Weather Records on 9 May 1981

639 weather records were set or tied worldwide on 9 May 1981. Highest significance: Arlington Six Flags, US.

Key Facts for 9 May 1981

On 9 May 1981, 639 weather records were set or tied at long-record stations worldwide.
184 were record highs and 196 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 17 monthly and 622 daily.
Arlington Six Flags set a daily record precipitation of 79.5 mm (3.1 in) on 9 May 1981.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 431 records.

Record Map

639 stations

639 station records on 9 May 1981 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 May 1981: highest significance records shown on the map
Station	Country	Type	Value	Significance
Arlington Six Flags	United States	Record daily precipitation	79.5 mm (3.1 in)	57 of 100 (Notable)
Decatur	United States	Record daily precipitation	55.4 mm (2.2 in)	51 of 100 (Notable)
Edom	United States	Record daily precipitation	91.9 mm (3.6 in)	51 of 100 (Notable)
Ennis	United States	Record daily precipitation	133.4 mm (5.3 in)	49 of 100 (Notable)
Sogndal - Selseng	Norway	Record snow depth	113.0 cm (44.5 in)	47 of 100 (Notable)
Minden	United States	Record daily precipitation	47.5 mm (1.9 in)	47 of 100 (Notable)
Athens	United States	Record daily precipitation	116.8 mm (4.6 in)	47 of 100 (Notable)
Tian-Shan	Kyrgyzstan	Record daily precipitation	31.5 mm (1.2 in)	45 of 100 (Notable)
Cameron Falls	Canada	Record daily snowfall	8.5 cm (3.3 in)	42 of 100 (Notable)
Peoria	United States	Record daily precipitation	40.1 mm (1.6 in)	41 of 100 (Notable)
Sedgwick	United States	Record daily precipitation	84.8 mm (3.3 in)	40 of 100 (Notable)
Clover Valley	United States	Record low minimum temperature	-5.6 C (21.9 F)	40 of 100 (Notable)
Madill	United States	Record daily precipitation	75.4 mm (3.0 in)	40 of 100 (Notable)
Ferris	United States	Record daily precipitation	70.9 mm (2.8 in)	40 of 100 (Notable)
Kur	Russia	Record daily precipitation	37.4 mm (1.5 in)	39 of 100 (Notable)
Tishomingo Natl Wr	United States	Record daily precipitation	59.7 mm (2.4 in)	39 of 100 (Notable)
Canton 5 W	United States	Record daily precipitation	82.0 mm (3.2 in)	39 of 100 (Notable)
Rosser	United States	Record daily precipitation	62.5 mm (2.5 in)	39 of 100 (Notable)
Oktjabrskaja	Russia	Record high maximum temperature	15.2 C (59.4 F)	38 of 100 (Notable)
Mt Hope	United States	Record daily precipitation	54.9 mm (2.2 in)	38 of 100 (Notable)
Jacksboro	United States	Record daily precipitation	73.7 mm (2.9 in)	37 of 100 (Notable)
Jefferson	United States	Record daily precipitation	69.3 mm (2.7 in)	37 of 100 (Notable)
Mineola	United States	Record daily precipitation	64.8 mm (2.6 in)	37 of 100 (Notable)
Maud	United States	Record daily precipitation	71.6 mm (2.8 in)	36 of 100 (Notable)
Coimbra	Portugal	Record daily precipitation	32.3 mm (1.3 in)	35 of 100 (Notable)
Pierson	Canada	Record low minimum temperature	-9.0 C (15.8 F)	34 of 100 (Routine)
Olekminsk	Russia	Record low minimum temperature	-8.1 C (17.4 F)	34 of 100 (Routine)
Reus/Aeropuerto	Spain	Record daily precipitation	39.0 mm (1.5 in)	34 of 100 (Routine)
Aiken 5SE	United States	Record low minimum temperature	2.2 C (36.0 F)	34 of 100 (Routine)
Sumter	United States	Record low maximum temperature	21.1 C (70.0 F)	34 of 100 (Routine)
Barkestad	Norway	Record snow depth	87.0 cm (34.3 in)	33 of 100 (Routine)
Inverness 3 SE	United States	Record low maximum temperature	23.9 C (75.0 F)	33 of 100 (Routine)
Geneseo	United States	Record daily precipitation	45.7 mm (1.8 in)	33 of 100 (Routine)
Medicine Lodge	United States	Record daily precipitation	37.6 mm (1.5 in)	33 of 100 (Routine)
Newton	United States	Record daily precipitation	39.9 mm (1.6 in)	33 of 100 (Routine)
Rockwall	United States	Record daily precipitation	59.7 mm (2.4 in)	33 of 100 (Routine)
Toulouse-Blagnac	France	Record daily precipitation	29.2 mm (1.1 in)	32 of 100 (Routine)
Inman 5SW	United States	Record daily precipitation	53.3 mm (2.1 in)	32 of 100 (Routine)
Ionia	United States	Record daily precipitation	52.6 mm (2.1 in)	32 of 100 (Routine)
Mountainair	United States	Record low minimum temperature	-7.8 C (18.0 F)	32 of 100 (Routine)
Dialville 2 W	United States	Record daily precipitation	63.5 mm (2.5 in)	32 of 100 (Routine)
Terrell	United States	Record daily precipitation	58.2 mm (2.3 in)	32 of 100 (Routine)
El Dorado Goodwin Fld	United States	Record daily precipitation	63.5 mm (2.5 in)	32 of 100 (Routine)
Brewster 4W	United States	Record daily precipitation	33.5 mm (1.3 in)	31 of 100 (Routine)
Meade	United States	Record daily precipitation	56.4 mm (2.2 in)	31 of 100 (Routine)
Benbrook Dam	United States	Record daily precipitation	48.8 mm (1.9 in)	31 of 100 (Routine)
Boxelder 3 NNE	United States	Record daily precipitation	60.2 mm (2.4 in)	31 of 100 (Routine)
Butterworth (Tnk)	South Africa	Record daily precipitation	80.0 mm (3.1 in)	30 of 100 (Routine)
Antoine 1 SW	United States	Record daily precipitation	45.2 mm (1.8 in)	30 of 100 (Routine)
Enterprise	United States	Record daily precipitation	40.6 mm (1.6 in)	30 of 100 (Routine)
Smithville	United States	Record low maximum temperature	18.3 C (64.9 F)	30 of 100 (Routine)
Bridgeport	United States	Record daily precipitation	152.4 mm (6.0 in)	30 of 100 (Routine)
Karnack	United States	Record daily precipitation	46.2 mm (1.8 in)	30 of 100 (Routine)
Quitman	United States	Record daily precipitation	50.8 mm (2.0 in)	30 of 100 (Routine)
Williamstown	Australia	Record daily precipitation	30.6 mm (1.2 in)	29 of 100 (Routine)
Im. Poliny Osipenko	Russia	Record high minimum temperature	11.0 C (51.8 F)	29 of 100 (Routine)
Los Banos	United States	Record high minimum temperature	15.6 C (60.1 F)	29 of 100 (Routine)
Barnard	United States	Record daily precipitation	93.2 mm (3.7 in)	29 of 100 (Routine)
Russell Springs	United States	Record low maximum temperature	11.1 C (52.0 F)	29 of 100 (Routine)
General Wayne A Downing Intl A	United States	Record daily precipitation	40.1 mm (1.6 in)	29 of 100 (Routine)

Counts by Type and Timescale

639 records

Records set or tied on 9 May 1981 by type: Highest daily maximum 91, Lowest daily maximum 72, Highest daily minimum 93, Lowest daily minimum 124, Heaviest daily rainfall 245, Heaviest daily snowfall 11, Deepest snow cover 3.

Records on 9 May 1981 by type
Record type	Records
Highest daily maximum	91
Lowest daily maximum	72
Highest daily minimum	93
Lowest daily minimum	124
Heaviest daily rainfall	245
Heaviest daily snowfall	11
Deepest snow cover	3

Records on 9 May 1981 by timescale: all-time 0, monthly 17, daily 622.

How Much Records Were Beaten By

538 broken records

Margins by which the 538 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 530.0. Ties are not counted.

Top 20 by Significance

9 May 1981

Top 20 records on 9 May 1981 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 May 1981	Arlington Six Flags, US	daily rain	79.5 mm (3.1 in)	57.9 mm (2.3 in)	86 years	57 of 100 (Notable)
9 May 1981	Decatur, US	daily rain	55.4 mm (2.2 in)	35.1 mm (1.4 in)	74 years	51 of 100 (Notable)
9 May 1981	Edom, US	daily rain	91.9 mm (3.6 in)	76.2 mm (3.0 in)	32 years	51 of 100 (Notable)
9 May 1981	Ennis, US	daily rain	133.4 mm (5.3 in)	123.2 mm (4.9 in)	16 years	49 of 100 (Notable)
9 May 1981	Sogndal - Selseng, NO	daily snow depth	113.0 cm (44.5 in)	53.0 cm (20.9 in)	54 years	47 of 100 (Notable)
9 May 1981	Minden, US	daily rain	47.5 mm (1.9 in)	25.4 mm (1.0 in)	87 years	47 of 100 (Notable)
9 May 1981	Athens, US	daily rain	116.8 mm (4.6 in)	91.4 mm (3.6 in)	16 years	47 of 100 (Notable)
9 May 1981	Tian-Shan, KG	monthly rain	31.5 mm (1.2 in)	7.4 mm (0.29 in)	19 years	45 of 100 (Notable)
9 May 1981	Cameron Falls, CA	daily snowfall	8.5 cm (3.3 in)	8.5 cm (3.3 in)	56 years	42 of 100 (Notable)
9 May 1981	Peoria, US	daily rain	40.1 mm (1.6 in)	31.0 mm (1.2 in)	31 years	41 of 100 (Notable)
9 May 1981	Sedgwick, US	monthly rain	84.8 mm (3.3 in)	11.9 mm (0.5 in)	51 years	40 of 100 (Notable)
9 May 1981	Clover Valley, US	daily low min	-5.6 C (21.9 F)	3.9 C (7.0 F)	76 years	40 of 100 (Notable)
9 May 1981	Madill, US	daily rain	75.4 mm (3.0 in)	52.8 mm (2.1 in)	27 years	40 of 100 (Notable)
9 May 1981	Ferris, US	daily rain	70.9 mm (2.8 in)	61.2 mm (2.4 in)	12 years	40 of 100 (Notable)
9 May 1981	Kur, RU	daily rain	37.4 mm (1.5 in)	17.6 mm (0.7 in)	24 years	39 of 100 (Notable)
9 May 1981	Tishomingo Natl Wr, US	daily rain	59.7 mm (2.4 in)	34.3 mm (1.4 in)	40 years	39 of 100 (Notable)
9 May 1981	Canton 5 W, US	daily rain	82.0 mm (3.2 in)	52.8 mm (2.1 in)	32 years	39 of 100 (Notable)
9 May 1981	Rosser, US	daily rain	62.5 mm (2.5 in)	49.8 mm (2.0 in)	38 years	39 of 100 (Notable)
9 May 1981	Oktjabrskaja, RU	daily high max	15.2 C (59.4 F)	5.6 C (10.1 F)	42 years	38 of 100 (Notable)
9 May 1981	Mt Hope, US	daily rain	54.9 mm (2.2 in)	28.2 mm (1.1 in)	38 years	38 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 1981

Records set or tied on this calendar date in each year from 1793 to 1981. 1981 had 639 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 1981-05-09: 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 100	536
100 to 200	1
200 to 300	0
300 to 400	0
400 to 500	0
500 to 600	1