Weather Records on 10 September 1984

824 weather records were set or tied worldwide on 10 September 1984. Highest significance: St Louis Lambert Intl AP, US.

Key Facts for 10 September 1984

On 10 September 1984, 824 weather records were set or tied at long-record stations worldwide.
371 were record highs and 184 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 33 monthly and 788 daily.
St Louis Lambert Intl AP set a daily record precipitation of 73.4 mm (2.9 in) on 10 September 1984.
Across 166 earlier years (1812 to 2026) the same calendar date averaged 426 records.

Record Map

824 stations

824 station records on 10 September 1984 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 10 September 1984: highest significance records shown on the map
Station	Country	Type	Value	Significance
St Louis Lambert Intl AP	United States	Record daily precipitation	73.4 mm (2.9 in)	55 of 100 (Notable)
Akkol	Kazakhstan	Record daily precipitation	33.0 mm (1.3 in)	54 of 100 (Notable)
Santo Antonio (Pcd)	Brazil	Record daily precipitation	26.0 mm (1.0 in)	52 of 100 (Notable)
Ely AP	United States	Record daily precipitation	41.1 mm (1.6 in)	51 of 100 (Notable)
Roebuck Plains	Australia	Record daily precipitation	61.4 mm (2.4 in)	49 of 100 (Notable)
Huoshan	China	Record daily precipitation	105.9 mm (4.2 in)	48 of 100 (Notable)
Siliguri	India	Record daily precipitation	101.1 mm (4.0 in)	43 of 100 (Notable)
Birobidzhan	Russia	Record daily precipitation	59.9 mm (2.4 in)	43 of 100 (Notable)
Melnichnoe	Russia	Record daily precipitation	46.6 mm (1.8 in)	42 of 100 (Notable)
Hillsdale	United States	Record daily precipitation	32.3 mm (1.3 in)	42 of 100 (Notable)
Titusville	United States	Record low maximum temperature	25.6 C (78.1 F)	41 of 100 (Notable)
Melle	Germany	Record daily precipitation	31.4 mm (1.2 in)	40 of 100 (Notable)
Mackay Lost Rvr Rs	United States	Record low minimum temperature	-7.2 C (19.0 F)	40 of 100 (Notable)
Anadarko 3 E	United States	Record high minimum temperature	23.9 C (75.0 F)	39 of 100 (Notable)
Margaret River	Australia	Record daily precipitation	41.6 mm (1.6 in)	38 of 100 (Notable)
Arecibo 3 ESE	Puerto Rico [United States]	Record low minimum temperature	17.2 C (63.0 F)	38 of 100 (Notable)
Arcadia	United States	Record daily precipitation	39.4 mm (1.6 in)	38 of 100 (Notable)
Ekaterino-Nikolskoe	Russia	Record daily precipitation	80.8 mm (3.2 in)	37 of 100 (Notable)
Orenburg	Russia	Record low minimum temperature	-0.6 C (30.9 F)	37 of 100 (Notable)
Brilon	Germany	Record daily precipitation	36.9 mm (1.5 in)	36 of 100 (Notable)
Medicine Lodge	United States	Record high maximum temperature	42.8 C (109.0 F)	36 of 100 (Notable)
Phoenix AP	United States	Record daily precipitation	25.7 mm (1.0 in)	36 of 100 (Notable)
Lunteren	Netherlands	Record daily precipitation	28.1 mm (1.1 in)	35 of 100 (Notable)
Korsakov	Russia	Record daily precipitation	33.5 mm (1.3 in)	35 of 100 (Notable)
Healdton 3 E	United States	Record high minimum temperature	23.9 C (75.0 F)	35 of 100 (Notable)
Ocampo	Mexico	Record low minimum temperature	5.0 C (41.0 F)	34 of 100 (Routine)
Lagos de Moreno (Dge)	Mexico	Record low maximum temperature	18.3 C (64.9 F)	34 of 100 (Routine)
Tustin Irvine Rch	United States	Record high minimum temperature	23.3 C (73.9 F)	34 of 100 (Routine)
Belleview 2 E	United States	Record daily precipitation	66.8 mm (2.6 in)	34 of 100 (Routine)
Spakenburg	Netherlands	Record daily precipitation	26.5 mm (1.0 in)	33 of 100 (Routine)
Marysville	United States	Record high minimum temperature	21.7 C (71.1 F)	33 of 100 (Routine)
McPherson	United States	Record high maximum temperature	39.4 C (102.9 F)	33 of 100 (Routine)
Newton	United States	Record high maximum temperature	40.6 C (105.1 F)	33 of 100 (Routine)
Paola	United States	Record high maximum temperature	36.1 C (97.0 F)	33 of 100 (Routine)
Snoqualmie Falls	United States	Record low minimum temperature	-1.1 C (30.0 F)	33 of 100 (Routine)
Anthony	United States	Record high maximum temperature	41.1 C (106.0 F)	33 of 100 (Routine)
Deer Valley	United States	Record daily precipitation	27.2 mm (1.1 in)	32 of 100 (Routine)
Estes Park	United States	Record high minimum temperature	13.9 C (57.0 F)	32 of 100 (Routine)
Elkhart	United States	Record high maximum temperature	38.9 C (102.0 F)	32 of 100 (Routine)
San Bernardo (Smn)	Mexico	Record daily precipitation	57.9 mm (2.3 in)	31 of 100 (Routine)
Buffalo 2 SSW	United States	Record high maximum temperature	42.2 C (108.0 F)	31 of 100 (Routine)
Wills Pt	United States	Record high minimum temperature	24.4 C (75.9 F)	31 of 100 (Routine)
Gage AP	United States	Record high maximum temperature	40.0 C (104.0 F)	31 of 100 (Routine)
Hurbanovo	Slovakia	Record low maximum temperature	14.3 C (57.7 F)	30 of 100 (Routine)
Corrales	Mexico	Record low maximum temperature	18.9 C (66.0 F)	30 of 100 (Routine)
Verhneimbatsk	Russia	Record high minimum temperature	15.0 C (59.0 F)	30 of 100 (Routine)
Krasnyj Jar	Russia	Record daily precipitation	80.0 mm (3.1 in)	30 of 100 (Routine)
Davis 2 WSW Exp Farm	United States	Record high minimum temperature	18.9 C (66.0 F)	30 of 100 (Routine)
Cottonwood Falls	United States	Record high maximum temperature	40.6 C (105.1 F)	30 of 100 (Routine)
Scott City	United States	Record high maximum temperature	37.2 C (99.0 F)	30 of 100 (Routine)
Kirksville	United States	Record daily precipitation	41.9 mm (1.6 in)	30 of 100 (Routine)
Elephant Butte Dam	United States	Record high maximum temperature	36.1 C (97.0 F)	30 of 100 (Routine)
San Jon	United States	Record high maximum temperature	37.8 C (100.0 F)	30 of 100 (Routine)
Weatherford	United States	Record high maximum temperature	39.4 C (102.9 F)	30 of 100 (Routine)
Oceanside Marina	United States	Record high minimum temperature	23.9 C (75.0 F)	29 of 100 (Routine)
Hillsboro	United States	Record daily precipitation	35.6 mm (1.4 in)	29 of 100 (Routine)
Portales	United States	Record high maximum temperature	36.1 C (97.0 F)	29 of 100 (Routine)
Enid	United States	Record high minimum temperature	24.4 C (75.9 F)	29 of 100 (Routine)
Canadian	United States	Record high maximum temperature	40.0 C (104.0 F)	29 of 100 (Routine)
Eslohe	Germany	Record daily precipitation	33.6 mm (1.3 in)	28 of 100 (Routine)

Counts by Type and Timescale

824 records

Records set or tied on 10 September 1984 by type: Highest daily maximum 187, Lowest daily maximum 115, Highest daily minimum 184, Lowest daily minimum 69, Heaviest daily rainfall 269.

Records on 10 September 1984 by type
Record type	Records
Highest daily maximum	187
Lowest daily maximum	115
Highest daily minimum	184
Lowest daily minimum	69
Heaviest daily rainfall	269
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 10 September 1984 by timescale: all-time 3, monthly 33, daily 788.

How Much Records Were Beaten By

658 broken records

Margins by which the 658 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 76.3. Ties are not counted.

Top 20 by Significance

10 September 1984

Top 20 records on 10 September 1984 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 September 1984	St Louis Lambert Intl AP, US	daily rain	73.4 mm (2.9 in)	62.2 mm (2.4 in)	39 years	55 of 100 (Notable)
10 September 1984	Akkol, KZ	daily rain	33.0 mm (1.3 in)	26.5 mm (1.0 in)	36 years	54 of 100 (Notable)
10 September 1984	Santo Antonio (Pcd), BR	daily rain	26.0 mm (1.0 in)	26.0 mm (1.0 in)	43 years	52 of 100 (Notable)
10 September 1984	Ely AP, US	daily rain	41.1 mm (1.6 in)	33.2 mm (1.3 in)	8 years	51 of 100 (Notable)
10 September 1984	Roebuck Plains, AU	monthly rain	61.4 mm (2.4 in)	28.8 mm (1.1 in)	10 years	49 of 100 (Notable)
10 September 1984	Huoshan, CN	daily rain	105.9 mm (4.2 in)	76.3 mm (3.0 in)	17 years	48 of 100 (Notable)
10 September 1984	Siliguri, IN	daily rain	101.1 mm (4.0 in)	34.6 mm (1.4 in)	82 years	43 of 100 (Notable)
10 September 1984	Birobidzhan, RU	daily rain	59.9 mm (2.4 in)	32.1 mm (1.3 in)	48 years	43 of 100 (Notable)
10 September 1984	Melnichnoe, RU	daily rain	46.6 mm (1.8 in)	22.4 mm (0.9 in)	45 years	42 of 100 (Notable)
10 September 1984	Hillsdale, US	daily rain	32.3 mm (1.3 in)	15.3 mm (0.6 in)	64 years	42 of 100 (Notable)
10 September 1984	Titusville, US	daily low max	25.6 C (78.1 F)	2.2 C (4.0 F)	79 years	41 of 100 (Notable)
10 September 1984	Melle, DE	daily rain	31.4 mm (1.2 in)	16.7 mm (0.7 in)	12 years	40 of 100 (Notable)
10 September 1984	Mackay Lost Rvr Rs, US	daily low min	-7.2 C (19.0 F)	5.0 C (9.0 F)	68 years	40 of 100 (Notable)
10 September 1984	Anadarko 3 E, US	daily high min	23.9 C (75.0 F)	2.2 C (4.0 F)	88 years	39 of 100 (Notable)
10 September 1984	Margaret River, AU	daily rain	41.6 mm (1.6 in)	21.3 mm (0.8 in)	11 years	38 of 100 (Notable)
10 September 1984	Arecibo 3 ESE, PR	daily low min	17.2 C (63.0 F)	2.8 C (5.0 F)	33 years	38 of 100 (Notable)
10 September 1984	Arcadia, US	daily rain	39.4 mm (1.6 in)	4.1 mm (0.16 in)	90 years	38 of 100 (Notable)
10 September 1984	Ekaterino-Nikolskoe, RU	monthly rain	80.8 mm (3.2 in)	16.8 mm (0.7 in)	22 years	37 of 100 (Notable)
10 September 1984	Orenburg, RU	daily low min	-0.6 C (30.9 F)	1.2 C (2.2 F)	87 years	37 of 100 (Notable)
10 September 1984	Brilon, DE	daily rain	36.9 mm (1.5 in)	12.0 mm (0.5 in)	41 years	36 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

1812 to 1984

Records set or tied on this calendar date in each year from 1812 to 1984. 1984 had 824 records.

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

Records on 09-10 in each year
Year	Records
1812	1
1813	1
1814	2
1818	1
1838	2
1841	1
1846	1
1847	1
1848	1
1850	2
1854	3
1857	1
1858	1
1865	5
1868	1
1869	2
1871	1
1874	2
1875	1
1876	2
1878	1
1879	2
1880	3
1881	2
1883	3
1884	4
1885	2
1886	1
1887	1
1888	2
1889	3
1890	1
1891	3
1892	3
1893	2
1894	4
1895	3
1896	1
1897	7
1898	4
1899	10
1901	1
1902	10
1903	13
1904	5
1905	7
1906	23
1907	15
1908	15
1909	25
1910	26
1911	8
1912	62
1913	24
1914	43
1915	53
1916	15
1917	79
1918	33
1919	42
1920	132
1921	207
1922	78
1923	38
1924	335
1925	197
1926	68
1927	262
1928	109
1929	282
1930	161
1931	724
1932	258
1933	333
1934	247
1935	478
1936	336
1937	376
1938	369
1939	386
1940	410
1941	389
1942	271
1943	352
1944	470
1945	334
1946	295
1947	534
1948	432
1949	793
1950	394
1951	344
1952	476
1953	250
1954	271
1955	376
1956	834
1957	332
1958	435
1959	670
1960	376
1961	459
1962	798
1963	384
1964	710
1965	355
1966	330
1967	512
1968	846
1969	635
1970	582
1971	400
1972	477
1973	559
1974	522
1975	528
1976	1,041
1977	391
1978	883
1979	563
1980	716
1981	629
1982	687
1983	1,329
1984	824
1985	1,140
1986	960
1987	574
1988	783
1989	1,098
1990	782
1991	827
1992	745
1993	936
1994	816
1995	643
1996	1,003
1997	829
1998	1,832
1999	1,068
2000	1,088
2001	1,129
2002	1,298
2003	1,149
2004	652
2005	1,173
2006	1,110
2007	866
2008	975
2009	636
2010	1,273
2011	1,235
2012	793
2013	1,198
2014	894
2015	789
2016	1,085
2017	674
2018	1,030
2019	816
2020	2,105
2021	1,311
2022	633
2023	1,114
2024	933
2025	583
2026	832

Download the Data

Data for records on 1984-09-10: 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	592
10 to 20	45
20 to 30	12
30 to 40	7
40 to 50	0
50 to 60	0
60 to 70	1
70 to 80	1