Weather Records on 21 December 1951

1,061 weather records were set or tied worldwide on 21 December 1951. Highest significance: Ottawa 4SW, US.

Key Facts for 21 December 1951

On 21 December 1951, 1,061 weather records were set or tied at long-record stations worldwide.
125 were record highs and 373 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 35 monthly and 1,023 daily.
Ottawa 4SW set an all-time record snow depth of 38.1 cm (15.0 in) on 21 December 1951.
Across 158 earlier years (1793 to 2025) the same calendar date averaged 486 records.

Record Map

1,061 stations

1,061 station records on 21 December 1951 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 December 1951: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ottawa 4SW	United States	Record snow depth	38.1 cm (15.0 in)	58 of 100 (Notable)
Fairfax	United States	Record snow depth	38.1 cm (15.0 in)	57 of 100 (Notable)
Moscow U of I	United States	Record daily snowfall	27.9 cm (11.0 in)	56 of 100 (Notable)
Cornwall	United States	Record daily precipitation	53.8 mm (2.1 in)	53 of 100 (Notable)
Nicolet	Canada	Record daily snowfall	38.1 cm (15.0 in)	50 of 100 (Notable)
Cap Chat	Canada	Record daily snowfall	33.0 cm (13.0 in)	49 of 100 (Notable)
Farrell Sharon	United States	Record daily precipitation	38.1 mm (1.5 in)	49 of 100 (Notable)
Spokane Intl AP	United States	Record snow depth	58.4 cm (23.0 in)	49 of 100 (Notable)
Cap Chat	Canada	Record daily precipitation	33.0 mm (1.3 in)	48 of 100 (Notable)
Bryson City 2	United States	Record daily precipitation	66.5 mm (2.6 in)	47 of 100 (Notable)
Pelzer	United States	Record daily precipitation	88.6 mm (3.5 in)	47 of 100 (Notable)
Norcross	United States	Record daily precipitation	90.7 mm (3.6 in)	46 of 100 (Notable)
Lake Providence	United States	Record daily precipitation	68.8 mm (2.7 in)	46 of 100 (Notable)
Saint Maries	United States	Record daily snowfall	27.9 cm (11.0 in)	45 of 100 (Notable)
Newaygo Hardy Dam	United States	Record daily snowfall	24.9 cm (9.8 in)	45 of 100 (Notable)
Catawba	United States	Record daily precipitation	57.2 mm (2.3 in)	45 of 100 (Notable)
Catawba Hospital	United States	Record daily precipitation	50.8 mm (2.0 in)	45 of 100 (Notable)
Galva	United States	Record snow depth	38.1 cm (15.0 in)	44 of 100 (Notable)
Marengo	United States	Record snow depth	33.0 cm (13.0 in)	44 of 100 (Notable)
Kings Mills	United States	Record daily precipitation	39.4 mm (1.6 in)	44 of 100 (Notable)
Tanana AP	United States	Record daily snowfall	14.2 cm (5.6 in)	44 of 100 (Notable)
Itaete (Iguacu)	Brazil	Record daily precipitation	95.0 mm (3.7 in)	43 of 100 (Notable)
Toccoa	United States	Record daily precipitation	91.4 mm (3.6 in)	43 of 100 (Notable)
Vineland	United States	Record daily precipitation	61.0 mm (2.4 in)	43 of 100 (Notable)
Davenport L&D 15	United States	Record snow depth	27.9 cm (11.0 in)	43 of 100 (Notable)
Galena	United States	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
Parksville	United States	Record daily precipitation	52.1 mm (2.1 in)	42 of 100 (Notable)
Tallapoosa 2 N	United States	Record daily precipitation	78.7 mm (3.1 in)	41 of 100 (Notable)
Tuscaloosa Oliver Dam	United States	Record daily precipitation	56.6 mm (2.2 in)	40 of 100 (Notable)
Snow Hill 4 N	United States	Record daily precipitation	37.3 mm (1.5 in)	40 of 100 (Notable)
Linesville 1 S	United States	Record daily precipitation	26.4 mm (1.0 in)	40 of 100 (Notable)
E Stroudsburg	United States	Record daily precipitation	47.0 mm (1.9 in)	40 of 100 (Notable)
Hopewell	United States	Record daily precipitation	39.9 mm (1.6 in)	40 of 100 (Notable)
Gainesville	United States	Record daily precipitation	69.3 mm (2.7 in)	39 of 100 (Notable)
Greenville 2 NNE	United States	Record daily snowfall	15.2 cm (6.0 in)	39 of 100 (Notable)
Kirksville	United States	Record snow depth	17.8 cm (7.0 in)	39 of 100 (Notable)
Lock Haven	United States	Record snow depth	33.0 cm (13.0 in)	39 of 100 (Notable)
Donnacona	Canada	Record daily snowfall	20.3 cm (8.0 in)	38 of 100 (Notable)
Canton	United States	Record daily precipitation	69.1 mm (2.7 in)	38 of 100 (Notable)
Morrison	United States	Record snow depth	53.3 cm (21.0 in)	38 of 100 (Notable)
Cedar Rapids #1	United States	Record snow depth	27.9 cm (11.0 in)	38 of 100 (Notable)
Owosso Wwtp	United States	Record daily snowfall	15.2 cm (6.0 in)	38 of 100 (Notable)
Faulkton	United States	Record snow depth	35.6 cm (14.0 in)	38 of 100 (Notable)
Nicolet	Canada	Record daily precipitation	38.1 mm (1.5 in)	37 of 100 (Notable)
Dahlonega 4WSW	United States	Record daily precipitation	83.8 mm (3.3 in)	37 of 100 (Notable)
Grand Rapids Wb City	United States	Record daily snowfall	22.4 cm (8.8 in)	37 of 100 (Notable)
Columbus Ohio St UNIV	United States	Record daily precipitation	31.2 mm (1.2 in)	37 of 100 (Notable)
Goodwater	United States	Record daily precipitation	72.1 mm (2.8 in)	36 of 100 (Notable)
Potlatch 3 NNE	United States	Record daily snowfall	27.9 cm (11.0 in)	36 of 100 (Notable)
Holland Wtp	United States	Record daily snowfall	15.2 cm (6.0 in)	36 of 100 (Notable)
Aberdeen	United States	Record daily precipitation	57.9 mm (2.3 in)	36 of 100 (Notable)
Bateman Rch	United States	Record snow depth	124.5 cm (49.0 in)	36 of 100 (Notable)
Durham	United States	Record daily precipitation	37.3 mm (1.5 in)	36 of 100 (Notable)
Murphy 4ESE	United States	Record daily precipitation	55.6 mm (2.2 in)	36 of 100 (Notable)
Cottonwood 2 E	United States	Record snow depth	17.8 cm (7.0 in)	36 of 100 (Notable)
Columbia 2SSE	United States	Record daily precipitation	62.2 mm (2.4 in)	36 of 100 (Notable)
Chilliwack	Canada	Record daily snowfall	27.9 cm (11.0 in)	35 of 100 (Notable)
McAdam	Canada	Record daily precipitation	38.6 mm (1.5 in)	35 of 100 (Notable)
Springerville	United States	Record snow depth	10.2 cm (4.0 in)	35 of 100 (Notable)
Carlton Brg	United States	Record daily precipitation	65.0 mm (2.6 in)	35 of 100 (Notable)

Counts by Type and Timescale

1,061 records

Records set or tied on 21 December 1951 by type: Highest daily maximum 80, Lowest daily maximum 150, Highest daily minimum 45, Lowest daily minimum 223, Heaviest daily rainfall 319, Heaviest daily snowfall 163, Deepest snow cover 81.

Records on 21 December 1951 by type
Record type	Records
Highest daily maximum	80
Lowest daily maximum	150
Highest daily minimum	45
Lowest daily minimum	223
Heaviest daily rainfall	319
Heaviest daily snowfall	163
Deepest snow cover	81

Records on 21 December 1951 by timescale: all-time 3, monthly 35, daily 1,023.

How Much Records Were Beaten By

886 broken records

Margins by which the 886 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 483.0. Ties are not counted.

Top 20 by Significance

21 December 1951

Top 20 records on 21 December 1951 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 December 1951	Ottawa 4SW, US	all-time snow depth	38.1 cm (15.0 in)	7.6 cm (3.0 in)	55 years	58 of 100 (Notable)
21 December 1951	Fairfax, US	daily snow depth	38.1 cm (15.0 in)	25.4 cm (10.0 in)	40 years	57 of 100 (Notable)
21 December 1951	Moscow U of I, US	daily snowfall	27.9 cm (11.0 in)	19.0 cm (7.5 in)	38 years	56 of 100 (Notable)
21 December 1951	Cornwall, US	daily rain	53.8 mm (2.1 in)	41.1 mm (1.6 in)	25 years	53 of 100 (Notable)
21 December 1951	Nicolet, CA	daily snowfall	38.1 cm (15.0 in)	25.4 cm (10.0 in)	25 years	50 of 100 (Notable)
21 December 1951	Cap Chat, CA	daily snowfall	33.0 cm (13.0 in)	20.3 cm (8.0 in)	17 years	49 of 100 (Notable)
21 December 1951	Farrell Sharon, US	daily rain	38.1 mm (1.5 in)	22.9 mm (0.9 in)	36 years	49 of 100 (Notable)
21 December 1951	Spokane Intl AP, US	monthly snow depth	58.4 cm (23.0 in)	20.3 cm (8.0 in)	29 years	49 of 100 (Notable)
21 December 1951	Cap Chat, CA	daily rain	33.0 mm (1.3 in)	20.3 mm (0.8 in)	17 years	48 of 100 (Notable)
21 December 1951	Bryson City 2, US	daily rain	66.5 mm (2.6 in)	32.2 mm (1.3 in)	53 years	47 of 100 (Notable)
21 December 1951	Pelzer, US	daily rain	88.6 mm (3.5 in)	47.5 mm (1.9 in)	45 years	47 of 100 (Notable)
21 December 1951	Norcross, US	daily rain	90.7 mm (3.6 in)	55.6 mm (2.2 in)	32 years	46 of 100 (Notable)
21 December 1951	Lake Providence, US	daily rain	68.8 mm (2.7 in)	67.0 mm (2.6 in)	4 years	46 of 100 (Notable)
21 December 1951	Saint Maries, US	daily snowfall	27.9 cm (11.0 in)	21.5 cm (8.5 in)	2 years	45 of 100 (Notable)
21 December 1951	Newaygo Hardy Dam, US	monthly snowfall	24.9 cm (9.8 in)	8.4 cm (3.3 in)	14 years	45 of 100 (Notable)
21 December 1951	Catawba, US	daily rain	57.2 mm (2.3 in)	35.9 mm (1.4 in)	40 years	45 of 100 (Notable)
21 December 1951	Catawba Hospital, US	daily rain	50.8 mm (2.0 in)	44.4 mm (1.7 in)	4 years	45 of 100 (Notable)
21 December 1951	Galva, US	monthly snow depth	38.1 cm (15.0 in)	7.6 cm (3.0 in)	41 years	44 of 100 (Notable)
21 December 1951	Marengo, US	daily snow depth	33.0 cm (13.0 in)	17.8 cm (7.0 in)	16 years	44 of 100 (Notable)
21 December 1951	Kings Mills, US	daily rain	39.4 mm (1.6 in)	25.7 mm (1.0 in)	36 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

1793 to 1951

Records set or tied on this calendar date in each year from 1793 to 1951. 1951 had 1,061 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	1,100

Download the Data

Data for records on 1951-12-21: 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Histogram of margins by which records were beaten on 21 December 1951
Margin	Records
0 to 100	850
100 to 200	29
200 to 300	6
300 to 400	0
400 to 500	1