Weather Records on 21 April 1952

665 weather records were set or tied worldwide on 21 April 1952. Highest significance: Canon City, US.

Key Facts for 21 April 1952

On 21 April 1952, 665 weather records were set or tied at long-record stations worldwide.
382 were record highs and 55 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 6 monthly and 659 daily.
Canon City set a daily record precipitation of 52.3 mm (2.1 in) on 21 April 1952.
Across 159 earlier years (1793 to 2026) the same calendar date averaged 461 records.

Record Map

665 stations

665 station records on 21 April 1952 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 April 1952: highest significance records shown on the map
Station	Country	Type	Value	Significance
Canon City	United States	Record daily precipitation	52.3 mm (2.1 in)	63 of 100 (Major)
Gumla	India	Record daily precipitation	52.3 mm (2.1 in)	57 of 100 (Notable)
Kuturi	India	Record daily precipitation	83.8 mm (3.3 in)	56 of 100 (Notable)
Tribune 1W	United States	Record daily precipitation	30.5 mm (1.2 in)	53 of 100 (Notable)
Pueblo City Rsvr	United States	Record daily precipitation	42.4 mm (1.7 in)	47 of 100 (Notable)
Saguache	United States	Record daily precipitation	27.2 mm (1.1 in)	44 of 100 (Notable)
Shirol	India	Record daily precipitation	33.0 mm (1.3 in)	43 of 100 (Notable)
Saguache	United States	Record daily snowfall	14.0 cm (5.5 in)	43 of 100 (Notable)
Rocky Ford 2 SE	United States	Record daily precipitation	26.9 mm (1.1 in)	42 of 100 (Notable)
Gazole	India	Record daily precipitation	88.9 mm (3.5 in)	39 of 100 (Notable)
Syracuse 1NE	United States	Record daily precipitation	27.9 mm (1.1 in)	38 of 100 (Notable)
Belgaum	India	Record daily precipitation	30.5 mm (1.2 in)	36 of 100 (Notable)
Hubli	India	Record daily precipitation	30.7 mm (1.2 in)	36 of 100 (Notable)
Miltalie (Hillview)	Australia	Record daily precipitation	43.2 mm (1.7 in)	35 of 100 (Notable)
Pattanamphitta	India	Record daily precipitation	71.1 mm (2.8 in)	35 of 100 (Notable)
Rosedale	Australia	Record daily precipitation	36.8 mm (1.4 in)	33 of 100 (Routine)
Boulder	United States	Record daily precipitation	51.3 mm (2.0 in)	32 of 100 (Routine)
Douglas Smelter	United States	Record low maximum temperature	14.4 C (57.9 F)	31 of 100 (Routine)
Johnson 11 ESE	United States	Record daily precipitation	26.2 mm (1.0 in)	31 of 100 (Routine)
Erick	United States	Record daily precipitation	38.9 mm (1.5 in)	31 of 100 (Routine)
Schreiber	Canada	Record daily precipitation	29.0 mm (1.1 in)	30 of 100 (Routine)
Silverton	United States	Record daily snowfall	25.4 cm (10.0 in)	30 of 100 (Routine)
Charduar	India	Record daily precipitation	41.1 mm (1.6 in)	29 of 100 (Routine)
Bisbee	United States	Record low maximum temperature	10.6 C (51.1 F)	29 of 100 (Routine)
Alton 1 W	United States	Record daily precipitation	31.0 mm (1.2 in)	29 of 100 (Routine)
Regensburg	Germany	Record high minimum temperature	11.3 C (52.3 F)	28 of 100 (Routine)
Godda	India	Record daily precipitation	30.5 mm (1.2 in)	28 of 100 (Routine)
Amarpara	India	Record daily precipitation	43.2 mm (1.7 in)	28 of 100 (Routine)
Salida	United States	Record daily precipitation	29.7 mm (1.2 in)	28 of 100 (Routine)
Osage	United States	Record high minimum temperature	12.8 C (55.0 F)	28 of 100 (Routine)
Ft Bayard 4W	United States	Record low maximum temperature	9.4 C (48.9 F)	28 of 100 (Routine)
Coldwater	Canada	Record high minimum temperature	7.8 C (46.0 F)	27 of 100 (Routine)
Lake Moraine	United States	Record daily precipitation	64.5 mm (2.5 in)	27 of 100 (Routine)
Pitkin	United States	Record daily snowfall	15.2 cm (6.0 in)	27 of 100 (Routine)
Waterdale	United States	Record daily precipitation	29.5 mm (1.2 in)	27 of 100 (Routine)
Walnut	United States	Record high minimum temperature	15.0 C (59.0 F)	27 of 100 (Routine)
Leipzig-Holzhausen	Germany	Record high minimum temperature	11.2 C (52.2 F)	26 of 100 (Routine)
Riva	Italy	Record high minimum temperature	16.0 C (60.8 F)	26 of 100 (Routine)
Bowie	United States	Record low maximum temperature	16.1 C (61.0 F)	26 of 100 (Routine)
Grover 10 W	United States	Record daily snowfall	12.7 cm (5.0 in)	26 of 100 (Routine)
Morrison	United States	Record high minimum temperature	13.9 C (57.0 F)	26 of 100 (Routine)
Manistee 3SE	United States	Record high maximum temperature	26.7 C (80.1 F)	26 of 100 (Routine)
Tucumcari	United States	Record daily precipitation	41.1 mm (1.6 in)	26 of 100 (Routine)
Salzburg	Austria	Record high minimum temperature	10.4 C (50.7 F)	25 of 100 (Routine)
Mahespur	India	Record daily precipitation	28.4 mm (1.1 in)	25 of 100 (Routine)
Haringhata	India	Record daily precipitation	95.5 mm (3.8 in)	25 of 100 (Routine)
Aibonito 1 S	Puerto Rico [United States]	Record daily precipitation	29.0 mm (1.1 in)	25 of 100 (Routine)
Antioch	United States	Record high minimum temperature	11.7 C (53.1 F)	25 of 100 (Routine)
Galva	United States	Record high minimum temperature	14.4 C (57.9 F)	25 of 100 (Routine)
Lake City Exp Farm	United States	Record high maximum temperature	26.1 C (79.0 F)	25 of 100 (Routine)
Berrybank	Australia	Record daily precipitation	29.7 mm (1.2 in)	24 of 100 (Routine)
Fort Frances	Canada	Record high minimum temperature	11.7 C (53.1 F)	24 of 100 (Routine)
Heinersreuth-Vollhof	Germany	Record high minimum temperature	9.9 C (49.8 F)	24 of 100 (Routine)
Mesa	United States	Record low maximum temperature	17.2 C (63.0 F)	24 of 100 (Routine)
Winkelman 6 S	United States	Record low maximum temperature	16.1 C (61.0 F)	24 of 100 (Routine)
Ludington 4 SE	United States	Record high maximum temperature	25.0 C (77.0 F)	24 of 100 (Routine)
Jefferson City Wtp	United States	Record high minimum temperature	15.0 C (59.0 F)	24 of 100 (Routine)
Cambridge St Hospital	United States	Record high maximum temperature	29.4 C (84.9 F)	24 of 100 (Routine)
Norwalk Wwtp	United States	Record high maximum temperature	29.4 C (84.9 F)	24 of 100 (Routine)
Armour	United States	Record daily precipitation	26.4 mm (1.0 in)	24 of 100 (Routine)

Counts by Type and Timescale

665 records

Records set or tied on 21 April 1952 by type: Highest daily maximum 190, Lowest daily maximum 42, Highest daily minimum 192, Lowest daily minimum 13, Heaviest daily rainfall 216, Heaviest daily snowfall 10, Deepest snow cover 2.

Records on 21 April 1952 by type
Record type	Records
Highest daily maximum	190
Lowest daily maximum	42
Highest daily minimum	192
Lowest daily minimum	13
Heaviest daily rainfall	216
Heaviest daily snowfall	10
Deepest snow cover	2

Records on 21 April 1952 by timescale: all-time 0, monthly 6, daily 659.

How Much Records Were Beaten By

533 broken records

Margins by which the 533 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 140.0. Ties are not counted.

Top 20 by Significance

21 April 1952

Top 20 records on 21 April 1952 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 April 1952	Canon City, US	daily rain	52.3 mm (2.1 in)	38.3 mm (1.5 in)	56 years	63 of 100 (Major)
21 April 1952	Gumla, IN	daily rain	52.3 mm (2.1 in)	43.9 mm (1.7 in)	40 years	57 of 100 (Notable)
21 April 1952	Kuturi, IN	daily rain	83.8 mm (3.3 in)	53.3 mm (2.1 in)	51 years	56 of 100 (Notable)
21 April 1952	Tribune 1W, US	daily rain	30.5 mm (1.2 in)	25.4 mm (1.0 in)	56 years	53 of 100 (Notable)
21 April 1952	Pueblo City Rsvr, US	daily rain	42.4 mm (1.7 in)	25.4 mm (1.0 in)	19 years	47 of 100 (Notable)
21 April 1952	Saguache, US	monthly rain	27.2 mm (1.1 in)	6.9 mm (0.27 in)	52 years	44 of 100 (Notable)
21 April 1952	Shirol, IN	daily rain	33.0 mm (1.3 in)	31.2 mm (1.2 in)	45 years	43 of 100 (Notable)
21 April 1952	Saguache, US	daily snowfall	14.0 cm (5.5 in)	14.0 cm (5.5 in)	55 years	43 of 100 (Notable)
21 April 1952	Rocky Ford 2 SE, US	daily rain	26.9 mm (1.1 in)	18.0 mm (0.7 in)	56 years	42 of 100 (Notable)
21 April 1952	Gazole, IN	monthly rain	88.9 mm (3.5 in)	21.6 mm (0.9 in)	26 years	39 of 100 (Notable)
21 April 1952	Syracuse 1NE, US	daily rain	27.9 mm (1.1 in)	25.4 mm (1.0 in)	26 years	38 of 100 (Notable)
21 April 1952	Belgaum, IN	daily rain	30.5 mm (1.2 in)	25.7 mm (1.0 in)	30 years	36 of 100 (Notable)
21 April 1952	Hubli, IN	daily rain	30.7 mm (1.2 in)	19.0 mm (0.7 in)	45 years	36 of 100 (Notable)
21 April 1952	Miltalie (Hillview), AU	daily rain	43.2 mm (1.7 in)	36.8 mm (1.4 in)	3 years	35 of 100 (Notable)
21 April 1952	Pattanamphitta, IN	daily rain	71.1 mm (2.8 in)	36.8 mm (1.4 in)	37 years	35 of 100 (Notable)
21 April 1952	Rosedale, AU	daily rain	36.8 mm (1.4 in)	18.5 mm (0.7 in)	16 years	33 of 100 (Routine)
21 April 1952	Boulder, US	daily rain	51.3 mm (2.0 in)	21.3 mm (0.8 in)	26 years	32 of 100 (Routine)
21 April 1952	Douglas Smelter, US	daily low max	14.4 C (57.9 F)	5.6 C (10.1 F)	45 years	31 of 100 (Routine)
21 April 1952	Johnson 11 ESE, US	daily rain	26.2 mm (1.0 in)	19.8 mm (0.8 in)	24 years	31 of 100 (Routine)
21 April 1952	Erick, US	daily rain	38.9 mm (1.5 in)	21.1 mm (0.8 in)	39 years	31 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 1952

Records set or tied on this calendar date in each year from 1793 to 1952. 1952 had 665 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 1952-04-21: 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 20	506
20 to 40	19
40 to 60	3
60 to 80	1
80 to 100	0
100 to 120	3
120 to 140	1