Weather Records on 15 May 2020

472 weather records were set or tied worldwide on 15 May 2020. Highest significance: Cleveland, US.

Key Facts for 15 May 2020

On 15 May 2020, 472 weather records were set or tied at long-record stations worldwide.
134 were record highs and 177 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 6 monthly and 466 daily.
Cleveland set a daily record precipitation of 60.5 mm (2.4 in) on 15 May 2020.
Across 162 earlier years (1820 to 2026) the same calendar date averaged 430 records.

Record Map

472 stations

472 station records on 15 May 2020 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 May 2020: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cleveland	United States	Record daily precipitation	60.5 mm (2.4 in)	65 of 100 (Major)
Thibodaux 4 SE	United States	Record daily precipitation	148.8 mm (5.9 in)	63 of 100 (Major)
Aurora Water	United States	Record daily precipitation	60.7 mm (2.4 in)	57 of 100 (Notable)
Galesburg	United States	Record daily precipitation	63.5 mm (2.5 in)	56 of 100 (Notable)
Albia 3 NNE	United States	Record daily precipitation	62.5 mm (2.5 in)	56 of 100 (Notable)
Kankakee Wwtp	United States	Record daily precipitation	99.3 mm (3.9 in)	55 of 100 (Notable)
Muzi	Russia	Record daily precipitation	46.0 mm (1.8 in)	54 of 100 (Notable)
Oskaloosa	United States	Record daily precipitation	38.6 mm (1.5 in)	54 of 100 (Notable)
Donaldsonville 4 SW	United States	Record daily precipitation	112.0 mm (4.4 in)	53 of 100 (Notable)
Pattonsburg 2S	United States	Record daily precipitation	90.2 mm (3.6 in)	53 of 100 (Notable)
Augusta	United States	Record daily precipitation	59.2 mm (2.3 in)	51 of 100 (Notable)
Dixon Wwtp	United States	Record daily precipitation	68.3 mm (2.7 in)	50 of 100 (Notable)
Hirado	Japan	Record daily precipitation	120.9 mm (4.8 in)	49 of 100 (Notable)
Donnellson	United States	Record daily precipitation	50.5 mm (2.0 in)	47 of 100 (Notable)
Morgan City	United States	Record daily precipitation	101.3 mm (4.0 in)	46 of 100 (Notable)
Owosso Wwtp	United States	Record daily precipitation	35.1 mm (1.4 in)	46 of 100 (Notable)
Tipton 4S Mesonet	United States	Record daily precipitation	72.6 mm (2.9 in)	46 of 100 (Notable)
Antichan	France	Record daily precipitation	51.1 mm (2.0 in)	45 of 100 (Notable)
Karesuando	Sweden	Record snow depth	65.0 cm (25.6 in)	44 of 100 (Notable)
Aledo	United States	Record daily precipitation	35.1 mm (1.4 in)	44 of 100 (Notable)
Gonzales	United States	Record daily precipitation	137.2 mm (5.4 in)	44 of 100 (Notable)
Jeanerette 5 NW	United States	Record daily precipitation	77.7 mm (3.1 in)	43 of 100 (Notable)
Eelde	Netherlands	Record low minimum temperature	-2.9 C (26.8 F)	42 of 100 (Notable)
Babuskin	Russia	Record daily precipitation	33.0 mm (1.3 in)	42 of 100 (Notable)
Knox Wwtp	United States	Record daily precipitation	40.9 mm (1.6 in)	42 of 100 (Notable)
Elgin Water	United States	Record daily precipitation	75.4 mm (3.0 in)	41 of 100 (Notable)
Holton	United States	Record daily precipitation	57.2 mm (2.3 in)	41 of 100 (Notable)
Grand Ledge 1 NW	United States	Record daily precipitation	61.0 mm (2.4 in)	41 of 100 (Notable)
Kenai AP	United States	Record high maximum temperature	19.4 C (66.9 F)	41 of 100 (Notable)
Bremen-Seefahrtschule	Germany	Record low minimum temperature	-0.2 C (31.6 F)	40 of 100 (Notable)
Minonk	United States	Record daily precipitation	48.3 mm (1.9 in)	40 of 100 (Notable)
Paw Paw 2S	United States	Record daily precipitation	40.9 mm (1.6 in)	40 of 100 (Notable)
Walnut	United States	Record daily precipitation	47.0 mm (1.9 in)	40 of 100 (Notable)
Pella 1S	United States	Record daily precipitation	30.7 mm (1.2 in)	40 of 100 (Notable)
Eskridge	United States	Record daily precipitation	41.9 mm (1.6 in)	40 of 100 (Notable)
Clinton #1	United States	Record daily precipitation	38.1 mm (1.5 in)	39 of 100 (Notable)
El Dorado Goodwin Fld	United States	Record daily precipitation	47.2 mm (1.9 in)	39 of 100 (Notable)
Sokode	Togo	Record high minimum temperature	25.0 C (77.0 F)	38 of 100 (Notable)
Barrington 3SW	United States	Record daily precipitation	68.8 mm (2.7 in)	38 of 100 (Notable)
Potwin	United States	Record daily precipitation	71.4 mm (2.8 in)	38 of 100 (Notable)
Glomfjord	Norway	Record low minimum temperature	-2.1 C (28.2 F)	37 of 100 (Notable)
Legaspi	Philippines	Record daily precipitation	117.3 mm (4.6 in)	37 of 100 (Notable)
Legaspi	Philippines	Record low maximum temperature	28.5 C (83.3 F)	36 of 100 (Notable)
Kewanee 1E	United States	Record daily precipitation	41.1 mm (1.6 in)	36 of 100 (Notable)
Norwich	United States	Record low minimum temperature	-3.9 C (25.0 F)	36 of 100 (Notable)
Elmira Corning Rgnl AP	United States	Record daily precipitation	27.7 mm (1.1 in)	36 of 100 (Notable)
Kellerberrin	Australia	Record high maximum temperature	29.2 C (84.6 F)	35 of 100 (Notable)
Kurdjali	Bulgaria	Record high minimum temperature	18.0 C (64.4 F)	34 of 100 (Routine)
Hamburg Fuhlsbuettel	Germany	Record low minimum temperature	-0.4 C (31.3 F)	34 of 100 (Routine)
Eide Pa Nordmore	Norway	Record snow depth	10.0 cm (3.9 in)	34 of 100 (Routine)
Zaragoza	Spain	Record daily precipitation	29.7 mm (1.2 in)	34 of 100 (Routine)
Avon	United States	Record daily precipitation	50.0 mm (2.0 in)	34 of 100 (Routine)
Bloomington Wtr Wks	United States	Record daily precipitation	49.3 mm (1.9 in)	34 of 100 (Routine)
De Kalb	United States	Record daily precipitation	64.0 mm (2.5 in)	34 of 100 (Routine)
Lowell Wwtp	United States	Record daily precipitation	61.2 mm (2.4 in)	34 of 100 (Routine)
Beaumont City	United States	Record daily precipitation	129.5 mm (5.1 in)	34 of 100 (Routine)
Kenosha Wwtp	United States	Record daily precipitation	25.4 mm (1.0 in)	34 of 100 (Routine)
Sarajevo	Bosnia and Herzegovina	Record high minimum temperature	20.4 C (68.7 F)	33 of 100 (Routine)
Ouesso	Congo (Brazzaville)	Record high minimum temperature	23.6 C (74.5 F)	33 of 100 (Routine)
Wisley	United Kingdom	Record low minimum temperature	-1.0 C (30.2 F)	33 of 100 (Routine)

Counts by Type and Timescale

472 records

Records set or tied on 15 May 2020 by type: Highest daily maximum 60, Lowest daily maximum 46, Highest daily minimum 74, Lowest daily minimum 131, Heaviest daily rainfall 148, Deepest snow cover 13.

Records on 15 May 2020 by type
Record type	Records
Highest daily maximum	60
Lowest daily maximum	46
Highest daily minimum	74
Lowest daily minimum	131
Heaviest daily rainfall	148
Heaviest daily snowfall	0
Deepest snow cover	13

Records on 15 May 2020 by timescale: all-time 0, monthly 6, daily 466.

How Much Records Were Beaten By

415 broken records

Margins by which the 415 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 390.0. Ties are not counted.

Top 20 by Significance

15 May 2020

Top 20 records on 15 May 2020 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 May 2020	Cleveland, US	daily rain	60.5 mm (2.4 in)	30.0 mm (1.2 in)	78 years	65 of 100 (Major)
15 May 2020	Thibodaux 4 SE, US	daily rain	148.8 mm (5.9 in)	131.0 mm (5.2 in)	45 years	63 of 100 (Major)
15 May 2020	Aurora Water, US	daily rain	60.7 mm (2.4 in)	19.3 mm (0.8 in)	120 years	57 of 100 (Notable)
15 May 2020	Galesburg, US	daily rain	63.5 mm (2.5 in)	29.7 mm (1.2 in)	75 years	56 of 100 (Notable)
15 May 2020	Albia 3 NNE, US	daily rain	62.5 mm (2.5 in)	29.5 mm (1.2 in)	75 years	56 of 100 (Notable)
15 May 2020	Kankakee Wwtp, US	daily rain	99.3 mm (3.9 in)	60.7 mm (2.4 in)	29 years	55 of 100 (Notable)
15 May 2020	Muzi, RU	daily rain	46.0 mm (1.8 in)	28.0 mm (1.1 in)	21 years	54 of 100 (Notable)
15 May 2020	Oskaloosa, US	daily rain	38.6 mm (1.5 in)	17.0 mm (0.7 in)	120 years	54 of 100 (Notable)
15 May 2020	Donaldsonville 4 SW, US	daily rain	112.0 mm (4.4 in)	33.3 mm (1.3 in)	115 years	53 of 100 (Notable)
15 May 2020	Pattonsburg 2S, US	daily rain	90.2 mm (3.6 in)	57.9 mm (2.3 in)	29 years	53 of 100 (Notable)
15 May 2020	Augusta, US	daily rain	59.2 mm (2.3 in)	19.6 mm (0.8 in)	123 years	51 of 100 (Notable)
15 May 2020	Dixon Wwtp, US	daily rain	68.3 mm (2.7 in)	35.5 mm (1.4 in)	35 years	50 of 100 (Notable)
15 May 2020	Hirado, JP	daily rain	120.9 mm (4.8 in)	61.8 mm (2.4 in)	59 years	49 of 100 (Notable)
15 May 2020	Donnellson, US	daily rain	50.5 mm (2.0 in)	22.3 mm (0.9 in)	74 years	47 of 100 (Notable)
15 May 2020	Morgan City, US	daily rain	101.3 mm (4.0 in)	34.8 mm (1.4 in)	74 years	46 of 100 (Notable)
15 May 2020	Owosso Wwtp, US	daily rain	35.1 mm (1.4 in)	6.7 mm (0.26 in)	104 years	46 of 100 (Notable)
15 May 2020	Tipton 4S Mesonet, US	daily rain	72.6 mm (2.9 in)	39.6 mm (1.6 in)	50 years	46 of 100 (Notable)
15 May 2020	Antichan, FR	daily rain	51.1 mm (2.0 in)	33.1 mm (1.3 in)	13 years	45 of 100 (Notable)
15 May 2020	Karesuando, SE	daily snow depth	65.0 cm (25.6 in)	15.0 cm (5.9 in)	85 years	44 of 100 (Notable)
15 May 2020	Aledo, US	daily rain	35.1 mm (1.4 in)	13.8 mm (0.5 in)	77 years	44 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 2020

Records set or tied on this calendar date in each year from 1820 to 2020. 2020 had 472 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 2020-05-15: 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 50	400
50 to 100	8
100 to 150	5
150 to 200	1
200 to 250	0
250 to 300	0
300 to 350	0
350 to 400	1