Weather Records on 23 September 1986

740 weather records were set or tied worldwide on 23 September 1986. Highest significance: Wellpinit, US.

Key Facts for 23 September 1986

On 23 September 1986, 740 weather records were set or tied at long-record stations worldwide.
256 were record highs and 241 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 36 monthly and 704 daily.
Wellpinit set a daily record precipitation of 33.8 mm (1.3 in) on 23 September 1986.
Across 169 earlier years (1793 to 2026) the same calendar date averaged 430 records.

Record Map

740 stations

740 station records on 23 September 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 23 September 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Wellpinit	United States	Record daily precipitation	33.8 mm (1.3 in)	59 of 100 (Notable)
Gijon la Merced	Spain	Record daily precipitation	79.2 mm (3.1 in)	56 of 100 (Notable)
Mt Carroll	United States	Record daily precipitation	78.7 mm (3.1 in)	56 of 100 (Notable)
Bordeaux-Merignac	France	Record daily precipitation	44.4 mm (1.7 in)	55 of 100 (Notable)
McNary 2N	United States	Record daily precipitation	54.6 mm (2.1 in)	55 of 100 (Notable)
Presa la Angostura	Mexico	Record daily precipitation	39.4 mm (1.6 in)	54 of 100 (Notable)
Parker	United States	Record low maximum temperature	21.1 C (70.0 F)	53 of 100 (Notable)
Brockport	United States	Record daily precipitation	42.4 mm (1.7 in)	53 of 100 (Notable)
Appleton City	United States	Record daily precipitation	130.0 mm (5.1 in)	52 of 100 (Notable)
Auburn	United States	Record daily precipitation	52.8 mm (2.1 in)	52 of 100 (Notable)
Horton	United States	Record daily precipitation	77.0 mm (3.0 in)	51 of 100 (Notable)
Seligman	United States	Record low maximum temperature	13.9 C (57.0 F)	50 of 100 (Notable)
Sweet Springs	United States	Record daily precipitation	124.7 mm (4.9 in)	50 of 100 (Notable)
Union Grove Wwtp	United States	Record daily precipitation	53.8 mm (2.1 in)	50 of 100 (Notable)
Hiawatha 1 S	United States	Record daily precipitation	109.0 mm (4.3 in)	47 of 100 (Notable)
Clearwater	United States	Record daily precipitation	82.8 mm (3.3 in)	47 of 100 (Notable)
Clinton	United States	Record daily precipitation	160.0 mm (6.3 in)	46 of 100 (Notable)
Bouse	United States	Record low maximum temperature	20.0 C (68.0 F)	45 of 100 (Notable)
Ganado	United States	Record daily precipitation	43.2 mm (1.7 in)	45 of 100 (Notable)
Prescott	United States	Record low maximum temperature	15.6 C (60.1 F)	45 of 100 (Notable)
Half Moon Bay	United States	Record daily precipitation	30.5 mm (1.2 in)	45 of 100 (Notable)
Sahuaripa	Mexico	Record daily precipitation	59.9 mm (2.4 in)	43 of 100 (Notable)
Albion	United States	Record daily precipitation	53.6 mm (2.1 in)	42 of 100 (Notable)
Reston	United States	Record daily precipitation	38.1 mm (1.5 in)	42 of 100 (Notable)
Ash Fork 6 N	United States	Record low maximum temperature	14.4 C (57.9 F)	41 of 100 (Notable)
Holcombe	United States	Record daily precipitation	79.8 mm (3.1 in)	41 of 100 (Notable)
Ketchikan AP	United States	Record daily precipitation	138.9 mm (5.5 in)	41 of 100 (Notable)
Keokuk L&D 19	United States	Record daily precipitation	25.4 mm (1.0 in)	40 of 100 (Notable)
Baldwinsville	United States	Record daily precipitation	27.4 mm (1.1 in)	40 of 100 (Notable)
Levelland	United States	Record daily precipitation	70.4 mm (2.8 in)	40 of 100 (Notable)
Manubie (Bos)	South Africa	Record daily precipitation	75.0 mm (3.0 in)	39 of 100 (Notable)
Atchison	United States	Record daily precipitation	97.3 mm (3.8 in)	39 of 100 (Notable)
Moberly	United States	Record daily precipitation	74.4 mm (2.9 in)	39 of 100 (Notable)
Kansas City Dwtn AP	United States	Record daily precipitation	60.2 mm (2.4 in)	39 of 100 (Notable)
Lubbock	United States	Record daily precipitation	65.0 mm (2.6 in)	39 of 100 (Notable)
Williamston 3NE	United States	Record daily precipitation	28.7 mm (1.1 in)	38 of 100 (Notable)
Cooperstown	United States	Record daily precipitation	36.3 mm (1.4 in)	38 of 100 (Notable)
Palmerville	Australia	Record high maximum temperature	38.5 C (101.3 F)	37 of 100 (Notable)
Steffenville	United States	Record daily precipitation	58.4 mm (2.3 in)	37 of 100 (Notable)
Defiance	United States	Record high minimum temperature	18.9 C (66.0 F)	37 of 100 (Notable)
Vanersborg	Sweden	Record low minimum temperature	-1.6 C (29.1 F)	36 of 100 (Notable)
Arcadia	United States	Record daily precipitation	45.7 mm (1.8 in)	36 of 100 (Notable)
Dearborn	United States	Record daily precipitation	46.7 mm (1.8 in)	36 of 100 (Notable)
Owosso Wwtp	United States	Record daily precipitation	53.3 mm (2.1 in)	36 of 100 (Notable)
Whidbey Island NAS	United States	Record daily precipitation	35.8 mm (1.4 in)	36 of 100 (Notable)
Litang	China	Record daily precipitation	27.0 mm (1.1 in)	35 of 100 (Notable)
Corning	United States	Record daily precipitation	68.8 mm (2.7 in)	35 of 100 (Notable)
Osceola	United States	Record daily precipitation	120.4 mm (4.7 in)	35 of 100 (Notable)
Newport	United States	Record daily precipitation	28.4 mm (1.1 in)	35 of 100 (Notable)
Wickenburg	United States	Record low maximum temperature	22.8 C (73.0 F)	34 of 100 (Routine)
Ft Lewis	United States	Record low maximum temperature	12.8 C (55.0 F)	34 of 100 (Routine)
Antioch	United States	Record daily precipitation	96.8 mm (3.8 in)	34 of 100 (Routine)
Mt Morris 2W	United States	Record daily precipitation	39.4 mm (1.6 in)	34 of 100 (Routine)
Becanchen	Mexico	Record low minimum temperature	17.8 C (64.0 F)	33 of 100 (Routine)
Dyer 5S	United States	Record low maximum temperature	16.1 C (61.0 F)	33 of 100 (Routine)
Cherry Valley 2 NNE	United States	Record daily precipitation	53.3 mm (2.1 in)	33 of 100 (Routine)
Alpine	United States	Record daily precipitation	66.3 mm (2.6 in)	33 of 100 (Routine)
Marathon	United States	Record daily precipitation	39.9 mm (1.6 in)	33 of 100 (Routine)
Panhandle	United States	Record daily precipitation	32.3 mm (1.3 in)	33 of 100 (Routine)
Kotzebue AP	United States	Record daily snowfall	5.1 cm (2.0 in)	33 of 100 (Routine)

Counts by Type and Timescale

740 records

Records set or tied on 23 September 1986 by type: Highest daily maximum 100, Lowest daily maximum 131, Highest daily minimum 156, Lowest daily minimum 110, Heaviest daily rainfall 239, Heaviest daily snowfall 3, Deepest snow cover 1.

Records on 23 September 1986 by type
Record type	Records
Highest daily maximum	100
Lowest daily maximum	131
Highest daily minimum	156
Lowest daily minimum	110
Heaviest daily rainfall	239
Heaviest daily snowfall	3
Deepest snow cover	1

Records on 23 September 1986 by timescale: all-time 0, monthly 36, daily 704.

How Much Records Were Beaten By

570 broken records

Margins by which the 570 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 89.2. Ties are not counted.

Top 20 by Significance

23 September 1986

Top 20 records on 23 September 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 September 1986	Wellpinit, US	daily rain	33.8 mm (1.3 in)	25.2 mm (1.0 in)	52 years	59 of 100 (Notable)
23 September 1986	Gijon la Merced, ES	daily rain	79.2 mm (3.1 in)	53.7 mm (2.1 in)	43 years	56 of 100 (Notable)
23 September 1986	Mt Carroll, US	daily rain	78.7 mm (3.1 in)	33.0 mm (1.3 in)	84 years	56 of 100 (Notable)
23 September 1986	Bordeaux-Merignac, FR	daily rain	44.4 mm (1.7 in)	22.7 mm (0.9 in)	60 years	55 of 100 (Notable)
23 September 1986	McNary 2N, US	daily rain	54.6 mm (2.1 in)	32.0 mm (1.3 in)	52 years	55 of 100 (Notable)
23 September 1986	Presa la Angostura, MX	daily rain	39.4 mm (1.6 in)	37.6 mm (1.5 in)	32 years	54 of 100 (Notable)
23 September 1986	Parker, US	monthly low max	21.1 C (70.0 F)	3.9 C (7.0 F)	80 years	53 of 100 (Notable)
23 September 1986	Brockport, US	daily rain	42.4 mm (1.7 in)	21.1 mm (0.8 in)	76 years	53 of 100 (Notable)
23 September 1986	Appleton City, US	daily rain	130.0 mm (5.1 in)	58.9 mm (2.3 in)	31 years	52 of 100 (Notable)
23 September 1986	Auburn, US	daily rain	52.8 mm (2.1 in)	19.8 mm (0.8 in)	76 years	52 of 100 (Notable)
23 September 1986	Horton, US	daily rain	77.0 mm (3.0 in)	29.5 mm (1.2 in)	84 years	51 of 100 (Notable)
23 September 1986	Seligman, US	daily low max	13.9 C (57.0 F)	8.3 C (14.9 F)	68 years	50 of 100 (Notable)
23 September 1986	Sweet Springs, US	daily rain	124.7 mm (4.9 in)	72.1 mm (2.8 in)	27 years	50 of 100 (Notable)
23 September 1986	Union Grove Wwtp, US	daily rain	53.8 mm (2.1 in)	41.4 mm (1.6 in)	40 years	50 of 100 (Notable)
23 September 1986	Hiawatha 1 S, US	daily rain	109.0 mm (4.3 in)	89.2 mm (3.5 in)	12 years	47 of 100 (Notable)
23 September 1986	Clearwater, US	daily rain	82.8 mm (3.3 in)	24.1 mm (0.9 in)	83 years	47 of 100 (Notable)
23 September 1986	Clinton, US	monthly rain	160.0 mm (6.3 in)	44.9 mm (1.8 in)	16 years	46 of 100 (Notable)
23 September 1986	Bouse, US	monthly low max	20.0 C (68.0 F)	5.6 C (10.1 F)	51 years	45 of 100 (Notable)
23 September 1986	Ganado, US	daily rain	43.2 mm (1.7 in)	23.1 mm (0.9 in)	32 years	45 of 100 (Notable)
23 September 1986	Prescott, US	daily low max	15.6 C (60.1 F)	4.4 C (7.9 F)	85 years	45 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

1793 to 1986

Records set or tied on this calendar date in each year from 1793 to 1986. 1986 had 740 records.

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

Records on 09-23 in each year
Year	Records
1793	1
1796	1
1799	1
1804	1
1832	1
1835	1
1838	1
1842	3
1843	1
1845	2
1848	1
1849	1
1850	1
1851	2
1854	3
1855	1
1859	2
1864	1
1865	1
1866	1
1868	1
1871	1
1872	1
1874	1
1875	1
1876	1
1877	1
1881	4
1882	2
1885	1
1886	1
1887	1
1888	1
1889	3
1890	2
1891	1
1892	2
1893	4
1895	9
1896	5
1897	1
1898	2
1899	4
1900	4
1901	2
1902	6
1903	7
1904	19
1905	6
1906	6
1907	19
1908	19
1909	15
1910	8
1911	11
1912	15
1913	22
1914	29
1915	25
1916	324
1917	56
1918	34
1919	40
1920	44
1921	47
1922	34
1923	74
1924	194
1925	223
1926	459
1927	247
1928	382
1929	198
1930	472
1931	600
1932	383
1933	281
1934	361
1935	239
1936	377
1937	557
1938	389
1939	279
1940	374
1941	490
1942	557
1943	322
1944	381
1945	652
1946	623
1947	803
1948	259
1949	496
1950	267
1951	462
1952	432
1953	271
1954	324
1955	852
1956	299
1957	539
1958	641
1959	307
1960	470
1961	670
1962	344
1963	568
1964	322
1965	783
1966	528
1967	341
1968	481
1969	450
1970	1,457
1971	578
1972	461
1973	674
1974	1,543
1975	1,038
1976	463
1977	616
1978	500
1979	586
1980	1,037
1981	717
1982	775
1983	1,744
1984	1,121
1985	924
1986	740
1987	1,077
1988	653
1989	1,376
1990	702
1991	519
1992	976
1993	983
1994	1,140
1995	1,868
1996	809
1997	1,060
1998	1,326
1999	1,207
2000	2,026
2001	790
2002	930
2003	1,243
2004	986
2005	1,207
2006	1,509
2007	1,153
2008	835
2009	1,201
2010	1,360
2011	666
2012	785
2013	573
2014	595
2015	587
2016	774
2017	1,371
2018	693
2019	565
2020	618
2021	602
2022	551
2023	812
2024	499
2025	449
2026	384

Download the Data

Data for records on 1986-09-23: 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	520
20 to 40	34
40 to 60	14
60 to 80	1
80 to 100	1