Weather Records on 12 August 1979

1,192 weather records were set or tied worldwide on 12 August 1979. Highest significance: Rooipoort, ZA.

Key Facts for 12 August 1979

On 12 August 1979, 1,192 weather records were set or tied at long-record stations worldwide.
137 were record highs and 705 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 47 monthly and 1,144 daily.
Rooipoort set a monthly record daily precipitation of 60.0 mm (2.4 in) on 12 August 1979.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 443 records.

Record Map

1,192 stations

1,192 station records on 12 August 1979 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 August 1979: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rooipoort	South Africa	Record daily precipitation	60.0 mm (2.4 in)	67 of 100 (Major)
Witdraai (Pol)	South Africa	Record daily precipitation	90.0 mm (3.5 in)	61 of 100 (Major)
Rajkot	India	Record daily precipitation	199.9 mm (7.9 in)	51 of 100 (Notable)
Postmasburg	South Africa	Record daily precipitation	30.5 mm (1.2 in)	51 of 100 (Notable)
St Andrews	Canada	Record daily precipitation	53.0 mm (2.1 in)	48 of 100 (Notable)
Marydale (Pol)	South Africa	Record daily precipitation	26.5 mm (1.0 in)	48 of 100 (Notable)
Storfors_D	Sweden	Record daily precipitation	40.5 mm (1.6 in)	47 of 100 (Notable)
Newark Liberty Intl AP	United States	Record low maximum temperature	17.8 C (64.0 F)	47 of 100 (Notable)
Hayfield Pumping Plt	United States	Record daily precipitation	48.3 mm (1.9 in)	46 of 100 (Notable)
Palm Springs	United States	Record daily precipitation	42.9 mm (1.7 in)	46 of 100 (Notable)
Blythe ASOS	United States	Record low maximum temperature	28.3 C (82.9 F)	46 of 100 (Notable)
Tarwin Lower (Riverside)	Australia	Record daily precipitation	41.8 mm (1.6 in)	45 of 100 (Notable)
Nappan Cda	Canada	Record daily precipitation	43.8 mm (1.7 in)	45 of 100 (Notable)
Middletown 2 NW	United States	Record low maximum temperature	16.1 C (61.0 F)	45 of 100 (Notable)
Parrsboro	Canada	Record daily precipitation	52.6 mm (2.1 in)	44 of 100 (Notable)
Blythe	United States	Record low maximum temperature	28.3 C (82.9 F)	43 of 100 (Notable)
Chestertown	United States	Record low maximum temperature	17.2 C (63.0 F)	43 of 100 (Notable)
Port Jervis	United States	Record low maximum temperature	16.7 C (62.1 F)	42 of 100 (Notable)
Philadelphia City	United States	Record low maximum temperature	16.7 C (62.1 F)	42 of 100 (Notable)
Philadelphia City	United States	Record low minimum temperature	13.3 C (55.9 F)	42 of 100 (Notable)
McCarran Intl AP	United States	Record daily precipitation	39.6 mm (1.6 in)	42 of 100 (Notable)
Koegasbrug	South Africa	Record daily precipitation	26.0 mm (1.0 in)	41 of 100 (Notable)
Saint Leo	United States	Record daily precipitation	50.5 mm (2.0 in)	41 of 100 (Notable)
Rockport 1 ESE	United States	Record daily precipitation	40.6 mm (1.6 in)	41 of 100 (Notable)
Durham	United States	Record low maximum temperature	13.9 C (57.0 F)	41 of 100 (Notable)
Franklin 2 NE	United States	Record low maximum temperature	16.7 C (62.1 F)	41 of 100 (Notable)
Darlington	United States	Record daily precipitation	63.5 mm (2.5 in)	40 of 100 (Notable)
Sussex	Canada	Record daily precipitation	43.6 mm (1.7 in)	39 of 100 (Notable)
Kulu	Russia	Record daily precipitation	27.4 mm (1.1 in)	39 of 100 (Notable)
Barstow	United States	Record low maximum temperature	30.0 C (86.0 F)	39 of 100 (Notable)
Cedarville	United States	Record high minimum temperature	19.4 C (66.9 F)	39 of 100 (Notable)
Urbana Wrf	United States	Record low maximum temperature	18.9 C (66.0 F)	39 of 100 (Notable)
E Stroudsburg	United States	Record low maximum temperature	16.1 C (61.0 F)	39 of 100 (Notable)
Lexington	United States	Record daily precipitation	40.6 mm (1.6 in)	39 of 100 (Notable)
Washington 3 SSW	United States	Record daily precipitation	79.5 mm (3.1 in)	39 of 100 (Notable)
Baltimore Customs House	United States	Record low maximum temperature	18.3 C (64.9 F)	39 of 100 (Notable)
Sabino Canyon	United States	Record daily precipitation	48.3 mm (1.9 in)	38 of 100 (Notable)
Rome	United States	Record daily precipitation	78.2 mm (3.1 in)	38 of 100 (Notable)
Bay Springs	United States	Record daily precipitation	36.1 mm (1.4 in)	38 of 100 (Notable)
Gouldsboro	United States	Record daily precipitation	39.6 mm (1.6 in)	38 of 100 (Notable)
Ahuacatlan	Mexico	Record daily precipitation	62.0 mm (2.4 in)	37 of 100 (Notable)
Groblershoop;Boegoeb	South Africa	Record daily precipitation	26.0 mm (1.0 in)	37 of 100 (Notable)
Jerome	United States	Record daily precipitation	57.2 mm (2.3 in)	37 of 100 (Notable)
Wellton	United States	Record low maximum temperature	31.1 C (88.0 F)	37 of 100 (Notable)
New Braunfels	United States	Record low maximum temperature	28.9 C (84.0 F)	37 of 100 (Notable)
Hostotipaquillo	Mexico	Record low minimum temperature	11.7 C (53.1 F)	36 of 100 (Notable)
Uniontown	United States	Record daily precipitation	47.0 mm (1.9 in)	36 of 100 (Notable)
Adrian 2 NNE	United States	Record low minimum temperature	5.6 C (42.1 F)	36 of 100 (Notable)
Marble Hill	United States	Record low minimum temperature	7.8 C (46.0 F)	36 of 100 (Notable)
Danville	United States	Record daily precipitation	42.7 mm (1.7 in)	36 of 100 (Notable)
New Castle	United States	Record daily precipitation	37.3 mm (1.5 in)	36 of 100 (Notable)
Fredericton Cda	Canada	Record daily precipitation	34.6 mm (1.4 in)	35 of 100 (Notable)
Musquash	Canada	Record daily precipitation	56.4 mm (2.2 in)	35 of 100 (Notable)
Ugut	Russia	Record daily precipitation	61.6 mm (2.4 in)	35 of 100 (Notable)
Ohotsk	Russia	Record daily precipitation	48.7 mm (1.9 in)	35 of 100 (Notable)
E Wareham	United States	Record low maximum temperature	15.0 C (59.0 F)	35 of 100 (Notable)
Warsaw 1	United States	Record low minimum temperature	8.9 C (48.0 F)	35 of 100 (Notable)
Matamoras	United States	Record daily precipitation	43.2 mm (1.7 in)	35 of 100 (Notable)
Clifton Forge 2 NW	United States	Record daily precipitation	45.2 mm (1.8 in)	35 of 100 (Notable)
Conowingo Dam	United States	Record daily precipitation	100.6 mm (4.0 in)	34 of 100 (Routine)

Counts by Type and Timescale

1,192 records

Records set or tied on 12 August 1979 by type: Highest daily maximum 32, Lowest daily maximum 476, Highest daily minimum 105, Lowest daily minimum 229, Heaviest daily rainfall 350.

Records on 12 August 1979 by type
Record type	Records
Highest daily maximum	32
Lowest daily maximum	476
Highest daily minimum	105
Lowest daily minimum	229
Heaviest daily rainfall	350
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 12 August 1979 by timescale: all-time 1, monthly 47, daily 1,144.

How Much Records Were Beaten By

972 broken records

Margins by which the 972 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 130.3. Ties are not counted.

Top 20 by Significance

12 August 1979

Top 20 records on 12 August 1979 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 August 1979	Rooipoort, ZA	monthly rain	60.0 mm (2.4 in)	33.3 mm (1.3 in)	61 years	67 of 100 (Major)
12 August 1979	Witdraai (Pol), ZA	monthly rain	90.0 mm (3.5 in)	57.0 mm (2.2 in)	29 years	61 of 100 (Major)
12 August 1979	Rajkot, IN	daily rain	199.9 mm (7.9 in)	130.3 mm (5.1 in)	14 years	51 of 100 (Notable)
12 August 1979	Postmasburg, ZA	daily rain	30.5 mm (1.2 in)	21.4 mm (0.8 in)	61 years	51 of 100 (Notable)
12 August 1979	St Andrews, CA	daily rain	53.0 mm (2.1 in)	15.2 mm (0.6 in)	86 years	48 of 100 (Notable)
12 August 1979	Marydale (Pol), ZA	daily rain	26.5 mm (1.0 in)	18.1 mm (0.7 in)	61 years	48 of 100 (Notable)
12 August 1979	Storfors_D, SE	daily rain	40.5 mm (1.6 in)	29.3 mm (1.2 in)	26 years	47 of 100 (Notable)
12 August 1979	Newark Liberty Intl AP, US	daily low max	17.8 C (64.0 F)	2.8 C (5.0 F)	117 years	47 of 100 (Notable)
12 August 1979	Hayfield Pumping Plt, US	daily rain	48.3 mm (1.9 in)	47.0 mm (1.9 in)	6 years	46 of 100 (Notable)
12 August 1979	Palm Springs, US	daily rain	42.9 mm (1.7 in)	36.3 mm (1.4 in)	25 years	46 of 100 (Notable)
12 August 1979	Blythe ASOS, US	daily low max	28.3 C (82.9 F)	10.0 C (18.0 F)	24 years	46 of 100 (Notable)
12 August 1979	Tarwin Lower (Riverside), AU	monthly rain	41.8 mm (1.6 in)	3.2 mm (0.13 in)	70 years	45 of 100 (Notable)
12 August 1979	Nappan Cda, CA	daily rain	43.8 mm (1.7 in)	21.4 mm (0.8 in)	61 years	45 of 100 (Notable)
12 August 1979	Middletown 2 NW, US	daily low max	16.1 C (61.0 F)	4.5 C (8.1 F)	76 years	45 of 100 (Notable)
12 August 1979	Parrsboro, CA	daily rain	52.6 mm (2.1 in)	18.8 mm (0.7 in)	81 years	44 of 100 (Notable)
12 August 1979	Blythe, US	daily low max	28.3 C (82.9 F)	5.6 C (10.1 F)	56 years	43 of 100 (Notable)
12 August 1979	Chestertown, US	daily low max	17.2 C (63.0 F)	3.4 C (6.1 F)	84 years	43 of 100 (Notable)
12 August 1979	Port Jervis, US	daily low max	16.7 C (62.1 F)	3.3 C (5.9 F)	84 years	42 of 100 (Notable)
12 August 1979	Philadelphia City, US	daily low max	16.7 C (62.1 F)	2.7 C (4.9 F)	84 years	42 of 100 (Notable)
12 August 1979	Philadelphia City, US	daily low min	13.3 C (55.9 F)	1.7 C (3.1 F)	89 years	42 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 1979

Records set or tied on this calendar date in each year from 1793 to 1979. 1979 had 1,192 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 1979-08-12: 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 20	926
20 to 40	42
40 to 60	3
60 to 80	0
80 to 100	0
100 to 120	0
120 to 140	1