Weather Records on 18 September 2025

471 weather records were set or tied worldwide on 18 September 2025. Highest significance: Mulgrave Mill, AU.

Key Facts for 18 September 2025

On 18 September 2025, 471 weather records were set or tied at long-record stations worldwide.
367 were record highs and 23 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 6 monthly and 465 daily.
Mulgrave Mill set a daily record precipitation of 41.0 mm (1.6 in) on 18 September 2025.
Across 163 earlier years (1803 to 2026) the same calendar date averaged 421 records.

Record Map

471 stations

471 station records on 18 September 2025 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 September 2025: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mulgrave Mill	Australia	Record daily precipitation	41.0 mm (1.6 in)	68 of 100 (Major)
Onida 4 NW	United States	Record daily precipitation	64.5 mm (2.5 in)	64 of 100 (Major)
Detroit City AP	United States	Record daily precipitation	48.8 mm (1.9 in)	54 of 100 (Notable)
Murdo	United States	Record daily precipitation	50.8 mm (2.0 in)	51 of 100 (Notable)
Orient	United States	Record daily precipitation	60.2 mm (2.4 in)	49 of 100 (Notable)
Borrego Desert Park	United States	Record daily precipitation	48.0 mm (1.9 in)	48 of 100 (Notable)
Torrington 29N	United States	Record daily precipitation	46.2 mm (1.8 in)	48 of 100 (Notable)
Dawson	United States	Record daily precipitation	29.5 mm (1.2 in)	43 of 100 (Notable)
Marshfield 4 WSW	United States	Record high maximum temperature	36.1 C (97.0 F)	43 of 100 (Notable)
Winner	United States	Record daily precipitation	33.0 mm (1.3 in)	42 of 100 (Notable)
Kleve	Germany	Record high minimum temperature	16.6 C (61.9 F)	41 of 100 (Notable)
Cassville 1 NE	United States	Record high maximum temperature	33.3 C (91.9 F)	41 of 100 (Notable)
Potosi 4 SW	United States	Record high maximum temperature	33.9 C (93.0 F)	41 of 100 (Notable)
Eagle Rvr	United States	Record daily precipitation	29.0 mm (1.1 in)	41 of 100 (Notable)
Skagway	United States	Record high minimum temperature	10.6 C (51.1 F)	41 of 100 (Notable)
Yakataga AP	United States	Record high maximum temperature	15.6 C (60.1 F)	41 of 100 (Notable)
Kettleman City	United States	Record high minimum temperature	23.9 C (75.0 F)	40 of 100 (Notable)
Hazelton 4NW	United States	Record daily precipitation	35.6 mm (1.4 in)	39 of 100 (Notable)
Ordway 4 W	United States	Record daily precipitation	28.4 mm (1.1 in)	38 of 100 (Notable)
Buffalo 2N	United States	Record high maximum temperature	35.0 C (95.0 F)	38 of 100 (Notable)
Highmore	United States	Record daily precipitation	40.6 mm (1.6 in)	38 of 100 (Notable)
Eelde	Netherlands	Record high minimum temperature	16.0 C (60.8 F)	37 of 100 (Notable)
Bowdle	United States	Record daily precipitation	53.3 mm (2.1 in)	37 of 100 (Notable)
Oahe Dam	United States	Record daily precipitation	49.5 mm (1.9 in)	37 of 100 (Notable)
Chornomorske	Ukraine	Record daily precipitation	93.0 mm (3.7 in)	36 of 100 (Notable)
Big Bear Lake	United States	Record daily precipitation	49.3 mm (1.9 in)	36 of 100 (Notable)
Tracy Pumping Plt	United States	Record high minimum temperature	24.4 C (75.9 F)	36 of 100 (Notable)
De Bilt	Netherlands	Record high minimum temperature	17.3 C (63.1 F)	35 of 100 (Notable)
Tenerife/Los Rodeos	Spain	Record high minimum temperature	23.9 C (75.0 F)	35 of 100 (Notable)
Choshi	Japan	Record high maximum temperature	32.2 C (90.0 F)	34 of 100 (Routine)
Bellenden Ker Bottom STN	Australia	Record daily precipitation	132.0 mm (5.2 in)	33 of 100 (Routine)
Wessington Springs	United States	Record daily precipitation	26.7 mm (1.1 in)	33 of 100 (Routine)
Inhambane	Mozambique	Record high minimum temperature	24.0 C (75.2 F)	32 of 100 (Routine)
Navacerrada	Spain	Record high maximum temperature	27.1 C (80.8 F)	32 of 100 (Routine)
Wallingford	United Kingdom	Record high maximum temperature	26.2 C (79.2 F)	32 of 100 (Routine)
Campo	United States	Record high minimum temperature	18.9 C (66.0 F)	32 of 100 (Routine)
Licking 4N	United States	Record high maximum temperature	36.1 C (97.0 F)	32 of 100 (Routine)
Mc Laughlin 2SW	United States	Record daily precipitation	25.9 mm (1.0 in)	32 of 100 (Routine)
Albacete Los Llanos	Spain	Record high maximum temperature	35.5 C (95.9 F)	31 of 100 (Routine)
Izium	Ukraine	Record high minimum temperature	15.4 C (59.7 F)	31 of 100 (Routine)
Charles City	United States	Record daily precipitation	30.7 mm (1.2 in)	31 of 100 (Routine)
Essaouira	Morocco	Record high maximum temperature	28.2 C (82.8 F)	30 of 100 (Routine)
Tenerife/Los Rodeos	Spain	Record high maximum temperature	35.0 C (95.0 F)	30 of 100 (Routine)
Sanford Dam	United States	Record daily precipitation	49.3 mm (1.9 in)	30 of 100 (Routine)
March AFB	United States	Record high minimum temperature	20.0 C (68.0 F)	30 of 100 (Routine)
Sasebo Reg Met HQ	Japan	Record high minimum temperature	25.1 C (77.2 F)	29 of 100 (Routine)
Searchlight	United States	Record daily precipitation	25.4 mm (1.0 in)	29 of 100 (Routine)
Tanegashima	Japan	Record high minimum temperature	26.0 C (78.8 F)	28 of 100 (Routine)
Wellesbourne	United Kingdom	Record high maximum temperature	24.4 C (75.9 F)	28 of 100 (Routine)
Lake Sharpe Prj	United States	Record daily precipitation	27.7 mm (1.1 in)	28 of 100 (Routine)
Yakima AP	United States	Record high minimum temperature	15.6 C (60.1 F)	28 of 100 (Routine)
Schiphol	Netherlands	Record high minimum temperature	17.3 C (63.1 F)	27 of 100 (Routine)
Soria	Spain	Record high maximum temperature	34.3 C (93.7 F)	27 of 100 (Routine)
Madison Wwtp	United States	Record daily precipitation	30.0 mm (1.2 in)	27 of 100 (Routine)
Kirley 7 N	United States	Record daily precipitation	55.9 mm (2.2 in)	27 of 100 (Routine)
Payson	United States	Record high minimum temperature	16.1 C (61.0 F)	27 of 100 (Routine)
Barcaldine Post Office	Australia	Record high minimum temperature	21.5 C (70.7 F)	26 of 100 (Routine)
Kochi	Japan	Record high maximum temperature	34.1 C (93.4 F)	26 of 100 (Routine)
Moron de la Frontera	Spain	Record high minimum temperature	21.4 C (70.5 F)	26 of 100 (Routine)
Daroca	Spain	Record high maximum temperature	35.8 C (96.4 F)	26 of 100 (Routine)

Counts by Type and Timescale

471 records

Records set or tied on 18 September 2025 by type: Highest daily maximum 155, Lowest daily maximum 17, Highest daily minimum 212, Lowest daily minimum 6, Heaviest daily rainfall 80, Deepest snow cover 1.

Records on 18 September 2025 by type
Record type	Records
Highest daily maximum	155
Lowest daily maximum	17
Highest daily minimum	212
Lowest daily minimum	6
Heaviest daily rainfall	80
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 18 September 2025 by timescale: all-time 0, monthly 6, daily 465.

How Much Records Were Beaten By

375 broken records

Margins by which the 375 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 68.0. Ties are not counted.

Top 20 by Significance

18 September 2025

Top 20 records on 18 September 2025 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 September 2025	Mulgrave Mill, AU	daily rain	41.0 mm (1.6 in)	27.3 mm (1.1 in)	106 years	68 of 100 (Major)
18 September 2025	Onida 4 NW, US	daily rain	64.5 mm (2.5 in)	36.1 mm (1.4 in)	66 years	64 of 100 (Major)
18 September 2025	Detroit City AP, US	daily rain	48.8 mm (1.9 in)	25.2 mm (1.0 in)	76 years	54 of 100 (Notable)
18 September 2025	Murdo, US	daily rain	50.8 mm (2.0 in)	16.3 mm (0.6 in)	83 years	51 of 100 (Notable)
18 September 2025	Orient, US	daily rain	60.2 mm (2.4 in)	42.9 mm (1.7 in)	35 years	49 of 100 (Notable)
18 September 2025	Borrego Desert Park, US	daily rain	48.0 mm (1.9 in)	23.4 mm (0.9 in)	62 years	48 of 100 (Notable)
18 September 2025	Torrington 29N, US	daily rain	46.2 mm (1.8 in)	35.8 mm (1.4 in)	18 years	48 of 100 (Notable)
18 September 2025	Dawson, US	daily rain	29.5 mm (1.2 in)	16.0 mm (0.6 in)	64 years	43 of 100 (Notable)
18 September 2025	Marshfield 4 WSW, US	daily high max	36.1 C (97.0 F)	1.7 C (3.1 F)	115 years	43 of 100 (Notable)
18 September 2025	Winner, US	daily rain	33.0 mm (1.3 in)	9.4 mm (0.37 in)	79 years	42 of 100 (Notable)
18 September 2025	Kleve, DE	daily high min	16.6 C (61.9 F)	1.3 C (2.3 F)	92 years	41 of 100 (Notable)
18 September 2025	Cassville 1 NE, US	daily high max	33.3 C (91.9 F)	0.5 C (0.9 F)	114 years	41 of 100 (Notable)
18 September 2025	Potosi 4 SW, US	daily high max	33.9 C (93.0 F)	0.6 C (1.1 F)	131 years	41 of 100 (Notable)
18 September 2025	Eagle Rvr, US	daily rain	29.0 mm (1.1 in)	13.3 mm (0.5 in)	75 years	41 of 100 (Notable)
18 September 2025	Skagway, US	daily high min	10.6 C (51.1 F)	0.6 C (1.1 F)	116 years	41 of 100 (Notable)
18 September 2025	Yakataga AP, US	daily high max	15.6 C (60.1 F)	2.3 C (4.1 F)	75 years	41 of 100 (Notable)
18 September 2025	Kettleman City, US	daily high min	23.9 C (75.0 F)	4.5 C (8.1 F)	67 years	40 of 100 (Notable)
18 September 2025	Hazelton 4NW, US	daily rain	35.6 mm (1.4 in)	22.6 mm (0.9 in)	19 years	39 of 100 (Notable)
18 September 2025	Ordway 4 W, US	daily rain	28.4 mm (1.1 in)	11.1 mm (0.4 in)	54 years	38 of 100 (Notable)
18 September 2025	Buffalo 2N, US	daily high max	35.0 C (95.0 F)	0.6 C (1.1 F)	94 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

1803 to 2025

Records set or tied on this calendar date in each year from 1803 to 2025. 2025 had 471 records.

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

Records on 09-18 in each year
Year	Records
1803	1
1811	1
1814	1
1819	1
1829	1
1832	1
1834	1
1835	1
1837	2
1847	2
1848	1
1849	1
1851	4
1859	1
1861	1
1865	1
1869	1
1871	1
1875	1
1876	2
1877	1
1879	1
1880	1
1881	1
1882	1
1885	1
1886	4
1889	6
1890	1
1891	1
1893	4
1894	2
1895	2
1896	4
1897	3
1898	5
1899	3
1900	2
1901	10
1902	8
1903	58
1904	6
1905	22
1906	16
1907	4
1908	11
1909	17
1910	5
1911	8
1912	43
1913	44
1914	56
1915	41
1916	58
1917	99
1918	57
1919	48
1920	56
1921	213
1922	45
1923	114
1924	62
1925	269
1926	205
1927	189
1928	114
1929	309
1930	124
1931	429
1932	226
1933	370
1934	188
1935	281
1936	155
1937	422
1938	373
1939	190
1940	402
1941	318
1942	1,001
1943	624
1944	503
1945	732
1946	576
1947	927
1948	427
1949	356
1950	370
1951	320
1952	340
1953	245
1954	446
1955	672
1956	587
1957	429
1958	491
1959	829
1960	351
1961	478
1962	360
1963	453
1964	282
1965	1,172
1966	498
1967	357
1968	763
1969	424
1970	377
1971	1,245
1972	691
1973	593
1974	559
1975	976
1976	615
1977	619
1978	1,162
1979	709
1980	652
1981	1,671
1982	603
1983	936
1984	951
1985	636
1986	730
1987	1,244
1988	997
1989	778
1990	904
1991	1,377
1992	821
1993	747
1994	852
1995	935
1996	1,237
1997	935
1998	1,038
1999	583
2000	1,146
2001	993
2002	828
2003	815
2004	1,027
2005	781
2006	1,309
2007	670
2008	697
2009	692
2010	1,040
2011	1,050
2012	922
2013	666
2014	682
2015	934
2016	893
2017	518
2018	1,200
2019	768
2020	682
2021	582
2022	613
2023	639
2024	687
2025	471
2026	864

Download the Data

Data for records on 2025-09-18: 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Margin	Records
0 to 10	352
10 to 20	14
20 to 30	5
30 to 40	2
40 to 50	1
50 to 60	0
60 to 70	1