Weather Records on 27 May 2018

1,355 weather records were set or tied worldwide on 27 May 2018. Highest significance: Freehold-Marlboro, US.

Key Facts for 27 May 2018

On 27 May 2018, 1,355 weather records were set or tied at long-record stations worldwide.
1,168 were record highs and 63 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 108 monthly and 1,246 daily.
Freehold-Marlboro set a daily record precipitation of 90.2 mm (3.6 in) on 27 May 2018.
Across 164 earlier years (1797 to 2026) the same calendar date averaged 412 records.

Record Map

1,355 stations

1,355 station records on 27 May 2018 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 May 2018: highest significance records shown on the map
Station	Country	Type	Value	Significance
Freehold-Marlboro	United States	Record daily precipitation	90.2 mm (3.6 in)	71 of 100 (Major)
Phoenixville 1 E	United States	Record daily precipitation	72.4 mm (2.9 in)	63 of 100 (Major)
Kall-Sistig	Germany	Record daily precipitation	53.7 mm (2.1 in)	60 of 100 (Major)
Nizamabad	India	Record daily precipitation	56.9 mm (2.2 in)	57 of 100 (Notable)
Cape May 2 NW	United States	Record daily precipitation	54.4 mm (2.1 in)	53 of 100 (Notable)
Hightstown 2 W	United States	Record daily precipitation	81.5 mm (3.2 in)	51 of 100 (Notable)
Kaiserslautern	Germany	Record daily precipitation	34.0 mm (1.3 in)	50 of 100 (Notable)
Wiggins	United States	Record daily precipitation	90.2 mm (3.6 in)	50 of 100 (Notable)
Custer	United States	Record daily precipitation	47.0 mm (1.9 in)	49 of 100 (Notable)
Chugwater	United States	Record high minimum temperature	15.6 C (60.1 F)	48 of 100 (Notable)
Horton	United States	Record high maximum temperature	36.7 C (98.1 F)	47 of 100 (Notable)
Tazewell	United States	Record daily precipitation	71.1 mm (2.8 in)	47 of 100 (Notable)
Laucala Bay	Fiji	Record daily precipitation	215.0 mm (8.5 in)	45 of 100 (Notable)
Ovezande	Netherlands	Record daily precipitation	40.3 mm (1.6 in)	45 of 100 (Notable)
Leroy 5 WSW	United States	Record high minimum temperature	15.6 C (60.1 F)	45 of 100 (Notable)
Atlantic 1 NE	United States	Record high maximum temperature	37.8 C (100.0 F)	45 of 100 (Notable)
Greenfield	United States	Record high maximum temperature	36.1 C (97.0 F)	45 of 100 (Notable)
Spirit Lake	United States	Record high maximum temperature	35.6 C (96.1 F)	45 of 100 (Notable)
Williamsport	United States	Record daily precipitation	39.1 mm (1.5 in)	45 of 100 (Notable)
West Souburg	Netherlands	Record high minimum temperature	17.8 C (64.0 F)	44 of 100 (Notable)
Paradise	United States	Record high maximum temperature	33.9 C (93.0 F)	44 of 100 (Notable)
Allerton	United States	Record high maximum temperature	33.9 C (93.0 F)	44 of 100 (Notable)
Clarinda	United States	Record high maximum temperature	36.7 C (98.1 F)	44 of 100 (Notable)
Spencer 1 N	United States	Record high maximum temperature	38.3 C (100.9 F)	44 of 100 (Notable)
Houghton Lake 6 WSW	United States	Record daily precipitation	29.7 mm (1.2 in)	44 of 100 (Notable)
Kirksville	United States	Record high maximum temperature	35.6 C (96.1 F)	44 of 100 (Notable)
Owl Creek	United States	Record daily precipitation	30.5 mm (1.2 in)	44 of 100 (Notable)
Dhubri	India	Record daily precipitation	135.9 mm (5.4 in)	43 of 100 (Notable)
Knoxville	United States	Record high maximum temperature	34.4 C (93.9 F)	43 of 100 (Notable)
Marshalltown	United States	Record high maximum temperature	35.0 C (95.0 F)	43 of 100 (Notable)
Mt Ayr	United States	Record high maximum temperature	33.9 C (93.0 F)	43 of 100 (Notable)
Sibley	United States	Record high maximum temperature	36.1 C (97.0 F)	43 of 100 (Notable)
Manhattan	United States	Record high maximum temperature	37.2 C (99.0 F)	43 of 100 (Notable)
Princeton	United States	Record high maximum temperature	33.9 C (93.0 F)	43 of 100 (Notable)
Greeley	United States	Record high maximum temperature	36.1 C (97.0 F)	43 of 100 (Notable)
Jefferson 2 E	United States	Record daily precipitation	76.2 mm (3.0 in)	43 of 100 (Notable)
Vermillion 2 SE	United States	Record high maximum temperature	35.6 C (96.1 F)	43 of 100 (Notable)
Genoa Dam 8	United States	Record high maximum temperature	35.6 C (96.1 F)	43 of 100 (Notable)
Hayward Rs	United States	Record high maximum temperature	33.3 C (91.9 F)	43 of 100 (Notable)
Burlington Muni AP	United States	Record high maximum temperature	36.7 C (98.1 F)	43 of 100 (Notable)
Springfield Abraham Lincoln Ca	United States	Record high maximum temperature	36.1 C (97.0 F)	43 of 100 (Notable)
San Simon	United States	Record low minimum temperature	3.3 C (37.9 F)	42 of 100 (Notable)
Naples	United States	Record low maximum temperature	26.1 C (79.0 F)	42 of 100 (Notable)
Algona	United States	Record high maximum temperature	35.0 C (95.0 F)	42 of 100 (Notable)
Allerton	United States	Record high minimum temperature	20.0 C (68.0 F)	42 of 100 (Notable)
Centerville	United States	Record high maximum temperature	35.0 C (95.0 F)	42 of 100 (Notable)
Grinnell 3 SW	United States	Record high maximum temperature	33.9 C (93.0 F)	42 of 100 (Notable)
Postville	United States	Record high maximum temperature	32.2 C (90.0 F)	42 of 100 (Notable)
Lawrence	United States	Record high maximum temperature	33.3 C (91.9 F)	42 of 100 (Notable)
Loup City	United States	Record high maximum temperature	36.1 C (97.0 F)	42 of 100 (Notable)
W Pt	United States	Record high maximum temperature	36.1 C (97.0 F)	42 of 100 (Notable)
McDermitt	United States	Record daily precipitation	28.4 mm (1.1 in)	42 of 100 (Notable)
Mc Henry 3W	United States	Record high minimum temperature	17.8 C (64.0 F)	42 of 100 (Notable)
Balmorhea	United States	Record high minimum temperature	25.6 C (78.1 F)	42 of 100 (Notable)
Rhinelander	United States	Record high maximum temperature	32.8 C (91.0 F)	42 of 100 (Notable)
Basin	United States	Record high minimum temperature	17.2 C (63.0 F)	42 of 100 (Notable)
Watertown Rgnl AP	United States	Record high maximum temperature	35.6 C (96.1 F)	42 of 100 (Notable)
Natural Brg	United States	Record low minimum temperature	3.3 C (37.9 F)	41 of 100 (Notable)
Georgetown	United States	Record high maximum temperature	25.0 C (77.0 F)	41 of 100 (Notable)
Rocky Ford 2 SE	United States	Record high minimum temperature	18.9 C (66.0 F)	41 of 100 (Notable)

Counts by Type and Timescale

1,355 records

Records set or tied on 27 May 2018 by type: Highest daily maximum 607, Lowest daily maximum 37, Highest daily minimum 561, Lowest daily minimum 26, Heaviest daily rainfall 124.

Records on 27 May 2018 by type
Record type	Records
Highest daily maximum	607
Lowest daily maximum	37
Highest daily minimum	561
Lowest daily minimum	26
Heaviest daily rainfall	124
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 27 May 2018 by timescale: all-time 1, monthly 108, daily 1,246.

How Much Records Were Beaten By

1,025 broken records

Margins by which the 1,025 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 187.6. Ties are not counted.

Top 20 by Significance

27 May 2018

Top 20 records on 27 May 2018 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 May 2018	Freehold-Marlboro, US	daily rain	90.2 mm (3.6 in)	53.9 mm (2.1 in)	72 years	71 of 100 (Major)
27 May 2018	Phoenixville 1 E, US	daily rain	72.4 mm (2.9 in)	35.1 mm (1.4 in)	72 years	63 of 100 (Major)
27 May 2018	Kall-Sistig, DE	daily rain	53.7 mm (2.1 in)	27.7 mm (1.1 in)	45 years	60 of 100 (Major)
27 May 2018	Nizamabad, IN	daily rain	56.9 mm (2.2 in)	18.8 mm (0.7 in)	100 years	57 of 100 (Notable)
27 May 2018	Cape May 2 NW, US	daily rain	54.4 mm (2.1 in)	13.8 mm (0.5 in)	108 years	53 of 100 (Notable)
27 May 2018	Hightstown 2 W, US	daily rain	81.5 mm (3.2 in)	44.4 mm (1.7 in)	15 years	51 of 100 (Notable)
27 May 2018	Kaiserslautern, DE	daily rain	34.0 mm (1.3 in)	14.5 mm (0.6 in)	52 years	50 of 100 (Notable)
27 May 2018	Wiggins, US	daily rain	90.2 mm (3.6 in)	62.3 mm (2.5 in)	41 years	50 of 100 (Notable)
27 May 2018	Custer, US	daily rain	47.0 mm (1.9 in)	21.6 mm (0.9 in)	61 years	49 of 100 (Notable)
27 May 2018	Chugwater, US	monthly high min	15.6 C (60.1 F)	0.6 C (1.1 F)	90 years	48 of 100 (Notable)
27 May 2018	Horton, US	daily high max	36.7 C (98.1 F)	3.9 C (7.0 F)	122 years	47 of 100 (Notable)
27 May 2018	Tazewell, US	daily rain	71.1 mm (2.8 in)	42.1 mm (1.7 in)	21 years	47 of 100 (Notable)
27 May 2018	Laucala Bay, FJ	daily rain	215.0 mm (8.5 in)	187.6 mm (7.4 in)	7 years	45 of 100 (Notable)
27 May 2018	Ovezande, NL	daily rain	40.3 mm (1.6 in)	19.4 mm (0.8 in)	4 years	45 of 100 (Notable)
27 May 2018	Leroy 5 WSW, US	daily high min	15.6 C (60.1 F)	2.3 C (4.1 F)	122 years	45 of 100 (Notable)
27 May 2018	Atlantic 1 NE, US	daily high max	37.8 C (100.0 F)	5.0 C (9.0 F)	87 years	45 of 100 (Notable)
27 May 2018	Greenfield, US	daily high max	36.1 C (97.0 F)	2.8 C (5.0 F)	104 years	45 of 100 (Notable)
27 May 2018	Spirit Lake, US	daily high max	35.6 C (96.1 F)	3.4 C (6.1 F)	122 years	45 of 100 (Notable)
27 May 2018	Williamsport, US	daily rain	39.1 mm (1.5 in)	14.7 mm (0.6 in)	77 years	45 of 100 (Notable)
27 May 2018	West Souburg, NL	daily high min	17.8 C (64.0 F)	1.3 C (2.3 F)	97 years	44 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

1797 to 2018

Records set or tied on this calendar date in each year from 1797 to 2018. 2018 had 1,355 records.

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

Records on 05-27 in each year
Year	Records
1797	1
1817	1
1818	1
1834	2
1836	4
1839	1
1845	1
1846	1
1847	1
1849	1
1852	1
1858	1
1860	1
1863	1
1864	3
1868	4
1869	1
1874	1
1876	1
1879	3
1880	5
1881	2
1883	1
1884	1
1885	1
1886	1
1888	1
1889	3
1890	5
1891	2
1892	8
1893	5
1894	13
1895	4
1896	3
1897	1
1898	3
1899	2
1900	4
1901	7
1902	12
1903	7
1904	11
1905	7
1906	28
1907	23
1908	16
1909	7
1910	31
1911	53
1912	27
1913	19
1914	92
1915	63
1916	26
1917	23
1918	39
1919	38
1920	40
1921	56
1922	36
1923	86
1924	92
1925	291
1926	107
1927	183
1928	81
1929	195
1930	99
1931	367
1932	265
1933	284
1934	393
1935	128
1936	468
1937	298
1938	492
1939	312
1940	138
1941	436
1942	657
1943	160
1944	479
1945	272
1946	424
1947	485
1948	324
1949	366
1950	697
1951	578
1952	258
1953	603
1954	367
1955	571
1956	491
1957	367
1958	619
1959	449
1960	421
1961	1,504
1962	460
1963	421
1964	317
1965	652
1966	398
1967	492
1968	605
1969	850
1970	326
1971	612
1972	508
1973	943
1974	630
1975	404
1976	589
1977	663
1978	814
1979	899
1980	644
1981	891
1982	838
1983	1,253
1984	834
1985	873
1986	696
1987	1,037
1988	777
1989	904
1990	804
1991	1,429
1992	1,413
1993	835
1994	848
1995	815
1996	1,378
1997	919
1998	1,079
1999	876
2000	1,347
2001	898
2002	511
2003	918
2004	838
2005	1,094
2006	1,171
2007	886
2008	914
2009	858
2010	955
2011	1,055
2012	1,475
2013	607
2014	835
2015	537
2016	622
2017	541
2018	1,355
2019	960
2020	906
2021	414
2022	653
2023	405
2024	904
2025	761
2026	1,185

Download the Data

Data for records on 2018-05-27: 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 25	1,011
25 to 50	11
50 to 75	2
75 to 100	0
100 to 125	0
125 to 150	0
150 to 175	0
175 to 200	1