Weather Records on 18 September 2007

670 weather records were set or tied worldwide on 18 September 2007. Highest significance: Letalisce Jozeta Pucnika Ljubl, SI.

Key Facts for 18 September 2007

On 18 September 2007, 670 weather records were set or tied at long-record stations worldwide.
261 were record highs and 176 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 22 monthly and 645 daily.
Letalisce Jozeta Pucnika Ljubl set an all-time record daily precipitation of 227.1 mm (8.9 in) on 18 September 2007.
Across 163 earlier years (1803 to 2026) the same calendar date averaged 420 records.

Record Map

670 stations

670 station records on 18 September 2007 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 September 2007: highest significance records shown on the map
Station	Country	Type	Value	Significance
Letalisce Jozeta Pucnika Ljubl	Slovenia	Record daily precipitation	227.1 mm (8.9 in)	74 of 100 (Major)
Leech Lake	United States	Record daily precipitation	69.1 mm (2.7 in)	64 of 100 (Major)
Kunda	Estonia	Record daily precipitation	34.8 mm (1.4 in)	60 of 100 (Major)
Mikkeli Anttola Pihlajasalo	Finland	Record daily precipitation	34.4 mm (1.4 in)	55 of 100 (Notable)
Savonlinna Laukansaari	Finland	Record daily precipitation	42.7 mm (1.7 in)	55 of 100 (Notable)
Kerimaki Rauvanniemi	Finland	Record daily precipitation	36.6 mm (1.4 in)	55 of 100 (Notable)
Tooma	Estonia	Record daily precipitation	32.1 mm (1.3 in)	54 of 100 (Notable)
Valkeala Kouvolankyla	Finland	Record daily precipitation	44.0 mm (1.7 in)	52 of 100 (Notable)
Mantyharju Halmeniemi	Finland	Record daily precipitation	40.2 mm (1.6 in)	52 of 100 (Notable)
Kileer	Russia	Record daily precipitation	31.0 mm (1.2 in)	51 of 100 (Notable)
New Hope	United States	Record daily precipitation	62.2 mm (2.4 in)	51 of 100 (Notable)
Viljandi	Estonia	Record daily precipitation	28.5 mm (1.1 in)	50 of 100 (Notable)
Huailai	China	Record daily precipitation	44.1 mm (1.7 in)	49 of 100 (Notable)
Sulkava Kaipola	Finland	Record daily precipitation	36.6 mm (1.4 in)	48 of 100 (Notable)
Sangary	Russia	Record daily precipitation	27.9 mm (1.1 in)	48 of 100 (Notable)
Vega 2NW	United States	Record daily precipitation	41.1 mm (1.6 in)	48 of 100 (Notable)
Kouvola Utti Lentoportintie	Finland	Record daily precipitation	44.4 mm (1.7 in)	47 of 100 (Notable)
Kouvola Anjala	Finland	Record daily precipitation	44.7 mm (1.8 in)	47 of 100 (Notable)
Virolahti Ravijoki	Finland	Record daily precipitation	60.1 mm (2.4 in)	47 of 100 (Notable)
Anjalankoski Sippola Hirvela	Finland	Record daily precipitation	42.6 mm (1.7 in)	47 of 100 (Notable)
Sandy Lake Dam Libby	United States	Record daily precipitation	28.4 mm (1.1 in)	47 of 100 (Notable)
Kouvola Voikoski	Finland	Record daily precipitation	29.9 mm (1.2 in)	46 of 100 (Notable)
Virolahti Koivuniemi	Finland	Record daily precipitation	61.2 mm (2.4 in)	46 of 100 (Notable)
Mikkeli Rantakyla	Finland	Record daily precipitation	25.9 mm (1.0 in)	46 of 100 (Notable)
Akita	Japan	Record daily precipitation	108.5 mm (4.3 in)	46 of 100 (Notable)
Calera	Mexico	Record high minimum temperature	20.6 C (69.1 F)	46 of 100 (Notable)
Clovis 13 N	United States	Record daily precipitation	60.7 mm (2.4 in)	46 of 100 (Notable)
Turi	Estonia	Record daily precipitation	48.5 mm (1.9 in)	45 of 100 (Notable)
Ruokolahti Kotalahti Sipinen	Finland	Record daily precipitation	37.0 mm (1.5 in)	45 of 100 (Notable)
Joensuu Pyhaselka	Finland	Record daily precipitation	33.4 mm (1.3 in)	45 of 100 (Notable)
Murska Sobota-Rakican	Slovenia	Record daily precipitation	54.1 mm (2.1 in)	45 of 100 (Notable)
Virolahti Nopala	Finland	Record daily precipitation	42.0 mm (1.7 in)	44 of 100 (Notable)
Raakkyla Kk	Finland	Record daily precipitation	31.6 mm (1.2 in)	44 of 100 (Notable)
Outokumpu Sysmankyla Suvisrant	Finland	Record daily precipitation	32.0 mm (1.3 in)	44 of 100 (Notable)
Smartno Pri Slovenj Gradcu	Slovenia	Record daily precipitation	87.3 mm (3.4 in)	44 of 100 (Notable)
Porvoo Bengtsby	Finland	Record daily precipitation	25.7 mm (1.0 in)	43 of 100 (Notable)
Punkaharju Laukansaari	Finland	Record daily precipitation	38.7 mm (1.5 in)	43 of 100 (Notable)
Szombathely	Hungary	Record daily precipitation	30.9 mm (1.2 in)	43 of 100 (Notable)
Gadag	India	Record daily precipitation	89.9 mm (3.5 in)	43 of 100 (Notable)
Brainerd	United States	Record daily precipitation	40.6 mm (1.6 in)	43 of 100 (Notable)
Tashkent	Uzbekistan	Record low maximum temperature	13.5 C (56.3 F)	43 of 100 (Notable)
Georgetown Post Office	Australia	Record high maximum temperature	38.5 C (101.3 F)	42 of 100 (Notable)
Iitti Kausala	Finland	Record daily precipitation	27.3 mm (1.1 in)	42 of 100 (Notable)
Archer City 2W	United States	Record daily precipitation	65.3 mm (2.6 in)	42 of 100 (Notable)
Rantasalmi Tuusmaki	Finland	Record daily precipitation	28.5 mm (1.1 in)	41 of 100 (Notable)
Jogeva	Estonia	Record daily precipitation	29.9 mm (1.2 in)	40 of 100 (Notable)
Kredarica	Slovenia	Record daily precipitation	192.2 mm (7.6 in)	40 of 100 (Notable)
Ljubljana Bezigrad	Slovenia	Record daily precipitation	66.2 mm (2.6 in)	40 of 100 (Notable)
Garden City Exp STN	United States	Record daily precipitation	41.7 mm (1.6 in)	40 of 100 (Notable)
Newton Rigg	United Kingdom	Record low minimum temperature	-1.0 C (30.2 F)	39 of 100 (Notable)
Calera	Mexico	Record high maximum temperature	35.0 C (95.0 F)	38 of 100 (Notable)
Puumala Sorjola	Finland	Record daily precipitation	42.8 mm (1.7 in)	37 of 100 (Notable)
Aldama (Dge)	Mexico	Record low minimum temperature	15.0 C (59.0 F)	37 of 100 (Notable)
Minneapolis-St Paul Intl AP	United States	Record daily precipitation	45.0 mm (1.8 in)	37 of 100 (Notable)
Hamina Onkamaa	Finland	Record daily precipitation	39.1 mm (1.5 in)	36 of 100 (Notable)
Bradford	United Kingdom	Record low minimum temperature	3.2 C (37.8 F)	36 of 100 (Notable)
Ogdensburg 4 NE	United States	Record low minimum temperature	1.1 C (34.0 F)	36 of 100 (Notable)
Chitradurga	India	Record low maximum temperature	21.3 C (70.3 F)	35 of 100 (Notable)
Morioka	Japan	Record daily precipitation	115.6 mm (4.6 in)	35 of 100 (Notable)
Lajas Substn	Puerto Rico [United States]	Record daily precipitation	96.3 mm (3.8 in)	35 of 100 (Notable)

Counts by Type and Timescale

670 records

Records set or tied on 18 September 2007 by type: Highest daily maximum 157, Lowest daily maximum 39, Highest daily minimum 104, Lowest daily minimum 137, Heaviest daily rainfall 232, Deepest snow cover 1.

Records on 18 September 2007 by type
Record type	Records
Highest daily maximum	157
Lowest daily maximum	39
Highest daily minimum	104
Lowest daily minimum	137
Heaviest daily rainfall	232
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 18 September 2007 by timescale: all-time 3, monthly 22, daily 645.

How Much Records Were Beaten By

536 broken records

Margins by which the 536 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 115.2. Ties are not counted.

Top 20 by Significance

18 September 2007

Top 20 records on 18 September 2007 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 September 2007	Letalisce Jozeta Pucnika Ljubl, SI	all-time rain	227.1 mm (8.9 in)	115.2 mm (4.5 in)	33 years	74 of 100 (Major)
18 September 2007	Leech Lake, US	daily rain	69.1 mm (2.7 in)	35.6 mm (1.4 in)	56 years	64 of 100 (Major)
18 September 2007	Kunda, EE	daily rain	34.8 mm (1.4 in)	23.9 mm (0.9 in)	37 years	60 of 100 (Major)
18 September 2007	Mikkeli Anttola Pihlajasalo, FI	daily rain	34.4 mm (1.4 in)	20.6 mm (0.8 in)	37 years	55 of 100 (Notable)
18 September 2007	Savonlinna Laukansaari, FI	daily rain	42.7 mm (1.7 in)	22.2 mm (0.9 in)	37 years	55 of 100 (Notable)
18 September 2007	Kerimaki Rauvanniemi, FI	daily rain	36.6 mm (1.4 in)	22.5 mm (0.9 in)	37 years	55 of 100 (Notable)
18 September 2007	Tooma, EE	daily rain	32.1 mm (1.3 in)	12.6 mm (0.5 in)	69 years	54 of 100 (Notable)
18 September 2007	Valkeala Kouvolankyla, FI	daily rain	44.0 mm (1.7 in)	36.4 mm (1.4 in)	28 years	52 of 100 (Notable)
18 September 2007	Mantyharju Halmeniemi, FI	daily rain	40.2 mm (1.6 in)	26.6 mm (1.0 in)	28 years	52 of 100 (Notable)
18 September 2007	Kileer, RU	daily rain	31.0 mm (1.2 in)	24.4 mm (1.0 in)	24 years	51 of 100 (Notable)
18 September 2007	New Hope, US	daily rain	62.2 mm (2.4 in)	40.1 mm (1.6 in)	38 years	51 of 100 (Notable)
18 September 2007	Viljandi, EE	daily rain	28.5 mm (1.1 in)	18.2 mm (0.7 in)	22 years	50 of 100 (Notable)
18 September 2007	Huailai, CN	daily rain	44.1 mm (1.7 in)	31.4 mm (1.2 in)	16 years	49 of 100 (Notable)
18 September 2007	Sulkava Kaipola, FI	daily rain	36.6 mm (1.4 in)	16.8 mm (0.7 in)	37 years	48 of 100 (Notable)
18 September 2007	Sangary, RU	daily rain	27.9 mm (1.1 in)	15.1 mm (0.6 in)	20 years	48 of 100 (Notable)
18 September 2007	Vega 2NW, US	daily rain	41.1 mm (1.6 in)	18.0 mm (0.7 in)	80 years	48 of 100 (Notable)
18 September 2007	Kouvola Utti Lentoportintie, FI	daily rain	44.4 mm (1.7 in)	27.6 mm (1.1 in)	12 years	47 of 100 (Notable)
18 September 2007	Kouvola Anjala, FI	daily rain	44.7 mm (1.8 in)	29.7 mm (1.2 in)	12 years	47 of 100 (Notable)
18 September 2007	Virolahti Ravijoki, FI	daily rain	60.1 mm (2.4 in)	43.3 mm (1.7 in)	12 years	47 of 100 (Notable)
18 September 2007	Anjalankoski Sippola Hirvela, FI	daily rain	42.6 mm (1.7 in)	28.0 mm (1.1 in)	12 years	47 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 2007

Records set or tied on this calendar date in each year from 1803 to 2007. 2007 had 670 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 2007-09-18: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	498
20 to 40	27
40 to 60	9
60 to 80	1
80 to 100	0
100 to 120	1