Weather Records on 21 August 1931

277 weather records were set or tied worldwide on 21 August 1931. Highest significance: Keonjhargarh, IN.

Key Facts for 21 August 1931

On 21 August 1931, 277 weather records were set or tied at long-record stations worldwide.
73 were record highs and 57 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 10 monthly and 264 daily.
Keonjhargarh set a monthly record daily precipitation of 180.3 mm (7.1 in) on 21 August 1931.
Across 165 earlier years (1800 to 2026) the same calendar date averaged 451 records.

Record Map

277 stations

277 station records on 21 August 1931 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 August 1931: highest significance records shown on the map
Station	Country	Type	Value	Significance
Keonjhargarh	India	Record daily precipitation	180.3 mm (7.1 in)	54 of 100 (Notable)
Gulah(Gula)	India	Record daily precipitation	114.3 mm (4.5 in)	49 of 100 (Notable)
Rockingham	United States	Record daily precipitation	80.5 mm (3.2 in)	48 of 100 (Notable)
Chendipada	India	Record daily precipitation	125.5 mm (4.9 in)	45 of 100 (Notable)
Purankot	India	Record daily precipitation	227.3 mm (8.9 in)	45 of 100 (Notable)
Dadahor	India	Record daily precipitation	116.8 mm (4.6 in)	45 of 100 (Notable)
Bandher	India	Record daily precipitation	105.9 mm (4.2 in)	45 of 100 (Notable)
Baton Rouge	United States	Record daily precipitation	88.1 mm (3.5 in)	45 of 100 (Notable)
Phillaur	India	Record daily precipitation	121.9 mm (4.8 in)	43 of 100 (Notable)
Narsingpur	India	Record daily precipitation	104.1 mm (4.1 in)	39 of 100 (Notable)
Poretskoye	Russia	Record daily precipitation	42.2 mm (1.7 in)	37 of 100 (Notable)
Banki Bankigarh	India	Record daily precipitation	114.3 mm (4.5 in)	35 of 100 (Notable)
Creston	United States	Record daily precipitation	50.8 mm (2.0 in)	35 of 100 (Notable)
Phulbani	India	Record daily precipitation	121.7 mm (4.8 in)	34 of 100 (Routine)
Ludhiana	India	Record daily precipitation	162.8 mm (6.4 in)	34 of 100 (Routine)
Chapel Hill 2 W	United States	Record daily precipitation	85.1 mm (3.4 in)	34 of 100 (Routine)
Philippi	United States	Record daily precipitation	49.5 mm (1.9 in)	34 of 100 (Routine)
Point Pleasant	United States	Record daily precipitation	34.8 mm (1.4 in)	34 of 100 (Routine)
Americus	United States	Record daily precipitation	44.5 mm (1.8 in)	33 of 100 (Routine)
Cheraw	United States	Record daily precipitation	128.0 mm (5.0 in)	33 of 100 (Routine)
Sambalpur	India	Record daily precipitation	243.8 mm (9.6 in)	32 of 100 (Routine)
Glenville	United States	Record low maximum temperature	20.0 C (68.0 F)	32 of 100 (Routine)
Robertsburg	United States	Record daily precipitation	32.5 mm (1.3 in)	32 of 100 (Routine)
Gujjran	India	Record daily precipitation	63.5 mm (2.5 in)	31 of 100 (Routine)
Glenville	United States	Record daily precipitation	51.3 mm (2.0 in)	30 of 100 (Routine)
Evansville Ft Court STN	United States	Record daily precipitation	70.6 mm (2.8 in)	29 of 100 (Routine)
Moorefield 1 SSE	United States	Record daily precipitation	30.5 mm (1.2 in)	29 of 100 (Routine)
Kuzhithurai	India	Record daily precipitation	31.0 mm (1.2 in)	28 of 100 (Routine)
Richmond City Locks	United States	Record daily precipitation	120.9 mm (4.8 in)	28 of 100 (Routine)
Spencer	United States	Record daily precipitation	33.5 mm (1.3 in)	28 of 100 (Routine)
Upper Tract	United States	Record daily precipitation	38.1 mm (1.5 in)	28 of 100 (Routine)
Creston	United States	Record low maximum temperature	18.9 C (66.0 F)	27 of 100 (Routine)
Oran-Hopital Militaire	Algeria	Record high maximum temperature	35.0 C (95.0 F)	26 of 100 (Routine)
Saskatoon Diefenbaker Int'l A	Canada	Record high minimum temperature	17.2 C (63.0 F)	26 of 100 (Routine)
Nawanshahr	India	Record daily precipitation	118.4 mm (4.7 in)	26 of 100 (Routine)
Demopolis Lock 4	United States	Record daily precipitation	38.9 mm (1.5 in)	26 of 100 (Routine)
Greensboro	United States	Record daily precipitation	41.4 mm (1.6 in)	26 of 100 (Routine)
Monroe 2 SE	United States	Record daily precipitation	89.4 mm (3.5 in)	26 of 100 (Routine)
Thanesar	India	Record daily precipitation	38.6 mm (1.5 in)	25 of 100 (Routine)
Ludhiana	India	Record daily precipitation	152.4 mm (6.0 in)	25 of 100 (Routine)
New Martinsville 4 NNE	United States	Record low maximum temperature	20.0 C (68.0 F)	25 of 100 (Routine)
Bathurst	Canada	Record low maximum temperature	16.7 C (62.1 F)	24 of 100 (Routine)
Nordby (Fano)	Denmark	Record daily precipitation	26.3 mm (1.0 in)	24 of 100 (Routine)
Jonesboro 3 SSE	United States	Record daily precipitation	39.4 mm (1.6 in)	24 of 100 (Routine)
Buchanan	United States	Record daily precipitation	53.3 mm (2.1 in)	23 of 100 (Routine)
Morgantown 1	United States	Record low maximum temperature	17.8 C (64.0 F)	23 of 100 (Routine)
Perinthalamanna	India	Record daily precipitation	62.7 mm (2.5 in)	22 of 100 (Routine)
Kanas	India	Record daily precipitation	94.0 mm (3.7 in)	22 of 100 (Routine)
Eraniel	India	Record daily precipitation	33.0 mm (1.3 in)	22 of 100 (Routine)
Ironton	United States	Record low maximum temperature	20.6 C (69.1 F)	22 of 100 (Routine)
Prince Albert	Canada	Record high minimum temperature	17.2 C (63.0 F)	21 of 100 (Routine)
Minnedosa	Canada	Record high maximum temperature	36.7 C (98.1 F)	21 of 100 (Routine)
St Albans	Canada	Record high maximum temperature	38.9 C (102.0 F)	21 of 100 (Routine)
Winnipeg St Johns Coll	Canada	Record high maximum temperature	37.8 C (100.0 F)	21 of 100 (Routine)
Washim	India	Record daily precipitation	83.8 mm (3.3 in)	21 of 100 (Routine)
Lehal	India	Record daily precipitation	103.4 mm (4.1 in)	21 of 100 (Routine)
Tarpon Spgs Sewage Plt	United States	Record high minimum temperature	26.7 C (80.1 F)	21 of 100 (Routine)
Salisbury	United States	Record daily precipitation	51.3 mm (2.0 in)	21 of 100 (Routine)
Lost Creek Near	United States	Record low maximum temperature	18.3 C (64.9 F)	21 of 100 (Routine)
Sorve	Estonia	Record daily precipitation	21.2 mm (0.8 in)	20 of 100 (Routine)

Counts by Type and Timescale

277 records

Records set or tied on 21 August 1931 by type: Highest daily maximum 29, Lowest daily maximum 50, Highest daily minimum 44, Lowest daily minimum 7, Heaviest daily rainfall 147.

Records on 21 August 1931 by type
Record type	Records
Highest daily maximum	29
Lowest daily maximum	50
Highest daily minimum	44
Lowest daily minimum	7
Heaviest daily rainfall	147
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 August 1931 by timescale: all-time 3, monthly 10, daily 264.

How Much Records Were Beaten By

227 broken records

Margins by which the 227 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 171.4. Ties are not counted.

Top 20 by Significance

21 August 1931

Top 20 records on 21 August 1931 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 August 1931	Keonjhargarh, IN	monthly rain	180.3 mm (7.1 in)	66.0 mm (2.6 in)	19 years	54 of 100 (Notable)
21 August 1931	Gulah(Gula), IN	daily rain	114.3 mm (4.5 in)	92.7 mm (3.6 in)	20 years	49 of 100 (Notable)
21 August 1931	Rockingham, US	daily rain	80.5 mm (3.2 in)	62.7 mm (2.5 in)	24 years	48 of 100 (Notable)
21 August 1931	Chendipada, IN	daily rain	125.5 mm (4.9 in)	100.1 mm (3.9 in)	6 years	45 of 100 (Notable)
21 August 1931	Purankot, IN	daily rain	227.3 mm (8.9 in)	171.4 mm (6.7 in)	6 years	45 of 100 (Notable)
21 August 1931	Dadahor, IN	daily rain	116.8 mm (4.6 in)	84.5 mm (3.3 in)	8 years	45 of 100 (Notable)
21 August 1931	Bandher, IN	daily rain	105.9 mm (4.2 in)	76.4 mm (3.0 in)	8 years	45 of 100 (Notable)
21 August 1931	Baton Rouge, US	daily rain	88.1 mm (3.5 in)	48.2 mm (1.9 in)	33 years	45 of 100 (Notable)
21 August 1931	Phillaur, IN	daily rain	121.9 mm (4.8 in)	83.5 mm (3.3 in)	22 years	43 of 100 (Notable)
21 August 1931	Narsingpur, IN	daily rain	104.1 mm (4.1 in)	73.6 mm (2.9 in)	8 years	39 of 100 (Notable)
21 August 1931	Poretskoye, RU	daily rain	42.2 mm (1.7 in)	19.2 mm (0.8 in)	16 years	37 of 100 (Notable)
21 August 1931	Banki Bankigarh, IN	daily rain	114.3 mm (4.5 in)	60.2 mm (2.4 in)	28 years	35 of 100 (Notable)
21 August 1931	Creston, US	daily rain	50.8 mm (2.0 in)	29.7 mm (1.2 in)	24 years	35 of 100 (Notable)
21 August 1931	Phulbani, IN	daily rain	121.7 mm (4.8 in)	75.2 mm (3.0 in)	2 years	34 of 100 (Routine)
21 August 1931	Ludhiana, IN	all-time rain	162.8 mm (6.4 in)	9.6 mm (0.38 in)	24 years	34 of 100 (Routine)
21 August 1931	Chapel Hill 2 W, US	daily rain	85.1 mm (3.4 in)	36.8 mm (1.4 in)	39 years	34 of 100 (Routine)
21 August 1931	Philippi, US	daily rain	49.5 mm (1.9 in)	35.5 mm (1.4 in)	5 years	34 of 100 (Routine)
21 August 1931	Point Pleasant, US	daily rain	34.8 mm (1.4 in)	24.9 mm (1.0 in)	30 years	34 of 100 (Routine)
21 August 1931	Americus, US	daily rain	44.5 mm (1.8 in)	33.1 mm (1.3 in)	22 years	33 of 100 (Routine)
21 August 1931	Cheraw, US	monthly rain	128.0 mm (5.0 in)	18.8 mm (0.7 in)	30 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

1800 to 1931

Records set or tied on this calendar date in each year from 1800 to 1931. 1931 had 277 records.

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

Records on 08-21 in each year
Year	Records
1800	1
1802	1
1804	1
1807	1
1816	1
1818	1
1832	1
1834	1
1839	3
1843	1
1847	1
1849	3
1850	1
1851	2
1863	1
1866	1
1867	2
1870	3
1871	2
1872	1
1873	1
1876	1
1877	2
1879	2
1884	2
1885	5
1886	1
1887	5
1888	2
1889	3
1890	4
1891	2
1893	4
1894	8
1895	3
1896	2
1897	4
1898	4
1899	7
1900	4
1901	9
1902	8
1903	6
1904	8
1905	4
1906	22
1907	20
1908	13
1909	17
1910	33
1911	19
1912	50
1913	37
1914	24
1915	21
1916	106
1917	101
1918	202
1919	19
1920	59
1921	34
1922	58
1923	111
1924	135
1925	220
1926	227
1927	228
1928	110
1929	234
1930	297
1931	277
1932	264
1933	328
1934	320
1935	318
1936	807
1937	762
1938	239
1939	630
1940	683
1941	180
1942	415
1943	438
1944	346
1945	544
1946	390
1947	954
1948	305
1949	508
1950	958
1951	699
1952	368
1953	331
1954	497
1955	885
1956	701
1957	490
1958	389
1959	704
1960	490
1961	644
1962	469
1963	338
1964	794
1965	455
1966	661
1967	541
1968	1,014
1969	650
1970	373
1971	660
1972	441
1973	438
1974	564
1975	545
1976	756
1977	764
1978	445
1979	778
1980	904
1981	1,015
1982	769
1983	1,407
1984	975
1985	623
1986	1,166
1987	740
1988	889
1989	828
1990	910
1991	828
1992	957
1993	698
1994	968
1995	962
1996	950
1997	1,291
1998	948
1999	717
2000	861
2001	797
2002	965
2003	1,241
2004	1,585
2005	1,071
2006	797
2007	1,829
2008	1,012
2009	1,319
2010	1,155
2011	1,022
2012	990
2013	513
2014	624
2015	651
2016	890
2017	347
2018	816
2019	631
2020	1,147
2021	767
2022	917
2023	1,826
2024	777
2025	1,230
2026	1,289

Download the Data

Data for records on 1931-08-21: 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 25	196
25 to 50	17
50 to 75	7
75 to 100	5
100 to 125	1
125 to 150	0
150 to 175	1