Weather Records on 15 September 2001

837 weather records were set or tied worldwide on 15 September 2001. Highest significance: Madison, US.

Key Facts for 15 September 2001

On 15 September 2001, 837 weather records were set or tied at long-record stations worldwide.
344 were record highs and 315 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 23 monthly and 812 daily.
Madison set a monthly record daily precipitation of 96.3 mm (3.8 in) on 15 September 2001.
Across 170 earlier years (1797 to 2026) the same calendar date averaged 410 records.

Record Map

837 stations

837 station records on 15 September 2001 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 September 2001: highest significance records shown on the map
Station	Country	Type	Value	Significance
Madison	United States	Record daily precipitation	96.3 mm (3.8 in)	63 of 100 (Major)
Clark	United States	Record daily precipitation	48.0 mm (1.9 in)	61 of 100 (Major)
Inverness 3 SE	United States	Record low maximum temperature	22.2 C (72.0 F)	60 of 100 (Major)
Inverness 3 SE	United States	Record daily precipitation	121.7 mm (4.8 in)	56 of 100 (Notable)
Superior	United States	Record daily precipitation	68.6 mm (2.7 in)	56 of 100 (Notable)
Fowler 1 SE	United States	Record daily precipitation	35.6 mm (1.4 in)	55 of 100 (Notable)
Bartow 1SE	United States	Record low maximum temperature	23.3 C (73.9 F)	52 of 100 (Notable)
Plant City	United States	Record low maximum temperature	23.3 C (73.9 F)	52 of 100 (Notable)
Horinsk	Russia	Record daily precipitation	30.0 mm (1.2 in)	51 of 100 (Notable)
Bartlett 1W	United States	Record daily precipitation	94.0 mm (3.7 in)	49 of 100 (Notable)
Oakdale	United States	Record daily precipitation	56.1 mm (2.2 in)	49 of 100 (Notable)
Sosnovo-Ozerskoe	Russia	Record daily precipitation	29.3 mm (1.2 in)	48 of 100 (Notable)
Federal Pt	United States	Record daily precipitation	82.3 mm (3.2 in)	48 of 100 (Notable)
Albion	United States	Record daily precipitation	66.0 mm (2.6 in)	47 of 100 (Notable)
Elgin	United States	Record daily precipitation	79.0 mm (3.1 in)	47 of 100 (Notable)
Setauket Strong	United States	Record low minimum temperature	3.9 C (39.0 F)	46 of 100 (Notable)
Howard	United States	Record daily precipitation	31.0 mm (1.2 in)	45 of 100 (Notable)
Dufur	United States	Record high minimum temperature	17.2 C (63.0 F)	44 of 100 (Notable)
Clarkson	United States	Record daily precipitation	79.2 mm (3.1 in)	43 of 100 (Notable)
Glen St Mary 1 W	United States	Record low maximum temperature	22.2 C (72.0 F)	42 of 100 (Notable)
Dresden	United States	Record daily precipitation	56.1 mm (2.2 in)	42 of 100 (Notable)
Neligh	United States	Record daily precipitation	41.9 mm (1.6 in)	42 of 100 (Notable)
Orlando Executive AP	United States	Record low maximum temperature	23.3 C (73.9 F)	42 of 100 (Notable)
Lisbon	United States	Record daily precipitation	182.9 mm (7.2 in)	41 of 100 (Notable)
Salem AP (McNary Field)	United States	Record high minimum temperature	17.2 C (63.0 F)	41 of 100 (Notable)
Suchiate	Mexico	Record low minimum temperature	17.8 C (64.0 F)	40 of 100 (Notable)
Pitea	Sweden	Record high minimum temperature	12.3 C (54.1 F)	40 of 100 (Notable)
Ruidoso	United States	Record daily precipitation	40.6 mm (1.6 in)	40 of 100 (Notable)
Denison	United States	Record low maximum temperature	12.8 C (55.0 F)	39 of 100 (Notable)
Stanton	United States	Record daily precipitation	41.9 mm (1.6 in)	39 of 100 (Notable)
Bradenton 5 ESE	United States	Record daily precipitation	129.0 mm (5.1 in)	38 of 100 (Notable)
Wauchula	United States	Record low maximum temperature	24.4 C (75.9 F)	38 of 100 (Notable)
Chugwater	United States	Record daily precipitation	26.4 mm (1.0 in)	38 of 100 (Notable)
Centro Experimental W-75	Mexico	Record daily precipitation	154.9 mm (6.1 in)	37 of 100 (Notable)
Sisal	Mexico	Record low minimum temperature	17.2 C (63.0 F)	37 of 100 (Notable)
Teriberka	Russia	Record high minimum temperature	10.9 C (51.6 F)	37 of 100 (Notable)
Milford 2 SE	United States	Record low maximum temperature	17.2 C (63.0 F)	37 of 100 (Notable)
Daytona Beach	United States	Record low maximum temperature	25.0 C (77.0 F)	37 of 100 (Notable)
Saint Leo	United States	Record low maximum temperature	23.9 C (75.0 F)	37 of 100 (Notable)
Harare (Kutsaga)	Zimbabwe	Record low maximum temperature	16.7 C (62.1 F)	37 of 100 (Notable)
Gallivare_A	Sweden	Record high minimum temperature	9.6 C (49.3 F)	36 of 100 (Notable)
Cambridge	United States	Record daily precipitation	30.5 mm (1.2 in)	36 of 100 (Notable)
Coimbatore/Peelamed	India	Record daily precipitation	46.0 mm (1.8 in)	35 of 100 (Notable)
Svyatoy Nos;Cape(Closed)	Russia	Record high minimum temperature	10.3 C (50.5 F)	35 of 100 (Notable)
Balagansk	Russia	Record daily precipitation	37.7 mm (1.5 in)	35 of 100 (Notable)
Avon Park 2 W	United States	Record low maximum temperature	22.2 C (72.0 F)	35 of 100 (Notable)
Bradenton 5 ESE	United States	Record low maximum temperature	25.0 C (77.0 F)	35 of 100 (Notable)
Homer 3NE	United States	Record daily precipitation	57.2 mm (2.3 in)	35 of 100 (Notable)
Tulun	Russia	Record daily precipitation	45.2 mm (1.8 in)	34 of 100 (Routine)
Lyndon 3 ENE	United States	Record daily precipitation	85.1 mm (3.4 in)	34 of 100 (Routine)
Ericson 8 WNW	United States	Record daily precipitation	47.2 mm (1.9 in)	34 of 100 (Routine)
Marlow 1 WSW	United States	Record daily precipitation	90.2 mm (3.6 in)	34 of 100 (Routine)
McKinney Muni AP	United States	Record daily precipitation	75.4 mm (3.0 in)	34 of 100 (Routine)
Orlando Intl AP	United States	Record low maximum temperature	23.3 C (73.9 F)	34 of 100 (Routine)
Etla	Mexico	Record low minimum temperature	6.7 C (44.1 F)	33 of 100 (Routine)
Karasjok	Norway	Record high minimum temperature	9.4 C (48.9 F)	33 of 100 (Routine)
Vardoe	Norway	Record high minimum temperature	9.8 C (49.6 F)	33 of 100 (Routine)
Arcadia	United States	Record daily precipitation	26.2 mm (1.0 in)	33 of 100 (Routine)
Clay Ctr 6 ESE	United States	Record daily precipitation	62.5 mm (2.5 in)	33 of 100 (Routine)
Apatzingan (Smn)	Mexico	Record low minimum temperature	19.4 C (66.9 F)	32 of 100 (Routine)

Counts by Type and Timescale

837 records

Records set or tied on 15 September 2001 by type: Highest daily maximum 115, Lowest daily maximum 175, Highest daily minimum 229, Lowest daily minimum 140, Heaviest daily rainfall 178.

Records on 15 September 2001 by type
Record type	Records
Highest daily maximum	115
Lowest daily maximum	175
Highest daily minimum	229
Lowest daily minimum	140
Heaviest daily rainfall	178
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 15 September 2001 by timescale: all-time 2, monthly 23, daily 812.

How Much Records Were Beaten By

638 broken records

Margins by which the 638 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 84.5. Ties are not counted.

Top 20 by Significance

15 September 2001

Top 20 records on 15 September 2001 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 September 2001	Madison, US	monthly rain	96.3 mm (3.8 in)	16.8 mm (0.7 in)	101 years	63 of 100 (Major)
15 September 2001	Clark, US	daily rain	48.0 mm (1.9 in)	24.4 mm (1.0 in)	104 years	61 of 100 (Major)
15 September 2001	Inverness 3 SE, US	daily low max	22.2 C (72.0 F)	4.5 C (8.1 F)	99 years	60 of 100 (Major)
15 September 2001	Inverness 3 SE, US	daily rain	121.7 mm (4.8 in)	68.6 mm (2.7 in)	22 years	56 of 100 (Notable)
15 September 2001	Superior, US	daily rain	68.6 mm (2.7 in)	48.8 mm (1.9 in)	59 years	56 of 100 (Notable)
15 September 2001	Fowler 1 SE, US	daily rain	35.6 mm (1.4 in)	32.0 mm (1.3 in)	22 years	55 of 100 (Notable)
15 September 2001	Bartow 1SE, US	daily low max	23.3 C (73.9 F)	3.4 C (6.1 F)	88 years	52 of 100 (Notable)
15 September 2001	Plant City, US	daily low max	23.3 C (73.9 F)	3.4 C (6.1 F)	86 years	52 of 100 (Notable)
15 September 2001	Horinsk, RU	daily rain	30.0 mm (1.2 in)	23.2 mm (0.9 in)	16 years	51 of 100 (Notable)
15 September 2001	Bartlett 1W, US	daily rain	94.0 mm (3.7 in)	55.9 mm (2.2 in)	14 years	49 of 100 (Notable)
15 September 2001	Oakdale, US	daily rain	56.1 mm (2.2 in)	14.2 mm (0.6 in)	96 years	49 of 100 (Notable)
15 September 2001	Sosnovo-Ozerskoe, RU	daily rain	29.3 mm (1.2 in)	19.0 mm (0.7 in)	31 years	48 of 100 (Notable)
15 September 2001	Federal Pt, US	daily rain	82.3 mm (3.2 in)	34.3 mm (1.4 in)	72 years	48 of 100 (Notable)
15 September 2001	Albion, US	daily rain	66.0 mm (2.6 in)	37.0 mm (1.5 in)	24 years	47 of 100 (Notable)
15 September 2001	Elgin, US	daily rain	79.0 mm (3.1 in)	37.6 mm (1.5 in)	24 years	47 of 100 (Notable)
15 September 2001	Setauket Strong, US	daily low min	3.9 C (39.0 F)	3.3 C (5.9 F)	96 years	46 of 100 (Notable)
15 September 2001	Howard, US	daily rain	31.0 mm (1.2 in)	8.1 mm (0.32 in)	95 years	45 of 100 (Notable)
15 September 2001	Dufur, US	monthly high min	17.2 C (63.0 F)	0.5 C (0.9 F)	83 years	44 of 100 (Notable)
15 September 2001	Clarkson, US	daily rain	79.2 mm (3.1 in)	43.6 mm (1.7 in)	14 years	43 of 100 (Notable)
15 September 2001	Glen St Mary 1 W, US	daily low max	22.2 C (72.0 F)	3.9 C (7.0 F)	68 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

1797 to 2001

Records set or tied on this calendar date in each year from 1797 to 2001. 2001 had 837 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 2001-09-15: 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 20	610
20 to 40	20
40 to 60	5
60 to 80	2
80 to 100	1