Weather Records on 15 September 2023

507 weather records were set or tied worldwide on 15 September 2023. Highest significance: Novyj Ushtogan, KZ.

Key Facts for 15 September 2023

On 15 September 2023, 507 weather records were set or tied at long-record stations worldwide.
362 were record highs and 43 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 13 monthly and 494 daily.
Novyj Ushtogan set a monthly record daily precipitation of 99.3 mm (3.9 in) on 15 September 2023.
Across 170 earlier years (1797 to 2026) the same calendar date averaged 412 records.

Record Map

507 stations

507 station records on 15 September 2023 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 September 2023: highest significance records shown on the map
Station	Country	Type	Value	Significance
Novyj Ushtogan	Kazakhstan	Record daily precipitation	99.3 mm (3.9 in)	72 of 100 (Major)
Craig	United States	Record daily precipitation	90.7 mm (3.6 in)	71 of 100 (Major)
Hirado	Japan	Record daily precipitation	353.1 mm (13.9 in)	64 of 100 (Major)
Port Vila Bauerfield	Vanuatu	Record daily precipitation	198.1 mm (7.8 in)	56 of 100 (Notable)
Brighton 3 SE	United States	Record daily precipitation	41.9 mm (1.6 in)	54 of 100 (Notable)
Bowhill	United Kingdom	Record daily precipitation	31.2 mm (1.2 in)	50 of 100 (Notable)
Heyuan	China	Record daily precipitation	123.7 mm (4.9 in)	48 of 100 (Notable)
Castellon de la Plana	Spain	Record daily precipitation	30.8 mm (1.2 in)	45 of 100 (Notable)
Skagway	United States	Record low maximum temperature	7.8 C (46.0 F)	45 of 100 (Notable)
Lankaran	Azerbaijan	Record daily precipitation	99.1 mm (3.9 in)	44 of 100 (Notable)
Northglenn	United States	Record daily precipitation	41.9 mm (1.6 in)	44 of 100 (Notable)
Liberal	United States	Record daily precipitation	48.3 mm (1.9 in)	44 of 100 (Notable)
Littlefield	United States	Record daily precipitation	45.0 mm (1.8 in)	43 of 100 (Notable)
Raymondville	United States	Record high maximum temperature	40.0 C (104.0 F)	43 of 100 (Notable)
Sambalpur	India	Record daily precipitation	45.0 mm (1.8 in)	41 of 100 (Notable)
Salekhard	Russia	Record high maximum temperature	21.8 C (71.2 F)	41 of 100 (Notable)
Plant City	United States	Record high maximum temperature	36.7 C (98.1 F)	40 of 100 (Notable)
Skagway	United States	Record daily precipitation	32.0 mm (1.3 in)	40 of 100 (Notable)
Wupatki Nm	United States	Record daily precipitation	28.4 mm (1.1 in)	38 of 100 (Notable)
Sedgwick 5 S	United States	Record daily precipitation	38.1 mm (1.5 in)	38 of 100 (Notable)
Alva 1W	United States	Record daily precipitation	66.3 mm (2.6 in)	38 of 100 (Notable)
Slaton	United States	Record daily precipitation	68.6 mm (2.7 in)	38 of 100 (Notable)
Soto la Marina (Obs)	Mexico	Record high maximum temperature	41.7 C (107.1 F)	37 of 100 (Notable)
Coldwater	United States	Record daily precipitation	61.5 mm (2.4 in)	37 of 100 (Notable)
Eskdalemuir	United Kingdom	Record daily precipitation	35.6 mm (1.4 in)	35 of 100 (Notable)
Manston	United Kingdom	Record high maximum temperature	23.9 C (75.0 F)	35 of 100 (Notable)
Essendon Airport	Australia	Record high maximum temperature	24.5 C (76.1 F)	34 of 100 (Routine)
Irozaki	Japan	Record high minimum temperature	26.8 C (80.2 F)	34 of 100 (Routine)
Gijon Musel	Spain	Record high maximum temperature	28.6 C (83.5 F)	34 of 100 (Routine)
Atakpane	Togo	Record high minimum temperature	23.0 C (73.4 F)	34 of 100 (Routine)
Byers 5 ENE	United States	Record daily precipitation	37.3 mm (1.5 in)	34 of 100 (Routine)
Laredo 2	United States	Record daily precipitation	77.7 mm (3.1 in)	34 of 100 (Routine)
Raymondville	United States	Record high minimum temperature	26.7 C (80.1 F)	34 of 100 (Routine)
W	United States	Record daily precipitation	46.5 mm (1.8 in)	34 of 100 (Routine)
Ploumanac'h	France	Record high maximum temperature	25.9 C (78.6 F)	33 of 100 (Routine)
Nagoya	Japan	Record high minimum temperature	26.1 C (79.0 F)	33 of 100 (Routine)
Roosevelt Roads	Puerto Rico [United States]	Record high maximum temperature	33.3 C (91.9 F)	33 of 100 (Routine)
Baytown	United States	Record daily precipitation	43.4 mm (1.7 in)	33 of 100 (Routine)
Harlingen	United States	Record high minimum temperature	26.7 C (80.1 F)	33 of 100 (Routine)
Roseburg Rgnl AP	United States	Record high maximum temperature	36.1 C (97.0 F)	33 of 100 (Routine)
Wuzhou	China	Record daily precipitation	34.5 mm (1.4 in)	32 of 100 (Routine)
Threave	United Kingdom	Record daily precipitation	31.2 mm (1.2 in)	32 of 100 (Routine)
Harlingen	United States	Record high maximum temperature	38.3 C (100.9 F)	32 of 100 (Routine)
Albany	Australia	Record high minimum temperature	14.1 C (57.4 F)	31 of 100 (Routine)
Kofu	Japan	Record high minimum temperature	24.5 C (76.1 F)	31 of 100 (Routine)
Chichibu	Japan	Record high minimum temperature	22.7 C (72.9 F)	31 of 100 (Routine)
Yoakum	United States	Record daily precipitation	63.2 mm (2.5 in)	31 of 100 (Routine)
Harlingen Rio Grande Vly Intl	United States	Record high maximum temperature	38.3 C (100.9 F)	31 of 100 (Routine)
Ciudad Victoria	Mexico	Record high maximum temperature	40.6 C (105.1 F)	30 of 100 (Routine)
Kuantan	Malaysia	Record high minimum temperature	25.5 C (77.9 F)	30 of 100 (Routine)
Irako	Japan	Record high maximum temperature	33.4 C (92.1 F)	29 of 100 (Routine)
Omaezaki	Japan	Record high minimum temperature	26.9 C (80.4 F)	29 of 100 (Routine)
Yokohama	Japan	Record high minimum temperature	26.3 C (79.3 F)	29 of 100 (Routine)
Gruver	United States	Record daily precipitation	26.9 mm (1.1 in)	29 of 100 (Routine)
Cotulla la Salle Co AP	United States	Record high maximum temperature	40.0 C (104.0 F)	29 of 100 (Routine)
Trinidad AP	United States	Record low maximum temperature	13.3 C (55.9 F)	29 of 100 (Routine)
XI Ujimqin Qi	China	Record high minimum temperature	15.0 C (59.0 F)	28 of 100 (Routine)
Nikko	Japan	Record high minimum temperature	17.6 C (63.7 F)	28 of 100 (Routine)
Agalega	Mauritius	Record high maximum temperature	32.6 C (90.7 F)	28 of 100 (Routine)
Guadalajara	Spain	Record daily precipitation	35.3 mm (1.4 in)	28 of 100 (Routine)

Counts by Type and Timescale

507 records

Records set or tied on 15 September 2023 by type: Highest daily maximum 161, Lowest daily maximum 32, Highest daily minimum 201, Lowest daily minimum 11, Heaviest daily rainfall 101, Heaviest daily snowfall 1.

Records on 15 September 2023 by type
Record type	Records
Highest daily maximum	161
Lowest daily maximum	32
Highest daily minimum	201
Lowest daily minimum	11
Heaviest daily rainfall	101
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 15 September 2023 by timescale: all-time 0, monthly 13, daily 494.

How Much Records Were Beaten By

412 broken records

Margins by which the 412 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 135.2. Ties are not counted.

Top 20 by Significance

15 September 2023

Top 20 records on 15 September 2023 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 September 2023	Novyj Ushtogan, KZ	monthly rain	99.3 mm (3.9 in)	68.1 mm (2.7 in)	53 years	72 of 100 (Major)
15 September 2023	Craig, US	daily rain	90.7 mm (3.6 in)	51.3 mm (2.0 in)	78 years	71 of 100 (Major)
15 September 2023	Hirado, JP	monthly rain	353.1 mm (13.9 in)	135.2 mm (5.3 in)	26 years	64 of 100 (Major)
15 September 2023	Port Vila Bauerfield, VU	monthly rain	198.1 mm (7.8 in)	51.0 mm (2.0 in)	24 years	56 of 100 (Notable)
15 September 2023	Brighton 3 SE, US	daily rain	41.9 mm (1.6 in)	27.2 mm (1.1 in)	36 years	54 of 100 (Notable)
15 September 2023	Bowhill, GB	daily rain	31.2 mm (1.2 in)	18.4 mm (0.7 in)	40 years	50 of 100 (Notable)
15 September 2023	Heyuan, CN	daily rain	123.7 mm (4.9 in)	68.0 mm (2.7 in)	20 years	48 of 100 (Notable)
15 September 2023	Castellon de la Plana, ES	daily rain	30.8 mm (1.2 in)	20.3 mm (0.8 in)	86 years	45 of 100 (Notable)
15 September 2023	Skagway, US	daily low max	7.8 C (46.0 F)	1.6 C (2.9 F)	118 years	45 of 100 (Notable)
15 September 2023	Lankaran, AZ	daily rain	99.1 mm (3.9 in)	26.8 mm (1.1 in)	76 years	44 of 100 (Notable)
15 September 2023	Northglenn, US	daily rain	41.9 mm (1.6 in)	23.4 mm (0.9 in)	12 years	44 of 100 (Notable)
15 September 2023	Liberal, US	daily rain	48.3 mm (1.9 in)	23.4 mm (0.9 in)	50 years	44 of 100 (Notable)
15 September 2023	Littlefield, US	daily rain	45.0 mm (1.8 in)	27.7 mm (1.1 in)	56 years	43 of 100 (Notable)
15 September 2023	Raymondville, US	daily high max	40.0 C (104.0 F)	1.1 C (2.0 F)	102 years	43 of 100 (Notable)
15 September 2023	Sambalpur, IN	daily rain	45.0 mm (1.8 in)	17.3 mm (0.7 in)	80 years	41 of 100 (Notable)
15 September 2023	Salekhard, RU	daily high max	21.8 C (71.2 F)	1.8 C (3.2 F)	90 years	41 of 100 (Notable)
15 September 2023	Plant City, US	daily high max	36.7 C (98.1 F)	1.7 C (3.1 F)	73 years	40 of 100 (Notable)
15 September 2023	Skagway, US	daily rain	32.0 mm (1.3 in)	0.2 mm (0.01 in)	113 years	40 of 100 (Notable)
15 September 2023	Wupatki Nm, US	daily rain	28.4 mm (1.1 in)	15.2 mm (0.6 in)	24 years	38 of 100 (Notable)
15 September 2023	Sedgwick 5 S, US	monthly rain	38.1 mm (1.5 in)	4.6 mm (0.18 in)	50 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

1797 to 2023

Records set or tied on this calendar date in each year from 1797 to 2023. 2023 had 507 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 2023-09-15: 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	394
20 to 40	12
40 to 60	3
60 to 80	2
80 to 100	0
100 to 120	0
120 to 140	1