Weather Records on 20 December 1949

1,141 weather records were set or tied worldwide on 20 December 1949. Highest significance: Brantford, CA.

Key Facts for 20 December 1949

On 20 December 1949, 1,141 weather records were set or tied at long-record stations worldwide.
560 were record highs and 164 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 16 monthly and 1,124 daily.
Brantford set a daily record precipitation of 49.5 mm (1.9 in) on 20 December 1949.
Across 163 earlier years (1793 to 2025) the same calendar date averaged 463 records.

Record Map

1,141 stations

1,141 station records on 20 December 1949 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 December 1949: highest significance records shown on the map
Station	Country	Type	Value	Significance
Brantford	Canada	Record daily precipitation	49.5 mm (1.9 in)	60 of 100 (Major)
Hamilton	Canada	Record daily precipitation	40.6 mm (1.6 in)	56 of 100 (Notable)
St Catharines	Canada	Record daily precipitation	36.8 mm (1.4 in)	51 of 100 (Notable)
Ayrshire Downs	Australia	Record daily precipitation	52.8 mm (2.1 in)	50 of 100 (Notable)
Woodstock	Canada	Record daily precipitation	36.8 mm (1.4 in)	50 of 100 (Notable)
East Lansing Exp Farm	United States	Record daily precipitation	26.7 mm (1.1 in)	50 of 100 (Notable)
Pontiac Wwtp	United States	Record daily precipitation	27.9 mm (1.1 in)	50 of 100 (Notable)
Lerida	Australia	Record daily precipitation	76.2 mm (3.0 in)	49 of 100 (Notable)
Cork Station	Australia	Record daily precipitation	71.1 mm (2.8 in)	47 of 100 (Notable)
Vergemont	Australia	Record daily precipitation	64.0 mm (2.5 in)	47 of 100 (Notable)
Morstone Station	Australia	Record daily precipitation	69.9 mm (2.8 in)	46 of 100 (Notable)
Evesham Station	Australia	Record daily precipitation	72.4 mm (2.9 in)	45 of 100 (Notable)
Mudgee (George Street)	Australia	Record daily precipitation	50.8 mm (2.0 in)	44 of 100 (Notable)
Truchas	United States	Record daily snowfall	38.1 cm (15.0 in)	43 of 100 (Notable)
Dixon Wwtp	United States	Record daily precipitation	26.4 mm (1.0 in)	42 of 100 (Notable)
Strathdarr	Australia	Record daily precipitation	47.0 mm (1.9 in)	41 of 100 (Notable)
Murringo (Windermere)	Australia	Record daily precipitation	40.9 mm (1.6 in)	40 of 100 (Notable)
St Thomas	Canada	Record daily precipitation	26.9 mm (1.1 in)	40 of 100 (Notable)
Russellville	United States	Record high minimum temperature	15.6 C (60.1 F)	39 of 100 (Notable)
Huehue 92.1	United States	Record daily precipitation	86.4 mm (3.4 in)	39 of 100 (Notable)
Hickeys Creek Post Office	Australia	Record daily precipitation	59.9 mm (2.4 in)	38 of 100 (Notable)
Mill Bay	Canada	Record daily precipitation	81.3 mm (3.2 in)	38 of 100 (Notable)
Nicosia	Cyprus	Record daily precipitation	73.2 mm (2.9 in)	38 of 100 (Notable)
Tyler Pounds Fld	United States	Record high minimum temperature	18.9 C (66.0 F)	38 of 100 (Notable)
Winton Post Office	Australia	Record daily precipitation	102.6 mm (4.0 in)	37 of 100 (Notable)
Pialaway Downs	Australia	Record daily precipitation	62.2 mm (2.4 in)	36 of 100 (Notable)
West Wyalong Post Office	Australia	Record daily precipitation	35.6 mm (1.4 in)	36 of 100 (Notable)
Tuena	Australia	Record daily precipitation	52.8 mm (2.1 in)	36 of 100 (Notable)
Tiskilwa 2 SE	United States	Record daily precipitation	25.4 mm (1.0 in)	36 of 100 (Notable)
Brunette Downs	Australia	Record daily precipitation	48.3 mm (1.9 in)	35 of 100 (Notable)
Maneroo	Australia	Record daily precipitation	34.8 mm (1.4 in)	35 of 100 (Notable)
Rylstone (Ilford Rd)	Australia	Record daily precipitation	45.2 mm (1.8 in)	35 of 100 (Notable)
Lindsay	Canada	Record daily precipitation	40.6 mm (1.6 in)	35 of 100 (Notable)
Isis Downs	Australia	Record daily precipitation	44.5 mm (1.8 in)	34 of 100 (Routine)
Lucknow Station	Australia	Record daily precipitation	43.2 mm (1.7 in)	34 of 100 (Routine)
Mount Ryde	Australia	Record daily precipitation	36.3 mm (1.4 in)	34 of 100 (Routine)
Wollong	Australia	Record daily precipitation	50.3 mm (2.0 in)	34 of 100 (Routine)
Adelong Post Office	Australia	Record daily precipitation	28.2 mm (1.1 in)	34 of 100 (Routine)
Kynuna	Australia	Record daily precipitation	52.1 mm (2.1 in)	33 of 100 (Routine)
Yalgogrin North (Roloma)	Australia	Record daily precipitation	29.5 mm (1.2 in)	33 of 100 (Routine)
Bodangora Post Office	Australia	Record daily precipitation	44.5 mm (1.8 in)	33 of 100 (Routine)
Narra Allen	Australia	Record daily precipitation	37.1 mm (1.5 in)	33 of 100 (Routine)
Weissenburg	Germany	Record high maximum temperature	12.1 C (53.8 F)	33 of 100 (Routine)
Barcaldine Post Office	Australia	Record daily precipitation	47.5 mm (1.9 in)	32 of 100 (Routine)
Belmont	Australia	Record daily precipitation	75.4 mm (3.0 in)	32 of 100 (Routine)
Young Post Office	Australia	Record daily precipitation	33.0 mm (1.3 in)	32 of 100 (Routine)
Boggabri (Kanownda)	Australia	Record daily precipitation	36.8 mm (1.4 in)	31 of 100 (Routine)
Boorowa Post Office	Australia	Record daily precipitation	37.6 mm (1.5 in)	31 of 100 (Routine)
Saltspring Island	Canada	Record daily snowfall	7.6 cm (3.0 in)	31 of 100 (Routine)
Gainesville	United States	Record high minimum temperature	16.1 C (61.0 F)	31 of 100 (Routine)
Bowen Downs	Australia	Record daily precipitation	50.8 mm (2.0 in)	30 of 100 (Routine)
Kings Tablelands	Australia	Record daily precipitation	38.4 mm (1.5 in)	30 of 100 (Routine)
Alpine	United States	Record snow depth	30.5 cm (12.0 in)	30 of 100 (Routine)
Picton Council Depot	Australia	Record daily precipitation	42.2 mm (1.7 in)	29 of 100 (Routine)
Wattle Vale	Australia	Record daily precipitation	35.1 mm (1.4 in)	29 of 100 (Routine)
Paulo Afonso	Brazil	Record daily precipitation	47.0 mm (1.9 in)	29 of 100 (Routine)
Woodstock	Canada	Record high maximum temperature	10.0 C (50.0 F)	29 of 100 (Routine)
Winnibigoshish Dam	United States	Record daily snowfall	8.9 cm (3.5 in)	29 of 100 (Routine)
Midland 4 ENE	United States	Record high minimum temperature	10.0 C (50.0 F)	29 of 100 (Routine)
Barkly Downs	Australia	Record daily precipitation	57.2 mm (2.3 in)	28 of 100 (Routine)

Counts by Type and Timescale

1,141 records

Records set or tied on 20 December 1949 by type: Highest daily maximum 327, Lowest daily maximum 67, Highest daily minimum 233, Lowest daily minimum 97, Heaviest daily rainfall 354, Heaviest daily snowfall 50, Deepest snow cover 13.

Records on 20 December 1949 by type
Record type	Records
Highest daily maximum	327
Lowest daily maximum	67
Highest daily minimum	233
Lowest daily minimum	97
Heaviest daily rainfall	354
Heaviest daily snowfall	50
Deepest snow cover	13

Records on 20 December 1949 by timescale: all-time 1, monthly 16, daily 1,124.

How Much Records Were Beaten By

970 broken records

Margins by which the 970 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 305.0. Ties are not counted.

Top 20 by Significance

20 December 1949

Top 20 records on 20 December 1949 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 December 1949	Brantford, CA	daily rain	49.5 mm (1.9 in)	39.3 mm (1.5 in)	44 years	60 of 100 (Major)
20 December 1949	Hamilton, CA	daily rain	40.6 mm (1.6 in)	21.5 mm (0.8 in)	66 years	56 of 100 (Notable)
20 December 1949	St Catharines, CA	daily rain	36.8 mm (1.4 in)	22.8 mm (0.9 in)	20 years	51 of 100 (Notable)
20 December 1949	Ayrshire Downs, AU	daily rain	52.8 mm (2.1 in)	38.3 mm (1.5 in)	48 years	50 of 100 (Notable)
20 December 1949	Woodstock, CA	daily rain	36.8 mm (1.4 in)	24.1 mm (0.9 in)	16 years	50 of 100 (Notable)
20 December 1949	East Lansing Exp Farm, US	daily rain	26.7 mm (1.1 in)	20.9 mm (0.8 in)	20 years	50 of 100 (Notable)
20 December 1949	Pontiac Wwtp, US	daily rain	27.9 mm (1.1 in)	20.5 mm (0.8 in)	53 years	50 of 100 (Notable)
20 December 1949	Lerida, AU	daily rain	76.2 mm (3.0 in)	69.8 mm (2.7 in)	23 years	49 of 100 (Notable)
20 December 1949	Cork Station, AU	daily rain	71.1 mm (2.8 in)	59.4 mm (2.3 in)	27 years	47 of 100 (Notable)
20 December 1949	Vergemont, AU	daily rain	64.0 mm (2.5 in)	45.5 mm (1.8 in)	27 years	47 of 100 (Notable)
20 December 1949	Morstone Station, AU	daily rain	69.9 mm (2.8 in)	61.5 mm (2.4 in)	23 years	46 of 100 (Notable)
20 December 1949	Evesham Station, AU	daily rain	72.4 mm (2.9 in)	45.5 mm (1.8 in)	36 years	45 of 100 (Notable)
20 December 1949	Mudgee (George Street), AU	daily rain	50.8 mm (2.0 in)	19.0 mm (0.7 in)	77 years	44 of 100 (Notable)
20 December 1949	Truchas, US	daily snowfall	38.1 cm (15.0 in)	20.3 cm (8.0 in)	28 years	43 of 100 (Notable)
20 December 1949	Dixon Wwtp, US	daily rain	26.4 mm (1.0 in)	16.2 mm (0.6 in)	44 years	42 of 100 (Notable)
20 December 1949	Strathdarr, AU	daily rain	47.0 mm (1.9 in)	40.1 mm (1.6 in)	27 years	41 of 100 (Notable)
20 December 1949	Murringo (Windermere), AU	daily rain	40.9 mm (1.6 in)	24.4 mm (1.0 in)	59 years	40 of 100 (Notable)
20 December 1949	St Thomas, CA	daily rain	26.9 mm (1.1 in)	17.8 mm (0.7 in)	16 years	40 of 100 (Notable)
20 December 1949	Russellville, US	daily high min	15.6 C (60.1 F)	8.4 C (15.1 F)	58 years	39 of 100 (Notable)
20 December 1949	Huehue 92.1, US	daily rain	86.4 mm (3.4 in)	64.0 mm (2.5 in)	32 years	39 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 1949

Records set or tied on this calendar date in each year from 1793 to 1949. 1949 had 1,141 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 1949-12-20: 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 50	954
50 to 100	12
100 to 150	1
150 to 200	1
200 to 250	1
250 to 300	0
300 to 350	1