Weather Records on 15 August 1970

382 weather records were set or tied worldwide on 15 August 1970. Highest significance: Odzun, AM.

Key Facts for 15 August 1970

On 15 August 1970, 382 weather records were set or tied at long-record stations worldwide.
132 were record highs and 80 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 8 monthly and 371 daily.
Odzun set a monthly record daily precipitation of 54.8 mm (2.2 in) on 15 August 1970.
Across 168 earlier years (1793 to 2026) the same calendar date averaged 455 records.

Record Map

382 stations

382 station records on 15 August 1970 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 August 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
Odzun	Armenia	Record daily precipitation	54.8 mm (2.2 in)	60 of 100 (Major)
Gumri	Armenia	Record daily precipitation	41.0 mm (1.6 in)	56 of 100 (Notable)
Brule Rs	United States	Record daily precipitation	87.6 mm (3.4 in)	52 of 100 (Notable)
Slavgorod	Russia	Record daily precipitation	47.2 mm (1.9 in)	51 of 100 (Notable)
Mercedes 6 SSE	United States	Record daily precipitation	59.2 mm (2.3 in)	50 of 100 (Notable)
Barisaho	Georgia	Record daily precipitation	61.2 mm (2.4 in)	49 of 100 (Notable)
St George	United States	Record daily precipitation	31.8 mm (1.3 in)	49 of 100 (Notable)
Tastyp	Russia	Record daily precipitation	34.5 mm (1.4 in)	48 of 100 (Notable)
Tbilisi	Georgia	Record daily precipitation	40.4 mm (1.6 in)	47 of 100 (Notable)
Ashland Exp Farm	United States	Record daily precipitation	81.3 mm (3.2 in)	47 of 100 (Notable)
Estancia	Brazil	Record daily precipitation	56.2 mm (2.2 in)	46 of 100 (Notable)
Sagaredzo	Georgia	Record daily precipitation	75.6 mm (3.0 in)	46 of 100 (Notable)
Solon Springs	United States	Record daily precipitation	59.7 mm (2.4 in)	46 of 100 (Notable)
Joao Pessoa	Brazil	Record daily precipitation	61.0 mm (2.4 in)	45 of 100 (Notable)
Tajga	Russia	Record daily precipitation	43.8 mm (1.7 in)	45 of 100 (Notable)
Moskovo	Russia	Record daily precipitation	61.2 mm (2.4 in)	45 of 100 (Notable)
Gudauri	Georgia	Record daily precipitation	61.2 mm (2.4 in)	44 of 100 (Notable)
Novosibirsk	Russia	Record daily precipitation	39.1 mm (1.5 in)	42 of 100 (Notable)
Pitkin	United States	Record daily precipitation	25.4 mm (1.0 in)	41 of 100 (Notable)
Winchester 7 SE	United States	Record daily precipitation	41.4 mm (1.6 in)	40 of 100 (Notable)
Tsalka	Georgia	Record daily precipitation	32.5 mm (1.3 in)	39 of 100 (Notable)
Malin Head	Ireland	Record daily precipitation	30.8 mm (1.2 in)	38 of 100 (Notable)
Onor	Russia	Record daily precipitation	35.5 mm (1.4 in)	37 of 100 (Notable)
Hayward Rs	United States	Record daily precipitation	32.3 mm (1.3 in)	37 of 100 (Notable)
Kurinjipadi	India	Record daily precipitation	66.0 mm (2.6 in)	36 of 100 (Notable)
Bolotnoe	Russia	Record daily precipitation	38.7 mm (1.5 in)	36 of 100 (Notable)
Sombrerete (Dge)	Mexico	Record daily precipitation	54.9 mm (2.2 in)	35 of 100 (Notable)
Tuzigoot Nm	United States	Record daily precipitation	45.0 mm (1.8 in)	34 of 100 (Routine)
Lake City	United States	Record daily precipitation	30.7 mm (1.2 in)	34 of 100 (Routine)
Dyer 5S	United States	Record high minimum temperature	19.4 C (66.9 F)	34 of 100 (Routine)
Bell Ranch	United States	Record low minimum temperature	8.9 C (48.0 F)	34 of 100 (Routine)
Kazan	Russia	Record high minimum temperature	19.2 C (66.6 F)	32 of 100 (Routine)
Kolyvan	Russia	Record daily precipitation	31.6 mm (1.2 in)	32 of 100 (Routine)
Dilijan	Armenia	Record daily precipitation	27.4 mm (1.1 in)	31 of 100 (Routine)
La Pocatiere Cda	Canada	Record high maximum temperature	31.7 C (89.1 F)	31 of 100 (Routine)
Chuda	India	Record daily precipitation	69.0 mm (2.7 in)	31 of 100 (Routine)
Armagh	United Kingdom	Record daily precipitation	78.3 mm (3.1 in)	31 of 100 (Routine)
Roosevelt 1 S	United States	Record low minimum temperature	16.7 C (62.1 F)	31 of 100 (Routine)
Timberville 3 E	United States	Record daily precipitation	51.8 mm (2.0 in)	31 of 100 (Routine)
Mandvi	India	Record daily precipitation	43.2 mm (1.7 in)	30 of 100 (Routine)
Ramgarh	India	Record daily precipitation	60.0 mm (2.4 in)	30 of 100 (Routine)
Hollister 1 SW	United States	Record low minimum temperature	5.6 C (42.1 F)	30 of 100 (Routine)
Gaylord	United States	Record high minimum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Cumberland	United States	Record daily precipitation	49.5 mm (1.9 in)	30 of 100 (Routine)
Salmon Gums Res.STN.	Australia	Record low minimum temperature	-6.1 C (21.0 F)	29 of 100 (Routine)
Bolnisi	Georgia	Record daily precipitation	44.0 mm (1.7 in)	29 of 100 (Routine)
Karwar	India	Record daily precipitation	129.6 mm (5.1 in)	29 of 100 (Routine)
Santa Cruz Juventino Rosas (S	Mexico	Record high minimum temperature	17.2 C (63.0 F)	29 of 100 (Routine)
Minas Nuevas	Mexico	Record low maximum temperature	26.7 C (80.1 F)	27 of 100 (Routine)
Bartow 1SE	United States	Record high minimum temperature	25.6 C (78.1 F)	27 of 100 (Routine)
San Juan del Rio	Mexico	Record daily precipitation	30.2 mm (1.2 in)	26 of 100 (Routine)
Botlih	Russia	Record daily precipitation	34.7 mm (1.4 in)	26 of 100 (Routine)
Buxton	United Kingdom	Record low maximum temperature	11.1 C (52.0 F)	26 of 100 (Routine)
Aracaju	Brazil	Record daily precipitation	27.1 mm (1.1 in)	25 of 100 (Routine)
Pjarnu	Estonia	Record daily precipitation	29.8 mm (1.2 in)	25 of 100 (Routine)
Achinsk	Russia	Record daily precipitation	28.4 mm (1.1 in)	25 of 100 (Routine)
Clinton	United States	Record high maximum temperature	32.2 C (90.0 F)	25 of 100 (Routine)
Espanola	United States	Record high minimum temperature	18.3 C (64.9 F)	25 of 100 (Routine)
Shnoh	Armenia	Record daily precipitation	50.3 mm (2.0 in)	24 of 100 (Routine)
Porto Novo	India	Record daily precipitation	71.0 mm (2.8 in)	24 of 100 (Routine)

Counts by Type and Timescale

382 records

Records set or tied on 15 August 1970 by type: Highest daily maximum 69, Lowest daily maximum 51, Highest daily minimum 63, Lowest daily minimum 29, Heaviest daily rainfall 170.

Records on 15 August 1970 by type
Record type	Records
Highest daily maximum	69
Lowest daily maximum	51
Highest daily minimum	63
Lowest daily minimum	29
Heaviest daily rainfall	170
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 15 August 1970 by timescale: all-time 3, monthly 8, daily 371.

How Much Records Were Beaten By

293 broken records

Margins by which the 293 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 68.1. Ties are not counted.

Top 20 by Significance

15 August 1970

Top 20 records on 15 August 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 August 1970	Odzun, AM	monthly rain	54.8 mm (2.2 in)	29.8 mm (1.2 in)	25 years	60 of 100 (Major)
15 August 1970	Gumri, AM	daily rain	41.0 mm (1.6 in)	26.5 mm (1.0 in)	32 years	56 of 100 (Notable)
15 August 1970	Brule Rs, US	daily rain	87.6 mm (3.4 in)	55.3 mm (2.2 in)	29 years	52 of 100 (Notable)
15 August 1970	Slavgorod, RU	monthly rain	47.2 mm (1.9 in)	13.7 mm (0.5 in)	28 years	51 of 100 (Notable)
15 August 1970	Mercedes 6 SSE, US	daily rain	59.2 mm (2.3 in)	47.8 mm (1.9 in)	56 years	50 of 100 (Notable)
15 August 1970	Barisaho, GE	daily rain	61.2 mm (2.4 in)	46.2 mm (1.8 in)	23 years	49 of 100 (Notable)
15 August 1970	St George, US	daily rain	31.8 mm (1.3 in)	22.1 mm (0.9 in)	35 years	49 of 100 (Notable)
15 August 1970	Tastyp, RU	daily rain	34.5 mm (1.4 in)	22.6 mm (0.9 in)	29 years	48 of 100 (Notable)
15 August 1970	Tbilisi, GE	daily rain	40.4 mm (1.6 in)	16.8 mm (0.7 in)	68 years	47 of 100 (Notable)
15 August 1970	Ashland Exp Farm, US	daily rain	81.3 mm (3.2 in)	68.1 mm (2.7 in)	3 years	47 of 100 (Notable)
15 August 1970	Estancia, BR	daily rain	56.2 mm (2.2 in)	38.9 mm (1.5 in)	5 years	46 of 100 (Notable)
15 August 1970	Sagaredzo, GE	daily rain	75.6 mm (3.0 in)	60.0 mm (2.4 in)	12 years	46 of 100 (Notable)
15 August 1970	Solon Springs, US	daily rain	59.7 mm (2.4 in)	45.7 mm (1.8 in)	12 years	46 of 100 (Notable)
15 August 1970	Joao Pessoa, BR	daily rain	61.0 mm (2.4 in)	29.6 mm (1.2 in)	32 years	45 of 100 (Notable)
15 August 1970	Tajga, RU	daily rain	43.8 mm (1.7 in)	30.6 mm (1.2 in)	8 years	45 of 100 (Notable)
15 August 1970	Moskovo, RU	daily rain	61.2 mm (2.4 in)	53.6 mm (2.1 in)	8 years	45 of 100 (Notable)
15 August 1970	Gudauri, GE	daily rain	61.2 mm (2.4 in)	17.9 mm (0.7 in)	68 years	44 of 100 (Notable)
15 August 1970	Novosibirsk, RU	daily rain	39.1 mm (1.5 in)	13.5 mm (0.5 in)	40 years	42 of 100 (Notable)
15 August 1970	Pitkin, US	daily rain	25.4 mm (1.0 in)	15.2 mm (0.6 in)	16 years	41 of 100 (Notable)
15 August 1970	Winchester 7 SE, US	daily rain	41.4 mm (1.6 in)	29.2 mm (1.1 in)	44 years	40 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 382 records.

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

Records on 08-15 in each year
Year	Records
1793	2
1802	1
1805	1
1812	1
1821	1
1838	2
1839	1
1841	1
1844	1
1845	3
1852	1
1854	1
1856	1
1858	1
1861	3
1867	1
1868	2
1869	1
1873	2
1875	1
1876	2
1877	1
1878	1
1879	1
1880	3
1881	2
1882	2
1883	1
1884	2
1885	3
1886	1
1887	1
1888	3
1890	2
1891	2
1892	3
1893	3
1895	1
1896	9
1897	3
1898	1
1899	2
1900	6
1901	5
1902	10
1903	5
1904	17
1905	26
1906	8
1907	14
1908	15
1909	30
1910	16
1911	26
1912	34
1913	42
1914	11
1915	26
1916	223
1917	32
1918	23
1919	22
1920	59
1921	55
1922	86
1923	116
1924	220
1925	91
1926	115
1927	223
1928	271
1929	586
1930	274
1931	351
1932	368
1933	268
1934	992
1935	414
1936	867
1937	574
1938	681
1939	450
1940	372
1941	289
1942	377
1943	426
1944	610
1945	433
1946	285
1947	559
1948	366
1949	559
1950	317
1951	597
1952	596
1953	449
1954	481
1955	539
1956	390
1957	355
1958	1,092
1959	515
1960	417
1961	704
1962	1,052
1963	972
1964	1,185
1965	535
1966	340
1967	687
1968	1,002
1969	583
1970	382
1971	899
1972	613
1973	499
1974	512
1975	490
1976	1,345
1977	550
1978	841
1979	1,788
1980	745
1981	588
1982	479
1983	955
1984	622
1985	915
1986	1,283
1987	1,098
1988	1,479
1989	495
1990	758
1991	778
1992	1,638
1993	831
1994	1,073
1995	1,298
1996	929
1997	927
1998	861
1999	956
2000	932
2001	1,254
2002	1,307
2003	1,248
2004	1,424
2005	1,067
2006	923
2007	1,317
2008	964
2009	1,038
2010	1,622
2011	770
2012	654
2013	711
2014	583
2015	759
2016	707
2017	532
2018	328
2019	435
2020	1,327
2021	900
2022	692
2023	1,414
2024	729
2025	772
2026	975

Download the Data

Data for records on 1970-08-15: 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	227
10 to 20	35
20 to 30	17
30 to 40	6
40 to 50	3
50 to 60	3
60 to 70	2