Weather Records on 21 December 1947

700 weather records were set or tied worldwide on 21 December 1947. Highest significance: Stanley Post Office, AU.

Key Facts for 21 December 1947

On 21 December 1947, 700 weather records were set or tied at long-record stations worldwide.
15 were record highs and 3 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 23 monthly and 677 daily.
Stanley Post Office set a monthly record daily precipitation of 107.7 mm (4.2 in) on 21 December 1947.
Across 158 earlier years (1793 to 2025) the same calendar date averaged 488 records.

Record Map

700 stations

700 station records on 21 December 1947 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 December 1947: highest significance records shown on the map
Station	Country	Type	Value	Significance
Stanley Post Office	Australia	Record daily precipitation	107.7 mm (4.2 in)	62 of 100 (Major)
Cape Grim (Woolnorth)	Australia	Record daily precipitation	67.3 mm (2.6 in)	59 of 100 (Notable)
Springvale	Australia	Record daily precipitation	77.5 mm (3.1 in)	58 of 100 (Notable)
Windsor Kings College	Canada	Record daily snowfall	34.3 cm (13.5 in)	58 of 100 (Notable)
Kalvan	India	Record daily precipitation	58.7 mm (2.3 in)	58 of 100 (Notable)
Dolphin@S Nose Obsy	India	Record daily precipitation	50.0 mm (2.0 in)	57 of 100 (Notable)
Kopargaon	India	Record daily precipitation	34.3 mm (1.4 in)	56 of 100 (Notable)
Bungaree (Kirks Reservoir)	Australia	Record daily precipitation	41.9 mm (1.6 in)	54 of 100 (Notable)
Elaine (Larundel)	Australia	Record daily precipitation	39.1 mm (1.5 in)	53 of 100 (Notable)
Parola	India	Record daily precipitation	38.1 mm (1.5 in)	53 of 100 (Notable)
Wagga Wagga (Kooringal)	Australia	Record daily precipitation	31.5 mm (1.2 in)	52 of 100 (Notable)
Inverloch	Australia	Record daily precipitation	41.7 mm (1.6 in)	52 of 100 (Notable)
Bannockburn	Australia	Record daily precipitation	41.7 mm (1.6 in)	51 of 100 (Notable)
Smeaton Weir	Australia	Record daily precipitation	36.1 mm (1.4 in)	51 of 100 (Notable)
Parys (Mun)	South Africa	Record daily precipitation	49.0 mm (1.9 in)	51 of 100 (Notable)
Aiken 5SE	United States	Record daily precipitation	58.7 mm (2.3 in)	50 of 100 (Notable)
Tarcutta Post Office	Australia	Record daily precipitation	29.2 mm (1.1 in)	49 of 100 (Notable)
Cape Schanck Lighthouse	Australia	Record daily precipitation	37.3 mm (1.5 in)	49 of 100 (Notable)
Bhusaval Sr	India	Record daily precipitation	38.1 mm (1.5 in)	48 of 100 (Notable)
Khair	India	Record daily precipitation	28.4 mm (1.1 in)	48 of 100 (Notable)
Ellerslie	Australia	Record daily precipitation	44.5 mm (1.8 in)	47 of 100 (Notable)
Dromana	Australia	Record daily precipitation	42.7 mm (1.7 in)	47 of 100 (Notable)
Yandoit (Spring Vale)	Australia	Record daily precipitation	33.3 mm (1.3 in)	47 of 100 (Notable)
Lower Boro (Calderwood)	Australia	Record daily precipitation	37.1 mm (1.5 in)	46 of 100 (Notable)
Batlow Post Office	Australia	Record daily precipitation	52.8 mm (2.1 in)	46 of 100 (Notable)
Cowes	Australia	Record daily precipitation	45.7 mm (1.8 in)	46 of 100 (Notable)
Marrawah (State School)	Australia	Record daily precipitation	42.7 mm (1.7 in)	46 of 100 (Notable)
Aramac Post Office	Australia	Record daily precipitation	55.9 mm (2.2 in)	45 of 100 (Notable)
Moorina (Frome Dam)	Australia	Record daily precipitation	48.3 mm (1.9 in)	45 of 100 (Notable)
Agar	India	Record daily precipitation	25.7 mm (1.0 in)	45 of 100 (Notable)
Mau	India	Record daily precipitation	35.6 mm (1.4 in)	45 of 100 (Notable)
Bottineau	United States	Record snow depth	27.9 cm (11.0 in)	45 of 100 (Notable)
Tootool (Bryntirion)	Australia	Record daily precipitation	38.6 mm (1.5 in)	44 of 100 (Notable)
Ballarat Botanical Gardens	Australia	Record daily precipitation	25.4 mm (1.0 in)	43 of 100 (Notable)
Naracoopa	Australia	Record daily precipitation	64.0 mm (2.5 in)	43 of 100 (Notable)
Thule	Australia	Record daily precipitation	32.5 mm (1.3 in)	43 of 100 (Notable)
Caucaia	Brazil	Record daily precipitation	90.5 mm (3.6 in)	43 of 100 (Notable)
Anadia	Brazil	Record daily precipitation	68.6 mm (2.7 in)	43 of 100 (Notable)
Moira Lower	Australia	Record daily precipitation	27.9 mm (1.1 in)	42 of 100 (Notable)
Mincha	Australia	Record daily precipitation	35.6 mm (1.4 in)	42 of 100 (Notable)
Geelong Sec	Australia	Record daily precipitation	30.7 mm (1.2 in)	42 of 100 (Notable)
Werribee Research Farm	Australia	Record daily precipitation	33.0 mm (1.3 in)	42 of 100 (Notable)
Yambacoona	Australia	Record daily precipitation	54.4 mm (2.1 in)	42 of 100 (Notable)
Atalaia	Brazil	Record daily precipitation	68.8 mm (2.7 in)	42 of 100 (Notable)
Meredith (Wattle Vale)	Australia	Record daily precipitation	27.9 mm (1.1 in)	41 of 100 (Notable)
Dhulia	India	Record daily precipitation	40.6 mm (1.6 in)	41 of 100 (Notable)
Queanbeyan (Mount Campbell)	Australia	Record daily precipitation	62.0 mm (2.4 in)	40 of 100 (Notable)
Tumbarumba Post Office	Australia	Record daily precipitation	38.9 mm (1.5 in)	40 of 100 (Notable)
Fichtelberg	Germany	Record daily precipitation	28.4 mm (1.1 in)	40 of 100 (Notable)
Wilsons Promontory Lighthouse	Australia	Record daily precipitation	62.0 mm (2.4 in)	39 of 100 (Notable)
Shelford	Australia	Record daily precipitation	29.2 mm (1.1 in)	39 of 100 (Notable)
Bah	India	Record daily precipitation	26.4 mm (1.0 in)	39 of 100 (Notable)
Portsea Quarantine Station	Australia	Record daily precipitation	39.6 mm (1.6 in)	38 of 100 (Notable)
Teresina	Brazil	Record daily precipitation	62.5 mm (2.5 in)	38 of 100 (Notable)
St Marys (Cullenswood)	Australia	Record daily precipitation	104.1 mm (4.1 in)	37 of 100 (Notable)
Gajapathinagaram	India	Record daily precipitation	33.0 mm (1.3 in)	37 of 100 (Notable)
Dutson	Australia	Record daily precipitation	38.4 mm (1.5 in)	36 of 100 (Notable)
Balliang East	Australia	Record daily precipitation	29.7 mm (1.2 in)	36 of 100 (Notable)
Campbelltown	Australia	Record daily precipitation	43.9 mm (1.7 in)	36 of 100 (Notable)
Fortaleza (Escola Regional)	Brazil	Record daily precipitation	93.2 mm (3.7 in)	36 of 100 (Notable)

Counts by Type and Timescale

700 records

Records set or tied on 21 December 1947 by type: Highest daily maximum 6, Lowest daily maximum 1, Highest daily minimum 9, Lowest daily minimum 2, Heaviest daily rainfall 666, Heaviest daily snowfall 4, Deepest snow cover 12.

Records on 21 December 1947 by type
Record type	Records
Highest daily maximum	6
Lowest daily maximum	1
Highest daily minimum	9
Lowest daily minimum	2
Heaviest daily rainfall	666
Heaviest daily snowfall	4
Deepest snow cover	12

Records on 21 December 1947 by timescale: all-time 0, monthly 23, daily 677.

How Much Records Were Beaten By

668 broken records

Margins by which the 668 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 318.0. Ties are not counted.

Top 20 by Significance

21 December 1947

Top 20 records on 21 December 1947 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 December 1947	Stanley Post Office, AU	monthly rain	107.7 mm (4.2 in)	61.0 mm (2.4 in)	17 years	62 of 100 (Major)
21 December 1947	Cape Grim (Woolnorth), AU	monthly rain	67.3 mm (2.6 in)	19.8 mm (0.8 in)	42 years	59 of 100 (Notable)
21 December 1947	Springvale, AU	daily rain	77.5 mm (3.1 in)	55.9 mm (2.2 in)	44 years	58 of 100 (Notable)
21 December 1947	Windsor Kings College, CA	daily snowfall	34.3 cm (13.5 in)	31.8 cm (12.5 in)	38 years	58 of 100 (Notable)
21 December 1947	Kalvan, IN	monthly rain	58.7 mm (2.3 in)	35.8 mm (1.4 in)	16 years	58 of 100 (Notable)
21 December 1947	Dolphin@S Nose Obsy, IN	daily rain	50.0 mm (2.0 in)	46.7 mm (1.8 in)	44 years	57 of 100 (Notable)
21 December 1947	Kopargaon, IN	daily rain	34.3 mm (1.4 in)	34.3 mm (1.4 in)	45 years	56 of 100 (Notable)
21 December 1947	Bungaree (Kirks Reservoir), AU	daily rain	41.9 mm (1.6 in)	26.2 mm (1.0 in)	61 years	54 of 100 (Notable)
21 December 1947	Elaine (Larundel), AU	daily rain	39.1 mm (1.5 in)	32.7 mm (1.3 in)	37 years	53 of 100 (Notable)
21 December 1947	Parola, IN	daily rain	38.1 mm (1.5 in)	38.1 mm (1.5 in)	45 years	53 of 100 (Notable)
21 December 1947	Wagga Wagga (Kooringal), AU	daily rain	31.5 mm (1.2 in)	21.6 mm (0.9 in)	74 years	52 of 100 (Notable)
21 December 1947	Inverloch, AU	daily rain	41.7 mm (1.6 in)	26.2 mm (1.0 in)	57 years	52 of 100 (Notable)
21 December 1947	Bannockburn, AU	daily rain	41.7 mm (1.6 in)	32.8 mm (1.3 in)	32 years	51 of 100 (Notable)
21 December 1947	Smeaton Weir, AU	daily rain	36.1 mm (1.4 in)	29.7 mm (1.2 in)	52 years	51 of 100 (Notable)
21 December 1947	Parys (Mun), ZA	daily rain	49.0 mm (1.9 in)	40.1 mm (1.6 in)	36 years	51 of 100 (Notable)
21 December 1947	Aiken 5SE, US	daily rain	58.7 mm (2.3 in)	43.5 mm (1.7 in)	44 years	50 of 100 (Notable)
21 December 1947	Tarcutta Post Office, AU	daily rain	29.2 mm (1.1 in)	20.3 mm (0.8 in)	74 years	49 of 100 (Notable)
21 December 1947	Cape Schanck Lighthouse, AU	daily rain	37.3 mm (1.5 in)	20.0 mm (0.8 in)	57 years	49 of 100 (Notable)
21 December 1947	Bhusaval Sr, IN	daily rain	38.1 mm (1.5 in)	38.1 mm (1.5 in)	45 years	48 of 100 (Notable)
21 December 1947	Khair, IN	daily rain	28.4 mm (1.1 in)	25.4 mm (1.0 in)	17 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 1947

Records set or tied on this calendar date in each year from 1793 to 1947. 1947 had 700 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 1947-12-21: 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	654
50 to 100	7
100 to 150	4
150 to 200	2
200 to 250	0
250 to 300	0
300 to 350	1