Weather Records on 18 October 1984

1,331 weather records were set or tied worldwide on 18 October 1984. Highest significance: Snake Creek Powerhouse, US.

Key Facts for 18 October 1984

On 18 October 1984, 1,331 weather records were set or tied at long-record stations worldwide.
291 were record highs and 488 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 45 monthly and 1,283 daily.
Snake Creek Powerhouse set a monthly record daily snowfall of 43.2 cm (17.0 in) on 18 October 1984.
Across 167 earlier years (1794 to 2025) the same calendar date averaged 428 records.

Record Map

1,331 stations

1,331 station records on 18 October 1984 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 October 1984: highest significance records shown on the map
Station	Country	Type	Value	Significance
Snake Creek Powerhouse	United States	Record daily snowfall	43.2 cm (17.0 in)	77 of 100 (Major)
Cottonwood Weir	United States	Record daily snowfall	63.5 cm (25.0 in)	58 of 100 (Notable)
Bailey	United States	Record snow depth	30.5 cm (12.0 in)	57 of 100 (Notable)
Bridgeport	United States	Record daily snowfall	10.2 cm (4.0 in)	57 of 100 (Notable)
Snake Creek Powerhouse	United States	Record snow depth	66.0 cm (26.0 in)	57 of 100 (Notable)
Prairie du Sac 2 N	United States	Record daily precipitation	49.8 mm (2.0 in)	57 of 100 (Notable)
Artik	Armenia	Record daily precipitation	39.0 mm (1.5 in)	56 of 100 (Notable)
Dilijan	Armenia	Record daily precipitation	30.6 mm (1.2 in)	56 of 100 (Notable)
Green Bay	United States	Record daily precipitation	52.3 mm (2.1 in)	56 of 100 (Notable)
Scotsburn (Mount Boninyong)	Australia	Record daily precipitation	40.4 mm (1.6 in)	55 of 100 (Notable)
Braganca	Portugal	Record daily precipitation	55.4 mm (2.2 in)	55 of 100 (Notable)
Madison Dane Co Rgnl AP	United States	Record daily precipitation	70.6 mm (2.8 in)	55 of 100 (Notable)
Kassler	United States	Record snow depth	25.4 cm (10.0 in)	54 of 100 (Notable)
Timpanogos Cave	United States	Record daily snowfall	21.6 cm (8.5 in)	54 of 100 (Notable)
Guffey 10 SE	United States	Record snow depth	25.4 cm (10.0 in)	53 of 100 (Notable)
Amberd (Koshabulakh)	Armenia	Record daily precipitation	41.0 mm (1.6 in)	52 of 100 (Notable)
Lermontovo	Armenia	Record daily precipitation	28.4 mm (1.1 in)	51 of 100 (Notable)
Fairfield	United States	Record daily precipitation	64.0 mm (2.5 in)	51 of 100 (Notable)
Ochoco Rs	United States	Record daily snowfall	10.2 cm (4.0 in)	51 of 100 (Notable)
Kapan	Armenia	Record daily precipitation	34.1 mm (1.3 in)	49 of 100 (Notable)
Chama	United States	Record snow depth	22.9 cm (9.0 in)	48 of 100 (Notable)
Mtn Dell Dam	United States	Record snow depth	48.3 cm (19.0 in)	48 of 100 (Notable)
Milwaukee Mitchell AP	United States	Record daily precipitation	47.8 mm (1.9 in)	48 of 100 (Notable)
Silverton	United States	Record snow depth	63.5 cm (25.0 in)	47 of 100 (Notable)
Mora	United States	Record daily precipitation	54.9 mm (2.2 in)	47 of 100 (Notable)
Ardmore 1 NW	United States	Record daily snowfall	20.3 cm (8.0 in)	47 of 100 (Notable)
Brodhead Wwtp	United States	Record daily precipitation	71.6 mm (2.8 in)	47 of 100 (Notable)
Redbird	United States	Record snow depth	12.7 cm (5.0 in)	46 of 100 (Notable)
Semenovka	Armenia	Record daily precipitation	34.6 mm (1.4 in)	45 of 100 (Notable)
Phrae	Thailand	Record daily precipitation	46.9 mm (1.8 in)	45 of 100 (Notable)
Crookston NW Exp STN	United States	Record daily precipitation	26.7 mm (1.1 in)	44 of 100 (Notable)
Brillion	United States	Record daily precipitation	66.5 mm (2.6 in)	44 of 100 (Notable)
Cedar Rapids Muni AP	United States	Record daily precipitation	61.0 mm (2.4 in)	44 of 100 (Notable)
Botlih	Russia	Record daily precipitation	37.5 mm (1.5 in)	43 of 100 (Notable)
Koffiefontein (Pol)	South Africa	Record daily precipitation	32.0 mm (1.3 in)	43 of 100 (Notable)
Fosston 1 E	United States	Record daily precipitation	37.3 mm (1.5 in)	43 of 100 (Notable)
Lyman	United States	Record daily snowfall	15.2 cm (6.0 in)	43 of 100 (Notable)
Spencer 6 SSE	United States	Record daily precipitation	40.4 mm (1.6 in)	43 of 100 (Notable)
Alpine	United States	Record daily snowfall	5.1 cm (2.0 in)	43 of 100 (Notable)
Spanish Fk Pwr House	United States	Record daily snowfall	7.6 cm (3.0 in)	43 of 100 (Notable)
Benson	United States	Record daily precipitation	72.9 mm (2.9 in)	42 of 100 (Notable)
Princeton	United States	Record daily precipitation	57.9 mm (2.3 in)	42 of 100 (Notable)
Kansas City Dwtn AP	United States	Record daily precipitation	51.1 mm (2.0 in)	42 of 100 (Notable)
Dubuque Rgnl AP	United States	Record daily precipitation	42.4 mm (1.7 in)	42 of 100 (Notable)
Agudos	Brazil	Record daily precipitation	90.3 mm (3.6 in)	41 of 100 (Notable)
Ozark 6 NNW	United States	Record high maximum temperature	35.0 C (95.0 F)	41 of 100 (Notable)
Shoshone	United States	Record snow depth	10.2 cm (4.0 in)	41 of 100 (Notable)
Columbus Junction	United States	Record daily precipitation	44.7 mm (1.8 in)	41 of 100 (Notable)
Milan 1NW	United States	Record daily precipitation	33.0 mm (1.3 in)	41 of 100 (Notable)
Matagorda #2	United States	Record daily precipitation	101.6 mm (4.0 in)	41 of 100 (Notable)
UNIV of Utah	United States	Record daily precipitation	28.4 mm (1.1 in)	41 of 100 (Notable)
Baraboo Wwtp	United States	Record daily precipitation	47.2 mm (1.9 in)	41 of 100 (Notable)
Egvard	Armenia	Record daily precipitation	27.0 mm (1.1 in)	40 of 100 (Notable)
Gravette	United States	Record daily precipitation	39.4 mm (1.6 in)	40 of 100 (Notable)
Petoskey	United States	Record daily precipitation	31.8 mm (1.3 in)	40 of 100 (Notable)
Olga 2 SE	United States	Record high maximum temperature	21.7 C (71.1 F)	40 of 100 (Notable)
Bolivar	United States	Record high minimum temperature	13.3 C (55.9 F)	39 of 100 (Notable)
Jewett	United States	Record daily precipitation	48.3 mm (1.9 in)	39 of 100 (Notable)
Beaver	United States	Record low minimum temperature	-12.8 C (9.0 F)	39 of 100 (Notable)
Heber	United States	Record snow depth	15.2 cm (6.0 in)	39 of 100 (Notable)

Counts by Type and Timescale

1,331 records

Records set or tied on 18 October 1984 by type: Highest daily maximum 173, Lowest daily maximum 335, Highest daily minimum 118, Lowest daily minimum 153, Heaviest daily rainfall 353, Heaviest daily snowfall 92, Deepest snow cover 107.

Records on 18 October 1984 by type
Record type	Records
Highest daily maximum	173
Lowest daily maximum	335
Highest daily minimum	118
Lowest daily minimum	153
Heaviest daily rainfall	353
Heaviest daily snowfall	92
Deepest snow cover	107

Records on 18 October 1984 by timescale: all-time 3, monthly 45, daily 1,283.

How Much Records Were Beaten By

1,054 broken records

Margins by which the 1,054 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 381.0. Ties are not counted.

Top 20 by Significance

18 October 1984

Top 20 records on 18 October 1984 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 October 1984	Snake Creek Powerhouse, US	monthly snowfall	43.2 cm (17.0 in)	24.1 cm (9.5 in)	66 years	77 of 100 (Major)
18 October 1984	Cottonwood Weir, US	all-time snowfall	63.5 cm (25.0 in)	12.7 cm (5.0 in)	45 years	58 of 100 (Notable)
18 October 1984	Bailey, US	daily snow depth	30.5 cm (12.0 in)	30.5 cm (12.0 in)	44 years	57 of 100 (Notable)
18 October 1984	Bridgeport, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	86 years	57 of 100 (Notable)
18 October 1984	Snake Creek Powerhouse, US	monthly snow depth	66.0 cm (26.0 in)	38.1 cm (15.0 in)	0 years	57 of 100 (Notable)
18 October 1984	Prairie du Sac 2 N, US	daily rain	49.8 mm (2.0 in)	26.4 mm (1.0 in)	63 years	57 of 100 (Notable)
18 October 1984	Artik, AM	daily rain	39.0 mm (1.5 in)	27.4 mm (1.1 in)	42 years	56 of 100 (Notable)
18 October 1984	Dilijan, AM	daily rain	30.6 mm (1.2 in)	24.9 mm (1.0 in)	42 years	56 of 100 (Notable)
18 October 1984	Green Bay, US	daily rain	52.3 mm (2.1 in)	24.6 mm (1.0 in)	61 years	56 of 100 (Notable)
18 October 1984	Scotsburn (Mount Boninyong), AU	daily rain	40.4 mm (1.6 in)	15.8 mm (0.6 in)	79 years	55 of 100 (Notable)
18 October 1984	Braganca, PT	daily rain	55.4 mm (2.2 in)	43.4 mm (1.7 in)	38 years	55 of 100 (Notable)
18 October 1984	Madison Dane Co Rgnl AP, US	monthly rain	70.6 mm (2.8 in)	26.1 mm (1.0 in)	30 years	55 of 100 (Notable)
18 October 1984	Kassler, US	daily snow depth	25.4 cm (10.0 in)	22.9 cm (9.0 in)	52 years	54 of 100 (Notable)
18 October 1984	Timpanogos Cave, US	daily snowfall	21.6 cm (8.5 in)	21.6 cm (8.5 in)	37 years	54 of 100 (Notable)
18 October 1984	Guffey 10 SE, US	daily snow depth	25.4 cm (10.0 in)	25.4 cm (10.0 in)	34 years	53 of 100 (Notable)
18 October 1984	Amberd (Koshabulakh), AM	daily rain	41.0 mm (1.6 in)	25.4 mm (1.0 in)	42 years	52 of 100 (Notable)
18 October 1984	Lermontovo, AM	daily rain	28.4 mm (1.1 in)	22.9 mm (0.9 in)	42 years	51 of 100 (Notable)
18 October 1984	Fairfield, US	daily rain	64.0 mm (2.5 in)	22.1 mm (0.9 in)	82 years	51 of 100 (Notable)
18 October 1984	Ochoco Rs, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	75 years	51 of 100 (Notable)
18 October 1984	Kapan, AM	daily rain	34.1 mm (1.3 in)	26.2 mm (1.0 in)	33 years	49 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

1794 to 1984

Records set or tied on this calendar date in each year from 1794 to 1984. 1984 had 1,331 records.

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

Records on 10-18 in each year
Year	Records
1794	1
1796	1
1799	1
1806	1
1807	1
1810	1
1811	2
1817	1
1832	1
1835	1
1836	1
1843	1
1846	2
1848	1
1849	1
1851	1
1852	1
1859	1
1863	1
1865	2
1866	2
1868	1
1869	1
1871	1
1872	1
1874	4
1876	2
1877	2
1879	3
1881	1
1882	1
1883	2
1887	1
1888	1
1890	4
1892	4
1893	1
1894	3
1895	2
1897	6
1898	5
1899	12
1900	5
1901	5
1902	6
1903	9
1904	12
1905	27
1906	17
1907	11
1908	44
1909	23
1910	50
1911	22
1912	12
1913	26
1914	52
1915	12
1916	64
1917	109
1918	24
1919	31
1920	87
1921	87
1922	59
1923	114
1924	151
1925	153
1926	149
1927	309
1928	316
1929	190
1930	507
1931	350
1932	446
1933	264
1934	222
1935	360
1936	483
1937	671
1938	536
1939	475
1940	532
1941	240
1942	332
1943	844
1944	264
1945	398
1946	355
1947	965
1948	1,128
1949	665
1950	996
1951	325
1952	394
1953	678
1954	621
1955	403
1956	578
1957	220
1958	407
1959	246
1960	612
1961	362
1962	252
1963	492
1964	311
1965	1,066
1966	613
1967	405
1968	737
1969	789
1970	501
1971	1,199
1972	1,581
1973	789
1974	746
1975	779
1976	1,326
1977	533
1978	545
1979	555
1980	1,024
1981	680
1982	654
1983	684
1984	1,331
1985	831
1986	344
1987	518
1988	733
1989	1,196
1990	1,043
1991	999
1992	1,295
1993	1,051
1994	1,296
1995	1,227
1996	795
1997	1,240
1998	1,323
1999	773
2000	823
2001	818
2002	878
2003	1,097
2004	1,156
2005	755
2006	1,328
2007	1,298
2008	531
2009	1,546
2010	634
2011	736
2012	741
2013	430
2014	690
2015	915
2016	1,511
2017	590
2018	759
2019	346
2020	957
2021	387
2022	1,334
2023	693
2024	1,142
2025	367

Download the Data

Data for records on 1984-10-18: 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	959
50 to 100	60
100 to 150	17
150 to 200	11
200 to 250	4
250 to 300	1
300 to 350	1
350 to 400	1