Weather Records on 30 May 1983

1,310 weather records were set or tied worldwide on 30 May 1983. Highest significance: Olga 2 SE, US.

Key Facts for 30 May 1983

On 30 May 1983, 1,310 weather records were set or tied at long-record stations worldwide.
427 were record highs and 395 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 84 monthly and 1,223 daily.
Olga 2 SE set a daily record precipitation of 35.6 mm (1.4 in) on 30 May 1983.
Across 165 earlier years (1818 to 2026) the same calendar date averaged 433 records.

Record Map

1,310 stations

1,310 station records on 30 May 1983 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 May 1983: highest significance records shown on the map
Station	Country	Type	Value	Significance
Olga 2 SE	United States	Record daily precipitation	35.6 mm (1.4 in)	75 of 100 (Major)
Zimnegorskij Majak	Russia	Record daily precipitation	51.2 mm (2.0 in)	66 of 100 (Major)
Usugli	Russia	Record daily precipitation	28.4 mm (1.1 in)	52 of 100 (Notable)
Sain Alto	Mexico	Record daily precipitation	37.3 mm (1.5 in)	51 of 100 (Notable)
Fazenda Aterradinho	Brazil	Record daily precipitation	73.2 mm (2.9 in)	50 of 100 (Notable)
Fredericton Cda	Canada	Record daily precipitation	51.6 mm (2.0 in)	50 of 100 (Notable)
Cotonou	Benin	Record daily precipitation	112.0 mm (4.4 in)	49 of 100 (Notable)
Itatiba	Brazil	Record daily precipitation	80.3 mm (3.2 in)	48 of 100 (Notable)
Rosalia	United States	Record high minimum temperature	17.8 C (64.0 F)	47 of 100 (Notable)
Cesario Lange	Brazil	Record daily precipitation	52.3 mm (2.1 in)	45 of 100 (Notable)
Sete Barras	Brazil	Record daily precipitation	69.8 mm (2.7 in)	45 of 100 (Notable)
Laketown	United States	Record high minimum temperature	15.0 C (59.0 F)	45 of 100 (Notable)
Olga 2 SE	United States	Record high minimum temperature	12.8 C (55.0 F)	45 of 100 (Notable)
Capivari	Brazil	Record daily precipitation	59.2 mm (2.3 in)	44 of 100 (Notable)
Tonala (Smn)	Mexico	Record high minimum temperature	30.0 C (86.0 F)	44 of 100 (Notable)
Cedral	Mexico	Record low maximum temperature	18.9 C (66.0 F)	44 of 100 (Notable)
Reboly	Russia	Record daily precipitation	30.5 mm (1.2 in)	44 of 100 (Notable)
Middletown 4 W	United States	Record daily precipitation	27.7 mm (1.1 in)	44 of 100 (Notable)
Astolfo Dutra	Brazil	Record daily precipitation	39.2 mm (1.5 in)	43 of 100 (Notable)
Clube de Regatas	Brazil	Record daily precipitation	100.9 mm (4.0 in)	42 of 100 (Notable)
Sunnyside	United States	Record high minimum temperature	20.0 C (68.0 F)	42 of 100 (Notable)
Cacapava	Brazil	Record daily precipitation	77.6 mm (3.1 in)	41 of 100 (Notable)
Qu Xian	China	Record daily precipitation	113.1 mm (4.5 in)	41 of 100 (Notable)
Reedsburg Wwtp	United States	Record low maximum temperature	11.7 C (53.1 F)	41 of 100 (Notable)
Deal Island	Australia	Record daily precipitation	25.4 mm (1.0 in)	40 of 100 (Notable)
Aparecida	Brazil	Record daily precipitation	40.8 mm (1.6 in)	40 of 100 (Notable)
Agua Branca	Brazil	Record daily precipitation	67.6 mm (2.7 in)	40 of 100 (Notable)
El Burrero	Mexico	Record low minimum temperature	6.7 C (44.1 F)	40 of 100 (Notable)
P-Ranch South Place	United States	Record daily precipitation	27.9 mm (1.1 in)	40 of 100 (Notable)
Ariah Park Post Office	Australia	Record daily precipitation	30.0 mm (1.2 in)	39 of 100 (Notable)
Fazenda Laranjal	Brazil	Record daily precipitation	50.3 mm (2.0 in)	39 of 100 (Notable)
New Iberia AP - Acadiana Rgnl	United States	Record high maximum temperature	36.1 C (97.0 F)	39 of 100 (Notable)
Lakeview 2 NNW	United States	Record daily precipitation	28.4 mm (1.1 in)	39 of 100 (Notable)
Premaydena Hatchery	Australia	Record daily precipitation	30.4 mm (1.2 in)	38 of 100 (Notable)
Areal (Granja Gabi)	Brazil	Record daily precipitation	28.0 mm (1.1 in)	38 of 100 (Notable)
Tiete	Brazil	Record daily precipitation	55.3 mm (2.2 in)	38 of 100 (Notable)
Araraquara	Brazil	Record daily precipitation	71.0 mm (2.8 in)	38 of 100 (Notable)
Santa Terezinha	Brazil	Record daily precipitation	47.0 mm (1.9 in)	38 of 100 (Notable)
Usina Tres Saltos (Cpfl)	Brazil	Record daily precipitation	57.2 mm (2.3 in)	38 of 100 (Notable)
Wistaria	Canada	Record high minimum temperature	14.5 C (58.1 F)	38 of 100 (Notable)
Deland 1 SSE	United States	Record low maximum temperature	23.9 C (75.0 F)	38 of 100 (Notable)
Everett	United States	Record high maximum temperature	28.9 C (84.0 F)	38 of 100 (Notable)
Lancaster 4 WSW	United States	Record low maximum temperature	12.8 C (55.0 F)	38 of 100 (Notable)
Seattle Urban Site	United States	Record high minimum temperature	15.6 C (60.1 F)	38 of 100 (Notable)
Conservatoria	Brazil	Record daily precipitation	48.3 mm (1.9 in)	37 of 100 (Notable)
Itapira	Brazil	Record daily precipitation	44.5 mm (1.8 in)	37 of 100 (Notable)
Artemis	Brazil	Record daily precipitation	48.0 mm (1.9 in)	37 of 100 (Notable)
Rio Das Pedras	Brazil	Record daily precipitation	57.9 mm (2.3 in)	37 of 100 (Notable)
Windsor	United States	Record low minimum temperature	7.2 C (45.0 F)	37 of 100 (Notable)
Coupeville 1 S	United States	Record high minimum temperature	12.2 C (54.0 F)	37 of 100 (Notable)
Portage Wwtp	United States	Record low maximum temperature	11.1 C (52.0 F)	37 of 100 (Notable)
Cafelandia	Brazil	Record daily precipitation	48.3 mm (1.9 in)	36 of 100 (Notable)
Eugenio Lefevre	Brazil	Record daily precipitation	51.6 mm (2.0 in)	36 of 100 (Notable)
Vernon Coldstream Ranch	Canada	Record high maximum temperature	32.0 C (89.6 F)	36 of 100 (Notable)
Elkader 6 SSW	United States	Record low maximum temperature	14.4 C (57.9 F)	36 of 100 (Notable)
Coldwater St School	United States	Record low maximum temperature	11.1 C (52.0 F)	36 of 100 (Notable)
Ludington 4 SE	United States	Record low maximum temperature	11.7 C (53.1 F)	36 of 100 (Notable)
Jefferson City Wtp	United States	Record low maximum temperature	15.6 C (60.1 F)	36 of 100 (Notable)
Blaine	United States	Record high minimum temperature	13.9 C (57.0 F)	36 of 100 (Notable)
Chilton	United States	Record low maximum temperature	10.0 C (50.0 F)	36 of 100 (Notable)

Counts by Type and Timescale

1,310 records

Records set or tied on 30 May 1983 by type: Highest daily maximum 207, Lowest daily maximum 249, Highest daily minimum 220, Lowest daily minimum 146, Heaviest daily rainfall 483, Heaviest daily snowfall 1, Deepest snow cover 4.

Records on 30 May 1983 by type
Record type	Records
Highest daily maximum	207
Lowest daily maximum	249
Highest daily minimum	220
Lowest daily minimum	146
Heaviest daily rainfall	483
Heaviest daily snowfall	1
Deepest snow cover	4

Records on 30 May 1983 by timescale: all-time 3, monthly 84, daily 1,223.

How Much Records Were Beaten By

1,076 broken records

Margins by which the 1,076 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 280.0. Ties are not counted.

Top 20 by Significance

30 May 1983

Top 20 records on 30 May 1983 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 1983	Olga 2 SE, US	daily rain	35.6 mm (1.4 in)	25.4 mm (1.0 in)	89 years	75 of 100 (Major)
30 May 1983	Zimnegorskij Majak, RU	monthly rain	51.2 mm (2.0 in)	16.8 mm (0.7 in)	40 years	66 of 100 (Major)
30 May 1983	Usugli, RU	daily rain	28.4 mm (1.1 in)	16.4 mm (0.6 in)	34 years	52 of 100 (Notable)
30 May 1983	Sain Alto, MX	daily rain	37.3 mm (1.5 in)	29.4 mm (1.2 in)	25 years	51 of 100 (Notable)
30 May 1983	Fazenda Aterradinho, BR	daily rain	73.2 mm (2.9 in)	49.7 mm (2.0 in)	29 years	50 of 100 (Notable)
30 May 1983	Fredericton Cda, CA	daily rain	51.6 mm (2.0 in)	20.4 mm (0.8 in)	65 years	50 of 100 (Notable)
30 May 1983	Cotonou, BJ	daily rain	112.0 mm (4.4 in)	70.5 mm (2.8 in)	22 years	49 of 100 (Notable)
30 May 1983	Itatiba, BR	daily rain	80.3 mm (3.2 in)	48.3 mm (1.9 in)	13 years	48 of 100 (Notable)
30 May 1983	Rosalia, US	monthly high min	17.8 C (64.0 F)	1.1 C (2.0 F)	85 years	47 of 100 (Notable)
30 May 1983	Cesario Lange, BR	daily rain	52.3 mm (2.1 in)	41.8 mm (1.6 in)	32 years	45 of 100 (Notable)
30 May 1983	Sete Barras, BR	daily rain	69.8 mm (2.7 in)	52.7 mm (2.1 in)	4 years	45 of 100 (Notable)
30 May 1983	Laketown, US	monthly high min	15.0 C (59.0 F)	1.1 C (2.0 F)	82 years	45 of 100 (Notable)
30 May 1983	Olga 2 SE, US	daily high min	12.8 C (55.0 F)	2.2 C (4.0 F)	88 years	45 of 100 (Notable)
30 May 1983	Capivari, BR	daily rain	59.2 mm (2.3 in)	41.4 mm (1.6 in)	4 years	44 of 100 (Notable)
30 May 1983	Tonala (Smn), MX	daily high min	30.0 C (86.0 F)	4.4 C (7.9 F)	46 years	44 of 100 (Notable)
30 May 1983	Cedral, MX	daily low max	18.9 C (66.0 F)	7.8 C (14.0 F)	52 years	44 of 100 (Notable)
30 May 1983	Reboly, RU	monthly rain	30.5 mm (1.2 in)	4.9 mm (0.19 in)	47 years	44 of 100 (Notable)
30 May 1983	Middletown 4 W, US	daily rain	27.7 mm (1.1 in)	4.6 mm (0.18 in)	104 years	44 of 100 (Notable)
30 May 1983	Astolfo Dutra, BR	daily rain	39.2 mm (1.5 in)	27.8 mm (1.1 in)	41 years	43 of 100 (Notable)
30 May 1983	Clube de Regatas, BR	monthly rain	100.9 mm (4.0 in)	28.6 mm (1.1 in)	19 years	42 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 1983

Records set or tied on this calendar date in each year from 1818 to 1983. 1983 had 1,310 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 1983-05-30: 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 50	1,069
50 to 100	4
100 to 150	0
150 to 200	2
200 to 250	0
250 to 300	1