Weather Records on 21 December 2004

675 weather records were set or tied worldwide on 21 December 2004. Highest significance: Knoxville, US.

Key Facts for 21 December 2004

On 21 December 2004, 675 weather records were set or tied at long-record stations worldwide.
208 were record highs and 277 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 16 monthly and 658 daily.
Knoxville set a daily record precipitation of 38.1 mm (1.5 in) on 21 December 2004.
Across 158 earlier years (1793 to 2025) the same calendar date averaged 488 records.

Record Map

675 stations

675 station records on 21 December 2004 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 December 2004: highest significance records shown on the map
Station	Country	Type	Value	Significance
Knoxville	United States	Record daily precipitation	38.1 mm (1.5 in)	75 of 100 (Major)
Zalma 4 E	United States	Record daily precipitation	177.8 mm (7.0 in)	73 of 100 (Major)
Brookport Dam 52	United States	Record snow depth	33.0 cm (13.0 in)	67 of 100 (Major)
Mt Carmel	United States	Record daily snowfall	18.5 cm (7.3 in)	66 of 100 (Major)
El Obeid	Sudan	Record daily precipitation	62.2 mm (2.4 in)	58 of 100 (Notable)
Charlevoix	United States	Record daily snowfall	17.8 cm (7.0 in)	56 of 100 (Notable)
Appleton	United States	Record daily snowfall	14.7 cm (5.8 in)	56 of 100 (Notable)
Butte 5SE	United States	Record daily precipitation	25.4 mm (1.0 in)	53 of 100 (Notable)
Sturgeon Bay Exp Farm	United States	Record daily snowfall	20.3 cm (8.0 in)	52 of 100 (Notable)
Olney 2S	United States	Record daily snowfall	14.0 cm (5.5 in)	51 of 100 (Notable)
Oconto 4 W	United States	Record daily snowfall	25.4 cm (10.0 in)	51 of 100 (Notable)
Brookport Dam 52	United States	Record daily snowfall	33.0 cm (13.0 in)	49 of 100 (Notable)
Moccasin Exp STN	United States	Record daily snowfall	20.3 cm (8.0 in)	49 of 100 (Notable)
Tuckerton 2 NE	United States	Record low maximum temperature	-7.2 C (19.0 F)	46 of 100 (Notable)
Elkhorn	United States	Record low minimum temperature	-18.9 C (-2.0 F)	46 of 100 (Notable)
Austin Waste Wtp Facility	United States	Record daily snowfall	15.2 cm (6.0 in)	45 of 100 (Notable)
Kilauea 1134	United States	Record high minimum temperature	21.7 C (71.1 F)	45 of 100 (Notable)
Tarboro 1 S	United States	Record low maximum temperature	-3.3 C (26.1 F)	44 of 100 (Notable)
Gail	United States	Record daily snowfall	5.1 cm (2.0 in)	44 of 100 (Notable)
Grayling	United States	Record daily snowfall	20.3 cm (8.0 in)	43 of 100 (Notable)
Hawley 1 E	United States	Record low maximum temperature	-13.3 C (8.1 F)	43 of 100 (Notable)
Renovo	United States	Record low maximum temperature	-8.9 C (16.0 F)	42 of 100 (Notable)
Green Forest	United States	Record daily snowfall	6.4 cm (2.5 in)	41 of 100 (Notable)
Sterling	United States	Record high maximum temperature	19.4 C (66.9 F)	41 of 100 (Notable)
Charlevoix	United States	Record low maximum temperature	-7.2 C (19.0 F)	41 of 100 (Notable)
Zalma 4 E	United States	Record daily snowfall	18.8 cm (7.4 in)	41 of 100 (Notable)
Bedford	United States	Record low maximum temperature	-5.0 C (23.0 F)	41 of 100 (Notable)
Kewaunee	United States	Record daily snowfall	12.7 cm (5.0 in)	41 of 100 (Notable)
Ness City	United States	Record high maximum temperature	20.6 C (69.1 F)	40 of 100 (Notable)
Detour Village	United States	Record daily snowfall	22.9 cm (9.0 in)	40 of 100 (Notable)
Ada	United States	Record high maximum temperature	3.9 C (39.0 F)	40 of 100 (Notable)
Kinston 7 SE	United States	Record low maximum temperature	-2.8 C (27.0 F)	40 of 100 (Notable)
Marlinton	United States	Record low maximum temperature	-8.9 C (16.0 F)	39 of 100 (Notable)
Superior	United States	Record high maximum temperature	18.3 C (64.9 F)	38 of 100 (Notable)
Brillion	United States	Record daily snowfall	12.7 cm (5.0 in)	38 of 100 (Notable)
Albion	United States	Record daily snowfall	21.6 cm (8.5 in)	37 of 100 (Notable)
Goodwell Rsch STN	United States	Record high maximum temperature	22.8 C (73.0 F)	35 of 100 (Notable)
Carapan	Mexico	Record low minimum temperature	-1.1 C (30.0 F)	34 of 100 (Routine)
Husnes	Norway	Record daily precipitation	47.8 mm (1.9 in)	34 of 100 (Routine)
Elk City 4 W	United States	Record high maximum temperature	23.9 C (75.0 F)	34 of 100 (Routine)
Kingsport	United States	Record low maximum temperature	-4.4 C (24.1 F)	34 of 100 (Routine)
Wausaukee	United States	Record daily snowfall	18.0 cm (7.1 in)	34 of 100 (Routine)
Flekkefjord	Norway	Record daily precipitation	48.8 mm (1.9 in)	33 of 100 (Routine)
Glenn Dale Bell STN	United States	Record low maximum temperature	-5.0 C (23.0 F)	33 of 100 (Routine)
White Sulphur Springs	United States	Record low maximum temperature	-8.9 C (16.0 F)	33 of 100 (Routine)
Murcia/San Javier	Spain	Record daily precipitation	26.3 mm (1.0 in)	32 of 100 (Routine)
Augusta	United States	Record daily precipitation	50.8 mm (2.0 in)	32 of 100 (Routine)
Cadiz	United States	Record low minimum temperature	-22.2 C (-8.0 F)	32 of 100 (Routine)
Weatherford	United States	Record high maximum temperature	20.6 C (69.1 F)	32 of 100 (Routine)
Sparta	United States	Record daily snowfall	14.0 cm (5.5 in)	32 of 100 (Routine)
Coloso	Puerto Rico [United States]	Record high minimum temperature	21.7 C (71.1 F)	31 of 100 (Routine)
Richfield	United States	Record high maximum temperature	22.2 C (72.0 F)	31 of 100 (Routine)
Smithfield	United States	Record low maximum temperature	-3.3 C (26.1 F)	31 of 100 (Routine)
Taloga	United States	Record high maximum temperature	22.2 C (72.0 F)	31 of 100 (Routine)
Kalaupapa 563	United States	Record high maximum temperature	30.0 C (86.0 F)	31 of 100 (Routine)
Mount Hart Station	Australia	Record daily precipitation	34.0 mm (1.3 in)	30 of 100 (Routine)
Moorefield 1 SSE	United States	Record low maximum temperature	-7.2 C (19.0 F)	30 of 100 (Routine)
Marinette	United States	Record daily snowfall	20.8 cm (8.2 in)	30 of 100 (Routine)
La Huerta	Mexico	Record low minimum temperature	0.0 C (32.0 F)	29 of 100 (Routine)
Santa Maria del Monte	Mexico	Record high minimum temperature	11.7 C (53.1 F)	29 of 100 (Routine)

Counts by Type and Timescale

675 records

Records set or tied on 21 December 2004 by type: Highest daily maximum 141, Lowest daily maximum 164, Highest daily minimum 67, Lowest daily minimum 113, Heaviest daily rainfall 118, Heaviest daily snowfall 62, Deepest snow cover 10.

Records on 21 December 2004 by type
Record type	Records
Highest daily maximum	141
Lowest daily maximum	164
Highest daily minimum	67
Lowest daily minimum	113
Heaviest daily rainfall	118
Heaviest daily snowfall	62
Deepest snow cover	10

Records on 21 December 2004 by timescale: all-time 1, monthly 16, daily 658.

How Much Records Were Beaten By

510 broken records

Margins by which the 510 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

21 December 2004

Top 20 records on 21 December 2004 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 December 2004	Knoxville, US	daily rain	38.1 mm (1.5 in)	28.4 mm (1.1 in)	84 years	75 of 100 (Major)
21 December 2004	Zalma 4 E, US	monthly rain	177.8 mm (7.0 in)	87.6 mm (3.4 in)	57 years	73 of 100 (Major)
21 December 2004	Brookport Dam 52, US	monthly snow depth	33.0 cm (13.0 in)	15.2 cm (6.0 in)	40 years	67 of 100 (Major)
21 December 2004	Mt Carmel, US	daily snowfall	18.5 cm (7.3 in)	10.9 cm (4.3 in)	98 years	66 of 100 (Major)
21 December 2004	El Obeid, SD	daily rain	62.2 mm (2.4 in)	62.2 mm (2.4 in)	47 years	58 of 100 (Notable)
21 December 2004	Charlevoix, US	daily snowfall	17.8 cm (7.0 in)	7.6 cm (3.0 in)	106 years	56 of 100 (Notable)
21 December 2004	Appleton, US	daily snowfall	14.7 cm (5.8 in)	8.3 cm (3.3 in)	90 years	56 of 100 (Notable)
21 December 2004	Butte 5SE, US	daily rain	25.4 mm (1.0 in)	22.6 mm (0.9 in)	24 years	53 of 100 (Notable)
21 December 2004	Sturgeon Bay Exp Farm, US	daily snowfall	20.3 cm (8.0 in)	7.6 cm (3.0 in)	90 years	52 of 100 (Notable)
21 December 2004	Olney 2S, US	daily snowfall	14.0 cm (5.5 in)	6.4 cm (2.5 in)	88 years	51 of 100 (Notable)
21 December 2004	Oconto 4 W, US	daily snowfall	25.4 cm (10.0 in)	15.2 cm (6.0 in)	26 years	51 of 100 (Notable)
21 December 2004	Brookport Dam 52, US	all-time snowfall	33.0 cm (13.0 in)	7.6 cm (3.0 in)	10 years	49 of 100 (Notable)
21 December 2004	Moccasin Exp STN, US	daily snowfall	20.3 cm (8.0 in)	13.9 cm (5.5 in)	38 years	49 of 100 (Notable)
21 December 2004	Tuckerton 2 NE, US	daily low max	-7.2 C (19.0 F)	3.3 C (5.9 F)	103 years	46 of 100 (Notable)
21 December 2004	Elkhorn, US	daily low min	-18.9 C (-2.0 F)	3.3 C (5.9 F)	103 years	46 of 100 (Notable)
21 December 2004	Austin Waste Wtp Facility, US	daily snowfall	15.2 cm (6.0 in)	10.1 cm (4.0 in)	59 years	45 of 100 (Notable)
21 December 2004	Kilauea 1134, US	daily high min	21.7 C (71.1 F)	1.7 C (3.1 F)	87 years	45 of 100 (Notable)
21 December 2004	Tarboro 1 S, US	daily low max	-3.3 C (26.1 F)	2.7 C (4.9 F)	103 years	44 of 100 (Notable)
21 December 2004	Gail, US	daily snowfall	5.1 cm (2.0 in)	3.8 cm (1.5 in)	91 years	44 of 100 (Notable)
21 December 2004	Grayling, US	daily snowfall	20.3 cm (8.0 in)	7.6 cm (3.0 in)	52 years	43 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 2004

Records set or tied on this calendar date in each year from 1793 to 2004. 2004 had 675 records.

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

Records on 12-21 in each year
Year	Records
1793	1
1794	1
1799	1
1801	2
1808	3
1825	1
1828	1
1839	1
1846	1
1850	1
1855	7
1859	1
1860	1
1868	1
1870	1
1871	2
1874	2
1875	3
1876	1
1877	1
1878	1
1879	1
1880	1
1884	1
1886	3
1889	1
1890	4
1893	4
1894	1
1895	5
1896	3
1897	3
1898	1
1900	8
1901	15
1902	5
1903	25
1904	3
1905	15
1906	15
1907	17
1908	19
1909	20
1910	29
1911	36
1912	23
1913	11
1914	107
1915	43
1916	40
1917	18
1918	41
1919	57
1920	30
1921	104
1922	34
1923	323
1924	377
1925	120
1926	178
1927	147
1928	70
1929	156
1930	66
1931	556
1932	150
1933	581
1934	230
1935	398
1936	323
1937	189
1938	145
1939	140
1940	622
1941	651
1942	968
1943	148
1944	762
1945	396
1946	495
1947	700
1948	297
1949	1,281
1950	504
1951	1,061
1952	197
1953	256
1954	444
1955	888
1956	672
1957	846
1958	516
1959	272
1960	585
1961	254
1962	563
1963	1,137
1964	613
1965	247
1966	400
1967	1,923
1968	818
1969	828
1970	547
1971	680
1972	651
1973	1,292
1974	374
1975	548
1976	446
1977	470
1978	517
1979	558
1980	726
1981	1,476
1982	702
1983	3,324
1984	1,012
1985	979
1986	404
1987	775
1988	717
1989	3,203
1990	2,701
1991	1,125
1992	751
1993	967
1994	793
1995	878
1996	1,114
1997	810
1998	1,142
1999	851
2000	944
2001	650
2002	579
2003	1,103
2004	675
2005	606
2006	1,443
2007	946
2008	1,062
2009	1,097
2010	2,039
2011	653
2012	759
2013	1,029
2014	878
2015	1,173
2016	543
2017	459
2018	742
2019	755
2020	965
2021	323
2022	528
2023	1,170
2024	778
2025	1,099

Download the Data

Data for records on 2004-12-21: 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 20	449
20 to 40	33
40 to 60	5
60 to 80	11
80 to 100	6
100 to 120	3
120 to 140	1
140 to 160	2