Weather Records on 21 June 1957

932 weather records were set or tied worldwide on 21 June 1957. Highest significance: San Diego de la Union, MX.

Key Facts for 21 June 1957

On 21 June 1957, 932 weather records were set or tied at long-record stations worldwide.
43 were record highs and 53 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 22 monthly and 908 daily.
San Diego de la Union set an all-time record daily precipitation of 126.0 mm (5.0 in) on 21 June 1957.
Across 165 earlier years (1802 to 2026) the same calendar date averaged 428 records.

Record Map

932 stations

932 station records on 21 June 1957 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 June 1957: highest significance records shown on the map
Station	Country	Type	Value	Significance
San Diego de la Union	Mexico	Record daily precipitation	126.0 mm (5.0 in)	78 of 100 (Major)
Adelaide West Terrace	Australia	Record daily precipitation	51.6 mm (2.0 in)	72 of 100 (Major)
Lake Charm	Australia	Record daily precipitation	29.2 mm (1.1 in)	65 of 100 (Major)
Warooka	Australia	Record daily precipitation	53.3 mm (2.1 in)	61 of 100 (Major)
Belair (Kalyra)	Australia	Record daily precipitation	63.5 mm (2.5 in)	60 of 100 (Major)
Kerang	Australia	Record daily precipitation	35.8 mm (1.4 in)	60 of 100 (Major)
Smith Bay (Smiths Bay)	Australia	Record daily precipitation	61.0 mm (2.4 in)	59 of 100 (Notable)
Happy Valley Reservoir	Australia	Record daily precipitation	50.5 mm (2.0 in)	58 of 100 (Notable)
Lyrup	Australia	Record daily precipitation	33.3 mm (1.3 in)	58 of 100 (Notable)
Cape de Couedic	Australia	Record daily precipitation	58.4 mm (2.3 in)	57 of 100 (Notable)
Glenelg Post Office	Australia	Record daily precipitation	41.4 mm (1.6 in)	57 of 100 (Notable)
Waikerie (Ramco)	Australia	Record daily precipitation	35.6 mm (1.4 in)	57 of 100 (Notable)
Fernihurst	Australia	Record daily precipitation	35.3 mm (1.4 in)	57 of 100 (Notable)
Hamley Bridge	Australia	Record daily precipitation	56.4 mm (2.2 in)	56 of 100 (Notable)
Freeling Railway	Australia	Record daily precipitation	46.5 mm (1.8 in)	56 of 100 (Notable)
Adelaide (Tea Tree Gully Counc	Australia	Record daily precipitation	60.7 mm (2.4 in)	56 of 100 (Notable)
Overland Corner	Australia	Record daily precipitation	40.1 mm (1.6 in)	56 of 100 (Notable)
Yadki	India	Record daily precipitation	78.5 mm (3.1 in)	56 of 100 (Notable)
Mulwala (Tarramia)	Australia	Record daily precipitation	40.6 mm (1.6 in)	55 of 100 (Notable)
Moorlands	Australia	Record daily precipitation	40.4 mm (1.6 in)	54 of 100 (Notable)
Cohuna (Goulburn Murray)	Australia	Record daily precipitation	30.0 mm (1.2 in)	54 of 100 (Notable)
Azimganj	India	Record daily precipitation	172.7 mm (6.8 in)	54 of 100 (Notable)
Mitcham Post Office	Australia	Record daily precipitation	44.2 mm (1.7 in)	53 of 100 (Notable)
Adelaide (Morphett Vale)	Australia	Record daily precipitation	51.6 mm (2.0 in)	53 of 100 (Notable)
Meningie	Australia	Record daily precipitation	27.2 mm (1.1 in)	52 of 100 (Notable)
Collingwood	Australia	Record daily precipitation	39.6 mm (1.6 in)	52 of 100 (Notable)
Clover Creek	Australia	Record daily precipitation	32.3 mm (1.3 in)	52 of 100 (Notable)
Maitland	Australia	Record daily precipitation	35.1 mm (1.4 in)	51 of 100 (Notable)
Murrays Lagoon (Bayside)	Australia	Record daily precipitation	65.0 mm (2.6 in)	51 of 100 (Notable)
Penneshaw	Australia	Record daily precipitation	33.8 mm (1.3 in)	51 of 100 (Notable)
Barham 2	Australia	Record daily precipitation	33.5 mm (1.3 in)	51 of 100 (Notable)
Rushworth	Australia	Record daily precipitation	35.1 mm (1.4 in)	51 of 100 (Notable)
Maple Plain	United States	Record daily precipitation	101.6 mm (4.0 in)	51 of 100 (Notable)
Murray Lagoon (Hawks Nest)	Australia	Record daily precipitation	43.2 mm (1.7 in)	50 of 100 (Notable)
St Peters Post Office	Australia	Record daily precipitation	44.2 mm (1.7 in)	50 of 100 (Notable)
Adelaide (Pooraka)	Australia	Record daily precipitation	43.9 mm (1.7 in)	50 of 100 (Notable)
Rose Isle	Australia	Record daily precipitation	35.6 mm (1.4 in)	50 of 100 (Notable)
Stansbury	Australia	Record daily precipitation	34.5 mm (1.4 in)	49 of 100 (Notable)
Gawler Railway	Australia	Record daily precipitation	40.4 mm (1.6 in)	49 of 100 (Notable)
Owen	Australia	Record daily precipitation	31.0 mm (1.2 in)	49 of 100 (Notable)
Nuriootpa	Australia	Record daily precipitation	46.7 mm (1.8 in)	49 of 100 (Notable)
Cudlee Creek (Millbrook)	Australia	Record daily precipitation	59.7 mm (2.4 in)	49 of 100 (Notable)
Edithburgh Post Office	Australia	Record daily precipitation	38.6 mm (1.5 in)	48 of 100 (Notable)
North Adelaide	Australia	Record daily precipitation	43.2 mm (1.7 in)	48 of 100 (Notable)
Clarendon	Australia	Record daily precipitation	51.6 mm (2.0 in)	48 of 100 (Notable)
Waikerie	Australia	Record daily precipitation	30.7 mm (1.2 in)	48 of 100 (Notable)
Yarrawalla South	Australia	Record daily precipitation	26.4 mm (1.0 in)	48 of 100 (Notable)
Moyhu	Australia	Record daily precipitation	47.8 mm (1.9 in)	48 of 100 (Notable)
Nuzvid	India	Record daily precipitation	75.2 mm (3.0 in)	47 of 100 (Notable)
Mora	United States	Record daily precipitation	83.8 mm (3.3 in)	47 of 100 (Notable)
Minlaton	Australia	Record daily precipitation	52.6 mm (2.1 in)	46 of 100 (Notable)
Stockport	Australia	Record daily precipitation	44.5 mm (1.8 in)	46 of 100 (Notable)
Noonbah	Australia	Record daily precipitation	29.2 mm (1.1 in)	46 of 100 (Notable)
Adelaide (Glen Osmond)	Australia	Record daily precipitation	44.2 mm (1.7 in)	45 of 100 (Notable)
Lyndoch (Pewsey Vale)	Australia	Record daily precipitation	53.8 mm (2.1 in)	45 of 100 (Notable)
Houghton (Glen Ewin)	Australia	Record daily precipitation	64.0 mm (2.5 in)	45 of 100 (Notable)
Canary Island South	Australia	Record daily precipitation	25.7 mm (1.0 in)	45 of 100 (Notable)
Cygnet River	Australia	Record daily precipitation	43.2 mm (1.7 in)	44 of 100 (Notable)
Cadell	Australia	Record daily precipitation	29.2 mm (1.1 in)	44 of 100 (Notable)
Thurulgoona	Australia	Record daily precipitation	30.5 mm (1.2 in)	44 of 100 (Notable)

Counts by Type and Timescale

932 records

Records set or tied on 21 June 1957 by type: Highest daily maximum 9, Lowest daily maximum 24, Highest daily minimum 34, Lowest daily minimum 29, Heaviest daily rainfall 835, Heaviest daily snowfall 1.

Records on 21 June 1957 by type
Record type	Records
Highest daily maximum	9
Lowest daily maximum	24
Highest daily minimum	34
Lowest daily minimum	29
Heaviest daily rainfall	835
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 21 June 1957 by timescale: all-time 2, monthly 22, daily 908.

How Much Records Were Beaten By

888 broken records

Margins by which the 888 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 83.0. Ties are not counted.

Top 20 by Significance

21 June 1957

Top 20 records on 21 June 1957 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 June 1957	San Diego de la Union, MX	all-time rain	126.0 mm (5.0 in)	50.6 mm (2.0 in)	43 years	78 of 100 (Major)
21 June 1957	Adelaide West Terrace, AU	daily rain	51.6 mm (2.0 in)	19.8 mm (0.8 in)	109 years	72 of 100 (Major)
21 June 1957	Lake Charm, AU	daily rain	29.2 mm (1.1 in)	22.1 mm (0.9 in)	60 years	65 of 100 (Major)
21 June 1957	Warooka, AU	daily rain	53.3 mm (2.1 in)	37.6 mm (1.5 in)	40 years	61 of 100 (Major)
21 June 1957	Belair (Kalyra), AU	daily rain	63.5 mm (2.5 in)	43.7 mm (1.7 in)	47 years	60 of 100 (Major)
21 June 1957	Kerang, AU	daily rain	35.8 mm (1.4 in)	21.6 mm (0.9 in)	57 years	60 of 100 (Major)
21 June 1957	Smith Bay (Smiths Bay), AU	daily rain	61.0 mm (2.4 in)	37.6 mm (1.5 in)	48 years	59 of 100 (Notable)
21 June 1957	Happy Valley Reservoir, AU	daily rain	50.5 mm (2.0 in)	25.1 mm (1.0 in)	48 years	58 of 100 (Notable)
21 June 1957	Lyrup, AU	daily rain	33.3 mm (1.3 in)	28.2 mm (1.1 in)	40 years	58 of 100 (Notable)
21 June 1957	Cape de Couedic, AU	daily rain	58.4 mm (2.3 in)	28.7 mm (1.1 in)	40 years	57 of 100 (Notable)
21 June 1957	Glenelg Post Office, AU	daily rain	41.4 mm (1.6 in)	22.6 mm (0.9 in)	47 years	57 of 100 (Notable)
21 June 1957	Waikerie (Ramco), AU	daily rain	35.6 mm (1.4 in)	19.9 mm (0.8 in)	47 years	57 of 100 (Notable)
21 June 1957	Fernihurst, AU	daily rain	35.3 mm (1.4 in)	21.1 mm (0.8 in)	57 years	57 of 100 (Notable)
21 June 1957	Hamley Bridge, AU	monthly rain	56.4 mm (2.2 in)	9.9 mm (0.39 in)	68 years	56 of 100 (Notable)
21 June 1957	Freeling Railway, AU	monthly rain	46.5 mm (1.8 in)	14.2 mm (0.6 in)	40 years	56 of 100 (Notable)
21 June 1957	Adelaide (Tea Tree Gully Counc, AU	daily rain	60.7 mm (2.4 in)	30.2 mm (1.2 in)	47 years	56 of 100 (Notable)
21 June 1957	Overland Corner, AU	daily rain	40.1 mm (1.6 in)	18.3 mm (0.7 in)	47 years	56 of 100 (Notable)
21 June 1957	Yadki, IN	daily rain	78.5 mm (3.1 in)	59.2 mm (2.3 in)	38 years	56 of 100 (Notable)
21 June 1957	Mulwala (Tarramia), AU	daily rain	40.6 mm (1.6 in)	25.4 mm (1.0 in)	52 years	55 of 100 (Notable)
21 June 1957	Moorlands, AU	daily rain	40.4 mm (1.6 in)	18.8 mm (0.7 in)	47 years	54 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

1802 to 1957

Records set or tied on this calendar date in each year from 1802 to 1957. 1957 had 932 records.

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

Records on 06-21 in each year
Year	Records
1802	1
1803	2
1805	1
1814	1
1821	3
1828	1
1831	1
1839	2
1846	1
1853	1
1855	1
1861	3
1865	1
1868	1
1869	4
1870	3
1871	1
1873	1
1874	1
1875	2
1879	1
1880	1
1881	1
1882	1
1883	1
1884	2
1885	1
1886	3
1887	1
1888	3
1889	1
1891	1
1892	2
1893	7
1895	6
1896	3
1897	3
1898	6
1899	6
1900	6
1901	5
1902	20
1903	15
1904	7
1905	14
1906	19
1907	15
1908	20
1909	19
1910	36
1911	12
1912	14
1913	34
1914	24
1915	40
1916	80
1917	97
1918	77
1919	32
1920	42
1921	85
1922	43
1923	229
1924	124
1925	333
1926	162
1927	146
1928	139
1929	84
1930	177
1931	340
1932	180
1933	645
1934	223
1935	247
1936	642
1937	475
1938	396
1939	250
1940	674
1941	401
1942	340
1943	439
1944	426
1945	709
1946	386
1947	637
1948	392
1949	391
1950	329
1951	347
1952	502
1953	761
1954	501
1955	271
1956	534
1957	932
1958	627
1959	356
1960	471
1961	956
1962	176
1963	667
1964	458
1965	400
1966	467
1967	789
1968	654
1969	687
1970	614
1971	394
1972	934
1973	683
1974	598
1975	996
1976	746
1977	476
1978	368
1979	857
1980	677
1981	889
1982	658
1983	752
1984	913
1985	516
1986	601
1987	940
1988	1,834
1989	856
1990	847
1991	1,067
1992	1,679
1993	939
1994	777
1995	978
1996	1,075
1997	1,037
1998	1,746
1999	994
2000	1,212
2001	658
2002	828
2003	1,034
2004	697
2005	1,090
2006	774
2007	1,085
2008	580
2009	1,060
2010	852
2011	1,340
2012	1,151
2013	571
2014	434
2015	707
2016	877
2017	954
2018	577
2019	969
2020	519
2021	1,132
2022	774
2023	987
2024	679
2025	1,536
2026	736

Download the Data

Data for records on 1957-06-21: 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 2026-10-12 (12 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	783
20 to 40	97
40 to 60	5
60 to 80	1
80 to 100	2