Weather Records on 14 August 1966

388 weather records were set or tied worldwide on 14 August 1966. Highest significance: Hondo, US.

Key Facts for 14 August 1966

On 14 August 1966, 388 weather records were set or tied at long-record stations worldwide.
87 were record highs and 114 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 3 monthly and 384 daily.
Hondo set a daily record precipitation of 85.6 mm (3.4 in) on 14 August 1966.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 463 records.

Record Map

388 stations

388 station records on 14 August 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 14 August 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hondo	United States	Record daily precipitation	85.6 mm (3.4 in)	61 of 100 (Major)
Gainesville	United States	Record daily precipitation	73.2 mm (2.9 in)	58 of 100 (Notable)
Bonham 3NNE	United States	Record daily precipitation	80.0 mm (3.1 in)	56 of 100 (Notable)
Dequeen	United States	Record daily precipitation	90.2 mm (3.6 in)	47 of 100 (Notable)
Grapevine Dam	United States	Record daily precipitation	65.0 mm (2.6 in)	46 of 100 (Notable)
Hillsboro	United States	Record daily precipitation	72.4 mm (2.9 in)	44 of 100 (Notable)
Rushville	United States	Record daily precipitation	65.5 mm (2.6 in)	43 of 100 (Notable)
Falun	Sweden	Record daily precipitation	30.8 mm (1.2 in)	42 of 100 (Notable)
Russellville	United States	Record daily precipitation	102.6 mm (4.0 in)	42 of 100 (Notable)
Antlers	United States	Record daily precipitation	84.1 mm (3.3 in)	42 of 100 (Notable)
Holcombe	United States	Record daily precipitation	59.4 mm (2.3 in)	41 of 100 (Notable)
Col du Grand St-Bernard	Switzerland	Record high minimum temperature	12.5 C (54.5 F)	40 of 100 (Notable)
Clarksville 2NE	United States	Record daily precipitation	48.3 mm (1.9 in)	40 of 100 (Notable)
Shelbyville Sewage Plt	United States	Record daily precipitation	43.2 mm (1.7 in)	37 of 100 (Notable)
Uvalde	United States	Record daily precipitation	63.5 mm (2.5 in)	37 of 100 (Notable)
Fran?A	Brazil	Record daily precipitation	25.6 mm (1.0 in)	36 of 100 (Notable)
Augsburg (Sankt Stephan)	Germany	Record high minimum temperature	19.0 C (66.2 F)	36 of 100 (Notable)
Prescott 2 NNW	United States	Record daily precipitation	76.7 mm (3.0 in)	36 of 100 (Notable)
Lake Alfred Exp STN	United States	Record low minimum temperature	17.8 C (64.0 F)	36 of 100 (Notable)
Rock 1 E	United States	Record daily precipitation	29.7 mm (1.2 in)	36 of 100 (Notable)
McKinney Muni AP	United States	Record daily precipitation	50.8 mm (2.0 in)	36 of 100 (Notable)
W Manchester 3 WSW	United States	Record daily precipitation	39.6 mm (1.6 in)	35 of 100 (Notable)
Ashwood	United States	Record daily precipitation	63.8 mm (2.5 in)	35 of 100 (Notable)
Arthur City	United States	Record daily precipitation	40.6 mm (1.6 in)	34 of 100 (Routine)
Weissenburg	Germany	Record high minimum temperature	17.4 C (63.3 F)	33 of 100 (Routine)
Goldthwaite 1 WSW	United States	Record daily precipitation	56.9 mm (2.2 in)	33 of 100 (Routine)
Viljandi	Estonia	Record daily precipitation	62.6 mm (2.5 in)	32 of 100 (Routine)
Bamberg	Germany	Record high minimum temperature	16.2 C (61.2 F)	32 of 100 (Routine)
Mt Sterling	United States	Record daily precipitation	95.8 mm (3.8 in)	32 of 100 (Routine)
Hawthorne AP	United States	Record high maximum temperature	39.4 C (102.9 F)	32 of 100 (Routine)
Sonnblick	Austria	Record high minimum temperature	5.3 C (41.5 F)	31 of 100 (Routine)
Cicero Dantas	Brazil	Record daily precipitation	33.6 mm (1.3 in)	31 of 100 (Routine)
Lunner	Norway	Record daily precipitation	25.0 mm (1.0 in)	31 of 100 (Routine)
Col du Grand St-Bernard	Switzerland	Record high maximum temperature	18.0 C (64.4 F)	31 of 100 (Routine)
Holbrook	United States	Record low minimum temperature	6.1 C (43.0 F)	31 of 100 (Routine)
Searcy	United States	Record daily precipitation	50.3 mm (2.0 in)	31 of 100 (Routine)
Watersmeet	United States	Record daily precipitation	41.7 mm (1.6 in)	31 of 100 (Routine)
Lemmon	United States	Record daily precipitation	27.9 mm (1.1 in)	31 of 100 (Routine)
Greenville Kgvl Radio	United States	Record daily precipitation	68.3 mm (2.7 in)	31 of 100 (Routine)
New Cumberland L/D	United States	Record daily precipitation	26.4 mm (1.0 in)	31 of 100 (Routine)
Ariyalur	India	Record daily precipitation	56.4 mm (2.2 in)	30 of 100 (Routine)
Chita	Russia	Record low minimum temperature	2.6 C (36.7 F)	30 of 100 (Routine)
Magdalena	United States	Record low minimum temperature	7.8 C (46.0 F)	30 of 100 (Routine)
Geneva Exp STN	United States	Record low minimum temperature	7.2 C (45.0 F)	30 of 100 (Routine)
Hayward Rs	United States	Record low maximum temperature	17.8 C (64.0 F)	30 of 100 (Routine)
Fort Good Hope 2	Canada	Record low minimum temperature	-5.0 C (23.0 F)	29 of 100 (Routine)
Eidsvoll Verk	Norway	Record daily precipitation	25.4 mm (1.0 in)	29 of 100 (Routine)
Ogoron	Russia	Record daily precipitation	43.5 mm (1.7 in)	29 of 100 (Routine)
Amity	United States	Record daily precipitation	40.6 mm (1.6 in)	29 of 100 (Routine)
Cambridge City 3 N	United States	Record daily precipitation	31.2 mm (1.2 in)	29 of 100 (Routine)
New Orleans WSO City	United States	Record daily precipitation	86.4 mm (3.4 in)	29 of 100 (Routine)
Guanacevi (Smn)	Mexico	Record daily precipitation	27.9 mm (1.1 in)	28 of 100 (Routine)
Surgut	Russia	Record high minimum temperature	17.4 C (63.3 F)	28 of 100 (Routine)
Conway	United States	Record daily precipitation	25.4 mm (1.0 in)	28 of 100 (Routine)
Chaska	United States	Record daily precipitation	39.6 mm (1.6 in)	28 of 100 (Routine)
Richardton Abbey	United States	Record daily precipitation	27.2 mm (1.1 in)	28 of 100 (Routine)
Chambersburg 1 ESE	United States	Record low maximum temperature	21.7 C (71.1 F)	28 of 100 (Routine)
Pilot Point Isl du Boi	United States	Record daily precipitation	29.2 mm (1.1 in)	28 of 100 (Routine)
Rocky Mt	United States	Record low maximum temperature	21.1 C (70.0 F)	28 of 100 (Routine)
Gorlitz	Germany	Record high minimum temperature	19.6 C (67.3 F)	27 of 100 (Routine)

Counts by Type and Timescale

388 records

Records set or tied on 14 August 1966 by type: Highest daily maximum 22, Lowest daily maximum 78, Highest daily minimum 65, Lowest daily minimum 36, Heaviest daily rainfall 187.

Records on 14 August 1966 by type
Record type	Records
Highest daily maximum	22
Lowest daily maximum	78
Highest daily minimum	65
Lowest daily minimum	36
Heaviest daily rainfall	187
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 14 August 1966 by timescale: all-time 1, monthly 3, daily 384.

How Much Records Were Beaten By

316 broken records

Margins by which the 316 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 71.4. Ties are not counted.

Top 20 by Significance

14 August 1966

Top 20 records on 14 August 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
14 August 1966	Hondo, US	daily rain	85.6 mm (3.4 in)	66.5 mm (2.6 in)	59 years	61 of 100 (Major)
14 August 1966	Gainesville, US	daily rain	73.2 mm (2.9 in)	57.2 mm (2.3 in)	56 years	58 of 100 (Notable)
14 August 1966	Bonham 3NNE, US	daily rain	80.0 mm (3.1 in)	70.3 mm (2.8 in)	52 years	56 of 100 (Notable)
14 August 1966	Dequeen, US	daily rain	90.2 mm (3.6 in)	71.4 mm (2.8 in)	28 years	47 of 100 (Notable)
14 August 1966	Grapevine Dam, US	daily rain	65.0 mm (2.6 in)	42.1 mm (1.7 in)	52 years	46 of 100 (Notable)
14 August 1966	Hillsboro, US	daily rain	72.4 mm (2.9 in)	42.7 mm (1.7 in)	52 years	44 of 100 (Notable)
14 August 1966	Rushville, US	daily rain	65.5 mm (2.6 in)	29.9 mm (1.2 in)	52 years	43 of 100 (Notable)
14 August 1966	Falun, SE	daily rain	30.8 mm (1.2 in)	2.1 mm (0.08 in)	104 years	42 of 100 (Notable)
14 August 1966	Russellville, US	daily rain	102.6 mm (4.0 in)	57.9 mm (2.3 in)	4 years	42 of 100 (Notable)
14 August 1966	Antlers, US	daily rain	84.1 mm (3.3 in)	64.8 mm (2.6 in)	24 years	42 of 100 (Notable)
14 August 1966	Holcombe, US	daily rain	59.4 mm (2.3 in)	44.9 mm (1.8 in)	28 years	41 of 100 (Notable)
14 August 1966	Col du Grand St-Bernard, CH	daily high min	12.5 C (54.5 F)	2.7 C (4.9 F)	77 years	40 of 100 (Notable)
14 August 1966	Clarksville 2NE, US	daily rain	48.3 mm (1.9 in)	35.3 mm (1.4 in)	49 years	40 of 100 (Notable)
14 August 1966	Shelbyville Sewage Plt, US	daily rain	43.2 mm (1.7 in)	19.8 mm (0.8 in)	51 years	37 of 100 (Notable)
14 August 1966	Uvalde, US	daily rain	63.5 mm (2.5 in)	34.3 mm (1.4 in)	45 years	37 of 100 (Notable)
14 August 1966	Fran?A, BR	daily rain	25.6 mm (1.0 in)	16.3 mm (0.6 in)	5 years	36 of 100 (Notable)
14 August 1966	Augsburg (Sankt Stephan), DE	daily high min	19.0 C (66.2 F)	1.4 C (2.5 F)	77 years	36 of 100 (Notable)
14 August 1966	Prescott 2 NNW, US	daily rain	76.7 mm (3.0 in)	27.7 mm (1.1 in)	44 years	36 of 100 (Notable)
14 August 1966	Lake Alfred Exp STN, US	daily low min	17.8 C (64.0 F)	2.8 C (5.0 F)	29 years	36 of 100 (Notable)
14 August 1966	Rock 1 E, US	daily rain	29.7 mm (1.2 in)	17.3 mm (0.7 in)	47 years	36 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

1793 to 1966

Records set or tied on this calendar date in each year from 1793 to 1966. 1966 had 388 records.

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

Records on 08-14 in each year
Year	Records
1793	2
1807	1
1815	1
1818	1
1825	1
1833	2
1839	1
1841	1
1843	1
1845	2
1856	2
1857	1
1859	1
1861	1
1864	3
1865	1
1866	2
1868	1
1870	1
1871	1
1872	1
1873	1
1874	1
1876	4
1882	1
1884	1
1885	3
1886	1
1887	3
1889	2
1890	1
1891	1
1892	3
1893	2
1894	2
1895	3
1896	5
1897	5
1898	2
1899	2
1900	1
1901	1
1902	8
1903	8
1904	3
1905	10
1906	8
1907	6
1908	28
1909	35
1910	10
1911	30
1912	56
1913	24
1914	16
1915	17
1916	109
1917	38
1918	60
1919	103
1920	56
1921	61
1922	54
1923	92
1924	319
1925	128
1926	182
1927	147
1928	233
1929	449
1930	627
1931	410
1932	314
1933	349
1934	470
1935	314
1936	612
1937	354
1938	519
1939	376
1940	489
1941	467
1942	364
1943	583
1944	709
1945	572
1946	511
1947	658
1948	373
1949	374
1950	402
1951	458
1952	560
1953	312
1954	457
1955	535
1956	426
1957	281
1958	421
1959	495
1960	414
1961	663
1962	885
1963	811
1964	1,394
1965	451
1966	388
1967	902
1968	1,315
1969	482
1970	398
1971	677
1972	552
1973	489
1974	542
1975	461
1976	1,060
1977	562
1978	834
1979	1,115
1980	544
1981	719
1982	539
1983	775
1984	598
1985	1,095
1986	775
1987	1,157
1988	1,301
1989	728
1990	737
1991	856
1992	1,709
1993	887
1994	1,149
1995	1,444
1996	954
1997	922
1998	1,100
1999	1,329
2000	1,117
2001	806
2002	1,576
2003	1,913
2004	1,936
2005	1,340
2006	1,073
2007	1,340
2008	798
2009	818
2010	1,704
2011	772
2012	758
2013	612
2014	651
2015	931
2016	824
2017	559
2018	397
2019	578
2020	1,009
2021	932
2022	771
2023	1,116
2024	1,045
2025	798
2026	1,211

Download the Data

Data for records on 1966-08-14: 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	238
10 to 20	47
20 to 30	12
30 to 40	9
40 to 50	4
50 to 60	2
60 to 70	2
70 to 80	2