Weather Records on 21 August 1940

683 weather records were set or tied worldwide on 21 August 1940. Highest significance: Berhampur, IN.

Key Facts for 21 August 1940

On 21 August 1940, 683 weather records were set or tied at long-record stations worldwide.
62 were record highs and 441 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 42 monthly and 640 daily.
Berhampur set a monthly record daily precipitation of 207.5 mm (8.2 in) on 21 August 1940.
Across 165 earlier years (1800 to 2026) the same calendar date averaged 449 records.

Record Map

683 stations

683 station records on 21 August 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 August 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Berhampur	India	Record daily precipitation	207.5 mm (8.2 in)	62 of 100 (Major)
Muttaburra	Australia	Record daily precipitation	38.1 mm (1.5 in)	59 of 100 (Notable)
Farukhnagar	India	Record daily precipitation	101.6 mm (4.0 in)	54 of 100 (Notable)
Gopalpur	India	Record daily precipitation	229.9 mm (9.1 in)	54 of 100 (Notable)
Kaimganj	India	Record daily precipitation	139.2 mm (5.5 in)	54 of 100 (Notable)
Zuerich/Fluntern	Switzerland	Record daily precipitation	46.4 mm (1.8 in)	50 of 100 (Notable)
Bolaram	India	Record daily precipitation	61.2 mm (2.4 in)	49 of 100 (Notable)
Kempten	Germany	Record daily precipitation	60.5 mm (2.4 in)	48 of 100 (Notable)
Devgad	India	Record daily precipitation	114.3 mm (4.5 in)	48 of 100 (Notable)
Augsburg (Sankt Stephan)	Germany	Record daily precipitation	36.8 mm (1.4 in)	47 of 100 (Notable)
Metten	Germany	Record daily precipitation	41.5 mm (1.6 in)	45 of 100 (Notable)
Chatrapur	India	Record daily precipitation	119.4 mm (4.7 in)	44 of 100 (Notable)
Ohringen	Germany	Record daily precipitation	35.8 mm (1.4 in)	43 of 100 (Notable)
Cuero	United States	Record low minimum temperature	17.2 C (63.0 F)	43 of 100 (Notable)
Summer Hill	Australia	Record daily precipitation	36.3 mm (1.4 in)	42 of 100 (Notable)
Kamen Kaman	India	Record daily precipitation	106.2 mm (4.2 in)	41 of 100 (Notable)
Listowel Downs	Australia	Record daily precipitation	40.6 mm (1.6 in)	40 of 100 (Notable)
Houston Wb City	United States	Record low minimum temperature	17.2 C (63.0 F)	40 of 100 (Notable)
Barcaldine Post Office	Australia	Record daily precipitation	34.0 mm (1.3 in)	39 of 100 (Notable)
Rajapur	India	Record daily precipitation	121.9 mm (4.8 in)	39 of 100 (Notable)
Brownwood 2NE	United States	Record low minimum temperature	8.9 C (48.0 F)	39 of 100 (Notable)
Sardhana	India	Record daily precipitation	103.9 mm (4.1 in)	38 of 100 (Notable)
Khutar	India	Record daily precipitation	114.3 mm (4.5 in)	38 of 100 (Notable)
Brookville	United States	Record low maximum temperature	8.9 C (48.0 F)	38 of 100 (Notable)
Passau-Maierhof	Germany	Record daily precipitation	27.6 mm (1.1 in)	37 of 100 (Notable)
Saltern Post Office	Australia	Record daily precipitation	63.5 mm (2.5 in)	36 of 100 (Notable)
Rambha	India	Record daily precipitation	58.4 mm (2.3 in)	36 of 100 (Notable)
Khibiny	Russia	Record daily precipitation	26.4 mm (1.0 in)	36 of 100 (Notable)
Blackall Township	Australia	Record daily precipitation	27.2 mm (1.1 in)	35 of 100 (Notable)
Oberstdorf	Germany	Record daily precipitation	56.2 mm (2.2 in)	35 of 100 (Notable)
Alice	United States	Record low minimum temperature	18.3 C (64.9 F)	35 of 100 (Notable)
Atrauli	India	Record daily precipitation	76.7 mm (3.0 in)	34 of 100 (Routine)
Coreena	Australia	Record daily precipitation	32.5 mm (1.3 in)	33 of 100 (Routine)
Burenda	Australia	Record daily precipitation	35.6 mm (1.4 in)	33 of 100 (Routine)
Sholapur	India	Record daily precipitation	63.0 mm (2.5 in)	33 of 100 (Routine)
Purushottampur	India	Record daily precipitation	195.6 mm (7.7 in)	33 of 100 (Routine)
Blanco	United States	Record low minimum temperature	12.8 C (55.0 F)	33 of 100 (Routine)
Rothenburg Ob der Tauber	Germany	Record daily precipitation	25.3 mm (1.0 in)	32 of 100 (Routine)
Chickmagalur	India	Record daily precipitation	31.5 mm (1.2 in)	32 of 100 (Routine)
Hosanagar	India	Record daily precipitation	86.9 mm (3.4 in)	32 of 100 (Routine)
Muhammdi	India	Record daily precipitation	77.5 mm (3.1 in)	32 of 100 (Routine)
Tangorin	Australia	Record daily precipitation	27.7 mm (1.1 in)	31 of 100 (Routine)
Ueckermunde	Germany	Record daily precipitation	29.9 mm (1.2 in)	31 of 100 (Routine)
Beaumont City	United States	Record low maximum temperature	26.7 C (80.1 F)	31 of 100 (Routine)
College STN 6 SW	United States	Record low minimum temperature	14.4 C (57.9 F)	31 of 100 (Routine)
Georgetown Post Office	Australia	Record low maximum temperature	24.2 C (75.6 F)	30 of 100 (Routine)
Koraput	India	Record daily precipitation	91.9 mm (3.6 in)	30 of 100 (Routine)
Sepao	India	Record daily precipitation	80.0 mm (3.1 in)	30 of 100 (Routine)
Little Rock St Capitol	United States	Record low minimum temperature	14.4 C (57.9 F)	30 of 100 (Routine)
Cheneyville 1 NE	United States	Record low minimum temperature	13.9 C (57.0 F)	30 of 100 (Routine)
Coleman	United States	Record low minimum temperature	12.2 C (54.0 F)	30 of 100 (Routine)
Luling	United States	Record low minimum temperature	17.8 C (64.0 F)	30 of 100 (Routine)
New Braunfels	United States	Record low minimum temperature	17.2 C (63.0 F)	30 of 100 (Routine)
Mahad	India	Record daily precipitation	105.9 mm (4.2 in)	29 of 100 (Routine)
Raiford State Prison	United States	Record daily precipitation	52.8 mm (2.1 in)	29 of 100 (Routine)
State UNIV	United States	Record low minimum temperature	14.4 C (57.9 F)	29 of 100 (Routine)
Beaumont City	United States	Record low minimum temperature	17.2 C (63.0 F)	29 of 100 (Routine)
Henrietta	United States	Record low minimum temperature	13.3 C (55.9 F)	29 of 100 (Routine)
Bayrick	Australia	Record daily precipitation	25.4 mm (1.0 in)	28 of 100 (Routine)
Sorab	India	Record daily precipitation	46.2 mm (1.8 in)	28 of 100 (Routine)

Counts by Type and Timescale

683 records

Records set or tied on 21 August 1940 by type: Highest daily maximum 36, Lowest daily maximum 119, Highest daily minimum 26, Lowest daily minimum 322, Heaviest daily rainfall 180.

Records on 21 August 1940 by type
Record type	Records
Highest daily maximum	36
Lowest daily maximum	119
Highest daily minimum	26
Lowest daily minimum	322
Heaviest daily rainfall	180
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 August 1940 by timescale: all-time 1, monthly 42, daily 640.

How Much Records Were Beaten By

510 broken records

Margins by which the 510 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 94.2. Ties are not counted.

Top 20 by Significance

21 August 1940

Top 20 records on 21 August 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 August 1940	Berhampur, IN	monthly rain	207.5 mm (8.2 in)	89.1 mm (3.5 in)	26 years	62 of 100 (Major)
21 August 1940	Muttaburra, AU	daily rain	38.1 mm (1.5 in)	34.5 mm (1.4 in)	46 years	59 of 100 (Notable)
21 August 1940	Farukhnagar, IN	daily rain	101.6 mm (4.0 in)	78.7 mm (3.1 in)	39 years	54 of 100 (Notable)
21 August 1940	Gopalpur, IN	monthly rain	229.9 mm (9.1 in)	65.3 mm (2.6 in)	18 years	54 of 100 (Notable)
21 August 1940	Kaimganj, IN	daily rain	139.2 mm (5.5 in)	94.2 mm (3.7 in)	36 years	54 of 100 (Notable)
21 August 1940	Zuerich/Fluntern, CH	daily rain	46.4 mm (1.8 in)	33.8 mm (1.3 in)	25 years	50 of 100 (Notable)
21 August 1940	Bolaram, IN	daily rain	61.2 mm (2.4 in)	43.4 mm (1.7 in)	27 years	49 of 100 (Notable)
21 August 1940	Kempten, DE	daily rain	60.5 mm (2.4 in)	31.0 mm (1.2 in)	43 years	48 of 100 (Notable)
21 August 1940	Devgad, IN	daily rain	114.3 mm (4.5 in)	70.6 mm (2.8 in)	38 years	48 of 100 (Notable)
21 August 1940	Augsburg (Sankt Stephan), DE	daily rain	36.8 mm (1.4 in)	17.8 mm (0.7 in)	59 years	47 of 100 (Notable)
21 August 1940	Metten, DE	daily rain	41.5 mm (1.6 in)	18.9 mm (0.7 in)	48 years	45 of 100 (Notable)
21 August 1940	Chatrapur, IN	daily rain	119.4 mm (4.7 in)	64.8 mm (2.6 in)	14 years	44 of 100 (Notable)
21 August 1940	Ohringen, DE	daily rain	35.8 mm (1.4 in)	18.6 mm (0.7 in)	30 years	43 of 100 (Notable)
21 August 1940	Cuero, US	daily low min	17.2 C (63.0 F)	3.9 C (7.0 F)	37 years	43 of 100 (Notable)
21 August 1940	Summer Hill, AU	daily rain	36.3 mm (1.4 in)	36.3 mm (1.4 in)	31 years	42 of 100 (Notable)
21 August 1940	Kamen Kaman, IN	daily rain	106.2 mm (4.2 in)	78.0 mm (3.1 in)	17 years	41 of 100 (Notable)
21 August 1940	Listowel Downs, AU	daily rain	40.6 mm (1.6 in)	33.0 mm (1.3 in)	7 years	40 of 100 (Notable)
21 August 1940	Houston Wb City, US	daily low min	17.2 C (63.0 F)	3.4 C (6.1 F)	49 years	40 of 100 (Notable)
21 August 1940	Barcaldine Post Office, AU	daily rain	34.0 mm (1.3 in)	22.3 mm (0.9 in)	31 years	39 of 100 (Notable)
21 August 1940	Rajapur, IN	daily rain	121.9 mm (4.8 in)	63.5 mm (2.5 in)	37 years	39 of 100 (Notable)

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 1940

Records set or tied on this calendar date in each year from 1800 to 1940. 1940 had 683 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 1940-08-21: 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).

Histogram of margins by which records were beaten on 21 August 1940
Margin	Records
0 to 20	466
20 to 40	25
40 to 60	10
60 to 80	7
80 to 100	2