Weather Records on 18 May 1993

707 weather records were set or tied worldwide on 18 May 1993. Highest significance: Nagpur Sonegaon, IN.

Key Facts for 18 May 1993

On 18 May 1993, 707 weather records were set or tied at long-record stations worldwide.
334 were record highs and 137 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 16 monthly and 689 daily.
Nagpur Sonegaon set a monthly record daily precipitation of 135.9 mm (5.4 in) on 18 May 1993.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 441 records.

Record Map

707 stations

707 station records on 18 May 1993 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 May 1993: highest significance records shown on the map
Station	Country	Type	Value	Significance
Nagpur Sonegaon	India	Record daily precipitation	135.9 mm (5.4 in)	63 of 100 (Major)
Deols Chateauroux Aerodrome de	France	Record daily precipitation	44.8 mm (1.8 in)	61 of 100 (Major)
Columbus	United States	Record daily precipitation	109.5 mm (4.3 in)	60 of 100 (Major)
Pittsburg	United States	Record daily precipitation	81.3 mm (3.2 in)	53 of 100 (Notable)
El-Ton	Russia	Record daily precipitation	33.0 mm (1.3 in)	51 of 100 (Notable)
Rottnest Island Lighthouse	Australia	Record daily precipitation	65.0 mm (2.6 in)	50 of 100 (Notable)
Oudemirdum	Netherlands	Record daily precipitation	25.1 mm (1.0 in)	50 of 100 (Notable)
Ashland	United States	Record high minimum temperature	17.2 C (63.0 F)	48 of 100 (Notable)
Oswego 1 N	United States	Record daily precipitation	102.9 mm (4.1 in)	46 of 100 (Notable)
Sonoma	United States	Record high minimum temperature	17.8 C (64.0 F)	44 of 100 (Notable)
Stavoren_1	Netherlands	Record daily precipitation	25.5 mm (1.0 in)	43 of 100 (Notable)
Ft Yates 4 SW	United States	Record low minimum temperature	-3.3 C (26.1 F)	43 of 100 (Notable)
Arnsberg	Germany	Record high minimum temperature	14.5 C (58.1 F)	42 of 100 (Notable)
Tecuantepec (Cfe)	Mexico	Record daily precipitation	94.5 mm (3.7 in)	42 of 100 (Notable)
Dyer 5S	United States	Record high minimum temperature	13.9 C (57.0 F)	41 of 100 (Notable)
Chestertown	United States	Record low maximum temperature	15.0 C (59.0 F)	40 of 100 (Notable)
South Pass City	United States	Record daily precipitation	26.9 mm (1.1 in)	40 of 100 (Notable)
Jaskul	Russia	Record daily precipitation	36.1 mm (1.4 in)	38 of 100 (Notable)
Bodie California St Historic P	United States	Record high minimum temperature	1.1 C (34.0 F)	38 of 100 (Notable)
Newkirk 5NE	United States	Record daily precipitation	63.5 mm (2.5 in)	38 of 100 (Notable)
Lowestoft	United Kingdom	Record high minimum temperature	12.4 C (54.3 F)	37 of 100 (Notable)
Culbertson	United States	Record low minimum temperature	-3.3 C (26.1 F)	37 of 100 (Notable)
Heinsberg-Schleiden	Germany	Record daily precipitation	25.9 mm (1.0 in)	36 of 100 (Notable)
Makkum	Netherlands	Record daily precipitation	28.4 mm (1.1 in)	36 of 100 (Notable)
Eureka WFO Woodley Is	United States	Record high maximum temperature	25.6 C (78.1 F)	36 of 100 (Notable)
Vlamingh Head	Australia	Record daily precipitation	29.4 mm (1.2 in)	35 of 100 (Notable)
Alcobaca	Brazil	Record daily precipitation	68.4 mm (2.7 in)	35 of 100 (Notable)
Kleve	Germany	Record high minimum temperature	15.9 C (60.6 F)	35 of 100 (Notable)
Forest Grove	United States	Record high minimum temperature	13.3 C (55.9 F)	35 of 100 (Notable)
Seward AP	United States	Record high minimum temperature	7.8 C (46.0 F)	35 of 100 (Notable)
Ixmiquilpan (Smn)	Mexico	Record low minimum temperature	5.0 C (41.0 F)	34 of 100 (Routine)
Zweelo	Netherlands	Record daily precipitation	26.3 mm (1.0 in)	34 of 100 (Routine)
Caledonia	United States	Record low maximum temperature	11.1 C (52.0 F)	34 of 100 (Routine)
Podor	Senegal	Record high minimum temperature	32.3 C (90.1 F)	33 of 100 (Routine)
Ft Bragg 5 N	United States	Record high maximum temperature	25.0 C (77.0 F)	33 of 100 (Routine)
Mound Valley 3 WSW	United States	Record daily precipitation	74.2 mm (2.9 in)	33 of 100 (Routine)
Golconda	United States	Record high minimum temperature	12.8 C (55.0 F)	33 of 100 (Routine)
Watford City	United States	Record low minimum temperature	-1.7 C (28.9 F)	33 of 100 (Routine)
Ipiau	Brazil	Record daily precipitation	25.8 mm (1.0 in)	32 of 100 (Routine)
Canton	United States	Record daily precipitation	55.4 mm (2.2 in)	32 of 100 (Routine)
Mendez	Mexico	Record daily precipitation	45.5 mm (1.8 in)	31 of 100 (Routine)
Guayama 1SW	Puerto Rico [United States]	Record high minimum temperature	25.6 C (78.1 F)	31 of 100 (Routine)
Rolla Missouri S&T	United States	Record daily precipitation	57.9 mm (2.3 in)	31 of 100 (Routine)
Beowawe	United States	Record high minimum temperature	12.8 C (55.0 F)	31 of 100 (Routine)
Headworks Portland Wtr B	United States	Record high minimum temperature	12.8 C (55.0 F)	31 of 100 (Routine)
Centralia	United States	Record high minimum temperature	13.3 C (55.9 F)	31 of 100 (Routine)
Parkfield	Australia	Record daily precipitation	40.0 mm (1.6 in)	30 of 100 (Routine)
Chapman Hill	Australia	Record daily precipitation	62.0 mm (2.4 in)	30 of 100 (Routine)
Roros	Norway	Record high minimum temperature	9.0 C (48.2 F)	30 of 100 (Routine)
Waco 4N	United States	Record daily precipitation	66.0 mm (2.6 in)	30 of 100 (Routine)
Miahuatlan (Smn)	Mexico	Record high minimum temperature	20.6 C (69.1 F)	29 of 100 (Routine)
Martinez de la Torre (Dge)	Mexico	Record daily precipitation	128.0 mm (5.0 in)	29 of 100 (Routine)
De Bilt	Netherlands	Record high minimum temperature	14.5 C (58.1 F)	29 of 100 (Routine)
Mt Hebron Rs	United States	Record high minimum temperature	11.7 C (53.1 F)	29 of 100 (Routine)
Prado	Brazil	Record daily precipitation	50.1 mm (2.0 in)	28 of 100 (Routine)
Colonia Alvaro Obregon	Mexico	Record low minimum temperature	3.9 C (39.0 F)	28 of 100 (Routine)
Caplinger Mills	United States	Record daily precipitation	39.4 mm (1.6 in)	28 of 100 (Routine)
Rainier Paradise Rs	United States	Record high maximum temperature	21.1 C (70.0 F)	28 of 100 (Routine)
Guemez	Mexico	Record daily precipitation	87.9 mm (3.5 in)	27 of 100 (Routine)
Fredonia	United States	Record daily precipitation	43.2 mm (1.7 in)	27 of 100 (Routine)

Counts by Type and Timescale

707 records

Records set or tied on 18 May 1993 by type: Highest daily maximum 121, Lowest daily maximum 52, Highest daily minimum 213, Lowest daily minimum 85, Heaviest daily rainfall 236.

Records on 18 May 1993 by type
Record type	Records
Highest daily maximum	121
Lowest daily maximum	52
Highest daily minimum	213
Lowest daily minimum	85
Heaviest daily rainfall	236
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 May 1993 by timescale: all-time 2, monthly 16, daily 689.

How Much Records Were Beaten By

554 broken records

Margins by which the 554 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 77.2. Ties are not counted.

Top 20 by Significance

18 May 1993

Top 20 records on 18 May 1993 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 May 1993	Nagpur Sonegaon, IN	monthly rain	135.9 mm (5.4 in)	77.2 mm (3.0 in)	27 years	63 of 100 (Major)
18 May 1993	Deols Chateauroux Aerodrome de, FR	daily rain	44.8 mm (1.8 in)	25.4 mm (1.0 in)	43 years	61 of 100 (Major)
18 May 1993	Columbus, US	daily rain	109.5 mm (4.3 in)	51.3 mm (2.0 in)	58 years	60 of 100 (Major)
18 May 1993	Pittsburg, US	daily rain	81.3 mm (3.2 in)	54.9 mm (2.2 in)	44 years	53 of 100 (Notable)
18 May 1993	El-Ton, RU	daily rain	33.0 mm (1.3 in)	24.1 mm (0.9 in)	28 years	51 of 100 (Notable)
18 May 1993	Rottnest Island Lighthouse, AU	daily rain	65.0 mm (2.6 in)	18.5 mm (0.7 in)	70 years	50 of 100 (Notable)
18 May 1993	Oudemirdum, NL	daily rain	25.1 mm (1.0 in)	19.0 mm (0.7 in)	24 years	50 of 100 (Notable)
18 May 1993	Ashland, US	daily high min	17.2 C (63.0 F)	5.5 C (9.9 F)	74 years	48 of 100 (Notable)
18 May 1993	Oswego 1 N, US	monthly rain	102.9 mm (4.1 in)	1.3 mm (0.05 in)	89 years	46 of 100 (Notable)
18 May 1993	Sonoma, US	daily high min	17.8 C (64.0 F)	1.7 C (3.1 F)	98 years	44 of 100 (Notable)
18 May 1993	Stavoren_1, NL	daily rain	25.5 mm (1.0 in)	14.9 mm (0.6 in)	28 years	43 of 100 (Notable)
18 May 1993	Ft Yates 4 SW, US	daily low min	-3.3 C (26.1 F)	2.2 C (4.0 F)	97 years	43 of 100 (Notable)
18 May 1993	Arnsberg, DE	daily high min	14.5 C (58.1 F)	1.0 C (1.8 F)	108 years	42 of 100 (Notable)
18 May 1993	Tecuantepec (Cfe), MX	daily rain	94.5 mm (3.7 in)	71.1 mm (2.8 in)	20 years	42 of 100 (Notable)
18 May 1993	Dyer 5S, US	daily high min	13.9 C (57.0 F)	3.9 C (7.0 F)	78 years	41 of 100 (Notable)
18 May 1993	Chestertown, US	daily low max	15.0 C (59.0 F)	0.6 C (1.1 F)	97 years	40 of 100 (Notable)
18 May 1993	South Pass City, US	daily rain	26.9 mm (1.1 in)	6.3 mm (0.25 in)	64 years	40 of 100 (Notable)
18 May 1993	Jaskul, RU	daily rain	36.1 mm (1.4 in)	20.5 mm (0.8 in)	14 years	38 of 100 (Notable)
18 May 1993	Bodie California St Historic P, US	daily high min	1.1 C (34.0 F)	0.5 C (0.9 F)	95 years	38 of 100 (Notable)
18 May 1993	Newkirk 5NE, US	daily rain	63.5 mm (2.5 in)	27.7 mm (1.1 in)	44 years	38 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

1796 to 1993

Records set or tied on this calendar date in each year from 1796 to 1993. 1993 had 707 records.

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

Records on 05-18 in each year
Year	Records
1796	1
1798	1
1802	2
1832	1
1833	1
1845	1
1847	1
1848	1
1855	1
1859	1
1861	2
1863	3
1864	1
1866	2
1868	2
1869	1
1870	1
1871	2
1872	1
1874	2
1877	4
1878	1
1879	1
1881	1
1883	2
1884	2
1885	1
1887	1
1888	4
1889	2
1891	1
1893	2
1894	4
1895	5
1896	2
1897	2
1898	1
1899	1
1900	13
1901	6
1902	9
1903	7
1904	11
1905	2
1906	24
1907	18
1908	5
1909	12
1910	50
1911	64
1912	5
1913	11
1914	45
1915	55
1916	74
1917	30
1918	42
1919	30
1920	26
1921	41
1922	33
1923	61
1924	92
1925	220
1926	133
1927	180
1928	160
1929	193
1930	475
1931	191
1932	460
1933	380
1934	390
1935	400
1936	282
1937	348
1938	382
1939	169
1940	315
1941	334
1942	421
1943	744
1944	496
1945	706
1946	651
1947	231
1948	426
1949	597
1950	473
1951	279
1952	493
1953	393
1954	498
1955	848
1956	795
1957	595
1958	334
1959	435
1960	404
1961	187
1962	1,199
1963	477
1964	329
1965	345
1966	438
1967	410
1968	817
1969	865
1970	703
1971	666
1972	499
1973	1,233
1974	1,097
1975	383
1976	733
1977	1,126
1978	1,090
1979	399
1980	614
1981	1,218
1982	452
1983	1,093
1984	717
1985	498
1986	1,131
1987	823
1988	1,154
1989	721
1990	753
1991	1,218
1992	921
1993	707
1994	1,015
1995	1,849
1996	1,767
1997	1,115
1998	1,060
1999	584
2000	922
2001	898
2002	1,833
2003	1,270
2004	847
2005	630
2006	1,493
2007	1,133
2008	999
2009	1,368
2010	894
2011	1,406
2012	523
2013	816
2014	609
2015	785
2016	597
2017	1,855
2018	557
2019	810
2020	706
2021	418
2022	711
2023	554
2024	551
2025	619
2026	1,131

Download the Data

Data for records on 1993-05-18: 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 10	498
10 to 20	31
20 to 30	15
30 to 40	2
40 to 50	3
50 to 60	3
60 to 70	0
70 to 80	2