Weather Records on 17 April 1963

702 weather records were set or tied worldwide on 17 April 1963. Highest significance: Brumado, BR.

Key Facts for 17 April 1963

On 17 April 1963, 702 weather records were set or tied at long-record stations worldwide.
286 were record highs and 240 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 12 monthly and 689 daily.
Brumado set a daily record precipitation of 73.2 mm (2.9 in) on 17 April 1963.
Across 166 earlier years (1799 to 2026) the same calendar date averaged 451 records.

Record Map

702 stations

702 station records on 17 April 1963 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 April 1963: highest significance records shown on the map
Station	Country	Type	Value	Significance
Brumado	Brazil	Record daily precipitation	73.2 mm (2.9 in)	60 of 100 (Major)
Mtn View 91	United States	Record daily precipitation	210.1 mm (8.3 in)	56 of 100 (Notable)
Honokane 181.1	United States	Record daily precipitation	166.6 mm (6.6 in)	55 of 100 (Notable)
Pahala 21	United States	Record daily precipitation	137.2 mm (5.4 in)	55 of 100 (Notable)
Kaneohe Mauka 781	United States	Record daily precipitation	226.1 mm (8.9 in)	53 of 100 (Notable)
Pahoa 65	United States	Record daily precipitation	160.3 mm (6.3 in)	50 of 100 (Notable)
Papaikou 144.1	United States	Record daily precipitation	156.0 mm (6.1 in)	44 of 100 (Notable)
Port Stanley	Canada	Record daily precipitation	30.0 mm (1.2 in)	43 of 100 (Notable)
Pioche	United States	Record daily snowfall	9.1 cm (3.6 in)	42 of 100 (Notable)
Ochoco Rs	United States	Record daily snowfall	12.7 cm (5.0 in)	39 of 100 (Notable)
Naalehu 14	United States	Record daily precipitation	92.5 mm (3.6 in)	38 of 100 (Notable)
Norsk	Russia	Record daily precipitation	26.0 mm (1.0 in)	37 of 100 (Notable)
Dayville	United States	Record daily snowfall	6.4 cm (2.5 in)	37 of 100 (Notable)
Jacobina	Brazil	Record daily precipitation	53.1 mm (2.1 in)	36 of 100 (Notable)
Mackinaw City 2	United States	Record high minimum temperature	10.6 C (51.1 F)	36 of 100 (Notable)
Melbourne Regional Office	Australia	Record low minimum temperature	4.6 C (40.3 F)	35 of 100 (Notable)
Orderville	United States	Record daily snowfall	7.6 cm (3.0 in)	35 of 100 (Notable)
Tura	India	Record daily precipitation	168.1 mm (6.6 in)	33 of 100 (Routine)
Paducah	United States	Record high minimum temperature	20.6 C (69.1 F)	33 of 100 (Routine)
Ukiah	United States	Record daily snowfall	8.9 cm (3.5 in)	33 of 100 (Routine)
Bulwater	South Africa	Record daily precipitation	25.0 mm (1.0 in)	32 of 100 (Routine)
Shillong	India	Record daily precipitation	35.6 mm (1.4 in)	31 of 100 (Routine)
Ft Bidwell	United States	Record low maximum temperature	3.3 C (37.9 F)	31 of 100 (Routine)
Oakley	United States	Record low maximum temperature	2.2 C (36.0 F)	31 of 100 (Routine)
Carson City	United States	Record low minimum temperature	-9.4 C (15.1 F)	31 of 100 (Routine)
Cedarville	United States	Record daily snowfall	7.6 cm (3.0 in)	30 of 100 (Routine)
Mt Vernon 3 NE	United States	Record high minimum temperature	18.3 C (64.9 F)	30 of 100 (Routine)
Lebanon 2W	United States	Record high minimum temperature	18.9 C (66.0 F)	30 of 100 (Routine)
Mt Vernon 3 SW	United States	Record high minimum temperature	18.3 C (64.9 F)	30 of 100 (Routine)
Stillwater 2 W	United States	Record high minimum temperature	20.0 C (68.0 F)	30 of 100 (Routine)
Thermopolis	United States	Record low minimum temperature	-9.4 C (15.1 F)	30 of 100 (Routine)
Ramos Arizpe (Smn)	Mexico	Record high minimum temperature	18.9 C (66.0 F)	29 of 100 (Routine)
Bliss 4 NW	United States	Record low maximum temperature	8.3 C (46.9 F)	29 of 100 (Routine)
Albion	United States	Record high minimum temperature	17.8 C (64.0 F)	29 of 100 (Routine)
Flora 5 NW	United States	Record high minimum temperature	17.2 C (63.0 F)	29 of 100 (Routine)
Houston	United States	Record high minimum temperature	18.3 C (64.9 F)	29 of 100 (Routine)
Conrad	United States	Record daily snowfall	5.1 cm (2.0 in)	29 of 100 (Routine)
Fillmore	United States	Record snow depth	15.2 cm (6.0 in)	29 of 100 (Routine)
Sunnyside	United States	Record low maximum temperature	12.8 C (55.0 F)	29 of 100 (Routine)
Rantoul	United States	Record high minimum temperature	15.6 C (60.1 F)	29 of 100 (Routine)
Victoria Sugar Mill	Australia	Record daily precipitation	27.9 mm (1.1 in)	28 of 100 (Routine)
Patamute	Brazil	Record daily precipitation	101.5 mm (4.0 in)	28 of 100 (Routine)
Guerrero (Smn)	Mexico	Record high minimum temperature	8.9 C (48.0 F)	28 of 100 (Routine)
Yates Ctr	United States	Record high minimum temperature	21.1 C (70.0 F)	28 of 100 (Routine)
Brunswick	United States	Record high minimum temperature	20.0 C (68.0 F)	28 of 100 (Routine)
Dayton Mcd	United States	Record high minimum temperature	16.7 C (62.1 F)	28 of 100 (Routine)
Weatherford	United States	Record high minimum temperature	20.0 C (68.0 F)	28 of 100 (Routine)
Corvallis State UNIV	United States	Record low maximum temperature	8.9 C (48.0 F)	28 of 100 (Routine)
Cordova AP	United States	Record low minimum temperature	-13.9 C (7.0 F)	28 of 100 (Routine)
Poco Preto (Dae) E2-004	Brazil	Record daily precipitation	79.4 mm (3.1 in)	27 of 100 (Routine)
Jequie	Brazil	Record daily precipitation	52.0 mm (2.0 in)	27 of 100 (Routine)
Vantipura	India	Record daily precipitation	28.4 mm (1.1 in)	27 of 100 (Routine)
Santa Paula	United States	Record low maximum temperature	17.2 C (63.0 F)	27 of 100 (Routine)
Chicago Midway AP 3SW	United States	Record daily precipitation	27.9 mm (1.1 in)	27 of 100 (Routine)
Griggsville	United States	Record high maximum temperature	30.6 C (87.1 F)	27 of 100 (Routine)
Tuscola	United States	Record high maximum temperature	29.4 C (84.9 F)	27 of 100 (Routine)
Rockville	United States	Record high minimum temperature	16.7 C (62.1 F)	27 of 100 (Routine)
Columbus	United States	Record high minimum temperature	20.0 C (68.0 F)	27 of 100 (Routine)
Council Grove	United States	Record high minimum temperature	20.0 C (68.0 F)	27 of 100 (Routine)
Fayette	United States	Record high minimum temperature	19.4 C (66.9 F)	27 of 100 (Routine)

Counts by Type and Timescale

702 records

Records set or tied on 17 April 1963 by type: Highest daily maximum 60, Lowest daily maximum 162, Highest daily minimum 226, Lowest daily minimum 78, Heaviest daily rainfall 133, Heaviest daily snowfall 34, Deepest snow cover 9.

Records on 17 April 1963 by type
Record type	Records
Highest daily maximum	60
Lowest daily maximum	162
Highest daily minimum	226
Lowest daily minimum	78
Heaviest daily rainfall	133
Heaviest daily snowfall	34
Deepest snow cover	9

Records on 17 April 1963 by timescale: all-time 1, monthly 12, daily 689.

How Much Records Were Beaten By

544 broken records

Margins by which the 544 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 152.0. Ties are not counted.

Top 20 by Significance

17 April 1963

Top 20 records on 17 April 1963 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 April 1963	Brumado, BR	daily rain	73.2 mm (2.9 in)	58.5 mm (2.3 in)	50 years	60 of 100 (Major)
17 April 1963	Mtn View 91, US	daily rain	210.1 mm (8.3 in)	111.0 mm (4.4 in)	37 years	56 of 100 (Notable)
17 April 1963	Honokane 181.1, US	daily rain	166.6 mm (6.6 in)	107.7 mm (4.2 in)	37 years	55 of 100 (Notable)
17 April 1963	Pahala 21, US	daily rain	137.2 mm (5.4 in)	113.8 mm (4.5 in)	36 years	55 of 100 (Notable)
17 April 1963	Kaneohe Mauka 781, US	monthly rain	226.1 mm (8.9 in)	67.3 mm (2.6 in)	0 years	53 of 100 (Notable)
17 April 1963	Pahoa 65, US	daily rain	160.3 mm (6.3 in)	98.6 mm (3.9 in)	18 years	50 of 100 (Notable)
17 April 1963	Papaikou 144.1, US	daily rain	156.0 mm (6.1 in)	56.9 mm (2.2 in)	50 years	44 of 100 (Notable)
17 April 1963	Port Stanley, CA	daily rain	30.0 mm (1.2 in)	13.7 mm (0.5 in)	44 years	43 of 100 (Notable)
17 April 1963	Pioche, US	daily snowfall	9.1 cm (3.6 in)	8.6 cm (3.4 in)	71 years	42 of 100 (Notable)
17 April 1963	Ochoco Rs, US	daily snowfall	12.7 cm (5.0 in)	9.9 cm (3.9 in)	21 years	39 of 100 (Notable)
17 April 1963	Naalehu 14, US	daily rain	92.5 mm (3.6 in)	49.1 mm (1.9 in)	6 years	38 of 100 (Notable)
17 April 1963	Norsk, RU	monthly rain	26.0 mm (1.0 in)	7.4 mm (0.29 in)	14 years	37 of 100 (Notable)
17 April 1963	Dayville, US	daily snowfall	6.4 cm (2.5 in)	6.4 cm (2.5 in)	65 years	37 of 100 (Notable)
17 April 1963	Jacobina, BR	daily rain	53.1 mm (2.1 in)	24.0 mm (0.9 in)	36 years	36 of 100 (Notable)
17 April 1963	Mackinaw City 2, US	daily high min	10.6 C (51.1 F)	5.0 C (9.0 F)	61 years	36 of 100 (Notable)
17 April 1963	Melbourne Regional Office, AU	daily low min	4.6 C (40.3 F)	0.4 C (0.7 F)	81 years	35 of 100 (Notable)
17 April 1963	Orderville, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	52 years	35 of 100 (Notable)
17 April 1963	Tura, IN	monthly rain	168.1 mm (6.6 in)	19.3 mm (0.8 in)	26 years	33 of 100 (Routine)
17 April 1963	Paducah, US	daily high min	20.6 C (69.1 F)	3.4 C (6.1 F)	66 years	33 of 100 (Routine)
17 April 1963	Ukiah, US	daily snowfall	8.9 cm (3.5 in)	8.9 cm (3.5 in)	40 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

1799 to 1963

Records set or tied on this calendar date in each year from 1799 to 1963. 1963 had 702 records.

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

Records on 04-17 in each year
Year	Records
1799	1
1807	1
1808	1
1815	1
1817	1
1818	1
1819	1
1823	1
1825	1
1830	1
1835	3
1837	1
1845	1
1847	2
1851	1
1852	3
1853	1
1854	1
1855	1
1857	1
1858	1
1862	1
1865	2
1868	1
1873	4
1874	1
1875	3
1877	4
1878	2
1880	2
1889	1
1890	2
1891	2
1892	4
1894	5
1895	1
1896	5
1897	6
1898	3
1899	1
1900	2
1901	4
1902	4
1903	5
1904	19
1905	11
1906	14
1907	16
1908	38
1909	7
1910	29
1911	33
1912	27
1913	20
1914	83
1915	30
1916	30
1917	32
1918	35
1919	39
1920	87
1921	148
1922	96
1923	71
1924	74
1925	103
1926	140
1927	256
1928	308
1929	145
1930	238
1931	216
1932	615
1933	261
1934	234
1935	374
1936	308
1937	439
1938	564
1939	618
1940	337
1941	460
1942	415
1943	285
1944	334
1945	475
1946	492
1947	461
1948	622
1949	439
1950	293
1951	441
1952	529
1953	818
1954	650
1955	394
1956	486
1957	277
1958	702
1959	434
1960	553
1961	667
1962	597
1963	702
1964	766
1965	411
1966	409
1967	935
1968	745
1969	728
1970	547
1971	924
1972	546
1973	589
1974	244
1975	666
1976	1,630
1977	906
1978	620
1979	810
1980	675
1981	621
1982	965
1983	1,365
1984	720
1985	917
1986	997
1987	960
1988	1,082
1989	638
1990	1,065
1991	614
1992	1,105
1993	847
1994	1,047
1995	1,211
1996	1,044
1997	889
1998	1,795
1999	1,730
2000	1,082
2001	1,013
2002	2,284
2003	1,037
2004	761
2005	572
2006	1,430
2007	863
2008	842
2009	779
2010	606
2011	982
2012	920
2013	1,796
2014	913
2015	813
2016	977
2017	469
2018	1,585
2019	458
2020	1,165
2021	701
2022	831
2023	628
2024	690
2025	1,058
2026	838

Download the Data

Data for records on 1963-04-17: 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	498
20 to 40	20
40 to 60	12
60 to 80	5
80 to 100	4
100 to 120	4
120 to 140	0
140 to 160	1