Weather Records on 18 December 1998

863 weather records were set or tied worldwide on 18 December 1998. Highest significance: Douglas 1 SE, US.

Key Facts for 18 December 1998

On 18 December 1998, 863 weather records were set or tied at long-record stations worldwide.
581 were record highs and 94 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 8 monthly and 854 daily.
Douglas 1 SE set a daily record snowfall of 15.2 cm (6.0 in) on 18 December 1998.
Across 156 earlier years (1793 to 2025) the same calendar date averaged 477 records.

Record Map

863 stations

863 station records on 18 December 1998 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 December 1998: highest significance records shown on the map
Station	Country	Type	Value	Significance
Douglas 1 SE	United States	Record daily snowfall	15.2 cm (6.0 in)	62 of 100 (Major)
Potter	United States	Record daily snowfall	17.8 cm (7.0 in)	54 of 100 (Notable)
Anaconda	United States	Record daily snowfall	12.7 cm (5.0 in)	51 of 100 (Notable)
Stevensville	United States	Record daily snowfall	12.7 cm (5.0 in)	49 of 100 (Notable)
Cold Bay AP	United States	Record daily precipitation	29.2 mm (1.1 in)	48 of 100 (Notable)
Sandy Hook	United States	Record high maximum temperature	13.3 C (55.9 F)	47 of 100 (Notable)
Goldbutte 7 N	United States	Record daily snowfall	15.2 cm (6.0 in)	46 of 100 (Notable)
Kelliher	United States	Record daily snowfall	14.0 cm (5.5 in)	43 of 100 (Notable)
Mayaguez City	Puerto Rico [United States]	Record high maximum temperature	34.4 C (93.9 F)	41 of 100 (Notable)
Seward	United States	Record high minimum temperature	3.9 C (39.0 F)	41 of 100 (Notable)
Escalante	United States	Record high maximum temperature	16.1 C (61.0 F)	41 of 100 (Notable)
Marshall	United States	Record daily snowfall	5.1 cm (2.0 in)	40 of 100 (Notable)
Duchesne	United States	Record high maximum temperature	10.6 C (51.1 F)	38 of 100 (Notable)
Talisman I	Mexico	Record high minimum temperature	22.8 C (73.0 F)	37 of 100 (Notable)
Kadoka	United States	Record high maximum temperature	16.7 C (62.1 F)	37 of 100 (Notable)
Castle Rock	United States	Record high maximum temperature	19.4 C (66.9 F)	36 of 100 (Notable)
Cotton	United States	Record daily snowfall	11.4 cm (4.5 in)	36 of 100 (Notable)
Pokegama Dam	United States	Record daily snowfall	14.0 cm (5.5 in)	36 of 100 (Notable)
Deaver	United States	Record high maximum temperature	16.1 C (61.0 F)	36 of 100 (Notable)
Anthony	United States	Record high minimum temperature	5.6 C (42.1 F)	36 of 100 (Notable)
Newport Beach Harbor	United States	Record high maximum temperature	25.6 C (78.1 F)	35 of 100 (Notable)
Dyer 5S	United States	Record high maximum temperature	16.7 C (62.1 F)	35 of 100 (Notable)
San Miguel Ejutla	Mexico	Record high maximum temperature	33.9 C (93.0 F)	33 of 100 (Routine)
Brawley 2 SW	United States	Record high maximum temperature	28.3 C (82.9 F)	33 of 100 (Routine)
Remer #2	United States	Record daily snowfall	12.2 cm (4.8 in)	33 of 100 (Routine)
Hay Springs	United States	Record high maximum temperature	18.3 C (64.9 F)	33 of 100 (Routine)
Marillana	Australia	Record daily precipitation	48.0 mm (1.9 in)	32 of 100 (Routine)
Annean	Australia	Record daily precipitation	29.6 mm (1.2 in)	32 of 100 (Routine)
Bowman	United States	Record high maximum temperature	15.6 C (60.1 F)	32 of 100 (Routine)
Langdon Exp Farm	United States	Record daily snowfall	8.4 cm (3.3 in)	32 of 100 (Routine)
Gordon 6N	United States	Record high maximum temperature	17.8 C (64.0 F)	31 of 100 (Routine)
Wauneta	United States	Record daily snowfall	7.6 cm (3.0 in)	31 of 100 (Routine)
Hettinger	United States	Record high maximum temperature	16.1 C (61.0 F)	31 of 100 (Routine)
Goodman Sanitary Dist	United States	Record daily snowfall	15.2 cm (6.0 in)	31 of 100 (Routine)
Pembina	United States	Record daily snowfall	10.2 cm (4.0 in)	31 of 100 (Routine)
Kotzebue AP	United States	Record daily snowfall	13.0 cm (5.1 in)	31 of 100 (Routine)
Tecamachalco	Mexico	Record low maximum temperature	15.6 C (60.1 F)	30 of 100 (Routine)
Dimas	Mexico	Record low minimum temperature	2.8 C (37.0 F)	30 of 100 (Routine)
Haparanda	Sweden	Record high maximum temperature	6.1 C (43.0 F)	30 of 100 (Routine)
Wamego 4 W	United States	Record high minimum temperature	6.7 C (44.1 F)	30 of 100 (Routine)
Tensleep 4NE	United States	Record daily snowfall	25.4 cm (10.0 in)	29 of 100 (Routine)
Parral A. El Hormiguero	Mexico	Record high minimum temperature	12.8 C (55.0 F)	28 of 100 (Routine)
Briksdal	Norway	Record daily precipitation	46.3 mm (1.8 in)	28 of 100 (Routine)
Agassiz Refuge	United States	Record daily snowfall	7.1 cm (2.8 in)	28 of 100 (Routine)
Phelps	United States	Record daily snowfall	14.0 cm (5.5 in)	28 of 100 (Routine)
Miami	United States	Record high maximum temperature	23.3 C (73.9 F)	27 of 100 (Routine)
Death Valley Np	United States	Record high maximum temperature	30.0 C (86.0 F)	27 of 100 (Routine)
Jefferson 3SE	United States	Record high minimum temperature	7.2 C (45.0 F)	27 of 100 (Routine)
Union City Filtration Plt	United States	Record daily snowfall	27.9 cm (11.0 in)	27 of 100 (Routine)
Orderville	United States	Record high minimum temperature	10.0 C (50.0 F)	27 of 100 (Routine)
Chengshantou	China	Record high maximum temperature	13.3 C (55.9 F)	26 of 100 (Routine)
Altamirano (Smn)	Mexico	Record low maximum temperature	12.8 C (55.0 F)	26 of 100 (Routine)
Ciudad Serdan (Smn)	Mexico	Record low minimum temperature	-7.2 C (19.0 F)	26 of 100 (Routine)
Nordoyan Fyr	Norway	Record high maximum temperature	11.1 C (52.0 F)	26 of 100 (Routine)
Oslo Blindern	Norway	Record high minimum temperature	4.2 C (39.6 F)	26 of 100 (Routine)
Litchfield Park	United States	Record high maximum temperature	27.2 C (81.0 F)	26 of 100 (Routine)
Paso Robles	United States	Record high maximum temperature	25.0 C (77.0 F)	26 of 100 (Routine)
Porterville	United States	Record high maximum temperature	23.9 C (75.0 F)	26 of 100 (Routine)
Troy	United States	Record high maximum temperature	11.1 C (52.0 F)	26 of 100 (Routine)
Intl Falls Intl AP	United States	Record daily snowfall	13.2 cm (5.2 in)	26 of 100 (Routine)

Counts by Type and Timescale

863 records

Records set or tied on 18 December 1998 by type: Highest daily maximum 328, Lowest daily maximum 37, Highest daily minimum 253, Lowest daily minimum 57, Heaviest daily rainfall 113, Heaviest daily snowfall 72, Deepest snow cover 3.

Records on 18 December 1998 by type
Record type	Records
Highest daily maximum	328
Lowest daily maximum	37
Highest daily minimum	253
Lowest daily minimum	57
Heaviest daily rainfall	113
Heaviest daily snowfall	72
Deepest snow cover	3

Records on 18 December 1998 by timescale: all-time 1, monthly 8, daily 854.

How Much Records Were Beaten By

698 broken records

Margins by which the 698 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 140.0. Ties are not counted.

Top 20 by Significance

18 December 1998

Top 20 records on 18 December 1998 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 December 1998	Douglas 1 SE, US	daily snowfall	15.2 cm (6.0 in)	12.7 cm (5.0 in)	76 years	62 of 100 (Major)
18 December 1998	Potter, US	daily snowfall	17.8 cm (7.0 in)	14.0 cm (5.5 in)	52 years	54 of 100 (Notable)
18 December 1998	Anaconda, US	daily snowfall	12.7 cm (5.0 in)	8.1 cm (3.2 in)	84 years	51 of 100 (Notable)
18 December 1998	Stevensville, US	daily snowfall	12.7 cm (5.0 in)	8.9 cm (3.5 in)	72 years	49 of 100 (Notable)
18 December 1998	Cold Bay AP, US	daily rain	29.2 mm (1.1 in)	19.5 mm (0.8 in)	44 years	48 of 100 (Notable)
18 December 1998	Sandy Hook, US	daily high max	13.3 C (55.9 F)	3.9 C (7.0 F)	120 years	47 of 100 (Notable)
18 December 1998	Goldbutte 7 N, US	daily snowfall	15.2 cm (6.0 in)	3.8 cm (1.5 in)	88 years	46 of 100 (Notable)
18 December 1998	Kelliher, US	daily snowfall	14.0 cm (5.5 in)	11.5 cm (4.5 in)	31 years	43 of 100 (Notable)
18 December 1998	Mayaguez City, PR	daily high max	34.4 C (93.9 F)	1.6 C (2.9 F)	71 years	41 of 100 (Notable)
18 December 1998	Seward, US	daily high min	3.9 C (39.0 F)	2.2 C (4.0 F)	97 years	41 of 100 (Notable)
18 December 1998	Escalante, US	daily high max	16.1 C (61.0 F)	1.7 C (3.1 F)	96 years	41 of 100 (Notable)
18 December 1998	Marshall, US	daily snowfall	5.1 cm (2.0 in)	1.3 cm (0.5 in)	93 years	40 of 100 (Notable)
18 December 1998	Duchesne, US	daily high max	10.6 C (51.1 F)	2.8 C (5.0 F)	81 years	38 of 100 (Notable)
18 December 1998	Talisman I, MX	daily high min	22.8 C (73.0 F)	2.2 C (4.0 F)	52 years	37 of 100 (Notable)
18 December 1998	Kadoka, US	daily high max	16.7 C (62.1 F)	3.9 C (7.0 F)	80 years	37 of 100 (Notable)
18 December 1998	Castle Rock, US	daily high max	19.4 C (66.9 F)	1.6 C (2.9 F)	80 years	36 of 100 (Notable)
18 December 1998	Cotton, US	daily snowfall	11.4 cm (4.5 in)	7.6 cm (3.0 in)	28 years	36 of 100 (Notable)
18 December 1998	Pokegama Dam, US	daily snowfall	14.0 cm (5.5 in)	5.1 cm (2.0 in)	40 years	36 of 100 (Notable)
18 December 1998	Deaver, US	daily high max	16.1 C (61.0 F)	3.3 C (5.9 F)	80 years	36 of 100 (Notable)
18 December 1998	Anthony, US	daily high min	5.6 C (42.1 F)	1.2 C (2.2 F)	80 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

1793 to 1998

Records set or tied on this calendar date in each year from 1793 to 1998. 1998 had 863 records.

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

Records on 12-18 in each year
Year	Records
1793	1
1796	1
1805	1
1814	1
1825	1
1846	1
1849	1
1852	2
1858	1
1859	4
1862	2
1864	1
1868	1
1873	1
1875	1
1876	2
1878	1
1881	2
1882	1
1884	2
1886	1
1887	1
1888	1
1889	4
1890	5
1892	4
1894	8
1895	1
1897	4
1898	9
1899	3
1900	2
1901	6
1902	33
1903	11
1904	25
1905	3
1906	21
1907	15
1908	16
1909	18
1910	19
1911	9
1912	33
1913	38
1914	20
1915	28
1916	57
1917	62
1918	21
1919	117
1920	77
1921	123
1922	108
1923	378
1924	480
1925	74
1926	173
1927	151
1928	165
1929	366
1930	230
1931	360
1932	353
1933	506
1934	209
1935	138
1936	466
1937	459
1938	185
1939	900
1940	242
1941	213
1942	281
1943	419
1944	191
1945	598
1946	199
1947	266
1948	354
1949	561
1950	289
1951	867
1952	450
1953	373
1954	507
1955	611
1956	333
1957	901
1958	524
1959	477
1960	477
1961	885
1962	759
1963	571
1964	840
1965	402
1966	644
1967	1,105
1968	488
1969	376
1970	502
1971	387
1972	375
1973	1,008
1974	229
1975	625
1976	459
1977	992
1978	946
1979	1,087
1980	772
1981	1,362
1982	537
1983	2,014
1984	1,439
1985	1,384
1986	875
1987	1,505
1988	1,061
1989	1,818
1990	1,367
1991	756
1992	1,045
1993	697
1994	643
1995	1,065
1996	1,833
1997	1,195
1998	863
1999	923
2000	1,572
2001	906
2002	1,437
2003	987
2004	506
2005	987
2006	1,167
2007	746
2008	1,014
2009	1,253
2010	1,322
2011	697
2012	729
2013	513
2014	556
2015	1,254
2016	1,821
2017	516
2018	464
2019	679
2020	326
2021	762
2022	536
2023	1,293
2024	780
2025	994

Download the Data

Data for records on 1998-12-18: 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 20	659
20 to 40	21
40 to 60	7
60 to 80	4
80 to 100	3
100 to 120	1
120 to 140	3