Weather Records on 27 August 1966

406 weather records were set or tied worldwide on 27 August 1966. Highest significance: Uman, UA.

Key Facts for 27 August 1966

On 27 August 1966, 406 weather records were set or tied at long-record stations worldwide.
93 were record highs and 169 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 11 monthly and 395 daily.
Uman set a monthly record daily precipitation of 97.8 mm (3.9 in) on 27 August 1966.
Across 165 earlier years (1807 to 2026) the same calendar date averaged 438 records.

Record Map

406 stations

406 station records on 27 August 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 August 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Uman	Ukraine	Record daily precipitation	97.8 mm (3.9 in)	63 of 100 (Major)
Fort Macleod	Canada	Record daily precipitation	39.1 mm (1.5 in)	62 of 100 (Major)
Pleasant Valley	United States	Record daily precipitation	36.8 mm (1.4 in)	52 of 100 (Notable)
Sion	Canada	Record daily precipitation	47.5 mm (1.9 in)	46 of 100 (Notable)
Hunsur	India	Record daily precipitation	76.2 mm (3.0 in)	46 of 100 (Notable)
Beaverlodge Cda	Canada	Record daily precipitation	53.3 mm (2.1 in)	45 of 100 (Notable)
Campsie	Canada	Record daily precipitation	36.6 mm (1.4 in)	43 of 100 (Notable)
Brackettville	United States	Record low maximum temperature	23.9 C (75.0 F)	42 of 100 (Notable)
Nizhnyj Tagil	Russia	Record daily precipitation	32.2 mm (1.3 in)	39 of 100 (Notable)
Barcelona -Fabra Observatory	Spain	Record daily precipitation	31.4 mm (1.2 in)	38 of 100 (Notable)
Baldonnel	Canada	Record daily precipitation	30.7 mm (1.2 in)	37 of 100 (Notable)
Georgetown	United States	Record low maximum temperature	27.8 C (82.0 F)	35 of 100 (Notable)
Freiburg	Germany	Record low minimum temperature	4.5 C (40.1 F)	34 of 100 (Routine)
Entrance	Canada	Record daily precipitation	25.9 mm (1.0 in)	33 of 100 (Routine)
Mannargudi	India	Record daily precipitation	74.0 mm (2.9 in)	33 of 100 (Routine)
Tripoli Sidi El Mesri	Libya	Record high maximum temperature	47.0 C (116.6 F)	33 of 100 (Routine)
Innsbruck	Austria	Record low minimum temperature	3.4 C (38.1 F)	32 of 100 (Routine)
Strelka	Russia	Record daily precipitation	27.8 mm (1.1 in)	32 of 100 (Routine)
Millen 4 N	United States	Record low minimum temperature	12.8 C (55.0 F)	32 of 100 (Routine)
Sulphur Springs	United States	Record low minimum temperature	13.9 C (57.0 F)	32 of 100 (Routine)
Waiahi Lower 1054	United States	Record daily precipitation	61.0 mm (2.4 in)	32 of 100 (Routine)
Tartu	Estonia	Record low minimum temperature	4.5 C (40.1 F)	31 of 100 (Routine)
Zagreb-Gric	Croatia	Record low minimum temperature	7.6 C (45.7 F)	31 of 100 (Routine)
Kazan	Russia	Record daily precipitation	26.2 mm (1.0 in)	31 of 100 (Routine)
Kerrville	United States	Record low maximum temperature	20.0 C (68.0 F)	31 of 100 (Routine)
Mylor	Australia	Record daily precipitation	40.1 mm (1.6 in)	30 of 100 (Routine)
Red Deer	Canada	Record high minimum temperature	13.3 C (55.9 F)	30 of 100 (Routine)
Dhandhuka	India	Record daily precipitation	48.0 mm (1.9 in)	30 of 100 (Routine)
Salekhard	Russia	Record low minimum temperature	-2.8 C (27.0 F)	30 of 100 (Routine)
Jonkoping	Sweden	Record low minimum temperature	2.0 C (35.6 F)	30 of 100 (Routine)
Corsicana	United States	Record low minimum temperature	16.1 C (61.0 F)	30 of 100 (Routine)
Rockingham Post Office	Australia	Record daily precipitation	34.5 mm (1.4 in)	29 of 100 (Routine)
Kaunas	Lithuania	Record low minimum temperature	4.9 C (40.8 F)	29 of 100 (Routine)
Robertson	South Africa	Record daily precipitation	30.0 mm (1.2 in)	29 of 100 (Routine)
Everglades	United States	Record low maximum temperature	28.3 C (82.9 F)	29 of 100 (Routine)
Mexia	United States	Record low minimum temperature	16.7 C (62.1 F)	29 of 100 (Routine)
Hakalau 142	United States	Record daily precipitation	57.2 mm (2.3 in)	29 of 100 (Routine)
Big Creek	Canada	Record high minimum temperature	10.6 C (51.1 F)	28 of 100 (Routine)
Iguala (Smn)	Mexico	Record daily precipitation	49.8 mm (2.0 in)	28 of 100 (Routine)
Vjazemskaja	Russia	Record daily precipitation	57.9 mm (2.3 in)	28 of 100 (Routine)
Rayne 6 N	United States	Record low minimum temperature	17.8 C (64.0 F)	28 of 100 (Routine)
Eagle Pass 3N	United States	Record low maximum temperature	23.9 C (75.0 F)	28 of 100 (Routine)
Oberstdorf	Germany	Record low minimum temperature	-0.2 C (31.6 F)	27 of 100 (Routine)
Dassieshoek	South Africa	Record daily precipitation	37.5 mm (1.5 in)	27 of 100 (Routine)
Runge	United States	Record daily precipitation	26.7 mm (1.1 in)	27 of 100 (Routine)
San Marcos	United States	Record low maximum temperature	21.1 C (70.0 F)	27 of 100 (Routine)
Revelstoke	Canada	Record high minimum temperature	14.4 C (57.9 F)	26 of 100 (Routine)
Meanook	Canada	Record daily precipitation	30.5 mm (1.2 in)	26 of 100 (Routine)
Liepaja	Latvia	Record low minimum temperature	7.6 C (45.7 F)	26 of 100 (Routine)
Elatma	Russia	Record low minimum temperature	1.9 C (35.4 F)	26 of 100 (Routine)
Zuerich/Fluntern	Switzerland	Record low minimum temperature	5.2 C (41.4 F)	26 of 100 (Routine)
Statesville 2 NNE	United States	Record low minimum temperature	10.0 C (50.0 F)	26 of 100 (Routine)
Kaufman 3 SE	United States	Record low minimum temperature	15.6 C (60.1 F)	26 of 100 (Routine)
Honomu Mauka 138	United States	Record daily precipitation	170.2 mm (6.7 in)	26 of 100 (Routine)
Three Hills	Canada	Record high minimum temperature	13.9 C (57.0 F)	25 of 100 (Routine)
Gleichen	Canada	Record high minimum temperature	15.0 C (59.0 F)	25 of 100 (Routine)
Boyanup	Australia	Record daily precipitation	34.5 mm (1.4 in)	24 of 100 (Routine)
Lacombe Cda	Canada	Record high minimum temperature	13.3 C (55.9 F)	24 of 100 (Routine)
Claresholm Meadow Creek	Canada	Record daily precipitation	63.0 mm (2.5 in)	24 of 100 (Routine)
Iron River	Canada	Record high minimum temperature	15.0 C (59.0 F)	24 of 100 (Routine)

Counts by Type and Timescale

406 records

Records set or tied on 27 August 1966 by type: Highest daily maximum 34, Lowest daily maximum 65, Highest daily minimum 59, Lowest daily minimum 104, Heaviest daily rainfall 144.

Records on 27 August 1966 by type
Record type	Records
Highest daily maximum	34
Lowest daily maximum	65
Highest daily minimum	59
Lowest daily minimum	104
Heaviest daily rainfall	144
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 27 August 1966 by timescale: all-time 0, monthly 11, daily 395.

How Much Records Were Beaten By

318 broken records

Margins by which the 318 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 44.2. Ties are not counted.

Top 20 by Significance

27 August 1966

Top 20 records on 27 August 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 August 1966	Uman, UA	monthly rain	97.8 mm (3.9 in)	35.1 mm (1.4 in)	18 years	63 of 100 (Major)
27 August 1966	Fort Macleod, CA	daily rain	39.1 mm (1.5 in)	33.3 mm (1.3 in)	59 years	62 of 100 (Major)
27 August 1966	Pleasant Valley, US	daily rain	36.8 mm (1.4 in)	23.8 mm (0.9 in)	20 years	52 of 100 (Notable)
27 August 1966	Sion, CA	daily rain	47.5 mm (1.9 in)	34.8 mm (1.4 in)	0 years	46 of 100 (Notable)
27 August 1966	Hunsur, IN	daily rain	76.2 mm (3.0 in)	37.6 mm (1.5 in)	33 years	46 of 100 (Notable)
27 August 1966	Beaverlodge Cda, CA	daily rain	53.3 mm (2.1 in)	44.2 mm (1.7 in)	0 years	45 of 100 (Notable)
27 August 1966	Campsie, CA	daily rain	36.6 mm (1.4 in)	19.1 mm (0.8 in)	56 years	43 of 100 (Notable)
27 August 1966	Brackettville, US	daily low max	23.9 C (75.0 F)	5.0 C (9.0 F)	51 years	42 of 100 (Notable)
27 August 1966	Nizhnyj Tagil, RU	daily rain	32.2 mm (1.3 in)	20.0 mm (0.8 in)	16 years	39 of 100 (Notable)
27 August 1966	Barcelona -Fabra Observatory, ES	daily rain	31.4 mm (1.2 in)	23.8 mm (0.9 in)	52 years	38 of 100 (Notable)
27 August 1966	Baldonnel, CA	daily rain	30.7 mm (1.2 in)	20.5 mm (0.8 in)	19 years	37 of 100 (Notable)
27 August 1966	Georgetown, US	daily low max	27.8 C (82.0 F)	2.8 C (5.0 F)	60 years	35 of 100 (Notable)
27 August 1966	Freiburg, DE	monthly low min	4.5 C (40.1 F)	0.7 C (1.3 F)	47 years	34 of 100 (Routine)
27 August 1966	Entrance, CA	daily rain	25.9 mm (1.0 in)	20.6 mm (0.8 in)	16 years	33 of 100 (Routine)
27 August 1966	Mannargudi, IN	daily rain	74.0 mm (2.9 in)	19.6 mm (0.8 in)	56 years	33 of 100 (Routine)
27 August 1966	Tripoli Sidi El Mesri, LY	daily high max	47.0 C (116.6 F)	7.1 C (12.8 F)	35 years	33 of 100 (Routine)
27 August 1966	Innsbruck, AT	daily low min	3.4 C (38.1 F)	0.8 C (1.4 F)	69 years	32 of 100 (Routine)
27 August 1966	Strelka, RU	daily rain	27.8 mm (1.1 in)	14.8 mm (0.6 in)	9 years	32 of 100 (Routine)
27 August 1966	Millen 4 N, US	daily low min	12.8 C (55.0 F)	2.8 C (5.0 F)	40 years	32 of 100 (Routine)
27 August 1966	Sulphur Springs, US	daily low min	13.9 C (57.0 F)	1.7 C (3.1 F)	60 years	32 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

1807 to 1966

Records set or tied on this calendar date in each year from 1807 to 1966. 1966 had 406 records.

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

Records on 08-27 in each year
Year	Records
1807	3
1810	1
1811	1
1813	1
1816	1
1827	1
1829	1
1834	1
1846	1
1847	1
1848	1
1854	1
1857	1
1858	1
1859	1
1863	1
1864	3
1865	2
1869	1
1870	1
1871	1
1874	1
1876	1
1877	4
1880	1
1881	2
1882	1
1884	3
1885	2
1886	2
1887	2
1889	1
1890	10
1891	4
1892	1
1894	7
1895	1
1896	4
1899	5
1900	5
1901	6
1902	2
1903	22
1904	4
1905	16
1906	27
1907	9
1908	10
1909	10
1910	6
1911	16
1912	40
1913	10
1914	31
1915	37
1916	106
1917	57
1918	18
1919	78
1920	36
1921	27
1922	52
1923	63
1924	245
1925	102
1926	143
1927	395
1928	197
1929	80
1930	247
1931	205
1932	355
1933	368
1934	249
1935	348
1936	806
1937	679
1938	374
1939	191
1940	468
1941	504
1942	476
1943	581
1944	811
1945	414
1946	345
1947	291
1948	987
1949	475
1950	380
1951	415
1952	402
1953	712
1954	594
1955	485
1956	387
1957	615
1958	213
1959	522
1960	365
1961	365
1962	577
1963	335
1964	400
1965	440
1966	406
1967	887
1968	517
1969	780
1970	1,361
1971	640
1972	722
1973	1,519
1974	722
1975	506
1976	565
1977	793
1978	671
1979	917
1980	478
1981	998
1982	828
1983	823
1984	683
1985	660
1986	1,072
1987	1,356
1988	601
1989	854
1990	761
1991	813
1992	1,657
1993	1,087
1994	696
1995	1,143
1996	968
1997	1,189
1998	1,387
1999	1,258
2000	865
2001	1,304
2002	1,027
2003	916
2004	1,037
2005	733
2006	1,090
2007	958
2008	885
2009	701
2010	1,045
2011	1,518
2012	626
2013	629
2014	582
2015	832
2016	968
2017	838
2018	933
2019	1,013
2020	777
2021	635
2022	470
2023	953
2024	600
2025	1,218
2026	815

Download the Data

Data for records on 1966-08-27: 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	280
10 to 20	26
20 to 30	6
30 to 40	5
40 to 50	1