Weather Records on 21 December 2011

653 weather records were set or tied worldwide on 21 December 2011. Highest significance: Coonalpyn, AU.

Key Facts for 21 December 2011

On 21 December 2011, 653 weather records were set or tied at long-record stations worldwide.
315 were record highs and 105 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 14 monthly and 638 daily.
Coonalpyn set a daily record precipitation of 26.0 mm (1.0 in) on 21 December 2011.
Across 158 earlier years (1793 to 2025) the same calendar date averaged 488 records.

Record Map

653 stations

653 station records on 21 December 2011 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 December 2011: highest significance records shown on the map
Station	Country	Type	Value	Significance
Coonalpyn	Australia	Record daily precipitation	26.0 mm (1.0 in)	65 of 100 (Major)
Darrouzett	United States	Record daily precipitation	48.8 mm (1.9 in)	65 of 100 (Major)
Utica	United States	Record snow depth	27.9 cm (11.0 in)	62 of 100 (Major)
Greenethorpe (Iandra)	Australia	Record daily precipitation	43.0 mm (1.7 in)	57 of 100 (Notable)
Roy	United States	Record snow depth	27.9 cm (11.0 in)	55 of 100 (Notable)
Dayton Mcd	United States	Record daily precipitation	27.4 mm (1.1 in)	53 of 100 (Notable)
Donegal 2 NW	United States	Record daily precipitation	57.2 mm (2.3 in)	53 of 100 (Notable)
Barnard	United States	Record snow depth	17.8 cm (7.0 in)	52 of 100 (Notable)
Anderson Wtr Wks	United States	Record daily precipitation	26.2 mm (1.0 in)	51 of 100 (Notable)
Philipsburg Rs	United States	Record daily snowfall	18.8 cm (7.4 in)	51 of 100 (Notable)
Pasamonte	United States	Record snow depth	30.5 cm (12.0 in)	51 of 100 (Notable)
Calhoun 2 N	United States	Record daily precipitation	93.0 mm (3.7 in)	50 of 100 (Notable)
Tonsina	United States	Record daily snowfall	15.2 cm (6.0 in)	50 of 100 (Notable)
Brookville	United States	Record daily precipitation	34.5 mm (1.4 in)	49 of 100 (Notable)
Wheatland 4N	United States	Record daily snowfall	12.7 cm (5.0 in)	49 of 100 (Notable)
Vunisea	Fiji	Record daily precipitation	127.2 mm (5.0 in)	47 of 100 (Notable)
Walsh 1 W	United States	Record snow depth	45.7 cm (18.0 in)	47 of 100 (Notable)
Cimarron	United States	Record snow depth	20.3 cm (8.0 in)	47 of 100 (Notable)
Chiconautla	Mexico	Record high maximum temperature	32.2 C (90.0 F)	45 of 100 (Notable)
Ellis	United States	Record snow depth	30.5 cm (12.0 in)	45 of 100 (Notable)
Healy	United States	Record snow depth	33.0 cm (13.0 in)	44 of 100 (Notable)
Richfield 10 WSW	United States	Record snow depth	25.4 cm (10.0 in)	44 of 100 (Notable)
Cedar Bluff Dam	United States	Record snow depth	22.9 cm (9.0 in)	43 of 100 (Notable)
Perryton	United States	Record daily snowfall	12.7 cm (5.0 in)	43 of 100 (Notable)
Townsend Creek	United States	Record daily precipitation	30.5 mm (1.2 in)	43 of 100 (Notable)
Ordway 4 W	United States	Record snow depth	15.2 cm (6.0 in)	42 of 100 (Notable)
Greensburg	United States	Record daily precipitation	28.4 mm (1.1 in)	42 of 100 (Notable)
Bowling Green 1 W	United States	Record daily precipitation	35.6 mm (1.4 in)	41 of 100 (Notable)
Port of Morgan	United States	Record daily snowfall	10.2 cm (4.0 in)	41 of 100 (Notable)
Turgaj	Kazakhstan	Record low maximum temperature	-22.9 C (-9.2 F)	40 of 100 (Notable)
Poltava	Ukraine	Record high minimum temperature	3.5 C (38.3 F)	40 of 100 (Notable)
Elgin Water	United States	Record high minimum temperature	0.6 C (33.1 F)	40 of 100 (Notable)
Thermopolis	United States	Record daily snowfall	14.0 cm (5.5 in)	40 of 100 (Notable)
Coonabarabran (Westmount)	Australia	Record daily precipitation	53.0 mm (2.1 in)	39 of 100 (Notable)
Petropavlovskij Majak	Russia	Record low maximum temperature	-12.8 C (9.0 F)	39 of 100 (Notable)
Lima	United States	Record daily snowfall	12.7 cm (5.0 in)	39 of 100 (Notable)
Cape May 2 NW	United States	Record high maximum temperature	16.1 C (61.0 F)	39 of 100 (Notable)
Mc Leod 3 E	United States	Record high minimum temperature	-3.3 C (26.1 F)	38 of 100 (Notable)
Meade	United States	Record snow depth	17.8 cm (7.0 in)	37 of 100 (Notable)
Middletown	United States	Record daily precipitation	25.7 mm (1.0 in)	37 of 100 (Notable)
Perryton	United States	Record snow depth	12.7 cm (5.0 in)	37 of 100 (Notable)
Dodge City	United States	Record snow depth	15.2 cm (6.0 in)	37 of 100 (Notable)
Clayton Muni Air Pk	United States	Record snow depth	20.3 cm (8.0 in)	37 of 100 (Notable)
Onslow Airport	Australia	Record high maximum temperature	47.9 C (118.2 F)	36 of 100 (Notable)
Quinter	United States	Record snow depth	17.8 cm (7.0 in)	36 of 100 (Notable)
Brookville	United States	Record snow depth	12.7 cm (5.0 in)	35 of 100 (Notable)
Ness City	United States	Record snow depth	17.8 cm (7.0 in)	35 of 100 (Notable)
Akhty	Russia	Record high minimum temperature	9.9 C (49.8 F)	34 of 100 (Routine)
Bluffton 6N	United States	Record daily precipitation	30.0 mm (1.2 in)	34 of 100 (Routine)
Norris Madison Pwr House	United States	Record daily snowfall	20.3 cm (8.0 in)	34 of 100 (Routine)
Tenzompa	Mexico	Record low maximum temperature	8.9 C (48.0 F)	33 of 100 (Routine)
Waynoka	United States	Record daily snowfall	7.6 cm (3.0 in)	33 of 100 (Routine)
Devils Lake Kdlr	United States	Record high minimum temperature	-3.3 C (26.1 F)	33 of 100 (Routine)
Papunya	Australia	Record daily precipitation	25.2 mm (1.0 in)	32 of 100 (Routine)
Kenilworth	Australia	Record daily precipitation	64.4 mm (2.5 in)	32 of 100 (Routine)
Elwood	United States	Record daily precipitation	26.4 mm (1.0 in)	32 of 100 (Routine)
Cooperstown	United States	Record high minimum temperature	-3.3 C (26.1 F)	32 of 100 (Routine)
Mc Henry 3W	United States	Record high minimum temperature	-3.3 C (26.1 F)	32 of 100 (Routine)
Claflin	United States	Record snow depth	15.2 cm (6.0 in)	31 of 100 (Routine)
Los Otates V	Mexico	Record low maximum temperature	25.6 C (78.1 F)	30 of 100 (Routine)

Counts by Type and Timescale

653 records

Records set or tied on 21 December 2011 by type: Highest daily maximum 120, Lowest daily maximum 56, Highest daily minimum 195, Lowest daily minimum 49, Heaviest daily rainfall 135, Heaviest daily snowfall 43, Deepest snow cover 55.

Records on 21 December 2011 by type
Record type	Records
Highest daily maximum	120
Lowest daily maximum	56
Highest daily minimum	195
Lowest daily minimum	49
Heaviest daily rainfall	135
Heaviest daily snowfall	43
Deepest snow cover	55

Records on 21 December 2011 by timescale: all-time 1, monthly 14, daily 638.

How Much Records Were Beaten By

481 broken records

Margins by which the 481 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 406.0. Ties are not counted.

Top 20 by Significance

21 December 2011

Top 20 records on 21 December 2011 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 December 2011	Coonalpyn, AU	daily rain	26.0 mm (1.0 in)	18.4 mm (0.7 in)	109 years	65 of 100 (Major)
21 December 2011	Darrouzett, US	daily rain	48.8 mm (1.9 in)	37.4 mm (1.5 in)	61 years	65 of 100 (Major)
21 December 2011	Utica, US	daily snow depth	27.9 cm (11.0 in)	17.7 cm (7.0 in)	48 years	62 of 100 (Major)
21 December 2011	Greenethorpe (Iandra), AU	daily rain	43.0 mm (1.7 in)	19.6 mm (0.8 in)	108 years	57 of 100 (Notable)
21 December 2011	Roy, US	daily snow depth	27.9 cm (11.0 in)	15.2 cm (6.0 in)	97 years	55 of 100 (Notable)
21 December 2011	Dayton Mcd, US	daily rain	27.4 mm (1.1 in)	10.9 mm (0.4 in)	105 years	53 of 100 (Notable)
21 December 2011	Donegal 2 NW, US	daily rain	57.2 mm (2.3 in)	28.0 mm (1.1 in)	37 years	53 of 100 (Notable)
21 December 2011	Barnard, US	daily snow depth	17.8 cm (7.0 in)	15.3 cm (6.0 in)	49 years	52 of 100 (Notable)
21 December 2011	Anderson Wtr Wks, US	daily rain	26.2 mm (1.0 in)	12.7 mm (0.5 in)	92 years	51 of 100 (Notable)
21 December 2011	Philipsburg Rs, US	monthly snowfall	18.8 cm (7.4 in)	6.1 cm (2.4 in)	53 years	51 of 100 (Notable)
21 December 2011	Pasamonte, US	daily snow depth	30.5 cm (12.0 in)	20.3 cm (8.0 in)	16 years	51 of 100 (Notable)
21 December 2011	Calhoun 2 N, US	daily rain	93.0 mm (3.7 in)	27.0 mm (1.1 in)	90 years	50 of 100 (Notable)
21 December 2011	Tonsina, US	daily snowfall	15.2 cm (6.0 in)	5.0 cm (2.0 in)	96 years	50 of 100 (Notable)
21 December 2011	Brookville, US	daily rain	34.5 mm (1.4 in)	14.9 mm (0.6 in)	80 years	49 of 100 (Notable)
21 December 2011	Wheatland 4N, US	daily snowfall	12.7 cm (5.0 in)	5.1 cm (2.0 in)	100 years	49 of 100 (Notable)
21 December 2011	Vunisea, FJ	daily rain	127.2 mm (5.0 in)	73.4 mm (2.9 in)	28 years	47 of 100 (Notable)
21 December 2011	Walsh 1 W, US	daily snow depth	45.7 cm (18.0 in)	30.5 cm (12.0 in)	4 years	47 of 100 (Notable)
21 December 2011	Cimarron, US	daily snow depth	20.3 cm (8.0 in)	10.1 cm (4.0 in)	58 years	47 of 100 (Notable)
21 December 2011	Chiconautla, MX	daily high max	32.2 C (90.0 F)	7.2 C (13.0 F)	40 years	45 of 100 (Notable)
21 December 2011	Ellis, US	daily snow depth	30.5 cm (12.0 in)	15.3 cm (6.0 in)	58 years	45 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 2011

Records set or tied on this calendar date in each year from 1793 to 2011. 2011 had 653 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 2011-12-21: 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 100	468
100 to 200	9
200 to 300	2
300 to 400	1
400 to 500	1