, US	daily rain	98.0 mm (3.9 in)	73.6 mm (2.9 in)	17 years	50 of 100 (Notable)
21 September 1950	Grundy Ctr, US	daily rain	111.0 mm (4.4 in)	97.0 mm (3.8 in)	19 years	50 of 100 (Notable)
21 September 1950	Parkston 8 ENE, US	monthly rain	107.2 mm (4.2 in)	39.1 mm (1.5 in)	0 years	50 of 100 (Notable)
21 September 1950	Baramulla, IN	daily rain	61.7 mm (2.4 in)	47.5 mm (1.9 in)	20 years	48 of 100 (Notable)
21 September 1950	Wonderfontein (Skl), ZA	daily rain	45.7 mm (1.8 in)	40.9 mm (1.6 in)	17 years	48 of 100 (Notable)
21 September 1950	Husum, DE	daily rain	34.7 mm (1.4 in)	20.5 mm (0.8 in)	20 years	44 of 100 (Notable)
21 September 1950	Huntington 1, US	daily rain	47.2 mm (1.9 in)	23.1 mm (0.9 in)	51 years	43 of 100 (Notable)
21 September 1950	Sedan, US	daily rain	101.6 mm (4.0 in)	67.8 mm (2.7 in)	3 years	41 of 100 (Notable)
21 September 1950	Springview 2NW, US	daily rain	45.5 mm (1.8 in)	31.3 mm (1.2 in)	8 years	39 of 100 (Notable)
21 September 1950	Independence, US	all-time rain	161.3 mm (6.4 in)	19.6 mm (0.8 in)	9 years	38 of 100 (Notable)
21 September 1950	De Smet, US	daily rain	63.0 mm (2.5 in)	29.2 mm (1.1 in)	25 years	36 of 100 (Notable)
21 September 1950	Springs 1 SW, US	monthly rain	72.1 mm (2.8 in)	15.7 mm (0.6 in)	24 years	35 of 100 (Notable)
21 September 1950	Canton, US	daily rain	41.4 mm (1.6 in)	25.4 mm (1.0 in)	36 years	35 of 100 (Notable)
21 September 1950	Kulgam, IN	daily rain	77.7 mm (3.1 in)	56.9 mm (2.2 in)	5 years	34 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 1950

Records set or tied on this calendar date in each year from 1805 to 1950. 1950 had 334 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 1950-09-21: 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	245
20 to 40	25
40 to 60	8
60 to 80	2
80 to 100	3