Weather Records on 17 September 1989

863 weather records were set or tied worldwide on 17 September 1989. Highest significance: Clearlake 4 SE, US.

Key Facts for 17 September 1989

On 17 September 1989, 863 weather records were set or tied at long-record stations worldwide.
336 were record highs and 174 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 26 monthly and 837 daily.
Clearlake 4 SE set a monthly record daily precipitation of 71.4 mm (2.8 in) on 17 September 1989.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 420 records.

Record Map

863 stations

863 station records on 17 September 1989 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 September 1989: highest significance records shown on the map
Station	Country	Type	Value	Significance
Clearlake 4 SE	United States	Record daily precipitation	71.4 mm (2.8 in)	61 of 100 (Major)
Red Bluff Muni AP	United States	Record daily precipitation	59.2 mm (2.3 in)	61 of 100 (Major)
Stony Gorge Rsvr	United States	Record daily precipitation	51.3 mm (2.0 in)	60 of 100 (Major)
Mina	United States	Record daily precipitation	30.7 mm (1.2 in)	59 of 100 (Notable)
Winters	United States	Record daily precipitation	34.8 mm (1.4 in)	56 of 100 (Notable)
Woodland 1 WNW	United States	Record daily precipitation	41.7 mm (1.6 in)	56 of 100 (Notable)
The Poplars	United States	Record daily precipitation	29.7 mm (1.2 in)	54 of 100 (Notable)
Kherson	Ukraine	Record daily precipitation	27.0 mm (1.1 in)	53 of 100 (Notable)
N Fk Rs	United States	Record daily precipitation	64.8 mm (2.6 in)	52 of 100 (Notable)
Lanihau 68.2	United States	Record daily precipitation	108.2 mm (4.3 in)	51 of 100 (Notable)
Auburn	United States	Record daily precipitation	36.3 mm (1.4 in)	50 of 100 (Notable)
Tiger Creek Ph	United States	Record daily precipitation	51.3 mm (2.0 in)	50 of 100 (Notable)
Camp Pardee	United States	Record daily precipitation	34.3 mm (1.4 in)	49 of 100 (Notable)
Chico UNIV Farm	United States	Record daily precipitation	49.8 mm (2.0 in)	48 of 100 (Notable)
Hat Creek	United States	Record daily precipitation	29.2 mm (1.1 in)	48 of 100 (Notable)
Sonoma	United States	Record low maximum temperature	16.1 C (61.0 F)	48 of 100 (Notable)
Woodfords	United States	Record daily precipitation	27.7 mm (1.1 in)	48 of 100 (Notable)
Ashland	United States	Record daily precipitation	30.0 mm (1.2 in)	48 of 100 (Notable)
Davis 2 WSW Exp Farm	United States	Record daily precipitation	35.6 mm (1.4 in)	47 of 100 (Notable)
Electra P H	United States	Record daily precipitation	38.1 mm (1.5 in)	47 of 100 (Notable)
Elliott	United States	Record daily precipitation	26.7 mm (1.1 in)	47 of 100 (Notable)
Sagehen Creek	United States	Record daily precipitation	33.8 mm (1.3 in)	47 of 100 (Notable)
Petropavlovsk-Kamchatskij	Russia	Record daily precipitation	58.2 mm (2.3 in)	46 of 100 (Notable)
Mather	United States	Record daily precipitation	39.9 mm (1.6 in)	46 of 100 (Notable)
Paskenta Rs	United States	Record daily precipitation	47.5 mm (1.9 in)	46 of 100 (Notable)
W Pt	United States	Record daily precipitation	48.3 mm (1.9 in)	46 of 100 (Notable)
Port Jervis	United States	Record daily precipitation	35.3 mm (1.4 in)	46 of 100 (Notable)
Sprague River 2 SE	United States	Record daily precipitation	33.5 mm (1.3 in)	46 of 100 (Notable)
Sierraville Rs	United States	Record daily precipitation	32.8 mm (1.3 in)	45 of 100 (Notable)
Salt Springs Pwr House	United States	Record daily precipitation	45.2 mm (1.8 in)	43 of 100 (Notable)
Cambridge	United States	Record daily precipitation	40.9 mm (1.6 in)	43 of 100 (Notable)
Yosemite Park HQ	United States	Record daily precipitation	33.3 mm (1.3 in)	42 of 100 (Notable)
Tracy Carbona	United States	Record daily precipitation	27.7 mm (1.1 in)	41 of 100 (Notable)
Petropavlovskij Majak	Russia	Record daily precipitation	48.8 mm (1.9 in)	40 of 100 (Notable)
Langebaan	South Africa	Record daily precipitation	25.0 mm (1.0 in)	39 of 100 (Notable)
Ash Mtn	United States	Record daily precipitation	34.3 mm (1.4 in)	39 of 100 (Notable)
Copco #1 Dam	United States	Record daily precipitation	40.6 mm (1.6 in)	39 of 100 (Notable)
Fiddletown Dexter Rch	United States	Record daily precipitation	36.3 mm (1.4 in)	39 of 100 (Notable)
Hetch Hetchy	United States	Record daily precipitation	41.4 mm (1.6 in)	39 of 100 (Notable)
High Springs	United States	Record daily precipitation	92.5 mm (3.6 in)	39 of 100 (Notable)
Manzanita Lake	United States	Record daily precipitation	49.8 mm (2.0 in)	38 of 100 (Notable)
Colgate Powerhouse	United States	Record daily precipitation	36.3 mm (1.4 in)	37 of 100 (Notable)
Georgetown Rs	United States	Record daily precipitation	48.3 mm (1.9 in)	37 of 100 (Notable)
Lake Spaulding	United States	Record daily precipitation	54.4 mm (2.1 in)	37 of 100 (Notable)
San Rafael-Civic Ctr	United States	Record low maximum temperature	16.1 C (61.0 F)	37 of 100 (Notable)
Tiger Creek Ph	United States	Record low maximum temperature	15.0 C (59.0 F)	37 of 100 (Notable)
Ibapah	United States	Record high minimum temperature	12.8 C (55.0 F)	37 of 100 (Notable)
Nampula	Mozambique	Record low maximum temperature	21.8 C (71.2 F)	36 of 100 (Notable)
Chornomorske	Ukraine	Record daily precipitation	37.1 mm (1.5 in)	36 of 100 (Notable)
Colusa 2 SSW	United States	Record daily precipitation	55.1 mm (2.2 in)	36 of 100 (Notable)
Placerville	United States	Record daily precipitation	39.1 mm (1.5 in)	36 of 100 (Notable)
Santa Rosa	United States	Record low maximum temperature	16.7 C (62.1 F)	36 of 100 (Notable)
Jackson Exp STN	United States	Record low maximum temperature	18.9 C (66.0 F)	36 of 100 (Notable)
Bowman Dam	United States	Record daily precipitation	57.7 mm (2.3 in)	35 of 100 (Notable)
Matamoras	United States	Record daily precipitation	50.0 mm (2.0 in)	35 of 100 (Notable)
Hilland 2 NW	United States	Record high maximum temperature	36.7 C (98.1 F)	35 of 100 (Notable)
Catemaco (Cfe)	Mexico	Record daily precipitation	191.3 mm (7.5 in)	34 of 100 (Routine)
Feodosiia	Ukraine	Record daily precipitation	26.9 mm (1.1 in)	34 of 100 (Routine)
Sevastopol',Mgs	Ukraine	Record daily precipitation	31.8 mm (1.3 in)	34 of 100 (Routine)
Hialeah	United States	Record daily precipitation	95.3 mm (3.8 in)	34 of 100 (Routine)

Counts by Type and Timescale

863 records

Records set or tied on 17 September 1989 by type: Highest daily maximum 140, Lowest daily maximum 110, Highest daily minimum 196, Lowest daily minimum 64, Heaviest daily rainfall 353.

Records on 17 September 1989 by type
Record type	Records
Highest daily maximum	140
Lowest daily maximum	110
Highest daily minimum	196
Lowest daily minimum	64
Heaviest daily rainfall	353
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 September 1989 by timescale: all-time 0, monthly 26, daily 837.

How Much Records Were Beaten By

690 broken records

Margins by which the 690 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 97.1. Ties are not counted.

Top 20 by Significance

17 September 1989

Top 20 records on 17 September 1989 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 September 1989	Clearlake 4 SE, US	monthly rain	71.4 mm (2.8 in)	33.6 mm (1.3 in)	29 years	61 of 100 (Major)
17 September 1989	Red Bluff Muni AP, US	daily rain	59.2 mm (2.3 in)	50.3 mm (2.0 in)	40 years	61 of 100 (Major)
17 September 1989	Stony Gorge Rsvr, US	monthly rain	51.3 mm (2.0 in)	18.0 mm (0.7 in)	29 years	60 of 100 (Major)
17 September 1989	Mina, US	daily rain	30.7 mm (1.2 in)	24.3 mm (1.0 in)	39 years	59 of 100 (Notable)
17 September 1989	Winters, US	daily rain	34.8 mm (1.4 in)	29.7 mm (1.2 in)	28 years	56 of 100 (Notable)
17 September 1989	Woodland 1 WNW, US	daily rain	41.7 mm (1.6 in)	37.4 mm (1.5 in)	28 years	56 of 100 (Notable)
17 September 1989	The Poplars, US	monthly rain	29.7 mm (1.2 in)	14.0 mm (0.6 in)	4 years	54 of 100 (Notable)
17 September 1989	Kherson, UA	daily rain	27.0 mm (1.1 in)	11.1 mm (0.4 in)	99 years	53 of 100 (Notable)
17 September 1989	N Fk Rs, US	daily rain	64.8 mm (2.6 in)	57.7 mm (2.3 in)	39 years	52 of 100 (Notable)
17 September 1989	Lanihau 68.2, US	daily rain	108.2 mm (4.3 in)	70.4 mm (2.8 in)	26 years	51 of 100 (Notable)
17 September 1989	Auburn, US	daily rain	36.3 mm (1.4 in)	28.9 mm (1.1 in)	43 years	50 of 100 (Notable)
17 September 1989	Tiger Creek Ph, US	daily rain	51.3 mm (2.0 in)	44.2 mm (1.7 in)	7 years	50 of 100 (Notable)
17 September 1989	Camp Pardee, US	daily rain	34.3 mm (1.4 in)	30.7 mm (1.2 in)	39 years	49 of 100 (Notable)
17 September 1989	Chico UNIV Farm, US	daily rain	49.8 mm (2.0 in)	38.6 mm (1.5 in)	3 years	48 of 100 (Notable)
17 September 1989	Hat Creek, US	daily rain	29.2 mm (1.1 in)	19.0 mm (0.7 in)	34 years	48 of 100 (Notable)
17 September 1989	Sonoma, US	monthly low max	16.1 C (61.0 F)	0.6 C (1.1 F)	96 years	48 of 100 (Notable)
17 September 1989	Woodfords, US	daily rain	27.7 mm (1.1 in)	23.1 mm (0.9 in)	39 years	48 of 100 (Notable)
17 September 1989	Ashland, US	daily rain	30.0 mm (1.2 in)	19.1 mm (0.8 in)	28 years	48 of 100 (Notable)
17 September 1989	Davis 2 WSW Exp Farm, US	daily rain	35.6 mm (1.4 in)	26.7 mm (1.1 in)	40 years	47 of 100 (Notable)
17 September 1989	Electra P H, US	daily rain	38.1 mm (1.5 in)	27.7 mm (1.1 in)	39 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

1796 to 1989

Records set or tied on this calendar date in each year from 1796 to 1989. 1989 had 863 records.

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

Records on 09-17 in each year
Year	Records
1796	1
1797	1
1805	1
1833	1
1834	1
1837	2
1845	1
1847	3
1848	1
1850	1
1851	2
1853	2
1854	2
1859	1
1862	1
1867	1
1870	1
1871	1
1872	1
1873	1
1874	1
1875	1
1877	1
1881	1
1882	2
1884	3
1885	3
1886	6
1888	2
1889	8
1891	1
1893	3
1894	1
1895	4
1896	9
1897	4
1898	7
1899	1
1900	4
1901	5
1902	5
1903	28
1904	2
1905	17
1906	10
1907	15
1908	13
1909	7
1910	38
1911	15
1912	17
1913	28
1914	38
1915	48
1916	40
1917	255
1918	41
1919	21
1920	40
1921	66
1922	47
1923	159
1924	80
1925	338
1926	154
1927	420
1928	78
1929	168
1930	147
1931	564
1932	425
1933	415
1934	246
1935	321
1936	219
1937	463
1938	363
1939	294
1940	326
1941	328
1942	581
1943	513
1944	403
1945	614
1946	620
1947	680
1948	630
1949	292
1950	412
1951	359
1952	263
1953	344
1954	449
1955	649
1956	437
1957	405
1958	806
1959	1,210
1960	385
1961	657
1962	432
1963	297
1964	559
1965	1,394
1966	523
1967	331
1968	691
1969	352
1970	412
1971	898
1972	556
1973	638
1974	491
1975	478
1976	636
1977	641
1978	764
1979	804
1980	794
1981	1,155
1982	606
1983	862
1984	1,006
1985	448
1986	1,314
1987	926
1988	982
1989	863
1990	650
1991	1,407
1992	686
1993	950
1994	986
1995	1,145
1996	1,342
1997	1,057
1998	1,137
1999	1,102
2000	1,318
2001	895
2002	1,025
2003	586
2004	872
2005	1,042
2006	1,344
2007	752
2008	886
2009	871
2010	907
2011	1,116
2012	597
2013	1,253
2014	571
2015	953
2016	707
2017	455
2018	899
2019	774
2020	651
2021	345
2022	313
2023	646
2024	954
2025	634
2026	968

Download the Data

Data for records on 1989-09-17: 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	636
20 to 40	44
40 to 60	8
60 to 80	1
80 to 100	1