Weather Records on 1 May 1998

951 weather records were set or tied worldwide on 1 May 1998. Highest significance: Biedenkopf, DE.

Key Facts for 1 May 1998

On 1 May 1998, 951 weather records were set or tied at long-record stations worldwide.
543 were record highs and 232 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 58 monthly and 890 daily.
Biedenkopf set a daily record precipitation of 30.5 mm (1.2 in) on 1 May 1998.
Across 165 earlier years (1795 to 2026) the same calendar date averaged 439 records.

Record Map

951 stations

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

Weather records on 1 May 1998: highest significance records shown on the map
Station	Country	Type	Value	Significance
Biedenkopf	Germany	Record daily precipitation	30.5 mm (1.2 in)	61 of 100 (Major)
New Holland	United States	Record daily precipitation	84.3 mm (3.3 in)	60 of 100 (Major)
Kia Ora Sandy Ridges	Australia	Record daily precipitation	107.4 mm (4.2 in)	58 of 100 (Notable)
Siegen (Klaranlage)	Germany	Record daily precipitation	35.3 mm (1.4 in)	56 of 100 (Notable)
Dillingen/Donau	Germany	Record daily precipitation	43.6 mm (1.7 in)	56 of 100 (Notable)
Atlanta 5 WNW	United States	Record daily precipitation	44.7 mm (1.8 in)	56 of 100 (Notable)
Obersulm-Willsbach	Germany	Record daily precipitation	74.2 mm (2.9 in)	55 of 100 (Notable)
Tonghe	China	Record daily precipitation	37.9 mm (1.5 in)	52 of 100 (Notable)
Niederstotzingen	Germany	Record daily precipitation	26.0 mm (1.0 in)	50 of 100 (Notable)
Abag Qi	China	Record daily precipitation	26.4 mm (1.0 in)	48 of 100 (Notable)
Datong	China	Record daily precipitation	26.2 mm (1.0 in)	48 of 100 (Notable)
Ayutla (Cfe)	Mexico	Record low minimum temperature	11.7 C (53.1 F)	47 of 100 (Notable)
Siping	China	Record daily precipitation	36.6 mm (1.4 in)	45 of 100 (Notable)
Zhangwu	China	Record daily precipitation	36.7 mm (1.4 in)	45 of 100 (Notable)
Babinda Post Office	Australia	Record daily precipitation	110.0 mm (4.3 in)	44 of 100 (Notable)
Lawrence	United States	Record high minimum temperature	16.1 C (61.0 F)	44 of 100 (Notable)
Milford Gm Proving Ground	United States	Record daily precipitation	78.7 mm (3.1 in)	44 of 100 (Notable)
Forest Grove	United States	Record high maximum temperature	33.3 C (91.9 F)	43 of 100 (Notable)
Newport	United States	Record high minimum temperature	11.1 C (52.0 F)	43 of 100 (Notable)
Hatton 9 SE	United States	Record high maximum temperature	31.7 C (89.1 F)	42 of 100 (Notable)
Port Washington	United States	Record high minimum temperature	10.0 C (50.0 F)	42 of 100 (Notable)
Elberton 2 N	United States	Record low maximum temperature	16.1 C (61.0 F)	41 of 100 (Notable)
Hartwell	United States	Record low maximum temperature	15.6 C (60.1 F)	41 of 100 (Notable)
Colville	United States	Record high maximum temperature	31.1 C (88.0 F)	41 of 100 (Notable)
Surbiton Station	Australia	Record daily precipitation	58.0 mm (2.3 in)	39 of 100 (Notable)
Heppner	United States	Record high maximum temperature	28.9 C (84.0 F)	39 of 100 (Notable)
Bethel AP	United States	Record daily snowfall	7.4 cm (2.9 in)	39 of 100 (Notable)
San Jeronimo	Mexico	Record low minimum temperature	10.6 C (51.1 F)	38 of 100 (Notable)
Villaflores (Smn)	Mexico	Record high maximum temperature	41.7 C (107.1 F)	38 of 100 (Notable)
Mukdahan	Thailand	Record high minimum temperature	30.0 C (86.0 F)	38 of 100 (Notable)
Clemson UNIV	United States	Record low maximum temperature	16.1 C (61.0 F)	38 of 100 (Notable)
Goldendale	United States	Record high maximum temperature	30.6 C (87.1 F)	38 of 100 (Notable)
Xilin Hot	China	Record daily precipitation	44.4 mm (1.7 in)	37 of 100 (Notable)
Shenyang	China	Record daily precipitation	31.3 mm (1.2 in)	37 of 100 (Notable)
Gernsheim-Allmendfeld	Germany	Record daily precipitation	80.5 mm (3.2 in)	37 of 100 (Notable)
Prineville	United States	Record high minimum temperature	8.3 C (46.9 F)	37 of 100 (Notable)
Forks 1 E	United States	Record high maximum temperature	27.8 C (82.0 F)	37 of 100 (Notable)
Wilbur	United States	Record high maximum temperature	29.4 C (84.9 F)	37 of 100 (Notable)
San Agustin	Mexico	Record low minimum temperature	-1.1 C (30.0 F)	36 of 100 (Notable)
Cedar Lake	United States	Record high maximum temperature	29.4 C (84.9 F)	36 of 100 (Notable)
Wrixum/Fohr	Germany	Record high minimum temperature	10.2 C (50.4 F)	35 of 100 (Notable)
Yangjiang	China	Record daily precipitation	125.0 mm (4.9 in)	34 of 100 (Routine)
Mc Minnville	United States	Record high maximum temperature	29.4 C (84.9 F)	34 of 100 (Routine)
Zanesville Muni AP	United States	Record daily precipitation	33.0 mm (1.3 in)	34 of 100 (Routine)
Sanzar	Uzbekistan	Record daily precipitation	36.6 mm (1.4 in)	34 of 100 (Routine)
Pfullendorf	Germany	Record daily precipitation	30.1 mm (1.2 in)	33 of 100 (Routine)
Huixtla	Mexico	Record low minimum temperature	18.9 C (66.0 F)	33 of 100 (Routine)
Tasan	Sweden	Record daily precipitation	25.2 mm (1.0 in)	33 of 100 (Routine)
Grangeville	United States	Record high maximum temperature	27.2 C (81.0 F)	33 of 100 (Routine)
Woodbury	United States	Record daily precipitation	48.8 mm (1.9 in)	33 of 100 (Routine)
Eastport	United States	Record high maximum temperature	21.7 C (71.1 F)	33 of 100 (Routine)
Cedar Is	United States	Record daily precipitation	56.4 mm (2.2 in)	33 of 100 (Routine)
Arlington	United States	Record high maximum temperature	32.8 C (91.0 F)	33 of 100 (Routine)
Mudanjiang	China	Record daily precipitation	36.7 mm (1.4 in)	32 of 100 (Routine)
Nordby (Fano)	Denmark	Record high minimum temperature	11.2 C (52.2 F)	32 of 100 (Routine)
East Park Rsvr	United States	Record high minimum temperature	11.7 C (53.1 F)	32 of 100 (Routine)
Gainesville	United States	Record low maximum temperature	15.6 C (60.1 F)	32 of 100 (Routine)
Bonneville Dam	United States	Record high maximum temperature	31.7 C (89.1 F)	32 of 100 (Routine)
Moro	United States	Record high maximum temperature	28.3 C (82.9 F)	32 of 100 (Routine)
Darrington Rs	United States	Record high maximum temperature	33.9 C (93.0 F)	32 of 100 (Routine)

Counts by Type and Timescale

951 records

Records set or tied on 1 May 1998 by type: Highest daily maximum 292, Lowest daily maximum 69, Highest daily minimum 251, Lowest daily minimum 163, Heaviest daily rainfall 172, Heaviest daily snowfall 4.

Records on 1 May 1998 by type
Record type	Records
Highest daily maximum	292
Lowest daily maximum	69
Highest daily minimum	251
Lowest daily minimum	163
Heaviest daily rainfall	172
Heaviest daily snowfall	4
Deepest snow cover	0

Records on 1 May 1998 by timescale: all-time 3, monthly 58, daily 890.

How Much Records Were Beaten By

720 broken records

Margins by which the 720 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 81.3. Ties are not counted.

Top 20 by Significance

1 May 1998

Top 20 records on 1 May 1998 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 May 1998	Biedenkopf, DE	daily rain	30.5 mm (1.2 in)	18.5 mm (0.7 in)	64 years	61 of 100 (Major)
1 May 1998	New Holland, US	daily rain	84.3 mm (3.3 in)	59.7 mm (2.4 in)	41 years	60 of 100 (Major)
1 May 1998	Kia Ora Sandy Ridges, AU	monthly rain	107.4 mm (4.2 in)	23.6 mm (0.9 in)	67 years	58 of 100 (Notable)
1 May 1998	Siegen (Klaranlage), DE	daily rain	35.3 mm (1.4 in)	23.2 mm (0.9 in)	35 years	56 of 100 (Notable)
1 May 1998	Dillingen/Donau, DE	daily rain	43.6 mm (1.7 in)	28.8 mm (1.1 in)	39 years	56 of 100 (Notable)
1 May 1998	Atlanta 5 WNW, US	daily rain	44.7 mm (1.8 in)	24.9 mm (1.0 in)	68 years	56 of 100 (Notable)
1 May 1998	Obersulm-Willsbach, DE	daily rain	74.2 mm (2.9 in)	51.2 mm (2.0 in)	39 years	55 of 100 (Notable)
1 May 1998	Tonghe, CN	daily rain	37.9 mm (1.5 in)	29.5 mm (1.2 in)	28 years	52 of 100 (Notable)
1 May 1998	Niederstotzingen, DE	daily rain	26.0 mm (1.0 in)	14.8 mm (0.6 in)	64 years	50 of 100 (Notable)
1 May 1998	Abag Qi, CN	daily rain	26.4 mm (1.0 in)	18.5 mm (0.7 in)	20 years	48 of 100 (Notable)
1 May 1998	Datong, CN	daily rain	26.2 mm (1.0 in)	21.6 mm (0.9 in)	20 years	48 of 100 (Notable)
1 May 1998	Ayutla (Cfe), MX	monthly low min	11.7 C (53.1 F)	5.0 C (9.0 F)	14 years	47 of 100 (Notable)
1 May 1998	Siping, CN	daily rain	36.6 mm (1.4 in)	24.8 mm (1.0 in)	28 years	45 of 100 (Notable)
1 May 1998	Zhangwu, CN	daily rain	36.7 mm (1.4 in)	30.4 mm (1.2 in)	8 years	45 of 100 (Notable)
1 May 1998	Babinda Post Office, AU	daily rain	110.0 mm (4.3 in)	34.3 mm (1.4 in)	81 years	44 of 100 (Notable)
1 May 1998	Lawrence, US	daily high min	16.1 C (61.0 F)	2.2 C (4.0 F)	98 years	44 of 100 (Notable)
1 May 1998	Milford Gm Proving Ground, US	monthly rain	78.7 mm (3.1 in)	10.6 mm (0.4 in)	54 years	44 of 100 (Notable)
1 May 1998	Forest Grove, US	daily high max	33.3 C (91.9 F)	3.9 C (7.0 F)	88 years	43 of 100 (Notable)
1 May 1998	Newport, US	daily high min	11.1 C (52.0 F)	1.1 C (2.0 F)	97 years	43 of 100 (Notable)
1 May 1998	Hatton 9 SE, US	daily high max	31.7 C (89.1 F)	3.4 C (6.1 F)	92 years	42 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 951 records.

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

Records on 05-01 in each year
Year	Records
1795	1
1802	1
1804	1
1814	1
1818	1
1835	1
1836	1
1840	1
1846	2
1847	1
1850	1
1851	1
1857	1
1860	1
1861	1
1864	2
1865	1
1868	2
1872	1
1875	4
1878	2
1879	2
1880	3
1881	2
1884	1
1885	1
1886	2
1887	2
1888	2
1889	3
1890	2
1891	5
1892	6
1893	2
1894	5
1896	1
1897	4
1898	1
1899	8
1900	1
1901	5
1902	7
1903	9
1904	9
1905	13
1906	12
1907	31
1908	20
1909	49
1910	13
1911	22
1912	18
1913	54
1914	23
1915	27
1916	27
1917	37
1918	34
1919	150
1920	186
1921	41
1922	92
1923	64
1924	63
1925	118
1926	500
1927	125
1928	190
1929	142
1930	263
1931	537
1932	220
1933	706
1934	305
1935	276
1936	368
1937	218
1938	304
1939	227
1940	731
1941	333
1942	1,036
1943	526
1944	229
1945	350
1946	415
1947	655
1948	774
1949	405
1950	439
1951	894
1952	557
1953	917
1954	1,506
1955	772
1956	1,106
1957	359
1958	448
1959	764
1960	737
1961	588
1962	615
1963	704
1964	312
1965	360
1966	707
1967	948
1968	426
1969	429
1970	1,075
1971	444
1972	562
1973	841
1974	589
1975	286
1976	673
1977	545
1978	1,202
1979	612
1980	507
1981	1,265
1982	508
1983	1,423
1984	640
1985	789
1986	512
1987	1,098
1988	1,058
1989	949
1990	922
1991	633
1992	1,201
1993	1,101
1994	1,210
1995	1,365
1996	1,439
1997	804
1998	951
1999	932
2000	809
2001	1,106
2002	1,221
2003	964
2004	887
2005	1,320
2006	734
2007	857
2008	979
2009	679
2010	1,151
2011	716
2012	796
2013	976
2014	941
2015	550
2016	844
2017	1,163
2018	519
2019	788
2020	1,099
2021	834
2022	319
2023	912
2024	458
2025	430
2026	623

Download the Data

Data for records on 1998-05-01: 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	695
20 to 40	22
40 to 60	2
60 to 80	0
80 to 100	1