Weather Records on 30 May 1964

709 weather records were set or tied worldwide on 30 May 1964. Highest significance: Pio IX (Patrocinio), BR.

Key Facts for 30 May 1964

On 30 May 1964, 709 weather records were set or tied at long-record stations worldwide.
30 were record highs and 439 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 9 monthly and 698 daily.
Pio IX (Patrocinio) set a daily record precipitation of 50.6 mm (2.0 in) on 30 May 1964.
Across 165 earlier years (1818 to 2026) the same calendar date averaged 437 records.

Record Map

709 stations

709 station records on 30 May 1964 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 May 1964: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pio IX (Patrocinio)	Brazil	Record daily precipitation	50.6 mm (2.0 in)	57 of 100 (Notable)
Tribune 1W	United States	Record daily precipitation	90.4 mm (3.6 in)	53 of 100 (Notable)
McKinney Muni AP	United States	Record daily precipitation	115.8 mm (4.6 in)	50 of 100 (Notable)
Paris	United States	Record daily precipitation	80.8 mm (3.2 in)	50 of 100 (Notable)
Caraubas	Brazil	Record daily precipitation	131.9 mm (5.2 in)	48 of 100 (Notable)
Durant	United States	Record daily precipitation	76.2 mm (3.0 in)	48 of 100 (Notable)
Jacampari	Brazil	Record daily precipitation	62.0 mm (2.4 in)	45 of 100 (Notable)
Ordway 4 W	United States	Record daily precipitation	32.3 mm (1.3 in)	45 of 100 (Notable)
Aughamore	Australia	Record daily precipitation	35.3 mm (1.4 in)	44 of 100 (Notable)
Dandaloo (Tyrie Homestead)	Australia	Record daily precipitation	41.4 mm (1.6 in)	43 of 100 (Notable)
Weatherford	United States	Record daily precipitation	68.6 mm (2.7 in)	42 of 100 (Notable)
Noondoo	Australia	Record daily precipitation	41.9 mm (1.6 in)	41 of 100 (Notable)
Victoria Downs	Australia	Record daily precipitation	36.3 mm (1.4 in)	41 of 100 (Notable)
Elgin Downs	Australia	Record daily precipitation	49.5 mm (1.9 in)	40 of 100 (Notable)
Pombal	Brazil	Record daily precipitation	99.6 mm (3.9 in)	40 of 100 (Notable)
Lumpkin 2 SE	United States	Record low maximum temperature	20.6 C (69.1 F)	40 of 100 (Notable)
Haslam 2	Australia	Record daily precipitation	28.2 mm (1.1 in)	39 of 100 (Notable)
Mount Topper State Forest	Australia	Record daily precipitation	50.8 mm (2.0 in)	39 of 100 (Notable)
Holly	United States	Record daily precipitation	130.0 mm (5.1 in)	39 of 100 (Notable)
Gunnedah Pool	Australia	Record low maximum temperature	11.1 C (52.0 F)	38 of 100 (Notable)
Wirrulla (Petina)	Australia	Record daily precipitation	29.0 mm (1.1 in)	37 of 100 (Notable)
Angellala Downs Homestead	Australia	Record daily precipitation	40.6 mm (1.6 in)	37 of 100 (Notable)
Port Stanley	Canada	Record low minimum temperature	-0.6 C (30.9 F)	37 of 100 (Notable)
Greeley	United States	Record daily precipitation	45.7 mm (1.8 in)	37 of 100 (Notable)
Penong	Australia	Record daily precipitation	27.7 mm (1.1 in)	36 of 100 (Notable)
Wyanga (Barcoo)	Australia	Record daily precipitation	40.4 mm (1.6 in)	36 of 100 (Notable)
Sheo	India	Record daily precipitation	36.8 mm (1.4 in)	36 of 100 (Notable)
Gainesville	United States	Record low maximum temperature	18.3 C (64.9 F)	36 of 100 (Notable)
Netherby	Australia	Record daily precipitation	33.5 mm (1.3 in)	35 of 100 (Notable)
Rowena (Iffley)	Australia	Record daily precipitation	39.6 mm (1.6 in)	35 of 100 (Notable)
Cubbaroo	Australia	Record daily precipitation	38.1 mm (1.5 in)	35 of 100 (Notable)
Pueblo City Rsvr	United States	Record daily precipitation	25.7 mm (1.0 in)	35 of 100 (Notable)
Ness City	United States	Record low maximum temperature	13.3 C (55.9 F)	35 of 100 (Notable)
Dillon	United States	Record low maximum temperature	16.7 C (62.1 F)	35 of 100 (Notable)
Streaky Bay	Australia	Record daily precipitation	29.7 mm (1.2 in)	34 of 100 (Routine)
Bunghill Tank	Australia	Record daily precipitation	33.0 mm (1.3 in)	34 of 100 (Routine)
Mt Ida 3 SE	United States	Record low maximum temperature	18.9 C (66.0 F)	34 of 100 (Routine)
Byers 5 ENE	United States	Record daily precipitation	31.8 mm (1.3 in)	34 of 100 (Routine)
Chickasha	United States	Record daily precipitation	50.3 mm (2.0 in)	34 of 100 (Routine)
Sitka Magnetic Obsy	United States	Record high maximum temperature	28.3 C (82.9 F)	34 of 100 (Routine)
Bangate	Australia	Record daily precipitation	30.0 mm (1.2 in)	33 of 100 (Routine)
Ilford (Warrangunyah)	Australia	Record daily precipitation	26.7 mm (1.1 in)	33 of 100 (Routine)
Kuujjuarapik A	Canada	Record daily snowfall	12.4 cm (4.9 in)	33 of 100 (Routine)
Longmont 2 ESE	United States	Record low minimum temperature	0.0 C (32.0 F)	33 of 100 (Routine)
Eufaula 6 SSW	United States	Record low maximum temperature	16.1 C (61.0 F)	33 of 100 (Routine)
Hugo	United States	Record daily precipitation	57.9 mm (2.3 in)	33 of 100 (Routine)
Kingfisher	United States	Record low maximum temperature	15.6 C (60.1 F)	33 of 100 (Routine)
Poteau	United States	Record low maximum temperature	17.2 C (63.0 F)	33 of 100 (Routine)
Grapevine Dam	United States	Record daily precipitation	46.7 mm (1.8 in)	33 of 100 (Routine)
Hagansport	United States	Record daily precipitation	73.9 mm (2.9 in)	33 of 100 (Routine)
Possession Creek	Australia	Record daily precipitation	52.8 mm (2.1 in)	32 of 100 (Routine)
Equador	Brazil	Record daily precipitation	60.3 mm (2.4 in)	32 of 100 (Routine)
Waldron	United States	Record low maximum temperature	17.8 C (64.0 F)	32 of 100 (Routine)
Syracuse 1NE	United States	Record low maximum temperature	11.7 C (53.1 F)	32 of 100 (Routine)
El Reno 1 N	United States	Record low maximum temperature	19.4 C (66.9 F)	32 of 100 (Routine)
Sallisaw 2 NW	United States	Record low maximum temperature	18.3 C (64.9 F)	32 of 100 (Routine)
Hereford	United States	Record low maximum temperature	15.0 C (59.0 F)	32 of 100 (Routine)
Wandering Comparison	Australia	Record low minimum temperature	-5.6 C (21.9 F)	31 of 100 (Routine)
Langmorn	Australia	Record daily precipitation	39.1 mm (1.5 in)	31 of 100 (Routine)
Cambridge Galt Moe	Canada	Record low minimum temperature	0.0 C (32.0 F)	31 of 100 (Routine)

Counts by Type and Timescale

709 records

Records set or tied on 30 May 1964 by type: Highest daily maximum 15, Lowest daily maximum 292, Highest daily minimum 15, Lowest daily minimum 147, Heaviest daily rainfall 239, Heaviest daily snowfall 1.

Records on 30 May 1964 by type
Record type	Records
Highest daily maximum	15
Lowest daily maximum	292
Highest daily minimum	15
Lowest daily minimum	147
Heaviest daily rainfall	239
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 30 May 1964 by timescale: all-time 2, monthly 9, daily 698.

How Much Records Were Beaten By

586 broken records

Margins by which the 586 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 94.0. Ties are not counted.

Top 20 by Significance

30 May 1964

Top 20 records on 30 May 1964 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 1964	Pio IX (Patrocinio), BR	daily rain	50.6 mm (2.0 in)	50.2 mm (2.0 in)	41 years	57 of 100 (Notable)
30 May 1964	Tribune 1W, US	daily rain	90.4 mm (3.6 in)	32.7 mm (1.3 in)	68 years	53 of 100 (Notable)
30 May 1964	McKinney Muni AP, US	daily rain	115.8 mm (4.6 in)	52.3 mm (2.1 in)	59 years	50 of 100 (Notable)
30 May 1964	Paris, US	daily rain	80.8 mm (3.2 in)	48.5 mm (1.9 in)	56 years	50 of 100 (Notable)
30 May 1964	Caraubas, BR	daily rain	131.9 mm (5.2 in)	86.9 mm (3.4 in)	10 years	48 of 100 (Notable)
30 May 1964	Durant, US	daily rain	76.2 mm (3.0 in)	46.5 mm (1.8 in)	62 years	48 of 100 (Notable)
30 May 1964	Jacampari, BR	daily rain	62.0 mm (2.4 in)	41.8 mm (1.6 in)	30 years	45 of 100 (Notable)
30 May 1964	Ordway 4 W, US	daily rain	32.3 mm (1.3 in)	28.5 mm (1.1 in)	46 years	45 of 100 (Notable)
30 May 1964	Aughamore, AU	daily rain	35.3 mm (1.4 in)	35.3 mm (1.4 in)	35 years	44 of 100 (Notable)
30 May 1964	Dandaloo (Tyrie Homestead), AU	daily rain	41.4 mm (1.6 in)	15.5 mm (0.6 in)	70 years	43 of 100 (Notable)
30 May 1964	Weatherford, US	daily rain	68.6 mm (2.7 in)	45.7 mm (1.8 in)	27 years	42 of 100 (Notable)
30 May 1964	Noondoo, AU	daily rain	41.9 mm (1.6 in)	24.1 mm (0.9 in)	43 years	41 of 100 (Notable)
30 May 1964	Victoria Downs, AU	daily rain	36.3 mm (1.4 in)	32.2 mm (1.3 in)	23 years	41 of 100 (Notable)
30 May 1964	Elgin Downs, AU	daily rain	49.5 mm (1.9 in)	31.5 mm (1.2 in)	30 years	40 of 100 (Notable)
30 May 1964	Pombal, BR	monthly rain	99.6 mm (3.9 in)	18.0 mm (0.7 in)	46 years	40 of 100 (Notable)
30 May 1964	Lumpkin 2 SE, US	daily low max	20.6 C (69.1 F)	5.5 C (9.9 F)	66 years	40 of 100 (Notable)
30 May 1964	Haslam 2, AU	daily rain	28.2 mm (1.1 in)	17.5 mm (0.7 in)	12 years	39 of 100 (Notable)
30 May 1964	Mount Topper State Forest, AU	daily rain	50.8 mm (2.0 in)	47.5 mm (1.9 in)	4 years	39 of 100 (Notable)
30 May 1964	Holly, US	all-time rain	130.0 mm (5.1 in)	11.9 mm (0.5 in)	13 years	39 of 100 (Notable)
30 May 1964	Gunnedah Pool, AU	daily low max	11.1 C (52.0 F)	2.0 C (3.6 F)	84 years	38 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

1818 to 1964

Records set or tied on this calendar date in each year from 1818 to 1964. 1964 had 709 records.

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

Records on 05-30 in each year
Year	Records
1818	3
1844	1
1847	1
1848	1
1852	1
1853	1
1855	1
1856	1
1858	1
1860	2
1863	1
1864	1
1865	4
1867	1
1868	4
1870	1
1871	2
1873	4
1878	1
1879	1
1880	2
1881	1
1882	2
1883	1
1884	2
1885	1
1886	1
1887	1
1889	3
1890	1
1891	1
1892	2
1893	7
1894	2
1895	5
1896	1
1897	1
1898	2
1899	4
1900	1
1901	4
1902	9
1903	12
1904	7
1905	20
1906	8
1907	20
1908	32
1909	6
1910	22
1911	22
1912	26
1913	89
1914	25
1915	32
1916	41
1917	42
1918	31
1919	90
1920	28
1921	392
1922	72
1923	121
1924	187
1925	190
1926	201
1927	177
1928	86
1929	368
1930	530
1931	316
1932	256
1933	250
1934	731
1935	88
1936	579
1937	440
1938	309
1939	336
1940	289
1941	518
1942	500
1943	444
1944	325
1945	383
1946	310
1947	880
1948	386
1949	318
1950	376
1951	448
1952	295
1953	622
1954	271
1955	377
1956	466
1957	267
1958	480
1959	419
1960	274
1961	657
1962	454
1963	245
1964	709
1965	454
1966	326
1967	859
1968	357
1969	1,092
1970	483
1971	1,044
1972	721
1973	391
1974	631
1975	776
1976	499
1977	444
1978	888
1979	1,185
1980	650
1981	1,001
1982	981
1983	1,310
1984	2,543
1985	772
1986	1,264
1987	1,021
1988	1,371
1989	1,021
1990	983
1991	1,264
1992	1,413
1993	690
1994	834
1995	777
1996	893
1997	936
1998	1,190
1999	1,113
2000	1,391
2001	854
2002	940
2003	1,110
2004	1,219
2005	737
2006	1,179
2007	1,128
2008	829
2009	480
2010	771
2011	1,914
2012	720
2013	821
2014	551
2015	699
2016	540
2017	657
2018	1,319
2019	706
2020	920
2021	841
2022	1,034
2023	344
2024	600
2025	828
2026	525

Download the Data

Data for records on 1964-05-30: 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).

Margin	Records
0 to 20	548
20 to 40	28
40 to 60	7
60 to 80	1
80 to 100	2