Weather Records on 12 August 1970

422 weather records were set or tied worldwide on 12 August 1970. Highest significance: North Bay, CA.

Key Facts for 12 August 1970

On 12 August 1970, 422 weather records were set or tied at long-record stations worldwide.
148 were record highs and 120 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 8 monthly and 412 daily.
North Bay set a daily record precipitation of 66.0 mm (2.6 in) on 12 August 1970.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 448 records.

Record Map

422 stations

422 station records on 12 August 1970 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 August 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
North Bay	Canada	Record daily precipitation	66.0 mm (2.6 in)	50 of 100 (Notable)
Corner Brook	Canada	Record daily precipitation	51.6 mm (2.0 in)	49 of 100 (Notable)
Abbeville	United States	Record daily precipitation	101.6 mm (4.0 in)	48 of 100 (Notable)
Port Aux Basques	Canada	Record daily precipitation	83.8 mm (3.3 in)	47 of 100 (Notable)
Shegaon	India	Record daily precipitation	79.2 mm (3.1 in)	46 of 100 (Notable)
Imeny_T.G.Shevchenko	Ukraine	Record daily precipitation	41.5 mm (1.6 in)	45 of 100 (Notable)
Auburn	United States	Record low maximum temperature	22.8 C (73.0 F)	44 of 100 (Notable)
Scottsboro	United States	Record low maximum temperature	22.2 C (72.0 F)	44 of 100 (Notable)
Kisinev	Moldova	Record daily precipitation	26.2 mm (1.0 in)	41 of 100 (Notable)
Palomar Mtn Obsy	United States	Record daily precipitation	59.7 mm (2.4 in)	40 of 100 (Notable)
Athens	United States	Record low maximum temperature	22.8 C (73.0 F)	40 of 100 (Notable)
Cap Madeleine	Canada	Record daily precipitation	79.2 mm (3.1 in)	39 of 100 (Notable)
Suolovuopmi	Norway	Record daily precipitation	46.8 mm (1.8 in)	39 of 100 (Notable)
Glen St Mary 1 W	United States	Record low maximum temperature	24.4 C (75.9 F)	39 of 100 (Notable)
Odesa	Ukraine	Record daily precipitation	89.9 mm (3.5 in)	38 of 100 (Notable)
Grindstone Island	Canada	Record daily precipitation	32.0 mm (1.3 in)	36 of 100 (Notable)
Tada	India	Record daily precipitation	63.0 mm (2.5 in)	36 of 100 (Notable)
Elberton 2 N	United States	Record low maximum temperature	23.3 C (73.9 F)	36 of 100 (Notable)
Bay Saint Louis	United States	Record daily precipitation	72.4 mm (2.9 in)	36 of 100 (Notable)
Bano	India	Record daily precipitation	75.0 mm (3.0 in)	35 of 100 (Notable)
Mangrulpir	India	Record daily precipitation	60.0 mm (2.4 in)	35 of 100 (Notable)
Tharsa	India	Record daily precipitation	91.0 mm (3.6 in)	35 of 100 (Notable)
W Pt	United States	Record low maximum temperature	23.9 C (75.0 F)	35 of 100 (Notable)
Lalganj	India	Record daily precipitation	85.0 mm (3.3 in)	34 of 100 (Routine)
Jamui	India	Record daily precipitation	70.0 mm (2.8 in)	33 of 100 (Routine)
Marhaura(Amnar)	India	Record daily precipitation	108.4 mm (4.3 in)	32 of 100 (Routine)
Calarasi	Romania	Record daily precipitation	54.0 mm (2.1 in)	32 of 100 (Routine)
Moncton A	Canada	Record daily precipitation	38.9 mm (1.5 in)	31 of 100 (Routine)
Juchitan de Zaragoza	Mexico	Record daily precipitation	91.9 mm (3.6 in)	31 of 100 (Routine)
Fayette	United States	Record low maximum temperature	27.8 C (82.0 F)	31 of 100 (Routine)
River Falls	United States	Record daily precipitation	43.7 mm (1.7 in)	31 of 100 (Routine)
Port Hastings	Canada	Record daily precipitation	38.1 mm (1.5 in)	30 of 100 (Routine)
Chintamani	India	Record daily precipitation	27.9 mm (1.1 in)	30 of 100 (Routine)
Akot	India	Record daily precipitation	38.1 mm (1.5 in)	30 of 100 (Routine)
Chalisgaon	India	Record daily precipitation	50.0 mm (2.0 in)	30 of 100 (Routine)
Kishangarh	India	Record daily precipitation	100.0 mm (3.9 in)	30 of 100 (Routine)
Landrum 1 NE	United States	Record low maximum temperature	22.2 C (72.0 F)	30 of 100 (Routine)
Jhajjar	India	Record daily precipitation	82.8 mm (3.3 in)	29 of 100 (Routine)
Dahlonega 4WSW	United States	Record low maximum temperature	21.7 C (71.1 F)	29 of 100 (Routine)
Winslow AP	United States	Record high minimum temperature	21.1 C (70.0 F)	29 of 100 (Routine)
North Bay A	Canada	Record daily precipitation	50.8 mm (2.0 in)	28 of 100 (Routine)
Aroostook	Canada	Record daily precipitation	40.6 mm (1.6 in)	28 of 100 (Routine)
Morsi	India	Record daily precipitation	175.0 mm (6.9 in)	28 of 100 (Routine)
Andalusia 3 W	United States	Record daily precipitation	42.2 mm (1.7 in)	28 of 100 (Routine)
Middleboro	United States	Record daily precipitation	52.8 mm (2.1 in)	28 of 100 (Routine)
Beaver Is	United States	Record high maximum temperature	28.3 C (82.9 F)	28 of 100 (Routine)
Highmarket 2W	United States	Record daily precipitation	54.9 mm (2.2 in)	28 of 100 (Routine)
Santuck	United States	Record low maximum temperature	22.8 C (73.0 F)	28 of 100 (Routine)
Southport Ridgeway Ave	Australia	Record daily precipitation	33.5 mm (1.3 in)	27 of 100 (Routine)
Cape Hopes Advance	Canada	Record high maximum temperature	21.7 C (71.1 F)	27 of 100 (Routine)
Ranike	India	Record daily precipitation	60.0 mm (2.4 in)	27 of 100 (Routine)
Plattsburgh AFB	United States	Record high minimum temperature	18.9 C (66.0 F)	27 of 100 (Routine)
Hendersonville 1 NE	United States	Record low maximum temperature	22.2 C (72.0 F)	27 of 100 (Routine)
Walhalla	United States	Record low maximum temperature	22.8 C (73.0 F)	27 of 100 (Routine)
Majhgaon	India	Record daily precipitation	79.0 mm (3.1 in)	26 of 100 (Routine)
Maastricht	Netherlands	Record low minimum temperature	7.7 C (45.9 F)	26 of 100 (Routine)
Pudoz	Russia	Record daily precipitation	26.2 mm (1.0 in)	26 of 100 (Routine)
Chita	Russia	Record low minimum temperature	3.2 C (37.8 F)	26 of 100 (Routine)
St Augustine	United States	Record low maximum temperature	27.2 C (81.0 F)	26 of 100 (Routine)
Cornelia	United States	Record low maximum temperature	21.1 C (70.0 F)	26 of 100 (Routine)

Counts by Type and Timescale

422 records

Records set or tied on 12 August 1970 by type: Highest daily maximum 83, Lowest daily maximum 90, Highest daily minimum 65, Lowest daily minimum 30, Heaviest daily rainfall 154.

Records on 12 August 1970 by type
Record type	Records
Highest daily maximum	83
Lowest daily maximum	90
Highest daily minimum	65
Lowest daily minimum	30
Heaviest daily rainfall	154
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 12 August 1970 by timescale: all-time 2, monthly 8, daily 412.

How Much Records Were Beaten By

299 broken records

Margins by which the 299 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 74.9. Ties are not counted.

Top 20 by Significance

12 August 1970

Top 20 records on 12 August 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 August 1970	North Bay, CA	daily rain	66.0 mm (2.6 in)	45.2 mm (1.8 in)	8 years	50 of 100 (Notable)
12 August 1970	Corner Brook, CA	daily rain	51.6 mm (2.0 in)	42.2 mm (1.7 in)	23 years	49 of 100 (Notable)
12 August 1970	Abbeville, US	daily rain	101.6 mm (4.0 in)	74.9 mm (2.9 in)	27 years	48 of 100 (Notable)
12 August 1970	Port Aux Basques, CA	monthly rain	83.8 mm (3.3 in)	16.0 mm (0.6 in)	52 years	47 of 100 (Notable)
12 August 1970	Shegaon, IN	daily rain	79.2 mm (3.1 in)	54.1 mm (2.1 in)	24 years	46 of 100 (Notable)
12 August 1970	Imeny_T.G.Shevchenko, UA	daily rain	41.5 mm (1.6 in)	30.5 mm (1.2 in)	16 years	45 of 100 (Notable)
12 August 1970	Auburn, US	daily low max	22.8 C (73.0 F)	5.0 C (9.0 F)	59 years	44 of 100 (Notable)
12 August 1970	Scottsboro, US	daily low max	22.2 C (72.0 F)	4.5 C (8.1 F)	72 years	44 of 100 (Notable)
12 August 1970	Kisinev, MD	daily rain	26.2 mm (1.0 in)	14.6 mm (0.6 in)	57 years	41 of 100 (Notable)
12 August 1970	Palomar Mtn Obsy, US	monthly rain	59.7 mm (2.4 in)	18.8 mm (0.7 in)	23 years	40 of 100 (Notable)
12 August 1970	Athens, US	daily low max	22.8 C (73.0 F)	2.2 C (4.0 F)	79 years	40 of 100 (Notable)
12 August 1970	Cap Madeleine, CA	monthly rain	79.2 mm (3.1 in)	8.1 mm (0.32 in)	44 years	39 of 100 (Notable)
12 August 1970	Suolovuopmi, NO	all-time rain	46.8 mm (1.8 in)	5.4 mm (0.21 in)	6 years	39 of 100 (Notable)
12 August 1970	Glen St Mary 1 W, US	daily low max	24.4 C (75.9 F)	4.5 C (8.1 F)	41 years	39 of 100 (Notable)
12 August 1970	Odesa, UA	all-time rain	89.9 mm (3.5 in)	4.8 mm (0.19 in)	20 years	38 of 100 (Notable)
12 August 1970	Grindstone Island, CA	daily rain	32.0 mm (1.3 in)	3.6 mm (0.14 in)	77 years	36 of 100 (Notable)
12 August 1970	Tada, IN	daily rain	63.0 mm (2.5 in)	20.6 mm (0.8 in)	44 years	36 of 100 (Notable)
12 August 1970	Elberton 2 N, US	daily low max	23.3 C (73.9 F)	2.3 C (4.1 F)	71 years	36 of 100 (Notable)
12 August 1970	Bay Saint Louis, US	daily rain	72.4 mm (2.9 in)	16.8 mm (0.7 in)	68 years	36 of 100 (Notable)
12 August 1970	Bano, IN	daily rain	75.0 mm (3.0 in)	24.2 mm (1.0 in)	60 years	35 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 422 records.

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

Records on 08-12 in each year
Year	Records
1793	1
1796	1
1811	2
1814	1
1815	1
1825	1
1843	1
1851	1
1854	1
1855	2
1856	1
1861	1
1864	3
1865	1
1867	1
1868	1
1871	2
1872	1
1873	1
1874	2
1875	3
1876	2
1879	1
1881	2
1883	1
1884	1
1885	1
1887	2
1888	2
1889	4
1890	4
1891	4
1892	2
1893	1
1894	1
1895	6
1896	2
1897	4
1898	1
1899	10
1900	1
1901	5
1902	9
1903	14
1904	13
1905	16
1906	8
1907	8
1908	31
1909	42
1910	16
1911	33
1912	40
1913	39
1914	26
1915	46
1916	31
1917	134
1918	37
1919	42
1920	26
1921	174
1922	71
1923	89
1924	267
1925	150
1926	154
1927	145
1928	173
1929	276
1930	501
1931	708
1932	418
1933	271
1934	471
1935	408
1936	591
1937	356
1938	237
1939	282
1940	545
1941	481
1942	257
1943	523
1944	595
1945	295
1946	655
1947	729
1948	384
1949	469
1950	442
1951	357
1952	533
1953	227
1954	969
1955	590
1956	265
1957	384
1958	406
1959	388
1960	707
1961	381
1962	466
1963	559
1964	1,346
1965	977
1966	777
1967	1,135
1968	444
1969	629
1970	422
1971	486
1972	473
1973	442
1974	560
1975	593
1976	495
1977	747
1978	571
1979	1,192
1980	692
1981	665
1982	789
1983	923
1984	665
1985	935
1986	615
1987	935
1988	1,518
1989	827
1990	727
1991	726
1992	1,134
1993	936
1994	861
1995	1,654
1996	1,336
1997	1,363
1998	1,215
1999	1,325
2000	741
2001	855
2002	1,345
2003	1,752
2004	1,872
2005	1,085
2006	874
2007	1,209
2008	970
2009	814
2010	1,907
2011	903
2012	910
2013	427
2014	787
2015	757
2016	1,290
2017	533
2018	571
2019	695
2020	730
2021	980
2022	616
2023	779
2024	659
2025	639
2026	849

Download the Data

Data for records on 1970-08-12: 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	246
10 to 20	24
20 to 30	16
30 to 40	7
40 to 50	3
50 to 60	1
60 to 70	1
70 to 80	1