Weather Records on 20 August 1957

342 weather records were set or tied worldwide on 20 August 1957. Highest significance: Thana, IN.

Key Facts for 20 August 1957

On 20 August 1957, 342 weather records were set or tied at long-record stations worldwide.
57 were record highs and 115 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 5 monthly and 337 daily.
Thana set a daily record precipitation of 188.5 mm (7.4 in) on 20 August 1957.
Across 163 earlier years (1797 to 2026) the same calendar date averaged 455 records.

Record Map

342 stations

342 station records on 20 August 1957 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 August 1957: highest significance records shown on the map
Station	Country	Type	Value	Significance
Thana	India	Record daily precipitation	188.5 mm (7.4 in)	59 of 100 (Notable)
Tabl.Mtn Molteno Rsv	South Africa	Record daily precipitation	58.4 mm (2.3 in)	57 of 100 (Notable)
Sonamarg &	India	Record daily precipitation	76.2 mm (3.0 in)	56 of 100 (Notable)
Camden 3 W	United States	Record low maximum temperature	21.7 C (71.1 F)	56 of 100 (Notable)
Imperial	United States	Record low maximum temperature	29.4 C (84.9 F)	52 of 100 (Notable)
Epping	United States	Record daily precipitation	39.9 mm (1.6 in)	49 of 100 (Notable)
Table.Mtn Platteklip	South Africa	Record daily precipitation	87.2 mm (3.4 in)	48 of 100 (Notable)
Yuma Citrus STN	United States	Record low maximum temperature	27.8 C (82.0 F)	48 of 100 (Notable)
Antah	India	Record daily precipitation	121.9 mm (4.8 in)	42 of 100 (Notable)
Arad	Romania	Record daily precipitation	33.7 mm (1.3 in)	42 of 100 (Notable)
Caledon (Pol)	South Africa	Record daily precipitation	32.0 mm (1.3 in)	42 of 100 (Notable)
Cape Town Fire Station	South Africa	Record daily precipitation	57.0 mm (2.2 in)	42 of 100 (Notable)
Greensboro	United States	Record daily precipitation	88.1 mm (3.5 in)	38 of 100 (Notable)
Ankenes	Norway	Record daily precipitation	33.0 mm (1.3 in)	37 of 100 (Notable)
Bredasdorp	South Africa	Record daily precipitation	54.0 mm (2.1 in)	37 of 100 (Notable)
Phillaur	India	Record daily precipitation	109.7 mm (4.3 in)	36 of 100 (Notable)
Zoetendals Vallei	South Africa	Record daily precipitation	29.0 mm (1.1 in)	36 of 100 (Notable)
D.Baria	India	Record daily precipitation	76.2 mm (3.0 in)	35 of 100 (Notable)
Milledgeville	United States	Record low maximum temperature	24.4 C (75.9 F)	35 of 100 (Notable)
Betul(Badnur)	India	Record daily precipitation	90.7 mm (3.6 in)	34 of 100 (Routine)
Malpura	India	Record daily precipitation	104.1 mm (4.1 in)	34 of 100 (Routine)
Osijek	Croatia	Record daily precipitation	40.9 mm (1.6 in)	33 of 100 (Routine)
Jambughoda Sr	India	Record daily precipitation	91.9 mm (3.6 in)	33 of 100 (Routine)
Great Brak River	South Africa	Record daily precipitation	45.0 mm (1.8 in)	33 of 100 (Routine)
Moncure 3 SE	United States	Record low maximum temperature	20.0 C (68.0 F)	33 of 100 (Routine)
Renovo	United States	Record daily precipitation	30.5 mm (1.2 in)	33 of 100 (Routine)
Godhra	India	Record daily precipitation	65.0 mm (2.6 in)	32 of 100 (Routine)
Murbad	India	Record daily precipitation	155.4 mm (6.1 in)	32 of 100 (Routine)
Lalitpur	India	Record daily precipitation	132.8 mm (5.2 in)	32 of 100 (Routine)
Guayama 1SW	Puerto Rico [United States]	Record high minimum temperature	28.9 C (84.0 F)	32 of 100 (Routine)
Srungavarapukota	India	Record daily precipitation	52.8 mm (2.1 in)	31 of 100 (Routine)
Mangrol	India	Record daily precipitation	108.5 mm (4.3 in)	31 of 100 (Routine)
Swellendam (Tnk)	South Africa	Record daily precipitation	64.0 mm (2.5 in)	31 of 100 (Routine)
Brawley 2 SW	United States	Record low maximum temperature	31.7 C (89.1 F)	31 of 100 (Routine)
Covington	United States	Record daily precipitation	45.5 mm (1.8 in)	31 of 100 (Routine)
Kershaw 1SW	United States	Record low maximum temperature	20.0 C (68.0 F)	31 of 100 (Routine)
Nurnberg	Germany	Record low minimum temperature	5.5 C (41.9 F)	30 of 100 (Routine)
Lisboa Geofisica	Portugal	Record high minimum temperature	24.6 C (76.3 F)	30 of 100 (Routine)
Heidelberg Cape (Pol)	South Africa	Record daily precipitation	29.0 mm (1.1 in)	30 of 100 (Routine)
Sandhoogte (Pur)	South Africa	Record daily precipitation	33.5 mm (1.3 in)	30 of 100 (Routine)
Katdoornput 29	South Africa	Record daily precipitation	26.5 mm (1.0 in)	30 of 100 (Routine)
Chapel Hill 2 W	United States	Record low maximum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Black Rock	United States	Record high minimum temperature	18.3 C (64.9 F)	30 of 100 (Routine)
Kalyan	India	Record daily precipitation	157.5 mm (6.2 in)	29 of 100 (Routine)
Kishanganj	India	Record daily precipitation	115.3 mm (4.5 in)	29 of 100 (Routine)
Riksgransen	Sweden	Record daily precipitation	25.0 mm (1.0 in)	29 of 100 (Routine)
Brunswick	United States	Record low minimum temperature	19.4 C (66.9 F)	29 of 100 (Routine)
Paragonah	United States	Record low maximum temperature	23.3 C (73.9 F)	29 of 100 (Routine)
Lake Yellowstone	United States	Record high minimum temperature	12.2 C (54.0 F)	29 of 100 (Routine)
Prescott	United States	Record low maximum temperature	22.2 C (72.0 F)	28 of 100 (Routine)
Truxton Canyon	United States	Record low maximum temperature	26.7 C (80.1 F)	28 of 100 (Routine)
Cedar City Powerhouse	United States	Record low maximum temperature	21.7 C (71.1 F)	28 of 100 (Routine)
Riverdale	United States	Record high minimum temperature	24.4 C (75.9 F)	28 of 100 (Routine)
Charlottesville 2W	United States	Record low maximum temperature	18.3 C (64.9 F)	28 of 100 (Routine)
Gospic	Croatia	Record low maximum temperature	14.7 C (58.5 F)	27 of 100 (Routine)
Sidhi	India	Record daily precipitation	120.7 mm (4.8 in)	27 of 100 (Routine)
Madison	United States	Record low maximum temperature	25.0 C (77.0 F)	27 of 100 (Routine)
Washington 2 ESE	United States	Record low maximum temperature	23.3 C (73.9 F)	27 of 100 (Routine)
Bridger 2 N	United States	Record high minimum temperature	17.8 C (64.0 F)	27 of 100 (Routine)
Summerville 4W	United States	Record daily precipitation	63.0 mm (2.5 in)	27 of 100 (Routine)

Counts by Type and Timescale

342 records

Records set or tied on 20 August 1957 by type: Highest daily maximum 14, Lowest daily maximum 82, Highest daily minimum 43, Lowest daily minimum 33, Heaviest daily rainfall 170.

Records on 20 August 1957 by type
Record type	Records
Highest daily maximum	14
Lowest daily maximum	82
Highest daily minimum	43
Lowest daily minimum	33
Heaviest daily rainfall	170
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 August 1957 by timescale: all-time 0, monthly 5, daily 337.

How Much Records Were Beaten By

280 broken records

Margins by which the 280 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 102.4. Ties are not counted.

Top 20 by Significance

20 August 1957

Top 20 records on 20 August 1957 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 August 1957	Thana, IN	daily rain	188.5 mm (7.4 in)	102.4 mm (4.0 in)	54 years	59 of 100 (Notable)
20 August 1957	Tabl.Mtn Molteno Rsv, ZA	daily rain	58.4 mm (2.3 in)	44.4 mm (1.7 in)	34 years	57 of 100 (Notable)
20 August 1957	Sonamarg &, IN	daily rain	76.2 mm (3.0 in)	64.8 mm (2.6 in)	38 years	56 of 100 (Notable)
20 August 1957	Camden 3 W, US	daily low max	21.7 C (71.1 F)	4.7 C (8.5 F)	103 years	56 of 100 (Notable)
20 August 1957	Imperial, US	daily low max	29.4 C (84.9 F)	8.4 C (15.1 F)	51 years	52 of 100 (Notable)
20 August 1957	Epping, US	daily rain	39.9 mm (1.6 in)	25.7 mm (1.0 in)	44 years	49 of 100 (Notable)
20 August 1957	Table.Mtn Platteklip, ZA	monthly rain	87.2 mm (3.4 in)	22.7 mm (0.9 in)	36 years	48 of 100 (Notable)
20 August 1957	Yuma Citrus STN, US	daily low max	27.8 C (82.0 F)	8.9 C (16.0 F)	35 years	48 of 100 (Notable)
20 August 1957	Antah, IN	daily rain	121.9 mm (4.8 in)	62.0 mm (2.4 in)	39 years	42 of 100 (Notable)
20 August 1957	Arad, RO	daily rain	33.7 mm (1.3 in)	27.1 mm (1.1 in)	8 years	42 of 100 (Notable)
20 August 1957	Caledon (Pol), ZA	daily rain	32.0 mm (1.3 in)	9.1 mm (0.36 in)	78 years	42 of 100 (Notable)
20 August 1957	Cape Town Fire Station, ZA	monthly rain	57.0 mm (2.2 in)	4.7 mm (0.19 in)	63 years	42 of 100 (Notable)
20 August 1957	Greensboro, US	daily rain	88.1 mm (3.5 in)	52.5 mm (2.1 in)	22 years	38 of 100 (Notable)
20 August 1957	Ankenes, NO	daily rain	33.0 mm (1.3 in)	16.8 mm (0.7 in)	4 years	37 of 100 (Notable)
20 August 1957	Bredasdorp, ZA	daily rain	54.0 mm (2.1 in)	11.3 mm (0.4 in)	52 years	37 of 100 (Notable)
20 August 1957	Phillaur, IN	daily rain	109.7 mm (4.3 in)	59.7 mm (2.4 in)	24 years	36 of 100 (Notable)
20 August 1957	Zoetendals Vallei, ZA	daily rain	29.0 mm (1.1 in)	21.9 mm (0.9 in)	27 years	36 of 100 (Notable)
20 August 1957	D.Baria, IN	daily rain	76.2 mm (3.0 in)	39.1 mm (1.5 in)	43 years	35 of 100 (Notable)
20 August 1957	Milledgeville, US	daily low max	24.4 C (75.9 F)	3.4 C (6.1 F)	59 years	35 of 100 (Notable)
20 August 1957	Betul(Badnur), IN	daily rain	90.7 mm (3.6 in)	43.5 mm (1.7 in)	34 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

1797 to 1957

Records set or tied on this calendar date in each year from 1797 to 1957. 1957 had 342 records.

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

Records on 08-20 in each year
Year	Records
1797	1
1807	1
1809	2
1816	1
1830	1
1832	1
1838	1
1840	1
1842	1
1846	1
1849	1
1850	1
1852	1
1858	3
1863	5
1867	4
1870	3
1871	1
1873	1
1875	2
1877	1
1883	2
1884	2
1885	6
1886	1
1888	1
1889	2
1890	2
1891	2
1892	6
1893	1
1894	1
1895	1
1896	5
1897	6
1898	1
1899	5
1900	7
1901	12
1902	3
1903	7
1904	30
1905	7
1906	26
1907	15
1908	21
1909	69
1910	7
1911	18
1912	25
1913	23
1914	15
1915	14
1916	74
1917	51
1918	69
1919	25
1920	47
1921	23
1922	52
1923	83
1924	132
1925	193
1926	187
1927	338
1928	101
1929	213
1930	318
1931	214
1932	299
1933	324
1934	376
1935	339
1936	543
1937	537
1938	250
1939	448
1940	695
1941	230
1942	429
1943	436
1944	355
1945	398
1946	349
1947	988
1948	403
1949	431
1950	1,341
1951	824
1952	425
1953	441
1954	476
1955	848
1956	678
1957	342
1958	281
1959	764
1960	465
1961	520
1962	684
1963	577
1964	629
1965	470
1966	1,094
1967	657
1968	862
1969	608
1970	414
1971	585
1972	522
1973	490
1974	565
1975	411
1976	894
1977	860
1978	563
1979	1,009
1980	991
1981	856
1982	620
1983	1,465
1984	696
1985	666
1986	819
1987	564
1988	991
1989	603
1990	1,262
1991	804
1992	1,168
1993	759
1994	719
1995	1,113
1996	900
1997	1,214
1998	802
1999	810
2000	989
2001	909
2002	1,208
2003	1,031
2004	1,333
2005	1,112
2006	851
2007	1,955
2008	1,170
2009	1,414
2010	1,028
2011	987
2012	1,086
2013	545
2014	582
2015	1,075
2016	872
2017	324
2018	657
2019	698
2020	1,051
2021	1,028
2022	1,038
2023	1,479
2024	589
2025	1,134
2026	985

Download the Data

Data for records on 1957-08-20: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	250
20 to 40	16
40 to 60	10
60 to 80	3
80 to 100	0
100 to 120	1