Weather Records on 23 August 1964

724 weather records were set or tied worldwide on 23 August 1964. Highest significance: Chelsea, US.

Key Facts for 23 August 1964

On 23 August 1964, 724 weather records were set or tied at long-record stations worldwide.
136 were record highs and 285 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 19 monthly and 704 daily.
Chelsea set a daily record precipitation of 61.5 mm (2.4 in) on 23 August 1964.
Across 164 earlier years (1802 to 2026) the same calendar date averaged 442 records.

Record Map

724 stations

724 station records on 23 August 1964 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 23 August 1964: highest significance records shown on the map
Station	Country	Type	Value	Significance
Chelsea	United States	Record daily precipitation	61.5 mm (2.4 in)	56 of 100 (Notable)
Aul	India	Record daily precipitation	145.1 mm (5.7 in)	55 of 100 (Notable)
Khibiny	Russia	Record daily precipitation	25.8 mm (1.0 in)	54 of 100 (Notable)
Carrizo Springs 3S	United States	Record daily precipitation	125.7 mm (4.9 in)	54 of 100 (Notable)
Seguin	United States	Record daily precipitation	76.2 mm (3.0 in)	54 of 100 (Notable)
Hogsett Rc Byrd Dam	United States	Record daily precipitation	89.4 mm (3.5 in)	54 of 100 (Notable)
Ashland	United States	Record daily precipitation	54.6 mm (2.1 in)	52 of 100 (Notable)
Rochester	United States	Record daily precipitation	72.4 mm (2.9 in)	51 of 100 (Notable)
Woodstock	United States	Record daily precipitation	48.3 mm (1.9 in)	51 of 100 (Notable)
Ilbunga	Australia	Record daily precipitation	32.3 mm (1.3 in)	49 of 100 (Notable)
Truro Nsac	Canada	Record daily precipitation	75.7 mm (3.0 in)	49 of 100 (Notable)
Yaamba	Australia	Record daily precipitation	63.5 mm (2.5 in)	48 of 100 (Notable)
Roldal	Norway	Record daily precipitation	48.4 mm (1.9 in)	48 of 100 (Notable)
Dannemora	United States	Record daily precipitation	31.8 mm (1.3 in)	48 of 100 (Notable)
South Edwards 1 E	United States	Record daily precipitation	50.8 mm (2.0 in)	48 of 100 (Notable)
Gardiner	United States	Record daily precipitation	53.1 mm (2.1 in)	47 of 100 (Notable)
Racine Dam 23	United States	Record daily precipitation	90.2 mm (3.6 in)	47 of 100 (Notable)
Belleville Dam 2O	United States	Record daily precipitation	57.2 mm (2.3 in)	47 of 100 (Notable)
Kentville Cda	Canada	Record daily precipitation	81.0 mm (3.2 in)	46 of 100 (Notable)
Karesuando	Sweden	Record daily precipitation	25.6 mm (1.0 in)	46 of 100 (Notable)
York Pond	United States	Record daily precipitation	51.6 mm (2.0 in)	46 of 100 (Notable)
Rockdale	Australia	Record daily precipitation	36.1 mm (1.4 in)	45 of 100 (Notable)
Pinkham Notch	United States	Record daily precipitation	72.6 mm (2.9 in)	45 of 100 (Notable)
Mc Indoe Falls	United States	Record daily precipitation	52.6 mm (2.1 in)	45 of 100 (Notable)
Chazy	United States	Record daily precipitation	40.6 mm (1.6 in)	44 of 100 (Notable)
Hinckley 2 SW	United States	Record daily precipitation	53.6 mm (2.1 in)	43 of 100 (Notable)
Sogndal - Selseng	Norway	Record daily precipitation	40.0 mm (1.6 in)	42 of 100 (Notable)
Krambach (Bellevue)	Australia	Record daily precipitation	69.3 mm (2.7 in)	41 of 100 (Notable)
Trenton Falls	United States	Record daily precipitation	63.0 mm (2.5 in)	41 of 100 (Notable)
Greensboro Lock 7	United States	Record daily precipitation	41.4 mm (1.6 in)	41 of 100 (Notable)
Fowlerton	United States	Record daily precipitation	63.5 mm (2.5 in)	41 of 100 (Notable)
Rutland	United States	Record daily precipitation	45.0 mm (1.8 in)	40 of 100 (Notable)
Baltimore Customs House	United States	Record high minimum temperature	25.6 C (78.1 F)	40 of 100 (Notable)
Olho Dagua	Brazil	Record daily precipitation	27.8 mm (1.1 in)	39 of 100 (Notable)
Kaunas	Lithuania	Record low minimum temperature	2.8 C (37.0 F)	39 of 100 (Notable)
Bethlehem	United States	Record daily precipitation	56.6 mm (2.2 in)	39 of 100 (Notable)
Pandappa Homestead	Australia	Record daily precipitation	44.7 mm (1.8 in)	38 of 100 (Notable)
Parrsboro	Canada	Record daily precipitation	51.8 mm (2.0 in)	38 of 100 (Notable)
Hondo	United States	Record daily precipitation	37.8 mm (1.5 in)	38 of 100 (Notable)
Ogallala	United States	Record low minimum temperature	4.4 C (39.9 F)	36 of 100 (Notable)
Northfield	United States	Record daily precipitation	57.7 mm (2.3 in)	36 of 100 (Notable)
Langmorn	Australia	Record daily precipitation	76.5 mm (3.0 in)	35 of 100 (Notable)
Vilnius	Lithuania	Record low minimum temperature	3.9 C (39.0 F)	35 of 100 (Notable)
Middletown 4 W	United States	Record low maximum temperature	17.8 C (64.0 F)	35 of 100 (Notable)
Brockport	United States	Record daily precipitation	33.3 mm (1.3 in)	35 of 100 (Notable)
Brownwood 2NE	United States	Record low maximum temperature	24.4 C (75.9 F)	35 of 100 (Notable)
Dilley	United States	Record daily precipitation	52.3 mm (2.1 in)	35 of 100 (Notable)
Canton 4 SE	United States	Record daily precipitation	65.5 mm (2.6 in)	35 of 100 (Notable)
Bridgeport 5 NW	United States	Record daily precipitation	29.2 mm (1.1 in)	34 of 100 (Routine)
Cave Run Lake	United States	Record daily precipitation	51.8 mm (2.0 in)	34 of 100 (Routine)
Lincoln	United States	Record daily precipitation	58.4 mm (2.3 in)	34 of 100 (Routine)
Hoffmeister 3 W	United States	Record daily precipitation	78.7 mm (3.1 in)	34 of 100 (Routine)
Huntsville	United States	Record daily precipitation	36.6 mm (1.4 in)	34 of 100 (Routine)
Mexia	United States	Record low maximum temperature	25.0 C (77.0 F)	34 of 100 (Routine)
Marlborough Post Office	Australia	Record daily precipitation	40.6 mm (1.6 in)	33 of 100 (Routine)
Stillwater	Canada	Record daily precipitation	41.4 mm (1.6 in)	33 of 100 (Routine)
Magdeburg	Germany	Record low minimum temperature	5.0 C (41.0 F)	33 of 100 (Routine)
Syracuse 1NE	United States	Record low minimum temperature	4.4 C (39.9 F)	33 of 100 (Routine)
Chestertown	United States	Record high minimum temperature	25.0 C (77.0 F)	33 of 100 (Routine)
Northfield	United States	Record low maximum temperature	13.9 C (57.0 F)	33 of 100 (Routine)

Counts by Type and Timescale

724 records

Records set or tied on 23 August 1964 by type: Highest daily maximum 37, Lowest daily maximum 138, Highest daily minimum 99, Lowest daily minimum 147, Heaviest daily rainfall 303.

Records on 23 August 1964 by type
Record type	Records
Highest daily maximum	37
Lowest daily maximum	138
Highest daily minimum	99
Lowest daily minimum	147
Heaviest daily rainfall	303
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 23 August 1964 by timescale: all-time 1, monthly 19, daily 704.

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 113.6. Ties are not counted.

Top 20 by Significance

23 August 1964

Top 20 records on 23 August 1964 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 August 1964	Chelsea, US	daily rain	61.5 mm (2.4 in)	38.1 mm (1.5 in)	49 years	56 of 100 (Notable)
23 August 1964	Aul, IN	daily rain	145.1 mm (5.7 in)	113.6 mm (4.5 in)	35 years	55 of 100 (Notable)
23 August 1964	Khibiny, RU	daily rain	25.8 mm (1.0 in)	15.8 mm (0.6 in)	62 years	54 of 100 (Notable)
23 August 1964	Carrizo Springs 3S, US	daily rain	125.7 mm (4.9 in)	101.6 mm (4.0 in)	33 years	54 of 100 (Notable)
23 August 1964	Seguin, US	daily rain	76.2 mm (3.0 in)	63.8 mm (2.5 in)	39 years	54 of 100 (Notable)
23 August 1964	Hogsett Rc Byrd Dam, US	monthly rain	89.4 mm (3.5 in)	32.5 mm (1.3 in)	29 years	54 of 100 (Notable)
23 August 1964	Ashland, US	daily rain	54.6 mm (2.1 in)	33.0 mm (1.3 in)	66 years	52 of 100 (Notable)
23 August 1964	Rochester, US	daily rain	72.4 mm (2.9 in)	52.1 mm (2.1 in)	28 years	51 of 100 (Notable)
23 August 1964	Woodstock, US	daily rain	48.3 mm (1.9 in)	34.1 mm (1.3 in)	49 years	51 of 100 (Notable)
23 August 1964	Ilbunga, AU	daily rain	32.3 mm (1.3 in)	31.0 mm (1.2 in)	26 years	49 of 100 (Notable)
23 August 1964	Truro Nsac, CA	daily rain	75.7 mm (3.0 in)	35.1 mm (1.4 in)	44 years	49 of 100 (Notable)
23 August 1964	Yaamba, AU	monthly rain	63.5 mm (2.5 in)	12.7 mm (0.5 in)	57 years	48 of 100 (Notable)
23 August 1964	Roldal, NO	daily rain	48.4 mm (1.9 in)	21.6 mm (0.9 in)	51 years	48 of 100 (Notable)
23 August 1964	Dannemora, US	daily rain	31.8 mm (1.3 in)	22.9 mm (0.9 in)	58 years	48 of 100 (Notable)
23 August 1964	South Edwards 1 E, US	daily rain	50.8 mm (2.0 in)	41.1 mm (1.6 in)	31 years	48 of 100 (Notable)
23 August 1964	Gardiner, US	daily rain	53.1 mm (2.1 in)	22.9 mm (0.9 in)	62 years	47 of 100 (Notable)
23 August 1964	Racine Dam 23, US	all-time rain	90.2 mm (3.6 in)	20.6 mm (0.8 in)	23 years	47 of 100 (Notable)
23 August 1964	Belleville Dam 2O, US	daily rain	57.2 mm (2.3 in)	36.9 mm (1.5 in)	40 years	47 of 100 (Notable)
23 August 1964	Kentville Cda, CA	daily rain	81.0 mm (3.2 in)	43.4 mm (1.7 in)	29 years	46 of 100 (Notable)
23 August 1964	Karesuando, SE	daily rain	25.6 mm (1.0 in)	10.3 mm (0.4 in)	64 years	46 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

1802 to 1964

Records set or tied on this calendar date in each year from 1802 to 1964. 1964 had 724 records.

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

Records on 08-23 in each year
Year	Records
1802	1
1805	1
1813	2
1816	2
1817	1
1818	1
1829	1
1839	3
1840	1
1846	1
1847	1
1848	1
1853	2
1857	1
1858	1
1864	1
1867	1
1869	1
1870	1
1871	1
1874	2
1877	2
1881	1
1882	2
1883	1
1884	2
1886	1
1887	2
1890	3
1891	4
1892	4
1893	4
1894	2
1895	3
1896	6
1897	1
1898	8
1899	8
1900	2
1901	10
1902	9
1903	9
1904	6
1905	8
1906	27
1907	15
1908	18
1909	10
1910	15
1911	23
1912	44
1913	9
1914	23
1915	63
1916	23
1917	26
1918	91
1919	24
1920	102
1921	280
1922	58
1923	284
1924	127
1925	182
1926	99
1927	198
1928	196
1929	240
1930	432
1931	412
1932	211
1933	342
1934	308
1935	220
1936	980
1937	522
1938	654
1939	439
1940	535
1941	375
1942	540
1943	505
1944	578
1945	338
1946	416
1947	1,071
1948	594
1949	456
1950	461
1951	347
1952	456
1953	292
1954	438
1955	375
1956	501
1957	645
1958	402
1959	494
1960	806
1961	644
1962	364
1963	380
1964	724
1965	357
1966	802
1967	541
1968	1,384
1969	728
1970	518
1971	610
1972	614
1973	650
1974	612
1975	627
1976	703
1977	557
1978	577
1979	459
1980	552
1981	663
1982	713
1983	1,264
1984	862
1985	1,187
1986	839
1987	1,119
1988	1,604
1989	902
1990	661
1991	697
1992	1,291
1993	796
1994	738
1995	1,212
1996	1,161
1997	1,599
1998	1,138
1999	802
2000	936
2001	834
2002	931
2003	1,103
2004	862
2005	786
2006	728
2007	1,513
2008	966
2009	1,241
2010	1,244
2011	1,412
2012	688
2013	397
2014	960
2015	673
2016	595
2017	543
2018	479
2019	445
2020	1,093
2021	629
2022	781
2023	1,287
2024	1,150
2025	1,295
2026	592

Download the Data

Data for records on 1964-08-23: 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	520
20 to 40	53
40 to 60	8
60 to 80	1
80 to 100	0
100 to 120	2