Weather Records on 21 December 1997

810 weather records were set or tied worldwide on 21 December 1997. Highest significance: Clovis, US.

Key Facts for 21 December 1997

On 21 December 1997, 810 weather records were set or tied at long-record stations worldwide.
209 were record highs and 77 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 29 monthly and 780 daily.
Clovis set a daily record precipitation of 28.7 mm (1.1 in) on 21 December 1997.
Across 158 earlier years (1793 to 2025) the same calendar date averaged 487 records.

Record Map

810 stations

810 station records on 21 December 1997 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 December 1997: highest significance records shown on the map
Station	Country	Type	Value	Significance
Clovis	United States	Record daily precipitation	28.7 mm (1.1 in)	70 of 100 (Major)
Troy	United States	Record daily precipitation	159.0 mm (6.3 in)	70 of 100 (Major)
McKinney Muni AP	United States	Record daily precipitation	82.3 mm (3.2 in)	68 of 100 (Major)
Burnet	United States	Record daily precipitation	114.8 mm (4.5 in)	66 of 100 (Major)
Aspermont	United States	Record daily precipitation	50.0 mm (2.0 in)	62 of 100 (Major)
Rotan	United States	Record daily precipitation	52.1 mm (2.1 in)	62 of 100 (Major)
Bowie	United States	Record daily precipitation	66.0 mm (2.6 in)	61 of 100 (Major)
McGregor	United States	Record daily precipitation	163.8 mm (6.4 in)	60 of 100 (Major)
Jasper	United States	Record daily precipitation	104.1 mm (4.1 in)	58 of 100 (Notable)
Strasbourg-Entzheim	France	Record daily precipitation	27.2 mm (1.1 in)	55 of 100 (Notable)
Henrietta	United States	Record daily precipitation	60.2 mm (2.4 in)	55 of 100 (Notable)
Clovis	United States	Record daily snowfall	15.2 cm (6.0 in)	54 of 100 (Notable)
Evadale	United States	Record daily precipitation	91.4 mm (3.6 in)	54 of 100 (Notable)
Ft Sumner	United States	Record snow depth	17.8 cm (7.0 in)	52 of 100 (Notable)
Friona	United States	Record daily snowfall	12.7 cm (5.0 in)	52 of 100 (Notable)
Glen Harding	Australia	Record daily precipitation	87.0 mm (3.4 in)	51 of 100 (Notable)
Wuzhou	China	Record daily precipitation	48.6 mm (1.9 in)	51 of 100 (Notable)
Boyd	United States	Record daily precipitation	48.8 mm (1.9 in)	50 of 100 (Notable)
Lajas Substn	Puerto Rico [United States]	Record low maximum temperature	26.1 C (79.0 F)	49 of 100 (Notable)
San Jon	United States	Record daily snowfall	22.9 cm (9.0 in)	49 of 100 (Notable)
Idabel	United States	Record daily precipitation	50.8 mm (2.0 in)	49 of 100 (Notable)
Tuskahoma	United States	Record daily precipitation	80.0 mm (3.1 in)	49 of 100 (Notable)
Turkey	United States	Record daily precipitation	35.6 mm (1.4 in)	49 of 100 (Notable)
Kr. Ravensburg Weingarten	Germany	Record daily precipitation	39.7 mm (1.6 in)	48 of 100 (Notable)
Clovis 13 N	United States	Record daily snowfall	16.3 cm (6.4 in)	48 of 100 (Notable)
Guthrie	United States	Record daily precipitation	53.3 mm (2.1 in)	48 of 100 (Notable)
Clovis	United States	Record snow depth	15.2 cm (6.0 in)	47 of 100 (Notable)
Elk City 4 W	United States	Record daily precipitation	34.8 mm (1.4 in)	46 of 100 (Notable)
Pauls Valley 4 WSW	United States	Record daily precipitation	52.1 mm (2.1 in)	46 of 100 (Notable)
Walters	United States	Record daily precipitation	40.6 mm (1.6 in)	46 of 100 (Notable)
Tulia	United States	Record daily precipitation	27.7 mm (1.1 in)	46 of 100 (Notable)
Pfullendorf	Germany	Record daily precipitation	30.3 mm (1.2 in)	45 of 100 (Notable)
Natchitoches	United States	Record daily precipitation	52.1 mm (2.1 in)	45 of 100 (Notable)
Melrose	United States	Record snow depth	20.3 cm (8.0 in)	45 of 100 (Notable)
San Jon	United States	Record snow depth	20.3 cm (8.0 in)	45 of 100 (Notable)
Umbarger	United States	Record daily snowfall	12.7 cm (5.0 in)	44 of 100 (Notable)
Benedito Novo	Brazil	Record daily precipitation	58.4 mm (2.3 in)	43 of 100 (Notable)
Cushing	United States	Record daily precipitation	40.6 mm (1.6 in)	43 of 100 (Notable)
Dundee 6 NNW	United States	Record daily precipitation	42.2 mm (1.7 in)	43 of 100 (Notable)
Kaufman 3 SE	United States	Record daily precipitation	84.1 mm (3.3 in)	43 of 100 (Notable)
Diamantina Lakes	Australia	Record daily precipitation	26.2 mm (1.0 in)	42 of 100 (Notable)
Friona	United States	Record snow depth	12.7 cm (5.0 in)	42 of 100 (Notable)
Hillsboro	United States	Record daily precipitation	150.1 mm (5.9 in)	42 of 100 (Notable)
Paducah 7E	United States	Record daily precipitation	35.6 mm (1.4 in)	42 of 100 (Notable)
Trenton	United States	Record daily precipitation	66.5 mm (2.6 in)	42 of 100 (Notable)
Vernon	United States	Record daily precipitation	34.3 mm (1.4 in)	42 of 100 (Notable)
Electra	United States	Record daily precipitation	45.7 mm (1.8 in)	41 of 100 (Notable)
Flomot 4 NE	United States	Record daily precipitation	34.5 mm (1.4 in)	41 of 100 (Notable)
Clarendon	United States	Record daily precipitation	31.5 mm (1.2 in)	41 of 100 (Notable)
Cove	United States	Record daily precipitation	91.4 mm (3.6 in)	40 of 100 (Notable)
Duncan	United States	Record daily precipitation	38.1 mm (1.5 in)	40 of 100 (Notable)
Marlow 1 WSW	United States	Record daily precipitation	32.3 mm (1.3 in)	40 of 100 (Notable)
Roosevelt	United States	Record daily precipitation	41.9 mm (1.6 in)	40 of 100 (Notable)
Wichita Mtn Wr	United States	Record daily precipitation	42.7 mm (1.7 in)	40 of 100 (Notable)
Gatesville	United States	Record daily precipitation	124.5 mm (4.9 in)	40 of 100 (Notable)
Greenville Kgvl Radio	United States	Record daily precipitation	87.9 mm (3.5 in)	40 of 100 (Notable)
Koolatah Station	Australia	Record daily precipitation	78.0 mm (3.1 in)	39 of 100 (Notable)
Evelyn State Forest	Australia	Record daily precipitation	79.6 mm (3.1 in)	39 of 100 (Notable)
Malsburg-Marzell-Friedrichshei	Germany	Record daily precipitation	79.4 mm (3.1 in)	39 of 100 (Notable)
Boswell 1 S	United States	Record daily precipitation	80.5 mm (3.2 in)	39 of 100 (Notable)

Counts by Type and Timescale

810 records

Records set or tied on 21 December 1997 by type: Highest daily maximum 120, Lowest daily maximum 40, Highest daily minimum 89, Lowest daily minimum 37, Heaviest daily rainfall 445, Heaviest daily snowfall 40, Deepest snow cover 39.

Records on 21 December 1997 by type
Record type	Records
Highest daily maximum	120
Lowest daily maximum	40
Highest daily minimum	89
Lowest daily minimum	37
Heaviest daily rainfall	445
Heaviest daily snowfall	40
Deepest snow cover	39

Records on 21 December 1997 by timescale: all-time 1, monthly 29, daily 780.

How Much Records Were Beaten By

689 broken records

Margins by which the 689 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 204.0. Ties are not counted.

Top 20 by Significance

21 December 1997

Top 20 records on 21 December 1997 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 December 1997	Clovis, US	daily rain	28.7 mm (1.1 in)	24.1 mm (0.9 in)	74 years	70 of 100 (Major)
21 December 1997	Troy, US	monthly rain	159.0 mm (6.3 in)	57.4 mm (2.3 in)	52 years	70 of 100 (Major)
21 December 1997	McKinney Muni AP, US	daily rain	82.3 mm (3.2 in)	52.3 mm (2.1 in)	76 years	68 of 100 (Major)
21 December 1997	Burnet, US	monthly rain	114.8 mm (4.5 in)	33.5 mm (1.3 in)	62 years	66 of 100 (Major)
21 December 1997	Aspermont, US	daily rain	50.0 mm (2.0 in)	34.8 mm (1.4 in)	67 years	62 of 100 (Major)
21 December 1997	Rotan, US	daily rain	52.1 mm (2.1 in)	32.5 mm (1.3 in)	67 years	62 of 100 (Major)
21 December 1997	Bowie, US	daily rain	66.0 mm (2.6 in)	29.9 mm (1.2 in)	90 years	61 of 100 (Major)
21 December 1997	McGregor, US	monthly rain	163.8 mm (6.4 in)	24.1 mm (0.9 in)	84 years	60 of 100 (Major)
21 December 1997	Jasper, US	daily rain	104.1 mm (4.1 in)	75.7 mm (3.0 in)	27 years	58 of 100 (Notable)
21 December 1997	Strasbourg-Entzheim, FR	daily rain	27.2 mm (1.1 in)	17.3 mm (0.7 in)	28 years	55 of 100 (Notable)
21 December 1997	Henrietta, US	daily rain	60.2 mm (2.4 in)	32.3 mm (1.3 in)	71 years	55 of 100 (Notable)
21 December 1997	Clovis, US	daily snowfall	15.2 cm (6.0 in)	10.6 cm (4.2 in)	74 years	54 of 100 (Notable)
21 December 1997	Evadale, US	daily rain	91.4 mm (3.6 in)	72.9 mm (2.9 in)	34 years	54 of 100 (Notable)
21 December 1997	Ft Sumner, US	daily snow depth	17.8 cm (7.0 in)	7.6 cm (3.0 in)	84 years	52 of 100 (Notable)
21 December 1997	Friona, US	daily snowfall	12.7 cm (5.0 in)	12.2 cm (4.8 in)	67 years	52 of 100 (Notable)
21 December 1997	Glen Harding, AU	daily rain	87.0 mm (3.4 in)	52.7 mm (2.1 in)	47 years	51 of 100 (Notable)
21 December 1997	Wuzhou, CN	daily rain	48.6 mm (1.9 in)	39.7 mm (1.6 in)	24 years	51 of 100 (Notable)
21 December 1997	Boyd, US	daily rain	48.8 mm (1.9 in)	44.7 mm (1.8 in)	30 years	50 of 100 (Notable)
21 December 1997	Lajas Substn, PR	daily low max	26.1 C (79.0 F)	2.8 C (5.0 F)	44 years	49 of 100 (Notable)
21 December 1997	San Jon, US	daily snowfall	22.9 cm (9.0 in)	7.7 cm (3.0 in)	90 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

1793 to 1997

Records set or tied on this calendar date in each year from 1793 to 1997. 1997 had 810 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 1997-12-21: 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 2026-10-14 (14 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 50	645
50 to 100	31
100 to 150	10
150 to 200	2
200 to 250	1