Weather Records on 15 September 1979

1,022 weather records were set or tied worldwide on 15 September 1979. Highest significance: Elephant Butte Dam, US.

Key Facts for 15 September 1979

On 15 September 1979, 1,022 weather records were set or tied at long-record stations worldwide.
326 were record highs and 390 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 27 monthly and 993 daily.
Elephant Butte Dam set an all-time record daily precipitation of 67.1 mm (2.6 in) on 15 September 1979.
Across 170 earlier years (1797 to 2026) the same calendar date averaged 409 records.

Record Map

1,022 stations

1,022 station records on 15 September 1979 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 September 1979: highest significance records shown on the map
Station	Country	Type	Value	Significance
Elephant Butte Dam	United States	Record daily precipitation	67.1 mm (2.6 in)	62 of 100 (Major)
Avon	United States	Record daily precipitation	61.2 mm (2.4 in)	60 of 100 (Major)
Norfolk	United States	Record daily precipitation	86.4 mm (3.4 in)	53 of 100 (Notable)
Umba	Russia	Record daily precipitation	28.3 mm (1.1 in)	51 of 100 (Notable)
Tapiratiba	Brazil	Record daily precipitation	52.7 mm (2.1 in)	50 of 100 (Notable)
Santa Sofia	Brazil	Record daily precipitation	60.4 mm (2.4 in)	50 of 100 (Notable)
Mt Morris 2W	United States	Record daily precipitation	62.5 mm (2.5 in)	50 of 100 (Notable)
Parishville 1 WNW	United States	Record daily precipitation	59.9 mm (2.4 in)	49 of 100 (Notable)
Pinsk	Belarus	Record daily precipitation	25.4 mm (1.0 in)	48 of 100 (Notable)
Monte Alto	Brazil	Record daily precipitation	71.3 mm (2.8 in)	46 of 100 (Notable)
Ak-Terk	Kyrgyzstan	Record daily precipitation	34.6 mm (1.4 in)	46 of 100 (Notable)
Hemlock	United States	Record daily precipitation	66.0 mm (2.6 in)	46 of 100 (Notable)
Santa Cruz Das Palmeiras	Brazil	Record daily precipitation	48.4 mm (1.9 in)	45 of 100 (Notable)
Little Valley	United States	Record daily precipitation	77.7 mm (3.1 in)	45 of 100 (Notable)
Dzhergital	Kyrgyzstan	Record daily precipitation	30.7 mm (1.2 in)	44 of 100 (Notable)
Culver City	United States	Record high maximum temperature	39.4 C (102.9 F)	44 of 100 (Notable)
Hillsboro	United States	Record low maximum temperature	11.7 C (53.1 F)	44 of 100 (Notable)
Canandaigua 3 S	United States	Record daily precipitation	49.5 mm (1.9 in)	44 of 100 (Notable)
Wolcott 3 NW	United States	Record daily precipitation	47.8 mm (1.9 in)	44 of 100 (Notable)
Meadville 1 S	United States	Record daily precipitation	56.6 mm (2.2 in)	44 of 100 (Notable)
Cravinhos	Brazil	Record daily precipitation	60.1 mm (2.4 in)	43 of 100 (Notable)
Usina Amalia	Brazil	Record daily precipitation	60.4 mm (2.4 in)	43 of 100 (Notable)
Mtn Park	United States	Record low maximum temperature	10.0 C (50.0 F)	42 of 100 (Notable)
Newark	United States	Record daily precipitation	49.3 mm (1.9 in)	42 of 100 (Notable)
Cuauhtemoc	Mexico	Record daily precipitation	39.9 mm (1.6 in)	41 of 100 (Notable)
Inverness 3 SE	United States	Record daily precipitation	53.1 mm (2.1 in)	41 of 100 (Notable)
Estancia 4N	United States	Record low maximum temperature	11.7 C (53.1 F)	41 of 100 (Notable)
Colton 2 N	United States	Record daily precipitation	71.4 mm (2.8 in)	41 of 100 (Notable)
Caconde	Brazil	Record daily precipitation	65.9 mm (2.6 in)	40 of 100 (Notable)
Urupes	Brazil	Record daily precipitation	47.4 mm (1.9 in)	40 of 100 (Notable)
Villa Ahumada	Mexico	Record low maximum temperature	15.6 C (60.1 F)	40 of 100 (Notable)
Fazenda Sao Lourenco	Brazil	Record daily precipitation	49.2 mm (1.9 in)	39 of 100 (Notable)
Putbus	Germany	Record low maximum temperature	9.9 C (49.8 F)	39 of 100 (Notable)
La Boquilla	Mexico	Record low maximum temperature	16.7 C (62.1 F)	39 of 100 (Notable)
Calgary Int'l A	Canada	Record high maximum temperature	30.6 C (87.1 F)	38 of 100 (Notable)
Prineville	United States	Record high maximum temperature	35.6 C (96.1 F)	38 of 100 (Notable)
Canton 4 SE	United States	Record daily precipitation	84.6 mm (3.3 in)	38 of 100 (Notable)
Desterro Do Melo	Brazil	Record daily precipitation	38.0 mm (1.5 in)	37 of 100 (Notable)
Madera	Mexico	Record low maximum temperature	11.7 C (53.1 F)	37 of 100 (Notable)
Franklinville	United States	Record daily precipitation	53.8 mm (2.1 in)	37 of 100 (Notable)
Novais	Brazil	Record daily precipitation	36.9 mm (1.5 in)	36 of 100 (Notable)
Medicine Hat A	Canada	Record high maximum temperature	31.9 C (89.4 F)	36 of 100 (Notable)
Pasadena	United States	Record high minimum temperature	21.1 C (70.0 F)	36 of 100 (Notable)
Moore Haven Lock 1	United States	Record daily precipitation	73.7 mm (2.9 in)	36 of 100 (Notable)
Indianola 1SW	United States	Record low minimum temperature	-1.1 C (30.0 F)	36 of 100 (Notable)
Florida	United States	Record daily precipitation	50.8 mm (2.0 in)	36 of 100 (Notable)
Watertown	United States	Record daily precipitation	51.6 mm (2.0 in)	36 of 100 (Notable)
San Nicolas Is	United States	Record high maximum temperature	36.1 C (97.0 F)	36 of 100 (Notable)
Port Lincoln	Australia	Record high maximum temperature	27.4 C (81.3 F)	35 of 100 (Notable)
Issik	Kazakhstan	Record daily precipitation	29.2 mm (1.1 in)	35 of 100 (Notable)
Arecibo 3 ESE	Puerto Rico [United States]	Record high minimum temperature	26.1 C (79.0 F)	35 of 100 (Notable)
N Creek 5 SE	United States	Record daily precipitation	29.2 mm (1.1 in)	35 of 100 (Notable)
Orlandia	Brazil	Record daily precipitation	61.5 mm (2.4 in)	34 of 100 (Routine)
Batatais	Brazil	Record daily precipitation	45.6 mm (1.8 in)	34 of 100 (Routine)
Pontal	Brazil	Record daily precipitation	59.9 mm (2.4 in)	34 of 100 (Routine)
Newport Beach Harbor	United States	Record high maximum temperature	32.2 C (90.0 F)	34 of 100 (Routine)
Ellenburg Depot	United States	Record daily precipitation	33.0 mm (1.3 in)	34 of 100 (Routine)
Vargem Grande Do Sul	Brazil	Record daily precipitation	49.8 mm (2.0 in)	33 of 100 (Routine)
Hankey (Pol)	South Africa	Record daily precipitation	59.0 mm (2.3 in)	33 of 100 (Routine)
University	United States	Record low minimum temperature	6.7 C (44.1 F)	33 of 100 (Routine)

Counts by Type and Timescale

1,022 records

Records set or tied on 15 September 1979 by type: Highest daily maximum 225, Lowest daily maximum 202, Highest daily minimum 101, Lowest daily minimum 188, Heaviest daily rainfall 306.

Records on 15 September 1979 by type
Record type	Records
Highest daily maximum	225
Lowest daily maximum	202
Highest daily minimum	101
Lowest daily minimum	188
Heaviest daily rainfall	306
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 15 September 1979 by timescale: all-time 2, monthly 27, daily 993.

How Much Records Were Beaten By

814 broken records

Margins by which the 814 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 61.0. Ties are not counted.

Top 20 by Significance

15 September 1979

Top 20 records on 15 September 1979 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 September 1979	Elephant Butte Dam, US	all-time rain	67.1 mm (2.6 in)	11.7 mm (0.5 in)	64 years	62 of 100 (Major)
15 September 1979	Avon, US	daily rain	61.2 mm (2.4 in)	36.8 mm (1.4 in)	44 years	60 of 100 (Major)
15 September 1979	Norfolk, US	daily rain	86.4 mm (3.4 in)	61.0 mm (2.4 in)	33 years	53 of 100 (Notable)
15 September 1979	Umba, RU	daily rain	28.3 mm (1.1 in)	16.8 mm (0.7 in)	41 years	51 of 100 (Notable)
15 September 1979	Tapiratiba, BR	daily rain	52.7 mm (2.1 in)	44.6 mm (1.8 in)	25 years	50 of 100 (Notable)
15 September 1979	Santa Sofia, BR	daily rain	60.4 mm (2.4 in)	51.4 mm (2.0 in)	20 years	50 of 100 (Notable)
15 September 1979	Mt Morris 2W, US	daily rain	62.5 mm (2.5 in)	31.8 mm (1.3 in)	26 years	50 of 100 (Notable)
15 September 1979	Parishville 1 WNW, US	daily rain	59.9 mm (2.4 in)	36.3 mm (1.4 in)	33 years	49 of 100 (Notable)
15 September 1979	Pinsk, BY	daily rain	25.4 mm (1.0 in)	8.1 mm (0.32 in)	83 years	48 of 100 (Notable)
15 September 1979	Monte Alto, BR	daily rain	71.3 mm (2.8 in)	51.3 mm (2.0 in)	37 years	46 of 100 (Notable)
15 September 1979	Ak-Terk, KG	daily rain	34.6 mm (1.4 in)	33.6 mm (1.3 in)	20 years	46 of 100 (Notable)
15 September 1979	Hemlock, US	daily rain	66.0 mm (2.6 in)	28.7 mm (1.1 in)	26 years	46 of 100 (Notable)
15 September 1979	Santa Cruz Das Palmeiras, BR	daily rain	48.4 mm (1.9 in)	37.9 mm (1.5 in)	37 years	45 of 100 (Notable)
15 September 1979	Little Valley, US	daily rain	77.7 mm (3.1 in)	54.3 mm (2.1 in)	8 years	45 of 100 (Notable)
15 September 1979	Dzhergital, KG	daily rain	30.7 mm (1.2 in)	30.4 mm (1.2 in)	0 years	44 of 100 (Notable)
15 September 1979	Culver City, US	daily high max	39.4 C (102.9 F)	10.0 C (18.0 F)	40 years	44 of 100 (Notable)
15 September 1979	Hillsboro, US	monthly low max	11.7 C (53.1 F)	0.5 C (0.9 F)	83 years	44 of 100 (Notable)
15 September 1979	Canandaigua 3 S, US	daily rain	49.5 mm (1.9 in)	30.2 mm (1.2 in)	33 years	44 of 100 (Notable)
15 September 1979	Wolcott 3 NW, US	daily rain	47.8 mm (1.9 in)	36.4 mm (1.4 in)	28 years	44 of 100 (Notable)
15 September 1979	Meadville 1 S, US	daily rain	56.6 mm (2.2 in)	32.5 mm (1.3 in)	8 years	44 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

1797 to 1979

Records set or tied on this calendar date in each year from 1797 to 1979. 1979 had 1,022 records.

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

Records on 09-15 in each year
Year	Records
1797	1
1803	1
1806	2
1810	1
1816	1
1818	1
1823	2
1833	1
1836	1
1837	2
1839	1
1841	1
1848	1
1850	1
1851	1
1854	2
1856	1
1857	1
1859	1
1864	1
1865	2
1866	1
1867	2
1868	1
1869	1
1872	1
1873	2
1876	2
1877	2
1880	1
1881	1
1882	6
1884	3
1885	4
1886	2
1887	3
1888	1
1889	5
1890	1
1894	4
1895	1
1897	1
1898	3
1899	3
1900	1
1901	12
1902	7
1903	31
1904	30
1905	16
1906	6
1907	7
1908	16
1909	16
1910	2
1911	40
1912	64
1913	43
1914	18
1915	94
1916	44
1917	50
1918	50
1919	52
1920	164
1921	122
1922	53
1923	193
1924	103
1925	112
1926	134
1927	539
1928	86
1929	99
1930	235
1931	422
1932	295
1933	322
1934	351
1935	463
1936	460
1937	337
1938	247
1939	1,098
1940	181
1941	276
1942	278
1943	360
1944	396
1945	418
1946	411
1947	621
1948	557
1949	523
1950	750
1951	283
1952	455
1953	400
1954	518
1955	532
1956	646
1957	449
1958	294
1959	844
1960	410
1961	586
1962	557
1963	455
1964	839
1965	614
1966	534
1967	578
1968	429
1969	362
1970	1,157
1971	598
1972	356
1973	774
1974	386
1975	739
1976	667
1977	400
1978	628
1979	1,022
1980	563
1981	613
1982	1,315
1983	756
1984	766
1985	764
1986	928
1987	719
1988	818
1989	955
1990	911
1991	1,165
1992	919
1993	2,227
1994	1,363
1995	723
1996	1,212
1997	1,177
1998	1,768
1999	858
2000	1,175
2001	837
2002	1,212
2003	855
2004	893
2005	1,123
2006	1,042
2007	946
2008	1,153
2009	773
2010	913
2011	1,170
2012	568
2013	854
2014	443
2015	997
2016	988
2017	825
2018	874
2019	538
2020	785
2021	467
2022	392
2023	507
2024	681
2025	503
2026	779

Download the Data

Data for records on 1979-09-15: 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	677
10 to 20	74
20 to 30	31
30 to 40	24
40 to 50	4
50 to 60	3
60 to 70	1