Weather Records on 30 May 2018

1,319 weather records were set or tied worldwide on 30 May 2018. Highest significance: Highlands, US.

Key Facts for 30 May 2018

On 30 May 2018, 1,319 weather records were set or tied at long-record stations worldwide.
1,077 were record highs and 67 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 185 monthly and 1,133 daily.
Highlands set a daily record precipitation of 151.6 mm (6.0 in) on 30 May 2018.
Across 165 earlier years (1818 to 2026) the same calendar date averaged 433 records.

Record Map

1,319 stations

1,319 station records on 30 May 2018 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 May 2018: highest significance records shown on the map
Station	Country	Type	Value	Significance
Highlands	United States	Record daily precipitation	151.6 mm (6.0 in)	80 of 100 (Exceptional)
Troicko-Pecherskoe	Russia	Record daily precipitation	30.8 mm (1.2 in)	61 of 100 (Major)
Fayette	United States	Record daily precipitation	78.5 mm (3.1 in)	61 of 100 (Major)
Rockford 3 ESE	United States	Record daily precipitation	116.8 mm (4.6 in)	56 of 100 (Notable)
Charlottesville Albemarle AP	United States	Record daily precipitation	84.8 mm (3.3 in)	56 of 100 (Notable)
Vestervig	Denmark	Record high minimum temperature	17.7 C (63.9 F)	55 of 100 (Notable)
Hohenwald	United States	Record daily precipitation	66.5 mm (2.6 in)	54 of 100 (Notable)
Newcastle	United States	Record daily precipitation	45.7 mm (1.8 in)	53 of 100 (Notable)
Karlshamn	Sweden	Record high maximum temperature	29.0 C (84.2 F)	52 of 100 (Notable)
Uppsala_Aut	Sweden	Record high minimum temperature	17.0 C (62.6 F)	52 of 100 (Notable)
Russellville #2	United States	Record daily precipitation	109.2 mm (4.3 in)	51 of 100 (Notable)
Rochester	United States	Record high minimum temperature	22.2 C (72.0 F)	51 of 100 (Notable)
Jocassee 8 WNW	United States	Record daily precipitation	71.1 mm (2.8 in)	51 of 100 (Notable)
Xichang	China	Record daily precipitation	67.6 mm (2.7 in)	49 of 100 (Notable)
Helen	United States	Record daily precipitation	147.6 mm (5.8 in)	49 of 100 (Notable)
Paulding	United States	Record high minimum temperature	22.2 C (72.0 F)	49 of 100 (Notable)
Coweeta Exp STN	United States	Record daily precipitation	74.9 mm (2.9 in)	48 of 100 (Notable)
Ashland Exp Farm	United States	Record daily precipitation	60.5 mm (2.4 in)	48 of 100 (Notable)
Buchholz In der Nordheide	Germany	Record daily precipitation	27.4 mm (1.1 in)	47 of 100 (Notable)
Marion	United States	Record daily precipitation	74.9 mm (2.9 in)	47 of 100 (Notable)
Ust-Kulom	Russia	Record daily precipitation	29.0 mm (1.1 in)	46 of 100 (Notable)
Winston Salem Reynolds AP	United States	Record high minimum temperature	22.2 C (72.0 F)	46 of 100 (Notable)
Gottingen	Germany	Record high minimum temperature	16.7 C (62.1 F)	45 of 100 (Notable)
Beloit	United States	Record daily precipitation	76.2 mm (3.0 in)	45 of 100 (Notable)
Dyersburg	United States	Record daily precipitation	52.1 mm (2.1 in)	45 of 100 (Notable)
Den Helder-1	Netherlands	Record high minimum temperature	17.0 C (62.6 F)	44 of 100 (Notable)
Oakland 1 SE	United States	Record high minimum temperature	17.8 C (64.0 F)	44 of 100 (Notable)
Ft Wayne Intl AP	United States	Record high minimum temperature	23.3 C (73.9 F)	44 of 100 (Notable)
Winamac 2SSE	United States	Record high minimum temperature	23.3 C (73.9 F)	43 of 100 (Notable)
Huntingdon Wtp	United States	Record daily precipitation	71.1 mm (2.8 in)	43 of 100 (Notable)
Lexington	United States	Record daily precipitation	96.5 mm (3.8 in)	43 of 100 (Notable)
Marion Forks	United States	Record low minimum temperature	-11.0 C (12.2 F)	43 of 100 (Notable)
Zhijiang	China	Record daily precipitation	104.9 mm (4.1 in)	42 of 100 (Notable)
Berlin-Dahlem	Germany	Record high maximum temperature	32.4 C (90.3 F)	42 of 100 (Notable)
Dresden-Strehlen	Germany	Record high minimum temperature	18.3 C (64.9 F)	42 of 100 (Notable)
Allerton	United States	Record high maximum temperature	33.3 C (91.9 F)	42 of 100 (Notable)
McPherson	United States	Record daily precipitation	60.2 mm (2.4 in)	42 of 100 (Notable)
Mina	United States	Record high minimum temperature	20.0 C (68.0 F)	42 of 100 (Notable)
Cullowhee	United States	Record high minimum temperature	19.4 C (66.9 F)	42 of 100 (Notable)
Lumberton	United States	Record high minimum temperature	22.8 C (73.0 F)	42 of 100 (Notable)
Ashland	United States	Record high minimum temperature	22.2 C (72.0 F)	42 of 100 (Notable)
Burkes Garden	United States	Record high minimum temperature	17.2 C (63.0 F)	42 of 100 (Notable)
Hot Springs	United States	Record high minimum temperature	17.8 C (64.0 F)	42 of 100 (Notable)
Bremen-Seefahrtschule	Germany	Record high minimum temperature	17.7 C (63.9 F)	41 of 100 (Notable)
Cottbus	Germany	Record high minimum temperature	17.5 C (63.5 F)	41 of 100 (Notable)
Leipzig-Holzhausen	Germany	Record daily precipitation	43.1 mm (1.7 in)	41 of 100 (Notable)
Eelde	Netherlands	Record high minimum temperature	16.1 C (61.0 F)	41 of 100 (Notable)
Faerder Fyr	Norway	Record high maximum temperature	26.0 C (78.8 F)	41 of 100 (Notable)
Elberton 2 N	United States	Record high minimum temperature	21.7 C (71.1 F)	41 of 100 (Notable)
Washta	United States	Record high maximum temperature	36.7 C (98.1 F)	41 of 100 (Notable)
St Charles Elm Pt	United States	Record high minimum temperature	22.2 C (72.0 F)	41 of 100 (Notable)
Edenton	United States	Record high minimum temperature	22.8 C (73.0 F)	41 of 100 (Notable)
Hendersonville 1 NE	United States	Record daily precipitation	49.0 mm (1.9 in)	41 of 100 (Notable)
Clemson UNIV	United States	Record high minimum temperature	21.7 C (71.1 F)	41 of 100 (Notable)
Laurens	United States	Record daily precipitation	52.3 mm (2.1 in)	41 of 100 (Notable)
Union City	United States	Record daily precipitation	32.5 mm (1.3 in)	41 of 100 (Notable)
Greenville Kgvl Radio	United States	Record high maximum temperature	37.2 C (99.0 F)	41 of 100 (Notable)
Oconomowoc Wwtp	United States	Record high minimum temperature	20.6 C (69.1 F)	41 of 100 (Notable)
Turany	Czech Republic	Record high minimum temperature	17.9 C (64.2 F)	40 of 100 (Notable)
West Souburg	Netherlands	Record high minimum temperature	15.6 C (60.1 F)	40 of 100 (Notable)

Counts by Type and Timescale

1,319 records

Records set or tied on 30 May 2018 by type: Highest daily maximum 378, Lowest daily maximum 30, Highest daily minimum 699, Lowest daily minimum 37, Heaviest daily rainfall 174, Deepest snow cover 1.

Records on 30 May 2018 by type
Record type	Records
Highest daily maximum	378
Lowest daily maximum	30
Highest daily minimum	699
Lowest daily minimum	37
Heaviest daily rainfall	174
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 30 May 2018 by timescale: all-time 1, monthly 185, daily 1,133.

How Much Records Were Beaten By

986 broken records

Margins by which the 986 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 116.0. Ties are not counted.

Top 20 by Significance

30 May 2018

Top 20 records on 30 May 2018 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 2018	Highlands, US	daily rain	151.6 mm (6.0 in)	116.0 mm (4.6 in)	115 years	80 of 100 (Exceptional)
30 May 2018	Troicko-Pecherskoe, RU	daily rain	30.8 mm (1.2 in)	9.9 mm (0.39 in)	104 years	61 of 100 (Major)
30 May 2018	Fayette, US	daily rain	78.5 mm (3.1 in)	36.6 mm (1.4 in)	93 years	61 of 100 (Major)
30 May 2018	Rockford 3 ESE, US	daily rain	116.8 mm (4.6 in)	55.8 mm (2.2 in)	59 years	56 of 100 (Notable)
30 May 2018	Charlottesville Albemarle AP, US	daily rain	84.8 mm (3.3 in)	42.6 mm (1.7 in)	47 years	56 of 100 (Notable)
30 May 2018	Vestervig, DK	monthly high min	17.7 C (63.9 F)	1.5 C (2.7 F)	128 years	55 of 100 (Notable)
30 May 2018	Hohenwald, US	daily rain	66.5 mm (2.6 in)	21.3 mm (0.8 in)	115 years	54 of 100 (Notable)
30 May 2018	Newcastle, US	daily rain	45.7 mm (1.8 in)	17.3 mm (0.7 in)	72 years	53 of 100 (Notable)
30 May 2018	Karlshamn, SE	monthly high max	29.0 C (84.2 F)	1.0 C (1.8 F)	136 years	52 of 100 (Notable)
30 May 2018	Uppsala_Aut, SE	monthly high min	17.0 C (62.6 F)	1.0 C (1.8 F)	176 years	52 of 100 (Notable)
30 May 2018	Russellville #2, US	daily rain	109.2 mm (4.3 in)	77.4 mm (3.0 in)	20 years	51 of 100 (Notable)
30 May 2018	Rochester, US	monthly high min	22.2 C (72.0 F)	0.5 C (0.9 F)	107 years	51 of 100 (Notable)
30 May 2018	Jocassee 8 WNW, US	daily rain	71.1 mm (2.8 in)	42.1 mm (1.7 in)	68 years	51 of 100 (Notable)
30 May 2018	Xichang, CN	monthly rain	67.6 mm (2.7 in)	16.9 mm (0.7 in)	40 years	49 of 100 (Notable)
30 May 2018	Helen, US	monthly rain	147.6 mm (5.8 in)	33.3 mm (1.3 in)	45 years	49 of 100 (Notable)
30 May 2018	Paulding, US	monthly high min	22.2 C (72.0 F)	1.1 C (2.0 F)	93 years	49 of 100 (Notable)
30 May 2018	Coweeta Exp STN, US	daily rain	74.9 mm (2.9 in)	53.1 mm (2.1 in)	27 years	48 of 100 (Notable)
30 May 2018	Ashland Exp Farm, US	daily rain	60.5 mm (2.4 in)	8.4 mm (0.33 in)	108 years	48 of 100 (Notable)
30 May 2018	Buchholz In der Nordheide, DE	daily rain	27.4 mm (1.1 in)	18.4 mm (0.7 in)	24 years	47 of 100 (Notable)
30 May 2018	Marion, US	daily rain	74.9 mm (2.9 in)	12.4 mm (0.5 in)	113 years	47 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 2018

Records set or tied on this calendar date in each year from 1818 to 2018. 2018 had 1,319 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 2018-05-30: 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	949
20 to 40	27
40 to 60	8
60 to 80	1
80 to 100	0
100 to 120	1