Weather Records on 23 September 2011

666 weather records were set or tied worldwide on 23 September 2011. Highest significance: La Grange 1N, US.

Key Facts for 23 September 2011

On 23 September 2011, 666 weather records were set or tied at long-record stations worldwide.
417 were record highs and 128 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 22 monthly and 643 daily.
La Grange 1N set a daily record precipitation of 119.4 mm (4.7 in) on 23 September 2011.
Across 169 earlier years (1793 to 2026) the same calendar date averaged 430 records.

Record Map

666 stations

666 station records on 23 September 2011 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 23 September 2011: highest significance records shown on the map
Station	Country	Type	Value	Significance
La Grange 1N	United States	Record daily precipitation	119.4 mm (4.7 in)	75 of 100 (Major)
Newnan 7 WNW	United States	Record daily precipitation	90.2 mm (3.6 in)	54 of 100 (Notable)
Clearwater	United States	Record high minimum temperature	17.2 C (63.0 F)	49 of 100 (Notable)
El Rosario	Mexico	Record high maximum temperature	47.8 C (118.0 F)	48 of 100 (Notable)
Coupeville 1 S	United States	Record high minimum temperature	15.6 C (60.1 F)	48 of 100 (Notable)
Winthrop UNIV	United States	Record high minimum temperature	22.8 C (73.0 F)	44 of 100 (Notable)
Sydney (Observatory Hill)	Australia	Record high maximum temperature	32.5 C (90.5 F)	43 of 100 (Notable)
Saint Leo	United States	Record daily precipitation	82.5 mm (3.2 in)	43 of 100 (Notable)
Clemson UNIV	United States	Record daily precipitation	75.2 mm (3.0 in)	43 of 100 (Notable)
Kurgan	Russia	Record daily precipitation	27.6 mm (1.1 in)	42 of 100 (Notable)
Laurens	United States	Record daily precipitation	56.9 mm (2.2 in)	42 of 100 (Notable)
Tekirdag	Turkey	Record daily precipitation	53.8 mm (2.1 in)	41 of 100 (Notable)
Cascade 5 S	United States	Record high minimum temperature	16.1 C (61.0 F)	41 of 100 (Notable)
Great Falls 16St	United States	Record high minimum temperature	13.9 C (57.0 F)	41 of 100 (Notable)
Gail	United States	Record high maximum temperature	36.1 C (97.0 F)	40 of 100 (Notable)
Darrington Rs	United States	Record high minimum temperature	15.6 C (60.1 F)	39 of 100 (Notable)
Portland	United States	Record daily precipitation	34.0 mm (1.3 in)	38 of 100 (Notable)
Big Sandy	United States	Record high minimum temperature	13.9 C (57.0 F)	38 of 100 (Notable)
Octoraro Lake	United States	Record daily precipitation	121.4 mm (4.8 in)	38 of 100 (Notable)
Aberdeen	United States	Record high minimum temperature	17.8 C (64.0 F)	38 of 100 (Notable)
San Antonio Sur	Mexico	Record high maximum temperature	40.6 C (105.1 F)	36 of 100 (Notable)
Augusta	United States	Record high minimum temperature	16.1 C (61.0 F)	36 of 100 (Notable)
Austin #2	United States	Record high minimum temperature	17.2 C (63.0 F)	36 of 100 (Notable)
Elizabeth City	United States	Record daily precipitation	34.5 mm (1.4 in)	36 of 100 (Notable)
Mt Gilead 4 W	United States	Record daily precipitation	33.3 mm (1.3 in)	35 of 100 (Notable)
Forks 1 E	United States	Record high minimum temperature	16.7 C (62.1 F)	35 of 100 (Notable)
Whidbey Island NAS	United States	Record high maximum temperature	26.7 C (80.1 F)	35 of 100 (Notable)
Milpa Alta	Mexico	Record low maximum temperature	13.9 C (57.0 F)	34 of 100 (Routine)
Calico Rock 2 WSW	United States	Record low maximum temperature	16.1 C (61.0 F)	34 of 100 (Routine)
Leeds	United States	Record daily precipitation	125.7 mm (4.9 in)	33 of 100 (Routine)
Gaylord Bay	United States	Record daily precipitation	74.9 mm (2.9 in)	33 of 100 (Routine)
Concrete Ppl Fish STN	United States	Record high minimum temperature	15.0 C (59.0 F)	33 of 100 (Routine)
Seattle Tacoma AP	United States	Record high minimum temperature	17.2 C (63.0 F)	33 of 100 (Routine)
Belgaum/Sambra	India	Record low minimum temperature	14.6 C (58.3 F)	32 of 100 (Routine)
San Felipe	Mexico	Record high minimum temperature	25.0 C (77.0 F)	32 of 100 (Routine)
Stockton Fire STN 4	United States	Record high minimum temperature	17.8 C (64.0 F)	32 of 100 (Routine)
Pisgah Forest 3 NE	United States	Record daily precipitation	77.2 mm (3.0 in)	32 of 100 (Routine)
Elwha Rs	United States	Record high minimum temperature	13.9 C (57.0 F)	32 of 100 (Routine)
Landsburg	United States	Record high minimum temperature	13.3 C (55.9 F)	32 of 100 (Routine)
Longview	United States	Record high minimum temperature	15.0 C (59.0 F)	32 of 100 (Routine)
Cumberland	United States	Record low maximum temperature	7.8 C (46.0 F)	32 of 100 (Routine)
Chon Buri	Thailand	Record daily precipitation	143.8 mm (5.7 in)	31 of 100 (Routine)
Gila Bend 2SE	United States	Record high maximum temperature	44.4 C (111.9 F)	31 of 100 (Routine)
Putnam Lake	United States	Record daily precipitation	72.4 mm (2.9 in)	31 of 100 (Routine)
Cove 1 E	United States	Record high maximum temperature	32.8 C (91.0 F)	31 of 100 (Routine)
Sanya	China	Record low maximum temperature	23.5 C (74.3 F)	30 of 100 (Routine)
Frontera Amatenango	Mexico	Record low maximum temperature	21.7 C (71.1 F)	30 of 100 (Routine)
Pichucalco (Smn)	Mexico	Record low maximum temperature	20.6 C (69.1 F)	30 of 100 (Routine)
Joplin	United States	Record high maximum temperature	31.7 C (89.1 F)	30 of 100 (Routine)
Jiulong	China	Record daily precipitation	36.6 mm (1.4 in)	29 of 100 (Routine)
Bahia de Los Angeles	Mexico	Record high maximum temperature	40.0 C (104.0 F)	29 of 100 (Routine)
Zaragoza (Smn)	Mexico	Record high maximum temperature	40.0 C (104.0 F)	29 of 100 (Routine)
Suaqui Grande (Smn)	Mexico	Record high maximum temperature	45.0 C (113.0 F)	29 of 100 (Routine)
Prachin Buri	Thailand	Record daily precipitation	95.5 mm (3.8 in)	29 of 100 (Routine)
Kent	United States	Record high minimum temperature	17.2 C (63.0 F)	29 of 100 (Routine)
San Luis	Argentina	Record low minimum temperature	-0.1 C (31.8 F)	28 of 100 (Routine)
Nicolas Bravo KM. 71	Mexico	Record daily precipitation	60.5 mm (2.4 in)	28 of 100 (Routine)
Palo Verde	Mexico	Record high maximum temperature	45.0 C (113.0 F)	28 of 100 (Routine)
Plan de Ayala	Mexico	Record low minimum temperature	10.0 C (50.0 F)	28 of 100 (Routine)
Linguere	Senegal	Record low maximum temperature	29.0 C (84.2 F)	28 of 100 (Routine)

Counts by Type and Timescale

666 records

Records set or tied on 23 September 2011 by type: Highest daily maximum 204, Lowest daily maximum 64, Highest daily minimum 213, Lowest daily minimum 64, Heaviest daily rainfall 121.

Records on 23 September 2011 by type
Record type	Records
Highest daily maximum	204
Lowest daily maximum	64
Highest daily minimum	213
Lowest daily minimum	64
Heaviest daily rainfall	121
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 23 September 2011 by timescale: all-time 1, monthly 22, daily 643.

How Much Records Were Beaten By

449 broken records

Margins by which the 449 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 83.3. Ties are not counted.

Top 20 by Significance

23 September 2011

Top 20 records on 23 September 2011 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 September 2011	La Grange 1N, US	daily rain	119.4 mm (4.7 in)	62.2 mm (2.4 in)	121 years	75 of 100 (Major)
23 September 2011	Newnan 7 WNW, US	daily rain	90.2 mm (3.6 in)	51.8 mm (2.0 in)	41 years	54 of 100 (Notable)
23 September 2011	Clearwater, US	daily high min	17.2 C (63.0 F)	3.3 C (5.9 F)	108 years	49 of 100 (Notable)
23 September 2011	El Rosario, MX	all-time high max	47.8 C (118.0 F)	5.6 C (10.1 F)	21 years	48 of 100 (Notable)
23 September 2011	Coupeville 1 S, US	daily high min	15.6 C (60.1 F)	2.3 C (4.1 F)	104 years	48 of 100 (Notable)
23 September 2011	Winthrop UNIV, US	daily high min	22.8 C (73.0 F)	1.7 C (3.1 F)	100 years	44 of 100 (Notable)
23 September 2011	Sydney (Observatory Hill), AU	daily high max	32.5 C (90.5 F)	1.2 C (2.2 F)	104 years	43 of 100 (Notable)
23 September 2011	Saint Leo, US	daily rain	82.5 mm (3.2 in)	19.5 mm (0.8 in)	81 years	43 of 100 (Notable)
23 September 2011	Clemson UNIV, US	daily rain	75.2 mm (3.0 in)	9.2 mm (0.36 in)	98 years	43 of 100 (Notable)
23 September 2011	Kurgan, RU	monthly rain	27.6 mm (1.1 in)	1.1 mm (0.04 in)	67 years	42 of 100 (Notable)
23 September 2011	Laurens, US	daily rain	56.9 mm (2.2 in)	31.0 mm (1.2 in)	62 years	42 of 100 (Notable)
23 September 2011	Tekirdag, TR	daily rain	53.8 mm (2.1 in)	43.6 mm (1.7 in)	4 years	41 of 100 (Notable)
23 September 2011	Cascade 5 S, US	daily high min	16.1 C (61.0 F)	0.5 C (0.9 F)	104 years	41 of 100 (Notable)
23 September 2011	Great Falls 16St, US	daily high min	13.9 C (57.0 F)	0.6 C (1.1 F)	104 years	41 of 100 (Notable)
23 September 2011	Gail, US	daily high max	36.1 C (97.0 F)	0.5 C (0.9 F)	97 years	40 of 100 (Notable)
23 September 2011	Darrington Rs, US	daily high min	15.6 C (60.1 F)	3.4 C (6.1 F)	64 years	39 of 100 (Notable)
23 September 2011	Portland, US	daily rain	34.0 mm (1.3 in)	17.5 mm (0.7 in)	64 years	38 of 100 (Notable)
23 September 2011	Big Sandy, US	daily high min	13.9 C (57.0 F)	3.9 C (7.0 F)	70 years	38 of 100 (Notable)
23 September 2011	Octoraro Lake, US	daily rain	121.4 mm (4.8 in)	83.3 mm (3.3 in)	8 years	38 of 100 (Notable)
23 September 2011	Aberdeen, US	daily high min	17.8 C (64.0 F)	1.1 C (2.0 F)	85 years	38 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 2011

Records set or tied on this calendar date in each year from 1793 to 2011. 2011 had 666 records.

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

Records on 09-23 in each year
Year	Records
1793	1
1796	1
1799	1
1804	1
1832	1
1835	1
1838	1
1842	3
1843	1
1845	2
1848	1
1849	1
1850	1
1851	2
1854	3
1855	1
1859	2
1864	1
1865	1
1866	1
1868	1
1871	1
1872	1
1874	1
1875	1
1876	1
1877	1
1881	4
1882	2
1885	1
1886	1
1887	1
1888	1
1889	3
1890	2
1891	1
1892	2
1893	4
1895	9
1896	5
1897	1
1898	2
1899	4
1900	4
1901	2
1902	6
1903	7
1904	19
1905	6
1906	6
1907	19
1908	19
1909	15
1910	8
1911	11
1912	15
1913	22
1914	29
1915	25
1916	324
1917	56
1918	34
1919	40
1920	44
1921	47
1922	34
1923	74
1924	194
1925	223
1926	459
1927	247
1928	382
1929	198
1930	472
1931	600
1932	383
1933	281
1934	361
1935	239
1936	377
1937	557
1938	389
1939	279
1940	374
1941	490
1942	557
1943	322
1944	381
1945	652
1946	623
1947	803
1948	259
1949	496
1950	267
1951	462
1952	432
1953	271
1954	324
1955	852
1956	299
1957	539
1958	641
1959	307
1960	470
1961	670
1962	344
1963	568
1964	322
1965	783
1966	528
1967	341
1968	481
1969	450
1970	1,457
1971	578
1972	461
1973	674
1974	1,543
1975	1,038
1976	463
1977	616
1978	500
1979	586
1980	1,037
1981	717
1982	775
1983	1,744
1984	1,121
1985	924
1986	740
1987	1,077
1988	653
1989	1,376
1990	702
1991	519
1992	976
1993	983
1994	1,140
1995	1,868
1996	809
1997	1,060
1998	1,326
1999	1,207
2000	2,026
2001	790
2002	930
2003	1,243
2004	986
2005	1,207
2006	1,509
2007	1,153
2008	835
2009	1,201
2010	1,360
2011	666
2012	785
2013	573
2014	595
2015	587
2016	774
2017	1,371
2018	693
2019	565
2020	618
2021	602
2022	551
2023	812
2024	499
2025	449
2026	384

Download the Data

Data for records on 2011-09-23: 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	430
20 to 40	14
40 to 60	3
60 to 80	1
80 to 100	1