Weather Records on 22 August 1964

686 weather records were set or tied worldwide on 22 August 1964. Highest significance: Ridgetown, CA.

Key Facts for 22 August 1964

On 22 August 1964, 686 weather records were set or tied at long-record stations worldwide.
88 were record highs and 346 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 12 monthly and 672 daily.
Ridgetown set a daily record precipitation of 77.5 mm (3.1 in) on 22 August 1964.
Across 167 earlier years (1802 to 2026) the same calendar date averaged 435 records.

Record Map

686 stations

686 station records on 22 August 1964 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 22 August 1964: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ridgetown	Canada	Record daily precipitation	77.5 mm (3.1 in)	71 of 100 (Major)
Port Stanley	Canada	Record daily precipitation	73.7 mm (2.9 in)	61 of 100 (Major)
Port Dover	Canada	Record daily precipitation	62.2 mm (2.4 in)	59 of 100 (Notable)
Arthur City	United States	Record daily precipitation	95.0 mm (3.7 in)	55 of 100 (Notable)
Lead	United States	Record daily precipitation	55.6 mm (2.2 in)	54 of 100 (Notable)
Tatarsk	Russia	Record daily precipitation	82.9 mm (3.3 in)	52 of 100 (Notable)
Hoffmeister 3 W	United States	Record daily precipitation	77.5 mm (3.1 in)	52 of 100 (Notable)
New Braunfels	United States	Record daily precipitation	94.0 mm (3.7 in)	50 of 100 (Notable)
Toronto	Canada	Record daily precipitation	26.4 mm (1.0 in)	47 of 100 (Notable)
Pine Ridge	United States	Record daily precipitation	67.3 mm (2.6 in)	47 of 100 (Notable)
Delhi Cda	Canada	Record daily precipitation	73.4 mm (2.9 in)	46 of 100 (Notable)
Grimsby	Canada	Record daily precipitation	46.0 mm (1.8 in)	46 of 100 (Notable)
Caledonia	Canada	Record daily precipitation	53.8 mm (2.1 in)	45 of 100 (Notable)
Lake Park 3SSE	United States	Record daily precipitation	59.9 mm (2.4 in)	45 of 100 (Notable)
Meadville 1 S	United States	Record daily precipitation	48.5 mm (1.9 in)	45 of 100 (Notable)
Nordby (Fano)	Denmark	Record low minimum temperature	5.6 C (42.1 F)	44 of 100 (Notable)
Bowman	United States	Record daily precipitation	29.0 mm (1.1 in)	44 of 100 (Notable)
Edmonton 3 W	United States	Record daily precipitation	55.9 mm (2.2 in)	43 of 100 (Notable)
Greenville	United States	Record daily precipitation	48.3 mm (1.9 in)	42 of 100 (Notable)
Nimarana	India	Record daily precipitation	120.0 mm (4.7 in)	41 of 100 (Notable)
Grafton	United States	Record low maximum temperature	15.6 C (60.1 F)	41 of 100 (Notable)
Marlin	United States	Record daily precipitation	74.2 mm (2.9 in)	41 of 100 (Notable)
Chatham	Canada	Record daily precipitation	51.1 mm (2.0 in)	40 of 100 (Notable)
Isabela Substn	Puerto Rico [United States]	Record low maximum temperature	26.7 C (80.1 F)	40 of 100 (Notable)
Trenton Falls	United States	Record daily precipitation	46.7 mm (1.8 in)	39 of 100 (Notable)
Gann Valley 4NW	United States	Record low maximum temperature	15.6 C (60.1 F)	39 of 100 (Notable)
Bolton	United States	Record daily precipitation	42.4 mm (1.7 in)	39 of 100 (Notable)
Leamington	Canada	Record daily precipitation	50.8 mm (2.0 in)	38 of 100 (Notable)
Fisk	United States	Record daily precipitation	68.6 mm (2.7 in)	38 of 100 (Notable)
Sherman	United States	Record daily precipitation	89.2 mm (3.5 in)	38 of 100 (Notable)
Japaratuba	Brazil	Record daily precipitation	45.6 mm (1.8 in)	37 of 100 (Notable)
Rushville	United States	Record daily precipitation	42.4 mm (1.7 in)	37 of 100 (Notable)
Franklin	United States	Record daily precipitation	56.1 mm (2.2 in)	37 of 100 (Notable)
St Catharines Cda	Canada	Record daily precipitation	40.4 mm (1.6 in)	36 of 100 (Notable)
St Thomas	Canada	Record daily precipitation	86.9 mm (3.4 in)	36 of 100 (Notable)
Magdeburg	Germany	Record low minimum temperature	5.6 C (42.1 F)	36 of 100 (Notable)
Estherville 4E	United States	Record daily precipitation	41.9 mm (1.6 in)	36 of 100 (Notable)
Waynesboro 3 WNW	United States	Record daily precipitation	57.2 mm (2.3 in)	36 of 100 (Notable)
Cavendish	United States	Record daily precipitation	48.3 mm (1.9 in)	36 of 100 (Notable)
Bowling Green Warren Co AP	United States	Record daily precipitation	54.9 mm (2.2 in)	36 of 100 (Notable)
Harrow Cda	Canada	Record daily precipitation	28.7 mm (1.1 in)	35 of 100 (Notable)
Birch Tree	United States	Record daily precipitation	75.2 mm (3.0 in)	35 of 100 (Notable)
Harrison	United States	Record low maximum temperature	12.2 C (54.0 F)	35 of 100 (Notable)
Laguna	United States	Record low minimum temperature	6.1 C (43.0 F)	35 of 100 (Notable)
Paint Rock	United States	Record daily precipitation	29.5 mm (1.2 in)	35 of 100 (Notable)
Huntingdon	Canada	Record low maximum temperature	15.6 C (60.1 F)	34 of 100 (Routine)
Vestervig	Denmark	Record low minimum temperature	7.7 C (45.9 F)	34 of 100 (Routine)
Lubeck-Werft	Germany	Record low minimum temperature	5.2 C (41.4 F)	34 of 100 (Routine)
Norwood	United States	Record low minimum temperature	1.1 C (34.0 F)	34 of 100 (Routine)
Willow Sprg Radio Kuku	United States	Record daily precipitation	42.4 mm (1.7 in)	34 of 100 (Routine)
Springview 2NW	United States	Record low maximum temperature	16.1 C (61.0 F)	34 of 100 (Routine)
Hatch	United States	Record low minimum temperature	11.1 C (52.0 F)	34 of 100 (Routine)
San Fidel 2 E	United States	Record low minimum temperature	3.3 C (37.9 F)	34 of 100 (Routine)
Stafford	United States	Record daily precipitation	43.2 mm (1.7 in)	34 of 100 (Routine)
Cambridge Galt Moe	Canada	Record daily precipitation	29.5 mm (1.2 in)	33 of 100 (Routine)
Sardarshahar	India	Record daily precipitation	81.3 mm (3.2 in)	33 of 100 (Routine)
Waterloo	United States	Record daily precipitation	38.1 mm (1.5 in)	33 of 100 (Routine)
Big Wells 2W	United States	Record daily precipitation	106.2 mm (4.2 in)	33 of 100 (Routine)
Dublin 2SE	United States	Record daily precipitation	99.1 mm (3.9 in)	33 of 100 (Routine)
Pathfinder Dam	United States	Record low maximum temperature	17.2 C (63.0 F)	33 of 100 (Routine)

Counts by Type and Timescale

686 records

Records set or tied on 22 August 1964 by type: Highest daily maximum 26, Lowest daily maximum 217, Highest daily minimum 62, Lowest daily minimum 129, Heaviest daily rainfall 252.

Records on 22 August 1964 by type
Record type	Records
Highest daily maximum	26
Lowest daily maximum	217
Highest daily minimum	62
Lowest daily minimum	129
Heaviest daily rainfall	252
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 22 August 1964 by timescale: all-time 2, monthly 12, daily 672.

How Much Records Were Beaten By

565 broken records

Margins by which the 565 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 69.2. Ties are not counted.

Top 20 by Significance

22 August 1964

Top 20 records on 22 August 1964 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
22 August 1964	Ridgetown, CA	daily rain	77.5 mm (3.1 in)	56.2 mm (2.2 in)	76 years	71 of 100 (Major)
22 August 1964	Port Stanley, CA	daily rain	73.7 mm (2.9 in)	32.0 mm (1.3 in)	76 years	61 of 100 (Major)
22 August 1964	Port Dover, CA	daily rain	62.2 mm (2.4 in)	40.4 mm (1.6 in)	49 years	59 of 100 (Notable)
22 August 1964	Arthur City, US	daily rain	95.0 mm (3.7 in)	56.9 mm (2.2 in)	52 years	55 of 100 (Notable)
22 August 1964	Lead, US	daily rain	55.6 mm (2.2 in)	39.1 mm (1.5 in)	31 years	54 of 100 (Notable)
22 August 1964	Tatarsk, RU	all-time rain	82.9 mm (3.3 in)	5.1 mm (0.20 in)	61 years	52 of 100 (Notable)
22 August 1964	Hoffmeister 3 W, US	daily rain	77.5 mm (3.1 in)	52.9 mm (2.1 in)	29 years	52 of 100 (Notable)
22 August 1964	New Braunfels, US	daily rain	94.0 mm (3.7 in)	48.5 mm (1.9 in)	44 years	50 of 100 (Notable)
22 August 1964	Toronto, CA	daily rain	26.4 mm (1.0 in)	7.6 mm (0.30 in)	107 years	47 of 100 (Notable)
22 August 1964	Pine Ridge, US	daily rain	67.3 mm (2.6 in)	44.2 mm (1.7 in)	31 years	47 of 100 (Notable)
22 August 1964	Delhi Cda, CA	daily rain	73.4 mm (2.9 in)	49.5 mm (1.9 in)	11 years	46 of 100 (Notable)
22 August 1964	Grimsby, CA	daily rain	46.0 mm (1.8 in)	35.3 mm (1.4 in)	51 years	46 of 100 (Notable)
22 August 1964	Caledonia, CA	daily rain	53.8 mm (2.1 in)	42.9 mm (1.7 in)	23 years	45 of 100 (Notable)
22 August 1964	Lake Park 3SSE, US	daily rain	59.9 mm (2.4 in)	39.6 mm (1.6 in)	50 years	45 of 100 (Notable)
22 August 1964	Meadville 1 S, US	daily rain	48.5 mm (1.9 in)	42.7 mm (1.7 in)	25 years	45 of 100 (Notable)
22 August 1964	Nordby (Fano), DK	daily low min	5.6 C (42.1 F)	2.4 C (4.3 F)	82 years	44 of 100 (Notable)
22 August 1964	Bowman, US	daily rain	29.0 mm (1.1 in)	17.8 mm (0.7 in)	48 years	44 of 100 (Notable)
22 August 1964	Edmonton 3 W, US	daily rain	55.9 mm (2.2 in)	22.6 mm (0.9 in)	56 years	43 of 100 (Notable)
22 August 1964	Greenville, US	daily rain	48.3 mm (1.9 in)	29.0 mm (1.1 in)	60 years	42 of 100 (Notable)
22 August 1964	Nimarana, IN	daily rain	120.0 mm (4.7 in)	69.2 mm (2.7 in)	4 years	41 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 686 records.

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

Records on 08-22 in each year
Year	Records
1802	2
1803	1
1805	1
1812	1
1816	1
1835	1
1839	2
1843	1
1846	2
1849	1
1850	1
1853	1
1857	1
1863	1
1864	1
1867	1
1868	1
1869	1
1870	4
1872	1
1875	1
1876	3
1877	3
1878	2
1882	1
1883	1
1884	1
1885	1
1886	1
1887	2
1888	2
1889	3
1891	2
1892	6
1893	3
1894	7
1895	6
1896	2
1897	4
1898	6
1899	5
1900	1
1901	5
1902	6
1903	3
1904	8
1905	7
1906	24
1907	7
1908	29
1909	5
1910	19
1911	20
1912	39
1913	30
1914	18
1915	31
1916	75
1917	47
1918	85
1919	18
1920	60
1921	64
1922	44
1923	279
1924	148
1925	219
1926	144
1927	154
1928	134
1929	240
1930	276
1931	388
1932	222
1933	367
1934	234
1935	337
1936	954
1937	421
1938	501
1939	517
1940	503
1941	249
1942	500
1943	517
1944	526
1945	475
1946	410
1947	1,034
1948	297
1949	570
1950	460
1951	452
1952	372
1953	348
1954	466
1955	553
1956	785
1957	371
1958	511
1959	547
1960	612
1961	562
1962	329
1963	419
1964	686
1965	423
1966	830
1967	404
1968	1,091
1969	727
1970	368
1971	1,021
1972	436
1973	611
1974	628
1975	597
1976	722
1977	655
1978	529
1979	547
1980	640
1981	795
1982	912
1983	1,366
1984	739
1985	793
1986	1,073
1987	801
1988	1,133
1989	753
1990	808
1991	808
1992	994
1993	845
1994	803
1995	1,002
1996	942
1997	1,381
1998	1,016
1999	756
2000	867
2001	940
2002	1,385
2003	1,550
2004	1,029
2005	887
2006	832
2007	1,801
2008	869
2009	1,347
2010	1,397
2011	1,255
2012	831
2013	450
2014	911
2015	529
2016	730
2017	537
2018	752
2019	558
2020	1,041
2021	683
2022	781
2023	1,525
2024	803
2025	1,359
2026	992

Download the Data

Data for records on 1964-08-22: 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 10	452
10 to 20	61
20 to 30	20
30 to 40	18
40 to 50	10
50 to 60	3
60 to 70	1