Weather Records on 21 December 1948

297 weather records were set or tied worldwide on 21 December 1948. Highest significance: Steamboat Springs, US.

Key Facts for 21 December 1948

On 21 December 1948, 297 weather records were set or tied at long-record stations worldwide.
56 were record highs and 53 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 7 monthly and 289 daily.
Steamboat Springs set a daily record snowfall of 33.0 cm (13.0 in) on 21 December 1948.
Across 158 earlier years (1793 to 2025) the same calendar date averaged 491 records.

Record Map

297 stations

297 station records on 21 December 1948 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 December 1948: highest significance records shown on the map
Station	Country	Type	Value	Significance
Steamboat Springs	United States	Record daily snowfall	33.0 cm (13.0 in)	52 of 100 (Notable)
Currawilla Station	Australia	Record daily precipitation	25.7 mm (1.0 in)	48 of 100 (Notable)
Kellogg	United States	Record snow depth	45.7 cm (18.0 in)	40 of 100 (Notable)
Georgetown Post Office	Australia	Record low minimum temperature	15.0 C (59.0 F)	39 of 100 (Notable)
Kangayam	India	Record daily precipitation	39.4 mm (1.6 in)	39 of 100 (Notable)
Brantford	Canada	Record daily snowfall	11.2 cm (4.4 in)	38 of 100 (Notable)
Sooke Lake	Canada	Record daily snowfall	20.3 cm (8.0 in)	35 of 100 (Notable)
Pierce Rs	United States	Record snow depth	134.6 cm (53.0 in)	34 of 100 (Routine)
Port Dover	Canada	Record daily precipitation	35.6 mm (1.4 in)	33 of 100 (Routine)
Tiruppur	India	Record daily precipitation	43.7 mm (1.7 in)	33 of 100 (Routine)
Hartington	United States	Record snow depth	12.7 cm (5.0 in)	33 of 100 (Routine)
Cheyenne	United States	Record daily snowfall	13.5 cm (5.3 in)	33 of 100 (Routine)
Lyndon	Australia	Record daily precipitation	29.5 mm (1.2 in)	32 of 100 (Routine)
New Westminster	Canada	Record daily snowfall	12.7 cm (5.0 in)	32 of 100 (Routine)
Shawnigan Lake	Canada	Record daily snowfall	27.9 cm (11.0 in)	31 of 100 (Routine)
Tashkent	Uzbekistan	Record low maximum temperature	-13.2 C (8.2 F)	31 of 100 (Routine)
Dindigul	India	Record daily precipitation	27.9 mm (1.1 in)	30 of 100 (Routine)
Longreach Post Office	Australia	Record high minimum temperature	32.2 C (90.0 F)	29 of 100 (Routine)
Steveston	Canada	Record daily snowfall	7.6 cm (3.0 in)	28 of 100 (Routine)
Bajramaly	Turkmenistan	Record low minimum temperature	-21.0 C (-5.8 F)	28 of 100 (Routine)
World Trade Ctr	United States	Record snow depth	33.0 cm (13.0 in)	28 of 100 (Routine)
Nanaimo	Canada	Record daily snowfall	10.2 cm (4.0 in)	27 of 100 (Routine)
Palladam	India	Record daily precipitation	25.4 mm (1.0 in)	27 of 100 (Routine)
Port Dover	Canada	Record high maximum temperature	12.2 C (54.0 F)	26 of 100 (Routine)
Mahackala	Russia	Record low maximum temperature	-9.7 C (14.5 F)	26 of 100 (Routine)
Bear Creek	Canada	Record daily snowfall	20.3 cm (8.0 in)	25 of 100 (Routine)
Tbilisi	Georgia	Record low maximum temperature	-3.5 C (25.7 F)	25 of 100 (Routine)
Buzau	Romania	Record low minimum temperature	-19.3 C (-2.7 F)	25 of 100 (Routine)
Jakutsk	Russia	Record low minimum temperature	-59.4 C (-74.9 F)	25 of 100 (Routine)
Trout Creek 2 W	United States	Record snow depth	71.1 cm (28.0 in)	25 of 100 (Routine)
Itaporanga (Misericordia)	Brazil	Record daily precipitation	85.1 mm (3.4 in)	24 of 100 (Routine)
Athabasca	Canada	Record daily snowfall	10.2 cm (4.0 in)	24 of 100 (Routine)
Tejon Rancho	United States	Record low maximum temperature	2.2 C (36.0 F)	24 of 100 (Routine)
Wallace	United States	Record snow depth	81.3 cm (32.0 in)	24 of 100 (Routine)
Hammond	United States	Record high maximum temperature	27.8 C (82.0 F)	24 of 100 (Routine)
Superior	United States	Record daily snowfall	5.6 cm (2.2 in)	24 of 100 (Routine)
Ganca	Azerbaijan	Record low maximum temperature	-3.9 C (25.0 F)	23 of 100 (Routine)
Alton	Canada	Record daily snowfall	15.2 cm (6.0 in)	23 of 100 (Routine)
Chettikulam	India	Record daily precipitation	37.8 mm (1.5 in)	23 of 100 (Routine)
Dillon 1 E	United States	Record daily snowfall	15.2 cm (6.0 in)	23 of 100 (Routine)
Avery Rs	United States	Record snow depth	83.8 cm (33.0 in)	23 of 100 (Routine)
Saltspring Island	Canada	Record daily snowfall	20.3 cm (8.0 in)	22 of 100 (Routine)
Haugan 1 W	United States	Record snow depth	76.2 cm (30.0 in)	22 of 100 (Routine)
Trenton	United States	Record snow depth	20.3 cm (8.0 in)	22 of 100 (Routine)
Ioco Refinery	Canada	Record daily snowfall	10.2 cm (4.0 in)	21 of 100 (Routine)
Livingston	United States	Record high maximum temperature	22.8 C (73.0 F)	21 of 100 (Routine)
Moanalua 770	United States	Record daily precipitation	54.9 mm (2.2 in)	21 of 100 (Routine)
Grafton	United States	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Kulithalai	India	Record daily precipitation	23.9 mm (0.9 in)	20 of 100 (Routine)
Williambury	Australia	Record daily precipitation	17.0 mm (0.7 in)	20 of 100 (Routine)
Sulur	India	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Musiri	India	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
University Exp STN	United States	Record daily precipitation	6.1 mm (0.24 in)	20 of 100 (Routine)
Mangaroon	Australia	Record daily precipitation	5.6 mm (0.22 in)	20 of 100 (Routine)
Vaikom	India	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Coimbatore	India	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Hamersley	Australia	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Brantford	Canada	Record daily precipitation	11.2 mm (0.4 in)	20 of 100 (Routine)
Meeker	United States	Record daily precipitation	10.7 mm (0.4 in)	20 of 100 (Routine)
Cheyenne	United States	Record daily precipitation	7.6 mm (0.30 in)	20 of 100 (Routine)

Counts by Type and Timescale

297 records

Records set or tied on 21 December 1948 by type: Highest daily maximum 42, Lowest daily maximum 23, Highest daily minimum 14, Lowest daily minimum 30, Heaviest daily rainfall 126, Heaviest daily snowfall 39, Deepest snow cover 23.

Records on 21 December 1948 by type
Record type	Records
Highest daily maximum	42
Lowest daily maximum	23
Highest daily minimum	14
Lowest daily minimum	30
Heaviest daily rainfall	126
Heaviest daily snowfall	39
Deepest snow cover	23

Records on 21 December 1948 by timescale: all-time 1, monthly 7, daily 289.

How Much Records Were Beaten By

249 broken records

Margins by which the 249 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 508.0. Ties are not counted.

Top 20 by Significance

21 December 1948

Top 20 records on 21 December 1948 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 December 1948	Steamboat Springs, US	daily snowfall	33.0 cm (13.0 in)	19.0 cm (7.5 in)	38 years	52 of 100 (Notable)
21 December 1948	Currawilla Station, AU	daily rain	25.7 mm (1.0 in)	25.7 mm (1.0 in)	59 years	48 of 100 (Notable)
21 December 1948	Kellogg, US	daily snow depth	45.7 cm (18.0 in)	27.9 cm (11.0 in)	42 years	40 of 100 (Notable)
21 December 1948	Georgetown Post Office, AU	daily low min	15.0 C (59.0 F)	4.4 C (7.9 F)	46 years	39 of 100 (Notable)
21 December 1948	Kangayam, IN	daily rain	39.4 mm (1.6 in)	34.3 mm (1.4 in)	42 years	39 of 100 (Notable)
21 December 1948	Brantford, CA	daily snowfall	11.2 cm (4.4 in)	6.1 cm (2.4 in)	60 years	38 of 100 (Notable)
21 December 1948	Sooke Lake, CA	daily snowfall	20.3 cm (8.0 in)	15.2 cm (6.0 in)	31 years	35 of 100 (Notable)
21 December 1948	Pierce Rs, US	daily snow depth	134.6 cm (53.0 in)	50.8 cm (20.0 in)	32 years	34 of 100 (Routine)
21 December 1948	Port Dover, CA	daily rain	35.6 mm (1.4 in)	9.4 mm (0.37 in)	43 years	33 of 100 (Routine)
21 December 1948	Tiruppur, IN	daily rain	43.7 mm (1.7 in)	42.2 mm (1.7 in)	17 years	33 of 100 (Routine)
21 December 1948	Hartington, US	daily snow depth	12.7 cm (5.0 in)	12.7 cm (5.0 in)	54 years	33 of 100 (Routine)
21 December 1948	Cheyenne, US	daily snowfall	13.5 cm (5.3 in)	7.9 cm (3.1 in)	28 years	33 of 100 (Routine)
21 December 1948	Lyndon, AU	monthly rain	29.5 mm (1.2 in)	8.2 mm (0.32 in)	15 years	32 of 100 (Routine)
21 December 1948	New Westminster, CA	daily snowfall	12.7 cm (5.0 in)	10.2 cm (4.0 in)	32 years	32 of 100 (Routine)
21 December 1948	Shawnigan Lake, CA	daily snowfall	27.9 cm (11.0 in)	17.7 cm (7.0 in)	31 years	31 of 100 (Routine)
21 December 1948	Tashkent, UZ	daily low max	-13.2 C (8.2 F)	3.6 C (6.5 F)	66 years	31 of 100 (Routine)
21 December 1948	Dindigul, IN	daily rain	27.9 mm (1.1 in)	20.5 mm (0.8 in)	45 years	30 of 100 (Routine)
21 December 1948	Longreach Post Office, AU	daily high min	32.2 C (90.0 F)	4.1 C (7.4 F)	43 years	29 of 100 (Routine)
21 December 1948	Steveston, CA	daily snowfall	7.6 cm (3.0 in)	6.3 cm (2.5 in)	27 years	28 of 100 (Routine)
21 December 1948	Bajramaly, TM	daily low min	-21.0 C (-5.8 F)	5.9 C (10.6 F)	38 years	28 of 100 (Routine)

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 1948

Records set or tied on this calendar date in each year from 1793 to 1948. 1948 had 297 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 1948-12-21: 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 100	231
100 to 200	14
200 to 300	2
300 to 400	1
400 to 500	0
500 to 600	1