Weather Records on 30 May 1987

1,021 weather records were set or tied worldwide on 30 May 1987. Highest significance: Mt Clemens Ang Base, US.

Key Facts for 30 May 1987

On 30 May 1987, 1,021 weather records were set or tied at long-record stations worldwide.
628 were record highs and 218 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 109 monthly and 912 daily.
Mt Clemens Ang Base set a daily record precipitation of 62.0 mm (2.4 in) on 30 May 1987.
Across 165 earlier years (1818 to 2026) the same calendar date averaged 435 records.

Record Map

1,021 stations

1,021 station records on 30 May 1987 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 May 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mt Clemens Ang Base	United States	Record daily precipitation	62.0 mm (2.4 in)	59 of 100 (Notable)
Elma	United States	Record daily precipitation	33.5 mm (1.3 in)	58 of 100 (Notable)
Soledad de Doblado	Mexico	Record daily precipitation	119.9 mm (4.7 in)	55 of 100 (Notable)
Atlantic City Marina	United States	Record high minimum temperature	22.8 C (73.0 F)	52 of 100 (Notable)
Cape May 2 NW	United States	Record high maximum temperature	34.4 C (93.9 F)	48 of 100 (Notable)
New Bedford Coop	United States	Record high maximum temperature	36.1 C (97.0 F)	47 of 100 (Notable)
Wauseon Wtp	United States	Record high minimum temperature	21.7 C (71.1 F)	47 of 100 (Notable)
Aberdeen 20NNE	United States	Record daily precipitation	71.6 mm (2.8 in)	47 of 100 (Notable)
Kalacinsk	Russia	Record daily precipitation	26.7 mm (1.1 in)	46 of 100 (Notable)
Omsk	Russia	Record daily precipitation	27.5 mm (1.1 in)	46 of 100 (Notable)
Long Branch-Oakhurst	United States	Record high minimum temperature	26.1 C (79.0 F)	46 of 100 (Notable)
Moorestown 4 E	United States	Record high minimum temperature	23.9 C (75.0 F)	45 of 100 (Notable)
Crossville Mem AP	United States	Record daily precipitation	69.1 mm (2.7 in)	44 of 100 (Notable)
Niles	United States	Record daily precipitation	62.0 mm (2.4 in)	43 of 100 (Notable)
Pontiac Wwtp	United States	Record high minimum temperature	22.2 C (72.0 F)	43 of 100 (Notable)
Andrews	United States	Record daily precipitation	47.2 mm (1.9 in)	43 of 100 (Notable)
Wessington Springs	United States	Record daily precipitation	72.4 mm (2.9 in)	41 of 100 (Notable)
Blanco	United States	Record low maximum temperature	20.6 C (69.1 F)	41 of 100 (Notable)
Clearbrook	United States	Record daily precipitation	31.5 mm (1.2 in)	41 of 100 (Notable)
Forks 1 E	United States	Record daily precipitation	57.4 mm (2.3 in)	41 of 100 (Notable)
Puyallup 2 W Exp STN	United States	Record daily precipitation	30.0 mm (1.2 in)	41 of 100 (Notable)
Quilcene 2 SW	United States	Record daily precipitation	32.3 mm (1.3 in)	41 of 100 (Notable)
Griffiss AFB	United States	Record high maximum temperature	33.9 C (93.0 F)	41 of 100 (Notable)
Harper 3ENE	United States	Record daily precipitation	54.6 mm (2.1 in)	40 of 100 (Notable)
Philadelphia City	United States	Record high maximum temperature	36.1 C (97.0 F)	40 of 100 (Notable)
Seattle Tacoma AP	United States	Record daily precipitation	26.9 mm (1.1 in)	40 of 100 (Notable)
Huetamo	Mexico	Record high maximum temperature	48.3 C (118.9 F)	39 of 100 (Notable)
Magadan	Russia	Record daily precipitation	27.4 mm (1.1 in)	39 of 100 (Notable)
Pocahontas 1	United States	Record daily precipitation	50.8 mm (2.0 in)	39 of 100 (Notable)
Dover	United States	Record high maximum temperature	35.6 C (96.1 F)	39 of 100 (Notable)
Osceola	United States	Record daily precipitation	33.0 mm (1.3 in)	39 of 100 (Notable)
Hastings	United States	Record high minimum temperature	21.7 C (71.1 F)	39 of 100 (Notable)
Plainfield	United States	Record high maximum temperature	36.1 C (97.0 F)	39 of 100 (Notable)
Upper Sandusky	United States	Record high minimum temperature	21.7 C (71.1 F)	39 of 100 (Notable)
Llano	United States	Record low maximum temperature	20.6 C (69.1 F)	39 of 100 (Notable)
Shelton	United States	Record daily precipitation	33.5 mm (1.3 in)	39 of 100 (Notable)
Cooperstown	United States	Record high maximum temperature	31.7 C (89.1 F)	38 of 100 (Notable)
Turnu Magurele	Romania	Record low minimum temperature	0.6 C (33.1 F)	37 of 100 (Notable)
Denton 2 E	United States	Record high maximum temperature	36.1 C (97.0 F)	37 of 100 (Notable)
First Connecticut Lake	United States	Record high minimum temperature	15.6 C (60.1 F)	37 of 100 (Notable)
Lamesa 1 SSE	United States	Record daily precipitation	53.8 mm (2.1 in)	37 of 100 (Notable)
San Saba	United States	Record low maximum temperature	20.6 C (69.1 F)	37 of 100 (Notable)
Creston	United States	Record high minimum temperature	21.1 C (70.0 F)	37 of 100 (Notable)
Elatma	Russia	Record low minimum temperature	-0.6 C (30.9 F)	36 of 100 (Notable)
Tuckerton 2 NE	United States	Record high minimum temperature	20.0 C (68.0 F)	36 of 100 (Notable)
Put-In-Bay	United States	Record high minimum temperature	22.8 C (73.0 F)	36 of 100 (Notable)
Valentine 10 WSW	United States	Record daily precipitation	50.8 mm (2.0 in)	36 of 100 (Notable)
Naselle 2 ENE	United States	Record daily precipitation	53.8 mm (2.1 in)	36 of 100 (Notable)
Dushanbe	Tajikistan	Record high minimum temperature	22.0 C (71.6 F)	35 of 100 (Notable)
Greenwood	United States	Record daily precipitation	58.2 mm (2.3 in)	35 of 100 (Notable)
Detour Village	United States	Record high minimum temperature	13.3 C (55.9 F)	35 of 100 (Notable)
W Branch 3SE	United States	Record high minimum temperature	16.7 C (62.1 F)	35 of 100 (Notable)
Burnet	United States	Record low maximum temperature	18.9 C (66.0 F)	35 of 100 (Notable)
Hunt 3 SW	United States	Record daily precipitation	69.9 mm (2.8 in)	35 of 100 (Notable)
Marathon	United States	Record low maximum temperature	23.3 C (73.9 F)	35 of 100 (Notable)
Boulia Airport	Australia	Record low minimum temperature	3.5 C (38.3 F)	34 of 100 (Routine)
Rio Piracicaba	Brazil	Record daily precipitation	34.0 mm (1.3 in)	34 of 100 (Routine)
Milford 2 SE	United States	Record high minimum temperature	21.1 C (70.0 F)	34 of 100 (Routine)
Lake Placid 2 S	United States	Record high minimum temperature	18.9 C (66.0 F)	34 of 100 (Routine)
Hebbronville	United States	Record daily precipitation	60.2 mm (2.4 in)	34 of 100 (Routine)

Counts by Type and Timescale

1,021 records

Records set or tied on 30 May 1987 by type: Highest daily maximum 290, Lowest daily maximum 119, Highest daily minimum 338, Lowest daily minimum 99, Heaviest daily rainfall 173, Deepest snow cover 2.

Records on 30 May 1987 by type
Record type	Records
Highest daily maximum	290
Lowest daily maximum	119
Highest daily minimum	338
Lowest daily minimum	99
Heaviest daily rainfall	173
Heaviest daily snowfall	0
Deepest snow cover	2

Records on 30 May 1987 by timescale: all-time 0, monthly 109, daily 912.

How Much Records Were Beaten By

704 broken records

Margins by which the 704 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 140.0. Ties are not counted.

Top 20 by Significance

30 May 1987

Top 20 records on 30 May 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 1987	Mt Clemens Ang Base, US	daily rain	62.0 mm (2.4 in)	23.9 mm (0.9 in)	82 years	59 of 100 (Notable)
30 May 1987	Elma, US	daily rain	33.5 mm (1.3 in)	24.4 mm (1.0 in)	32 years	58 of 100 (Notable)
30 May 1987	Soledad de Doblado, MX	daily rain	119.9 mm (4.7 in)	104.4 mm (4.1 in)	30 years	55 of 100 (Notable)
30 May 1987	Atlantic City Marina, US	monthly high min	22.8 C (73.0 F)	1.7 C (3.1 F)	91 years	52 of 100 (Notable)
30 May 1987	Cape May 2 NW, US	monthly high max	34.4 C (93.9 F)	0.5 C (0.9 F)	91 years	48 of 100 (Notable)
30 May 1987	New Bedford Coop, US	monthly high max	36.1 C (97.0 F)	0.5 C (0.9 F)	91 years	47 of 100 (Notable)
30 May 1987	Wauseon Wtp, US	monthly high min	21.7 C (71.1 F)	0.6 C (1.1 F)	91 years	47 of 100 (Notable)
30 May 1987	Aberdeen 20NNE, US	daily rain	71.6 mm (2.8 in)	42.4 mm (1.7 in)	26 years	47 of 100 (Notable)
30 May 1987	Kalacinsk, RU	daily rain	26.7 mm (1.1 in)	21.2 mm (0.8 in)	4 years	46 of 100 (Notable)
30 May 1987	Omsk, RU	daily rain	27.5 mm (1.1 in)	15.3 mm (0.6 in)	4 years	46 of 100 (Notable)
30 May 1987	Long Branch-Oakhurst, US	monthly high min	26.1 C (79.0 F)	4.4 C (7.9 F)	57 years	46 of 100 (Notable)
30 May 1987	Moorestown 4 E, US	daily high min	23.9 C (75.0 F)	4.5 C (8.1 F)	88 years	45 of 100 (Notable)
30 May 1987	Crossville Mem AP, US	daily rain	69.1 mm (2.7 in)	51.6 mm (2.0 in)	20 years	44 of 100 (Notable)
30 May 1987	Niles, US	daily rain	62.0 mm (2.4 in)	30.0 mm (1.2 in)	44 years	43 of 100 (Notable)
30 May 1987	Pontiac Wwtp, US	monthly high min	22.2 C (72.0 F)	1.1 C (2.0 F)	76 years	43 of 100 (Notable)
30 May 1987	Andrews, US	daily rain	47.2 mm (1.9 in)	20.3 mm (0.8 in)	64 years	43 of 100 (Notable)
30 May 1987	Wessington Springs, US	daily rain	72.4 mm (2.9 in)	31.5 mm (1.2 in)	25 years	41 of 100 (Notable)
30 May 1987	Blanco, US	daily low max	20.6 C (69.1 F)	3.3 C (5.9 F)	80 years	41 of 100 (Notable)
30 May 1987	Clearbrook, US	daily rain	31.5 mm (1.2 in)	7.9 mm (0.31 in)	77 years	41 of 100 (Notable)
30 May 1987	Forks 1 E, US	daily rain	57.4 mm (2.3 in)	27.7 mm (1.1 in)	26 years	41 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 1987

Records set or tied on this calendar date in each year from 1818 to 1987. 1987 had 1,021 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 1987-05-30: 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	676
20 to 40	20
40 to 60	6
60 to 80	0
80 to 100	0
100 to 120	1
120 to 140	1