Weather Records on 20 December 1950

758 weather records were set or tied worldwide on 20 December 1950. Highest significance: American River, AU.

Key Facts for 20 December 1950

On 20 December 1950, 758 weather records were set or tied at long-record stations worldwide.
130 were record highs and 74 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 11 monthly and 746 daily.
American River set a daily record precipitation of 28.4 mm (1.1 in) on 20 December 1950.
Across 163 earlier years (1793 to 2025) the same calendar date averaged 465 records.

Record Map

758 stations

758 station records on 20 December 1950 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 December 1950: highest significance records shown on the map
Station	Country	Type	Value	Significance
American River	Australia	Record daily precipitation	28.4 mm (1.1 in)	62 of 100 (Major)
Silverton Post Office	Australia	Record daily precipitation	29.2 mm (1.1 in)	57 of 100 (Notable)
Willsons River	Australia	Record daily precipitation	43.4 mm (1.7 in)	55 of 100 (Notable)
Penneshaw	Australia	Record daily precipitation	30.0 mm (1.2 in)	54 of 100 (Notable)
Yunta (Panaramitee)	Australia	Record daily precipitation	31.8 mm (1.3 in)	53 of 100 (Notable)
Nonda Downs Station	Australia	Record daily precipitation	138.2 mm (5.4 in)	52 of 100 (Notable)
Cape Sorell	Australia	Record daily precipitation	36.8 mm (1.4 in)	51 of 100 (Notable)
Umberumberka Reservoir	Australia	Record daily precipitation	29.2 mm (1.1 in)	49 of 100 (Notable)
Chudleigh Park Station	Australia	Record daily precipitation	98.6 mm (3.9 in)	48 of 100 (Notable)
Birdsville Police Station	Australia	Record daily precipitation	41.9 mm (1.6 in)	48 of 100 (Notable)
Kimba (Cortlinye Rocks STN)	Australia	Record daily precipitation	28.2 mm (1.1 in)	44 of 100 (Notable)
Riddells Creek	Australia	Record daily precipitation	33.0 mm (1.3 in)	44 of 100 (Notable)
Alexandria	Australia	Record daily precipitation	70.9 mm (2.8 in)	43 of 100 (Notable)
Lyndhurst Station	Australia	Record daily precipitation	102.9 mm (4.1 in)	40 of 100 (Notable)
Huonville	Australia	Record daily precipitation	31.2 mm (1.2 in)	40 of 100 (Notable)
Merton Weir Farm	Australia	Record daily precipitation	40.6 mm (1.6 in)	40 of 100 (Notable)
Queenstown (Copper Mine)	Australia	Record daily precipitation	49.3 mm (1.9 in)	39 of 100 (Notable)
Marree Comparison	Australia	Record daily precipitation	41.4 mm (1.6 in)	38 of 100 (Notable)
Port Victoria	Australia	Record daily precipitation	29.7 mm (1.2 in)	38 of 100 (Notable)
Second Valley (Spring Grove)	Australia	Record daily precipitation	25.1 mm (1.0 in)	38 of 100 (Notable)
Eddington Station	Australia	Record daily precipitation	72.6 mm (2.9 in)	38 of 100 (Notable)
Yanco Glen (Corona Homestead)	Australia	Record daily precipitation	28.4 mm (1.1 in)	38 of 100 (Notable)
Lovely Banks (Reservoir)	Australia	Record daily precipitation	31.8 mm (1.3 in)	38 of 100 (Notable)
Romsey	Australia	Record daily precipitation	32.3 mm (1.3 in)	38 of 100 (Notable)
Yunta	Australia	Record daily precipitation	36.3 mm (1.4 in)	37 of 100 (Notable)
Mirranatwa (Bowacka)	Australia	Record daily precipitation	29.5 mm (1.2 in)	37 of 100 (Notable)
Deniliquin (Wilkinson St)	Australia	Record low maximum temperature	19.9 C (67.8 F)	36 of 100 (Notable)
Ringarooma (Charles Street)	Australia	Record daily precipitation	34.5 mm (1.4 in)	36 of 100 (Notable)
Hesso	Australia	Record daily precipitation	27.9 mm (1.1 in)	35 of 100 (Notable)
Nelia Post Office	Australia	Record daily precipitation	157.5 mm (6.2 in)	34 of 100 (Routine)
Herberton White St	Australia	Record daily precipitation	68.6 mm (2.7 in)	34 of 100 (Routine)
Broken Hill (Patton Street)	Australia	Record daily precipitation	26.4 mm (1.0 in)	34 of 100 (Routine)
Riva	Italy	Record low minimum temperature	-6.0 C (21.2 F)	34 of 100 (Routine)
Oak Park Station	Australia	Record daily precipitation	79.0 mm (3.1 in)	33 of 100 (Routine)
Richmond Post Office	Australia	Record daily precipitation	92.5 mm (3.6 in)	33 of 100 (Routine)
Coward Springs	Australia	Record daily precipitation	43.2 mm (1.7 in)	32 of 100 (Routine)
Cape Bruny Lighthouse	Australia	Record daily precipitation	26.4 mm (1.0 in)	32 of 100 (Routine)
Healesville (Mount St Leonard)	Australia	Record daily precipitation	60.2 mm (2.4 in)	31 of 100 (Routine)
Morrisons (Ballark)	Australia	Record daily precipitation	31.0 mm (1.2 in)	31 of 100 (Routine)
Riksgransen	Sweden	Record daily precipitation	36.0 mm (1.4 in)	31 of 100 (Routine)
Greenville Wtp	United States	Record snow depth	12.7 cm (5.0 in)	31 of 100 (Routine)
Idracowra	Australia	Record daily precipitation	27.4 mm (1.1 in)	30 of 100 (Routine)
Ormley	Australia	Record daily precipitation	33.0 mm (1.3 in)	30 of 100 (Routine)
Gormanston (Gould Street)	Australia	Record daily precipitation	48.3 mm (1.9 in)	30 of 100 (Routine)
Yankalilla	Australia	Record daily precipitation	26.9 mm (1.1 in)	29 of 100 (Routine)
Myrniong	Australia	Record daily precipitation	40.6 mm (1.6 in)	29 of 100 (Routine)
Lake Margaret Dam	Australia	Record daily precipitation	58.4 mm (2.3 in)	29 of 100 (Routine)
Tg Jiu	Romania	Record daily precipitation	37.7 mm (1.5 in)	29 of 100 (Routine)
Ft Bidwell	United States	Record high maximum temperature	12.8 C (55.0 F)	29 of 100 (Routine)
Maxwelton Post Office	Australia	Record daily precipitation	85.1 mm (3.4 in)	28 of 100 (Routine)
Jindera Public School	Australia	Record daily precipitation	30.0 mm (1.2 in)	28 of 100 (Routine)
Avoca (Railway House)	Australia	Record daily precipitation	35.3 mm (1.4 in)	28 of 100 (Routine)
Glenlyon Station	Australia	Record daily precipitation	76.7 mm (3.0 in)	27 of 100 (Routine)
Trentham (Post Office)	Australia	Record daily precipitation	30.5 mm (1.2 in)	27 of 100 (Routine)
Aurora Water	United States	Record snow depth	22.9 cm (9.0 in)	27 of 100 (Routine)
Valley of Lagoons	Australia	Record daily precipitation	48.8 mm (1.9 in)	26 of 100 (Routine)
Ottawa 4SW	United States	Record snow depth	15.2 cm (6.0 in)	26 of 100 (Routine)
Oakland 1 SE	United States	Record low minimum temperature	-25.0 C (-13.0 F)	26 of 100 (Routine)
Moselle Downs Station	Australia	Record daily precipitation	40.9 mm (1.6 in)	25 of 100 (Routine)
Hedal I Valdres	Norway	Record snow depth	111.0 cm (43.7 in)	25 of 100 (Routine)

Counts by Type and Timescale

758 records

Records set or tied on 20 December 1950 by type: Highest daily maximum 60, Lowest daily maximum 20, Highest daily minimum 70, Lowest daily minimum 54, Heaviest daily rainfall 527, Heaviest daily snowfall 8, Deepest snow cover 19.

Records on 20 December 1950 by type
Record type	Records
Highest daily maximum	60
Lowest daily maximum	20
Highest daily minimum	70
Lowest daily minimum	54
Heaviest daily rainfall	527
Heaviest daily snowfall	8
Deepest snow cover	19

Records on 20 December 1950 by timescale: all-time 1, monthly 11, daily 746.

How Much Records Were Beaten By

664 broken records

Margins by which the 664 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 150.0. Ties are not counted.

Top 20 by Significance

20 December 1950

Top 20 records on 20 December 1950 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 December 1950	American River, AU	daily rain	28.4 mm (1.1 in)	25.6 mm (1.0 in)	61 years	62 of 100 (Major)
20 December 1950	Silverton Post Office, AU	daily rain	29.2 mm (1.1 in)	29.2 mm (1.1 in)	65 years	57 of 100 (Notable)
20 December 1950	Willsons River, AU	daily rain	43.4 mm (1.7 in)	31.2 mm (1.2 in)	41 years	55 of 100 (Notable)
20 December 1950	Penneshaw, AU	daily rain	30.0 mm (1.2 in)	25.4 mm (1.0 in)	36 years	54 of 100 (Notable)
20 December 1950	Yunta (Panaramitee), AU	daily rain	31.8 mm (1.3 in)	31.8 mm (1.3 in)	48 years	53 of 100 (Notable)
20 December 1950	Nonda Downs Station, AU	monthly rain	138.2 mm (5.4 in)	53.1 mm (2.1 in)	7 years	52 of 100 (Notable)
20 December 1950	Cape Sorell, AU	daily rain	36.8 mm (1.4 in)	25.1 mm (1.0 in)	20 years	51 of 100 (Notable)
20 December 1950	Umberumberka Reservoir, AU	daily rain	29.2 mm (1.1 in)	28.9 mm (1.1 in)	28 years	49 of 100 (Notable)
20 December 1950	Chudleigh Park Station, AU	daily rain	98.6 mm (3.9 in)	58.0 mm (2.3 in)	32 years	48 of 100 (Notable)
20 December 1950	Birdsville Police Station, AU	daily rain	41.9 mm (1.6 in)	39.4 mm (1.6 in)	23 years	48 of 100 (Notable)
20 December 1950	Kimba (Cortlinye Rocks STN), AU	daily rain	28.2 mm (1.1 in)	23.4 mm (0.9 in)	28 years	44 of 100 (Notable)
20 December 1950	Riddells Creek, AU	daily rain	33.0 mm (1.3 in)	22.3 mm (0.9 in)	36 years	44 of 100 (Notable)
20 December 1950	Alexandria, AU	daily rain	70.9 mm (2.8 in)	47.3 mm (1.9 in)	0 years	43 of 100 (Notable)
20 December 1950	Lyndhurst Station, AU	daily rain	102.9 mm (4.1 in)	38.1 mm (1.5 in)	40 years	40 of 100 (Notable)
20 December 1950	Huonville, AU	daily rain	31.2 mm (1.2 in)	28.7 mm (1.1 in)	29 years	40 of 100 (Notable)
20 December 1950	Merton Weir Farm, AU	daily rain	40.6 mm (1.6 in)	24.9 mm (1.0 in)	48 years	40 of 100 (Notable)
20 December 1950	Queenstown (Copper Mine), AU	daily rain	49.3 mm (1.9 in)	28.2 mm (1.1 in)	32 years	39 of 100 (Notable)
20 December 1950	Marree Comparison, AU	daily rain	41.4 mm (1.6 in)	28.7 mm (1.1 in)	28 years	38 of 100 (Notable)
20 December 1950	Port Victoria, AU	daily rain	29.7 mm (1.2 in)	26.7 mm (1.1 in)	3 years	38 of 100 (Notable)
20 December 1950	Second Valley (Spring Grove), AU	daily rain	25.1 mm (1.0 in)	14.4 mm (0.6 in)	40 years	38 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 1950

Records set or tied on this calendar date in each year from 1793 to 1950. 1950 had 758 records.

Counts for years before the ledger starts come from the same station rules.

Records on 12-20 in each year
Year	Records
1793	1
1795	1
1804	1
1805	2
1808	1
1815	1
1828	1
1837	1
1846	1
1855	8
1858	1
1860	1
1866	1
1867	1
1868	1
1869	1
1871	2
1874	3
1875	1
1877	2
1878	1
1879	1
1880	1
1881	1
1882	1
1884	4
1885	1
1886	4
1889	4
1890	2
1891	2
1892	1
1894	2
1895	8
1896	1
1897	4
1898	2
1899	1
1900	7
1901	8
1902	14
1903	17
1904	9
1905	5
1906	5
1907	11
1908	5
1909	22
1910	17
1911	24
1912	27
1913	7
1914	43
1915	18
1916	45
1917	33
1918	18
1919	25
1920	22
1921	101
1922	88
1923	215
1924	332
1925	96
1926	163
1927	200
1928	93
1929	256
1930	67
1931	536
1932	170
1933	492
1934	265
1935	152
1936	416
1937	181
1938	240
1939	308
1940	965
1941	633
1942	817
1943	193
1944	340
1945	430
1946	327
1947	385
1948	345
1949	1,141
1950	758
1951	926
1952	394
1953	385
1954	416
1955	726
1956	471
1957	1,354
1958	382
1959	142
1960	354
1961	369
1962	475
1963	875
1964	499
1965	353
1966	555
1967	1,370
1968	482
1969	514
1970	518
1971	441
1972	448
1973	1,184
1974	328
1975	610
1976	382
1977	484
1978	910
1979	600
1980	667
1981	1,681
1982	712
1983	2,995
1984	1,411
1985	1,035
1986	321
1987	1,179
1988	760
1989	1,812
1990	1,885
1991	1,172
1992	1,134
1993	1,266
1994	813
1995	1,128
1996	1,448
1997	651
1998	1,110
1999	938
2000	1,150
2001	523
2002	943
2003	1,315
2004	836
2005	515
2006	1,387
2007	986
2008	1,356
2009	1,502
2010	2,055
2011	846
2012	1,131
2013	584
2014	524
2015	1,238
2016	603
2017	688
2018	592
2019	731
2020	554
2021	442
2022	567
2023	1,242
2024	897
2025	1,166

Download the Data

Data for records on 1950-12-20: 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 2026-10-17 (17 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).

Margin	Records
0 to 20	603
20 to 40	50
40 to 60	5
60 to 80	2
80 to 100	1
100 to 120	1
120 to 140	1
140 to 160	1