Weather Records on 30 June 1963

560 weather records were set or tied worldwide on 30 June 1963. Highest significance: Den Helder-1, NL.

Key Facts for 30 June 1963

On 30 June 1963, 560 weather records were set or tied at long-record stations worldwide.
185 were record highs and 108 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 21 monthly and 539 daily.
Den Helder-1 set a daily record precipitation of 25.7 mm (1.0 in) on 30 June 1963.
Across 160 earlier years (1826 to 2026) the same calendar date averaged 449 records.

Record Map

560 stations

560 station records on 30 June 1963 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 June 1963: highest significance records shown on the map
Station	Country	Type	Value	Significance
Den Helder-1	Netherlands	Record daily precipitation	25.7 mm (1.0 in)	57 of 100 (Notable)
Tupper Lake Sunmount	United States	Record daily precipitation	57.9 mm (2.3 in)	56 of 100 (Notable)
Steinkopf (Pol)	South Africa	Record daily precipitation	54.0 mm (2.1 in)	54 of 100 (Notable)
Beauceville	Canada	Record daily precipitation	65.8 mm (2.6 in)	53 of 100 (Notable)
Mount Narryer	Australia	Record daily precipitation	25.4 mm (1.0 in)	52 of 100 (Notable)
Tanana AP	United States	Record daily precipitation	32.5 mm (1.3 in)	49 of 100 (Notable)
Mountainair	United States	Record high minimum temperature	24.4 C (75.9 F)	44 of 100 (Notable)
Itaporanga Dajuda	Brazil	Record daily precipitation	52.3 mm (2.1 in)	41 of 100 (Notable)
Mahespur	India	Record daily precipitation	89.3 mm (3.5 in)	41 of 100 (Notable)
Wooramel	Australia	Record daily precipitation	32.0 mm (1.3 in)	40 of 100 (Notable)
Amarpara	India	Record daily precipitation	161.3 mm (6.4 in)	40 of 100 (Notable)
Lockport 2SE	United States	Record high maximum temperature	35.6 C (96.1 F)	36 of 100 (Notable)
Durham	Canada	Record high maximum temperature	32.2 C (90.0 F)	34 of 100 (Routine)
Pakur	India	Record daily precipitation	82.0 mm (3.2 in)	32 of 100 (Routine)
Lufkin Angelina Co AP	United States	Record daily precipitation	35.1 mm (1.4 in)	32 of 100 (Routine)
Flora 5 NW	United States	Record daily precipitation	86.4 mm (3.4 in)	31 of 100 (Routine)
Virginia	United States	Record high minimum temperature	23.3 C (73.9 F)	30 of 100 (Routine)
Madrid	United States	Record high minimum temperature	23.3 C (73.9 F)	29 of 100 (Routine)
Pakribarwan	India	Record daily precipitation	82.4 mm (3.2 in)	28 of 100 (Routine)
Buzau	Romania	Record high maximum temperature	35.2 C (95.4 F)	28 of 100 (Routine)
Askaniia Nova	Ukraine	Record high minimum temperature	21.2 C (70.2 F)	28 of 100 (Routine)
Feodosiia	Ukraine	Record high maximum temperature	35.4 C (95.7 F)	28 of 100 (Routine)
Daytona Beach	United States	Record low minimum temperature	17.8 C (64.0 F)	28 of 100 (Routine)
Republic	United States	Record low maximum temperature	10.6 C (51.1 F)	28 of 100 (Routine)
Debrecen Airport	Hungary	Record high minimum temperature	20.4 C (68.7 F)	27 of 100 (Routine)
Odesa	Ukraine	Record high maximum temperature	35.6 C (96.1 F)	27 of 100 (Routine)
Henichesk	Ukraine	Record high maximum temperature	37.1 C (98.8 F)	27 of 100 (Routine)
Castle Rock	United States	Record high maximum temperature	35.6 C (96.1 F)	27 of 100 (Routine)
Chester	United States	Record low maximum temperature	14.4 C (57.9 F)	27 of 100 (Routine)
Danbury	United States	Record high minimum temperature	25.0 C (77.0 F)	27 of 100 (Routine)
Cluj Napoca	Romania	Record high minimum temperature	17.9 C (64.2 F)	26 of 100 (Routine)
Holyoke	United States	Record high maximum temperature	40.0 C (104.0 F)	26 of 100 (Routine)
Cresco 1 NE	United States	Record high maximum temperature	35.6 C (96.1 F)	26 of 100 (Routine)
Caledonia	United States	Record high maximum temperature	35.0 C (95.0 F)	26 of 100 (Routine)
Hattiesburg 5SW	United States	Record daily precipitation	53.3 mm (2.1 in)	26 of 100 (Routine)
Gospic	Croatia	Record high minimum temperature	14.3 C (57.7 F)	25 of 100 (Routine)
Arad	Romania	Record high minimum temperature	19.1 C (66.4 F)	25 of 100 (Routine)
Achinsk	Russia	Record low maximum temperature	14.9 C (58.8 F)	25 of 100 (Routine)
Truxton Canyon	United States	Record low minimum temperature	7.8 C (46.0 F)	25 of 100 (Routine)
Cheesman	United States	Record high maximum temperature	35.0 C (95.0 F)	25 of 100 (Routine)
Paris Stp	United States	Record daily precipitation	34.8 mm (1.4 in)	25 of 100 (Routine)
Primghar	United States	Record high maximum temperature	35.6 C (96.1 F)	25 of 100 (Routine)
Manistique Wwtp	United States	Record high minimum temperature	21.1 C (70.0 F)	25 of 100 (Routine)
Wisconsin Dells Wwtp	United States	Record high maximum temperature	37.2 C (99.0 F)	25 of 100 (Routine)
Medicine Hat A	Canada	Record daily precipitation	25.9 mm (1.0 in)	24 of 100 (Routine)
Simferopol	Ukraine	Record high maximum temperature	34.2 C (93.6 F)	24 of 100 (Routine)
Franklin 3 NW	United States	Record low maximum temperature	28.9 C (84.0 F)	24 of 100 (Routine)
Ontonagon	United States	Record high minimum temperature	25.0 C (77.0 F)	24 of 100 (Routine)
Springview 2NW	United States	Record high maximum temperature	39.4 C (102.9 F)	24 of 100 (Routine)
Brockport	United States	Record high maximum temperature	33.9 C (93.0 F)	24 of 100 (Routine)
Mohonk Lake	United States	Record daily precipitation	31.5 mm (1.2 in)	24 of 100 (Routine)
Buffalo	United States	Record low minimum temperature	3.3 C (37.9 F)	24 of 100 (Routine)
Juneau Dwtn	United States	Record high maximum temperature	26.1 C (79.0 F)	24 of 100 (Routine)
Chapra Obsy Sr	India	Record daily precipitation	53.2 mm (2.1 in)	23 of 100 (Routine)
Maricopa	United States	Record low minimum temperature	11.7 C (53.1 F)	23 of 100 (Routine)
Fairfield	United States	Record high maximum temperature	38.3 C (100.9 F)	23 of 100 (Routine)
Eagle Harbor	United States	Record high minimum temperature	21.1 C (70.0 F)	23 of 100 (Routine)
Fairmont	United States	Record high minimum temperature	25.0 C (77.0 F)	23 of 100 (Routine)
Belleplain STN Forest	United States	Record high minimum temperature	26.7 C (80.1 F)	23 of 100 (Routine)
Corvallis State UNIV	United States	Record low maximum temperature	16.1 C (61.0 F)	23 of 100 (Routine)

Counts by Type and Timescale

560 records

Records set or tied on 30 June 1963 by type: Highest daily maximum 120, Lowest daily maximum 52, Highest daily minimum 65, Lowest daily minimum 56, Heaviest daily rainfall 267.

Records on 30 June 1963 by type
Record type	Records
Highest daily maximum	120
Lowest daily maximum	52
Highest daily minimum	65
Lowest daily minimum	56
Heaviest daily rainfall	267
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 June 1963 by timescale: all-time 0, monthly 21, daily 539.

How Much Records Were Beaten By

448 broken records

Margins by which the 448 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 46.4. Ties are not counted.

Top 20 by Significance

30 June 1963

Top 20 records on 30 June 1963 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 June 1963	Den Helder-1, NL	daily rain	25.7 mm (1.0 in)	9.2 mm (0.36 in)	97 years	57 of 100 (Notable)
30 June 1963	Tupper Lake Sunmount, US	daily rain	57.9 mm (2.3 in)	41.1 mm (1.6 in)	33 years	56 of 100 (Notable)
30 June 1963	Steinkopf (Pol), ZA	daily rain	54.0 mm (2.1 in)	28.6 mm (1.1 in)	68 years	54 of 100 (Notable)
30 June 1963	Beauceville, CA	daily rain	65.8 mm (2.6 in)	37.1 mm (1.5 in)	42 years	53 of 100 (Notable)
30 June 1963	Mount Narryer, AU	daily rain	25.4 mm (1.0 in)	23.1 mm (0.9 in)	46 years	52 of 100 (Notable)
30 June 1963	Tanana AP, US	daily rain	32.5 mm (1.3 in)	22.8 mm (0.9 in)	10 years	49 of 100 (Notable)
30 June 1963	Mountainair, US	daily high min	24.4 C (75.9 F)	8.8 C (15.8 F)	45 years	44 of 100 (Notable)
30 June 1963	Itaporanga Dajuda, BR	daily rain	52.3 mm (2.1 in)	28.3 mm (1.1 in)	48 years	41 of 100 (Notable)
30 June 1963	Mahespur, IN	daily rain	89.3 mm (3.5 in)	46.4 mm (1.8 in)	53 years	41 of 100 (Notable)
30 June 1963	Wooramel, AU	daily rain	32.0 mm (1.3 in)	20.1 mm (0.8 in)	46 years	40 of 100 (Notable)
30 June 1963	Amarpara, IN	daily rain	161.3 mm (6.4 in)	43.2 mm (1.7 in)	53 years	40 of 100 (Notable)
30 June 1963	Lockport 2SE, US	monthly high max	35.6 C (96.1 F)	0.6 C (1.1 F)	62 years	36 of 100 (Notable)
30 June 1963	Durham, CA	daily high max	32.2 C (90.0 F)	1.6 C (2.9 F)	78 years	34 of 100 (Routine)
30 June 1963	Pakur, IN	daily rain	82.0 mm (3.2 in)	32.5 mm (1.3 in)	42 years	32 of 100 (Routine)
30 June 1963	Lufkin Angelina Co AP, US	daily rain	35.1 mm (1.4 in)	22.4 mm (0.9 in)	44 years	32 of 100 (Routine)
30 June 1963	Flora 5 NW, US	monthly rain	86.4 mm (3.4 in)	3.8 mm (0.15 in)	39 years	31 of 100 (Routine)
30 June 1963	Virginia, US	monthly high min	23.3 C (73.9 F)	2.2 C (4.0 F)	36 years	30 of 100 (Routine)
30 June 1963	Madrid, US	daily high min	23.3 C (73.9 F)	2.2 C (4.0 F)	61 years	29 of 100 (Routine)
30 June 1963	Pakribarwan, IN	daily rain	82.4 mm (3.2 in)	28.6 mm (1.1 in)	20 years	28 of 100 (Routine)
30 June 1963	Buzau, RO	daily high max	35.2 C (95.4 F)	1.7 C (3.1 F)	60 years	28 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

1826 to 1963

Records set or tied on this calendar date in each year from 1826 to 1963. 1963 had 560 records.

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

Records on 06-30 in each year
Year	Records
1826	1
1832	1
1835	2
1843	2
1846	1
1848	2
1849	1
1853	1
1855	1
1857	1
1860	1
1863	1
1865	1
1869	1
1871	1
1873	1
1876	1
1879	2
1882	2
1883	3
1885	4
1886	1
1887	2
1888	2
1889	1
1890	3
1891	2
1892	1
1894	1
1895	1
1896	2
1897	6
1898	3
1899	4
1900	5
1901	9
1902	10
1903	8
1904	20
1905	23
1906	20
1907	12
1908	17
1909	39
1910	57
1911	12
1912	32
1913	99
1914	97
1915	40
1916	66
1917	39
1918	54
1919	72
1920	319
1921	121
1922	133
1923	309
1924	194
1925	113
1926	65
1927	240
1928	137
1929	213
1930	168
1931	774
1932	154
1933	571
1934	331
1935	347
1936	620
1937	458
1938	330
1939	438
1940	346
1941	341
1942	408
1943	790
1944	272
1945	671
1946	631
1947	487
1948	340
1949	403
1950	494
1951	517
1952	533
1953	404
1954	426
1955	432
1956	409
1957	592
1958	423
1959	948
1960	270
1961	351
1962	375
1963	560
1964	434
1965	240
1966	379
1967	414
1968	752
1969	459
1970	730
1971	459
1972	558
1973	623
1974	643
1975	414
1976	607
1977	662
1978	721
1979	601
1980	935
1981	838
1982	1,230
1983	752
1984	722
1985	829
1986	745
1987	1,044
1988	1,216
1989	953
1990	1,191
1991	1,129
1992	1,670
1993	711
1994	951
1995	1,354
1996	889
1997	938
1998	1,714
1999	910
2000	861
2001	778
2002	904
2003	896
2004	998
2005	1,526
2006	723
2007	736
2008	852
2009	1,052
2010	1,069
2011	1,057
2012	1,416
2013	963
2014	496
2015	1,018
2016	371
2017	642
2018	625
2019	1,042
2020	1,151
2021	1,442
2022	709
2023	531
2024	1,004
2025	858
2026	999

Download the Data

Data for records on 1963-06-30: 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).