Weather Records on 18 September 1990

904 weather records were set or tied worldwide on 18 September 1990. Highest significance: Hakodate, JP.

Key Facts for 18 September 1990

On 18 September 1990, 904 weather records were set or tied at long-record stations worldwide.
137 were record highs and 533 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 10 monthly and 893 daily.
Hakodate set an all-time record daily precipitation of 270.0 mm (10.6 in) on 18 September 1990.
Across 163 earlier years (1803 to 2026) the same calendar date averaged 418 records.

Record Map

904 stations

904 station records on 18 September 1990 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 September 1990: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hakodate	Japan	Record daily precipitation	270.0 mm (10.6 in)	64 of 100 (Major)
Haswell	United States	Record daily precipitation	48.3 mm (1.9 in)	61 of 100 (Major)
Tezontepec (Smn)	Mexico	Record daily precipitation	43.9 mm (1.7 in)	56 of 100 (Notable)
Innisfail	Australia	Record daily precipitation	53.2 mm (2.1 in)	55 of 100 (Notable)
Micurinsk	Russia	Record daily precipitation	48.9 mm (1.9 in)	55 of 100 (Notable)
Kawaihapai 841	United States	Record daily precipitation	48.5 mm (1.9 in)	54 of 100 (Notable)
Apatzingan (Smn)	Mexico	Record daily precipitation	79.8 mm (3.1 in)	53 of 100 (Notable)
Nagoya	Japan	Record daily precipitation	150.1 mm (5.9 in)	50 of 100 (Notable)
Bjorheim I Ryfylke	Norway	Record daily precipitation	63.5 mm (2.5 in)	50 of 100 (Notable)
Puente Colgante	Mexico	Record high minimum temperature	26.7 C (80.1 F)	48 of 100 (Notable)
Hutchinson 10 SW	United States	Record daily precipitation	83.8 mm (3.3 in)	48 of 100 (Notable)
Nazare	Brazil	Record daily precipitation	52.4 mm (2.1 in)	43 of 100 (Notable)
Kwa-Mbonambi (Bos)	South Africa	Record daily precipitation	63.5 mm (2.5 in)	43 of 100 (Notable)
Arcadia	United States	Record low minimum temperature	15.6 C (60.1 F)	43 of 100 (Notable)
Crescent City	United States	Record high maximum temperature	38.9 C (102.0 F)	43 of 100 (Notable)
Sviland	Norway	Record daily precipitation	60.4 mm (2.4 in)	42 of 100 (Notable)
South Johnstone Exp STN	Australia	Record daily precipitation	46.2 mm (1.8 in)	40 of 100 (Notable)
Gar	Russia	Record daily precipitation	40.0 mm (1.6 in)	40 of 100 (Notable)
Lewiston	United States	Record low maximum temperature	10.6 C (51.1 F)	40 of 100 (Notable)
Grayling	United States	Record low minimum temperature	-3.3 C (26.1 F)	40 of 100 (Notable)
Sauda	Norway	Record daily precipitation	56.1 mm (2.2 in)	39 of 100 (Notable)
Hoopeston	United States	Record low maximum temperature	13.9 C (57.0 F)	39 of 100 (Notable)
Flemington 5 NNW	United States	Record low maximum temperature	15.0 C (59.0 F)	39 of 100 (Notable)
Valliant 3 W	United States	Record daily precipitation	80.0 mm (3.1 in)	39 of 100 (Notable)
Naalehu 14	United States	Record high maximum temperature	31.7 C (89.1 F)	39 of 100 (Notable)
Charleston	United States	Record low maximum temperature	15.0 C (59.0 F)	38 of 100 (Notable)
Eastport	United States	Record low maximum temperature	10.6 C (51.1 F)	38 of 100 (Notable)
Sidney 6NNW	United States	Record daily precipitation	26.7 mm (1.1 in)	38 of 100 (Notable)
Hightstown 2 W	United States	Record low maximum temperature	15.6 C (60.1 F)	38 of 100 (Notable)
Somerville 4 NW	United States	Record low maximum temperature	16.1 C (61.0 F)	38 of 100 (Notable)
Auburn	United States	Record low minimum temperature	1.1 C (34.0 F)	38 of 100 (Notable)
Bolivar	United States	Record low maximum temperature	10.6 C (51.1 F)	38 of 100 (Notable)
Warren	United States	Record low maximum temperature	12.2 C (54.0 F)	38 of 100 (Notable)
Paris	United States	Record daily precipitation	39.4 mm (1.6 in)	38 of 100 (Notable)
Denver-Stapleton	United States	Record daily precipitation	25.9 mm (1.0 in)	38 of 100 (Notable)
Ignacio Lopez Rayon	Mexico	Record low minimum temperature	17.8 C (64.0 F)	37 of 100 (Notable)
Tiruchchirapalli	India	Record daily precipitation	51.3 mm (2.0 in)	36 of 100 (Notable)
Tiree	United Kingdom	Record daily precipitation	27.9 mm (1.1 in)	36 of 100 (Notable)
Norwalk Wwtp	United States	Record low maximum temperature	15.0 C (59.0 F)	36 of 100 (Notable)
Kingston	United States	Record low maximum temperature	16.1 C (61.0 F)	36 of 100 (Notable)
Burnet	United States	Record high minimum temperature	25.0 C (77.0 F)	36 of 100 (Notable)
Encinal	United States	Record daily precipitation	50.8 mm (2.0 in)	36 of 100 (Notable)
Ft Davis	United States	Record daily precipitation	45.2 mm (1.8 in)	36 of 100 (Notable)
Silkwood Post Office	Australia	Record daily precipitation	42.6 mm (1.7 in)	35 of 100 (Notable)
San Diego Curupatzeo	Mexico	Record daily precipitation	41.9 mm (1.6 in)	34 of 100 (Routine)
Niamey Aero	Niger	Record daily precipitation	46.0 mm (1.8 in)	34 of 100 (Routine)
Fukaura	Japan	Record daily precipitation	110.0 mm (4.3 in)	33 of 100 (Routine)
Takamatsu	Japan	Record daily precipitation	118.1 mm (4.6 in)	33 of 100 (Routine)
Elliotdale (Tnk)	South Africa	Record daily precipitation	55.0 mm (2.2 in)	33 of 100 (Routine)
Hudson	United States	Record daily precipitation	64.8 mm (2.6 in)	33 of 100 (Routine)
Little Falls City Rsch	United States	Record low minimum temperature	-1.7 C (28.9 F)	33 of 100 (Routine)
Lowville	United States	Record low maximum temperature	10.6 C (51.1 F)	33 of 100 (Routine)
Raleigh State UNIV	United States	Record low minimum temperature	9.4 C (48.9 F)	33 of 100 (Routine)
Warsaw 2 NW	United States	Record low minimum temperature	4.4 C (39.9 F)	33 of 100 (Routine)
Dutch Harbor	United States	Record low minimum temperature	1.1 C (34.0 F)	33 of 100 (Routine)
Wink FAA AP	United States	Record daily precipitation	62.2 mm (2.4 in)	33 of 100 (Routine)
Te Kowai Exp STN	Australia	Record low maximum temperature	21.9 C (71.4 F)	32 of 100 (Routine)
Tula	Russia	Record daily precipitation	29.8 mm (1.2 in)	32 of 100 (Routine)
Veselaja Gorka	Russia	Record daily precipitation	51.9 mm (2.0 in)	32 of 100 (Routine)
Champaign 3S	United States	Record low maximum temperature	13.9 C (57.0 F)	32 of 100 (Routine)

Counts by Type and Timescale

904 records

Records set or tied on 18 September 1990 by type: Highest daily maximum 60, Lowest daily maximum 276, Highest daily minimum 77, Lowest daily minimum 257, Heaviest daily rainfall 233, Heaviest daily snowfall 1.

Records on 18 September 1990 by type
Record type	Records
Highest daily maximum	60
Lowest daily maximum	276
Highest daily minimum	77
Lowest daily minimum	257
Heaviest daily rainfall	233
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 18 September 1990 by timescale: all-time 1, monthly 10, daily 893.

How Much Records Were Beaten By

681 broken records

Margins by which the 681 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 122.9. Ties are not counted.

Top 20 by Significance

18 September 1990

Top 20 records on 18 September 1990 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 September 1990	Hakodate, JP	all-time rain	270.0 mm (10.6 in)	122.9 mm (4.8 in)	0 years	64 of 100 (Major)
18 September 1990	Haswell, US	daily rain	48.3 mm (1.9 in)	37.1 mm (1.5 in)	65 years	61 of 100 (Major)
18 September 1990	Tezontepec (Smn), MX	daily rain	43.9 mm (1.7 in)	34.0 mm (1.3 in)	44 years	56 of 100 (Notable)
18 September 1990	Innisfail, AU	daily rain	53.2 mm (2.1 in)	22.0 mm (0.9 in)	101 years	55 of 100 (Notable)
18 September 1990	Micurinsk, RU	daily rain	48.9 mm (1.9 in)	38.0 mm (1.5 in)	17 years	55 of 100 (Notable)
18 September 1990	Kawaihapai 841, US	monthly rain	48.5 mm (1.9 in)	19.3 mm (0.8 in)	2 years	54 of 100 (Notable)
18 September 1990	Apatzingan (Smn), MX	daily rain	79.8 mm (3.1 in)	48.8 mm (1.9 in)	61 years	53 of 100 (Notable)
18 September 1990	Nagoya, JP	daily rain	150.1 mm (5.9 in)	92.9 mm (3.7 in)	36 years	50 of 100 (Notable)
18 September 1990	Bjorheim I Ryfylke, NO	daily rain	63.5 mm (2.5 in)	40.3 mm (1.6 in)	24 years	50 of 100 (Notable)
18 September 1990	Puente Colgante, MX	daily high min	26.7 C (80.1 F)	3.9 C (7.0 F)	24 years	48 of 100 (Notable)
18 September 1990	Hutchinson 10 SW, US	daily rain	83.8 mm (3.3 in)	64.7 mm (2.5 in)	24 years	48 of 100 (Notable)
18 September 1990	Nazare, BR	daily rain	52.4 mm (2.1 in)	32.6 mm (1.3 in)	25 years	43 of 100 (Notable)
18 September 1990	Kwa-Mbonambi (Bos), ZA	daily rain	63.5 mm (2.5 in)	42.9 mm (1.7 in)	45 years	43 of 100 (Notable)
18 September 1990	Arcadia, US	daily low min	15.6 C (60.1 F)	1.6 C (2.9 F)	80 years	43 of 100 (Notable)
18 September 1990	Crescent City, US	daily high max	38.9 C (102.0 F)	3.3 C (5.9 F)	77 years	43 of 100 (Notable)
18 September 1990	Sviland, NO	daily rain	60.4 mm (2.4 in)	21.9 mm (0.9 in)	40 years	42 of 100 (Notable)
18 September 1990	South Johnstone Exp STN, AU	daily rain	46.2 mm (1.8 in)	23.3 mm (0.9 in)	39 years	40 of 100 (Notable)
18 September 1990	Gar, RU	daily rain	40.0 mm (1.6 in)	20.5 mm (0.8 in)	33 years	40 of 100 (Notable)
18 September 1990	Lewiston, US	daily low max	10.6 C (51.1 F)	1.6 C (2.9 F)	94 years	40 of 100 (Notable)
18 September 1990	Grayling, US	daily low min	-3.3 C (26.1 F)	1.6 C (2.9 F)	95 years	40 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 1990

Records set or tied on this calendar date in each year from 1803 to 1990. 1990 had 904 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 1990-09-18: 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	646
20 to 40	26
40 to 60	6
60 to 80	1
80 to 100	1
100 to 120	0
120 to 140	1