Weather Records on 21 April 1959

505 weather records were set or tied worldwide on 21 April 1959. Highest significance: Engcobo (Tnk), ZA.

Key Facts for 21 April 1959

On 21 April 1959, 505 weather records were set or tied at long-record stations worldwide.
57 were record highs and 247 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 497 daily.
Engcobo (Tnk) set a daily record precipitation of 51.0 mm (2.0 in) on 21 April 1959.
Across 159 earlier years (1793 to 2026) the same calendar date averaged 462 records.

Record Map

505 stations

505 station records on 21 April 1959 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 April 1959: highest significance records shown on the map
Station	Country	Type	Value	Significance
Engcobo (Tnk)	South Africa	Record daily precipitation	51.0 mm (2.0 in)	58 of 100 (Notable)
Pio IX (Patrocinio)	Brazil	Record daily precipitation	70.0 mm (2.8 in)	56 of 100 (Notable)
Avoca	South Africa	Record daily precipitation	57.5 mm (2.3 in)	55 of 100 (Notable)
East London -Signal STN	South Africa	Record daily precipitation	49.7 mm (2.0 in)	50 of 100 (Notable)
Wolfridge (Bos)	South Africa	Record daily precipitation	133.0 mm (5.2 in)	50 of 100 (Notable)
Basantpur	India	Record daily precipitation	36.0 mm (1.4 in)	48 of 100 (Notable)
Cornucopia	United States	Record daily precipitation	46.7 mm (1.8 in)	47 of 100 (Notable)
Baunsi	India	Record daily precipitation	38.1 mm (1.5 in)	44 of 100 (Notable)
Plant City	United States	Record daily precipitation	47.5 mm (1.9 in)	43 of 100 (Notable)
Kieskamahoek (Pol)	South Africa	Record daily precipitation	41.8 mm (1.6 in)	42 of 100 (Notable)
Bencuti (Bos)	South Africa	Record daily precipitation	44.0 mm (1.7 in)	42 of 100 (Notable)
Coleman	Canada	Record daily snowfall	27.9 cm (11.0 in)	41 of 100 (Notable)
Atmakur	India	Record daily precipitation	39.6 mm (1.6 in)	41 of 100 (Notable)
Grinnell 3 SW	United States	Record snow depth	15.2 cm (6.0 in)	40 of 100 (Notable)
Qacu (Bos)	South Africa	Record daily precipitation	41.5 mm (1.6 in)	39 of 100 (Notable)
Amanzamnyama (Bos)	South Africa	Record daily precipitation	55.3 mm (2.2 in)	39 of 100 (Notable)
Webster City	United States	Record daily snowfall	12.7 cm (5.0 in)	37 of 100 (Notable)
Baziya (Bos)	South Africa	Record daily precipitation	64.0 mm (2.5 in)	34 of 100 (Routine)
Oran-Hopital Militaire	Algeria	Record low minimum temperature	4.0 C (39.2 F)	33 of 100 (Routine)
Cata (Bos)	South Africa	Record daily precipitation	42.0 mm (1.7 in)	33 of 100 (Routine)
Ntywenka (Bos)	South Africa	Record daily precipitation	58.0 mm (2.3 in)	33 of 100 (Routine)
Tahlequah	United States	Record low maximum temperature	9.4 C (48.9 F)	33 of 100 (Routine)
Ventnor	South Africa	Record daily precipitation	38.3 mm (1.5 in)	32 of 100 (Routine)
Glenora	South Africa	Record daily precipitation	30.0 mm (1.2 in)	32 of 100 (Routine)
Bartow 1SE	United States	Record daily precipitation	32.5 mm (1.3 in)	32 of 100 (Routine)
Wagoner	United States	Record low maximum temperature	10.0 C (50.0 F)	32 of 100 (Routine)
Karlsruhe	Germany	Record low minimum temperature	-4.3 C (24.3 F)	31 of 100 (Routine)
Nqamakwe (Tnk)	South Africa	Record daily precipitation	45.0 mm (1.8 in)	31 of 100 (Routine)
Elliot	South Africa	Record daily precipitation	45.2 mm (1.8 in)	31 of 100 (Routine)
Cengcane (Bos)	South Africa	Record daily precipitation	45.0 mm (1.8 in)	31 of 100 (Routine)
Port Blair	India	Record daily precipitation	78.9 mm (3.1 in)	30 of 100 (Routine)
Ibeka (Bos)	South Africa	Record daily precipitation	40.5 mm (1.6 in)	30 of 100 (Routine)
Ludington 4 SE	United States	Record low minimum temperature	-6.7 C (19.9 F)	30 of 100 (Routine)
Sallisaw 2 NW	United States	Record low maximum temperature	12.8 C (55.0 F)	30 of 100 (Routine)
Orlando Executive AP	United States	Record daily precipitation	45.2 mm (1.8 in)	30 of 100 (Routine)
Port Lincoln	Australia	Record high maximum temperature	33.9 C (93.0 F)	29 of 100 (Routine)
Georgetown Post Office	Australia	Record high minimum temperature	25.6 C (78.1 F)	29 of 100 (Routine)
Tbilisi	Georgia	Record high maximum temperature	31.1 C (88.0 F)	29 of 100 (Routine)
Hogsback (Bos)	South Africa	Record daily precipitation	71.5 mm (2.8 in)	29 of 100 (Routine)
Umtata	South Africa	Record daily precipitation	34.0 mm (1.3 in)	29 of 100 (Routine)
Flagstaff (Tnk)	South Africa	Record daily precipitation	39.5 mm (1.6 in)	29 of 100 (Routine)
Ione	United States	Record daily snowfall	5.1 cm (2.0 in)	29 of 100 (Routine)
San Jon	United States	Record low maximum temperature	6.7 C (44.1 F)	29 of 100 (Routine)
El Reno 1 N	United States	Record low maximum temperature	7.2 C (45.0 F)	29 of 100 (Routine)
Coleman	Canada	Record daily precipitation	27.9 mm (1.1 in)	28 of 100 (Routine)
Bamberg	Germany	Record low minimum temperature	-5.0 C (23.0 F)	28 of 100 (Routine)
Freiburg	Germany	Record low minimum temperature	-2.2 C (28.0 F)	28 of 100 (Routine)
Maclear (Mag)	South Africa	Record daily precipitation	49.5 mm (1.9 in)	28 of 100 (Routine)
Tarpon Spgs Sewage Plt	United States	Record daily precipitation	34.3 mm (1.4 in)	28 of 100 (Routine)
Ft Sumner	United States	Record low maximum temperature	8.3 C (46.9 F)	28 of 100 (Routine)
Gangarampur	India	Record daily precipitation	58.4 mm (2.3 in)	27 of 100 (Routine)
Manati 2 E	Puerto Rico [United States]	Record daily precipitation	33.0 mm (1.3 in)	27 of 100 (Routine)
Elliotdale (Tnk)	South Africa	Record daily precipitation	50.0 mm (2.0 in)	27 of 100 (Routine)
Marshall	United States	Record low maximum temperature	10.6 C (51.1 F)	27 of 100 (Routine)
Spavinaw	United States	Record low maximum temperature	10.0 C (50.0 F)	27 of 100 (Routine)
Port Lincoln	Australia	Record high minimum temperature	17.8 C (64.0 F)	26 of 100 (Routine)
Berlin (Sar)	South Africa	Record daily precipitation	50.0 mm (2.0 in)	26 of 100 (Routine)
Sebeni (Bos)	South Africa	Record daily precipitation	44.0 mm (1.7 in)	26 of 100 (Routine)
Fall Rvr Lake	United States	Record low maximum temperature	8.3 C (46.9 F)	26 of 100 (Routine)
Meeker 5 W	United States	Record low maximum temperature	9.4 C (48.9 F)	26 of 100 (Routine)

Counts by Type and Timescale

505 records

Records set or tied on 21 April 1959 by type: Highest daily maximum 20, Lowest daily maximum 144, Highest daily minimum 37, Lowest daily minimum 103, Heaviest daily rainfall 179, Heaviest daily snowfall 16, Deepest snow cover 6.

Records on 21 April 1959 by type
Record type	Records
Highest daily maximum	20
Lowest daily maximum	144
Highest daily minimum	37
Lowest daily minimum	103
Heaviest daily rainfall	179
Heaviest daily snowfall	16
Deepest snow cover	6

Records on 21 April 1959 by timescale: all-time 0, monthly 8, daily 497.

How Much Records Were Beaten By

419 broken records

Margins by which the 419 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 228.0. Ties are not counted.

Top 20 by Significance

21 April 1959

Top 20 records on 21 April 1959 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 April 1959	Engcobo (Tnk), ZA	daily rain	51.0 mm (2.0 in)	32.2 mm (1.3 in)	57 years	58 of 100 (Notable)
21 April 1959	Pio IX (Patrocinio), BR	daily rain	70.0 mm (2.8 in)	49.0 mm (1.9 in)	45 years	56 of 100 (Notable)
21 April 1959	Avoca, ZA	daily rain	57.5 mm (2.3 in)	29.8 mm (1.2 in)	69 years	55 of 100 (Notable)
21 April 1959	East London -Signal STN, ZA	daily rain	49.7 mm (2.0 in)	38.3 mm (1.5 in)	40 years	50 of 100 (Notable)
21 April 1959	Wolfridge (Bos), ZA	daily rain	133.0 mm (5.2 in)	73.8 mm (2.9 in)	16 years	50 of 100 (Notable)
21 April 1959	Basantpur, IN	daily rain	36.0 mm (1.4 in)	36.0 mm (1.4 in)	32 years	48 of 100 (Notable)
21 April 1959	Cornucopia, US	daily rain	46.7 mm (1.8 in)	25.1 mm (1.0 in)	37 years	47 of 100 (Notable)
21 April 1959	Baunsi, IN	daily rain	38.1 mm (1.5 in)	27.9 mm (1.1 in)	13 years	44 of 100 (Notable)
21 April 1959	Plant City, US	daily rain	47.5 mm (1.9 in)	33.8 mm (1.3 in)	58 years	43 of 100 (Notable)
21 April 1959	Kieskamahoek (Pol), ZA	daily rain	41.8 mm (1.6 in)	27.3 mm (1.1 in)	40 years	42 of 100 (Notable)
21 April 1959	Bencuti (Bos), ZA	daily rain	44.0 mm (1.7 in)	27.5 mm (1.1 in)	16 years	42 of 100 (Notable)
21 April 1959	Coleman, CA	daily snowfall	27.9 cm (11.0 in)	22.8 cm (9.0 in)	24 years	41 of 100 (Notable)
21 April 1959	Atmakur, IN	daily rain	39.6 mm (1.6 in)	35.3 mm (1.4 in)	48 years	41 of 100 (Notable)
21 April 1959	Grinnell 3 SW, US	daily snow depth	15.2 cm (6.0 in)	15.2 cm (6.0 in)	65 years	40 of 100 (Notable)
21 April 1959	Qacu (Bos), ZA	daily rain	41.5 mm (1.6 in)	11.0 mm (0.4 in)	67 years	39 of 100 (Notable)
21 April 1959	Amanzamnyama (Bos), ZA	daily rain	55.3 mm (2.2 in)	34.5 mm (1.4 in)	16 years	39 of 100 (Notable)
21 April 1959	Webster City, US	daily snowfall	12.7 cm (5.0 in)	11.4 cm (4.5 in)	32 years	37 of 100 (Notable)
21 April 1959	Baziya (Bos), ZA	monthly rain	64.0 mm (2.5 in)	3.0 mm (0.12 in)	55 years	34 of 100 (Routine)
21 April 1959	Oran-Hopital Militaire, DZ	daily low min	4.0 C (39.2 F)	2.0 C (3.6 F)	52 years	33 of 100 (Routine)
21 April 1959	Cata (Bos), ZA	daily rain	42.0 mm (1.7 in)	19.9 mm (0.8 in)	41 years	33 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 1959

Records set or tied on this calendar date in each year from 1793 to 1959. 1959 had 505 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	886
2024	754
2025	506
2026	853

Download the Data

Data for records on 1959-04-21: 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 50	410
50 to 100	6
100 to 150	1
150 to 200	1
200 to 250	1