Weather Records on 11 August 1970

526 weather records were set or tied worldwide on 11 August 1970. Highest significance: Tambe (Itambe), BR.

Key Facts for 11 August 1970

On 11 August 1970, 526 weather records were set or tied at long-record stations worldwide.
158 were record highs and 194 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 13 monthly and 510 daily.
Tambe (Itambe) set a monthly record daily precipitation of 145.0 mm (5.7 in) on 11 August 1970.
Across 161 earlier years (1793 to 2026) the same calendar date averaged 460 records.

Record Map

526 stations

526 station records on 11 August 1970 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 August 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tambe (Itambe)	Brazil	Record daily precipitation	145.0 mm (5.7 in)	72 of 100 (Major)
Mamanguape	Brazil	Record daily precipitation	92.5 mm (3.6 in)	63 of 100 (Major)
Sape	Brazil	Record daily precipitation	146.0 mm (5.7 in)	62 of 100 (Major)
Abbeville 4S	United States	Record daily precipitation	124.5 mm (4.9 in)	61 of 100 (Major)
Vitoria de Santo Antao	Brazil	Record daily precipitation	82.5 mm (3.2 in)	60 of 100 (Major)
Dickson	United States	Record daily precipitation	179.1 mm (7.1 in)	59 of 100 (Notable)
Jalna	India	Record daily precipitation	86.6 mm (3.4 in)	58 of 100 (Notable)
Springfield	Canada	Record daily precipitation	88.4 mm (3.5 in)	50 of 100 (Notable)
Greensboro	United States	Record daily precipitation	83.8 mm (3.3 in)	50 of 100 (Notable)
Bananeiras	Brazil	Record daily precipitation	75.5 mm (3.0 in)	49 of 100 (Notable)
Nappan Cda	Canada	Record daily precipitation	63.2 mm (2.5 in)	49 of 100 (Notable)
Apalachicola AP	United States	Record daily precipitation	107.7 mm (4.2 in)	49 of 100 (Notable)
Bom Jardim	Brazil	Record daily precipitation	59.8 mm (2.4 in)	47 of 100 (Notable)
Gravata	Brazil	Record daily precipitation	42.2 mm (1.7 in)	47 of 100 (Notable)
Joao Pessoa	Brazil	Record daily precipitation	67.8 mm (2.7 in)	47 of 100 (Notable)
Comondu	Mexico	Record daily precipitation	47.5 mm (1.9 in)	47 of 100 (Notable)
Bainbridge	United States	Record daily precipitation	86.9 mm (3.4 in)	47 of 100 (Notable)
Chara	Russia	Record daily precipitation	32.8 mm (1.3 in)	46 of 100 (Notable)
Rienzi	South Africa	Record daily precipitation	53.1 mm (2.1 in)	45 of 100 (Notable)
Agate 3 E	United States	Record daily precipitation	33.3 mm (1.3 in)	45 of 100 (Notable)
Henderson 2 NNW	United States	Record low maximum temperature	20.0 C (68.0 F)	45 of 100 (Notable)
Akola	India	Record daily precipitation	97.5 mm (3.8 in)	43 of 100 (Notable)
Siler City 2 N	United States	Record low maximum temperature	18.9 C (66.0 F)	43 of 100 (Notable)
Luis Gomes	Brazil	Record daily precipitation	40.2 mm (1.6 in)	41 of 100 (Notable)
Port Hastings	Canada	Record daily precipitation	41.7 mm (1.6 in)	41 of 100 (Notable)
Dzhikimda	Russia	Record daily precipitation	32.4 mm (1.3 in)	41 of 100 (Notable)
Vinnytsia	Ukraine	Record daily precipitation	56.6 mm (2.2 in)	41 of 100 (Notable)
Elberton 2 N	United States	Record low maximum temperature	22.8 C (73.0 F)	40 of 100 (Notable)
Charlottetown Cda	Canada	Record daily precipitation	51.3 mm (2.0 in)	39 of 100 (Notable)
Colinet	Canada	Record daily precipitation	76.5 mm (3.0 in)	39 of 100 (Notable)
Kentville Cda	Canada	Record daily precipitation	65.8 mm (2.6 in)	38 of 100 (Notable)
New Orleans WSO City	United States	Record daily precipitation	102.4 mm (4.0 in)	38 of 100 (Notable)
Pascagoula 3 NE	United States	Record daily precipitation	80.0 mm (3.1 in)	38 of 100 (Notable)
Ghoda Ambegaon	India	Record daily precipitation	88.0 mm (3.5 in)	37 of 100 (Notable)
Haleyville	United States	Record daily precipitation	47.2 mm (1.9 in)	37 of 100 (Notable)
Ardmore 1 NW	United States	Record daily precipitation	43.4 mm (1.7 in)	37 of 100 (Notable)
Escada	Brazil	Record daily precipitation	61.3 mm (2.4 in)	36 of 100 (Notable)
Mount Uniacke	Canada	Record daily precipitation	64.5 mm (2.5 in)	36 of 100 (Notable)
Geneva	United States	Record low maximum temperature	27.8 C (82.0 F)	36 of 100 (Notable)
Camilla 3SE	United States	Record low maximum temperature	26.7 C (80.1 F)	36 of 100 (Notable)
Rocky Mt	United States	Record low maximum temperature	20.0 C (68.0 F)	36 of 100 (Notable)
Minsk	Belarus	Record high minimum temperature	17.3 C (63.1 F)	35 of 100 (Notable)
Santa Cruz	Brazil	Record daily precipitation	28.0 mm (1.1 in)	35 of 100 (Notable)
Chapel Hill 2 W	United States	Record low maximum temperature	19.4 C (66.9 F)	35 of 100 (Notable)
Istanbul	Turkey	Record high maximum temperature	40.5 C (104.9 F)	34 of 100 (Routine)
Athens	United States	Record low maximum temperature	22.2 C (72.0 F)	34 of 100 (Routine)
Baddeck	Canada	Record daily precipitation	40.9 mm (1.6 in)	33 of 100 (Routine)
Meteghan River	Canada	Record daily precipitation	38.6 mm (1.5 in)	33 of 100 (Routine)
Gisela	United States	Record daily precipitation	56.4 mm (2.2 in)	33 of 100 (Routine)
Columbus 4 ESE	United States	Record low maximum temperature	26.1 C (79.0 F)	33 of 100 (Routine)
Melrose	United States	Record daily precipitation	36.8 mm (1.4 in)	33 of 100 (Routine)
Prentice #2	United States	Record daily precipitation	58.7 mm (2.3 in)	33 of 100 (Routine)
Livingston	United States	Record low maximum temperature	27.2 C (81.0 F)	32 of 100 (Routine)
Lake City 2 E	United States	Record low maximum temperature	25.0 C (77.0 F)	32 of 100 (Routine)
St Augustine	United States	Record low maximum temperature	28.3 C (82.9 F)	32 of 100 (Routine)
Concord	United States	Record low maximum temperature	20.6 C (69.1 F)	32 of 100 (Routine)
Emery	United States	Record high maximum temperature	35.0 C (95.0 F)	32 of 100 (Routine)
Parrsboro	Canada	Record daily precipitation	63.5 mm (2.5 in)	31 of 100 (Routine)
Puerto Vallarta	Mexico	Record daily precipitation	102.9 mm (4.1 in)	31 of 100 (Routine)
Durham	United States	Record low maximum temperature	20.0 C (68.0 F)	31 of 100 (Routine)

Counts by Type and Timescale

526 records

Records set or tied on 11 August 1970 by type: Highest daily maximum 80, Lowest daily maximum 167, Highest daily minimum 78, Lowest daily minimum 27, Heaviest daily rainfall 174.

Records on 11 August 1970 by type
Record type	Records
Highest daily maximum	80
Lowest daily maximum	167
Highest daily minimum	78
Lowest daily minimum	27
Heaviest daily rainfall	174
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 11 August 1970 by timescale: all-time 3, monthly 13, daily 510.

How Much Records Were Beaten By

388 broken records

Margins by which the 388 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 101.6. Ties are not counted.

Top 20 by Significance

11 August 1970

Top 20 records on 11 August 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 August 1970	Tambe (Itambe), BR	monthly rain	145.0 mm (5.7 in)	58.0 mm (2.3 in)	56 years	72 of 100 (Major)
11 August 1970	Mamanguape, BR	daily rain	92.5 mm (3.6 in)	62.0 mm (2.4 in)	59 years	63 of 100 (Major)
11 August 1970	Sape, BR	monthly rain	146.0 mm (5.7 in)	74.8 mm (2.9 in)	28 years	62 of 100 (Major)
11 August 1970	Abbeville 4S, US	daily rain	124.5 mm (4.9 in)	101.6 mm (4.0 in)	52 years	61 of 100 (Major)
11 August 1970	Vitoria de Santo Antao, BR	monthly rain	82.5 mm (3.2 in)	18.5 mm (0.7 in)	47 years	60 of 100 (Major)
11 August 1970	Dickson, US	all-time rain	179.1 mm (7.1 in)	31.8 mm (1.3 in)	41 years	59 of 100 (Notable)
11 August 1970	Jalna, IN	daily rain	86.6 mm (3.4 in)	64.0 mm (2.5 in)	36 years	58 of 100 (Notable)
11 August 1970	Springfield, CA	daily rain	88.4 mm (3.5 in)	65.5 mm (2.6 in)	19 years	50 of 100 (Notable)
11 August 1970	Greensboro, US	daily rain	83.8 mm (3.3 in)	39.6 mm (1.6 in)	49 years	50 of 100 (Notable)
11 August 1970	Bananeiras, BR	daily rain	75.5 mm (3.0 in)	51.0 mm (2.0 in)	16 years	49 of 100 (Notable)
11 August 1970	Nappan Cda, CA	daily rain	63.2 mm (2.5 in)	31.4 mm (1.2 in)	49 years	49 of 100 (Notable)
11 August 1970	Apalachicola AP, US	daily rain	107.7 mm (4.2 in)	74.7 mm (2.9 in)	21 years	49 of 100 (Notable)
11 August 1970	Bom Jardim, BR	daily rain	59.8 mm (2.4 in)	37.7 mm (1.5 in)	40 years	47 of 100 (Notable)
11 August 1970	Gravata, BR	daily rain	42.2 mm (1.7 in)	39.6 mm (1.6 in)	16 years	47 of 100 (Notable)
11 August 1970	Joao Pessoa, BR	daily rain	67.8 mm (2.7 in)	24.8 mm (1.0 in)	56 years	47 of 100 (Notable)
11 August 1970	Comondu, MX	daily rain	47.5 mm (1.9 in)	46.2 mm (1.8 in)	29 years	47 of 100 (Notable)
11 August 1970	Bainbridge, US	daily rain	86.9 mm (3.4 in)	41.7 mm (1.6 in)	33 years	47 of 100 (Notable)
11 August 1970	Chara, RU	daily rain	32.8 mm (1.3 in)	23.8 mm (0.9 in)	25 years	46 of 100 (Notable)
11 August 1970	Rienzi, ZA	monthly rain	53.1 mm (2.1 in)	16.3 mm (0.6 in)	32 years	45 of 100 (Notable)
11 August 1970	Agate 3 E, US	daily rain	33.3 mm (1.3 in)	17.0 mm (0.7 in)	64 years	45 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 1970

Records set or tied on this calendar date in each year from 1793 to 1970. 1970 had 526 records.

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

Records on 08-11 in each year
Year	Records
1793	1
1796	1
1811	1
1815	2
1838	1
1839	1
1841	1
1851	1
1855	1
1858	1
1861	2
1862	1
1863	1
1864	6
1865	1
1866	6
1869	4
1871	1
1875	1
1879	2
1881	1
1883	1
1885	1
1888	1
1889	4
1890	4
1891	1
1892	4
1893	1
1894	1
1895	2
1896	5
1897	3
1898	2
1899	3
1900	4
1901	4
1902	13
1903	12
1904	19
1905	9
1906	6
1907	8
1908	10
1909	41
1910	9
1911	24
1912	46
1913	43
1914	26
1915	27
1916	64
1917	217
1918	29
1919	18
1920	54
1921	201
1922	98
1923	80
1924	149
1925	219
1926	140
1927	190
1928	174
1929	354
1930	471
1931	453
1932	281
1933	416
1934	620
1935	499
1936	541
1937	356
1938	315
1939	389
1940	359
1941	807
1942	390
1943	345
1944	936
1945	401
1946	419
1947	709
1948	306
1949	471
1950	320
1951	296
1952	417
1953	283
1954	536
1955	319
1956	457
1957	305
1958	494
1959	337
1960	461
1961	429
1962	662
1963	493
1964	677
1965	793
1966	1,037
1967	1,071
1968	619
1969	533
1970	526
1971	711
1972	823
1973	451
1974	596
1975	753
1976	529
1977	845
1978	433
1979	797
1980	929
1981	645
1982	1,232
1983	1,095
1984	822
1985	804
1986	563
1987	885
1988	1,119
1989	983
1990	760
1991	822
1992	928
1993	840
1994	1,173
1995	1,324
1996	1,147
1997	1,512
1998	1,232
1999	1,152
2000	924
2001	811
2002	1,152
2003	1,601
2004	1,478
2005	1,031
2006	896
2007	1,428
2008	945
2009	836
2010	2,289
2011	1,106
2012	953
2013	470
2014	556
2015	696
2016	1,340
2017	619
2018	861
2019	758
2020	688
2021	834
2022	661
2023	757
2024	643
2025	722
2026	765

Download the Data

Data for records on 1970-08-11: 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 20	342
20 to 40	31
40 to 60	9
60 to 80	5
80 to 100	0
100 to 120	1