Weather Records on 7 May 1998

1,166 weather records were set or tied worldwide on 7 May 1998. Highest significance: Dehradun, IN.

Key Facts for 7 May 1998

On 7 May 1998, 1,166 weather records were set or tied at long-record stations worldwide.
803 were record highs and 153 were record lows, counting maximum and minimum temperature.
By timescale, 71 were all-time records, 91 monthly and 1,004 daily.
Dehradun set a daily record precipitation of 58.9 mm (2.3 in) on 7 May 1998.
Across 168 earlier years (1795 to 2026) the same calendar date averaged 414 records.

Record Map

1,166 stations

1,166 station records on 7 May 1998 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 7 May 1998: highest significance records shown on the map
Station	Country	Type	Value	Significance
Dehradun	India	Record daily precipitation	58.9 mm (2.3 in)	64 of 100 (Major)
Greensboro AP	United States	Record daily precipitation	56.1 mm (2.2 in)	54 of 100 (Notable)
Nesflaten	Norway	Record daily precipitation	51.7 mm (2.0 in)	53 of 100 (Notable)
Dresden	United States	Record daily precipitation	95.3 mm (3.8 in)	52 of 100 (Notable)
Paris 3 ESE	United States	Record daily precipitation	80.5 mm (3.2 in)	46 of 100 (Notable)
Plantersville 2 SSE	United States	Record daily precipitation	75.7 mm (3.0 in)	45 of 100 (Notable)
Suldalsvatn	Norway	Record daily precipitation	40.4 mm (1.6 in)	44 of 100 (Notable)
Villa Obregon	Mexico	Record high maximum temperature	40.6 C (105.1 F)	43 of 100 (Notable)
Brackettville	United States	Record high maximum temperature	40.0 C (104.0 F)	43 of 100 (Notable)
Piaxtla	Mexico	Record high maximum temperature	42.8 C (109.0 F)	42 of 100 (Notable)
San Luis Potosi (Dge)	Mexico	Record high maximum temperature	36.7 C (98.1 F)	42 of 100 (Notable)
Channahon Dresden Isl Dam	United States	Record daily precipitation	52.1 mm (2.1 in)	42 of 100 (Notable)
Kailua 446	United States	Record low maximum temperature	18.9 C (66.0 F)	42 of 100 (Notable)
Chicago Ohare Intl AP	United States	Record daily precipitation	52.6 mm (2.1 in)	42 of 100 (Notable)
Bulken	Norway	Record daily precipitation	31.3 mm (1.2 in)	41 of 100 (Notable)
Nhill	Australia	Record low maximum temperature	12.4 C (54.3 F)	40 of 100 (Notable)
Boquilla Numero Uno	Mexico	Record high maximum temperature	41.7 C (107.1 F)	40 of 100 (Notable)
Indianola 1SW	United States	Record daily precipitation	66.8 mm (2.6 in)	40 of 100 (Notable)
Coupeville 1 S	United States	Record high minimum temperature	10.6 C (51.1 F)	40 of 100 (Notable)
Kalinga	Australia	Record daily precipitation	44.0 mm (1.7 in)	39 of 100 (Notable)
Las Minas (Cfe)	Mexico	Record high maximum temperature	37.8 C (100.0 F)	39 of 100 (Notable)
Tecolutla	Mexico	Record high maximum temperature	41.1 C (106.0 F)	39 of 100 (Notable)
Chicago Midway AP 3SW	United States	Record daily precipitation	51.1 mm (2.0 in)	39 of 100 (Notable)
Downing	United States	Record daily precipitation	26.4 mm (1.0 in)	39 of 100 (Notable)
Denton	United States	Record low minimum temperature	-6.1 C (21.0 F)	39 of 100 (Notable)
Lake City	United States	Record daily precipitation	31.5 mm (1.2 in)	38 of 100 (Notable)
Laurel	United States	Record high minimum temperature	22.8 C (73.0 F)	38 of 100 (Notable)
Yerevan	Armenia	Record high minimum temperature	16.4 C (61.5 F)	37 of 100 (Notable)
Huamuxtitlan (Dge)	Mexico	Record high maximum temperature	46.7 C (116.1 F)	37 of 100 (Notable)
Colebrook 3SW	United States	Record daily precipitation	50.8 mm (2.0 in)	37 of 100 (Notable)
Lushi	China	Record daily precipitation	37.5 mm (1.5 in)	36 of 100 (Notable)
Presa El Niagara	Mexico	Record high maximum temperature	38.3 C (100.9 F)	36 of 100 (Notable)
San Jose	Mexico	Record high maximum temperature	38.9 C (102.0 F)	36 of 100 (Notable)
Atzalan	Mexico	Record high maximum temperature	38.9 C (102.0 F)	36 of 100 (Notable)
Urjupinsk	Russia	Record daily precipitation	28.5 mm (1.1 in)	36 of 100 (Notable)
Steffenville	United States	Record daily precipitation	47.5 mm (1.9 in)	36 of 100 (Notable)
San Marcos	United States	Record high maximum temperature	37.8 C (100.0 F)	36 of 100 (Notable)
Tlacotepec	Mexico	Record high maximum temperature	38.9 C (102.0 F)	35 of 100 (Notable)
Cabezones	Mexico	Record high maximum temperature	43.9 C (111.0 F)	35 of 100 (Notable)
La Maroma	Mexico	Record high maximum temperature	38.9 C (102.0 F)	35 of 100 (Notable)
Franklin	United States	Record daily precipitation	39.1 mm (1.5 in)	35 of 100 (Notable)
Teziutlan	Mexico	Record high maximum temperature	37.8 C (100.0 F)	34 of 100 (Routine)
Weatherford	United States	Record high maximum temperature	36.7 C (98.1 F)	34 of 100 (Routine)
Blaine	United States	Record high minimum temperature	11.1 C (52.0 F)	34 of 100 (Routine)
Pericos	Mexico	Record high maximum temperature	36.7 C (98.1 F)	33 of 100 (Routine)
San Luis de la Paz	Mexico	Record high maximum temperature	37.8 C (100.0 F)	33 of 100 (Routine)
Ixtlahuaca (Smn)	Mexico	Record high maximum temperature	32.2 C (90.0 F)	33 of 100 (Routine)
Roldal	Norway	Record daily precipitation	29.0 mm (1.1 in)	33 of 100 (Routine)
Park Forest Water	United States	Record daily precipitation	47.0 mm (1.9 in)	33 of 100 (Routine)
Chariton 1 E	United States	Record daily precipitation	67.3 mm (2.6 in)	33 of 100 (Routine)
Brassua Dam	United States	Record high minimum temperature	10.0 C (50.0 F)	33 of 100 (Routine)
Squa Pan Dam	United States	Record high minimum temperature	12.8 C (55.0 F)	33 of 100 (Routine)
Taylor	United States	Record high maximum temperature	37.8 C (100.0 F)	33 of 100 (Routine)
Tuxcueca	Mexico	Record high maximum temperature	35.0 C (95.0 F)	32 of 100 (Routine)
Rayon	Mexico	Record high maximum temperature	45.0 C (113.0 F)	32 of 100 (Routine)
Santa Maria del Refugio	Mexico	Record high maximum temperature	41.7 C (107.1 F)	32 of 100 (Routine)
Ojo de Agua Seco	Mexico	Record high maximum temperature	42.8 C (109.0 F)	32 of 100 (Routine)
Capitan Emilio Carranza	Mexico	Record high maximum temperature	43.9 C (111.0 F)	32 of 100 (Routine)
Garro	Mexico	Record high maximum temperature	44.4 C (111.9 F)	32 of 100 (Routine)
Jackson Exp STN	United States	Record daily precipitation	84.6 mm (3.3 in)	32 of 100 (Routine)

Counts by Type and Timescale

1,166 records

Records set or tied on 7 May 1998 by type: Highest daily maximum 513, Lowest daily maximum 88, Highest daily minimum 290, Lowest daily minimum 65, Heaviest daily rainfall 202, Heaviest daily snowfall 5, Deepest snow cover 3.

Records on 7 May 1998 by type
Record type	Records
Highest daily maximum	513
Lowest daily maximum	88
Highest daily minimum	290
Lowest daily minimum	65
Heaviest daily rainfall	202
Heaviest daily snowfall	5
Deepest snow cover	3

Records on 7 May 1998 by timescale: all-time 71, monthly 91, daily 1,004.

How Much Records Were Beaten By

868 broken records

Margins by which the 868 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 47.3. Ties are not counted.

Top 20 by Significance

7 May 1998

Top 20 records on 7 May 1998 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
7 May 1998	Dehradun, IN	daily rain	58.9 mm (2.3 in)	33.0 mm (1.3 in)	80 years	64 of 100 (Major)
7 May 1998	Greensboro AP, US	daily rain	56.1 mm (2.2 in)	34.0 mm (1.3 in)	56 years	54 of 100 (Notable)
7 May 1998	Nesflaten, NO	monthly rain	51.7 mm (2.0 in)	19.7 mm (0.8 in)	25 years	53 of 100 (Notable)
7 May 1998	Dresden, US	daily rain	95.3 mm (3.8 in)	38.1 mm (1.5 in)	68 years	52 of 100 (Notable)
7 May 1998	Paris 3 ESE, US	daily rain	80.5 mm (3.2 in)	32.0 mm (1.3 in)	48 years	46 of 100 (Notable)
7 May 1998	Plantersville 2 SSE, US	daily rain	75.7 mm (3.0 in)	47.3 mm (1.9 in)	37 years	45 of 100 (Notable)
7 May 1998	Suldalsvatn, NO	daily rain	40.4 mm (1.6 in)	8.4 mm (0.33 in)	76 years	44 of 100 (Notable)
7 May 1998	Villa Obregon, MX	all-time high max	40.6 C (105.1 F)	1.7 C (3.1 F)	40 years	43 of 100 (Notable)
7 May 1998	Brackettville, US	daily high max	40.0 C (104.0 F)	3.3 C (5.9 F)	81 years	43 of 100 (Notable)
7 May 1998	Piaxtla, MX	monthly high max	42.8 C (109.0 F)	1.1 C (2.0 F)	71 years	42 of 100 (Notable)
7 May 1998	San Luis Potosi (Dge), MX	all-time high max	36.7 C (98.1 F)	1.1 C (2.0 F)	48 years	42 of 100 (Notable)
7 May 1998	Channahon Dresden Isl Dam, US	daily rain	52.1 mm (2.1 in)	32.5 mm (1.3 in)	25 years	42 of 100 (Notable)
7 May 1998	Kailua 446, US	daily low max	18.9 C (66.0 F)	1.1 C (2.0 F)	88 years	42 of 100 (Notable)
7 May 1998	Chicago Ohare Intl AP, US	daily rain	52.6 mm (2.1 in)	29.5 mm (1.2 in)	36 years	42 of 100 (Notable)
7 May 1998	Bulken, NO	daily rain	31.3 mm (1.2 in)	5.1 mm (0.20 in)	76 years	41 of 100 (Notable)
7 May 1998	Nhill, AU	daily low max	12.4 C (54.3 F)	0.4 C (0.7 F)	99 years	40 of 100 (Notable)
7 May 1998	Boquilla Numero Uno, MX	all-time high max	41.7 C (107.1 F)	0.6 C (1.1 F)	46 years	40 of 100 (Notable)
7 May 1998	Indianola 1SW, US	daily rain	66.8 mm (2.6 in)	27.7 mm (1.1 in)	25 years	40 of 100 (Notable)
7 May 1998	Coupeville 1 S, US	daily high min	10.6 C (51.1 F)	0.6 C (1.1 F)	96 years	40 of 100 (Notable)
7 May 1998	Kalinga, AU	daily rain	44.0 mm (1.7 in)	40.7 mm (1.6 in)	25 years	39 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

1795 to 1998

Records set or tied on this calendar date in each year from 1795 to 1998. 1998 had 1,166 records.

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

Records on 05-07 in each year
Year	Records
1795	2
1805	1
1816	1
1825	2
1837	1
1838	1
1844	1
1845	2
1846	1
1848	2
1850	2
1852	1
1853	1
1856	3
1857	1
1861	3
1862	1
1863	1
1864	1
1867	3
1869	1
1870	1
1872	1
1874	2
1876	3
1878	1
1879	2
1880	1
1884	2
1885	1
1886	4
1887	1
1888	1
1889	2
1890	4
1891	4
1892	2
1894	4
1895	2
1897	5
1898	7
1899	3
1900	10
1901	1
1902	6
1903	13
1904	19
1905	21
1906	15
1907	14
1908	29
1909	15
1910	16
1911	14
1912	14
1913	30
1914	37
1915	40
1916	34
1917	188
1918	60
1919	263
1920	59
1921	41
1922	40
1923	119
1924	141
1925	207
1926	227
1927	191
1928	204
1929	224
1930	637
1931	473
1932	288
1933	291
1934	698
1935	298
1936	466
1937	121
1938	467
1939	194
1940	317
1941	317
1942	270
1943	416
1944	476
1945	751
1946	339
1947	727
1948	338
1949	439
1950	526
1951	226
1952	485
1953	541
1954	481
1955	393
1956	665
1957	546
1958	585
1959	335
1960	899
1961	442
1962	381
1963	825
1964	687
1965	671
1966	762
1967	973
1968	756
1969	678
1970	822
1971	364
1972	515
1973	447
1974	743
1975	784
1976	782
1977	662
1978	925
1979	888
1980	593
1981	710
1982	802
1983	724
1984	1,300
1985	557
1986	1,163
1987	1,115
1988	752
1989	1,880
1990	1,024
1991	599
1992	1,830
1993	831
1994	621
1995	997
1996	880
1997	1,359
1998	1,166
1999	1,008
2000	1,693
2001	743
2002	1,344
2003	1,138
2004	1,397
2005	645
2006	833
2007	1,047
2008	526
2009	735
2010	1,123
2011	558
2012	709
2013	633
2014	646
2015	569
2016	677
2017	543
2018	542
2019	522
2020	577
2021	484
2022	784
2023	667
2024	858
2025	635
2026	715

Download the Data

Data for records on 1998-05-07: 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).

Histogram of margins by which records were beaten on 7 May 1998
Margin	Records
0 to 10	805
10 to 20	36
20 to 30	17
30 to 40	7
40 to 50	3