Weather Records on 17 August 1966

496 weather records were set or tied worldwide on 17 August 1966. Highest significance: Badarwah, IN.

Key Facts for 17 August 1966

On 17 August 1966, 496 weather records were set or tied at long-record stations worldwide.
151 were record highs and 79 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 11 monthly and 483 daily.
Badarwah set a daily record precipitation of 55.0 mm (2.2 in) on 17 August 1966.
Across 162 earlier years (1797 to 2026) the same calendar date averaged 474 records.

Record Map

496 stations

496 station records on 17 August 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 August 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Badarwah	India	Record daily precipitation	55.0 mm (2.2 in)	58 of 100 (Notable)
Glomfjord	Norway	Record daily precipitation	82.7 mm (3.3 in)	57 of 100 (Notable)
Tabulam Post Office	Australia	Record daily precipitation	47.0 mm (1.9 in)	56 of 100 (Notable)
Dunderlandsdalen	Norway	Record daily precipitation	63.4 mm (2.5 in)	55 of 100 (Notable)
Krakmo	Norway	Record daily precipitation	41.2 mm (1.6 in)	53 of 100 (Notable)
Yamburgan	Australia	Record daily precipitation	35.6 mm (1.4 in)	50 of 100 (Notable)
Indian Lake 2SW	United States	Record daily precipitation	66.3 mm (2.6 in)	50 of 100 (Notable)
Scranton	United States	Record daily precipitation	83.3 mm (3.3 in)	50 of 100 (Notable)
Guerrero (Smn)	Mexico	Record daily precipitation	89.9 mm (3.5 in)	49 of 100 (Notable)
Beiarn	Norway	Record daily precipitation	39.4 mm (1.6 in)	49 of 100 (Notable)
Baratria	Australia	Record daily precipitation	28.4 mm (1.1 in)	48 of 100 (Notable)
Carrizozo 1SW	United States	Record daily precipitation	46.5 mm (1.8 in)	47 of 100 (Notable)
Sacramento 5 ESE	United States	Record high minimum temperature	23.3 C (73.9 F)	42 of 100 (Notable)
Steigen	Norway	Record daily precipitation	43.1 mm (1.7 in)	40 of 100 (Notable)
Americus	United States	Record daily precipitation	70.1 mm (2.8 in)	40 of 100 (Notable)
Laurel	United States	Record daily precipitation	62.7 mm (2.5 in)	39 of 100 (Notable)
Northfield	United States	Record daily precipitation	32.3 mm (1.3 in)	39 of 100 (Notable)
Saint John	Canada	Record high minimum temperature	16.1 C (61.0 F)	38 of 100 (Notable)
Snake Creek Powerhouse	United States	Record high maximum temperature	36.7 C (98.1 F)	37 of 100 (Notable)
Narasannapeta	India	Record daily precipitation	115.0 mm (4.5 in)	36 of 100 (Notable)
Malsiras	India	Record daily precipitation	38.7 mm (1.5 in)	36 of 100 (Notable)
Riva	Italy	Record low minimum temperature	11.0 C (51.8 F)	36 of 100 (Notable)
Kapskarmo	Norway	Record daily precipitation	28.9 mm (1.1 in)	36 of 100 (Notable)
Coupeville 1 S	United States	Record low minimum temperature	5.0 C (41.0 F)	35 of 100 (Notable)
Salzburg	Austria	Record low minimum temperature	7.6 C (45.7 F)	34 of 100 (Routine)
Gandai	India	Record daily precipitation	95.0 mm (3.7 in)	34 of 100 (Routine)
Ponce 4 E	Puerto Rico [United States]	Record high minimum temperature	27.2 C (81.0 F)	34 of 100 (Routine)
South Edwards 1 E	United States	Record daily precipitation	64.0 mm (2.5 in)	34 of 100 (Routine)
Gouldsboro	United States	Record daily precipitation	50.0 mm (2.0 in)	34 of 100 (Routine)
Sacramento 5 ESE	United States	Record high maximum temperature	41.1 C (106.0 F)	34 of 100 (Routine)
Riva	Italy	Record low maximum temperature	14.0 C (57.2 F)	33 of 100 (Routine)
Newport	United States	Record daily precipitation	66.8 mm (2.6 in)	33 of 100 (Routine)
Akron	United States	Record daily precipitation	66.5 mm (2.6 in)	33 of 100 (Routine)
Haina 214	United States	Record low maximum temperature	22.8 C (73.0 F)	33 of 100 (Routine)
Delta	United States	Record daily precipitation	45.0 mm (1.8 in)	32 of 100 (Routine)
Old Forge	United States	Record daily precipitation	28.7 mm (1.1 in)	32 of 100 (Routine)
Allakaket	United States	Record low maximum temperature	7.8 C (46.0 F)	32 of 100 (Routine)
Harkerville (Bos)	South Africa	Record daily precipitation	34.0 mm (1.3 in)	31 of 100 (Routine)
Waynesville 1 E	United States	Record high minimum temperature	20.0 C (68.0 F)	31 of 100 (Routine)
Waren	Germany	Record low minimum temperature	6.9 C (44.4 F)	30 of 100 (Routine)
Girona (Antic Institut)	Spain	Record low minimum temperature	10.6 C (51.1 F)	30 of 100 (Routine)
Hawley 1 E	United States	Record daily precipitation	53.1 mm (2.1 in)	30 of 100 (Routine)
Greeneville Exp STN	United States	Record high minimum temperature	21.7 C (71.1 F)	30 of 100 (Routine)
Damascus	United States	Record daily precipitation	36.1 mm (1.4 in)	30 of 100 (Routine)
Dodge City	United States	Record daily precipitation	42.9 mm (1.7 in)	30 of 100 (Routine)
Inukjuak Ua	Canada	Record high minimum temperature	13.3 C (55.9 F)	29 of 100 (Routine)
Ferrara	Italy	Record daily precipitation	41.3 mm (1.6 in)	29 of 100 (Routine)
Nord-Rana	Norway	Record daily precipitation	44.6 mm (1.8 in)	29 of 100 (Routine)
Fallon Exp STN	United States	Record high maximum temperature	38.3 C (100.9 F)	29 of 100 (Routine)
Paupack 1 WSW	United States	Record daily precipitation	57.9 mm (2.3 in)	29 of 100 (Routine)
Tullahoma	United States	Record daily precipitation	44.7 mm (1.8 in)	29 of 100 (Routine)
Aachen	Germany	Record low minimum temperature	7.9 C (46.2 F)	28 of 100 (Routine)
Altastenberg	Germany	Record low minimum temperature	5.4 C (41.7 F)	28 of 100 (Routine)
Palacode	India	Record daily precipitation	58.0 mm (2.3 in)	28 of 100 (Routine)
Jonesboro 3 SSE	United States	Record daily precipitation	58.9 mm (2.3 in)	28 of 100 (Routine)
Osceola	United States	Record daily precipitation	50.8 mm (2.0 in)	28 of 100 (Routine)
Tiger Creek Ph	United States	Record high minimum temperature	19.4 C (66.9 F)	28 of 100 (Routine)
Windsor	United States	Record daily precipitation	44.2 mm (1.7 in)	28 of 100 (Routine)
Clarington Lock 14	United States	Record daily precipitation	51.1 mm (2.0 in)	28 of 100 (Routine)
Clayton Muni Air Pk	United States	Record daily precipitation	32.3 mm (1.3 in)	28 of 100 (Routine)

Counts by Type and Timescale

496 records

Records set or tied on 17 August 1966 by type: Highest daily maximum 64, Lowest daily maximum 30, Highest daily minimum 87, Lowest daily minimum 49, Heaviest daily rainfall 266.

Records on 17 August 1966 by type
Record type	Records
Highest daily maximum	64
Lowest daily maximum	30
Highest daily minimum	87
Lowest daily minimum	49
Heaviest daily rainfall	266
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 August 1966 by timescale: all-time 2, monthly 11, daily 483.

How Much Records Were Beaten By

405 broken records

Margins by which the 405 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 65.5. Ties are not counted.

Top 20 by Significance

17 August 1966

Top 20 records on 17 August 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 August 1966	Badarwah, IN	daily rain	55.0 mm (2.2 in)	39.8 mm (1.6 in)	52 years	58 of 100 (Notable)
17 August 1966	Glomfjord, NO	daily rain	82.7 mm (3.3 in)	38.4 mm (1.5 in)	45 years	57 of 100 (Notable)
17 August 1966	Tabulam Post Office, AU	daily rain	47.0 mm (1.9 in)	28.5 mm (1.1 in)	69 years	56 of 100 (Notable)
17 August 1966	Dunderlandsdalen, NO	monthly rain	63.4 mm (2.5 in)	18.4 mm (0.7 in)	24 years	55 of 100 (Notable)
17 August 1966	Krakmo, NO	daily rain	41.2 mm (1.6 in)	22.0 mm (0.9 in)	45 years	53 of 100 (Notable)
17 August 1966	Yamburgan, AU	daily rain	35.6 mm (1.4 in)	29.8 mm (1.2 in)	48 years	50 of 100 (Notable)
17 August 1966	Indian Lake 2SW, US	daily rain	66.3 mm (2.6 in)	47.5 mm (1.9 in)	13 years	50 of 100 (Notable)
17 August 1966	Scranton, US	daily rain	83.3 mm (3.3 in)	65.5 mm (2.6 in)	20 years	50 of 100 (Notable)
17 August 1966	Guerrero (Smn), MX	all-time rain	89.9 mm (3.5 in)	14.0 mm (0.6 in)	24 years	49 of 100 (Notable)
17 August 1966	Beiarn, NO	daily rain	39.4 mm (1.6 in)	19.0 mm (0.7 in)	45 years	49 of 100 (Notable)
17 August 1966	Baratria, AU	daily rain	28.4 mm (1.1 in)	28.4 mm (1.1 in)	52 years	48 of 100 (Notable)
17 August 1966	Carrizozo 1SW, US	daily rain	46.5 mm (1.8 in)	33.8 mm (1.3 in)	9 years	47 of 100 (Notable)
17 August 1966	Sacramento 5 ESE, US	daily high min	23.3 C (73.9 F)	2.2 C (4.0 F)	80 years	42 of 100 (Notable)
17 August 1966	Steigen, NO	daily rain	43.1 mm (1.7 in)	20.3 mm (0.8 in)	21 years	40 of 100 (Notable)
17 August 1966	Americus, US	daily rain	70.1 mm (2.8 in)	18.5 mm (0.7 in)	64 years	40 of 100 (Notable)
17 August 1966	Laurel, US	daily rain	62.7 mm (2.5 in)	22.1 mm (0.9 in)	55 years	39 of 100 (Notable)
17 August 1966	Northfield, US	daily rain	32.3 mm (1.3 in)	18.1 mm (0.7 in)	48 years	39 of 100 (Notable)
17 August 1966	Saint John, CA	daily high min	16.1 C (61.0 F)	0.5 C (0.9 F)	90 years	38 of 100 (Notable)
17 August 1966	Snake Creek Powerhouse, US	all-time high max	36.7 C (98.1 F)	0.6 C (1.1 F)	35 years	37 of 100 (Notable)
17 August 1966	Narasannapeta, IN	daily rain	115.0 mm (4.5 in)	48.7 mm (1.9 in)	23 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

1797 to 1966

Records set or tied on this calendar date in each year from 1797 to 1966. 1966 had 496 records.

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

Records on 08-17 in each year
Year	Records
1797	2
1802	2
1820	2
1837	1
1838	2
1841	2
1842	1
1845	2
1853	1
1854	1
1856	1
1857	1
1861	3
1862	1
1867	1
1868	3
1869	1
1872	1
1875	2
1876	5
1879	1
1881	1
1882	1
1883	2
1885	3
1886	1
1888	5
1891	1
1892	3
1893	2
1894	3
1895	2
1896	3
1897	1
1898	5
1899	8
1900	3
1901	14
1902	7
1903	6
1904	2
1905	11
1906	28
1907	9
1908	26
1909	24
1910	17
1911	18
1912	31
1913	79
1914	41
1915	28
1916	33
1917	35
1918	112
1919	37
1920	110
1921	37
1922	169
1923	161
1924	171
1925	130
1926	182
1927	228
1928	131
1929	243
1930	138
1931	302
1932	360
1933	260
1934	377
1935	437
1936	670
1937	726
1938	466
1939	364
1940	341
1941	378
1942	461
1943	743
1944	531
1945	387
1946	433
1947	682
1948	475
1949	371
1950	522
1951	413
1952	470
1953	345
1954	685
1955	465
1956	407
1957	504
1958	519
1959	543
1960	533
1961	998
1962	445
1963	650
1964	410
1965	641
1966	496
1967	679
1968	953
1969	593
1970	467
1971	447
1972	1,044
1973	750
1974	582
1975	612
1976	797
1977	1,216
1978	814
1979	1,464
1980	895
1981	1,112
1982	554
1983	1,574
1984	726
1985	948
1986	916
1987	1,150
1988	1,608
1989	687
1990	949
1991	560
1992	1,813
1993	803
1994	1,038
1995	1,724
1996	752
1997	1,544
1998	1,003
1999	697
2000	994
2001	1,101
2002	1,266
2003	948
2004	1,046
2005	722
2006	814
2007	1,646
2008	1,301
2009	922
2010	1,105
2011	956
2012	1,215
2013	802
2014	997
2015	890
2016	748
2017	544
2018	518
2019	467
2020	1,529
2021	800
2022	1,428
2023	1,032
2024	740
2025	538
2026	535

Download the Data

Data for records on 1966-08-17: 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	324
10 to 20	49
20 to 30	21
30 to 40	7
40 to 50	3
50 to 60	0
60 to 70	1