Weather Records on 11 September 2009

774 weather records were set or tied worldwide on 11 September 2009. Highest significance: Tarpley 3S, US.

Key Facts for 11 September 2009

On 11 September 2009, 774 weather records were set or tied at long-record stations worldwide.
381 were record highs and 198 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 18 monthly and 754 daily.
Tarpley 3S set a daily record precipitation of 78.0 mm (3.1 in) on 11 September 2009.
Across 164 earlier years (1809 to 2026) the same calendar date averaged 421 records.

Record Map

774 stations

774 station records on 11 September 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 September 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tarpley 3S	United States	Record daily precipitation	78.0 mm (3.1 in)	58 of 100 (Notable)
Collie	Australia	Record daily precipitation	41.0 mm (1.6 in)	55 of 100 (Notable)
Courtenay 1 NW	United States	Record daily precipitation	36.1 mm (1.4 in)	52 of 100 (Notable)
Mixquiahuala (Smn)	Mexico	Record daily precipitation	62.0 mm (2.4 in)	51 of 100 (Notable)
Estell Manor	United States	Record daily precipitation	86.6 mm (3.4 in)	50 of 100 (Notable)
Mc Henry 3W	United States	Record daily precipitation	35.1 mm (1.4 in)	50 of 100 (Notable)
New Park	United States	Record daily precipitation	104.1 mm (4.1 in)	49 of 100 (Notable)
Maquixco	Mexico	Record daily precipitation	48.8 mm (1.9 in)	48 of 100 (Notable)
Strawn 8 NNE	United States	Record daily precipitation	83.8 mm (3.3 in)	48 of 100 (Notable)
Elberton 2 N	United States	Record low maximum temperature	21.1 C (70.0 F)	45 of 100 (Notable)
Totutla	Mexico	Record daily precipitation	124.0 mm (4.9 in)	44 of 100 (Notable)
Pembina	United States	Record daily precipitation	27.9 mm (1.1 in)	43 of 100 (Notable)
Nuwara Eliya	Sri Lanka	Record high maximum temperature	23.8 C (74.8 F)	42 of 100 (Notable)
El Progreso	Mexico	Record daily precipitation	52.8 mm (2.1 in)	42 of 100 (Notable)
Franklin 3 NW	United States	Record low maximum temperature	23.9 C (75.0 F)	42 of 100 (Notable)
Medina	United States	Record daily precipitation	33.0 mm (1.3 in)	42 of 100 (Notable)
Lavon Dam	United States	Record daily precipitation	97.8 mm (3.9 in)	42 of 100 (Notable)
Ai-Petri	Ukraine	Record high minimum temperature	14.2 C (57.6 F)	41 of 100 (Notable)
Brevard	United States	Record low maximum temperature	17.8 C (64.0 F)	41 of 100 (Notable)
Roxboro 7 ESE	United States	Record low maximum temperature	21.7 C (71.1 F)	41 of 100 (Notable)
Cajon de Pea	Mexico	Record high maximum temperature	38.9 C (102.0 F)	39 of 100 (Notable)
Rockford 3 ESE	United States	Record daily precipitation	60.2 mm (2.4 in)	39 of 100 (Notable)
Aldervale	Australia	Record daily precipitation	25.8 mm (1.0 in)	38 of 100 (Notable)
Comondu	Mexico	Record high minimum temperature	30.0 C (86.0 F)	38 of 100 (Notable)
Lenoir	United States	Record low maximum temperature	20.6 C (69.1 F)	38 of 100 (Notable)
Wishek	United States	Record daily precipitation	25.4 mm (1.0 in)	38 of 100 (Notable)
Redfield	United States	Record daily precipitation	38.1 mm (1.5 in)	38 of 100 (Notable)
Dongfang	China	Record daily precipitation	83.1 mm (3.3 in)	37 of 100 (Notable)
Rancho Viejo	Mexico	Record daily precipitation	86.9 mm (3.4 in)	37 of 100 (Notable)
Dushanbe	Tajikistan	Record low minimum temperature	5.2 C (41.4 F)	37 of 100 (Notable)
Dover	United States	Record daily precipitation	90.4 mm (3.6 in)	37 of 100 (Notable)
Tryon	United States	Record low maximum temperature	18.3 C (64.9 F)	37 of 100 (Notable)
Westhope	United States	Record daily precipitation	32.5 mm (1.3 in)	37 of 100 (Notable)
Kerrville 3 NNE	United States	Record daily precipitation	77.7 mm (3.1 in)	37 of 100 (Notable)
Waxahachie	United States	Record daily precipitation	88.9 mm (3.5 in)	37 of 100 (Notable)
Balingup	Australia	Record daily precipitation	28.8 mm (1.1 in)	36 of 100 (Notable)
San Bernabe	Mexico	Record daily precipitation	79.8 mm (3.1 in)	36 of 100 (Notable)
Canyon Dam	United States	Record daily precipitation	83.8 mm (3.3 in)	35 of 100 (Notable)
Northcliffe	Australia	Record daily precipitation	29.0 mm (1.1 in)	34 of 100 (Routine)
Huetamo	Mexico	Record daily precipitation	50.8 mm (2.0 in)	34 of 100 (Routine)
San Luis Potosi (Dge)	Mexico	Record daily precipitation	39.4 mm (1.6 in)	34 of 100 (Routine)
Octoraro Lake	United States	Record daily precipitation	97.8 mm (3.9 in)	34 of 100 (Routine)
Spicewood	United States	Record daily precipitation	39.1 mm (1.5 in)	34 of 100 (Routine)
Parafield Airport	Australia	Record high maximum temperature	30.1 C (86.2 F)	33 of 100 (Routine)
Atlatlahuacan	Mexico	Record high minimum temperature	16.7 C (62.1 F)	33 of 100 (Routine)
Izucar de Matamoros (Smn)	Mexico	Record daily precipitation	37.8 mm (1.5 in)	33 of 100 (Routine)
Tian-Shan	Kyrgyzstan	Record low minimum temperature	-15.8 C (3.6 F)	32 of 100 (Routine)
Ostas I Hegra	Norway	Record daily precipitation	39.2 mm (1.5 in)	32 of 100 (Routine)
Chestertown	United States	Record low maximum temperature	16.1 C (61.0 F)	32 of 100 (Routine)
Granger	United States	Record daily precipitation	68.6 mm (2.7 in)	32 of 100 (Routine)
Middletown Harrisburg Intl AP	United States	Record daily precipitation	55.1 mm (2.2 in)	32 of 100 (Routine)
Gonzalez	Mexico	Record low minimum temperature	15.0 C (59.0 F)	31 of 100 (Routine)
Los Pescados (Cfe)	Mexico	Record daily precipitation	60.2 mm (2.4 in)	31 of 100 (Routine)
Erbogacen	Russia	Record high minimum temperature	10.9 C (51.6 F)	31 of 100 (Routine)
Rock Mills	United States	Record low maximum temperature	23.3 C (73.9 F)	31 of 100 (Routine)
Edmore 4NW	United States	Record daily precipitation	33.5 mm (1.3 in)	31 of 100 (Routine)
Mc Intosh 6 SE	United States	Record daily precipitation	25.9 mm (1.0 in)	31 of 100 (Routine)
Woomera Aerodrome	Australia	Record high maximum temperature	35.5 C (95.9 F)	30 of 100 (Routine)
Pericos	Mexico	Record high minimum temperature	16.1 C (61.0 F)	30 of 100 (Routine)
Tarandacuao	Mexico	Record daily precipitation	54.6 mm (2.1 in)	30 of 100 (Routine)

Counts by Type and Timescale

774 records

Records set or tied on 11 September 2009 by type: Highest daily maximum 177, Lowest daily maximum 148, Highest daily minimum 204, Lowest daily minimum 50, Heaviest daily rainfall 195.

Records on 11 September 2009 by type
Record type	Records
Highest daily maximum	177
Lowest daily maximum	148
Highest daily minimum	204
Lowest daily minimum	50
Heaviest daily rainfall	195
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 11 September 2009 by timescale: all-time 2, monthly 18, daily 754.

How Much Records Were Beaten By

554 broken records

Margins by which the 554 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 78.5. Ties are not counted.

Top 20 by Significance

11 September 2009

Top 20 records on 11 September 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 September 2009	Tarpley 3S, US	daily rain	78.0 mm (3.1 in)	68.6 mm (2.7 in)	71 years	58 of 100 (Notable)
11 September 2009	Collie, AU	daily rain	41.0 mm (1.6 in)	14.3 mm (0.6 in)	92 years	55 of 100 (Notable)
11 September 2009	Courtenay 1 NW, US	daily rain	36.1 mm (1.4 in)	25.4 mm (1.0 in)	66 years	52 of 100 (Notable)
11 September 2009	Mixquiahuala (Smn), MX	daily rain	62.0 mm (2.4 in)	42.7 mm (1.7 in)	35 years	51 of 100 (Notable)
11 September 2009	Estell Manor, US	daily rain	86.6 mm (3.4 in)	56.1 mm (2.2 in)	38 years	50 of 100 (Notable)
11 September 2009	Mc Henry 3W, US	daily rain	35.1 mm (1.4 in)	20.4 mm (0.8 in)	66 years	50 of 100 (Notable)
11 September 2009	New Park, US	daily rain	104.1 mm (4.1 in)	73.6 mm (2.9 in)	12 years	49 of 100 (Notable)
11 September 2009	Maquixco, MX	daily rain	48.8 mm (1.9 in)	27.5 mm (1.1 in)	43 years	48 of 100 (Notable)
11 September 2009	Strawn 8 NNE, US	daily rain	83.8 mm (3.3 in)	49.3 mm (1.9 in)	40 years	48 of 100 (Notable)
11 September 2009	Elberton 2 N, US	daily low max	21.1 C (70.0 F)	2.8 C (5.0 F)	95 years	45 of 100 (Notable)
11 September 2009	Totutla, MX	daily rain	124.0 mm (4.9 in)	78.5 mm (3.1 in)	7 years	44 of 100 (Notable)
11 September 2009	Pembina, US	daily rain	27.9 mm (1.1 in)	10.1 mm (0.4 in)	84 years	43 of 100 (Notable)
11 September 2009	Nuwara Eliya, LK	daily high max	23.8 C (74.8 F)	0.5 C (0.9 F)	120 years	42 of 100 (Notable)
11 September 2009	El Progreso, MX	daily rain	52.8 mm (2.1 in)	26.9 mm (1.1 in)	34 years	42 of 100 (Notable)
11 September 2009	Franklin 3 NW, US	daily low max	23.9 C (75.0 F)	2.2 C (4.0 F)	84 years	42 of 100 (Notable)
11 September 2009	Medina, US	daily rain	33.0 mm (1.3 in)	22.1 mm (0.9 in)	44 years	42 of 100 (Notable)
11 September 2009	Lavon Dam, US	daily rain	97.8 mm (3.9 in)	65.3 mm (2.6 in)	19 years	42 of 100 (Notable)
11 September 2009	Ai-Petri, UA	daily high min	14.2 C (57.6 F)	0.7 C (1.3 F)	100 years	41 of 100 (Notable)
11 September 2009	Brevard, US	daily low max	17.8 C (64.0 F)	1.6 C (2.9 F)	92 years	41 of 100 (Notable)
11 September 2009	Roxboro 7 ESE, US	daily low max	21.7 C (71.1 F)	0.5 C (0.9 F)	110 years	41 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 2009

Records set or tied on this calendar date in each year from 1809 to 2009. 2009 had 774 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 2009-09-11: 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 10	464
10 to 20	44
20 to 30	22
30 to 40	9
40 to 50	7
50 to 60	2
60 to 70	4
70 to 80	2