Weather Records on 9 October 1984

579 weather records were set or tied worldwide on 9 October 1984. Highest significance: Reddersburg (Pol), ZA.

Key Facts for 9 October 1984

On 9 October 1984, 579 weather records were set or tied at long-record stations worldwide.
150 were record highs and 93 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 571 daily.
Reddersburg (Pol) set a daily record precipitation of 53.5 mm (2.1 in) on 9 October 1984.
Across 162 earlier years (1793 to 2026) the same calendar date averaged 467 records.

Record Map

579 stations

579 station records on 9 October 1984 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 October 1984: highest significance records shown on the map
Station	Country	Type	Value	Significance
Reddersburg (Pol)	South Africa	Record daily precipitation	53.5 mm (2.1 in)	63 of 100 (Major)
Pierce 1 E	United States	Record daily precipitation	88.9 mm (3.5 in)	59 of 100 (Notable)
Windsorton (Pol)	South Africa	Record daily precipitation	35.5 mm (1.4 in)	57 of 100 (Notable)
Drieputs	South Africa	Record daily precipitation	36.0 mm (1.4 in)	48 of 100 (Notable)
Pouso Redondo	Brazil	Record daily precipitation	67.4 mm (2.7 in)	47 of 100 (Notable)
Uniteit	South Africa	Record daily precipitation	28.0 mm (1.1 in)	46 of 100 (Notable)
Shanghai/Hongqiao	China	Record daily precipitation	35.9 mm (1.4 in)	45 of 100 (Notable)
Leyden	South Africa	Record daily precipitation	35.5 mm (1.4 in)	45 of 100 (Notable)
Luiz Alves	Brazil	Record daily precipitation	64.0 mm (2.5 in)	43 of 100 (Notable)
Youanmi Downs	Australia	Record daily precipitation	26.2 mm (1.0 in)	42 of 100 (Notable)
Daniels Hope	South Africa	Record daily precipitation	27.0 mm (1.1 in)	42 of 100 (Notable)
Arecibo 3 ESE	Puerto Rico [United States]	Record low minimum temperature	17.8 C (64.0 F)	41 of 100 (Notable)
Colfax	United States	Record high minimum temperature	9.4 C (48.9 F)	38 of 100 (Notable)
Timbo Novo (Pcd)	Brazil	Record daily precipitation	61.0 mm (2.4 in)	37 of 100 (Notable)
Chattanooga AP	United States	Record daily precipitation	49.8 mm (2.0 in)	37 of 100 (Notable)
Kipling 4 NNW	United States	Record daily precipitation	48.3 mm (1.9 in)	36 of 100 (Notable)
Clayton Muni Air Pk	United States	Record daily precipitation	37.3 mm (1.5 in)	36 of 100 (Notable)
Garruchos	Brazil	Record daily precipitation	86.1 mm (3.4 in)	35 of 100 (Notable)
Geneseo	United States	Record daily precipitation	52.3 mm (2.1 in)	35 of 100 (Notable)
Humble Pump STN 5 WNW	United States	Record daily precipitation	55.4 mm (2.2 in)	34 of 100 (Routine)
Stearns 2S	United States	Record daily precipitation	34.0 mm (1.3 in)	33 of 100 (Routine)
Bogalusa	United States	Record daily precipitation	51.8 mm (2.0 in)	33 of 100 (Routine)
Crandall 8 N	United States	Record daily precipitation	93.2 mm (3.7 in)	33 of 100 (Routine)
Arcade	United States	Record high minimum temperature	13.3 C (55.9 F)	33 of 100 (Routine)
Port Arthur SE Tx Rgnl AP	United States	Record daily precipitation	111.8 mm (4.4 in)	33 of 100 (Routine)
Marble Bar Comparison	Australia	Record high minimum temperature	25.9 C (78.6 F)	32 of 100 (Routine)
Coeur D'Alene	United States	Record high maximum temperature	28.3 C (82.9 F)	32 of 100 (Routine)
Dedeben (Pol)	South Africa	Record daily precipitation	37.5 mm (1.5 in)	31 of 100 (Routine)
Rietpan	South Africa	Record daily precipitation	48.2 mm (1.9 in)	31 of 100 (Routine)
Nova Trento	Brazil	Record daily precipitation	46.4 mm (1.8 in)	30 of 100 (Routine)
Trombudo Central	Brazil	Record daily precipitation	64.8 mm (2.6 in)	30 of 100 (Routine)
Hafslo	Norway	Record daily precipitation	38.0 mm (1.5 in)	30 of 100 (Routine)
Alger-Dar El Beida	Algeria	Record daily precipitation	115.2 mm (4.5 in)	29 of 100 (Routine)
Misurata	Libya	Record low minimum temperature	11.4 C (52.5 F)	29 of 100 (Routine)
Sogndal - Selseng	Norway	Record daily precipitation	43.8 mm (1.7 in)	29 of 100 (Routine)
Clocolan (Pol)	South Africa	Record daily precipitation	33.0 mm (1.3 in)	29 of 100 (Routine)
Jamestown State Hosp	United States	Record high minimum temperature	10.6 C (51.1 F)	29 of 100 (Routine)
Warnow	Brazil	Record daily precipitation	32.0 mm (1.3 in)	28 of 100 (Routine)
Richmond	United States	Record daily precipitation	52.3 mm (2.1 in)	28 of 100 (Routine)
Pomerode	Brazil	Record daily precipitation	42.2 mm (1.7 in)	27 of 100 (Routine)
Taio (Pcd)	Brazil	Record daily precipitation	65.4 mm (2.6 in)	27 of 100 (Routine)
Oorsprong-Oos	South Africa	Record daily precipitation	25.0 mm (1.0 in)	27 of 100 (Routine)
Monticello	United States	Record daily precipitation	38.1 mm (1.5 in)	27 of 100 (Routine)
Philip AP	United States	Record high minimum temperature	11.7 C (53.1 F)	27 of 100 (Routine)
Ituporanga (Pcd)	Brazil	Record daily precipitation	53.4 mm (2.1 in)	26 of 100 (Routine)
Dzhergital	Kyrgyzstan	Record daily precipitation	37.4 mm (1.5 in)	26 of 100 (Routine)
Uzgen	Kyrgyzstan	Record daily precipitation	27.4 mm (1.1 in)	26 of 100 (Routine)
Songkhla	Thailand	Record low maximum temperature	26.5 C (79.7 F)	26 of 100 (Routine)
Mtn Home	United States	Record high minimum temperature	11.1 C (52.0 F)	26 of 100 (Routine)
Ellendale	United States	Record high minimum temperature	12.8 C (55.0 F)	26 of 100 (Routine)
Fullerton 1 ESE	United States	Record high minimum temperature	12.2 C (54.0 F)	26 of 100 (Routine)
Indaial	Brazil	Record daily precipitation	37.4 mm (1.5 in)	25 of 100 (Routine)
Cuautla (Smn)	Mexico	Record low minimum temperature	7.8 C (46.0 F)	25 of 100 (Routine)
Kanin Nos	Russia	Record low maximum temperature	-0.2 C (31.6 F)	25 of 100 (Routine)
Akhty	Russia	Record high maximum temperature	31.5 C (88.7 F)	25 of 100 (Routine)
Kareepan	South Africa	Record daily precipitation	28.0 mm (1.1 in)	25 of 100 (Routine)
Malaga Aeropuerto	Spain	Record low minimum temperature	7.6 C (45.7 F)	25 of 100 (Routine)
Hailey 3 NNW	United States	Record high minimum temperature	8.9 C (48.0 F)	25 of 100 (Routine)
New Roads 5 NE	United States	Record daily precipitation	85.6 mm (3.4 in)	25 of 100 (Routine)
Centerville 5 NE	United States	Record daily precipitation	50.8 mm (2.0 in)	25 of 100 (Routine)

Counts by Type and Timescale

579 records

Records set or tied on 9 October 1984 by type: Highest daily maximum 48, Lowest daily maximum 39, Highest daily minimum 102, Lowest daily minimum 54, Heaviest daily rainfall 334, Heaviest daily snowfall 1, Deepest snow cover 1.

Records on 9 October 1984 by type
Record type	Records
Highest daily maximum	48
Lowest daily maximum	39
Highest daily minimum	102
Lowest daily minimum	54
Heaviest daily rainfall	334
Heaviest daily snowfall	1
Deepest snow cover	1

Records on 9 October 1984 by timescale: all-time 0, monthly 8, daily 571.

How Much Records Were Beaten By

505 broken records

Margins by which the 505 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 76.0. Ties are not counted.

Top 20 by Significance

9 October 1984

Top 20 records on 9 October 1984 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 October 1984	Reddersburg (Pol), ZA	daily rain	53.5 mm (2.1 in)	38.8 mm (1.5 in)	71 years	63 of 100 (Major)
9 October 1984	Pierce 1 E, US	daily rain	88.9 mm (3.5 in)	72.4 mm (2.9 in)	75 years	59 of 100 (Notable)
9 October 1984	Windsorton (Pol), ZA	daily rain	35.5 mm (1.4 in)	28.1 mm (1.1 in)	71 years	57 of 100 (Notable)
9 October 1984	Drieputs, ZA	daily rain	36.0 mm (1.4 in)	33.7 mm (1.3 in)	48 years	48 of 100 (Notable)
9 October 1984	Pouso Redondo, BR	daily rain	67.4 mm (2.7 in)	45.2 mm (1.8 in)	28 years	47 of 100 (Notable)
9 October 1984	Uniteit, ZA	daily rain	28.0 mm (1.1 in)	28.0 mm (1.1 in)	49 years	46 of 100 (Notable)
9 October 1984	Shanghai/Hongqiao, CN	daily rain	35.9 mm (1.4 in)	34.5 mm (1.4 in)	10 years	45 of 100 (Notable)
9 October 1984	Leyden, ZA	daily rain	35.5 mm (1.4 in)	29.7 mm (1.2 in)	53 years	45 of 100 (Notable)
9 October 1984	Luiz Alves, BR	daily rain	64.0 mm (2.5 in)	43.9 mm (1.7 in)	28 years	43 of 100 (Notable)
9 October 1984	Youanmi Downs, AU	daily rain	26.2 mm (1.0 in)	21.1 mm (0.8 in)	18 years	42 of 100 (Notable)
9 October 1984	Daniels Hope, ZA	daily rain	27.0 mm (1.1 in)	23.4 mm (0.9 in)	25 years	42 of 100 (Notable)
9 October 1984	Arecibo 3 ESE, PR	daily low min	17.8 C (64.0 F)	2.2 C (4.0 F)	49 years	41 of 100 (Notable)
9 October 1984	Colfax, US	daily high min	9.4 C (48.9 F)	1.1 C (2.0 F)	91 years	38 of 100 (Notable)
9 October 1984	Timbo Novo (Pcd), BR	daily rain	61.0 mm (2.4 in)	23.1 mm (0.9 in)	54 years	37 of 100 (Notable)
9 October 1984	Chattanooga AP, US	daily rain	49.8 mm (2.0 in)	37.4 mm (1.5 in)	18 years	37 of 100 (Notable)
9 October 1984	Kipling 4 NNW, US	daily rain	48.3 mm (1.9 in)	25.9 mm (1.0 in)	50 years	36 of 100 (Notable)
9 October 1984	Clayton Muni Air Pk, US	daily rain	37.3 mm (1.5 in)	10.6 mm (0.4 in)	61 years	36 of 100 (Notable)
9 October 1984	Garruchos, BR	daily rain	86.1 mm (3.4 in)	62.9 mm (2.5 in)	30 years	35 of 100 (Notable)
9 October 1984	Geneseo, US	daily rain	52.3 mm (2.1 in)	17.8 mm (0.7 in)	43 years	35 of 100 (Notable)
9 October 1984	Humble Pump STN 5 WNW, US	daily rain	55.4 mm (2.2 in)	46.5 mm (1.8 in)	22 years	34 of 100 (Routine)

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 1984

Records set or tied on this calendar date in each year from 1793 to 1984. 1984 had 579 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 1984-10-09: 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 10	419
10 to 20	44
20 to 30	25
30 to 40	7
40 to 50	6
50 to 60	1
60 to 70	1
70 to 80	2