Weather Records on 21 April 1954

527 weather records were set or tied worldwide on 21 April 1954. Highest significance: Rockwell City, US.

Key Facts for 21 April 1954

On 21 April 1954, 527 weather records were set or tied at long-record stations worldwide.
269 were record highs and 45 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 6 monthly and 521 daily.
Rockwell City set a monthly record daily precipitation of 81.0 mm (3.2 in) on 21 April 1954.
Across 159 earlier years (1793 to 2026) the same calendar date averaged 462 records.

Record Map

527 stations

527 station records on 21 April 1954 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 April 1954: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rockwell City	United States	Record daily precipitation	81.0 mm (3.2 in)	65 of 100 (Major)
Ft Dodge 5NNW	United States	Record daily precipitation	68.6 mm (2.7 in)	50 of 100 (Notable)
Ft Pierce	United States	Record daily precipitation	127.5 mm (5.0 in)	48 of 100 (Notable)
Margaret River Station	Australia	Record daily precipitation	74.9 mm (2.9 in)	47 of 100 (Notable)
Karkaralinsk	Kazakhstan	Record daily precipitation	84.0 mm (3.3 in)	47 of 100 (Notable)
Elim (Hosp)	South Africa	Record daily precipitation	57.5 mm (2.3 in)	47 of 100 (Notable)
Vanrook Station	Australia	Record daily precipitation	56.4 mm (2.2 in)	43 of 100 (Notable)
Denison	United States	Record daily precipitation	68.8 mm (2.7 in)	43 of 100 (Notable)
Langdon Exp Farm	United States	Record daily precipitation	26.7 mm (1.1 in)	41 of 100 (Notable)
Minot Exp STN	United States	Record daily snowfall	14.0 cm (5.5 in)	41 of 100 (Notable)
Langdon Exp Farm	United States	Record daily snowfall	22.9 cm (9.0 in)	40 of 100 (Notable)
Logan 1 WNW	United States	Record daily precipitation	50.0 mm (2.0 in)	39 of 100 (Notable)
Langdon Exp Farm	United States	Record snow depth	20.3 cm (8.0 in)	39 of 100 (Notable)
Toledo 3N	United States	Record daily precipitation	35.6 mm (1.4 in)	38 of 100 (Notable)
Pine Creek	Australia	Record daily precipitation	55.4 mm (2.2 in)	37 of 100 (Notable)
Lucinda Township	Australia	Record daily precipitation	106.9 mm (4.2 in)	37 of 100 (Notable)
Valley of Lagoons	Australia	Record daily precipitation	44.5 mm (1.8 in)	37 of 100 (Notable)
New Smyrna Beach	United States	Record daily precipitation	41.1 mm (1.6 in)	36 of 100 (Notable)
Duiwelskloof (Mun)	South Africa	Record daily precipitation	44.0 mm (1.7 in)	35 of 100 (Notable)
Aurora	United States	Record daily precipitation	47.5 mm (1.9 in)	35 of 100 (Notable)
Mt Garnet Post Office	Australia	Record daily precipitation	39.6 mm (1.6 in)	33 of 100 (Routine)
Palmaryville	South Africa	Record daily precipitation	40.0 mm (1.6 in)	33 of 100 (Routine)
Clay Ctr 6 ESE	United States	Record daily precipitation	44.5 mm (1.8 in)	33 of 100 (Routine)
Spring Creek Station	Australia	Record daily precipitation	31.8 mm (1.3 in)	32 of 100 (Routine)
Chillagoe Atherton Street	Australia	Record daily precipitation	32.5 mm (1.3 in)	32 of 100 (Routine)
Sprague	Canada	Record daily snowfall	8.9 cm (3.5 in)	32 of 100 (Routine)
Centerville	United States	Record daily precipitation	47.2 mm (1.9 in)	32 of 100 (Routine)
Gunnawarra	Australia	Record daily precipitation	26.9 mm (1.1 in)	31 of 100 (Routine)
Claresholm Meadow Creek	Canada	Record daily snowfall	14.2 cm (5.6 in)	31 of 100 (Routine)
Trenton 2	United States	Record high maximum temperature	28.3 C (82.9 F)	31 of 100 (Routine)
Penn Yan	United States	Record high maximum temperature	31.7 C (89.1 F)	31 of 100 (Routine)
Hatfield	United States	Record daily precipitation	34.8 mm (1.4 in)	31 of 100 (Routine)
Watseka Public Works	United States	Record high minimum temperature	15.6 C (60.1 F)	30 of 100 (Routine)
Decorah	United States	Record daily precipitation	27.2 mm (1.1 in)	30 of 100 (Routine)
Shelbina	United States	Record daily precipitation	48.8 mm (1.9 in)	30 of 100 (Routine)
Geneva	United States	Record daily precipitation	35.6 mm (1.4 in)	30 of 100 (Routine)
Irvinebank	Australia	Record daily precipitation	37.3 mm (1.5 in)	29 of 100 (Routine)
Greenvale	Australia	Record daily precipitation	29.2 mm (1.1 in)	29 of 100 (Routine)
Indian Bay	Canada	Record daily snowfall	8.9 cm (3.5 in)	29 of 100 (Routine)
Ridgetown	Canada	Record high maximum temperature	25.0 C (77.0 F)	29 of 100 (Routine)
Regensburg	Germany	Record low maximum temperature	6.9 C (44.4 F)	29 of 100 (Routine)
Westfalia	South Africa	Record daily precipitation	53.0 mm (2.1 in)	29 of 100 (Routine)
Quanbun Downs	Australia	Record daily precipitation	166.9 mm (6.6 in)	28 of 100 (Routine)
Herberton White St	Australia	Record daily precipitation	29.2 mm (1.1 in)	28 of 100 (Routine)
Woodstock	Canada	Record high maximum temperature	24.4 C (75.9 F)	28 of 100 (Routine)
Norton 9SSE	United States	Record daily precipitation	27.9 mm (1.1 in)	28 of 100 (Routine)
Hastings 4N	United States	Record daily precipitation	58.9 mm (2.3 in)	28 of 100 (Routine)
Freehold-Marlboro	United States	Record high maximum temperature	28.9 C (84.0 F)	28 of 100 (Routine)
Kailua 446	United States	Record low minimum temperature	12.8 C (55.0 F)	28 of 100 (Routine)
Kohala Mis 175.1	United States	Record low minimum temperature	15.6 C (60.1 F)	28 of 100 (Routine)
Lundbreck	Canada	Record daily snowfall	12.7 cm (5.0 in)	27 of 100 (Routine)
Western 2W	United States	Record daily precipitation	29.5 mm (1.2 in)	27 of 100 (Routine)
State College	United States	Record high minimum temperature	15.6 C (60.1 F)	27 of 100 (Routine)
Pet Jorhat	India	Record daily precipitation	40.6 mm (1.6 in)	26 of 100 (Routine)
Winkelman 6 S	United States	Record high maximum temperature	35.0 C (95.0 F)	26 of 100 (Routine)
Oakland	United States	Record high maximum temperature	27.2 C (81.0 F)	26 of 100 (Routine)
Mt Carroll	United States	Record daily precipitation	34.0 mm (1.3 in)	26 of 100 (Routine)
Osage	United States	Record daily precipitation	30.0 mm (1.2 in)	26 of 100 (Routine)
Daly River Police	Australia	Record daily precipitation	57.9 mm (2.3 in)	25 of 100 (Routine)
Dunbar Station	Australia	Record daily precipitation	50.3 mm (2.0 in)	25 of 100 (Routine)

Counts by Type and Timescale

527 records

Records set or tied on 21 April 1954 by type: Highest daily maximum 164, Lowest daily maximum 15, Highest daily minimum 105, Lowest daily minimum 30, Heaviest daily rainfall 193, Heaviest daily snowfall 16, Deepest snow cover 4.

Records on 21 April 1954 by type
Record type	Records
Highest daily maximum	164
Lowest daily maximum	15
Highest daily minimum	105
Lowest daily minimum	30
Heaviest daily rainfall	193
Heaviest daily snowfall	16
Deepest snow cover	4

Records on 21 April 1954 by timescale: all-time 0, monthly 6, daily 521.

How Much Records Were Beaten By

423 broken records

Margins by which the 423 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 204.0. Ties are not counted.

Top 20 by Significance

21 April 1954

Top 20 records on 21 April 1954 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 April 1954	Rockwell City, US	monthly rain	81.0 mm (3.2 in)	31.5 mm (1.2 in)	49 years	65 of 100 (Major)
21 April 1954	Ft Dodge 5NNW, US	monthly rain	68.6 mm (2.7 in)	17.8 mm (0.7 in)	54 years	50 of 100 (Notable)
21 April 1954	Ft Pierce, US	daily rain	127.5 mm (5.0 in)	52.6 mm (2.1 in)	48 years	48 of 100 (Notable)
21 April 1954	Margaret River Station, AU	daily rain	74.9 mm (2.9 in)	67.5 mm (2.7 in)	11 years	47 of 100 (Notable)
21 April 1954	Karkaralinsk, KZ	daily rain	84.0 mm (3.3 in)	48.0 mm (1.9 in)	12 years	47 of 100 (Notable)
21 April 1954	Elim (Hosp), ZA	daily rain	57.5 mm (2.3 in)	49.9 mm (2.0 in)	8 years	47 of 100 (Notable)
21 April 1954	Vanrook Station, AU	daily rain	56.4 mm (2.2 in)	56.4 mm (2.2 in)	32 years	43 of 100 (Notable)
21 April 1954	Denison, US	daily rain	68.8 mm (2.7 in)	29.9 mm (1.2 in)	21 years	43 of 100 (Notable)
21 April 1954	Langdon Exp Farm, US	daily rain	26.7 mm (1.1 in)	14.0 mm (0.6 in)	49 years	41 of 100 (Notable)
21 April 1954	Minot Exp STN, US	daily snowfall	14.0 cm (5.5 in)	14.0 cm (5.5 in)	48 years	41 of 100 (Notable)
21 April 1954	Langdon Exp Farm, US	daily snowfall	22.9 cm (9.0 in)	20.4 cm (8.0 in)	3 years	40 of 100 (Notable)
21 April 1954	Logan 1 WNW, US	daily rain	50.0 mm (2.0 in)	26.6 mm (1.0 in)	21 years	39 of 100 (Notable)
21 April 1954	Langdon Exp Farm, US	daily snow depth	20.3 cm (8.0 in)	20.3 cm (8.0 in)	47 years	39 of 100 (Notable)
21 April 1954	Toledo 3N, US	daily rain	35.6 mm (1.4 in)	17.8 mm (0.7 in)	44 years	38 of 100 (Notable)
21 April 1954	Pine Creek, AU	daily rain	55.4 mm (2.2 in)	25.4 mm (1.0 in)	45 years	37 of 100 (Notable)
21 April 1954	Lucinda Township, AU	daily rain	106.9 mm (4.2 in)	63.7 mm (2.5 in)	40 years	37 of 100 (Notable)
21 April 1954	Valley of Lagoons, AU	daily rain	44.5 mm (1.8 in)	22.1 mm (0.9 in)	33 years	37 of 100 (Notable)
21 April 1954	New Smyrna Beach, US	daily rain	41.1 mm (1.6 in)	22.6 mm (0.9 in)	48 years	36 of 100 (Notable)
21 April 1954	Duiwelskloof (Mun), ZA	daily rain	44.0 mm (1.7 in)	28.8 mm (1.1 in)	25 years	35 of 100 (Notable)
21 April 1954	Aurora, US	daily rain	47.5 mm (1.9 in)	31.0 mm (1.2 in)	3 years	35 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 1954

Records set or tied on this calendar date in each year from 1793 to 1954. 1954 had 527 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 1954-04-21: 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 2026-10-15 (15 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	410
50 to 100	8
100 to 150	3
150 to 200	0
200 to 250	2