Weather Records on 11 May 1964

299 weather records were set or tied worldwide on 11 May 1964. Highest significance: Cimarron, US.

Key Facts for 11 May 1964

On 11 May 1964, 299 weather records were set or tied at long-record stations worldwide.
45 were record highs and 64 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 9 monthly and 290 daily.
Cimarron set a monthly record daily precipitation of 146.1 mm (5.8 in) on 11 May 1964.
Across 156 earlier years (1814 to 2026) the same calendar date averaged 464 records.

Record Map

299 stations

299 station records on 11 May 1964 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 May 1964: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cimarron	United States	Record daily precipitation	146.1 mm (5.8 in)	63 of 100 (Major)
Parsa	India	Record daily precipitation	51.6 mm (2.0 in)	55 of 100 (Notable)
Kingfisher	United States	Record daily precipitation	93.5 mm (3.7 in)	55 of 100 (Notable)
Scott City	United States	Record daily precipitation	55.4 mm (2.2 in)	54 of 100 (Notable)
Chandler	United States	Record daily precipitation	84.3 mm (3.3 in)	50 of 100 (Notable)
Guthrie 5S	United States	Record daily precipitation	99.1 mm (3.9 in)	49 of 100 (Notable)
Enid	United States	Record daily precipitation	72.1 mm (2.8 in)	44 of 100 (Notable)
Ft Meade	United States	Record daily precipitation	33.5 mm (1.3 in)	43 of 100 (Notable)
Zilverhout	South Africa	Record daily precipitation	35.5 mm (1.4 in)	42 of 100 (Notable)
Sharon Springs	United States	Record daily precipitation	44.2 mm (1.7 in)	40 of 100 (Notable)
Weatherford	United States	Record daily precipitation	84.8 mm (3.3 in)	40 of 100 (Notable)
Dumont 2 ENE	United States	Record daily precipitation	46.0 mm (1.8 in)	40 of 100 (Notable)
Novosibirsk	Russia	Record daily precipitation	25.9 mm (1.0 in)	38 of 100 (Notable)
Wyola 1 SW	United States	Record daily precipitation	42.4 mm (1.7 in)	38 of 100 (Notable)
Baswa	India	Record daily precipitation	57.1 mm (2.2 in)	37 of 100 (Notable)
Basantpur	India	Record daily precipitation	90.0 mm (3.5 in)	36 of 100 (Notable)
Perkins	United States	Record daily precipitation	94.7 mm (3.7 in)	36 of 100 (Notable)
Jackson Exp STN	United States	Record daily precipitation	41.7 mm (1.6 in)	35 of 100 (Notable)
Subiaco	United States	Record daily precipitation	67.3 mm (2.6 in)	34 of 100 (Routine)
New Bedford Coop	United States	Record high minimum temperature	15.0 C (59.0 F)	33 of 100 (Routine)
Motihari	India	Record daily precipitation	32.6 mm (1.3 in)	32 of 100 (Routine)
Chattarpur	India	Record daily precipitation	25.1 mm (1.0 in)	32 of 100 (Routine)
Saidpur Bhitari	India	Record daily precipitation	29.2 mm (1.1 in)	32 of 100 (Routine)
Houston Wb City	United States	Record high minimum temperature	24.4 C (75.9 F)	32 of 100 (Routine)
Jagpura	India	Record daily precipitation	25.4 mm (1.0 in)	30 of 100 (Routine)
Soledad de Doblado	Mexico	Record low maximum temperature	25.0 C (77.0 F)	30 of 100 (Routine)
Anadarko 3 E	United States	Record daily precipitation	38.4 mm (1.5 in)	30 of 100 (Routine)
Sitka Magnetic Obsy	United States	Record low maximum temperature	5.0 C (41.0 F)	30 of 100 (Routine)
Woodburn Post Office	Australia	Record daily precipitation	33.0 mm (1.3 in)	29 of 100 (Routine)
Bella Coola	Canada	Record low maximum temperature	7.8 C (46.0 F)	29 of 100 (Routine)
Surgut	Russia	Record low minimum temperature	-14.6 C (5.7 F)	29 of 100 (Routine)
Newkirk 5NE	United States	Record daily precipitation	40.6 mm (1.6 in)	29 of 100 (Routine)
Seminole	United States	Record daily precipitation	74.4 mm (2.9 in)	29 of 100 (Routine)
Lower Bucca	Australia	Record daily precipitation	69.9 mm (2.8 in)	28 of 100 (Routine)
Bettiah	India	Record daily precipitation	49.2 mm (1.9 in)	28 of 100 (Routine)
Muhammadabad	India	Record daily precipitation	25.1 mm (1.0 in)	28 of 100 (Routine)
Nenastnaja	Russia	Record daily precipitation	36.4 mm (1.4 in)	28 of 100 (Routine)
Clinton	United States	Record daily precipitation	101.6 mm (4.0 in)	28 of 100 (Routine)
Hennessey 4 ESE	United States	Record daily precipitation	68.1 mm (2.7 in)	28 of 100 (Routine)
Stillwater 2 W	United States	Record daily precipitation	56.9 mm (2.2 in)	27 of 100 (Routine)
Broadwater Sugar Mill	Australia	Record daily precipitation	50.8 mm (2.0 in)	26 of 100 (Routine)
Bella Coola	Canada	Record daily precipitation	28.4 mm (1.1 in)	26 of 100 (Routine)
Darbhanga	India	Record daily precipitation	27.8 mm (1.1 in)	26 of 100 (Routine)
Durbanville (Pol)	South Africa	Record daily precipitation	28.0 mm (1.1 in)	26 of 100 (Routine)
Milan Exp STN	United States	Record daily precipitation	50.0 mm (2.0 in)	26 of 100 (Routine)
Barabinsk	Russia	Record low minimum temperature	-6.6 C (20.1 F)	25 of 100 (Routine)
Caracara	Brazil	Record daily precipitation	34.4 mm (1.4 in)	24 of 100 (Routine)
Baunsi	India	Record daily precipitation	35.0 mm (1.4 in)	24 of 100 (Routine)
Sulphur Springs	United States	Record high minimum temperature	20.6 C (69.1 F)	24 of 100 (Routine)
Gyzylarbat	Turkmenistan	Record high maximum temperature	38.2 C (100.8 F)	23 of 100 (Routine)
Santa Paula	United States	Record low minimum temperature	3.9 C (39.0 F)	23 of 100 (Routine)
Holdenville 2SSE	United States	Record daily precipitation	91.4 mm (3.6 in)	23 of 100 (Routine)
Wagoner	United States	Record daily precipitation	61.5 mm (2.4 in)	23 of 100 (Routine)
Watonga	United States	Record daily precipitation	58.7 mm (2.3 in)	23 of 100 (Routine)
Laurier	United States	Record low minimum temperature	-4.4 C (24.1 F)	23 of 100 (Routine)
Ganca	Azerbaijan	Record high minimum temperature	18.4 C (65.1 F)	22 of 100 (Routine)
Sredny Vasjugan	Russia	Record low minimum temperature	-8.5 C (16.7 F)	22 of 100 (Routine)
Bristow	United States	Record daily precipitation	76.7 mm (3.0 in)	22 of 100 (Routine)
El Reno 1 N	United States	Record daily precipitation	60.7 mm (2.4 in)	22 of 100 (Routine)
Gettysburg	United States	Record high minimum temperature	16.1 C (61.0 F)	22 of 100 (Routine)

Counts by Type and Timescale

299 records

Records set or tied on 11 May 1964 by type: Highest daily maximum 15, Lowest daily maximum 23, Highest daily minimum 30, Lowest daily minimum 41, Heaviest daily rainfall 184, Heaviest daily snowfall 5, Deepest snow cover 1.

Records on 11 May 1964 by type
Record type	Records
Highest daily maximum	15
Lowest daily maximum	23
Highest daily minimum	30
Lowest daily minimum	41
Heaviest daily rainfall	184
Heaviest daily snowfall	5
Deepest snow cover	1

Records on 11 May 1964 by timescale: all-time 0, monthly 9, daily 290.

How Much Records Were Beaten By

258 broken records

Margins by which the 258 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 76.0. Ties are not counted.

Top 20 by Significance

11 May 1964

Top 20 records on 11 May 1964 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 May 1964	Cimarron, US	monthly rain	146.1 mm (5.8 in)	69.9 mm (2.8 in)	28 years	63 of 100 (Major)
11 May 1964	Parsa, IN	daily rain	51.6 mm (2.0 in)	44.0 mm (1.7 in)	47 years	55 of 100 (Notable)
11 May 1964	Kingfisher, US	daily rain	93.5 mm (3.7 in)	49.8 mm (2.0 in)	64 years	55 of 100 (Notable)
11 May 1964	Scott City, US	daily rain	55.4 mm (2.2 in)	32.8 mm (1.3 in)	56 years	54 of 100 (Notable)
11 May 1964	Chandler, US	daily rain	84.3 mm (3.3 in)	58.9 mm (2.3 in)	44 years	50 of 100 (Notable)
11 May 1964	Guthrie 5S, US	daily rain	99.1 mm (3.9 in)	54.6 mm (2.1 in)	44 years	49 of 100 (Notable)
11 May 1964	Enid, US	daily rain	72.1 mm (2.8 in)	31.5 mm (1.2 in)	61 years	44 of 100 (Notable)
11 May 1964	Ft Meade, US	daily rain	33.5 mm (1.3 in)	28.4 mm (1.1 in)	54 years	43 of 100 (Notable)
11 May 1964	Zilverhout, ZA	daily rain	35.5 mm (1.4 in)	35.5 mm (1.4 in)	33 years	42 of 100 (Notable)
11 May 1964	Sharon Springs, US	daily rain	44.2 mm (1.7 in)	30.0 mm (1.2 in)	34 years	40 of 100 (Notable)
11 May 1964	Weatherford, US	daily rain	84.8 mm (3.3 in)	34.0 mm (1.3 in)	44 years	40 of 100 (Notable)
11 May 1964	Dumont 2 ENE, US	daily rain	46.0 mm (1.8 in)	23.6 mm (0.9 in)	42 years	40 of 100 (Notable)
11 May 1964	Novosibirsk, RU	daily rain	25.9 mm (1.0 in)	16.8 mm (0.7 in)	7 years	38 of 100 (Notable)
11 May 1964	Wyola 1 SW, US	daily rain	42.4 mm (1.7 in)	20.6 mm (0.8 in)	17 years	38 of 100 (Notable)
11 May 1964	Baswa, IN	monthly rain	57.1 mm (2.2 in)	23.3 mm (0.9 in)	4 years	37 of 100 (Notable)
11 May 1964	Basantpur, IN	monthly rain	90.0 mm (3.5 in)	29.0 mm (1.1 in)	15 years	36 of 100 (Notable)
11 May 1964	Perkins, US	daily rain	94.7 mm (3.7 in)	53.0 mm (2.1 in)	14 years	36 of 100 (Notable)
11 May 1964	Jackson Exp STN, US	daily rain	41.7 mm (1.6 in)	13.8 mm (0.5 in)	64 years	35 of 100 (Notable)
11 May 1964	Subiaco, US	daily rain	67.3 mm (2.6 in)	41.9 mm (1.6 in)	18 years	34 of 100 (Routine)
11 May 1964	New Bedford Coop, US	daily high min	15.0 C (59.0 F)	2.2 C (4.0 F)	68 years	33 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

1814 to 1964

Records set or tied on this calendar date in each year from 1814 to 1964. 1964 had 299 records.

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

Records on 05-11 in each year
Year	Records
1814	3
1832	1
1836	3
1837	1
1838	1
1848	2
1856	1
1860	2
1865	1
1867	1
1869	1
1872	1
1874	2
1879	2
1880	1
1881	5
1883	3
1884	2
1885	1
1886	2
1887	1
1888	1
1889	2
1892	1
1893	3
1894	2
1895	4
1896	3
1897	6
1898	5
1900	7
1901	9
1902	6
1903	7
1904	6
1905	12
1906	21
1907	44
1908	9
1909	12
1910	16
1911	99
1912	21
1913	20
1914	20
1915	16
1916	22
1917	40
1918	54
1919	56
1920	181
1921	58
1922	61
1923	111
1924	239
1925	410
1926	472
1927	318
1928	252
1929	126
1930	380
1931	254
1932	170
1933	429
1934	332
1935	276
1936	363
1937	170
1938	141
1939	213
1940	340
1941	411
1942	389
1943	646
1944	408
1945	483
1946	747
1947	480
1948	407
1949	451
1950	285
1951	395
1952	629
1953	686
1954	492
1955	235
1956	942
1957	439
1958	499
1959	575
1960	809
1961	663
1962	670
1963	984
1964	299
1965	356
1966	992
1967	974
1968	909
1969	349
1970	764
1971	565
1972	673
1973	429
1974	795
1975	383
1976	509
1977	836
1978	1,070
1979	1,239
1980	693
1981	1,298
1982	624
1983	930
1984	666
1985	835
1986	684
1987	1,247
1988	485
1989	952
1990	935
1991	990
1992	728
1993	1,088
1994	633
1995	1,244
1996	1,088
1997	1,033
1998	1,315
1999	1,052
2000	1,286
2001	848
2002	845
2003	1,321
2004	834
2005	944
2006	822
2007	833
2008	1,015
2009	605
2010	1,292
2011	1,414
2012	1,181
2013	615
2014	662
2015	1,038
2016	497
2017	546
2018	988
2019	915
2020	1,068
2021	590
2022	1,470
2023	390
2024	579
2025	1,104
2026	797

Download the Data

Data for records on 1964-05-11: 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	200
10 to 20	30
20 to 30	13
30 to 40	5
40 to 50	4
50 to 60	4
60 to 70	1
70 to 80	1