Weather Records on 12 April 1963

518 weather records were set or tied worldwide on 12 April 1963. Highest significance: Calitzdorp Pol, ZA.

Key Facts for 12 April 1963

On 12 April 1963, 518 weather records were set or tied at long-record stations worldwide.
102 were record highs and 32 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 12 monthly and 506 daily.
Calitzdorp Pol set a daily record precipitation of 26.5 mm (1.0 in) on 12 April 1963.
Across 161 earlier years (1793 to 2026) the same calendar date averaged 502 records.

Record Map

518 stations

518 station records on 12 April 1963 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 April 1963: highest significance records shown on the map
Station	Country	Type	Value	Significance
Calitzdorp Pol	South Africa	Record daily precipitation	26.5 mm (1.0 in)	56 of 100 (Notable)
Hofmeyer (Mun)	South Africa	Record daily precipitation	56.0 mm (2.2 in)	56 of 100 (Notable)
Dunmurray	South Africa	Record daily precipitation	49.0 mm (1.9 in)	56 of 100 (Notable)
Guaratingueta	Brazil	Record daily precipitation	94.2 mm (3.7 in)	54 of 100 (Notable)
Debrecen Airport	Hungary	Record daily precipitation	34.0 mm (1.3 in)	54 of 100 (Notable)
Kayatnur	India	Record daily precipitation	76.6 mm (3.0 in)	53 of 100 (Notable)
Noenieput (Pol)	South Africa	Record daily precipitation	35.5 mm (1.4 in)	51 of 100 (Notable)
Upper Mattole	United States	Record daily precipitation	175.3 mm (6.9 in)	50 of 100 (Notable)
Tevredenheid	South Africa	Record daily precipitation	45.5 mm (1.8 in)	49 of 100 (Notable)
Chickballapur	India	Record daily precipitation	59.7 mm (2.4 in)	46 of 100 (Notable)
Swaelfontein	South Africa	Record daily precipitation	34.0 mm (1.3 in)	45 of 100 (Notable)
Kellerberrin	Australia	Record daily precipitation	25.9 mm (1.0 in)	44 of 100 (Notable)
Reddersburg (Pol)	South Africa	Record daily precipitation	38.5 mm (1.5 in)	44 of 100 (Notable)
Bunnawarra	Australia	Record daily precipitation	30.5 mm (1.2 in)	43 of 100 (Notable)
Ygnattering	Australia	Record daily precipitation	31.0 mm (1.2 in)	43 of 100 (Notable)
De Rust (Pol)	South Africa	Record daily precipitation	30.0 mm (1.2 in)	43 of 100 (Notable)
Roseburg Rgnl AP	United States	Record daily precipitation	25.1 mm (1.0 in)	43 of 100 (Notable)
Brakkies	South Africa	Record daily precipitation	47.5 mm (1.9 in)	42 of 100 (Notable)
Bloemfontein Airpor	South Africa	Record daily precipitation	44.9 mm (1.8 in)	42 of 100 (Notable)
Postmasburg	South Africa	Record daily precipitation	33.0 mm (1.3 in)	42 of 100 (Notable)
Manor Holme	South Africa	Record daily precipitation	29.2 mm (1.1 in)	41 of 100 (Notable)
Mahbubabad	India	Record daily precipitation	50.8 mm (2.0 in)	40 of 100 (Notable)
Brakboschpoort	South Africa	Record daily precipitation	37.2 mm (1.5 in)	40 of 100 (Notable)
Oranjerivier (Sar)	South Africa	Record daily precipitation	28.0 mm (1.1 in)	39 of 100 (Notable)
Kranshoek	South Africa	Record daily precipitation	41.9 mm (1.6 in)	39 of 100 (Notable)
Rpf 57 Mile	Australia	Record daily precipitation	33.0 mm (1.3 in)	37 of 100 (Notable)
Mundargi	India	Record daily precipitation	52.8 mm (2.1 in)	37 of 100 (Notable)
Wolhaarkop	South Africa	Record daily precipitation	38.5 mm (1.5 in)	37 of 100 (Notable)
Jammalamadugu	India	Record daily precipitation	31.0 mm (1.2 in)	36 of 100 (Notable)
Cyferfontein	South Africa	Record daily precipitation	36.4 mm (1.4 in)	36 of 100 (Notable)
Wonderboom	South Africa	Record daily precipitation	27.8 mm (1.1 in)	36 of 100 (Notable)
Laurieton (Elouera St)	Australia	Record daily precipitation	43.2 mm (1.7 in)	35 of 100 (Notable)
Koffiefontein (Pol)	South Africa	Record daily precipitation	30.0 mm (1.2 in)	35 of 100 (Notable)
Konnongorring	Australia	Record daily precipitation	26.7 mm (1.1 in)	34 of 100 (Routine)
Redwing	Australia	Record daily precipitation	25.1 mm (1.0 in)	34 of 100 (Routine)
Pulivendla	India	Record daily precipitation	46.0 mm (1.8 in)	34 of 100 (Routine)
Nandigama	India	Record daily precipitation	43.0 mm (1.7 in)	34 of 100 (Routine)
Tweespruit	South Africa	Record daily precipitation	32.5 mm (1.3 in)	34 of 100 (Routine)
Brookings	United States	Record daily precipitation	68.8 mm (2.7 in)	34 of 100 (Routine)
Belle Isle	Canada	Record daily snowfall	20.3 cm (8.0 in)	33 of 100 (Routine)
Gyshgy	Turkmenistan	Record high maximum temperature	37.4 C (99.3 F)	33 of 100 (Routine)
Crescent City 3 NNW	United States	Record daily precipitation	66.8 mm (2.6 in)	32 of 100 (Routine)
Lnai Culture & Heritage Ctr	United States	Record daily precipitation	35.1 mm (1.4 in)	32 of 100 (Routine)
Pianco	Brazil	Record daily precipitation	85.0 mm (3.3 in)	31 of 100 (Routine)
Tanakal(Tanakall)	India	Record daily precipitation	59.1 mm (2.3 in)	31 of 100 (Routine)
Convamore	South Africa	Record daily precipitation	40.5 mm (1.6 in)	31 of 100 (Routine)
Smythe	South Africa	Record daily precipitation	35.5 mm (1.4 in)	31 of 100 (Routine)
Bowgada	Australia	Record daily precipitation	28.2 mm (1.1 in)	30 of 100 (Routine)
Paulistana	Brazil	Record daily precipitation	25.4 mm (1.0 in)	30 of 100 (Routine)
Koup (Sar)	South Africa	Record daily precipitation	26.0 mm (1.0 in)	30 of 100 (Routine)
Cardonia	Australia	Record daily precipitation	28.4 mm (1.1 in)	29 of 100 (Routine)
Kadiri	India	Record daily precipitation	38.1 mm (1.5 in)	29 of 100 (Routine)
Mandya	India	Record daily precipitation	32.0 mm (1.3 in)	29 of 100 (Routine)
Rust-En-Vrede	South Africa	Record daily precipitation	34.0 mm (1.3 in)	29 of 100 (Routine)
Waterfall	South Africa	Record daily precipitation	31.5 mm (1.2 in)	29 of 100 (Routine)
Adamshoop	South Africa	Record daily precipitation	33.0 mm (1.3 in)	29 of 100 (Routine)
Kommissiepoort	South Africa	Record daily precipitation	38.0 mm (1.5 in)	29 of 100 (Routine)
Winkelman 6 S	United States	Record high maximum temperature	36.7 C (98.1 F)	29 of 100 (Routine)
Ft Wingate	United States	Record high minimum temperature	7.8 C (46.0 F)	29 of 100 (Routine)
Alice	United States	Record high maximum temperature	38.9 C (102.0 F)	29 of 100 (Routine)

Counts by Type and Timescale

518 records

Records set or tied on 12 April 1963 by type: Highest daily maximum 60, Lowest daily maximum 7, Highest daily minimum 42, Lowest daily minimum 25, Heaviest daily rainfall 379, Heaviest daily snowfall 5.

Records on 12 April 1963 by type
Record type	Records
Highest daily maximum	60
Lowest daily maximum	7
Highest daily minimum	42
Lowest daily minimum	25
Heaviest daily rainfall	379
Heaviest daily snowfall	5
Deepest snow cover	0

Records on 12 April 1963 by timescale: all-time 0, monthly 12, daily 506.

How Much Records Were Beaten By

469 broken records

Margins by which the 469 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 139.0. Ties are not counted.

Top 20 by Significance

12 April 1963

Top 20 records on 12 April 1963 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 April 1963	Calitzdorp Pol, ZA	daily rain	26.5 mm (1.0 in)	19.6 mm (0.8 in)	84 years	56 of 100 (Notable)
12 April 1963	Hofmeyer (Mun), ZA	monthly rain	56.0 mm (2.2 in)	25.5 mm (1.0 in)	8 years	56 of 100 (Notable)
12 April 1963	Dunmurray, ZA	daily rain	49.0 mm (1.9 in)	39.6 mm (1.6 in)	36 years	56 of 100 (Notable)
12 April 1963	Guaratingueta, BR	monthly rain	94.2 mm (3.7 in)	33.6 mm (1.3 in)	12 years	54 of 100 (Notable)
12 April 1963	Debrecen Airport, HU	daily rain	34.0 mm (1.3 in)	21.4 mm (0.8 in)	26 years	54 of 100 (Notable)
12 April 1963	Kayatnur, IN	daily rain	76.6 mm (3.0 in)	57.0 mm (2.2 in)	34 years	53 of 100 (Notable)
12 April 1963	Noenieput (Pol), ZA	daily rain	35.5 mm (1.4 in)	35.5 mm (1.4 in)	32 years	51 of 100 (Notable)
12 April 1963	Upper Mattole, US	monthly rain	175.3 mm (6.9 in)	54.6 mm (2.1 in)	7 years	50 of 100 (Notable)
12 April 1963	Tevredenheid, ZA	daily rain	45.5 mm (1.8 in)	31.5 mm (1.2 in)	48 years	49 of 100 (Notable)
12 April 1963	Chickballapur, IN	daily rain	59.7 mm (2.4 in)	34.8 mm (1.4 in)	56 years	46 of 100 (Notable)
12 April 1963	Swaelfontein, ZA	daily rain	34.0 mm (1.3 in)	25.1 mm (1.0 in)	28 years	45 of 100 (Notable)
12 April 1963	Kellerberrin, AU	daily rain	25.9 mm (1.0 in)	16.0 mm (0.6 in)	53 years	44 of 100 (Notable)
12 April 1963	Reddersburg (Pol), ZA	daily rain	38.5 mm (1.5 in)	26.8 mm (1.1 in)	36 years	44 of 100 (Notable)
12 April 1963	Bunnawarra, AU	daily rain	30.5 mm (1.2 in)	23.4 mm (0.9 in)	32 years	43 of 100 (Notable)
12 April 1963	Ygnattering, AU	daily rain	31.0 mm (1.2 in)	27.2 mm (1.1 in)	12 years	43 of 100 (Notable)
12 April 1963	De Rust (Pol), ZA	daily rain	30.0 mm (1.2 in)	22.9 mm (0.9 in)	20 years	43 of 100 (Notable)
12 April 1963	Roseburg Rgnl AP, US	daily rain	25.1 mm (1.0 in)	9.4 mm (0.37 in)	62 years	43 of 100 (Notable)
12 April 1963	Brakkies, ZA	daily rain	47.5 mm (1.9 in)	41.1 mm (1.6 in)	12 years	42 of 100 (Notable)
12 April 1963	Bloemfontein Airpor, ZA	daily rain	44.9 mm (1.8 in)	27.1 mm (1.1 in)	40 years	42 of 100 (Notable)
12 April 1963	Postmasburg, ZA	daily rain	33.0 mm (1.3 in)	24.6 mm (1.0 in)	40 years	42 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 1963

Records set or tied on this calendar date in each year from 1793 to 1963. 1963 had 518 records.

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

Records on 04-12 in each year
Year	Records
1793	1
1805	1
1810	1
1812	2
1817	2
1826	1
1831	1
1845	1
1850	1
1854	1
1865	2
1866	2
1868	4
1869	5
1871	1
1873	1
1874	5
1876	2
1877	1
1878	1
1879	4
1881	1
1882	1
1885	2
1889	4
1890	10
1891	3
1892	2
1893	4
1894	1
1895	1
1896	1
1897	4
1898	4
1899	5
1900	6
1901	5
1902	3
1903	10
1904	11
1905	19
1906	24
1907	5
1908	10
1909	16
1910	15
1911	26
1912	48
1913	88
1914	41
1915	125
1916	37
1917	33
1918	40
1919	39
1920	148
1921	34
1922	48
1923	134
1924	69
1925	178
1926	347
1927	179
1928	145
1929	141
1930	638
1931	267
1932	253
1933	551
1934	531
1935	171
1936	277
1937	236
1938	175
1939	1,174
1940	1,407
1941	869
1942	191
1943	614
1944	423
1945	884
1946	347
1947	733
1948	1,496
1949	358
1950	638
1951	1,102
1952	455
1953	707
1954	424
1955	611
1956	382
1957	910
1958	542
1959	513
1960	314
1961	551
1962	510
1963	518
1964	363
1965	659
1966	520
1967	682
1968	717
1969	352
1970	568
1971	587
1972	1,316
1973	903
1974	822
1975	704
1976	1,076
1977	1,069
1978	533
1979	1,096
1980	611
1981	1,068
1982	852
1983	877
1984	671
1985	734
1986	1,350
1987	606
1988	1,369
1989	1,838
1990	946
1991	1,484
1992	1,000
1993	586
1994	1,375
1995	1,173
1996	994
1997	3,094
1998	1,409
1999	873
2000	784
2001	1,369
2002	600
2003	1,079
2004	964
2005	536
2006	796
2007	1,144
2008	1,015
2009	811
2010	935
2011	1,026
2012	666
2013	1,039
2014	597
2015	504
2016	595
2017	519
2018	868
2019	685
2020	1,150
2021	710
2022	1,862
2023	1,262
2024	1,086
2025	1,281
2026	622

Download the Data

Data for records on 1963-04-12: 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	420
20 to 40	43
40 to 60	5
60 to 80	0
80 to 100	0
100 to 120	0
120 to 140	1