Weather Records on 21 December 2020

965 weather records were set or tied worldwide on 21 December 2020. Highest significance: Towanda 1 S, US.

Key Facts for 21 December 2020

On 21 December 2020, 965 weather records were set or tied at long-record stations worldwide.
570 were record highs and 48 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 11 monthly and 954 daily.
Towanda 1 S set a daily record snow depth of 58.4 cm (23.0 in) on 21 December 2020.
Across 158 earlier years (1793 to 2025) the same calendar date averaged 486 records.

Record Map

965 stations

965 station records on 21 December 2020 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 December 2020: highest significance records shown on the map
Station	Country	Type	Value	Significance
Towanda 1 S	United States	Record snow depth	58.4 cm (23.0 in)	80 of 100 (Exceptional)
Mathinna (Fingal Road)	Australia	Record daily precipitation	125.0 mm (4.9 in)	75 of 100 (Major)
Somerton (Clermont Park)	Australia	Record daily precipitation	90.6 mm (3.6 in)	66 of 100 (Major)
Kokatha	Australia	Record daily precipitation	51.0 mm (2.0 in)	63 of 100 (Major)
Hermannsburg	Australia	Record daily precipitation	44.8 mm (1.8 in)	58 of 100 (Notable)
Allambi	Australia	Record daily precipitation	75.6 mm (3.0 in)	57 of 100 (Notable)
Lakeport 2	United States	Record snow depth	88.9 cm (35.0 in)	56 of 100 (Notable)
Woodgreen	Australia	Record daily precipitation	85.0 mm (3.3 in)	55 of 100 (Notable)
Cygnet Bay	Australia	Record daily precipitation	191.0 mm (7.5 in)	54 of 100 (Notable)
Bedourie Police Station	Australia	Record daily precipitation	28.0 mm (1.1 in)	53 of 100 (Notable)
Greene	United States	Record snow depth	48.3 cm (19.0 in)	52 of 100 (Notable)
Canton	United States	Record snow depth	61.0 cm (24.0 in)	51 of 100 (Notable)
Koloa Mauka 994	United States	Record daily precipitation	88.9 mm (3.5 in)	51 of 100 (Notable)
Territory Grape Farm	Australia	Record daily precipitation	104.2 mm (4.1 in)	50 of 100 (Notable)
Duri Post Office	Australia	Record daily precipitation	72.2 mm (2.8 in)	50 of 100 (Notable)
Glen Helen	Australia	Record daily precipitation	89.0 mm (3.5 in)	49 of 100 (Notable)
Elmira	United States	Record snow depth	38.1 cm (15.0 in)	49 of 100 (Notable)
Binghamton	United States	Record snow depth	64.0 cm (25.2 in)	49 of 100 (Notable)
Mill Creek Dam	United States	Record daily precipitation	25.4 mm (1.0 in)	48 of 100 (Notable)
Seattle Boeing Fld	United States	Record daily precipitation	45.2 mm (1.8 in)	48 of 100 (Notable)
Cobbadah (Rocky Glen)	Australia	Record daily precipitation	83.0 mm (3.3 in)	47 of 100 (Notable)
Kondoolka	Australia	Record daily precipitation	27.5 mm (1.1 in)	46 of 100 (Notable)
Mahaulepu 941.1	United States	Record daily precipitation	55.9 mm (2.2 in)	46 of 100 (Notable)
Maryvale	Australia	Record daily precipitation	58.0 mm (2.3 in)	45 of 100 (Notable)
Omaha	United States	Record daily snowfall	10.2 cm (4.0 in)	45 of 100 (Notable)
Bullita	Australia	Record daily precipitation	50.0 mm (2.0 in)	43 of 100 (Notable)
Mount Denison	Australia	Record daily precipitation	75.0 mm (3.0 in)	43 of 100 (Notable)
Tambar Springs Post Office	Australia	Record daily precipitation	39.0 mm (1.5 in)	43 of 100 (Notable)
Coraki Post Office	Australia	Record daily precipitation	40.0 mm (1.6 in)	43 of 100 (Notable)
Killarney Post Office	Australia	Record daily precipitation	45.0 mm (1.8 in)	42 of 100 (Notable)
Blaine	United States	Record daily precipitation	42.7 mm (1.7 in)	42 of 100 (Notable)
Mount Hart Station	Australia	Record daily precipitation	91.8 mm (3.6 in)	41 of 100 (Notable)
Napperby	Australia	Record daily precipitation	48.0 mm (1.9 in)	41 of 100 (Notable)
Gloucester (Hiawatha)	Australia	Record daily precipitation	61.6 mm (2.4 in)	41 of 100 (Notable)
Driggs	United States	Record high minimum temperature	2.8 C (37.0 F)	41 of 100 (Notable)
Sequim 2 E	United States	Record daily precipitation	34.0 mm (1.3 in)	41 of 100 (Notable)
Lisse	Netherlands	Record daily precipitation	28.2 mm (1.1 in)	40 of 100 (Notable)
Shoshone 1 WNW	United States	Record high maximum temperature	12.8 C (55.0 F)	40 of 100 (Notable)
Forks 1 E	United States	Record daily precipitation	65.5 mm (2.6 in)	40 of 100 (Notable)
Butte Bert Mooney AP	United States	Record high maximum temperature	10.6 C (51.1 F)	40 of 100 (Notable)
Aileron	Australia	Record daily precipitation	96.0 mm (3.8 in)	39 of 100 (Notable)
Majkop	Russia	Record daily precipitation	25.9 mm (1.0 in)	39 of 100 (Notable)
Udialla	Australia	Record daily precipitation	78.2 mm (3.1 in)	38 of 100 (Notable)
De Grey	Australia	Record daily precipitation	28.4 mm (1.1 in)	38 of 100 (Notable)
Tipperary	Australia	Record daily precipitation	63.0 mm (2.5 in)	38 of 100 (Notable)
Lowan Hills	Australia	Record daily precipitation	51.6 mm (2.0 in)	38 of 100 (Notable)
Mungallala	Australia	Record daily precipitation	36.0 mm (1.4 in)	38 of 100 (Notable)
Hoek_van_Holland_1	Netherlands	Record daily precipitation	27.4 mm (1.1 in)	38 of 100 (Notable)
Palmer 3 ESE	United States	Record high maximum temperature	15.6 C (60.1 F)	38 of 100 (Notable)
Bondurant	United States	Record high minimum temperature	3.3 C (37.9 F)	38 of 100 (Notable)
Kahuku 912	United States	Record high minimum temperature	23.3 C (73.9 F)	38 of 100 (Notable)
Chanute Martin Johnson AP	United States	Record high maximum temperature	18.9 C (66.0 F)	38 of 100 (Notable)
Los Angeles Downtown/Usc	United States	Record high maximum temperature	28.9 C (84.0 F)	38 of 100 (Notable)
Bond Springs Homestead	Australia	Record daily precipitation	44.6 mm (1.8 in)	37 of 100 (Notable)
Kahmoo	Australia	Record daily precipitation	29.8 mm (1.2 in)	37 of 100 (Notable)
Lima	United States	Record high minimum temperature	-1.1 C (30.0 F)	37 of 100 (Notable)
Onida 4 NW	United States	Record high minimum temperature	-0.6 C (30.9 F)	37 of 100 (Notable)
Monroe	United States	Record daily precipitation	53.3 mm (2.1 in)	37 of 100 (Notable)
Seattle Sand Pt WFO	United States	Record daily precipitation	55.6 mm (2.2 in)	37 of 100 (Notable)
Vaughan Springs	Australia	Record daily precipitation	57.0 mm (2.2 in)	36 of 100 (Notable)

Counts by Type and Timescale

965 records

Records set or tied on 21 December 2020 by type: Highest daily maximum 299, Lowest daily maximum 30, Highest daily minimum 271, Lowest daily minimum 18, Heaviest daily rainfall 313, Heaviest daily snowfall 4, Deepest snow cover 30.

Records on 21 December 2020 by type
Record type	Records
Highest daily maximum	299
Lowest daily maximum	30
Highest daily minimum	271
Lowest daily minimum	18
Heaviest daily rainfall	313
Heaviest daily snowfall	4
Deepest snow cover	30

Records on 21 December 2020 by timescale: all-time 0, monthly 11, daily 954.

How Much Records Were Beaten By

825 broken records

Margins by which the 825 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 381.0. Ties are not counted.

Top 20 by Significance

21 December 2020

Top 20 records on 21 December 2020 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 December 2020	Towanda 1 S, US	daily snow depth	58.4 cm (23.0 in)	27.9 cm (11.0 in)	106 years	80 of 100 (Exceptional)
21 December 2020	Mathinna (Fingal Road), AU	monthly rain	125.0 mm (4.9 in)	49.6 mm (2.0 in)	50 years	75 of 100 (Major)
21 December 2020	Somerton (Clermont Park), AU	daily rain	90.6 mm (3.6 in)	69.3 mm (2.7 in)	58 years	66 of 100 (Major)
21 December 2020	Kokatha, AU	daily rain	51.0 mm (2.0 in)	29.4 mm (1.2 in)	76 years	63 of 100 (Major)
21 December 2020	Hermannsburg, AU	daily rain	44.8 mm (1.8 in)	27.3 mm (1.1 in)	74 years	58 of 100 (Notable)
21 December 2020	Allambi, AU	daily rain	75.6 mm (3.0 in)	68.4 mm (2.7 in)	42 years	57 of 100 (Notable)
21 December 2020	Lakeport 2, US	daily snow depth	88.9 cm (35.0 in)	33.0 cm (13.0 in)	69 years	56 of 100 (Notable)
21 December 2020	Woodgreen, AU	daily rain	85.0 mm (3.3 in)	38.0 mm (1.5 in)	70 years	55 of 100 (Notable)
21 December 2020	Cygnet Bay, AU	daily rain	191.0 mm (7.5 in)	136.3 mm (5.4 in)	33 years	54 of 100 (Notable)
21 December 2020	Bedourie Police Station, AU	daily rain	28.0 mm (1.1 in)	22.4 mm (0.9 in)	76 years	53 of 100 (Notable)
21 December 2020	Greene, US	daily snow depth	48.3 cm (19.0 in)	20.4 cm (8.0 in)	75 years	52 of 100 (Notable)
21 December 2020	Canton, US	daily snow depth	61.0 cm (24.0 in)	38.1 cm (15.0 in)	25 years	51 of 100 (Notable)
21 December 2020	Koloa Mauka 994, US	daily rain	88.9 mm (3.5 in)	48.0 mm (1.9 in)	78 years	51 of 100 (Notable)
21 December 2020	Territory Grape Farm, AU	monthly rain	104.2 mm (4.1 in)	36.0 mm (1.4 in)	3 years	50 of 100 (Notable)
21 December 2020	Duri Post Office, AU	daily rain	72.2 mm (2.8 in)	48.4 mm (1.9 in)	33 years	50 of 100 (Notable)
21 December 2020	Glen Helen, AU	monthly rain	89.0 mm (3.5 in)	16.1 mm (0.6 in)	66 years	49 of 100 (Notable)
21 December 2020	Elmira, US	daily snow depth	38.1 cm (15.0 in)	12.7 cm (5.0 in)	76 years	49 of 100 (Notable)
21 December 2020	Binghamton, US	daily snow depth	64.0 cm (25.2 in)	31.0 cm (12.2 in)	25 years	49 of 100 (Notable)
21 December 2020	Mill Creek Dam, US	daily rain	25.4 mm (1.0 in)	14.0 mm (0.6 in)	47 years	48 of 100 (Notable)
21 December 2020	Seattle Boeing Fld, US	daily rain	45.2 mm (1.8 in)	22.3 mm (0.9 in)	56 years	48 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 2020

Records set or tied on this calendar date in each year from 1793 to 2020. 2020 had 965 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 2020-12-21: 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 2026-10-13. Last revised 13 October 2026 (2026-10-13).

Margin	Records
0 to 50	797
50 to 100	13
100 to 150	8
150 to 200	2
200 to 250	1
250 to 300	1
300 to 350	2
350 to 400	1