Weather Records on 11 September 1979

596 weather records were set or tied worldwide on 11 September 1979. Highest significance: Watersmeet, US.

Key Facts for 11 September 1979

On 11 September 1979, 596 weather records were set or tied at long-record stations worldwide.
200 were record highs and 104 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 16 monthly and 580 daily.
Watersmeet set a daily record precipitation of 49.5 mm (1.9 in) on 11 September 1979.
Across 164 earlier years (1809 to 2026) the same calendar date averaged 422 records.

Record Map

596 stations

596 station records on 11 September 1979 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 September 1979: highest significance records shown on the map
Station	Country	Type	Value	Significance
Watersmeet	United States	Record daily precipitation	49.5 mm (1.9 in)	64 of 100 (Major)
Goodooga (Willawillingbah)	Australia	Record daily precipitation	49.8 mm (2.0 in)	60 of 100 (Major)
Glen Alice (Watervale)	Australia	Record daily precipitation	40.0 mm (1.6 in)	54 of 100 (Notable)
Trangie Research Station AWS	Australia	Record daily precipitation	34.0 mm (1.3 in)	53 of 100 (Notable)
Warranooke (Glenorchy)	Australia	Record daily precipitation	43.4 mm (1.7 in)	53 of 100 (Notable)
Beechwood 7 WNW	United States	Record daily precipitation	48.5 mm (1.9 in)	51 of 100 (Notable)
Trangie Post Office	Australia	Record daily precipitation	33.4 mm (1.3 in)	50 of 100 (Notable)
Running Stream (Brooklyn)	Australia	Record daily precipitation	44.0 mm (1.7 in)	50 of 100 (Notable)
Geurie Post Office	Australia	Record daily precipitation	43.0 mm (1.7 in)	49 of 100 (Notable)
Uxbridge	Australia	Record daily precipitation	35.0 mm (1.4 in)	49 of 100 (Notable)
Ilford (Tara)	Australia	Record daily precipitation	42.4 mm (1.7 in)	48 of 100 (Notable)
Mudgee (George Street)	Australia	Record daily precipitation	45.4 mm (1.8 in)	47 of 100 (Notable)
Lake Eildon	Australia	Record daily precipitation	42.0 mm (1.7 in)	47 of 100 (Notable)
Euroa	Australia	Record daily precipitation	40.0 mm (1.6 in)	46 of 100 (Notable)
Premaydena Hatchery	Australia	Record daily precipitation	28.6 mm (1.1 in)	46 of 100 (Notable)
Nome AP	United States	Record high maximum temperature	21.7 C (71.1 F)	46 of 100 (Notable)
Wellington (Agrowplow)	Australia	Record daily precipitation	41.0 mm (1.6 in)	44 of 100 (Notable)
Presa Malpais	Mexico	Record daily precipitation	37.8 mm (1.5 in)	44 of 100 (Notable)
Dungowan Station	Australia	Record daily precipitation	46.8 mm (1.8 in)	43 of 100 (Notable)
Portland (Jamieson St)	Australia	Record daily precipitation	32.6 mm (1.3 in)	43 of 100 (Notable)
Sofala Old Post Office	Australia	Record daily precipitation	34.4 mm (1.4 in)	43 of 100 (Notable)
Ashland Exp Farm	United States	Record daily precipitation	47.8 mm (1.9 in)	43 of 100 (Notable)
Brule Rs	United States	Record daily precipitation	45.2 mm (1.8 in)	43 of 100 (Notable)
Sheringa (Lake Hamilton)	Australia	Record daily precipitation	26.0 mm (1.0 in)	42 of 100 (Notable)
Wattle Flat General Store	Australia	Record daily precipitation	38.0 mm (1.5 in)	42 of 100 (Notable)
Half Moon Bay	United States	Record high maximum temperature	32.2 C (90.0 F)	42 of 100 (Notable)
Yeelana (Brimpton Lake)	Australia	Record daily precipitation	27.0 mm (1.1 in)	41 of 100 (Notable)
Bourke Post Office	Australia	Record daily precipitation	27.4 mm (1.1 in)	41 of 100 (Notable)
Gulgong Post Office	Australia	Record daily precipitation	32.6 mm (1.3 in)	41 of 100 (Notable)
Rylstone (Ilford Rd)	Australia	Record daily precipitation	32.0 mm (1.3 in)	41 of 100 (Notable)
Arecibo 3 ESE	Puerto Rico [United States]	Record low maximum temperature	27.8 C (82.0 F)	41 of 100 (Notable)
Longerenong	Australia	Record daily precipitation	29.4 mm (1.2 in)	40 of 100 (Notable)
Goodooga (Brenda)	Australia	Record daily precipitation	29.0 mm (1.1 in)	39 of 100 (Notable)
Warren (Frawley St)	Australia	Record daily precipitation	31.0 mm (1.2 in)	39 of 100 (Notable)
Fort William	Australia	Record daily precipitation	33.0 mm (1.3 in)	39 of 100 (Notable)
Chapulco	Mexico	Record daily precipitation	49.8 mm (2.0 in)	39 of 100 (Notable)
Bylong (Montoro)	Australia	Record daily precipitation	31.2 mm (1.2 in)	38 of 100 (Notable)
Miepoll South	Australia	Record daily precipitation	34.0 mm (1.3 in)	38 of 100 (Notable)
Molka (Lowana)	Australia	Record daily precipitation	29.4 mm (1.2 in)	38 of 100 (Notable)
Ilhota-Jusante	Brazil	Record daily precipitation	62.4 mm (2.5 in)	38 of 100 (Notable)
Goolma (Brooklyn)	Australia	Record daily precipitation	58.0 mm (2.3 in)	37 of 100 (Notable)
Brim	Australia	Record daily precipitation	33.0 mm (1.3 in)	37 of 100 (Notable)
Napa State Hospital	United States	Record high maximum temperature	41.7 C (107.1 F)	37 of 100 (Notable)
San Francisco Dwtn	United States	Record high minimum temperature	19.4 C (66.9 F)	37 of 100 (Notable)
Jamieson	Australia	Record daily precipitation	40.0 mm (1.6 in)	36 of 100 (Notable)
Nova Trento	Brazil	Record daily precipitation	115.3 mm (4.5 in)	36 of 100 (Notable)
Gyzylarbat	Turkmenistan	Record high minimum temperature	26.0 C (78.8 F)	36 of 100 (Notable)
Narromine (Alagalah St)	Australia	Record daily precipitation	28.2 mm (1.1 in)	35 of 100 (Notable)
Watsonville Wtr Wks	United States	Record high maximum temperature	36.1 C (97.0 F)	35 of 100 (Notable)
Ironwood	United States	Record daily precipitation	33.0 mm (1.3 in)	35 of 100 (Notable)
Forbes (Camp Street)	Australia	Record high minimum temperature	14.8 C (58.6 F)	34 of 100 (Routine)
Berkeley	United States	Record high maximum temperature	37.2 C (99.0 F)	34 of 100 (Routine)
Healdsburg	United States	Record high maximum temperature	42.2 C (108.0 F)	34 of 100 (Routine)
Alexandra (Acheron)	Australia	Record daily precipitation	35.4 mm (1.4 in)	33 of 100 (Routine)
Rubicon Sec	Australia	Record daily precipitation	54.4 mm (2.1 in)	33 of 100 (Routine)
Riversul	Brazil	Record daily precipitation	40.9 mm (1.6 in)	33 of 100 (Routine)
Port Aux Basques	Canada	Record daily precipitation	33.6 mm (1.3 in)	33 of 100 (Routine)
Ostas I Hegra	Norway	Record daily precipitation	25.5 mm (1.0 in)	33 of 100 (Routine)
Manassas 3 NW	United States	Record low maximum temperature	21.1 C (70.0 F)	33 of 100 (Routine)
San Francisco Dwtn	United States	Record high maximum temperature	36.7 C (98.1 F)	33 of 100 (Routine)

Counts by Type and Timescale

596 records

Records set or tied on 11 September 1979 by type: Highest daily maximum 105, Lowest daily maximum 47, Highest daily minimum 95, Lowest daily minimum 57, Heaviest daily rainfall 291, Heaviest daily snowfall 1.

Records on 11 September 1979 by type
Record type	Records
Highest daily maximum	105
Lowest daily maximum	47
Highest daily minimum	95
Lowest daily minimum	57
Heaviest daily rainfall	291
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 11 September 1979 by timescale: all-time 0, monthly 16, daily 580.

How Much Records Were Beaten By

480 broken records

Margins by which the 480 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 94.0. Ties are not counted.

Top 20 by Significance

11 September 1979

Top 20 records on 11 September 1979 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 September 1979	Watersmeet, US	daily rain	49.5 mm (1.9 in)	33.0 mm (1.3 in)	68 years	64 of 100 (Major)
11 September 1979	Goodooga (Willawillingbah), AU	daily rain	49.8 mm (2.0 in)	33.0 mm (1.3 in)	86 years	60 of 100 (Major)
11 September 1979	Glen Alice (Watervale), AU	daily rain	40.0 mm (1.6 in)	33.1 mm (1.3 in)	48 years	54 of 100 (Notable)
11 September 1979	Trangie Research Station AWS, AU	daily rain	34.0 mm (1.3 in)	22.8 mm (0.9 in)	54 years	53 of 100 (Notable)
11 September 1979	Warranooke (Glenorchy), AU	daily rain	43.4 mm (1.7 in)	25.6 mm (1.0 in)	14 years	53 of 100 (Notable)
11 September 1979	Beechwood 7 WNW, US	daily rain	48.5 mm (1.9 in)	37.3 mm (1.5 in)	29 years	51 of 100 (Notable)
11 September 1979	Trangie Post Office, AU	daily rain	33.4 mm (1.3 in)	20.2 mm (0.8 in)	54 years	50 of 100 (Notable)
11 September 1979	Running Stream (Brooklyn), AU	daily rain	44.0 mm (1.7 in)	22.2 mm (0.9 in)	52 years	50 of 100 (Notable)
11 September 1979	Geurie Post Office, AU	daily rain	43.0 mm (1.7 in)	22.2 mm (0.9 in)	54 years	49 of 100 (Notable)
11 September 1979	Uxbridge, AU	daily rain	35.0 mm (1.4 in)	20.3 mm (0.8 in)	32 years	49 of 100 (Notable)
11 September 1979	Ilford (Tara), AU	daily rain	42.4 mm (1.7 in)	22.1 mm (0.9 in)	48 years	48 of 100 (Notable)
11 September 1979	Mudgee (George Street), AU	daily rain	45.4 mm (1.8 in)	7.3 mm (0.29 in)	98 years	47 of 100 (Notable)
11 September 1979	Lake Eildon, AU	daily rain	42.0 mm (1.7 in)	25.7 mm (1.0 in)	14 years	47 of 100 (Notable)
11 September 1979	Euroa, AU	daily rain	40.0 mm (1.6 in)	13.8 mm (0.5 in)	68 years	46 of 100 (Notable)
11 September 1979	Premaydena Hatchery, AU	daily rain	28.6 mm (1.1 in)	17.7 mm (0.7 in)	41 years	46 of 100 (Notable)
11 September 1979	Nome AP, US	monthly high max	21.7 C (71.1 F)	2.8 C (5.0 F)	68 years	46 of 100 (Notable)
11 September 1979	Wellington (Agrowplow), AU	daily rain	41.0 mm (1.6 in)	16.1 mm (0.6 in)	54 years	44 of 100 (Notable)
11 September 1979	Presa Malpais, MX	daily rain	37.8 mm (1.5 in)	23.3 mm (0.9 in)	34 years	44 of 100 (Notable)
11 September 1979	Dungowan Station, AU	daily rain	46.8 mm (1.8 in)	28.8 mm (1.1 in)	8 years	43 of 100 (Notable)
11 September 1979	Portland (Jamieson St), AU	daily rain	32.6 mm (1.3 in)	24.2 mm (1.0 in)	28 years	43 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

1809 to 1979

Records set or tied on this calendar date in each year from 1809 to 1979. 1979 had 596 records.

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

Records on 09-11 in each year
Year	Records
1809	1
1814	3
1818	1
1830	1
1836	1
1838	3
1839	1
1848	1
1850	1
1851	1
1854	2
1858	1
1860	2
1861	1
1863	2
1865	3
1866	1
1874	2
1876	1
1877	1
1879	1
1880	1
1882	4
1883	2
1884	1
1886	1
1888	2
1889	4
1890	2
1891	2
1892	1
1893	4
1894	2
1895	4
1896	1
1897	3
1898	3
1899	5
1900	1
1901	3
1902	15
1903	13
1904	4
1905	5
1906	10
1907	9
1908	20
1909	12
1910	19
1911	9
1912	25
1913	22
1914	52
1915	160
1916	17
1917	88
1918	62
1919	52
1920	158
1921	52
1922	78
1923	44
1924	290
1925	260
1926	137
1927	300
1928	127
1929	206
1930	136
1931	868
1932	210
1933	276
1934	144
1935	410
1936	567
1937	324
1938	288
1939	561
1940	891
1941	210
1942	234
1943	335
1944	446
1945	341
1946	262
1947	611
1948	424
1949	450
1950	462
1951	247
1952	549
1953	392
1954	363
1955	479
1956	539
1957	470
1958	748
1959	488
1960	423
1961	524
1962	480
1963	359
1964	1,195
1965	414
1966	392
1967	478
1968	835
1969	685
1970	474
1971	464
1972	507
1973	612
1974	430
1975	644
1976	920
1977	406
1978	911
1979	596
1980	474
1981	347
1982	862
1983	1,243
1984	888
1985	844
1986	1,221
1987	595
1988	1,019
1989	1,301
1990	840
1991	843
1992	672
1993	809
1994	713
1995	619
1996	1,030
1997	808
1998	1,821
1999	1,073
2000	1,469
2001	826
2002	1,059
2003	1,022
2004	740
2005	1,163
2006	1,132
2007	947
2008	916
2009	774
2010	965
2011	1,051
2012	687
2013	1,207
2014	1,100
2015	683
2016	677
2017	916
2018	763
2019	806
2020	1,235
2021	851
2022	617
2023	1,034
2024	889
2025	917
2026	615

Download the Data

Data for records on 1979-09-11: 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	451
20 to 40	28
40 to 60	0
60 to 80	0
80 to 100	1