Weather Records on 15 May 2001

1,280 weather records were set or tied worldwide on 15 May 2001. Highest significance: Hastings, US.

Key Facts for 15 May 2001

On 15 May 2001, 1,280 weather records were set or tied at long-record stations worldwide.
856 were record highs and 172 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 41 monthly and 1,237 daily.
Hastings set a daily record precipitation of 64.5 mm (2.5 in) on 15 May 2001.
Across 162 earlier years (1820 to 2026) the same calendar date averaged 425 records.

Record Map

1,280 stations

1,280 station records on 15 May 2001 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 May 2001: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hastings	United States	Record daily precipitation	64.5 mm (2.5 in)	78 of 100 (Major)
Kent City 2 SW	United States	Record daily precipitation	72.6 mm (2.9 in)	66 of 100 (Major)
Hart 3 WSW	United States	Record daily precipitation	118.1 mm (4.6 in)	63 of 100 (Major)
Montague 4 NW	United States	Record daily precipitation	61.5 mm (2.4 in)	62 of 100 (Major)
Ludington 4 SE	United States	Record daily precipitation	81.3 mm (3.2 in)	59 of 100 (Notable)
Three Lynx	United States	Record daily precipitation	52.8 mm (2.1 in)	55 of 100 (Notable)
Zimnegorskij Majak	Russia	Record daily precipitation	49.0 mm (1.9 in)	54 of 100 (Notable)
Lowell	United States	Record daily precipitation	52.1 mm (2.1 in)	54 of 100 (Notable)
Cacahoatan	Mexico	Record daily precipitation	199.4 mm (7.9 in)	52 of 100 (Notable)
Dorado 2 WNW	Puerto Rico [United States]	Record high minimum temperature	28.9 C (84.0 F)	50 of 100 (Notable)
Snake Rvr	United States	Record high minimum temperature	5.6 C (42.1 F)	49 of 100 (Notable)
Traverse Cy Cherry Capital AP	United States	Record daily precipitation	35.8 mm (1.4 in)	47 of 100 (Notable)
Big Rapids Wtp	United States	Record daily precipitation	30.5 mm (1.2 in)	46 of 100 (Notable)
Tenosique (Smn)	Mexico	Record low minimum temperature	15.0 C (59.0 F)	44 of 100 (Notable)
Allegan 5NE	United States	Record daily precipitation	38.1 mm (1.5 in)	44 of 100 (Notable)
Flatwillow 4 ENE	United States	Record high minimum temperature	17.2 C (63.0 F)	44 of 100 (Notable)
Aralskoe More	Kazakhstan	Record high maximum temperature	37.2 C (99.0 F)	43 of 100 (Notable)
Atlantic 1 NE	United States	Record high minimum temperature	20.6 C (69.1 F)	43 of 100 (Notable)
Farmington 3NW	United States	Record high minimum temperature	20.6 C (69.1 F)	43 of 100 (Notable)
Seward	United States	Record high minimum temperature	21.7 C (71.1 F)	43 of 100 (Notable)
Rocky Mt	United States	Record daily precipitation	53.6 mm (2.1 in)	43 of 100 (Notable)
Herbayum	Netherlands	Record daily precipitation	26.4 mm (1.0 in)	42 of 100 (Notable)
Abilene	United States	Record high maximum temperature	34.4 C (93.9 F)	42 of 100 (Notable)
Fairmont	United States	Record high maximum temperature	32.8 C (91.0 F)	42 of 100 (Notable)
Findlay Wpcc	United States	Record daily precipitation	47.5 mm (1.9 in)	42 of 100 (Notable)
Palizada	Mexico	Record low minimum temperature	16.7 C (62.1 F)	41 of 100 (Notable)
Anderson 1 N	United States	Record high maximum temperature	31.7 C (89.1 F)	41 of 100 (Notable)
Angola	United States	Record daily precipitation	40.6 mm (1.6 in)	41 of 100 (Notable)
Delphi 2 N	United States	Record high maximum temperature	33.9 C (93.0 F)	41 of 100 (Notable)
Charles City	United States	Record high maximum temperature	32.8 C (91.0 F)	41 of 100 (Notable)
Charles City	United States	Record high minimum temperature	20.6 C (69.1 F)	41 of 100 (Notable)
Logan 1 WNW	United States	Record high maximum temperature	32.8 C (91.0 F)	41 of 100 (Notable)
New Hampton	United States	Record high minimum temperature	20.0 C (68.0 F)	41 of 100 (Notable)
Onawa 3NW	United States	Record high maximum temperature	35.6 C (96.1 F)	41 of 100 (Notable)
Cambridge	United States	Record high maximum temperature	32.2 C (90.0 F)	41 of 100 (Notable)
Columbus 3 NE	United States	Record high minimum temperature	21.1 C (70.0 F)	41 of 100 (Notable)
Estacada 2 SE	United States	Record daily precipitation	36.3 mm (1.4 in)	41 of 100 (Notable)
Aurora Water	United States	Record high maximum temperature	32.2 C (90.0 F)	40 of 100 (Notable)
Gull Lake Biological STN	United States	Record daily precipitation	39.6 mm (1.6 in)	40 of 100 (Notable)
Holdrege	United States	Record high minimum temperature	17.8 C (64.0 F)	40 of 100 (Notable)
Belknap Springs 8 N	United States	Record daily precipitation	57.4 mm (2.3 in)	40 of 100 (Notable)
Detroit Dam	United States	Record daily precipitation	63.5 mm (2.5 in)	40 of 100 (Notable)
Brookings 2 NE	United States	Record high maximum temperature	33.9 C (93.0 F)	40 of 100 (Notable)
Milbank 4 NW	United States	Record high maximum temperature	35.6 C (96.1 F)	40 of 100 (Notable)
Toledo Express AP	United States	Record daily precipitation	34.8 mm (1.4 in)	40 of 100 (Notable)
Long Prairie	United States	Record high maximum temperature	33.3 C (91.9 F)	39 of 100 (Notable)
Hastings 4N	United States	Record high minimum temperature	19.4 C (66.9 F)	39 of 100 (Notable)
Superior	United States	Record high minimum temperature	20.0 C (68.0 F)	39 of 100 (Notable)
Douglas 1 SE	United States	Record high minimum temperature	13.9 C (57.0 F)	39 of 100 (Notable)
Sheldon	United States	Record high maximum temperature	32.8 C (91.0 F)	38 of 100 (Notable)
Greeley	United States	Record high minimum temperature	17.2 C (63.0 F)	38 of 100 (Notable)
Walthill 1E	United States	Record high minimum temperature	21.1 C (70.0 F)	38 of 100 (Notable)
York	United States	Record high minimum temperature	18.9 C (66.0 F)	38 of 100 (Notable)
Richland	United States	Record high minimum temperature	19.4 C (66.9 F)	38 of 100 (Notable)
Grand Rapids	United States	Record daily precipitation	105.4 mm (4.1 in)	38 of 100 (Notable)
Bajramaly	Turkmenistan	Record high maximum temperature	40.5 C (104.9 F)	37 of 100 (Notable)
Cascadia	United States	Record daily precipitation	33.0 mm (1.3 in)	37 of 100 (Notable)
Government Camp	United States	Record daily precipitation	49.5 mm (1.9 in)	37 of 100 (Notable)
Marion Forks Fish Hatchery	United States	Record daily precipitation	56.9 mm (2.2 in)	37 of 100 (Notable)
Darlington Wwtp	United States	Record high minimum temperature	19.4 C (66.9 F)	37 of 100 (Notable)

Counts by Type and Timescale

1,280 records

Records set or tied on 15 May 2001 by type: Highest daily maximum 460, Lowest daily maximum 59, Highest daily minimum 396, Lowest daily minimum 113, Heaviest daily rainfall 251, Deepest snow cover 1.

Records on 15 May 2001 by type
Record type	Records
Highest daily maximum	460
Lowest daily maximum	59
Highest daily minimum	396
Lowest daily minimum	113
Heaviest daily rainfall	251
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 15 May 2001 by timescale: all-time 2, monthly 41, daily 1,237.

How Much Records Were Beaten By

984 broken records

Margins by which the 984 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 119.1. Ties are not counted.

Top 20 by Significance

15 May 2001

Top 20 records on 15 May 2001 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 May 2001	Hastings, US	daily rain	64.5 mm (2.5 in)	35.0 mm (1.4 in)	106 years	78 of 100 (Major)
15 May 2001	Kent City 2 SW, US	daily rain	72.6 mm (2.9 in)	50.0 mm (2.0 in)	60 years	66 of 100 (Major)
15 May 2001	Hart 3 WSW, US	monthly rain	118.1 mm (4.6 in)	42.9 mm (1.7 in)	11 years	63 of 100 (Major)
15 May 2001	Montague 4 NW, US	daily rain	61.5 mm (2.4 in)	36.1 mm (1.4 in)	48 years	62 of 100 (Major)
15 May 2001	Ludington 4 SE, US	daily rain	81.3 mm (3.2 in)	53.4 mm (2.1 in)	32 years	59 of 100 (Notable)
15 May 2001	Three Lynx, US	daily rain	52.8 mm (2.1 in)	23.6 mm (0.9 in)	56 years	55 of 100 (Notable)
15 May 2001	Zimnegorskij Majak, RU	daily rain	49.0 mm (1.9 in)	38.3 mm (1.5 in)	28 years	54 of 100 (Notable)
15 May 2001	Lowell, US	daily rain	52.1 mm (2.1 in)	28.0 mm (1.1 in)	60 years	54 of 100 (Notable)
15 May 2001	Cacahoatan, MX	daily rain	199.4 mm (7.9 in)	119.1 mm (4.7 in)	26 years	52 of 100 (Notable)
15 May 2001	Dorado 2 WNW, PR	all-time high min	28.9 C (84.0 F)	1.1 C (2.0 F)	50 years	50 of 100 (Notable)
15 May 2001	Snake Rvr, US	daily high min	5.6 C (42.1 F)	4.5 C (8.1 F)	90 years	49 of 100 (Notable)
15 May 2001	Traverse Cy Cherry Capital AP, US	daily rain	35.8 mm (1.4 in)	9.4 mm (0.37 in)	90 years	47 of 100 (Notable)
15 May 2001	Big Rapids Wtp, US	daily rain	30.5 mm (1.2 in)	8.9 mm (0.35 in)	88 years	46 of 100 (Notable)
15 May 2001	Tenosique (Smn), MX	monthly low min	15.0 C (59.0 F)	0.6 C (1.1 F)	78 years	44 of 100 (Notable)
15 May 2001	Allegan 5NE, US	daily rain	38.1 mm (1.5 in)	14.2 mm (0.6 in)	78 years	44 of 100 (Notable)
15 May 2001	Flatwillow 4 ENE, US	monthly high min	17.2 C (63.0 F)	1.1 C (2.0 F)	81 years	44 of 100 (Notable)
15 May 2001	Aralskoe More, KZ	daily high max	37.2 C (99.0 F)	3.8 C (6.8 F)	95 years	43 of 100 (Notable)
15 May 2001	Atlantic 1 NE, US	daily high min	20.6 C (69.1 F)	1.7 C (3.1 F)	106 years	43 of 100 (Notable)
15 May 2001	Farmington 3NW, US	daily high min	20.6 C (69.1 F)	1.7 C (3.1 F)	106 years	43 of 100 (Notable)
15 May 2001	Seward, US	daily high min	21.7 C (71.1 F)	3.4 C (6.1 F)	90 years	43 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

1820 to 2001

Records set or tied on this calendar date in each year from 1820 to 2001. 2001 had 1,280 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 2001-05-15: 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).

Histogram of margins by which records were beaten on 15 May 2001
Margin	Records
0 to 20	967
20 to 40	12
40 to 60	3
60 to 80	1
80 to 100	0
100 to 120	1