Weather Records on 21 April 1947

459 weather records were set or tied worldwide on 21 April 1947. Highest significance: Eustis 2 S, US.

Key Facts for 21 April 1947

On 21 April 1947, 459 weather records were set or tied at long-record stations worldwide.
68 were record highs and 175 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 451 daily.
Eustis 2 S set a daily record precipitation of 64.8 mm (2.6 in) on 21 April 1947.
Across 159 earlier years (1793 to 2026) the same calendar date averaged 462 records.

Record Map

459 stations

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

Weather records on 21 April 1947: highest significance records shown on the map
Station	Country	Type	Value	Significance
Eustis 2 S	United States	Record daily precipitation	64.8 mm (2.6 in)	56 of 100 (Notable)
Roldal	Norway	Record daily precipitation	67.2 mm (2.6 in)	55 of 100 (Notable)
Newton Rigg	United Kingdom	Record daily precipitation	42.7 mm (1.7 in)	55 of 100 (Notable)
Nymagee (Pyramid)	Australia	Record daily precipitation	41.4 mm (1.6 in)	47 of 100 (Notable)
Thulimbah	Australia	Record daily precipitation	39.4 mm (1.6 in)	44 of 100 (Notable)
Cobar (Meryula)	Australia	Record daily precipitation	31.8 mm (1.3 in)	39 of 100 (Notable)
Yathong	Australia	Record daily precipitation	25.7 mm (1.0 in)	37 of 100 (Notable)
Stonyfell	Australia	Record daily precipitation	25.1 mm (1.0 in)	35 of 100 (Notable)
Merriwa (Terragong)	Australia	Record daily precipitation	30.0 mm (1.2 in)	35 of 100 (Notable)
Leongatha Sth Gippsland Water	Australia	Record daily precipitation	32.0 mm (1.3 in)	35 of 100 (Notable)
Montpelier Rs	United States	Record daily precipitation	33.8 mm (1.3 in)	35 of 100 (Notable)
Cobar (Lerida)	Australia	Record daily precipitation	36.3 mm (1.4 in)	33 of 100 (Routine)
Cape Grim (Woolnorth)	Australia	Record daily precipitation	32.3 mm (1.3 in)	33 of 100 (Routine)
Rani(Ranigoda)	India	Record daily precipitation	52.6 mm (2.1 in)	33 of 100 (Routine)
Berens River	Canada	Record daily snowfall	15.2 cm (6.0 in)	32 of 100 (Routine)
Albany	United States	Record daily precipitation	35.3 mm (1.4 in)	32 of 100 (Routine)
Lysebotn	Norway	Record daily precipitation	47.9 mm (1.9 in)	30 of 100 (Routine)
Middletown 4 W	United States	Record low maximum temperature	3.3 C (37.9 F)	30 of 100 (Routine)
Teresina	Brazil	Record daily precipitation	65.0 mm (2.6 in)	29 of 100 (Routine)
Farrell Sharon	United States	Record daily precipitation	31.8 mm (1.3 in)	29 of 100 (Routine)
Thathaiengarpet	India	Record daily precipitation	40.6 mm (1.6 in)	28 of 100 (Routine)
Sterling	United States	Record daily precipitation	31.5 mm (1.2 in)	28 of 100 (Routine)
Adelaide (Thorndon Park)	Australia	Record daily precipitation	26.7 mm (1.1 in)	27 of 100 (Routine)
Meeker	United States	Record high minimum temperature	7.2 C (45.0 F)	27 of 100 (Routine)
Newcastle	United States	Record daily snowfall	5.1 cm (2.0 in)	27 of 100 (Routine)
Mistassini Post	Canada	Record low maximum temperature	-13.3 C (8.1 F)	26 of 100 (Routine)
Yellow Mountain	Australia	Record daily precipitation	33.8 mm (1.3 in)	25 of 100 (Routine)
Vastervik	Sweden	Record high maximum temperature	19.4 C (66.9 F)	25 of 100 (Routine)
Princeton	United States	Record daily precipitation	32.0 mm (1.3 in)	25 of 100 (Routine)
Moorhead	United States	Record low maximum temperature	13.3 C (55.9 F)	25 of 100 (Routine)
Circleville	United States	Record daily precipitation	66.0 mm (2.6 in)	25 of 100 (Routine)
Lubeck-Werft	Germany	Record high minimum temperature	10.2 C (50.4 F)	24 of 100 (Routine)
Sogndal - Selseng	Norway	Record daily precipitation	40.0 mm (1.6 in)	24 of 100 (Routine)
Lancaster 2 NW	United States	Record daily precipitation	40.6 mm (1.6 in)	24 of 100 (Routine)
Border 3 N	United States	Record daily snowfall	10.2 cm (4.0 in)	24 of 100 (Routine)
Bremen-Seefahrtschule	Germany	Record high minimum temperature	11.6 C (52.9 F)	23 of 100 (Routine)
Scottsburg	United States	Record daily precipitation	77.7 mm (3.1 in)	23 of 100 (Routine)
Butte Bert Mooney AP	United States	Record daily snowfall	8.6 cm (3.4 in)	23 of 100 (Routine)
Meadows	Australia	Record daily precipitation	32.8 mm (1.3 in)	22 of 100 (Routine)
Irish Lords	Australia	Record daily precipitation	38.1 mm (1.5 in)	22 of 100 (Routine)
Ico	Brazil	Record daily precipitation	38.5 mm (1.5 in)	22 of 100 (Routine)
Triunfo	Brazil	Record daily precipitation	105.3 mm (4.1 in)	22 of 100 (Routine)
Seven Persons	Canada	Record daily snowfall	5.1 cm (2.0 in)	22 of 100 (Routine)
Bathurst	Canada	Record low minimum temperature	-9.4 C (15.1 F)	22 of 100 (Routine)
Marnitz	Germany	Record high minimum temperature	10.5 C (50.9 F)	22 of 100 (Routine)
Suldalsvatn	Norway	Record daily precipitation	57.2 mm (2.3 in)	22 of 100 (Routine)
Oktjabrskij-Gorodok	Russia	Record low minimum temperature	-5.2 C (22.6 F)	22 of 100 (Routine)
Nashua 2 NNW	United States	Record daily precipitation	37.3 mm (1.5 in)	22 of 100 (Routine)
Farias Brito	Brazil	Record daily precipitation	48.6 mm (1.9 in)	21 of 100 (Routine)
La Pocatiere Cda	Canada	Record low minimum temperature	-11.7 C (10.9 F)	21 of 100 (Routine)
Edmundston	Canada	Record low minimum temperature	-12.2 C (10.0 F)	21 of 100 (Routine)
Bulken	Norway	Record daily precipitation	33.0 mm (1.3 in)	21 of 100 (Routine)
Pilgrims Rest (Pol)	South Africa	Record daily precipitation	50.8 mm (2.0 in)	21 of 100 (Routine)
Marianna 2 S	United States	Record low maximum temperature	14.4 C (57.9 F)	21 of 100 (Routine)
Seymour 1 NNW	United States	Record low maximum temperature	6.1 C (43.0 F)	21 of 100 (Routine)
Skjak	Norway	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)
McGill	United States	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Boverdal	Norway	Record daily precipitation	10.9 mm (0.4 in)	20 of 100 (Routine)
Ibapah	United States	Record daily precipitation	23.1 mm (0.9 in)	20 of 100 (Routine)
Mount Gambier Post Office	Australia	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)

Counts by Type and Timescale

459 records

Records set or tied on 21 April 1947 by type: Highest daily maximum 22, Lowest daily maximum 131, Highest daily minimum 46, Lowest daily minimum 44, Heaviest daily rainfall 188, Heaviest daily snowfall 24, Deepest snow cover 4.

Records on 21 April 1947 by type
Record type	Records
Highest daily maximum	22
Lowest daily maximum	131
Highest daily minimum	46
Lowest daily minimum	44
Heaviest daily rainfall	188
Heaviest daily snowfall	24
Deepest snow cover	4

Records on 21 April 1947 by timescale: all-time 0, monthly 8, daily 451.

How Much Records Were Beaten By

368 broken records

Margins by which the 368 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 130.0. Ties are not counted.

Top 20 by Significance

21 April 1947

Top 20 records on 21 April 1947 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 April 1947	Eustis 2 S, US	daily rain	64.8 mm (2.6 in)	53.1 mm (2.1 in)	41 years	56 of 100 (Notable)
21 April 1947	Roldal, NO	monthly rain	67.2 mm (2.6 in)	25.9 mm (1.0 in)	12 years	55 of 100 (Notable)
21 April 1947	Newton Rigg, GB	monthly rain	42.7 mm (1.7 in)	13.2 mm (0.5 in)	24 years	55 of 100 (Notable)
21 April 1947	Nymagee (Pyramid), AU	daily rain	41.4 mm (1.6 in)	33.3 mm (1.3 in)	45 years	47 of 100 (Notable)
21 April 1947	Thulimbah, AU	daily rain	39.4 mm (1.6 in)	35.3 mm (1.4 in)	18 years	44 of 100 (Notable)
21 April 1947	Cobar (Meryula), AU	daily rain	31.8 mm (1.3 in)	21.1 mm (0.8 in)	60 years	39 of 100 (Notable)
21 April 1947	Yathong, AU	daily rain	25.7 mm (1.0 in)	22.9 mm (0.9 in)	30 years	37 of 100 (Notable)
21 April 1947	Stonyfell, AU	daily rain	25.1 mm (1.0 in)	11.6 mm (0.5 in)	45 years	35 of 100 (Notable)
21 April 1947	Merriwa (Terragong), AU	daily rain	30.0 mm (1.2 in)	16.3 mm (0.6 in)	54 years	35 of 100 (Notable)
21 April 1947	Leongatha Sth Gippsland Water, AU	daily rain	32.0 mm (1.3 in)	14.0 mm (0.6 in)	45 years	35 of 100 (Notable)
21 April 1947	Montpelier Rs, US	monthly rain	33.8 mm (1.3 in)	7.1 mm (0.28 in)	20 years	35 of 100 (Notable)
21 April 1947	Cobar (Lerida), AU	daily rain	36.3 mm (1.4 in)	12.2 mm (0.5 in)	50 years	33 of 100 (Routine)
21 April 1947	Cape Grim (Woolnorth), AU	daily rain	32.3 mm (1.3 in)	14.3 mm (0.6 in)	21 years	33 of 100 (Routine)
21 April 1947	Rani(Ranigoda), IN	daily rain	52.6 mm (2.1 in)	23.6 mm (0.9 in)	30 years	33 of 100 (Routine)
21 April 1947	Berens River, CA	daily snowfall	15.2 cm (6.0 in)	10.1 cm (4.0 in)	25 years	32 of 100 (Routine)
21 April 1947	Albany, US	daily rain	35.3 mm (1.4 in)	14.0 mm (0.6 in)	32 years	32 of 100 (Routine)
21 April 1947	Lysebotn, NO	daily rain	47.9 mm (1.9 in)	25.9 mm (1.0 in)	2 years	30 of 100 (Routine)
21 April 1947	Middletown 4 W, US	daily low max	3.3 C (37.9 F)	1.7 C (3.1 F)	71 years	30 of 100 (Routine)
21 April 1947	Teresina, BR	daily rain	65.0 mm (2.6 in)	36.7 mm (1.4 in)	21 years	29 of 100 (Routine)
21 April 1947	Farrell Sharon, US	daily rain	31.8 mm (1.3 in)	14.5 mm (0.6 in)	26 years	29 of 100 (Routine)

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 459 records.

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

Records on 04-21 in each year
Year	Records
1793	1
1814	1
1820	1
1838	1
1849	2
1851	1
1852	3
1854	1
1858	3
1861	2
1865	3
1866	1
1868	1
1870	1
1875	4
1876	2
1877	1
1879	3
1880	1
1881	1
1882	1
1884	1
1885	2
1888	1
1890	1
1891	1
1892	1
1893	2
1894	4
1895	1
1897	1
1898	2
1899	2
1900	7
1901	17
1902	7
1903	3
1904	10
1905	18
1906	5
1907	17
1908	25
1909	20
1910	33
1911	9
1912	22
1913	14
1914	220
1915	24
1916	64
1917	48
1918	84
1919	31
1920	85
1921	59
1922	70
1923	223
1924	119
1925	295
1926	148
1927	284
1928	269
1929	193
1930	127
1931	358
1932	304
1933	201
1934	497
1935	266
1936	277
1937	416
1938	295
1939	110
1940	462
1941	306
1942	285
1943	481
1944	261
1945	367
1946	448
1947	459
1948	365
1949	448
1950	529
1951	884
1952	665
1953	640
1954	527
1955	607
1956	497
1957	824
1958	329
1959	505
1960	889
1961	647
1962	319
1963	778
1964	1,125
1965	658
1966	756
1967	903
1968	655
1969	388
1970	728
1971	546
1972	593
1973	1,163
1974	528
1975	360
1976	452
1977	854
1978	735
1979	449
1980	1,934
1981	944
1982	1,075
1983	1,366
1984	1,231
1985	1,245
1986	977
1987	1,290
1988	898
1989	1,557
1990	1,463
1991	1,291
1992	1,763
1993	847
1994	859
1995	1,476
1996	788
1997	964
1998	876
1999	752
2000	921
2001	967
2002	1,312
2003	607
2004	586
2005	693
2006	761
2007	480
2008	1,327
2009	983
2010	805
2011	1,053
2012	687
2013	1,015
2014	393
2015	621
2016	587
2017	797
2018	862
2019	731
2020	397
2021	1,608
2022	433
2023	887
2024	754
2025	506
2026	853

Download the Data

Data for records on 1947-04-21: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 20	335
20 to 40	19
40 to 60	9
60 to 80	3
80 to 100	0
100 to 120	1
120 to 140	1