Weather Records on 27 September 1984

1,297 weather records were set or tied worldwide on 27 September 1984. Highest significance: Imeny_T.G.Shevchenko, UA.

Key Facts for 27 September 1984

On 27 September 1984, 1,297 weather records were set or tied at long-record stations worldwide.
106 were record highs and 794 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 107 monthly and 1,190 daily.
Imeny_T.G.Shevchenko set a daily record precipitation of 42.5 mm (1.7 in) on 27 September 1984.
Across 154 earlier years (1799 to 2026) the same calendar date averaged 445 records.

Record Map

1,297 stations

1,297 station records on 27 September 1984 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 September 1984: highest significance records shown on the map
Station	Country	Type	Value	Significance
Imeny_T.G.Shevchenko	Ukraine	Record daily precipitation	42.5 mm (1.7 in)	51 of 100 (Notable)
Loxahatchee	United States	Record daily precipitation	138.4 mm (5.4 in)	51 of 100 (Notable)
Novomirgorod	Ukraine	Record daily precipitation	40.6 mm (1.6 in)	50 of 100 (Notable)
Krasnaja_Gora	Russia	Record daily precipitation	35.7 mm (1.4 in)	49 of 100 (Notable)
Ardmore 1 NW	United States	Record daily snowfall	10.2 cm (4.0 in)	49 of 100 (Notable)
Zanthus	Australia	Record daily precipitation	30.0 mm (1.2 in)	48 of 100 (Notable)
Jataizinho Aneel/Cesp	Brazil	Record daily precipitation	93.2 mm (3.7 in)	48 of 100 (Notable)
Sidney 1SSE	United States	Record low maximum temperature	9.4 C (48.9 F)	48 of 100 (Notable)
Grindsjon	Sweden	Record daily precipitation	37.7 mm (1.5 in)	45 of 100 (Notable)
Butte Bert Mooney AP	United States	Record snow depth	10.2 cm (4.0 in)	45 of 100 (Notable)
Lead	United States	Record daily snowfall	8.1 cm (3.2 in)	44 of 100 (Notable)
Daytona Beach Intl AP	United States	Record daily precipitation	103.1 mm (4.1 in)	44 of 100 (Notable)
Pitas	Brazil	Record daily precipitation	39.6 mm (1.6 in)	43 of 100 (Notable)
Tierra Blanca (Smn)	Mexico	Record low minimum temperature	12.8 C (55.0 F)	43 of 100 (Notable)
Bridger 2 N	United States	Record daily snowfall	5.1 cm (2.0 in)	43 of 100 (Notable)
Basin	United States	Record daily snowfall	5.1 cm (2.0 in)	43 of 100 (Notable)
Pitangueiras	Brazil	Record daily precipitation	50.7 mm (2.0 in)	41 of 100 (Notable)
Vila Carmem	Brazil	Record daily precipitation	65.4 mm (2.6 in)	41 of 100 (Notable)
Clarksdale	United States	Record low maximum temperature	14.4 C (57.9 F)	41 of 100 (Notable)
Deaver	United States	Record daily snowfall	7.6 cm (3.0 in)	41 of 100 (Notable)
Sao Paulo (Aeroport	Brazil	Record daily precipitation	38.7 mm (1.5 in)	40 of 100 (Notable)
Usina Chibarro (Cpfl)	Brazil	Record daily precipitation	57.6 mm (2.3 in)	39 of 100 (Notable)
Ibate	Brazil	Record daily precipitation	58.7 mm (2.3 in)	39 of 100 (Notable)
Barao de Antonina	Brazil	Record daily precipitation	56.0 mm (2.2 in)	39 of 100 (Notable)
Brjansk	Russia	Record daily precipitation	26.3 mm (1.0 in)	39 of 100 (Notable)
Marianna 2 S	United States	Record low maximum temperature	13.9 C (57.0 F)	39 of 100 (Notable)
Gibson Dam	United States	Record snow depth	25.4 cm (10.0 in)	39 of 100 (Notable)
Mount Narryer	Australia	Record daily precipitation	25.0 mm (1.0 in)	38 of 100 (Notable)
Mococa	Brazil	Record daily precipitation	59.1 mm (2.3 in)	38 of 100 (Notable)
Kotlas	Russia	Record daily precipitation	28.3 mm (1.1 in)	38 of 100 (Notable)
Caledonia	United States	Record low minimum temperature	-2.8 C (27.0 F)	38 of 100 (Notable)
Waynesboro	United States	Record low maximum temperature	13.9 C (57.0 F)	38 of 100 (Notable)
Scottsbluff W B Heilig Fld AP	United States	Record low maximum temperature	6.1 C (43.0 F)	38 of 100 (Notable)
Monte Azul Paulista	Brazil	Record daily precipitation	45.1 mm (1.8 in)	37 of 100 (Notable)
Kon-Kolodez	Russia	Record high maximum temperature	27.0 C (80.6 F)	37 of 100 (Notable)
Tiskilwa 2 SE	United States	Record low maximum temperature	11.7 C (53.1 F)	37 of 100 (Notable)
Windsor	United States	Record low maximum temperature	14.4 C (57.9 F)	37 of 100 (Notable)
Graham	United States	Record low maximum temperature	10.0 C (50.0 F)	37 of 100 (Notable)
Buffalo Bill Dam	United States	Record low maximum temperature	2.8 C (37.0 F)	37 of 100 (Notable)
Guaxupe Aneel/Cesp	Brazil	Record daily precipitation	44.5 mm (1.8 in)	36 of 100 (Notable)
Roosevelt 1 S	United States	Record daily precipitation	36.3 mm (1.4 in)	36 of 100 (Notable)
Camden 1	United States	Record low maximum temperature	16.7 C (62.1 F)	36 of 100 (Notable)
Auburn 2 SSE	United States	Record low maximum temperature	11.7 C (53.1 F)	36 of 100 (Notable)
Abilene	United States	Record low minimum temperature	2.2 C (36.0 F)	36 of 100 (Notable)
Ness City	United States	Record low maximum temperature	10.0 C (50.0 F)	36 of 100 (Notable)
Carrollton Lock 1	United States	Record low maximum temperature	17.2 C (63.0 F)	36 of 100 (Notable)
Hiram	United States	Record low maximum temperature	10.0 C (50.0 F)	36 of 100 (Notable)
Meeker 5 W	United States	Record low maximum temperature	13.9 C (57.0 F)	36 of 100 (Notable)
Tamandua	Brazil	Record daily precipitation	47.2 mm (1.9 in)	35 of 100 (Notable)
Mankato	United States	Record low minimum temperature	0.0 C (32.0 F)	35 of 100 (Notable)
Albion 1 N	United States	Record daily snowfall	10.2 cm (4.0 in)	35 of 100 (Notable)
Clearmont 5 SW	United States	Record daily snowfall	11.4 cm (4.5 in)	35 of 100 (Notable)
Princeton	United States	Record low maximum temperature	10.6 C (51.1 F)	34 of 100 (Routine)
Greenville 2 NE	United States	Record low maximum temperature	13.9 C (57.0 F)	34 of 100 (Routine)
Carthage	United States	Record low maximum temperature	16.1 C (61.0 F)	34 of 100 (Routine)
Bowie	United States	Record low maximum temperature	14.4 C (57.9 F)	34 of 100 (Routine)
Bowling Green Warren Co AP	United States	Record low maximum temperature	13.3 C (55.9 F)	34 of 100 (Routine)
Jerome	United States	Record low maximum temperature	16.7 C (62.1 F)	33 of 100 (Routine)
Milledgeville	United States	Record high maximum temperature	37.2 C (99.0 F)	33 of 100 (Routine)
Mora	United States	Record low minimum temperature	-6.7 C (19.9 F)	33 of 100 (Routine)

Counts by Type and Timescale

1,297 records

Records set or tied on 27 September 1984 by type: Highest daily maximum 66, Lowest daily maximum 595, Highest daily minimum 40, Lowest daily minimum 199, Heaviest daily rainfall 318, Heaviest daily snowfall 40, Deepest snow cover 39.

Records on 27 September 1984 by type
Record type	Records
Highest daily maximum	66
Lowest daily maximum	595
Highest daily minimum	40
Lowest daily minimum	199
Heaviest daily rainfall	318
Heaviest daily snowfall	40
Deepest snow cover	39

Records on 27 September 1984 by timescale: all-time 0, monthly 107, daily 1,190.

How Much Records Were Beaten By

1,045 broken records

Margins by which the 1,045 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 152.0. Ties are not counted.

Top 20 by Significance

27 September 1984

Top 20 records on 27 September 1984 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 September 1984	Imeny_T.G.Shevchenko, UA	daily rain	42.5 mm (1.7 in)	27.2 mm (1.1 in)	26 years	51 of 100 (Notable)
27 September 1984	Loxahatchee, US	daily rain	138.4 mm (5.4 in)	83.5 mm (3.3 in)	30 years	51 of 100 (Notable)
27 September 1984	Novomirgorod, UA	daily rain	40.6 mm (1.6 in)	27.3 mm (1.1 in)	26 years	50 of 100 (Notable)
27 September 1984	Krasnaja_Gora, RU	daily rain	35.7 mm (1.4 in)	25.0 mm (1.0 in)	16 years	49 of 100 (Notable)
27 September 1984	Ardmore 1 NW, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	74 years	49 of 100 (Notable)
27 September 1984	Zanthus, AU	daily rain	30.0 mm (1.2 in)	25.4 mm (1.0 in)	16 years	48 of 100 (Notable)
27 September 1984	Jataizinho Aneel/Cesp, BR	monthly rain	93.2 mm (3.7 in)	31.1 mm (1.2 in)	27 years	48 of 100 (Notable)
27 September 1984	Sidney 1SSE, US	monthly low max	9.4 C (48.9 F)	1.7 C (3.1 F)	88 years	48 of 100 (Notable)
27 September 1984	Grindsjon, SE	daily rain	37.7 mm (1.5 in)	23.1 mm (0.9 in)	24 years	45 of 100 (Notable)
27 September 1984	Butte Bert Mooney AP, US	daily snow depth	10.2 cm (4.0 in)	10.2 cm (4.0 in)	88 years	45 of 100 (Notable)
27 September 1984	Lead, US	daily snowfall	8.1 cm (3.2 in)	6.8 cm (2.7 in)	68 years	44 of 100 (Notable)
27 September 1984	Daytona Beach Intl AP, US	daily rain	103.1 mm (4.1 in)	53.8 mm (2.1 in)	44 years	44 of 100 (Notable)
27 September 1984	Pitas, BR	daily rain	39.6 mm (1.6 in)	28.9 mm (1.1 in)	19 years	43 of 100 (Notable)
27 September 1984	Tierra Blanca (Smn), MX	daily low min	12.8 C (55.0 F)	4.4 C (7.9 F)	62 years	43 of 100 (Notable)
27 September 1984	Bridger 2 N, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	84 years	43 of 100 (Notable)
27 September 1984	Basin, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	84 years	43 of 100 (Notable)
27 September 1984	Pitangueiras, BR	daily rain	50.7 mm (2.0 in)	32.8 mm (1.3 in)	43 years	41 of 100 (Notable)
27 September 1984	Vila Carmem, BR	daily rain	65.4 mm (2.6 in)	43.4 mm (1.7 in)	8 years	41 of 100 (Notable)
27 September 1984	Clarksdale, US	monthly low max	14.4 C (57.9 F)	0.6 C (1.1 F)	72 years	41 of 100 (Notable)
27 September 1984	Deaver, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	67 years	41 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

1799 to 1984

Records set or tied on this calendar date in each year from 1799 to 1984. 1984 had 1,297 records.

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

Records on 09-27 in each year
Year	Records
1799	1
1828	1
1836	2
1847	1
1851	1
1854	2
1855	2
1859	2
1866	2
1867	3
1874	1
1875	1
1877	2
1880	1
1881	4
1882	1
1885	5
1887	1
1890	3
1891	1
1892	1
1893	1
1894	5
1895	6
1896	1
1897	2
1898	4
1899	1
1900	5
1901	3
1902	12
1903	7
1904	12
1905	21
1906	21
1907	9
1908	36
1909	17
1910	20
1911	31
1912	25
1913	27
1914	24
1915	80
1916	57
1917	41
1918	58
1919	45
1920	54
1921	26
1922	111
1923	125
1924	115
1925	129
1926	581
1927	244
1928	288
1929	225
1930	178
1931	222
1932	194
1933	559
1934	298
1935	319
1936	435
1937	309
1938	366
1939	572
1940	706
1941	257
1942	1,353
1943	503
1944	323
1945	475
1946	387
1947	813
1948	405
1949	407
1950	223
1951	480
1952	539
1953	567
1954	507
1955	386
1956	825
1957	644
1958	585
1959	582
1960	337
1961	376
1962	352
1963	849
1964	724
1965	688
1966	426
1967	502
1968	286
1969	233
1970	773
1971	762
1972	989
1973	1,031
1974	408
1975	790
1976	905
1977	852
1978	773
1979	741
1980	559
1981	680
1982	1,076
1983	791
1984	1,297
1985	661
1986	1,772
1987	1,013
1988	494
1989	852
1990	379
1991	894
1992	659
1993	727
1994	764
1995	698
1996	1,468
1997	730
1998	1,774
1999	1,059
2000	1,031
2001	980
2002	992
2003	830
2004	665
2005	1,061
2006	596
2007	1,091
2008	659
2009	987
2010	1,153
2011	965
2012	624
2013	823
2014	813
2015	664
2016	600
2017	891
2018	600
2019	755
2020	659
2021	893
2022	642
2023	747
2024	1,449
2025	272
2026	358

Download the Data

Data for records on 1984-09-27: 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	943
20 to 40	59
40 to 60	18
60 to 80	14
80 to 100	1
100 to 120	7
120 to 140	2
140 to 160	1