Weather Records on 21 December 1930

66 weather records were set or tied worldwide on 21 December 1930. Highest significance: Webster City, US.

Key Facts for 21 December 1930

On 21 December 1930, 66 weather records were set or tied at long-record stations worldwide.
7 were record highs and 33 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 3 monthly and 63 daily.
Webster City set a daily record snow depth of 35.6 cm (14.0 in) on 21 December 1930.
Across 158 earlier years (1793 to 2025) the same calendar date averaged 492 records.

Record Map

66 stations

66 station records on 21 December 1930 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 December 1930: highest significance records shown on the map
Station	Country	Type	Value	Significance
Webster City	United States	Record snow depth	35.6 cm (14.0 in)	48 of 100 (Notable)
Oran-Hopital Militaire	Algeria	Record daily precipitation	55.0 mm (2.2 in)	39 of 100 (Notable)
Tashkent	Uzbekistan	Record low minimum temperature	-23.6 C (-10.5 F)	32 of 100 (Routine)
Salisbury	United States	Record snow depth	17.8 cm (7.0 in)	31 of 100 (Routine)
Myklebust I Breim	Norway	Record daily precipitation	35.1 mm (1.4 in)	27 of 100 (Routine)
Hambantota	Sri Lanka	Record low minimum temperature	19.2 C (66.6 F)	26 of 100 (Routine)
Nuwara Eliya	Sri Lanka	Record low minimum temperature	-0.4 C (31.3 F)	26 of 100 (Routine)
Mt Airy 2 W	United States	Record snow depth	12.7 cm (5.0 in)	21 of 100 (Routine)
Haskell	United States	Record daily snowfall	10.2 cm (4.0 in)	21 of 100 (Routine)
Tot-Ma	Russia	Record daily precipitation	10.3 mm (0.4 in)	20 of 100 (Routine)
Skjak	Norway	Record daily precipitation	9.9 mm (0.39 in)	20 of 100 (Routine)
Hypoluxo	United States	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Port Said	Egypt	Record high minimum temperature	19.0 C (66.2 F)	19 of 100 (Routine)
Granite Reef Dam	United States	Record low minimum temperature	-3.9 C (25.0 F)	19 of 100 (Routine)
Plant City	United States	Record daily precipitation	12.7 mm (0.5 in)	19 of 100 (Routine)
Norddal	Norway	Record daily precipitation	18.0 mm (0.7 in)	18 of 100 (Routine)
Salisbury	United States	Record low minimum temperature	-16.7 C (1.9 F)	18 of 100 (Routine)
Scipio	United States	Record low maximum temperature	-7.2 C (19.0 F)	17 of 100 (Routine)
Charlotte Wb City	United States	Record snow depth	2.5 cm (1.0 in)	16 of 100 (Routine)
Mt Airy 2 W	United States	Record low minimum temperature	-16.7 C (1.9 F)	16 of 100 (Routine)
Bisbee	United States	Record low minimum temperature	-5.0 C (23.0 F)	15 of 100 (Routine)
Oracle	United States	Record low minimum temperature	-5.6 C (21.9 F)	15 of 100 (Routine)
Crosbyton	United States	Record daily snowfall	11.4 cm (4.5 in)	15 of 100 (Routine)
Blacksburg	United States	Record low minimum temperature	-18.9 C (-2.0 F)	15 of 100 (Routine)
Burketown Post Office	Australia	Record high minimum temperature	28.1 C (82.6 F)	14 of 100 (Routine)
Gyzylarbat	Turkmenistan	Record low minimum temperature	-16.1 C (3.0 F)	12 of 100 (Routine)
Tucson WFO	United States	Record low minimum temperature	-6.7 C (19.9 F)	12 of 100 (Routine)
Lewisburg 3 N	United States	Record low minimum temperature	-17.8 C (0.0 F)	12 of 100 (Routine)
Dinmore Post Office	Australia	Record daily precipitation	26.7 mm (1.1 in)	11 of 100 (Routine)
Goose Island	Australia	Record daily precipitation	4.8 mm (0.19 in)	11 of 100 (Routine)
Gudauri	Georgia	Record daily precipitation	5.9 mm (0.23 in)	10 of 100 (Routine)
Tombstone	United States	Record low minimum temperature	-6.7 C (19.9 F)	10 of 100 (Routine)
Whitefish Pt	United States	Record daily precipitation	5.8 mm (0.23 in)	10 of 100 (Routine)
Eureka	United States	Record low maximum temperature	-6.7 C (19.9 F)	10 of 100 (Routine)
Bedford 2 SE	United States	Record low maximum temperature	-12.2 C (10.0 F)	10 of 100 (Routine)
Ft Myers Page Fld AP	United States	Record daily precipitation	21.8 mm (0.9 in)	10 of 100 (Routine)
Tampa	United States	Record daily precipitation	36.3 mm (1.4 in)	9 of 100 (Routine)
Marion 2 N	United States	Record daily snowfall	5.8 cm (2.3 in)	8 of 100 (Routine)
Parks Spring Rch	United States	Record low maximum temperature	-4.4 C (24.1 F)	8 of 100 (Routine)
Masset Airport	Canada	Record high minimum temperature	5.6 C (42.1 F)	6 of 100 (Routine)
Redlands	United States	Record low minimum temperature	-1.7 C (28.9 F)	6 of 100 (Routine)
Rocky Mt	United States	Record low minimum temperature	-12.8 C (9.0 F)	6 of 100 (Routine)
Saint Leo	United States	Record low maximum temperature	7.8 C (46.0 F)	5 of 100 (Routine)
Fillmore	United States	Record low maximum temperature	-5.0 C (23.0 F)	5 of 100 (Routine)
Crosbyton	United States	Record snow depth	10.2 cm (4.0 in)	4 of 100 (Routine)
Yerevan	Armenia	Record high minimum temperature	0.6 C (33.1 F)	3 of 100 (Routine)
Stockton 2	United States	Record low minimum temperature	-2.8 C (27.0 F)	3 of 100 (Routine)
Boerne	United States	Record daily precipitation	17.5 mm (0.7 in)	3 of 100 (Routine)
Richfield Radio Ksvc	United States	Record low minimum temperature	-17.8 C (0.0 F)	3 of 100 (Routine)
Bella Coola	Canada	Record high maximum temperature	5.6 C (42.1 F)	2 of 100 (Routine)
Bella Coola	Canada	Record high minimum temperature	3.3 C (37.9 F)	2 of 100 (Routine)
Chatham 2	Canada	Record daily snowfall	10.2 cm (4.0 in)	2 of 100 (Routine)
Westminster	Canada	Record daily precipitation	20.3 mm (0.8 in)	2 of 100 (Routine)
Westminster	Canada	Record daily snowfall	20.3 cm (8.0 in)	2 of 100 (Routine)
Buckeye	United States	Record low minimum temperature	-6.7 C (19.9 F)	2 of 100 (Routine)
Elsinore	United States	Record low minimum temperature	-4.4 C (24.1 F)	2 of 100 (Routine)
Santa Maria	United States	Record low minimum temperature	-2.8 C (27.0 F)	2 of 100 (Routine)
Whitefish Pt	United States	Record daily snowfall	6.4 cm (2.5 in)	2 of 100 (Routine)
Caroleen	United States	Record low minimum temperature	-14.4 C (6.1 F)	2 of 100 (Routine)
Lexington	United States	Record low minimum temperature	-16.1 C (3.0 F)	2 of 100 (Routine)

Counts by Type and Timescale

66 records

Records set or tied on 21 December 1930 by type: Highest daily maximum 1, Lowest daily maximum 7, Highest daily minimum 6, Lowest daily minimum 26, Heaviest daily rainfall 15, Heaviest daily snowfall 6, Deepest snow cover 5.

Records on 21 December 1930 by type
Record type	Records
Highest daily maximum	1
Lowest daily maximum	7
Highest daily minimum	6
Lowest daily minimum	26
Heaviest daily rainfall	15
Heaviest daily snowfall	6
Deepest snow cover	5

Records on 21 December 1930 by timescale: all-time 0, monthly 3, daily 63.

How Much Records Were Beaten By

44 broken records

Margins by which the 44 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 356.0. Ties are not counted.

Top 20 by Significance

21 December 1930

Top 20 records on 21 December 1930 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 December 1930	Webster City, US	daily snow depth	35.6 cm (14.0 in)	35.6 cm (14.0 in)	35 years	48 of 100 (Notable)
21 December 1930	Oran-Hopital Militaire, DZ	daily rain	55.0 mm (2.2 in)	24.5 mm (1.0 in)	27 years	39 of 100 (Notable)
21 December 1930	Tashkent, UZ	daily low min	-23.6 C (-10.5 F)	7.9 C (14.2 F)	48 years	32 of 100 (Routine)
21 December 1930	Salisbury, US	daily snow depth	17.8 cm (7.0 in)	17.8 cm (7.0 in)	36 years	31 of 100 (Routine)
21 December 1930	Myklebust I Breim, NO	daily rain	35.1 mm (1.4 in)	17.6 mm (0.7 in)	25 years	27 of 100 (Routine)
21 December 1930	Hambantota, LK	daily low min	19.2 C (66.6 F)	0.5 C (0.9 F)	54 years	26 of 100 (Routine)
21 December 1930	Nuwara Eliya, LK	daily low min	-0.4 C (31.3 F)	1.5 C (2.7 F)	54 years	26 of 100 (Routine)
21 December 1930	Mt Airy 2 W, US	daily snow depth	12.7 cm (5.0 in)	10.2 cm (4.0 in)	13 years	21 of 100 (Routine)
21 December 1930	Haskell, US	monthly snowfall	10.2 cm (4.0 in)	1.3 cm (0.5 in)	21 years	21 of 100 (Routine)
21 December 1930	Tot-Ma, RU	daily rain	10.3 mm (0.4 in)	3.5 mm (0.14 in)	42 years	20 of 100 (Routine)
21 December 1930	Skjak, NO	daily rain	9.9 mm (0.39 in)	3.4 mm (0.13 in)	16 years	20 of 100 (Routine)
21 December 1930	Hypoluxo, US	daily rain	24.4 mm (1.0 in)	13.5 mm (0.5 in)	20 years	20 of 100 (Routine)
21 December 1930	Port Said, EG	daily high min	19.0 C (66.2 F)	4.0 C (7.2 F)	9 years	19 of 100 (Routine)
21 December 1930	Granite Reef Dam, US	daily low min	-3.9 C (25.0 F)	2.8 C (5.0 F)	32 years	19 of 100 (Routine)
21 December 1930	Plant City, US	daily rain	12.7 mm (0.5 in)	8.4 mm (0.33 in)	33 years	19 of 100 (Routine)
21 December 1930	Norddal, NO	daily rain	18.0 mm (0.7 in)	5.4 mm (0.21 in)	29 years	18 of 100 (Routine)
21 December 1930	Salisbury, US	daily low min	-16.7 C (1.9 F)	3.9 C (7.0 F)	28 years	18 of 100 (Routine)
21 December 1930	Scipio, US	daily low max	-7.2 C (19.0 F)	2.8 C (5.0 F)	32 years	17 of 100 (Routine)
21 December 1930	Charlotte Wb City, US	daily snow depth	2.5 cm (1.0 in)	2.5 cm (1.0 in)	36 years	16 of 100 (Routine)
21 December 1930	Mt Airy 2 W, US	daily low min	-16.7 C (1.9 F)	2.8 C (5.0 F)	28 years	16 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 1930

Records set or tied on this calendar date in each year from 1793 to 1930. 1930 had 66 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 1930-12-21: 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	41
50 to 100	0
100 to 150	1
150 to 200	1
200 to 250	0
250 to 300	0
300 to 350	0
350 to 400	1