Weather Records on 15 April 1963

714 weather records were set or tied worldwide on 15 April 1963. Highest significance: Mataranka Homestead Resort, AU.

Key Facts for 15 April 1963

On 15 April 1963, 714 weather records were set or tied at long-record stations worldwide.
365 were record highs and 71 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 19 monthly and 694 daily.
Mataranka Homestead Resort set an all-time record daily precipitation of 247.1 mm (9.7 in) on 15 April 1963.
Across 159 earlier years (1801 to 2026) the same calendar date averaged 492 records.

Record Map

714 stations

714 station records on 15 April 1963 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 April 1963: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mataranka Homestead Resort	Australia	Record daily precipitation	247.1 mm (9.7 in)	77 of 100 (Major)
Sendamangalam	India	Record daily precipitation	76.0 mm (3.0 in)	62 of 100 (Major)
Halaula 1110	United States	Record daily precipitation	99.6 mm (3.9 in)	62 of 100 (Major)
Pithoragarh	India	Record daily precipitation	44.5 mm (1.8 in)	54 of 100 (Notable)
Pahala 21	United States	Record daily precipitation	133.9 mm (5.3 in)	51 of 100 (Notable)
Winnemucca AP	United States	Record daily snowfall	8.1 cm (3.2 in)	48 of 100 (Notable)
Colagaon	India	Record daily precipitation	48.0 mm (1.9 in)	47 of 100 (Notable)
Ash Mtn	United States	Record daily precipitation	55.1 mm (2.2 in)	47 of 100 (Notable)
Holualoa Beach 68	United States	Record daily precipitation	43.4 mm (1.7 in)	47 of 100 (Notable)
Ngukurr	Australia	Record daily precipitation	238.8 mm (9.4 in)	46 of 100 (Notable)
Friant Government Camp	United States	Record daily precipitation	25.9 mm (1.0 in)	46 of 100 (Notable)
Klamath Falls 2 SSW	United States	Record daily snowfall	12.7 cm (5.0 in)	46 of 100 (Notable)
Cape Otway Lighthouse	Australia	Record low minimum temperature	3.9 C (39.0 F)	45 of 100 (Notable)
Macklin	Canada	Record daily precipitation	52.1 mm (2.1 in)	45 of 100 (Notable)
Rosetown Cda Epf	Canada	Record daily precipitation	27.9 mm (1.1 in)	45 of 100 (Notable)
Canyon Dam	United States	Record daily snowfall	25.4 cm (10.0 in)	44 of 100 (Notable)
Araria	India	Record daily precipitation	63.0 mm (2.5 in)	43 of 100 (Notable)
Boras	Sweden	Record daily precipitation	25.2 mm (1.0 in)	43 of 100 (Notable)
Keno	United States	Record daily snowfall	15.2 cm (6.0 in)	43 of 100 (Notable)
Perumbalur	India	Record daily precipitation	61.4 mm (2.4 in)	42 of 100 (Notable)
Pahoa 65	United States	Record daily precipitation	137.7 mm (5.4 in)	42 of 100 (Notable)
Rosera	India	Record daily precipitation	53.3 mm (2.1 in)	41 of 100 (Notable)
Mongpoo	India	Record daily precipitation	117.6 mm (4.6 in)	41 of 100 (Notable)
Kalimpong Obsy Sr	India	Record daily precipitation	48.0 mm (1.9 in)	39 of 100 (Notable)
Cedarville	United States	Record daily snowfall	7.6 cm (3.0 in)	39 of 100 (Notable)
Glenwood Spgs #2	United States	Record high minimum temperature	10.6 C (51.1 F)	39 of 100 (Notable)
Regina Int'l A	Canada	Record high minimum temperature	10.6 C (51.1 F)	38 of 100 (Notable)
Krishnanagar	India	Record daily precipitation	65.0 mm (2.6 in)	38 of 100 (Notable)
Palhano	Brazil	Record daily precipitation	46.2 mm (1.8 in)	37 of 100 (Notable)
Uppiliyapuram	India	Record daily precipitation	38.0 mm (1.5 in)	37 of 100 (Notable)
Lihue 1020	United States	Record daily precipitation	74.4 mm (2.9 in)	37 of 100 (Notable)
Joe Rich Creek	Canada	Record daily snowfall	11.4 cm (4.5 in)	35 of 100 (Notable)
Kayatnur	India	Record daily precipitation	48.0 mm (1.9 in)	35 of 100 (Notable)
Olinda #1 332	United States	Record daily precipitation	57.7 mm (2.3 in)	34 of 100 (Routine)
Jainagar	India	Record daily precipitation	31.4 mm (1.2 in)	33 of 100 (Routine)
Giant Forest	United States	Record daily precipitation	63.5 mm (2.5 in)	33 of 100 (Routine)
Turaiyur	India	Record daily precipitation	72.4 mm (2.9 in)	32 of 100 (Routine)
Bowman Dam	United States	Record daily snowfall	38.1 cm (15.0 in)	32 of 100 (Routine)
Rifle	United States	Record high minimum temperature	11.1 C (52.0 F)	32 of 100 (Routine)
Chiloquin 1 E	United States	Record daily snowfall	5.1 cm (2.0 in)	32 of 100 (Routine)
University Exp STN	United States	Record daily snowfall	7.9 cm (3.1 in)	32 of 100 (Routine)
Red Lodge	United States	Record high minimum temperature	8.3 C (46.9 F)	31 of 100 (Routine)
Mountainair	United States	Record high minimum temperature	17.2 C (63.0 F)	31 of 100 (Routine)
Brickhouse	Australia	Record daily precipitation	25.7 mm (1.0 in)	30 of 100 (Routine)
Rocky Ford 2 SE	United States	Record high minimum temperature	12.2 C (54.0 F)	30 of 100 (Routine)
Ness City	United States	Record high maximum temperature	35.0 C (95.0 F)	30 of 100 (Routine)
Chinook	United States	Record high minimum temperature	12.2 C (54.0 F)	30 of 100 (Routine)
Sundance	United States	Record high minimum temperature	9.4 C (48.9 F)	30 of 100 (Routine)
Fairbanks Intl AP	United States	Record daily snowfall	7.1 cm (2.8 in)	30 of 100 (Routine)
Kulasekaram	India	Record daily precipitation	70.0 mm (2.8 in)	29 of 100 (Routine)
Iowa Hill	United States	Record daily precipitation	30.7 mm (1.2 in)	29 of 100 (Routine)
Hoxie	United States	Record high maximum temperature	33.9 C (93.0 F)	29 of 100 (Routine)
Lakin	United States	Record high maximum temperature	33.9 C (93.0 F)	29 of 100 (Routine)
Portales	United States	Record high minimum temperature	15.6 C (60.1 F)	29 of 100 (Routine)
Prospect 2 SW	United States	Record daily snowfall	12.7 cm (5.0 in)	29 of 100 (Routine)
Koolau Dam 833	United States	Record daily precipitation	76.2 mm (3.0 in)	29 of 100 (Routine)
Twin Lakes	United States	Record daily snowfall	48.3 cm (19.0 in)	28 of 100 (Routine)
Wray	United States	Record high maximum temperature	32.2 C (90.0 F)	28 of 100 (Routine)
Medicine Lake 3 SE	United States	Record high minimum temperature	12.2 C (54.0 F)	28 of 100 (Routine)
Hettinger	United States	Record high minimum temperature	12.2 C (54.0 F)	28 of 100 (Routine)

Counts by Type and Timescale

714 records

Records set or tied on 15 April 1963 by type: Highest daily maximum 121, Lowest daily maximum 49, Highest daily minimum 244, Lowest daily minimum 22, Heaviest daily rainfall 234, Heaviest daily snowfall 40, Deepest snow cover 4.

Records on 15 April 1963 by type
Record type	Records
Highest daily maximum	121
Lowest daily maximum	49
Highest daily minimum	244
Lowest daily minimum	22
Heaviest daily rainfall	234
Heaviest daily snowfall	40
Deepest snow cover	4

Records on 15 April 1963 by timescale: all-time 1, monthly 19, daily 694.

How Much Records Were Beaten By

584 broken records

Margins by which the 584 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 229.0. Ties are not counted.

Top 20 by Significance

15 April 1963

Top 20 records on 15 April 1963 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 April 1963	Mataranka Homestead Resort, AU	all-time rain	247.1 mm (9.7 in)	66.8 mm (2.6 in)	45 years	77 of 100 (Major)
15 April 1963	Sendamangalam, IN	daily rain	76.0 mm (3.0 in)	58.7 mm (2.3 in)	54 years	62 of 100 (Major)
15 April 1963	Halaula 1110, US	daily rain	99.6 mm (3.9 in)	71.7 mm (2.8 in)	57 years	62 of 100 (Major)
15 April 1963	Pithoragarh, IN	daily rain	44.5 mm (1.8 in)	28.0 mm (1.1 in)	28 years	54 of 100 (Notable)
15 April 1963	Pahala 21, US	daily rain	133.9 mm (5.3 in)	86.7 mm (3.4 in)	20 years	51 of 100 (Notable)
15 April 1963	Winnemucca AP, US	daily snowfall	8.1 cm (3.2 in)	7.6 cm (3.0 in)	49 years	48 of 100 (Notable)
15 April 1963	Colagaon, IN	daily rain	48.0 mm (1.9 in)	41.6 mm (1.6 in)	56 years	47 of 100 (Notable)
15 April 1963	Ash Mtn, US	daily rain	55.1 mm (2.2 in)	46.5 mm (1.8 in)	28 years	47 of 100 (Notable)
15 April 1963	Holualoa Beach 68, US	daily rain	43.4 mm (1.7 in)	33.0 mm (1.3 in)	28 years	47 of 100 (Notable)
15 April 1963	Ngukurr, AU	daily rain	238.8 mm (9.4 in)	213.9 mm (8.4 in)	4 years	46 of 100 (Notable)
15 April 1963	Friant Government Camp, US	daily rain	25.9 mm (1.0 in)	19.5 mm (0.8 in)	49 years	46 of 100 (Notable)
15 April 1963	Klamath Falls 2 SSW, US	daily snowfall	12.7 cm (5.0 in)	10.2 cm (4.0 in)	42 years	46 of 100 (Notable)
15 April 1963	Cape Otway Lighthouse, AU	daily low min	3.9 C (39.0 F)	1.7 C (3.1 F)	95 years	45 of 100 (Notable)
15 April 1963	Macklin, CA	monthly rain	52.1 mm (2.1 in)	11.5 mm (0.5 in)	42 years	45 of 100 (Notable)
15 April 1963	Rosetown Cda Epf, CA	daily rain	27.9 mm (1.1 in)	17.2 mm (0.7 in)	32 years	45 of 100 (Notable)
15 April 1963	Canyon Dam, US	daily snowfall	25.4 cm (10.0 in)	22.9 cm (9.0 in)	45 years	44 of 100 (Notable)
15 April 1963	Araria, IN	daily rain	63.0 mm (2.5 in)	46.7 mm (1.8 in)	20 years	43 of 100 (Notable)
15 April 1963	Boras, SE	daily rain	25.2 mm (1.0 in)	11.7 mm (0.5 in)	38 years	43 of 100 (Notable)
15 April 1963	Keno, US	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	34 years	43 of 100 (Notable)
15 April 1963	Perumbalur, IN	daily rain	61.4 mm (2.4 in)	44.4 mm (1.7 in)	52 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

1801 to 1963

Records set or tied on this calendar date in each year from 1801 to 1963. 1963 had 714 records.

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

Records on 04-15 in each year
Year	Records
1801	1
1817	1
1820	1
1844	1
1845	1
1847	1
1849	1
1853	2
1855	2
1858	1
1862	3
1865	3
1866	1
1868	1
1869	2
1873	1
1874	1
1876	1
1880	1
1882	1
1885	3
1886	1
1887	3
1889	2
1890	3
1891	2
1892	8
1893	2
1894	1
1896	2
1897	1
1898	2
1899	4
1900	9
1901	2
1902	4
1903	8
1904	39
1905	11
1906	20
1907	18
1908	15
1909	18
1910	16
1911	20
1912	24
1913	39
1914	17
1915	13
1916	15
1917	35
1918	40
1919	22
1920	50
1921	59
1922	94
1923	178
1924	172
1925	168
1926	453
1927	321
1928	631
1929	91
1930	289
1931	388
1932	150
1933	300
1934	339
1935	515
1936	439
1937	277
1938	596
1939	789
1940	581
1941	628
1942	525
1943	1,037
1944	313
1945	783
1946	245
1947	532
1948	306
1949	419
1950	568
1951	504
1952	357
1953	475
1954	896
1955	484
1956	750
1957	378
1958	458
1959	314
1960	319
1961	877
1962	733
1963	714
1964	382
1965	504
1966	464
1967	599
1968	476
1969	555
1970	841
1971	640
1972	896
1973	667
1974	385
1975	780
1976	1,566
1977	649
1978	426
1979	370
1980	1,066
1981	724
1982	955
1983	1,343
1984	612
1985	788
1986	1,140
1987	579
1988	839
1989	836
1990	837
1991	769
1992	783
1993	1,156
1994	835
1995	805
1996	1,173
1997	1,031
1998	1,752
1999	1,249
2000	1,163
2001	1,043
2002	1,866
2003	1,760
2004	761
2005	583
2006	1,637
2007	1,776
2008	1,157
2009	853
2010	804
2011	1,162
2012	1,007
2013	1,146
2014	1,721
2015	739
2016	602
2017	474
2018	1,913
2019	610
2020	1,068
2021	494
2022	1,145
2023	912
2024	1,096
2025	860
2026	1,118

Download the Data

Data for records on 1963-04-15: 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 50	559
50 to 100	14
100 to 150	6
150 to 200	3
200 to 250	2