Weather Records on 30 May 1957

267 weather records were set or tied worldwide on 30 May 1957. Highest significance: Marshalltown, US.

Key Facts for 30 May 1957

On 30 May 1957, 267 weather records were set or tied at long-record stations worldwide.
55 were record highs and 71 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 263 daily.
Marshalltown set a daily record precipitation of 77.7 mm (3.1 in) on 30 May 1957.
Across 165 earlier years (1818 to 2026) the same calendar date averaged 440 records.

Record Map

267 stations

267 station records on 30 May 1957 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 May 1957: highest significance records shown on the map
Station	Country	Type	Value	Significance
Marshalltown	United States	Record daily precipitation	77.7 mm (3.1 in)	56 of 100 (Notable)
Kimball 2NE	United States	Record daily precipitation	96.8 mm (3.8 in)	56 of 100 (Notable)
Hennessey 4 ESE	United States	Record daily precipitation	83.8 mm (3.3 in)	54 of 100 (Notable)
Syracuse 1NE	United States	Record daily precipitation	69.9 mm (2.8 in)	50 of 100 (Notable)
Oakwood 3 SW	United States	Record daily precipitation	94.5 mm (3.7 in)	50 of 100 (Notable)
Robertson	South Africa	Record daily precipitation	26.5 mm (1.0 in)	49 of 100 (Notable)
Cape Town Maitland (Cem)	South Africa	Record daily precipitation	39.5 mm (1.6 in)	47 of 100 (Notable)
Deland 1 SSE	United States	Record daily precipitation	77.5 mm (3.1 in)	46 of 100 (Notable)
Lake Mills Wwtp	United States	Record daily precipitation	50.5 mm (2.0 in)	46 of 100 (Notable)
Grundy Ctr	United States	Record daily precipitation	75.7 mm (3.0 in)	44 of 100 (Notable)
Novo Acre (Giqui)	Brazil	Record daily precipitation	32.0 mm (1.3 in)	42 of 100 (Notable)
Caledon (Pol)	South Africa	Record daily precipitation	31.5 mm (1.2 in)	42 of 100 (Notable)
Salzburg	Austria	Record low minimum temperature	0.3 C (32.5 F)	40 of 100 (Notable)
Grinnell 3 SW	United States	Record daily precipitation	52.8 mm (2.1 in)	40 of 100 (Notable)
Kaliyal	India	Record daily precipitation	101.6 mm (4.0 in)	39 of 100 (Notable)
Ashland	United States	Record daily precipitation	67.6 mm (2.7 in)	38 of 100 (Notable)
Osage City	United States	Record daily precipitation	52.6 mm (2.1 in)	38 of 100 (Notable)
Munchen-Nymphenburg	Germany	Record low minimum temperature	-0.3 C (31.5 F)	37 of 100 (Notable)
Kremsmuenster	Austria	Record low minimum temperature	2.6 C (36.7 F)	36 of 100 (Notable)
Bamberg	Germany	Record low minimum temperature	-0.3 C (31.5 F)	36 of 100 (Notable)
Stillwater 2 W	United States	Record daily precipitation	38.1 mm (1.5 in)	36 of 100 (Notable)
Malmesbury	South Africa	Record daily precipitation	31.0 mm (1.2 in)	35 of 100 (Notable)
Madison Wb City	United States	Record daily precipitation	38.1 mm (1.5 in)	35 of 100 (Notable)
Beaufort Wwtp	United States	Record daily precipitation	139.7 mm (5.5 in)	34 of 100 (Routine)
Tarpon Spgs Sewage Plt	United States	Record daily precipitation	87.1 mm (3.4 in)	33 of 100 (Routine)
Capitan	United States	Record daily precipitation	40.6 mm (1.6 in)	33 of 100 (Routine)
Augusta	United States	Record daily precipitation	57.4 mm (2.3 in)	32 of 100 (Routine)
Oran-Hopital Militaire	Algeria	Record low minimum temperature	11.0 C (51.8 F)	31 of 100 (Routine)
Wien	Austria	Record low minimum temperature	4.7 C (40.5 F)	31 of 100 (Routine)
Augsburg (Sankt Stephan)	Germany	Record low minimum temperature	1.5 C (34.7 F)	31 of 100 (Routine)
Newkirk	United States	Record daily precipitation	44.5 mm (1.8 in)	31 of 100 (Routine)
Laurens	United States	Record daily precipitation	34.0 mm (1.3 in)	31 of 100 (Routine)
Phillipsburg 1 SSE	United States	Record daily precipitation	58.4 mm (2.3 in)	30 of 100 (Routine)
Waycross 4 NE	United States	Record daily precipitation	58.7 mm (2.3 in)	29 of 100 (Routine)
Tecumseh 1S	United States	Record daily precipitation	44.7 mm (1.8 in)	29 of 100 (Routine)
Tussenbeide	South Africa	Record daily precipitation	32.0 mm (1.3 in)	28 of 100 (Routine)
Iola 1 W	United States	Record daily precipitation	59.4 mm (2.3 in)	28 of 100 (Routine)
Iola	United States	Record daily precipitation	66.3 mm (2.6 in)	28 of 100 (Routine)
Winnsboro	United States	Record daily precipitation	56.6 mm (2.2 in)	28 of 100 (Routine)
Karlsruhe	Germany	Record low minimum temperature	3.2 C (37.8 F)	27 of 100 (Routine)
Zagreb-Gric	Croatia	Record low minimum temperature	7.7 C (45.9 F)	27 of 100 (Routine)
Visby_Flygplats	Sweden	Record low minimum temperature	0.9 C (33.6 F)	27 of 100 (Routine)
Richland	United States	Record high maximum temperature	35.6 C (96.1 F)	27 of 100 (Routine)
Royal Observatory	South Africa	Record daily precipitation	29.1 mm (1.1 in)	26 of 100 (Routine)
Eersterivier (Bos)	South Africa	Record daily precipitation	37.0 mm (1.5 in)	26 of 100 (Routine)
Uman	Ukraine	Record low minimum temperature	3.3 C (37.9 F)	26 of 100 (Routine)
Alexandria	United States	Record low minimum temperature	13.3 C (55.9 F)	26 of 100 (Routine)
Lebanon (Bos)	South Africa	Record daily precipitation	40.5 mm (1.6 in)	25 of 100 (Routine)
The Towers	South Africa	Record daily precipitation	29.0 mm (1.1 in)	25 of 100 (Routine)
Union Springs 9 S	United States	Record low minimum temperature	13.9 C (57.0 F)	25 of 100 (Routine)
Cedar Rapids #1	United States	Record daily precipitation	25.7 mm (1.0 in)	25 of 100 (Routine)
Toledo 3N	United States	Record daily precipitation	57.9 mm (2.3 in)	25 of 100 (Routine)
Walnut 4S	United States	Record daily precipitation	54.1 mm (2.1 in)	25 of 100 (Routine)
Mt Vernon 3 SW	United States	Record daily precipitation	40.9 mm (1.6 in)	25 of 100 (Routine)
Drobeta Turnu Severin	Romania	Record low maximum temperature	15.8 C (60.4 F)	24 of 100 (Routine)
Aleksandrovsk-Sahalinskij	Russia	Record high minimum temperature	13.9 C (57.0 F)	24 of 100 (Routine)
Odesa	Ukraine	Record low minimum temperature	7.9 C (46.2 F)	24 of 100 (Routine)
Atlantic 1 NE	United States	Record daily precipitation	35.3 mm (1.4 in)	24 of 100 (Routine)
Delaware 3 WSW	United States	Record daily precipitation	78.5 mm (3.1 in)	24 of 100 (Routine)
Glenwood 3SW	United States	Record daily precipitation	41.9 mm (1.6 in)	24 of 100 (Routine)

Counts by Type and Timescale

267 records

Records set or tied on 30 May 1957 by type: Highest daily maximum 20, Lowest daily maximum 21, Highest daily minimum 35, Lowest daily minimum 50, Heaviest daily rainfall 141.

Records on 30 May 1957 by type
Record type	Records
Highest daily maximum	20
Lowest daily maximum	21
Highest daily minimum	35
Lowest daily minimum	50
Heaviest daily rainfall	141
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 May 1957 by timescale: all-time 0, monthly 4, daily 263.

How Much Records Were Beaten By

214 broken records

Margins by which the 214 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 85.4. Ties are not counted.

Top 20 by Significance

30 May 1957

Top 20 records on 30 May 1957 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 1957	Marshalltown, US	daily rain	77.7 mm (3.1 in)	37.8 mm (1.5 in)	61 years	56 of 100 (Notable)
30 May 1957	Kimball 2NE, US	monthly rain	96.8 mm (3.8 in)	36.9 mm (1.5 in)	2 years	56 of 100 (Notable)
30 May 1957	Hennessey 4 ESE, US	daily rain	83.8 mm (3.3 in)	66.0 mm (2.6 in)	28 years	54 of 100 (Notable)
30 May 1957	Syracuse 1NE, US	daily rain	69.9 mm (2.8 in)	42.7 mm (1.7 in)	20 years	50 of 100 (Notable)
30 May 1957	Oakwood 3 SW, US	daily rain	94.5 mm (3.7 in)	85.4 mm (3.4 in)	20 years	50 of 100 (Notable)
30 May 1957	Robertson, ZA	daily rain	26.5 mm (1.0 in)	14.1 mm (0.6 in)	75 years	49 of 100 (Notable)
30 May 1957	Cape Town Maitland (Cem), ZA	daily rain	39.5 mm (1.6 in)	27.3 mm (1.1 in)	48 years	47 of 100 (Notable)
30 May 1957	Deland 1 SSE, US	daily rain	77.5 mm (3.1 in)	45.0 mm (1.8 in)	27 years	46 of 100 (Notable)
30 May 1957	Lake Mills Wwtp, US	daily rain	50.5 mm (2.0 in)	28.9 mm (1.1 in)	40 years	46 of 100 (Notable)
30 May 1957	Grundy Ctr, US	daily rain	75.7 mm (3.0 in)	23.6 mm (0.9 in)	61 years	44 of 100 (Notable)
30 May 1957	Novo Acre (Giqui), BR	daily rain	32.0 mm (1.3 in)	28.0 mm (1.1 in)	14 years	42 of 100 (Notable)
30 May 1957	Caledon (Pol), ZA	daily rain	31.5 mm (1.2 in)	15.0 mm (0.6 in)	64 years	42 of 100 (Notable)
30 May 1957	Salzburg, AT	daily low min	0.3 C (32.5 F)	3.6 C (6.5 F)	77 years	40 of 100 (Notable)
30 May 1957	Grinnell 3 SW, US	daily rain	52.8 mm (2.1 in)	43.4 mm (1.7 in)	0 years	40 of 100 (Notable)
30 May 1957	Kaliyal, IN	daily rain	101.6 mm (4.0 in)	62.5 mm (2.5 in)	24 years	39 of 100 (Notable)
30 May 1957	Ashland, US	daily rain	67.6 mm (2.7 in)	46.0 mm (1.8 in)	12 years	38 of 100 (Notable)
30 May 1957	Osage City, US	daily rain	52.6 mm (2.1 in)	25.4 mm (1.0 in)	52 years	38 of 100 (Notable)
30 May 1957	Munchen-Nymphenburg, DE	daily low min	-0.3 C (31.5 F)	3.3 C (5.9 F)	72 years	37 of 100 (Notable)
30 May 1957	Kremsmuenster, AT	daily low min	2.6 C (36.7 F)	1.9 C (3.4 F)	77 years	36 of 100 (Notable)
30 May 1957	Bamberg, DE	daily low min	-0.3 C (31.5 F)	3.4 C (6.1 F)	72 years	36 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

1818 to 1957

Records set or tied on this calendar date in each year from 1818 to 1957. 1957 had 267 records.

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

Records on 05-30 in each year
Year	Records
1818	3
1844	1
1847	1
1848	1
1852	1
1853	1
1855	1
1856	1
1858	1
1860	2
1863	1
1864	1
1865	4
1867	1
1868	4
1870	1
1871	2
1873	4
1878	1
1879	1
1880	2
1881	1
1882	2
1883	1
1884	2
1885	1
1886	1
1887	1
1889	3
1890	1
1891	1
1892	2
1893	7
1894	2
1895	5
1896	1
1897	1
1898	2
1899	4
1900	1
1901	4
1902	9
1903	12
1904	7
1905	20
1906	8
1907	20
1908	32
1909	6
1910	22
1911	22
1912	26
1913	89
1914	25
1915	32
1916	41
1917	42
1918	31
1919	90
1920	28
1921	392
1922	72
1923	121
1924	187
1925	190
1926	201
1927	177
1928	86
1929	368
1930	530
1931	316
1932	256
1933	250
1934	731
1935	88
1936	579
1937	440
1938	309
1939	336
1940	289
1941	518
1942	500
1943	444
1944	325
1945	383
1946	310
1947	880
1948	386
1949	318
1950	376
1951	448
1952	295
1953	622
1954	271
1955	377
1956	466
1957	267
1958	480
1959	419
1960	274
1961	657
1962	454
1963	245
1964	709
1965	454
1966	326
1967	859
1968	357
1969	1,092
1970	483
1971	1,044
1972	721
1973	391
1974	631
1975	776
1976	499
1977	444
1978	888
1979	1,185
1980	650
1981	1,001
1982	981
1983	1,310
1984	2,543
1985	772
1986	1,264
1987	1,021
1988	1,371
1989	1,021
1990	983
1991	1,264
1992	1,413
1993	690
1994	834
1995	777
1996	893
1997	936
1998	1,190
1999	1,113
2000	1,391
2001	854
2002	940
2003	1,110
2004	1,219
2005	737
2006	1,179
2007	1,128
2008	829
2009	480
2010	771
2011	1,914
2012	720
2013	821
2014	551
2015	699
2016	540
2017	657
2018	1,319
2019	706
2020	920
2021	841
2022	1,034
2023	344
2024	600
2025	828
2026	525

Download the Data

Data for records on 1957-05-30: 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	188
20 to 40	18
40 to 60	5
60 to 80	2
80 to 100	1