Weather Records on 31 May 2018

1,211 weather records were set or tied worldwide on 31 May 2018. Highest significance: Haugan 1 W, US.

Key Facts for 31 May 2018

On 31 May 2018, 1,211 weather records were set or tied at long-record stations worldwide.
959 were record highs and 55 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 149 monthly and 1,059 daily.
Haugan 1 W set a monthly record daily precipitation of 73.9 mm (2.9 in) on 31 May 2018.
Across 161 earlier years (1811 to 2026) the same calendar date averaged 433 records.

Record Map

1,211 stations

1,211 station records on 31 May 2018 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 May 2018: highest significance records shown on the map
Station	Country	Type	Value	Significance
Haugan 1 W	United States	Record daily precipitation	73.9 mm (2.9 in)	78 of 100 (Major)
Trier-Petrisberg	Germany	Record daily precipitation	42.6 mm (1.7 in)	67 of 100 (Major)
Oxford	United Kingdom	Record daily precipitation	31.0 mm (1.2 in)	66 of 100 (Major)
New England	United States	Record daily precipitation	52.8 mm (2.1 in)	65 of 100 (Major)
Worms	Germany	Record daily precipitation	42.6 mm (1.7 in)	61 of 100 (Major)
Greensboro	United States	Record daily precipitation	165.4 mm (6.5 in)	61 of 100 (Major)
Golden Valley 9S	United States	Record daily precipitation	64.0 mm (2.5 in)	60 of 100 (Major)
Charlottesville 2W	United States	Record daily precipitation	77.7 mm (3.1 in)	59 of 100 (Notable)
Helen	United States	Record daily precipitation	120.4 mm (4.7 in)	58 of 100 (Notable)
Vroomshoop	Netherlands	Record daily precipitation	40.2 mm (1.6 in)	57 of 100 (Notable)
Hersdorf-Weissenseifen	Germany	Record daily precipitation	42.3 mm (1.7 in)	56 of 100 (Notable)
Zegveld	Netherlands	Record daily precipitation	55.7 mm (2.2 in)	56 of 100 (Notable)
Antigo	United States	Record daily precipitation	53.1 mm (2.1 in)	55 of 100 (Notable)
Mohrendorf-Kleinseebach	Germany	Record daily precipitation	72.4 mm (2.9 in)	53 of 100 (Notable)
Dietenhofen	Germany	Record daily precipitation	88.3 mm (3.5 in)	53 of 100 (Notable)
Walterboro 1 SW	United States	Record daily precipitation	33.8 mm (1.3 in)	53 of 100 (Notable)
Oost Maarland	Netherlands	Record daily precipitation	30.0 mm (1.2 in)	52 of 100 (Notable)
Hillsboro	United States	Record high minimum temperature	22.8 C (73.0 F)	52 of 100 (Notable)
Culym	Russia	Record daily precipitation	45.0 mm (1.8 in)	51 of 100 (Notable)
Franklin	United States	Record high minimum temperature	20.6 C (69.1 F)	51 of 100 (Notable)
Strasbourg-Entzheim	France	Record daily precipitation	52.4 mm (2.1 in)	50 of 100 (Notable)
Schneifelforsthaus	Germany	Record daily precipitation	35.6 mm (1.4 in)	50 of 100 (Notable)
Sigmaringen-Laiz	Germany	Record daily precipitation	65.6 mm (2.6 in)	50 of 100 (Notable)
Wauchula	United States	Record daily precipitation	104.1 mm (4.1 in)	50 of 100 (Notable)
Oakland 1 SE	United States	Record high minimum temperature	19.4 C (66.9 F)	50 of 100 (Notable)
Chester	United States	Record daily precipitation	32.5 mm (1.3 in)	49 of 100 (Notable)
Linden Wtp	United States	Record daily precipitation	132.1 mm (5.2 in)	49 of 100 (Notable)
Alzey	Germany	Record daily precipitation	31.1 mm (1.2 in)	48 of 100 (Notable)
Schmelz-Huttersdorf	Germany	Record daily precipitation	54.1 mm (2.1 in)	48 of 100 (Notable)
Valkenburg-1	Netherlands	Record daily precipitation	29.6 mm (1.2 in)	48 of 100 (Notable)
Barrington 3SW	United States	Record daily precipitation	113.8 mm (4.5 in)	48 of 100 (Notable)
Lowell	United States	Record daily precipitation	52.8 mm (2.1 in)	48 of 100 (Notable)
Tholey	Germany	Record daily precipitation	51.3 mm (2.0 in)	47 of 100 (Notable)
Daytona Beach	United States	Record daily precipitation	63.5 mm (2.5 in)	46 of 100 (Notable)
Sines Deep Creek	United States	Record high minimum temperature	18.3 C (64.9 F)	46 of 100 (Notable)
Melstone	United States	Record daily precipitation	37.6 mm (1.5 in)	46 of 100 (Notable)
Parsons 3 SE	United States	Record high minimum temperature	20.6 C (69.1 F)	46 of 100 (Notable)
Greenville Kgvl Radio	United States	Record high minimum temperature	25.6 C (78.1 F)	45 of 100 (Notable)
Angermunde	Germany	Record high minimum temperature	17.0 C (62.6 F)	44 of 100 (Notable)
Eppingen-Elsenz	Germany	Record daily precipitation	39.9 mm (1.6 in)	44 of 100 (Notable)
Trier-Zewen	Germany	Record daily precipitation	48.6 mm (1.9 in)	44 of 100 (Notable)
Weinbiet	Germany	Record daily precipitation	36.2 mm (1.4 in)	44 of 100 (Notable)
Sultan Abdul Aziz Shah Intl	Malaysia	Record daily precipitation	108.2 mm (4.3 in)	44 of 100 (Notable)
Washta	United States	Record high maximum temperature	36.7 C (98.1 F)	44 of 100 (Notable)
Maysville Wwtp	United States	Record high minimum temperature	21.7 C (71.1 F)	44 of 100 (Notable)
Lake City Exp Farm	United States	Record high minimum temperature	19.4 C (66.9 F)	44 of 100 (Notable)
Elmira Corning Rgnl AP	United States	Record high minimum temperature	21.1 C (70.0 F)	44 of 100 (Notable)
Gainesville Lock	United States	Record daily precipitation	77.2 mm (3.0 in)	43 of 100 (Notable)
Charlevoix	United States	Record high maximum temperature	32.8 C (91.0 F)	43 of 100 (Notable)
Dansville	United States	Record high minimum temperature	21.1 C (70.0 F)	43 of 100 (Notable)
Marnitz	Germany	Record high maximum temperature	31.8 C (89.2 F)	42 of 100 (Notable)
Weiskirchen/Saar	Germany	Record daily precipitation	43.0 mm (1.7 in)	42 of 100 (Notable)
Almelo	Netherlands	Record daily precipitation	45.2 mm (1.8 in)	42 of 100 (Notable)
De Bilt	Netherlands	Record high minimum temperature	16.5 C (61.7 F)	42 of 100 (Notable)
Buxton	United Kingdom	Record high minimum temperature	12.9 C (55.2 F)	42 of 100 (Notable)
Pontiac Wwtp	United States	Record high minimum temperature	20.6 C (69.1 F)	42 of 100 (Notable)
Laurens	United States	Record high minimum temperature	22.2 C (72.0 F)	42 of 100 (Notable)
Kremsmuenster	Austria	Record high maximum temperature	30.5 C (86.9 F)	41 of 100 (Notable)
Sarh	Chad	Record low minimum temperature	15.5 C (59.9 F)	41 of 100 (Notable)
Bamberg	Germany	Record high maximum temperature	31.1 C (88.0 F)	41 of 100 (Notable)

Counts by Type and Timescale

1,211 records

Records set or tied on 31 May 2018 by type: Highest daily maximum 307, Lowest daily maximum 30, Highest daily minimum 652, Lowest daily minimum 25, Heaviest daily rainfall 195, Deepest snow cover 2.

Records on 31 May 2018 by type
Record type	Records
Highest daily maximum	307
Lowest daily maximum	30
Highest daily minimum	652
Lowest daily minimum	25
Heaviest daily rainfall	195
Heaviest daily snowfall	0
Deepest snow cover	2

Records on 31 May 2018 by timescale: all-time 3, monthly 149, daily 1,059.

How Much Records Were Beaten By

955 broken records

Margins by which the 955 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 97.8. Ties are not counted.

Top 20 by Significance

31 May 2018

Top 20 records on 31 May 2018 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 May 2018	Haugan 1 W, US	monthly rain	73.9 mm (2.9 in)	33.8 mm (1.3 in)	61 years	78 of 100 (Major)
31 May 2018	Trier-Petrisberg, DE	daily rain	42.6 mm (1.7 in)	26.6 mm (1.0 in)	64 years	67 of 100 (Major)
31 May 2018	Oxford, GB	daily rain	31.0 mm (1.2 in)	13.0 mm (0.5 in)	108 years	66 of 100 (Major)
31 May 2018	New England, US	daily rain	52.8 mm (2.1 in)	26.1 mm (1.0 in)	83 years	65 of 100 (Major)
31 May 2018	Worms, DE	daily rain	42.6 mm (1.7 in)	25.8 mm (1.0 in)	52 years	61 of 100 (Major)
31 May 2018	Greensboro, US	daily rain	165.4 mm (6.5 in)	66.3 mm (2.6 in)	48 years	61 of 100 (Major)
31 May 2018	Golden Valley 9S, US	daily rain	64.0 mm (2.5 in)	45.5 mm (1.8 in)	47 years	60 of 100 (Major)
31 May 2018	Charlottesville 2W, US	daily rain	77.7 mm (3.1 in)	47.2 mm (1.9 in)	48 years	59 of 100 (Notable)
31 May 2018	Helen, US	daily rain	120.4 mm (4.7 in)	79.8 mm (3.1 in)	43 years	58 of 100 (Notable)
31 May 2018	Vroomshoop, NL	daily rain	40.2 mm (1.6 in)	18.7 mm (0.7 in)	53 years	57 of 100 (Notable)
31 May 2018	Hersdorf-Weissenseifen, DE	daily rain	42.3 mm (1.7 in)	25.7 mm (1.0 in)	39 years	56 of 100 (Notable)
31 May 2018	Zegveld, NL	monthly rain	55.7 mm (2.2 in)	18.5 mm (0.7 in)	5 years	56 of 100 (Notable)
31 May 2018	Antigo, US	daily rain	53.1 mm (2.1 in)	22.1 mm (0.9 in)	75 years	55 of 100 (Notable)
31 May 2018	Mohrendorf-Kleinseebach, DE	monthly rain	72.4 mm (2.9 in)	10.0 mm (0.4 in)	73 years	53 of 100 (Notable)
31 May 2018	Dietenhofen, DE	monthly rain	88.3 mm (3.5 in)	49.9 mm (2.0 in)	0 years	53 of 100 (Notable)
31 May 2018	Walterboro 1 SW, US	daily rain	33.8 mm (1.3 in)	21.9 mm (0.9 in)	113 years	53 of 100 (Notable)
31 May 2018	Oost Maarland, NL	daily rain	30.0 mm (1.2 in)	23.1 mm (0.9 in)	31 years	52 of 100 (Notable)
31 May 2018	Hillsboro, US	monthly high min	22.8 C (73.0 F)	1.1 C (2.0 F)	115 years	52 of 100 (Notable)
31 May 2018	Culym, RU	monthly rain	45.0 mm (1.8 in)	9.8 mm (0.39 in)	32 years	51 of 100 (Notable)
31 May 2018	Franklin, US	monthly high min	20.6 C (69.1 F)	0.6 C (1.1 F)	100 years	51 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

1811 to 2018

Records set or tied on this calendar date in each year from 1811 to 2018. 2018 had 1,211 records.

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

Records on 05-31 in each year
Year	Records
1811	1
1818	3
1827	1
1836	2
1845	1
1847	1
1853	2
1855	2
1858	1
1864	2
1865	1
1866	1
1867	1
1868	4
1869	1
1871	2
1873	3
1874	1
1877	1
1878	2
1879	2
1880	3
1882	1
1883	1
1885	1
1888	1
1889	2
1890	1
1892	1
1893	4
1894	2
1895	8
1897	5
1898	7
1899	1
1900	2
1901	9
1902	9
1903	17
1904	19
1905	7
1906	11
1907	20
1908	12
1909	8
1910	26
1911	20
1912	15
1913	83
1914	20
1915	23
1916	23
1917	13
1918	20
1919	44
1920	46
1921	157
1922	49
1923	98
1924	152
1925	226
1926	228
1927	121
1928	67
1929	246
1930	612
1931	223
1932	181
1933	397
1934	782
1935	156
1936	559
1937	462
1938	424
1939	461
1940	383
1941	410
1942	364
1943	552
1944	372
1945	457
1946	380
1947	439
1948	295
1949	303
1950	467
1951	640
1952	374
1953	654
1954	445
1955	534
1956	632
1957	304
1958	429
1959	459
1960	247
1961	472
1962	565
1963	354
1964	1,237
1965	494
1966	601
1967	987
1968	276
1969	555
1970	573
1971	714
1972	1,127
1973	418
1974	473
1975	797
1976	435
1977	605
1978	873
1979	915
1980	517
1981	775
1982	817
1983	1,494
1984	2,047
1985	790
1986	1,365
1987	822
1988	1,255
1989	912
1990	900
1991	1,381
1992	1,031
1993	982
1994	776
1995	693
1996	946
1997	1,163
1998	1,215
1999	790
2000	1,172
2001	1,047
2002	1,162
2003	831
2004	1,071
2005	724
2006	1,045
2007	793
2008	809
2009	570
2010	741
2011	1,498
2012	764
2013	1,100
2014	565
2015	704
2016	402
2017	440
2018	1,211
2019	420
2020	673
2021	834
2022	902
2023	454
2024	809
2025	1,204
2026	536

Download the Data

Data for records on 2018-05-31: 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	920
20 to 40	26
40 to 60	3
60 to 80	5
80 to 100	1