Weather Records on 1 September 1964

621 weather records were set or tied worldwide on 1 September 1964. Highest significance: Diamond Springs, US.

Key Facts for 1 September 1964

On 1 September 1964, 621 weather records were set or tied at long-record stations worldwide.
76 were record highs and 314 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 11 monthly and 608 daily.
Diamond Springs set an all-time record daily precipitation of 317.5 mm (12.5 in) on 1 September 1964.
Across 161 earlier years (1797 to 2026) the same calendar date averaged 440 records.

Record Map

621 stations

621 station records on 1 September 1964 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 September 1964: highest significance records shown on the map
Station	Country	Type	Value	Significance
Diamond Springs	United States	Record daily precipitation	317.5 mm (12.5 in)	66 of 100 (Major)
Patiala Obsy	India	Record daily precipitation	160.0 mm (6.3 in)	59 of 100 (Notable)
Rocky Mt	United States	Record daily precipitation	106.7 mm (4.2 in)	58 of 100 (Notable)
Elizabeth City	United States	Record daily precipitation	149.9 mm (5.9 in)	57 of 100 (Notable)
Kljuchi	Russia	Record daily precipitation	29.3 mm (1.2 in)	53 of 100 (Notable)
Newport News Press Bld	United States	Record daily precipitation	160.0 mm (6.3 in)	48 of 100 (Notable)
Placerville	United States	Record low maximum temperature	12.8 C (55.0 F)	47 of 100 (Notable)
Ratangarh	India	Record daily precipitation	81.3 mm (3.2 in)	46 of 100 (Notable)
Giant Forest	United States	Record daily precipitation	29.0 mm (1.1 in)	46 of 100 (Notable)
Ft Fairfield 5 NE	United States	Record daily precipitation	50.0 mm (2.0 in)	46 of 100 (Notable)
Beechy	Canada	Record daily precipitation	32.3 mm (1.3 in)	45 of 100 (Notable)
Palermo	Italy	Record daily precipitation	27.0 mm (1.1 in)	45 of 100 (Notable)
Beulah	United States	Record low maximum temperature	12.8 C (55.0 F)	45 of 100 (Notable)
Winnemucca AP	United States	Record low maximum temperature	12.2 C (54.0 F)	45 of 100 (Notable)
De Sabla	United States	Record daily precipitation	40.1 mm (1.6 in)	44 of 100 (Notable)
Orland	United States	Record daily precipitation	25.4 mm (1.0 in)	43 of 100 (Notable)
St Augustine	United States	Record daily precipitation	90.9 mm (3.6 in)	43 of 100 (Notable)
Hughenden	Canada	Record daily precipitation	40.6 mm (1.6 in)	41 of 100 (Notable)
Truckee Rs	United States	Record low maximum temperature	8.9 C (48.0 F)	40 of 100 (Notable)
Volta Ph	United States	Record daily precipitation	27.9 mm (1.1 in)	40 of 100 (Notable)
Vale	United States	Record low maximum temperature	14.4 C (57.9 F)	40 of 100 (Notable)
Dobbins Colgate Foreba	United States	Record low maximum temperature	15.6 C (60.1 F)	39 of 100 (Notable)
Cedarville	United States	Record low maximum temperature	12.2 C (54.0 F)	38 of 100 (Notable)
East Park Rsvr	United States	Record low maximum temperature	18.9 C (66.0 F)	38 of 100 (Notable)
Sierraville Rs	United States	Record low maximum temperature	11.1 C (52.0 F)	38 of 100 (Notable)
Elko Rgnl AP	United States	Record low maximum temperature	14.4 C (57.9 F)	38 of 100 (Notable)
Nordby (Fano)	Denmark	Record low minimum temperature	3.8 C (38.8 F)	37 of 100 (Notable)
N Fk Rs	United States	Record low maximum temperature	17.2 C (63.0 F)	37 of 100 (Notable)
Idaho City	United States	Record low maximum temperature	14.4 C (57.9 F)	37 of 100 (Notable)
Shevgaon	India	Record daily precipitation	107.2 mm (4.2 in)	36 of 100 (Notable)
Jonkoping	Sweden	Record low minimum temperature	1.4 C (34.5 F)	36 of 100 (Notable)
Deer Creek Ph	United States	Record low maximum temperature	11.1 C (52.0 F)	36 of 100 (Notable)
Nevada City	United States	Record low maximum temperature	12.8 C (55.0 F)	36 of 100 (Notable)
Emmett 2 E	United States	Record low maximum temperature	13.3 C (55.9 F)	36 of 100 (Notable)
Adrian	United States	Record low maximum temperature	13.9 C (57.0 F)	36 of 100 (Notable)
Austin 3 S	United States	Record low maximum temperature	8.3 C (46.9 F)	36 of 100 (Notable)
Caldwell	United States	Record low maximum temperature	13.3 C (55.9 F)	35 of 100 (Notable)
Payette	United States	Record low maximum temperature	14.4 C (57.9 F)	35 of 100 (Notable)
Ranfurly	Canada	Record daily precipitation	25.7 mm (1.0 in)	34 of 100 (Routine)
Barstow	United States	Record low maximum temperature	27.2 C (81.0 F)	34 of 100 (Routine)
Canyon Dam	United States	Record low maximum temperature	8.9 C (48.0 F)	34 of 100 (Routine)
Lemon Cove	United States	Record low maximum temperature	22.8 C (73.0 F)	34 of 100 (Routine)
Sonora	United States	Record low minimum temperature	5.0 C (41.0 F)	34 of 100 (Routine)
Yosemite Park HQ	United States	Record low maximum temperature	18.9 C (66.0 F)	34 of 100 (Routine)
Carson City	United States	Record low maximum temperature	15.6 C (60.1 F)	34 of 100 (Routine)
Pembina	United States	Record daily precipitation	43.7 mm (1.7 in)	34 of 100 (Routine)
Huzurabad(Rev)	India	Record daily precipitation	66.8 mm (2.6 in)	33 of 100 (Routine)
Auburn	United States	Record low maximum temperature	16.1 C (61.0 F)	33 of 100 (Routine)
Calaveras Big Trees	United States	Record low maximum temperature	8.3 C (46.9 F)	33 of 100 (Routine)
Twin Lakes	United States	Record low maximum temperature	4.4 C (39.9 F)	33 of 100 (Routine)
Cambridge	United States	Record low maximum temperature	14.4 C (57.9 F)	33 of 100 (Routine)
Garden Valley	United States	Record low maximum temperature	18.9 C (66.0 F)	33 of 100 (Routine)
Lovelock	United States	Record low maximum temperature	16.1 C (61.0 F)	33 of 100 (Routine)
Wallowa	United States	Record low maximum temperature	11.1 C (52.0 F)	33 of 100 (Routine)
Tranebjerg	Denmark	Record low minimum temperature	7.5 C (45.5 F)	32 of 100 (Routine)
Bowman Dam	United States	Record low maximum temperature	7.2 C (45.0 F)	32 of 100 (Routine)
Davis 2 WSW Exp Farm	United States	Record low maximum temperature	20.6 C (69.1 F)	32 of 100 (Routine)
Quincy	United States	Record low maximum temperature	15.6 C (60.1 F)	32 of 100 (Routine)
Council	United States	Record low maximum temperature	11.1 C (52.0 F)	32 of 100 (Routine)
Narasimharajapura	India	Record daily precipitation	60.2 mm (2.4 in)	31 of 100 (Routine)

Counts by Type and Timescale

621 records

Records set or tied on 1 September 1964 by type: Highest daily maximum 21, Lowest daily maximum 231, Highest daily minimum 55, Lowest daily minimum 83, Heaviest daily rainfall 227, Heaviest daily snowfall 3, Deepest snow cover 1.

Records on 1 September 1964 by type
Record type	Records
Highest daily maximum	21
Lowest daily maximum	231
Highest daily minimum	55
Lowest daily minimum	83
Heaviest daily rainfall	227
Heaviest daily snowfall	3
Deepest snow cover	1

Records on 1 September 1964 by timescale: all-time 2, monthly 11, daily 608.

How Much Records Were Beaten By

531 broken records

Margins by which the 531 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 145.5. Ties are not counted.

Top 20 by Significance

1 September 1964

Top 20 records on 1 September 1964 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 September 1964	Diamond Springs, US	all-time rain	317.5 mm (12.5 in)	145.5 mm (5.7 in)	4 years	66 of 100 (Major)
1 September 1964	Patiala Obsy, IN	daily rain	160.0 mm (6.3 in)	115.5 mm (4.5 in)	45 years	59 of 100 (Notable)
1 September 1964	Rocky Mt, US	daily rain	106.7 mm (4.2 in)	76.2 mm (3.0 in)	38 years	58 of 100 (Notable)
1 September 1964	Elizabeth City, US	daily rain	149.9 mm (5.9 in)	130.8 mm (5.1 in)	42 years	57 of 100 (Notable)
1 September 1964	Kljuchi, RU	daily rain	29.3 mm (1.2 in)	20.8 mm (0.8 in)	30 years	53 of 100 (Notable)
1 September 1964	Newport News Press Bld, US	all-time rain	160.0 mm (6.3 in)	36.6 mm (1.4 in)	0 years	48 of 100 (Notable)
1 September 1964	Placerville, US	daily low max	12.8 C (55.0 F)	13.9 C (25.0 F)	48 years	47 of 100 (Notable)
1 September 1964	Ratangarh, IN	daily rain	81.3 mm (3.2 in)	57.2 mm (2.3 in)	55 years	46 of 100 (Notable)
1 September 1964	Giant Forest, US	daily rain	29.0 mm (1.1 in)	29.0 mm (1.1 in)	43 years	46 of 100 (Notable)
1 September 1964	Ft Fairfield 5 NE, US	daily rain	50.0 mm (2.0 in)	37.6 mm (1.5 in)	19 years	46 of 100 (Notable)
1 September 1964	Beechy, CA	daily rain	32.3 mm (1.3 in)	22.1 mm (0.9 in)	31 years	45 of 100 (Notable)
1 September 1964	Palermo, IT	daily rain	27.0 mm (1.1 in)	21.0 mm (0.8 in)	45 years	45 of 100 (Notable)
1 September 1964	Beulah, US	daily low max	12.8 C (55.0 F)	10.5 C (18.9 F)	68 years	45 of 100 (Notable)
1 September 1964	Winnemucca AP, US	daily low max	12.2 C (54.0 F)	7.8 C (14.0 F)	76 years	45 of 100 (Notable)
1 September 1964	De Sabla, US	daily rain	40.1 mm (1.6 in)	40.1 mm (1.6 in)	58 years	44 of 100 (Notable)
1 September 1964	Orland, US	daily rain	25.4 mm (1.0 in)	25.4 mm (1.0 in)	59 years	43 of 100 (Notable)
1 September 1964	St Augustine, US	daily rain	90.9 mm (3.6 in)	58.1 mm (2.3 in)	35 years	43 of 100 (Notable)
1 September 1964	Hughenden, CA	daily rain	40.6 mm (1.6 in)	24.1 mm (0.9 in)	10 years	41 of 100 (Notable)
1 September 1964	Truckee Rs, US	daily low max	8.9 C (48.0 F)	8.9 C (16.0 F)	57 years	40 of 100 (Notable)
1 September 1964	Volta Ph, US	daily rain	27.9 mm (1.1 in)	27.9 mm (1.1 in)	37 years	40 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

1797 to 1964

Records set or tied on this calendar date in each year from 1797 to 1964. 1964 had 621 records.

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

Records on 09-01 in each year
Year	Records
1797	1
1806	1
1819	1
1827	1
1831	1
1838	1
1851	1
1853	1
1854	1
1857	1
1858	1
1859	1
1860	2
1861	1
1865	1
1866	1
1867	2
1869	3
1871	1
1873	1
1876	2
1877	2
1878	3
1879	2
1881	5
1883	1
1886	3
1887	3
1888	2
1890	2
1892	2
1894	3
1897	4
1898	10
1899	3
1900	2
1901	14
1902	5
1903	16
1904	9
1905	6
1906	26
1907	14
1908	26
1909	34
1910	22
1911	16
1912	47
1913	32
1914	23
1915	46
1916	16
1917	24
1918	31
1919	19
1920	31
1921	46
1922	67
1923	75
1924	210
1925	127
1926	182
1927	136
1928	166
1929	324
1930	264
1931	233
1932	550
1933	622
1934	654
1935	584
1936	385
1937	502
1938	373
1939	303
1940	333
1941	497
1942	532
1943	578
1944	377
1945	497
1946	642
1947	555
1948	460
1949	1,102
1950	849
1951	668
1952	644
1953	937
1954	407
1955	413
1956	504
1957	320
1958	427
1959	519
1960	408
1961	531
1962	368
1963	416
1964	621
1965	657
1966	596
1967	1,263
1968	604
1969	493
1970	502
1971	464
1972	518
1973	874
1974	895
1975	939
1976	627
1977	500
1978	809
1979	459
1980	671
1981	649
1982	642
1983	1,167
1984	619
1985	901
1986	964
1987	909
1988	651
1989	823
1990	749
1991	687
1992	1,010
1993	1,122
1994	1,291
1995	1,165
1996	823
1997	1,161
1998	1,159
1999	925
2000	1,613
2001	904
2002	778
2003	1,254
2004	827
2005	901
2006	1,157
2007	976
2008	1,204
2009	1,003
2010	1,313
2011	1,071
2012	874
2013	775
2014	515
2015	661
2016	522
2017	686
2018	399
2019	800
2020	689
2021	751
2022	1,016
2023	720
2024	938
2025	359
2026	521

Download the Data

Data for records on 1964-09-01: 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	490
20 to 40	31
40 to 60	6
60 to 80	1
80 to 100	0
100 to 120	1
120 to 140	1
140 to 160	1