Weather Records on 25 September 1984

1,305 weather records were set or tied worldwide on 25 September 1984. Highest significance: Mt Pleasant 1 SW, US.

Key Facts for 25 September 1984

On 25 September 1984, 1,305 weather records were set or tied at long-record stations worldwide.
268 were record highs and 508 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 92 monthly and 1,213 daily.
Mt Pleasant 1 SW set a daily record precipitation of 111.8 mm (4.4 in) on 25 September 1984.
Across 163 earlier years (1825 to 2026) the same calendar date averaged 420 records.

Record Map

1,305 stations

1,305 station records on 25 September 1984 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 25 September 1984: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mt Pleasant 1 SW	United States	Record daily precipitation	111.8 mm (4.4 in)	59 of 100 (Notable)
Beloit	United States	Record daily precipitation	96.0 mm (3.8 in)	59 of 100 (Notable)
Crystal Falls 6 NE	United States	Record daily precipitation	69.1 mm (2.7 in)	56 of 100 (Notable)
Budapest	Hungary	Record daily precipitation	40.1 mm (1.6 in)	52 of 100 (Notable)
Shawano 2SSW	United States	Record daily precipitation	80.0 mm (3.1 in)	52 of 100 (Notable)
Biser	Russia	Record daily precipitation	28.0 mm (1.1 in)	51 of 100 (Notable)
Whitewater Wwtp	United States	Record daily precipitation	79.5 mm (3.1 in)	51 of 100 (Notable)
Faro	Sweden	Record daily precipitation	35.8 mm (1.4 in)	50 of 100 (Notable)
Alto Uruguai	Brazil	Record daily precipitation	89.0 mm (3.5 in)	49 of 100 (Notable)
Camp Crook	United States	Record snow depth	15.2 cm (6.0 in)	49 of 100 (Notable)
Eaton Rapids	United States	Record daily precipitation	48.3 mm (1.9 in)	48 of 100 (Notable)
Lake Mills Wwtp	United States	Record daily precipitation	78.5 mm (3.1 in)	48 of 100 (Notable)
Oconto 4 W	United States	Record daily precipitation	50.8 mm (2.0 in)	48 of 100 (Notable)
Ft Atkinson Wwtp	United States	Record daily precipitation	85.1 mm (3.4 in)	47 of 100 (Notable)
Woodbury	United States	Record daily precipitation	81.3 mm (3.2 in)	46 of 100 (Notable)
Madeline Is	United States	Record daily precipitation	48.3 mm (1.9 in)	46 of 100 (Notable)
Borkum-Suderstrasse	Germany	Record daily precipitation	28.1 mm (1.1 in)	45 of 100 (Notable)
Springview 2NW	United States	Record low maximum temperature	3.9 C (39.0 F)	45 of 100 (Notable)
Mitchell 2 N	United States	Record low maximum temperature	5.0 C (41.0 F)	45 of 100 (Notable)
Lastovo	Croatia	Record daily precipitation	58.8 mm (2.3 in)	44 of 100 (Notable)
Dunbar Forest Exp STN	United States	Record daily precipitation	92.7 mm (3.6 in)	44 of 100 (Notable)
Bridgeport	United States	Record daily snowfall	5.1 cm (2.0 in)	44 of 100 (Notable)
Sheridan Fld STN	United States	Record low minimum temperature	-15.6 C (3.9 F)	44 of 100 (Notable)
Philadelphia City	United States	Record high minimum temperature	23.3 C (73.9 F)	44 of 100 (Notable)
Galway	Ireland	Record low maximum temperature	11.8 C (53.2 F)	43 of 100 (Notable)
Korsakov	Russia	Record daily precipitation	26.0 mm (1.0 in)	43 of 100 (Notable)
Torntorp	Sweden	Record daily precipitation	29.9 mm (1.2 in)	43 of 100 (Notable)
Gavle	Sweden	Record daily precipitation	41.3 mm (1.6 in)	43 of 100 (Notable)
Mather 3 NW	United States	Record daily precipitation	53.8 mm (2.1 in)	43 of 100 (Notable)
Carazinho	Brazil	Record daily precipitation	80.0 mm (3.1 in)	42 of 100 (Notable)
Newport	United States	Record daily snowfall	5.1 cm (2.0 in)	42 of 100 (Notable)
Washburn	United States	Record low maximum temperature	1.7 C (35.1 F)	42 of 100 (Notable)
Waterdale	United States	Record daily snowfall	5.1 cm (2.0 in)	41 of 100 (Notable)
Rockville	United States	Record daily precipitation	52.1 mm (2.1 in)	41 of 100 (Notable)
Hopkinsville	United States	Record daily precipitation	78.7 mm (3.1 in)	41 of 100 (Notable)
Hurbanovo	Slovakia	Record daily precipitation	40.0 mm (1.6 in)	40 of 100 (Notable)
Moore Haven Lock 1	United States	Record low minimum temperature	17.2 C (63.0 F)	40 of 100 (Notable)
Angola	United States	Record daily precipitation	53.1 mm (2.1 in)	39 of 100 (Notable)
Leitchfield 2 N	United States	Record daily precipitation	61.5 mm (2.4 in)	39 of 100 (Notable)
Rock 1 E	United States	Record daily precipitation	46.2 mm (1.8 in)	39 of 100 (Notable)
Dubois	United States	Record snow depth	22.9 cm (9.0 in)	39 of 100 (Notable)
Colonia Xadrez	Brazil	Record daily precipitation	87.8 mm (3.5 in)	38 of 100 (Notable)
Harrisburg 12WNW	United States	Record daily snowfall	5.1 cm (2.0 in)	38 of 100 (Notable)
Wessington Springs	United States	Record low maximum temperature	7.8 C (46.0 F)	38 of 100 (Notable)
Sunnyside	United States	Record low minimum temperature	-3.9 C (25.0 F)	38 of 100 (Notable)
Gospic	Croatia	Record low maximum temperature	8.5 C (47.3 F)	37 of 100 (Notable)
Lysva	Russia	Record daily precipitation	29.1 mm (1.1 in)	37 of 100 (Notable)
Col du Grand St-Bernard	Switzerland	Record low maximum temperature	-3.7 C (25.3 F)	37 of 100 (Notable)
Hartford Wwtp	United States	Record high maximum temperature	29.4 C (84.9 F)	37 of 100 (Notable)
Oconomowoc Wwtp	United States	Record low minimum temperature	-0.6 C (30.9 F)	37 of 100 (Notable)
Greybull	United States	Record daily snowfall	12.7 cm (5.0 in)	37 of 100 (Notable)
Lucin	United States	Record low minimum temperature	-5.6 C (21.9 F)	37 of 100 (Notable)
Dokkum	Netherlands	Record daily precipitation	29.7 mm (1.2 in)	36 of 100 (Notable)
Goshen 3SW	United States	Record daily precipitation	62.0 mm (2.4 in)	36 of 100 (Notable)
Battle Creek 5NW	United States	Record daily precipitation	40.6 mm (1.6 in)	36 of 100 (Notable)
Fulton 3 W	United States	Record high maximum temperature	35.0 C (95.0 F)	36 of 100 (Notable)
Janesville	United States	Record daily precipitation	63.5 mm (2.5 in)	36 of 100 (Notable)
Hatteras	United States	Record high minimum temperature	24.4 C (75.9 F)	36 of 100 (Notable)
Xinyang	China	Record daily precipitation	48.3 mm (1.9 in)	35 of 100 (Notable)
Liepaja	Latvia	Record daily precipitation	28.7 mm (1.1 in)	35 of 100 (Notable)

Counts by Type and Timescale

1,305 records

Records set or tied on 25 September 1984 by type: Highest daily maximum 114, Lowest daily maximum 282, Highest daily minimum 154, Lowest daily minimum 226, Heaviest daily rainfall 414, Heaviest daily snowfall 59, Deepest snow cover 56.

Records on 25 September 1984 by type
Record type	Records
Highest daily maximum	114
Lowest daily maximum	282
Highest daily minimum	154
Lowest daily minimum	226
Heaviest daily rainfall	414
Heaviest daily snowfall	59
Deepest snow cover	56

Records on 25 September 1984 by timescale: all-time 0, monthly 92, daily 1,213.

How Much Records Were Beaten By

1,036 broken records

Margins by which the 1,036 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 229.0. Ties are not counted.

Top 20 by Significance

25 September 1984

Top 20 records on 25 September 1984 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 September 1984	Mt Pleasant 1 SW, US	daily rain	111.8 mm (4.4 in)	62.3 mm (2.5 in)	53 years	59 of 100 (Notable)
25 September 1984	Beloit, US	daily rain	96.0 mm (3.8 in)	53.8 mm (2.1 in)	53 years	59 of 100 (Notable)
25 September 1984	Crystal Falls 6 NE, US	daily rain	69.1 mm (2.7 in)	40.1 mm (1.6 in)	24 years	56 of 100 (Notable)
25 September 1984	Budapest, HU	daily rain	40.1 mm (1.6 in)	25.6 mm (1.0 in)	33 years	52 of 100 (Notable)
25 September 1984	Shawano 2SSW, US	daily rain	80.0 mm (3.1 in)	49.8 mm (2.0 in)	12 years	52 of 100 (Notable)
25 September 1984	Biser, RU	daily rain	28.0 mm (1.1 in)	10.4 mm (0.4 in)	74 years	51 of 100 (Notable)
25 September 1984	Whitewater Wwtp, US	daily rain	79.5 mm (3.1 in)	49.5 mm (1.9 in)	43 years	51 of 100 (Notable)
25 September 1984	Faro, SE	daily rain	35.8 mm (1.4 in)	29.1 mm (1.1 in)	26 years	50 of 100 (Notable)
25 September 1984	Alto Uruguai, BR	daily rain	89.0 mm (3.5 in)	65.0 mm (2.6 in)	21 years	49 of 100 (Notable)
25 September 1984	Camp Crook, US	daily snow depth	15.2 cm (6.0 in)	15.2 cm (6.0 in)	87 years	49 of 100 (Notable)
25 September 1984	Eaton Rapids, US	daily rain	48.3 mm (1.9 in)	29.8 mm (1.2 in)	41 years	48 of 100 (Notable)
25 September 1984	Lake Mills Wwtp, US	daily rain	78.5 mm (3.1 in)	31.8 mm (1.3 in)	53 years	48 of 100 (Notable)
25 September 1984	Oconto 4 W, US	daily rain	50.8 mm (2.0 in)	27.7 mm (1.1 in)	43 years	48 of 100 (Notable)
25 September 1984	Ft Atkinson Wwtp, US	daily rain	85.1 mm (3.4 in)	50.0 mm (2.0 in)	26 years	47 of 100 (Notable)
25 September 1984	Woodbury, US	daily rain	81.3 mm (3.2 in)	48.3 mm (1.9 in)	33 years	46 of 100 (Notable)
25 September 1984	Madeline Is, US	daily rain	48.3 mm (1.9 in)	29.2 mm (1.1 in)	31 years	46 of 100 (Notable)
25 September 1984	Borkum-Suderstrasse, DE	daily rain	28.1 mm (1.1 in)	17.1 mm (0.7 in)	41 years	45 of 100 (Notable)
25 September 1984	Springview 2NW, US	monthly low max	3.9 C (39.0 F)	1.7 C (3.1 F)	81 years	45 of 100 (Notable)
25 September 1984	Mitchell 2 N, US	monthly low max	5.0 C (41.0 F)	2.2 C (4.0 F)	76 years	45 of 100 (Notable)
25 September 1984	Lastovo, HR	daily rain	58.8 mm (2.3 in)	47.1 mm (1.9 in)	5 years	44 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

1825 to 1984

Records set or tied on this calendar date in each year from 1825 to 1984. 1984 had 1,305 records.

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

Records on 09-25 in each year
Year	Records
1825	1
1834	1
1836	1
1842	1
1843	1
1847	1
1851	1
1852	1
1855	1
1857	2
1859	1
1860	1
1863	1
1865	1
1866	2
1867	2
1868	1
1871	2
1872	1
1874	1
1875	1
1877	3
1879	2
1881	3
1884	3
1885	6
1886	1
1887	3
1889	7
1891	3
1893	7
1894	3
1895	5
1896	5
1897	2
1898	1
1899	2
1900	7
1901	6
1902	11
1903	4
1904	10
1905	16
1906	7
1907	35
1908	20
1909	22
1910	5
1911	9
1912	63
1913	13
1914	15
1915	43
1916	139
1917	138
1918	16
1919	20
1920	75
1921	32
1922	47
1923	68
1924	157
1925	141
1926	740
1927	166
1928	480
1929	158
1930	489
1931	500
1932	260
1933	542
1934	394
1935	258
1936	274
1937	190
1938	335
1939	454
1940	517
1941	269
1942	970
1943	488
1944	246
1945	514
1946	292
1947	666
1948	501
1949	479
1950	1,163
1951	639
1952	515
1953	242
1954	292
1955	546
1956	503
1957	231
1958	454
1959	396
1960	694
1961	530
1962	305
1963	602
1964	403
1965	690
1966	334
1967	428
1968	300
1969	196
1970	783
1971	323
1972	706
1973	650
1974	995
1975	1,166
1976	541
1977	875
1978	462
1979	719
1980	687
1981	669
1982	759
1983	647
1984	1,305
1985	446
1986	1,766
1987	560
1988	571
1989	1,367
1990	875
1991	1,243
1992	1,346
1993	1,015
1994	666
1995	1,013
1996	648
1997	1,278
1998	1,346
1999	804
2000	1,536
2001	1,536
2002	876
2003	758
2004	519
2005	1,484
2006	767
2007	1,284
2008	766
2009	854
2010	1,125
2011	763
2012	505
2013	615
2014	800
2015	868
2016	781
2017	1,253
2018	648
2019	530
2020	1,089
2021	355
2022	301
2023	580
2024	1,120
2025	569
2026	473

Download the Data

Data for records on 1984-09-25: 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 50	985
50 to 100	40
100 to 150	6
150 to 200	3
200 to 250	2