Weather Records on 16 August 1966

433 weather records were set or tied worldwide on 16 August 1966. Highest significance: Henichesk, UA.

Key Facts for 16 August 1966

On 16 August 1966, 433 weather records were set or tied at long-record stations worldwide.
144 were record highs and 81 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 10 monthly and 423 daily.
Henichesk set a daily record precipitation of 37.1 mm (1.5 in) on 16 August 1966.
Across 164 earlier years (1793 to 2026) the same calendar date averaged 466 records.

Record Map

433 stations

433 station records on 16 August 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 16 August 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Henichesk	Ukraine	Record daily precipitation	37.1 mm (1.5 in)	60 of 100 (Major)
Heaslip	Canada	Record daily precipitation	38.1 mm (1.5 in)	51 of 100 (Notable)
S Haven	United States	Record daily precipitation	120.7 mm (4.8 in)	49 of 100 (Notable)
Simferopol	Ukraine	Record daily precipitation	31.6 mm (1.2 in)	48 of 100 (Notable)
Warren 3 S	United States	Record daily precipitation	39.6 mm (1.6 in)	48 of 100 (Notable)
Trois Rivieres	Canada	Record daily precipitation	96.5 mm (3.8 in)	47 of 100 (Notable)
Dongara	Australia	Record daily precipitation	25.9 mm (1.0 in)	43 of 100 (Notable)
St Lin des Laurentides	Canada	Record daily precipitation	73.7 mm (2.9 in)	41 of 100 (Notable)
Augsburg (Sankt Stephan)	Germany	Record low maximum temperature	11.8 C (53.2 F)	40 of 100 (Notable)
Montreal McGill	Canada	Record daily precipitation	50.3 mm (2.0 in)	39 of 100 (Notable)
Amos	Canada	Record daily precipitation	59.9 mm (2.4 in)	39 of 100 (Notable)
Harrison	United States	Record daily precipitation	66.5 mm (2.6 in)	39 of 100 (Notable)
Sorel	Canada	Record daily precipitation	78.2 mm (3.1 in)	38 of 100 (Notable)
Dullabcherra	India	Record daily precipitation	141.2 mm (5.6 in)	38 of 100 (Notable)
Millington 3 SE	United States	Record daily precipitation	29.0 mm (1.1 in)	37 of 100 (Notable)
Ludhiana	India	Record daily precipitation	88.2 mm (3.5 in)	36 of 100 (Notable)
Howell Wwtp	United States	Record daily precipitation	46.2 mm (1.8 in)	36 of 100 (Notable)
Cloudcroft	United States	Record daily precipitation	39.4 mm (1.6 in)	35 of 100 (Notable)
Dadahor	India	Record daily precipitation	73.7 mm (2.9 in)	34 of 100 (Routine)
Karymskaja	Russia	Record daily precipitation	33.5 mm (1.3 in)	34 of 100 (Routine)
Cet Central England	United Kingdom	Record low minimum temperature	5.9 C (42.6 F)	34 of 100 (Routine)
Milford Gm Proving Ground	United States	Record daily precipitation	49.0 mm (1.9 in)	34 of 100 (Routine)
Innsbruck	Austria	Record low maximum temperature	13.2 C (55.8 F)	33 of 100 (Routine)
Markovo	Russia	Record daily precipitation	28.0 mm (1.1 in)	33 of 100 (Routine)
Magdeburg	Germany	Record low minimum temperature	7.3 C (45.1 F)	32 of 100 (Routine)
Ludhiana	India	Record daily precipitation	102.0 mm (4.0 in)	32 of 100 (Routine)
Porto Novo	India	Record daily precipitation	114.0 mm (4.5 in)	32 of 100 (Routine)
Barkestad	Norway	Record daily precipitation	27.0 mm (1.1 in)	32 of 100 (Routine)
Regensburg	Germany	Record low maximum temperature	11.4 C (52.5 F)	31 of 100 (Routine)
Cordes	United States	Record daily precipitation	26.2 mm (1.0 in)	31 of 100 (Routine)
Fort Huachuca	United States	Record daily precipitation	29.7 mm (1.2 in)	31 of 100 (Routine)
Sonnblick	Austria	Record daily precipitation	54.1 mm (2.1 in)	30 of 100 (Routine)
Munchen-Nymphenburg	Germany	Record low maximum temperature	11.2 C (52.2 F)	30 of 100 (Routine)
Old Forge	United States	Record daily precipitation	30.5 mm (1.2 in)	30 of 100 (Routine)
Chidambaram	India	Record daily precipitation	77.0 mm (3.0 in)	29 of 100 (Routine)
Tot-Ma	Russia	Record daily precipitation	36.0 mm (1.4 in)	29 of 100 (Routine)
Bogoroditskoye-Fenino	Russia	Record high maximum temperature	36.4 C (97.5 F)	29 of 100 (Routine)
Karlstad	Sweden	Record low minimum temperature	5.3 C (41.5 F)	29 of 100 (Routine)
Beardstown	United States	Record daily precipitation	55.9 mm (2.2 in)	29 of 100 (Routine)
Brookport Dam 52	United States	Record daily precipitation	43.9 mm (1.7 in)	29 of 100 (Routine)
Grundy Ctr	United States	Record low minimum temperature	10.0 C (50.0 F)	29 of 100 (Routine)
Red Lodge	United States	Record high maximum temperature	33.3 C (91.9 F)	29 of 100 (Routine)
The Pas	Canada	Record daily precipitation	35.6 mm (1.4 in)	28 of 100 (Routine)
St Laurent (College)	Canada	Record daily precipitation	43.7 mm (1.7 in)	28 of 100 (Routine)
Vladivostok	Russia	Record daily precipitation	40.6 mm (1.6 in)	28 of 100 (Routine)
Atlantic 1 NE	United States	Record low minimum temperature	8.9 C (48.0 F)	28 of 100 (Routine)
Albion	United States	Record daily precipitation	27.7 mm (1.1 in)	28 of 100 (Routine)
Clarksville Wwtp	United States	Record daily precipitation	71.1 mm (2.8 in)	28 of 100 (Routine)
Freiburg	Germany	Record low maximum temperature	15.6 C (60.1 F)	27 of 100 (Routine)
Palhera	India	Record daily precipitation	120.6 mm (4.7 in)	27 of 100 (Routine)
Falun	Sweden	Record low minimum temperature	3.0 C (37.4 F)	27 of 100 (Routine)
Skegness	United Kingdom	Record low minimum temperature	5.6 C (42.1 F)	27 of 100 (Routine)
Carlinville	United States	Record daily precipitation	37.8 mm (1.5 in)	27 of 100 (Routine)
Caledonia	United States	Record low minimum temperature	10.6 C (51.1 F)	27 of 100 (Routine)
Ft Valley 2 E	United States	Record daily precipitation	41.9 mm (1.6 in)	26 of 100 (Routine)
Framingham	United States	Record low maximum temperature	20.0 C (68.0 F)	26 of 100 (Routine)
Coldwater St School	United States	Record daily precipitation	43.2 mm (1.7 in)	26 of 100 (Routine)
Forsyth 2 E	United States	Record high maximum temperature	38.9 C (102.0 F)	26 of 100 (Routine)
Banner Elk	United States	Record high minimum temperature	19.4 C (66.9 F)	26 of 100 (Routine)
Kurinjipadi	India	Record daily precipitation	97.0 mm (3.8 in)	25 of 100 (Routine)

Counts by Type and Timescale

433 records

Records set or tied on 16 August 1966 by type: Highest daily maximum 87, Lowest daily maximum 44, Highest daily minimum 57, Lowest daily minimum 37, Heaviest daily rainfall 208.

Records on 16 August 1966 by type
Record type	Records
Highest daily maximum	87
Lowest daily maximum	44
Highest daily minimum	57
Lowest daily minimum	37
Heaviest daily rainfall	208
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 16 August 1966 by timescale: all-time 0, monthly 10, daily 423.

How Much Records Were Beaten By

333 broken records

Margins by which the 333 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 52.0. Ties are not counted.

Top 20 by Significance

16 August 1966

Top 20 records on 16 August 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 August 1966	Henichesk, UA	daily rain	37.1 mm (1.5 in)	28.0 mm (1.1 in)	51 years	60 of 100 (Major)
16 August 1966	Heaslip, CA	daily rain	38.1 mm (1.5 in)	33.5 mm (1.3 in)	28 years	51 of 100 (Notable)
16 August 1966	S Haven, US	monthly rain	120.7 mm (4.8 in)	35.9 mm (1.4 in)	10 years	49 of 100 (Notable)
16 August 1966	Simferopol, UA	daily rain	31.6 mm (1.2 in)	30.8 mm (1.2 in)	1 year	48 of 100 (Notable)
16 August 1966	Warren 3 S, US	daily rain	39.6 mm (1.6 in)	27.2 mm (1.1 in)	59 years	48 of 100 (Notable)
16 August 1966	Trois Rivieres, CA	daily rain	96.5 mm (3.8 in)	52.0 mm (2.0 in)	13 years	47 of 100 (Notable)
16 August 1966	Dongara, AU	daily rain	25.9 mm (1.0 in)	12.2 mm (0.5 in)	56 years	43 of 100 (Notable)
16 August 1966	St Lin des Laurentides, CA	daily rain	73.7 mm (2.9 in)	40.7 mm (1.6 in)	7 years	41 of 100 (Notable)
16 August 1966	Augsburg (Sankt Stephan), DE	monthly low max	11.8 C (53.2 F)	0.4 C (0.7 F)	75 years	40 of 100 (Notable)
16 August 1966	Montreal McGill, CA	daily rain	50.3 mm (2.0 in)	11.2 mm (0.4 in)	69 years	39 of 100 (Notable)
16 August 1966	Amos, CA	daily rain	59.9 mm (2.4 in)	21.0 mm (0.8 in)	41 years	39 of 100 (Notable)
16 August 1966	Harrison, US	daily rain	66.5 mm (2.6 in)	30.4 mm (1.2 in)	40 years	39 of 100 (Notable)
16 August 1966	Sorel, CA	daily rain	78.2 mm (3.1 in)	29.9 mm (1.2 in)	20 years	38 of 100 (Notable)
16 August 1966	Dullabcherra, IN	daily rain	141.2 mm (5.6 in)	32.5 mm (1.3 in)	48 years	38 of 100 (Notable)
16 August 1966	Millington 3 SE, US	daily rain	29.0 mm (1.1 in)	14.8 mm (0.6 in)	57 years	37 of 100 (Notable)
16 August 1966	Ludhiana, IN	daily rain	88.2 mm (3.5 in)	41.2 mm (1.6 in)	43 years	36 of 100 (Notable)
16 August 1966	Howell Wwtp, US	daily rain	46.2 mm (1.8 in)	29.7 mm (1.2 in)	13 years	36 of 100 (Notable)
16 August 1966	Cloudcroft, US	daily rain	39.4 mm (1.6 in)	14.0 mm (0.6 in)	52 years	35 of 100 (Notable)
16 August 1966	Dadahor, IN	daily rain	73.7 mm (2.9 in)	41.9 mm (1.6 in)	32 years	34 of 100 (Routine)
16 August 1966	Karymskaja, RU	daily rain	33.5 mm (1.3 in)	26.3 mm (1.0 in)	4 years	34 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

1793 to 1966

Records set or tied on this calendar date in each year from 1793 to 1966. 1966 had 433 records.

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

Records on 08-16 in each year
Year	Records
1793	1
1802	2
1811	1
1827	1
1833	1
1835	1
1838	1
1841	1
1844	2
1850	1
1856	1
1861	2
1862	1
1863	1
1868	2
1869	1
1871	1
1873	1
1875	2
1876	5
1878	1
1879	3
1880	2
1882	2
1883	2
1885	4
1886	1
1887	2
1888	5
1890	5
1891	2
1893	6
1894	1
1895	4
1896	5
1897	4
1898	6
1899	2
1900	3
1901	7
1902	5
1903	12
1904	9
1905	9
1906	11
1907	20
1908	31
1909	25
1910	14
1911	16
1912	30
1913	88
1914	10
1915	32
1916	147
1917	27
1918	72
1919	13
1920	144
1921	42
1922	148
1923	135
1924	139
1925	92
1926	165
1927	314
1928	207
1929	509
1930	158
1931	336
1932	348
1933	260
1934	504
1935	496
1936	728
1937	818
1938	700
1939	340
1940	287
1941	371
1942	447
1943	579
1944	467
1945	370
1946	313
1947	477
1948	342
1949	345
1950	305
1951	423
1952	552
1953	558
1954	648
1955	558
1956	413
1957	402
1958	1,013
1959	354
1960	518
1961	866
1962	423
1963	897
1964	831
1965	565
1966	433
1967	829
1968	824
1969	684
1970	386
1971	641
1972	997
1973	592
1974	689
1975	766
1976	1,153
1977	831
1978	835
1979	1,698
1980	855
1981	766
1982	516
1983	1,251
1984	662
1985	1,063
1986	811
1987	1,120
1988	1,594
1989	730
1990	702
1991	601
1992	2,027
1993	820
1994	1,075
1995	1,542
1996	678
1997	1,284
1998	865
1999	697
2000	873
2001	1,136
2002	1,258
2003	1,220
2004	1,239
2005	813
2006	894
2007	1,442
2008	1,183
2009	1,128
2010	1,239
2011	896
2012	670
2013	770
2014	640
2015	841
2016	786
2017	672
2018	412
2019	430
2020	1,382
2021	825
2022	1,145
2023	1,354
2024	765
2025	661
2026	661

Download the Data

Data for records on 1966-08-16: 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	272
10 to 20	37
20 to 30	12
30 to 40	8
40 to 50	3
50 to 60	1