Weather Records on 30 May 1984

2,543 weather records were set or tied worldwide on 30 May 1984. Highest significance: Hightstown 2 W, US.

Key Facts for 30 May 1984

On 30 May 1984, 2,543 weather records were set or tied at long-record stations worldwide.
645 were record highs and 1,427 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 226 monthly and 2,312 daily.
Hightstown 2 W set a daily record precipitation of 75.7 mm (3.0 in) on 30 May 1984.
Across 165 earlier years (1818 to 2026) the same calendar date averaged 426 records.

Record Map

2,000 stations, highest significance shown

2,000 station records on 30 May 1984 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 May 1984: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hightstown 2 W	United States	Record daily precipitation	75.7 mm (3.0 in)	71 of 100 (Major)
Gardiner	United States	Record daily precipitation	77.5 mm (3.1 in)	70 of 100 (Major)
Falls Village	United States	Record daily precipitation	96.0 mm (3.8 in)	69 of 100 (Major)
W Otis	United States	Record daily precipitation	98.0 mm (3.9 in)	69 of 100 (Major)
Glenham	United States	Record daily precipitation	129.5 mm (5.1 in)	69 of 100 (Major)
Fitzwilliam 2 W	United States	Record daily precipitation	97.0 mm (3.8 in)	68 of 100 (Major)
Manchester	United States	Record daily precipitation	72.4 mm (2.9 in)	68 of 100 (Major)
Belchertown	United States	Record daily precipitation	91.4 mm (3.6 in)	65 of 100 (Major)
Cambridge Water Trmt P	United States	Record daily precipitation	101.6 mm (4.0 in)	64 of 100 (Major)
New Salem	United States	Record daily precipitation	104.6 mm (4.1 in)	62 of 100 (Major)
Bethlehem	United States	Record daily precipitation	49.8 mm (2.0 in)	62 of 100 (Major)
Woodstock	United States	Record daily precipitation	73.2 mm (2.9 in)	62 of 100 (Major)
Atlantic City Marina	United States	Record daily precipitation	62.7 mm (2.5 in)	62 of 100 (Major)
Bridgeville 1 NW	United States	Record daily precipitation	107.4 mm (4.2 in)	61 of 100 (Major)
Gila Bend 2SE	United States	Record daily precipitation	47.0 mm (1.9 in)	59 of 100 (Notable)
Petersham 3 N	United States	Record daily precipitation	58.7 mm (2.3 in)	59 of 100 (Notable)
Little Falls	United States	Record daily precipitation	86.9 mm (3.4 in)	59 of 100 (Notable)
Pemberton	United States	Record daily precipitation	72.9 mm (2.9 in)	59 of 100 (Notable)
Smithfield	United States	Record daily precipitation	95.8 mm (3.8 in)	59 of 100 (Notable)
Wilson 3 SW	United States	Record daily precipitation	81.5 mm (3.2 in)	59 of 100 (Notable)
Vienna	United States	Record daily precipitation	140.2 mm (5.5 in)	58 of 100 (Notable)
Tully Lake	United States	Record daily precipitation	83.8 mm (3.3 in)	58 of 100 (Notable)
Ringwood	United States	Record daily precipitation	93.0 mm (3.7 in)	58 of 100 (Notable)
Weinsberg	Germany	Record daily precipitation	42.4 mm (1.7 in)	57 of 100 (Notable)
Aiken 5SE	United States	Record daily precipitation	50.8 mm (2.0 in)	57 of 100 (Notable)
Farmington	United States	Record daily precipitation	59.9 mm (2.4 in)	56 of 100 (Notable)
Millinocket	United States	Record daily precipitation	64.5 mm (2.5 in)	56 of 100 (Notable)
Freehold-Marlboro	United States	Record daily precipitation	78.5 mm (3.1 in)	56 of 100 (Notable)
Quabbin Intake	United States	Record daily precipitation	83.8 mm (3.3 in)	55 of 100 (Notable)
Keene	United States	Record daily precipitation	96.5 mm (3.8 in)	55 of 100 (Notable)
Tuckerton 2 NE	United States	Record daily precipitation	69.6 mm (2.7 in)	55 of 100 (Notable)
Neuse 2 NE	United States	Record daily precipitation	87.1 mm (3.4 in)	55 of 100 (Notable)
South Newbury	United States	Record daily precipitation	49.3 mm (1.9 in)	55 of 100 (Notable)
Lowell	United States	Record daily precipitation	54.1 mm (2.1 in)	54 of 100 (Notable)
Edward Macdowell Lake	United States	Record daily precipitation	94.0 mm (3.7 in)	54 of 100 (Notable)
Birch Hill Dam	United States	Record daily precipitation	83.3 mm (3.3 in)	53 of 100 (Notable)
Somerville 4 NW	United States	Record daily precipitation	56.4 mm (2.2 in)	53 of 100 (Notable)
Conshohocken	United States	Record daily precipitation	77.7 mm (3.1 in)	53 of 100 (Notable)
Norfolk Intl AP	United States	Record daily precipitation	75.2 mm (3.0 in)	53 of 100 (Notable)
Lakehurst AP	United States	Record daily precipitation	82.0 mm (3.2 in)	53 of 100 (Notable)
Royal Oak 2 SSW	United States	Record daily precipitation	84.6 mm (3.3 in)	52 of 100 (Notable)
Lawrence	United States	Record daily precipitation	40.1 mm (1.6 in)	52 of 100 (Notable)
Pelham	United States	Record daily precipitation	87.6 mm (3.4 in)	52 of 100 (Notable)
Belleplain STN Forest	United States	Record daily precipitation	68.6 mm (2.7 in)	52 of 100 (Notable)
Essex Fells Svc Bldg	United States	Record daily precipitation	86.9 mm (3.4 in)	52 of 100 (Notable)
Middle Dam	United States	Record daily precipitation	41.7 mm (1.6 in)	51 of 100 (Notable)
Hardwick	United States	Record daily precipitation	90.4 mm (3.6 in)	51 of 100 (Notable)
New Bern - ASOS	United States	Record daily precipitation	98.8 mm (3.9 in)	51 of 100 (Notable)
Danbury	United States	Record daily precipitation	72.6 mm (2.9 in)	50 of 100 (Notable)
Presque Isle	United States	Record daily precipitation	42.4 mm (1.7 in)	50 of 100 (Notable)
Dixville Notch	United States	Record daily precipitation	48.8 mm (1.9 in)	50 of 100 (Notable)
Cape May 2 NW	United States	Record daily precipitation	67.8 mm (2.7 in)	50 of 100 (Notable)
Tarboro 1 S	United States	Record daily precipitation	65.5 mm (2.6 in)	50 of 100 (Notable)
Doylestown	United States	Record daily precipitation	54.9 mm (2.2 in)	50 of 100 (Notable)
Chelsea	United States	Record daily precipitation	54.9 mm (2.2 in)	50 of 100 (Notable)
Cherry Point MCAS	United States	Record daily precipitation	102.9 mm (4.1 in)	50 of 100 (Notable)
Santiago Tuxtla	Mexico	Record daily precipitation	82.6 mm (3.3 in)	49 of 100 (Notable)
Torrington	United States	Record daily precipitation	102.6 mm (4.0 in)	49 of 100 (Notable)
Denton 2 E	United States	Record daily precipitation	82.3 mm (3.2 in)	49 of 100 (Notable)
Plainfield	United States	Record daily precipitation	91.4 mm (3.6 in)	49 of 100 (Notable)

Counts by Type and Timescale

2,543 records

Records set or tied on 30 May 1984 by type: Highest daily maximum 344, Lowest daily maximum 771, Highest daily minimum 301, Lowest daily minimum 656, Heaviest daily rainfall 471.

Records on 30 May 1984 by type
Record type	Records
Highest daily maximum	344
Lowest daily maximum	771
Highest daily minimum	301
Lowest daily minimum	656
Heaviest daily rainfall	471
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 May 1984 by timescale: all-time 5, monthly 226, daily 2,312.

How Much Records Were Beaten By

2,101 broken records

Margins by which the 2,101 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 81.8. Ties are not counted.

Top 20 by Significance

30 May 1984

Top 20 records on 30 May 1984 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 1984	Hightstown 2 W, US	daily rain	75.7 mm (3.0 in)	51.3 mm (2.0 in)	76 years	71 of 100 (Major)
30 May 1984	Gardiner, US	daily rain	77.5 mm (3.1 in)	42.2 mm (1.7 in)	72 years	70 of 100 (Major)
30 May 1984	Falls Village, US	monthly rain	96.0 mm (3.8 in)	30.5 mm (1.2 in)	62 years	69 of 100 (Major)
30 May 1984	W Otis, US	monthly rain	98.0 mm (3.9 in)	41.9 mm (1.6 in)	47 years	69 of 100 (Major)
30 May 1984	Glenham, US	monthly rain	129.5 mm (5.1 in)	57.9 mm (2.3 in)	47 years	69 of 100 (Major)
30 May 1984	Fitzwilliam 2 W, US	monthly rain	97.0 mm (3.8 in)	46.2 mm (1.8 in)	43 years	68 of 100 (Major)
30 May 1984	Manchester, US	monthly rain	72.4 mm (2.9 in)	20.8 mm (0.8 in)	78 years	68 of 100 (Major)
30 May 1984	Belchertown, US	monthly rain	91.4 mm (3.6 in)	38.3 mm (1.5 in)	38 years	65 of 100 (Major)
30 May 1984	Cambridge Water Trmt P, US	monthly rain	101.6 mm (4.0 in)	24.4 mm (1.0 in)	78 years	64 of 100 (Major)
30 May 1984	New Salem, US	monthly rain	104.6 mm (4.1 in)	53.5 mm (2.1 in)	14 years	62 of 100 (Major)
30 May 1984	Bethlehem, US	daily rain	49.8 mm (2.0 in)	25.9 mm (1.0 in)	72 years	62 of 100 (Major)
30 May 1984	Woodstock, US	daily rain	73.2 mm (2.9 in)	31.5 mm (1.2 in)	76 years	62 of 100 (Major)
30 May 1984	Atlantic City Marina, US	daily rain	62.7 mm (2.5 in)	26.9 mm (1.1 in)	76 years	62 of 100 (Major)
30 May 1984	Bridgeville 1 NW, US	monthly rain	107.4 mm (4.2 in)	18.8 mm (0.7 in)	88 years	61 of 100 (Major)
30 May 1984	Gila Bend 2SE, US	monthly rain	47.0 mm (1.9 in)	15.2 mm (0.6 in)	54 years	59 of 100 (Notable)
30 May 1984	Petersham 3 N, US	daily rain	58.7 mm (2.3 in)	33.3 mm (1.3 in)	67 years	59 of 100 (Notable)
30 May 1984	Little Falls, US	daily rain	86.9 mm (3.4 in)	35.3 mm (1.4 in)	76 years	59 of 100 (Notable)
30 May 1984	Pemberton, US	daily rain	72.9 mm (2.9 in)	46.2 mm (1.8 in)	37 years	59 of 100 (Notable)
30 May 1984	Smithfield, US	daily rain	95.8 mm (3.8 in)	62.8 mm (2.5 in)	34 years	59 of 100 (Notable)
30 May 1984	Wilson 3 SW, US	daily rain	81.5 mm (3.2 in)	59.1 mm (2.3 in)	44 years	59 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 1984

Records set or tied on this calendar date in each year from 1818 to 1984. 1984 had 2,543 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 1984-05-30: 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	1,944
20 to 40	118
40 to 60	29
60 to 80	9
80 to 100	1