Weather Records on 15 May 1993

784 weather records were set or tied worldwide on 15 May 1993. Highest significance: Monticello 2E, US.

Key Facts for 15 May 1993

On 15 May 1993, 784 weather records were set or tied at long-record stations worldwide.
355 were record highs and 206 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 9 monthly and 775 daily.
Monticello 2E set a daily record precipitation of 34.5 mm (1.4 in) on 15 May 1993.
Across 162 earlier years (1820 to 2026) the same calendar date averaged 428 records.

Record Map

784 stations

784 station records on 15 May 1993 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 May 1993: highest significance records shown on the map
Station	Country	Type	Value	Significance
Monticello 2E	United States	Record daily precipitation	34.5 mm (1.4 in)	60 of 100 (Major)
Stornoway Airport	United Kingdom	Record daily precipitation	26.0 mm (1.0 in)	53 of 100 (Notable)
Monticello 2E	United States	Record daily snowfall	7.6 cm (3.0 in)	51 of 100 (Notable)
Bobrynets	Ukraine	Record daily precipitation	27.9 mm (1.1 in)	50 of 100 (Notable)
White Cliffs (Monolon)	Australia	Record daily precipitation	50.0 mm (2.0 in)	49 of 100 (Notable)
Navelsjo	Sweden	Record daily precipitation	27.4 mm (1.1 in)	48 of 100 (Notable)
Hecelchakan (Smn)	Mexico	Record low minimum temperature	10.6 C (51.1 F)	45 of 100 (Notable)
Mariestad	Sweden	Record daily precipitation	28.5 mm (1.1 in)	45 of 100 (Notable)
Skovde	Sweden	Record daily precipitation	34.0 mm (1.3 in)	44 of 100 (Notable)
Palmerville	Australia	Record high maximum temperature	34.5 C (94.1 F)	42 of 100 (Notable)
Remningstorp	Sweden	Record daily precipitation	27.0 mm (1.1 in)	41 of 100 (Notable)
Biritiba Mirim	Brazil	Record daily precipitation	33.1 mm (1.3 in)	38 of 100 (Notable)
Eleuterio	Brazil	Record daily precipitation	92.9 mm (3.7 in)	38 of 100 (Notable)
Aranyaprathet	Thailand	Record low maximum temperature	27.8 C (82.0 F)	37 of 100 (Notable)
Merida Centro	Mexico	Record low minimum temperature	11.7 C (53.1 F)	36 of 100 (Notable)
Gogland	Russia	Record high minimum temperature	11.9 C (53.4 F)	36 of 100 (Notable)
Childs	United States	Record high minimum temperature	18.3 C (64.9 F)	36 of 100 (Notable)
Boras	Sweden	Record high minimum temperature	11.1 C (52.0 F)	34 of 100 (Routine)
Cordova AP	United States	Record high maximum temperature	22.8 C (73.0 F)	34 of 100 (Routine)
Barra Mansa	Brazil	Record daily precipitation	73.0 mm (2.9 in)	33 of 100 (Routine)
Fazenda Vista Redonda	Brazil	Record daily precipitation	55.5 mm (2.2 in)	33 of 100 (Routine)
Waterdale	United States	Record high minimum temperature	10.6 C (51.1 F)	33 of 100 (Routine)
Kinlochewe	United Kingdom	Record daily precipitation	39.6 mm (1.6 in)	32 of 100 (Routine)
Saint Johns	United States	Record high minimum temperature	15.0 C (59.0 F)	32 of 100 (Routine)
Rostov-Na-Donu	Russia	Record daily precipitation	29.5 mm (1.2 in)	31 of 100 (Routine)
Kuscevskaja	Russia	Record daily precipitation	25.7 mm (1.0 in)	31 of 100 (Routine)
Steamboat Springs	United States	Record high minimum temperature	5.0 C (41.0 F)	31 of 100 (Routine)
San Diego de la Union	Mexico	Record low minimum temperature	5.6 C (42.1 F)	30 of 100 (Routine)
Timasevskaja	Russia	Record daily precipitation	33.4 mm (1.3 in)	30 of 100 (Routine)
Krasnaja Poljana	Russia	Record daily precipitation	36.1 mm (1.4 in)	30 of 100 (Routine)
Reit Im Winkl	Germany	Record daily precipitation	26.0 mm (1.0 in)	29 of 100 (Routine)
Sacaton	United States	Record high minimum temperature	21.7 C (71.1 F)	29 of 100 (Routine)
Forest Grove	United States	Record high minimum temperature	13.3 C (55.9 F)	29 of 100 (Routine)
Cleburne	United States	Record high maximum temperature	35.0 C (95.0 F)	29 of 100 (Routine)
Evanston 1 E	United States	Record high minimum temperature	7.8 C (46.0 F)	29 of 100 (Routine)
Newport	United States	Record high minimum temperature	11.1 C (52.0 F)	29 of 100 (Routine)
San Baltazar Tetela	Mexico	Record low minimum temperature	5.0 C (41.0 F)	28 of 100 (Routine)
Savsjo	Sweden	Record daily precipitation	25.3 mm (1.0 in)	28 of 100 (Routine)
Sarna	Sweden	Record daily precipitation	29.2 mm (1.1 in)	28 of 100 (Routine)
Bagdad	United States	Record high minimum temperature	18.9 C (66.0 F)	28 of 100 (Routine)
Kunda	Estonia	Record high minimum temperature	13.8 C (56.8 F)	27 of 100 (Routine)
Tallinn	Estonia	Record high minimum temperature	13.7 C (56.7 F)	27 of 100 (Routine)
Visby_Flygplats	Sweden	Record high minimum temperature	11.8 C (53.2 F)	27 of 100 (Routine)
Kluhorskij Pereval	Georgia	Record daily precipitation	46.7 mm (1.8 in)	26 of 100 (Routine)
Borzja	Russia	Record high minimum temperature	12.1 C (53.8 F)	26 of 100 (Routine)
Linkoeping-Malmslaett	Sweden	Record high maximum temperature	26.1 C (79.0 F)	26 of 100 (Routine)
Hoburg	Sweden	Record high minimum temperature	11.2 C (52.2 F)	26 of 100 (Routine)
Orebro	Sweden	Record high maximum temperature	25.1 C (77.2 F)	26 of 100 (Routine)
Casa Grande	United States	Record high minimum temperature	21.7 C (71.1 F)	26 of 100 (Routine)
Parkersburg	United States	Record low minimum temperature	2.8 C (37.0 F)	26 of 100 (Routine)
Linkoeping-Malmslaett	Sweden	Record high minimum temperature	12.9 C (55.2 F)	25 of 100 (Routine)
Conrad	United States	Record high minimum temperature	10.0 C (50.0 F)	25 of 100 (Routine)
Duchesne	United States	Record high minimum temperature	11.7 C (53.1 F)	25 of 100 (Routine)
Sage 4 NNW	United States	Record high minimum temperature	8.3 C (46.9 F)	25 of 100 (Routine)
Princeville Rch 1117	United States	Record daily precipitation	30.2 mm (1.2 in)	25 of 100 (Routine)
Northway AP	United States	Record high maximum temperature	24.4 C (75.9 F)	25 of 100 (Routine)
Vila Carmem	Brazil	Record daily precipitation	56.1 mm (2.2 in)	24 of 100 (Routine)
Kuressaare	Estonia	Record high minimum temperature	13.7 C (56.7 F)	24 of 100 (Routine)
Chapulco	Mexico	Record high minimum temperature	12.8 C (55.0 F)	24 of 100 (Routine)
Szczecin	Poland	Record high minimum temperature	12.4 C (54.3 F)	24 of 100 (Routine)

Counts by Type and Timescale

784 records

Records set or tied on 15 May 1993 by type: Highest daily maximum 134, Lowest daily maximum 70, Highest daily minimum 221, Lowest daily minimum 136, Heaviest daily rainfall 221, Heaviest daily snowfall 1, Deepest snow cover 1.

Records on 15 May 1993 by type
Record type	Records
Highest daily maximum	134
Lowest daily maximum	70
Highest daily minimum	221
Lowest daily minimum	136
Heaviest daily rainfall	221
Heaviest daily snowfall	1
Deepest snow cover	1

Records on 15 May 1993 by timescale: all-time 0, monthly 9, daily 775.

How Much Records Were Beaten By

629 broken records

Margins by which the 629 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 76.0. Ties are not counted.

Top 20 by Significance

15 May 1993

Top 20 records on 15 May 1993 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 May 1993	Monticello 2E, US	daily rain	34.5 mm (1.4 in)	22.3 mm (0.9 in)	48 years	60 of 100 (Major)
15 May 1993	Stornoway Airport, GB	daily rain	26.0 mm (1.0 in)	13.0 mm (0.5 in)	48 years	53 of 100 (Notable)
15 May 1993	Monticello 2E, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	91 years	51 of 100 (Notable)
15 May 1993	Bobrynets, UA	daily rain	27.9 mm (1.1 in)	22.7 mm (0.9 in)	32 years	50 of 100 (Notable)
15 May 1993	White Cliffs (Monolon), AU	daily rain	50.0 mm (2.0 in)	41.8 mm (1.6 in)	19 years	49 of 100 (Notable)
15 May 1993	Navelsjo, SE	daily rain	27.4 mm (1.1 in)	20.6 mm (0.8 in)	18 years	48 of 100 (Notable)
15 May 1993	Hecelchakan (Smn), MX	daily low min	10.6 C (51.1 F)	8.3 C (14.9 F)	14 years	45 of 100 (Notable)
15 May 1993	Mariestad, SE	daily rain	28.5 mm (1.1 in)	23.5 mm (0.9 in)	7 years	45 of 100 (Notable)
15 May 1993	Skovde, SE	daily rain	34.0 mm (1.3 in)	22.0 mm (0.9 in)	2 years	44 of 100 (Notable)
15 May 1993	Palmerville, AU	daily high max	34.5 C (94.1 F)	1.2 C (2.2 F)	92 years	42 of 100 (Notable)
15 May 1993	Remningstorp, SE	daily rain	27.0 mm (1.1 in)	18.0 mm (0.7 in)	2 years	41 of 100 (Notable)
15 May 1993	Biritiba Mirim, BR	daily rain	33.1 mm (1.3 in)	23.1 mm (0.9 in)	28 years	38 of 100 (Notable)
15 May 1993	Eleuterio, BR	monthly rain	92.9 mm (3.7 in)	18.6 mm (0.7 in)	35 years	38 of 100 (Notable)
15 May 1993	Aranyaprathet, TH	daily low max	27.8 C (82.0 F)	4.7 C (8.5 F)	39 years	37 of 100 (Notable)
15 May 1993	Merida Centro, MX	daily low min	11.7 C (53.1 F)	6.1 C (11.0 F)	4 years	36 of 100 (Notable)
15 May 1993	Gogland, RU	daily high min	11.9 C (53.4 F)	1.5 C (2.7 F)	83 years	36 of 100 (Notable)
15 May 1993	Childs, US	daily high min	18.3 C (64.9 F)	2.7 C (4.9 F)	76 years	36 of 100 (Notable)
15 May 1993	Boras, SE	daily high min	11.1 C (52.0 F)	0.1 C (0.2 F)	83 years	34 of 100 (Routine)
15 May 1993	Cordova AP, US	daily high max	22.8 C (73.0 F)	4.5 C (8.1 F)	48 years	34 of 100 (Routine)
15 May 1993	Barra Mansa, BR	daily rain	73.0 mm (2.9 in)	42.0 mm (1.7 in)	2 years	33 of 100 (Routine)

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

1820 to 1993

Records set or tied on this calendar date in each year from 1820 to 1993. 1993 had 784 records.

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

Records on 05-15 in each year
Year	Records
1820	1
1825	1
1831	1
1832	1
1837	2
1845	1
1847	2
1848	1
1855	2
1857	2
1859	1
1862	1
1863	1
1865	1
1866	2
1867	1
1868	2
1870	1
1871	3
1874	2
1876	4
1878	1
1879	2
1881	1
1883	1
1885	1
1886	2
1888	3
1891	3
1893	5
1894	2
1895	4
1896	2
1897	4
1898	3
1899	9
1900	9
1901	2
1902	9
1903	4
1904	13
1905	16
1906	10
1907	27
1908	25
1909	89
1910	27
1911	27
1912	26
1913	60
1914	16
1915	236
1916	27
1917	80
1918	133
1919	25
1920	58
1921	92
1922	30
1923	125
1924	174
1925	100
1926	161
1927	191
1928	144
1929	161
1930	136
1931	459
1932	368
1933	439
1934	227
1935	288
1936	372
1937	373
1938	393
1939	351
1940	179
1941	454
1942	701
1943	568
1944	630
1945	588
1946	238
1947	334
1948	264
1949	363
1950	260
1951	736
1952	476
1953	426
1954	355
1955	538
1956	466
1957	521
1958	605
1959	764
1960	291
1961	508
1962	1,128
1963	782
1964	347
1965	320
1966	389
1967	609
1968	1,019
1969	790
1970	512
1971	351
1972	484
1973	818
1974	1,230
1975	372
1976	803
1977	1,186
1978	922
1979	404
1980	625
1981	586
1982	500
1983	1,215
1984	1,059
1985	649
1986	679
1987	1,073
1988	643
1989	552
1990	776
1991	1,179
1992	944
1993	784
1994	910
1995	1,750
1996	1,452
1997	1,175
1998	1,641
1999	810
2000	850
2001	1,280
2002	801
2003	1,023
2004	1,046
2005	767
2006	955
2007	949
2008	995
2009	675
2010	1,088
2011	1,298
2012	751
2013	1,081
2014	1,411
2015	717
2016	890
2017	435
2018	1,074
2019	627
2020	472
2021	412
2022	847
2023	566
2024	596
2025	801
2026	481

Download the Data

Data for records on 1993-05-15: 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	585
10 to 20	30
20 to 30	10
30 to 40	0
40 to 50	2
50 to 60	1
60 to 70	0
70 to 80	1