Weather Records on 9 October 2021

751 weather records were set or tied worldwide on 9 October 2021. Highest significance: Mc Henry 3W, US.

Key Facts for 9 October 2021

On 9 October 2021, 751 weather records were set or tied at long-record stations worldwide.
483 were record highs and 90 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 21 monthly and 729 daily.
Mc Henry 3W set a daily record precipitation of 55.9 mm (2.2 in) on 9 October 2021.
Across 162 earlier years (1793 to 2026) the same calendar date averaged 466 records.

Record Map

751 stations

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

Weather records on 9 October 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mc Henry 3W	United States	Record daily precipitation	55.9 mm (2.2 in)	80 of 100 (Exceptional)
Lifton Pumping STN	United States	Record daily precipitation	30.5 mm (1.2 in)	62 of 100 (Major)
Raleigh AP	United States	Record daily precipitation	126.0 mm (5.0 in)	60 of 100 (Major)
Mtn Dell Dam	United States	Record daily precipitation	43.4 mm (1.7 in)	59 of 100 (Notable)
Jamestown 2 NW	United States	Record daily precipitation	80.8 mm (3.2 in)	57 of 100 (Notable)
Logan Utah St UNIV	United States	Record daily precipitation	30.5 mm (1.2 in)	57 of 100 (Notable)
Plymouth	United States	Record daily precipitation	41.7 mm (1.6 in)	56 of 100 (Notable)
Richlands	United States	Record daily precipitation	99.3 mm (3.9 in)	55 of 100 (Notable)
Terry	United States	Record daily precipitation	40.4 mm (1.6 in)	54 of 100 (Notable)
Tifton	United States	Record daily precipitation	80.3 mm (3.2 in)	51 of 100 (Notable)
Brazzaville	Congo (Brazzaville)	Record low minimum temperature	14.5 C (58.1 F)	50 of 100 (Notable)
Macau Intl	Macau S.A.R	Record daily precipitation	138.7 mm (5.5 in)	50 of 100 (Notable)
Columbia UNIV of Sc	United States	Record daily precipitation	97.8 mm (3.9 in)	50 of 100 (Notable)
Silver Lake Brighton	United States	Record daily precipitation	47.0 mm (1.9 in)	50 of 100 (Notable)
Watauga S Dak 8 N	United States	Record daily precipitation	71.1 mm (2.8 in)	49 of 100 (Notable)
Trenton	United States	Record daily precipitation	30.7 mm (1.2 in)	49 of 100 (Notable)
Standish 4NE	United States	Record daily precipitation	44.7 mm (1.8 in)	46 of 100 (Notable)
Harvey 4NE	United States	Record daily precipitation	45.7 mm (1.8 in)	46 of 100 (Notable)
Bowdle	United States	Record daily precipitation	35.6 mm (1.4 in)	46 of 100 (Notable)
Smithfield	United States	Record daily precipitation	88.9 mm (3.5 in)	45 of 100 (Notable)
Elgin Water	United States	Record daily precipitation	28.4 mm (1.1 in)	44 of 100 (Notable)
Harbor Beach 1 SSE	United States	Record high minimum temperature	17.8 C (64.0 F)	44 of 100 (Notable)
Cottonwood Weir	United States	Record daily precipitation	31.0 mm (1.2 in)	44 of 100 (Notable)
Cutler Dam	United States	Record daily precipitation	34.3 mm (1.4 in)	44 of 100 (Notable)
Alexandria Chandler Fld	United States	Record daily precipitation	52.3 mm (2.1 in)	44 of 100 (Notable)
Castle Rock	United States	Record high minimum temperature	12.2 C (54.0 F)	43 of 100 (Notable)
Abilene	United States	Record high maximum temperature	35.0 C (95.0 F)	43 of 100 (Notable)
Manitowoc	United States	Record high minimum temperature	16.7 C (62.1 F)	43 of 100 (Notable)
Port Blair	India	Record daily precipitation	97.0 mm (3.8 in)	42 of 100 (Notable)
Mildred 7 NNW	United States	Record daily precipitation	41.4 mm (1.6 in)	42 of 100 (Notable)
Lockport 2SE	United States	Record high minimum temperature	17.2 C (63.0 F)	42 of 100 (Notable)
Hiram	United States	Record daily precipitation	62.2 mm (2.4 in)	42 of 100 (Notable)
Milesville 5 NE	United States	Record high minimum temperature	12.8 C (55.0 F)	42 of 100 (Notable)
Randolph	United States	Record high minimum temperature	3.9 C (39.0 F)	42 of 100 (Notable)
Minsk	Belarus	Record low minimum temperature	-3.6 C (25.5 F)	41 of 100 (Notable)
Koror	Palau	Record daily precipitation	168.4 mm (6.6 in)	41 of 100 (Notable)
Oestersund-Froesoen	Sweden	Record high maximum temperature	14.7 C (58.5 F)	41 of 100 (Notable)
Edgeley 3WNW	United States	Record high minimum temperature	12.2 C (54.0 F)	41 of 100 (Notable)
City Creek Wtp	United States	Record daily precipitation	32.3 mm (1.3 in)	41 of 100 (Notable)
Westcliffe	United States	Record high minimum temperature	9.4 C (48.9 F)	40 of 100 (Notable)
Red Lake Indian Agcy	United States	Record daily precipitation	27.4 mm (1.1 in)	40 of 100 (Notable)
Onida 4 NW	United States	Record high minimum temperature	12.8 C (55.0 F)	40 of 100 (Notable)
Dongfang	China	Record daily precipitation	66.8 mm (2.6 in)	39 of 100 (Notable)
Turtle Lake	United States	Record daily precipitation	37.3 mm (1.5 in)	39 of 100 (Notable)
Kaneohe Bay MCAS	United States	Record low maximum temperature	25.6 C (78.1 F)	39 of 100 (Notable)
Cerro	United States	Record high minimum temperature	9.4 C (48.9 F)	38 of 100 (Notable)
Zion Np	United States	Record daily precipitation	26.2 mm (1.0 in)	38 of 100 (Notable)
Brule Rs	United States	Record high minimum temperature	12.8 C (55.0 F)	38 of 100 (Notable)
Watertown Rgnl AP	United States	Record daily precipitation	56.6 mm (2.2 in)	38 of 100 (Notable)
Shangzhi	China	Record daily precipitation	26.7 mm (1.1 in)	37 of 100 (Notable)
Alma	United States	Record daily precipitation	36.1 mm (1.4 in)	36 of 100 (Notable)
Jackson Springs 5 WNW	United States	Record daily precipitation	68.8 mm (2.7 in)	36 of 100 (Notable)
Alta	United States	Record daily precipitation	31.8 mm (1.3 in)	36 of 100 (Notable)
Pineview Dam	United States	Record daily precipitation	29.5 mm (1.2 in)	36 of 100 (Notable)
Harrison	United States	Record high minimum temperature	20.6 C (69.1 F)	35 of 100 (Notable)
Mizpah 4 NNW	United States	Record daily precipitation	32.0 mm (1.3 in)	35 of 100 (Notable)
Bedford 3 SE	United States	Record daily precipitation	31.8 mm (1.3 in)	35 of 100 (Notable)
Miles City AP	United States	Record daily precipitation	27.7 mm (1.1 in)	35 of 100 (Notable)
Niigata	Japan	Record high minimum temperature	20.0 C (68.0 F)	34 of 100 (Routine)
Saint Johns	United States	Record high minimum temperature	11.7 C (53.1 F)	34 of 100 (Routine)

Counts by Type and Timescale

751 records

Records set or tied on 9 October 2021 by type: Highest daily maximum 151, Lowest daily maximum 35, Highest daily minimum 332, Lowest daily minimum 55, Heaviest daily rainfall 178.

Records on 9 October 2021 by type
Record type	Records
Highest daily maximum	151
Lowest daily maximum	35
Highest daily minimum	332
Lowest daily minimum	55
Heaviest daily rainfall	178
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 9 October 2021 by timescale: all-time 1, monthly 21, daily 729.

How Much Records Were Beaten By

602 broken records

Margins by which the 602 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 134.4. Ties are not counted.

Top 20 by Significance

9 October 2021

Top 20 records on 9 October 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 October 2021	Mc Henry 3W, US	daily rain	55.9 mm (2.2 in)	36.8 mm (1.4 in)	108 years	80 of 100 (Exceptional)
9 October 2021	Lifton Pumping STN, US	daily rain	30.5 mm (1.2 in)	12.5 mm (0.5 in)	91 years	62 of 100 (Major)
9 October 2021	Raleigh AP, US	daily rain	126.0 mm (5.0 in)	96.0 mm (3.8 in)	44 years	60 of 100 (Major)
9 October 2021	Mtn Dell Dam, US	daily rain	43.4 mm (1.7 in)	25.9 mm (1.0 in)	60 years	59 of 100 (Notable)
9 October 2021	Jamestown 2 NW, US	daily rain	80.8 mm (3.2 in)	53.1 mm (2.1 in)	28 years	57 of 100 (Notable)
9 October 2021	Logan Utah St UNIV, US	daily rain	30.5 mm (1.2 in)	13.5 mm (0.5 in)	100 years	57 of 100 (Notable)
9 October 2021	Plymouth, US	daily rain	41.7 mm (1.6 in)	36.6 mm (1.4 in)	28 years	56 of 100 (Notable)
9 October 2021	Richlands, US	monthly rain	99.3 mm (3.9 in)	35.3 mm (1.4 in)	18 years	55 of 100 (Notable)
9 October 2021	Terry, US	daily rain	40.4 mm (1.6 in)	22.1 mm (0.9 in)	46 years	54 of 100 (Notable)
9 October 2021	Tifton, US	daily rain	80.3 mm (3.2 in)	46.8 mm (1.8 in)	44 years	51 of 100 (Notable)
9 October 2021	Brazzaville, CG	daily low min	14.5 C (58.1 F)	3.7 C (6.7 F)	44 years	50 of 100 (Notable)
9 October 2021	Macau Intl, MO	daily rain	138.7 mm (5.5 in)	134.4 mm (5.3 in)	11 years	50 of 100 (Notable)
9 October 2021	Columbia UNIV of Sc, US	daily rain	97.8 mm (3.9 in)	45.0 mm (1.8 in)	44 years	50 of 100 (Notable)
9 October 2021	Silver Lake Brighton, US	daily rain	47.0 mm (1.9 in)	24.6 mm (1.0 in)	60 years	50 of 100 (Notable)
9 October 2021	Watauga S Dak 8 N, US	monthly rain	71.1 mm (2.8 in)	17.8 mm (0.7 in)	49 years	49 of 100 (Notable)
9 October 2021	Trenton, US	daily rain	30.7 mm (1.2 in)	24.1 mm (0.9 in)	28 years	49 of 100 (Notable)
9 October 2021	Standish 4NE, US	daily rain	44.7 mm (1.8 in)	16.8 mm (0.7 in)	63 years	46 of 100 (Notable)
9 October 2021	Harvey 4NE, US	daily rain	45.7 mm (1.8 in)	24.9 mm (1.0 in)	39 years	46 of 100 (Notable)
9 October 2021	Bowdle, US	daily rain	35.6 mm (1.4 in)	15.0 mm (0.6 in)	63 years	46 of 100 (Notable)
9 October 2021	Smithfield, US	daily rain	88.9 mm (3.5 in)	22.9 mm (0.9 in)	75 years	45 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 751 records.

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

Records on 10-09 in each year
Year	Records
1793	1
1795	1
1802	1
1834	1
1837	1
1846	2
1847	1
1854	2
1858	1
1861	1
1864	2
1865	3
1866	1
1867	2
1869	1
1870	2
1875	1
1876	2
1877	2
1879	2
1881	1
1882	1
1884	1
1885	1
1886	1
1887	2
1888	6
1889	1
1890	1
1891	1
1893	5
1895	7
1896	4
1897	1
1898	3
1899	5
1900	5
1901	2
1902	3
1903	15
1904	8
1905	14
1906	29
1907	6
1908	19
1909	34
1910	20
1911	16
1912	23
1913	57
1914	22
1915	25
1916	126
1917	65
1918	16
1919	68
1920	36
1921	217
1922	40
1923	72
1924	95
1925	272
1926	123
1927	107
1928	290
1929	196
1930	276
1931	298
1932	271
1933	187
1934	298
1935	208
1936	569
1937	405
1938	462
1939	877
1940	119
1941	570
1942	330
1943	442
1944	144
1945	539
1946	317
1947	277
1948	438
1949	1,531
1950	618
1951	347
1952	658
1953	343
1954	341
1955	643
1956	468
1957	256
1958	639
1959	1,432
1960	397
1961	622
1962	508
1963	474
1964	841
1965	349
1966	489
1967	347
1968	538
1969	389
1970	1,805
1971	423
1972	371
1973	1,454
1974	513
1975	552
1976	1,448
1977	586
1978	589
1979	914
1980	627
1981	653
1982	1,579
1983	548
1984	579
1985	1,724
1986	556
1987	850
1988	1,060
1989	679
1990	1,714
1991	707
1992	1,050
1993	1,043
1994	772
1995	1,139
1996	1,047
1997	2,113
1998	622
1999	1,017
2000	3,177
2001	855
2002	701
2003	1,386
2004	665
2005	807
2006	640
2007	1,450
2008	473
2009	1,772
2010	1,311
2011	1,046
2012	706
2013	562
2014	652
2015	780
2016	463
2017	1,457
2018	1,290
2019	964
2020	738
2021	751
2022	696
2023	643
2024	963
2025	503
2026	691

Download the Data

Data for records on 2021-10-09: 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	582
20 to 40	14
40 to 60	4
60 to 80	0
80 to 100	1
100 to 120	0
120 to 140	1