Weather Records on 9 May 2021

501 weather records were set or tied worldwide on 9 May 2021. Highest significance: Bijie, CN.

Key Facts for 9 May 2021

On 9 May 2021, 501 weather records were set or tied at long-record stations worldwide.
185 were record highs and 116 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 493 daily.
Bijie set a daily record precipitation of 120.9 mm (4.8 in) on 9 May 2021.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 432 records.

Record Map

501 stations

501 station records on 9 May 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 May 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bijie	China	Record daily precipitation	120.9 mm (4.8 in)	61 of 100 (Major)
Wooster Exp STN	United States	Record daily precipitation	50.3 mm (2.0 in)	57 of 100 (Notable)
Bowling Green Wwtp	United States	Record daily precipitation	36.1 mm (1.4 in)	53 of 100 (Notable)
Mullaley (Bando)	Australia	Record daily precipitation	30.2 mm (1.2 in)	51 of 100 (Notable)
Lufkin Angelina Co AP	United States	Record daily precipitation	91.2 mm (3.6 in)	50 of 100 (Notable)
Seychelles Internat	Seychelles	Record daily precipitation	82.0 mm (3.2 in)	48 of 100 (Notable)
Mackinaw 3WSW	United States	Record daily precipitation	48.5 mm (1.9 in)	46 of 100 (Notable)
Le Claire L&D 14	United States	Record daily precipitation	38.6 mm (1.5 in)	44 of 100 (Notable)
Tizi Ouzou	Algeria	Record high minimum temperature	20.1 C (68.2 F)	43 of 100 (Notable)
Rockville	United States	Record daily precipitation	30.5 mm (1.2 in)	43 of 100 (Notable)
Sugar Land	United States	Record high minimum temperature	25.6 C (78.1 F)	43 of 100 (Notable)
Celina 3 NE	United States	Record daily precipitation	60.2 mm (2.4 in)	42 of 100 (Notable)
Pearsall	United States	Record high minimum temperature	26.1 C (79.0 F)	42 of 100 (Notable)
Glennville 3NW	United States	Record low minimum temperature	7.2 C (45.0 F)	41 of 100 (Notable)
Mt Pleasant 1 SW	United States	Record daily precipitation	62.0 mm (2.4 in)	41 of 100 (Notable)
Streator 2SE	United States	Record daily precipitation	50.8 mm (2.0 in)	40 of 100 (Notable)
Kokomo 3 WSW	United States	Record daily precipitation	34.5 mm (1.4 in)	40 of 100 (Notable)
Winamac 2SSE	United States	Record daily precipitation	37.3 mm (1.5 in)	40 of 100 (Notable)
Cleveland	United States	Record daily precipitation	28.7 mm (1.1 in)	40 of 100 (Notable)
Akron Canton AP	United States	Record daily precipitation	51.3 mm (2.0 in)	40 of 100 (Notable)
Ottawa 4SW	United States	Record daily precipitation	53.3 mm (2.1 in)	39 of 100 (Notable)
Youngstown-Warren Rgnl AP	United States	Record daily precipitation	37.1 mm (1.5 in)	39 of 100 (Notable)
Sattahip	Thailand	Record low minimum temperature	21.1 C (70.0 F)	38 of 100 (Notable)
Sugar City	United States	Record low minimum temperature	-6.7 C (19.9 F)	38 of 100 (Notable)
Saco 1 NNW	United States	Record daily snowfall	5.1 cm (2.0 in)	38 of 100 (Notable)
Anyang	China	Record high maximum temperature	36.8 C (98.2 F)	37 of 100 (Notable)
Hallettsville 2 N	United States	Record high minimum temperature	25.0 C (77.0 F)	37 of 100 (Notable)
Lviv	Ukraine	Record low minimum temperature	-1.1 C (30.0 F)	36 of 100 (Notable)
Gettysburg	United States	Record low maximum temperature	6.1 C (43.0 F)	36 of 100 (Notable)
Congerville 2NW	United States	Record daily precipitation	58.9 mm (2.3 in)	35 of 100 (Notable)
Elgin	United States	Record daily snowfall	10.2 cm (4.0 in)	35 of 100 (Notable)
Luling	United States	Record high minimum temperature	25.0 C (77.0 F)	35 of 100 (Notable)
Clanton	United States	Record high maximum temperature	36.1 C (97.0 F)	34 of 100 (Routine)
Glenwood Spgs #2	United States	Record high minimum temperature	12.8 C (55.0 F)	34 of 100 (Routine)
Fairbury Wwtp	United States	Record daily precipitation	55.9 mm (2.2 in)	34 of 100 (Routine)
Augusta	United States	Record daily precipitation	40.6 mm (1.6 in)	33 of 100 (Routine)
Muncie Delaware Co AP	United States	Record daily precipitation	39.6 mm (1.6 in)	33 of 100 (Routine)
Avon	United States	Record daily precipitation	47.0 mm (1.9 in)	32 of 100 (Routine)
Nelson	United States	Record daily precipitation	40.6 mm (1.6 in)	32 of 100 (Routine)
Poteet	United States	Record high minimum temperature	25.0 C (77.0 F)	32 of 100 (Routine)
Moran 5WNW	United States	Record low maximum temperature	3.3 C (37.9 F)	32 of 100 (Routine)
John Glenn Intl AP	United States	Record daily precipitation	36.3 mm (1.4 in)	32 of 100 (Routine)
Jiuquan	China	Record high maximum temperature	30.7 C (87.3 F)	31 of 100 (Routine)
Chenoa	United States	Record daily precipitation	53.3 mm (2.1 in)	31 of 100 (Routine)
Galva	United States	Record daily precipitation	46.2 mm (1.8 in)	31 of 100 (Routine)
Mt Vernon 3 NE	United States	Record low maximum temperature	9.4 C (48.9 F)	30 of 100 (Routine)
Peru	United States	Record daily precipitation	35.6 mm (1.4 in)	30 of 100 (Routine)
Zhengzhou	China	Record high maximum temperature	36.3 C (97.3 F)	29 of 100 (Routine)
Oberstdorf	Germany	Record high maximum temperature	26.4 C (79.5 F)	29 of 100 (Routine)
Poprad/Tatry	Slovakia	Record low minimum temperature	-3.1 C (26.4 F)	29 of 100 (Routine)
Lichinga	Mozambique	Record low minimum temperature	8.0 C (46.4 F)	29 of 100 (Routine)
Narjan Mar	Russia	Record high maximum temperature	16.3 C (61.3 F)	29 of 100 (Routine)
Bloomfield	United States	Record daily precipitation	48.5 mm (1.9 in)	29 of 100 (Routine)
Columbus-Hap Cremean Wp	United States	Record daily precipitation	36.1 mm (1.4 in)	29 of 100 (Routine)
Mansfield Lahm Rgnl AP	United States	Record daily precipitation	69.3 mm (2.7 in)	29 of 100 (Routine)
Strasbourg-Entzheim	France	Record high maximum temperature	30.3 C (86.5 F)	28 of 100 (Routine)
Tarbes - Ossun	France	Record high minimum temperature	16.0 C (60.8 F)	28 of 100 (Routine)
Lahr	Germany	Record high maximum temperature	29.8 C (85.6 F)	28 of 100 (Routine)
Cairo 1SW	United States	Record low minimum temperature	7.2 C (45.0 F)	28 of 100 (Routine)
Marseilles Lock/Dam	United States	Record daily precipitation	55.9 mm (2.2 in)	28 of 100 (Routine)

Counts by Type and Timescale

501 records

Records set or tied on 9 May 2021 by type: Highest daily maximum 130, Lowest daily maximum 52, Highest daily minimum 55, Lowest daily minimum 64, Heaviest daily rainfall 185, Heaviest daily snowfall 11, Deepest snow cover 4.

Records on 9 May 2021 by type
Record type	Records
Highest daily maximum	130
Lowest daily maximum	52
Highest daily minimum	55
Lowest daily minimum	64
Heaviest daily rainfall	185
Heaviest daily snowfall	11
Deepest snow cover	4

Records on 9 May 2021 by timescale: all-time 0, monthly 8, daily 493.

How Much Records Were Beaten By

439 broken records

Margins by which the 439 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 102.0. Ties are not counted.

Top 20 by Significance

9 May 2021

Top 20 records on 9 May 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 May 2021	Bijie, CN	daily rain	120.9 mm (4.8 in)	92.7 mm (3.6 in)	48 years	61 of 100 (Major)
9 May 2021	Wooster Exp STN, US	daily rain	50.3 mm (2.0 in)	28.5 mm (1.1 in)	52 years	57 of 100 (Notable)
9 May 2021	Bowling Green Wwtp, US	daily rain	36.1 mm (1.4 in)	12.2 mm (0.5 in)	112 years	53 of 100 (Notable)
9 May 2021	Mullaley (Bando), AU	daily rain	30.2 mm (1.2 in)	15.5 mm (0.6 in)	118 years	51 of 100 (Notable)
9 May 2021	Lufkin Angelina Co AP, US	daily rain	91.2 mm (3.6 in)	29.0 mm (1.1 in)	88 years	50 of 100 (Notable)
9 May 2021	Seychelles Internat, SC	daily rain	82.0 mm (3.2 in)	67.0 mm (2.6 in)	30 years	48 of 100 (Notable)
9 May 2021	Mackinaw 3WSW, US	daily rain	48.5 mm (1.9 in)	21.3 mm (0.8 in)	66 years	46 of 100 (Notable)
9 May 2021	Le Claire L&D 14, US	daily rain	38.6 mm (1.5 in)	16.5 mm (0.6 in)	71 years	44 of 100 (Notable)
9 May 2021	Tizi Ouzou, DZ	daily high min	20.1 C (68.2 F)	1.1 C (2.0 F)	104 years	43 of 100 (Notable)
9 May 2021	Rockville, US	daily rain	30.5 mm (1.2 in)	4.8 mm (0.19 in)	112 years	43 of 100 (Notable)
9 May 2021	Sugar Land, US	daily high min	25.6 C (78.1 F)	1.2 C (2.2 F)	121 years	43 of 100 (Notable)
9 May 2021	Celina 3 NE, US	daily rain	60.2 mm (2.4 in)	29.2 mm (1.1 in)	18 years	42 of 100 (Notable)
9 May 2021	Pearsall, US	daily high min	26.1 C (79.0 F)	2.2 C (4.0 F)	91 years	42 of 100 (Notable)
9 May 2021	Glennville 3NW, US	daily low min	7.2 C (45.0 F)	0.6 C (1.1 F)	104 years	41 of 100 (Notable)
9 May 2021	Mt Pleasant 1 SW, US	daily rain	62.0 mm (2.4 in)	13.0 mm (0.5 in)	71 years	41 of 100 (Notable)
9 May 2021	Streator 2SE, US	daily rain	50.8 mm (2.0 in)	6.3 mm (0.25 in)	86 years	40 of 100 (Notable)
9 May 2021	Kokomo 3 WSW, US	daily rain	34.5 mm (1.4 in)	9.4 mm (0.37 in)	76 years	40 of 100 (Notable)
9 May 2021	Winamac 2SSE, US	daily rain	37.3 mm (1.5 in)	0.2 mm (0.01 in)	116 years	40 of 100 (Notable)
9 May 2021	Cleveland, US	daily rain	28.7 mm (1.1 in)	10.9 mm (0.4 in)	68 years	40 of 100 (Notable)
9 May 2021	Akron Canton AP, US	daily rain	51.3 mm (2.0 in)	26.9 mm (1.1 in)	18 years	40 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

1793 to 2021

Records set or tied on this calendar date in each year from 1793 to 2021. 2021 had 501 records.

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

Records on 05-09 in each year
Year	Records
1793	1
1795	1
1806	1
1810	1
1823	1
1834	1
1838	1
1843	1
1845	2
1846	1
1848	1
1850	2
1855	2
1857	1
1858	1
1861	1
1862	1
1864	2
1865	2
1867	2
1872	1
1873	2
1874	1
1875	2
1879	4
1880	3
1882	1
1883	2
1884	3
1885	3
1889	3
1890	3
1891	3
1892	1
1893	1
1895	2
1896	4
1897	3
1898	3
1899	2
1900	2
1901	9
1902	8
1903	9
1904	14
1905	34
1906	41
1907	11
1908	16
1909	34
1910	45
1911	23
1912	23
1913	15
1914	43
1915	27
1916	26
1917	50
1918	49
1919	47
1920	56
1921	102
1922	45
1923	461
1924	262
1925	123
1926	196
1927	343
1928	302
1929	166
1930	526
1931	411
1932	132
1933	482
1934	750
1935	111
1936	622
1937	128
1938	171
1939	345
1940	237
1941	335
1942	180
1943	524
1944	412
1945	538
1946	278
1947	1,145
1948	379
1949	417
1950	660
1951	188
1952	348
1953	507
1954	489
1955	288
1956	722
1957	505
1958	355
1959	252
1960	748
1961	516
1962	435
1963	1,103
1964	503
1965	730
1966	994
1967	681
1968	545
1969	653
1970	372
1971	338
1972	587
1973	386
1974	699
1975	465
1976	714
1977	931
1978	649
1979	1,605
1980	1,030
1981	639
1982	523
1983	872
1984	892
1985	829
1986	1,253
1987	1,481
1988	594
1989	1,347
1990	850
1991	759
1992	1,476
1993	967
1994	573
1995	960
1996	1,260
1997	1,088
1998	1,182
1999	970
2000	1,114
2001	969
2002	1,489
2003	1,802
2004	926
2005	851
2006	738
2007	765
2008	693
2009	816
2010	764
2011	1,104
2012	686
2013	684
2014	754
2015	689
2016	917
2017	539
2018	879
2019	1,043
2020	1,673
2021	501
2022	1,308
2023	474
2024	792
2025	622
2026	309

Download the Data

Data for records on 2021-05-09: 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	420
20 to 40	12
40 to 60	2
60 to 80	2
80 to 100	2
100 to 120	1