Weather Records on 10 September 1986

960 weather records were set or tied worldwide on 10 September 1986. Highest significance: Manistee 3SE, US.

Key Facts for 10 September 1986

On 10 September 1986, 960 weather records were set or tied at long-record stations worldwide.
160 were record highs and 517 were record lows, counting maximum and minimum temperature.
By timescale, 8 were all-time records, 25 monthly and 927 daily.
Manistee 3SE set a daily record precipitation of 72.4 mm (2.9 in) on 10 September 1986.
Across 166 earlier years (1812 to 2026) the same calendar date averaged 425 records.

Record Map

960 stations

960 station records on 10 September 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 10 September 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Manistee 3SE	United States	Record daily precipitation	72.4 mm (2.9 in)	76 of 100 (Major)
Grand Haven Fire Dept	United States	Record daily precipitation	88.9 mm (3.5 in)	72 of 100 (Major)
Harbor Beach 1 SSE	United States	Record daily precipitation	153.4 mm (6.0 in)	69 of 100 (Major)
Baraboo Wwtp	United States	Record daily precipitation	76.2 mm (3.0 in)	68 of 100 (Major)
Manitowoc	United States	Record daily precipitation	78.7 mm (3.1 in)	67 of 100 (Major)
Ionia 2SSW	United States	Record daily precipitation	120.9 mm (4.8 in)	65 of 100 (Major)
Escanaba	United States	Record daily precipitation	59.9 mm (2.4 in)	65 of 100 (Major)
Saginaw Mbs Intl AP	United States	Record daily precipitation	140.0 mm (5.5 in)	60 of 100 (Major)
Fond du Lac Wwtp	United States	Record daily precipitation	173.5 mm (6.8 in)	57 of 100 (Notable)
Ellsworth	United States	Record daily precipitation	86.6 mm (3.4 in)	55 of 100 (Notable)
Caro Wwtp	United States	Record daily precipitation	103.6 mm (4.1 in)	55 of 100 (Notable)
Big Rapids Wtp	United States	Record daily precipitation	138.2 mm (5.4 in)	53 of 100 (Notable)
Winona	United States	Record daily precipitation	67.8 mm (2.7 in)	51 of 100 (Notable)
Buffalo	United States	Record daily precipitation	34.5 mm (1.4 in)	51 of 100 (Notable)
Hartford Wwtp	United States	Record daily precipitation	132.1 mm (5.2 in)	50 of 100 (Notable)
Ridgeland 1NNE	United States	Record daily precipitation	75.2 mm (3.0 in)	50 of 100 (Notable)
Clearmont 5 SW	United States	Record daily precipitation	28.4 mm (1.1 in)	50 of 100 (Notable)
Waupaca	United States	Record daily precipitation	52.6 mm (2.1 in)	49 of 100 (Notable)
Ft Meade	United States	Record daily precipitation	25.9 mm (1.0 in)	47 of 100 (Notable)
Echeta 2 NW	United States	Record daily precipitation	41.1 mm (1.6 in)	47 of 100 (Notable)
Fayette 4 SW	United States	Record daily precipitation	54.6 mm (2.1 in)	46 of 100 (Notable)
Brillion	United States	Record daily precipitation	91.4 mm (3.6 in)	46 of 100 (Notable)
Tescott	United States	Record daily precipitation	96.5 mm (3.8 in)	45 of 100 (Notable)
New London	United States	Record daily precipitation	50.0 mm (2.0 in)	45 of 100 (Notable)
Cerro	United States	Record daily precipitation	28.2 mm (1.1 in)	44 of 100 (Notable)
Saltair Salt Plt	United States	Record daily precipitation	52.1 mm (2.1 in)	44 of 100 (Notable)
Appleton	United States	Record daily precipitation	48.8 mm (1.9 in)	44 of 100 (Notable)
Ouray	United States	Record daily precipitation	28.2 mm (1.1 in)	43 of 100 (Notable)
Greenville 2 NNE	United States	Record daily precipitation	87.1 mm (3.4 in)	43 of 100 (Notable)
Clintonville	United States	Record daily precipitation	60.5 mm (2.4 in)	43 of 100 (Notable)
Shawano 2SSW	United States	Record daily precipitation	43.2 mm (1.7 in)	43 of 100 (Notable)
Waukesha Wwtp	United States	Record daily precipitation	52.3 mm (2.1 in)	43 of 100 (Notable)
Tremonton	United States	Record low maximum temperature	13.3 C (55.9 F)	42 of 100 (Notable)
Kenosha Wwtp	United States	Record daily precipitation	56.4 mm (2.2 in)	42 of 100 (Notable)
Gorlitz	Germany	Record low minimum temperature	2.3 C (36.1 F)	41 of 100 (Notable)
Independence	United States	Record daily precipitation	52.1 mm (2.1 in)	41 of 100 (Notable)
Traverse Cy Cherry Capital AP	United States	Record daily precipitation	39.9 mm (1.6 in)	41 of 100 (Notable)
Atorp	Sweden	Record daily precipitation	32.2 mm (1.3 in)	40 of 100 (Notable)
Cedaredge	United States	Record low maximum temperature	18.3 C (64.9 F)	40 of 100 (Notable)
Waukegan	United States	Record daily precipitation	63.5 mm (2.5 in)	40 of 100 (Notable)
Chilton	United States	Record daily precipitation	58.4 mm (2.3 in)	40 of 100 (Notable)
Hancock Exp Farm	United States	Record daily precipitation	69.6 mm (2.7 in)	40 of 100 (Notable)
Jump Rvr 3E	United States	Record daily precipitation	67.1 mm (2.6 in)	40 of 100 (Notable)
Lake Mills Wwtp	United States	Record daily precipitation	57.7 mm (2.3 in)	40 of 100 (Notable)
Weyerhaeuser 1N	United States	Record daily precipitation	58.4 mm (2.3 in)	40 of 100 (Notable)
Los Limones (Cfe)	Mexico	Record daily precipitation	94.0 mm (3.7 in)	39 of 100 (Notable)
Manassa	United States	Record low maximum temperature	15.0 C (59.0 F)	39 of 100 (Notable)
Saint Johns	United States	Record daily precipitation	97.0 mm (3.8 in)	39 of 100 (Notable)
St Peter	United States	Record daily precipitation	73.7 mm (2.9 in)	39 of 100 (Notable)
Pauls Valley 4 WSW	United States	Record daily precipitation	45.7 mm (1.8 in)	39 of 100 (Notable)
Mt Mary College	United States	Record daily precipitation	57.2 mm (2.3 in)	39 of 100 (Notable)
Milwaukee Mitchell AP	United States	Record daily precipitation	44.2 mm (1.7 in)	39 of 100 (Notable)
Chemnitz	Germany	Record low minimum temperature	3.8 C (38.8 F)	38 of 100 (Notable)
Paola	United States	Record high minimum temperature	21.7 C (71.1 F)	38 of 100 (Notable)
Evart	United States	Record daily precipitation	54.6 mm (2.1 in)	38 of 100 (Notable)
Lake City Exp Farm	United States	Record daily precipitation	47.2 mm (1.9 in)	38 of 100 (Notable)
Beaver	United States	Record daily precipitation	56.9 mm (2.2 in)	38 of 100 (Notable)
Koosharem	United States	Record low maximum temperature	13.9 C (57.0 F)	38 of 100 (Notable)
Oconomowoc Wwtp	United States	Record daily precipitation	80.8 mm (3.2 in)	38 of 100 (Notable)
Halle	Germany	Record low minimum temperature	2.0 C (35.6 F)	37 of 100 (Notable)

Counts by Type and Timescale

960 records

Records set or tied on 10 September 1986 by type: Highest daily maximum 67, Lowest daily maximum 264, Highest daily minimum 93, Lowest daily minimum 253, Heaviest daily rainfall 278, Heaviest daily snowfall 1, Deepest snow cover 4.

Records on 10 September 1986 by type
Record type	Records
Highest daily maximum	67
Lowest daily maximum	264
Highest daily minimum	93
Lowest daily minimum	253
Heaviest daily rainfall	278
Heaviest daily snowfall	1
Deepest snow cover	4

Records on 10 September 1986 by timescale: all-time 8, monthly 25, daily 927.

How Much Records Were Beaten By

775 broken records

Margins by which the 775 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 70.6. Ties are not counted.

Top 20 by Significance

10 September 1986

Top 20 records on 10 September 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 September 1986	Manistee 3SE, US	daily rain	72.4 mm (2.9 in)	40.4 mm (1.6 in)	96 years	76 of 100 (Major)
10 September 1986	Grand Haven Fire Dept, US	daily rain	88.9 mm (3.5 in)	54.6 mm (2.1 in)	83 years	72 of 100 (Major)
10 September 1986	Harbor Beach 1 SSE, US	all-time rain	153.4 mm (6.0 in)	47.7 mm (1.9 in)	5 years	69 of 100 (Major)
10 September 1986	Baraboo Wwtp, US	daily rain	76.2 mm (3.0 in)	50.0 mm (2.0 in)	67 years	68 of 100 (Major)
10 September 1986	Manitowoc, US	daily rain	78.7 mm (3.1 in)	43.9 mm (1.7 in)	71 years	67 of 100 (Major)
10 September 1986	Ionia 2SSW, US	monthly rain	120.9 mm (4.8 in)	44.2 mm (1.7 in)	21 years	65 of 100 (Major)
10 September 1986	Escanaba, US	daily rain	59.9 mm (2.4 in)	24.3 mm (1.0 in)	101 years	65 of 100 (Major)
10 September 1986	Saginaw Mbs Intl AP, US	all-time rain	140.0 mm (5.5 in)	23.7 mm (0.9 in)	31 years	60 of 100 (Major)
10 September 1986	Fond du Lac Wwtp, US	all-time rain	173.5 mm (6.8 in)	27.7 mm (1.1 in)	8 years	57 of 100 (Notable)
10 September 1986	Ellsworth, US	daily rain	86.6 mm (3.4 in)	49.8 mm (2.0 in)	60 years	55 of 100 (Notable)
10 September 1986	Caro Wwtp, US	all-time rain	103.6 mm (4.1 in)	22.3 mm (0.9 in)	31 years	55 of 100 (Notable)
10 September 1986	Big Rapids Wtp, US	all-time rain	138.2 mm (5.4 in)	22.6 mm (0.9 in)	11 years	53 of 100 (Notable)
10 September 1986	Winona, US	daily rain	67.8 mm (2.7 in)	35.3 mm (1.4 in)	48 years	51 of 100 (Notable)
10 September 1986	Buffalo, US	daily rain	34.5 mm (1.4 in)	18.8 mm (0.7 in)	85 years	51 of 100 (Notable)
10 September 1986	Hartford Wwtp, US	all-time rain	132.1 mm (5.2 in)	31.5 mm (1.2 in)	3 years	50 of 100 (Notable)
10 September 1986	Ridgeland 1NNE, US	daily rain	75.2 mm (3.0 in)	57.2 mm (2.3 in)	24 years	50 of 100 (Notable)
10 September 1986	Clearmont 5 SW, US	daily rain	28.4 mm (1.1 in)	20.3 mm (0.8 in)	36 years	50 of 100 (Notable)
10 September 1986	Waupaca, US	daily rain	52.6 mm (2.1 in)	17.3 mm (0.7 in)	89 years	49 of 100 (Notable)
10 September 1986	Ft Meade, US	daily rain	25.9 mm (1.0 in)	13.2 mm (0.5 in)	73 years	47 of 100 (Notable)
10 September 1986	Echeta 2 NW, US	daily rain	41.1 mm (1.6 in)	15.7 mm (0.6 in)	73 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

1812 to 1986

Records set or tied on this calendar date in each year from 1812 to 1986. 1986 had 960 records.

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

Records on 09-10 in each year
Year	Records
1812	1
1813	1
1814	2
1818	1
1838	2
1841	1
1846	1
1847	1
1848	1
1850	2
1854	3
1857	1
1858	1
1865	5
1868	1
1869	2
1871	1
1874	2
1875	1
1876	2
1878	1
1879	2
1880	3
1881	2
1883	3
1884	4
1885	2
1886	1
1887	1
1888	2
1889	3
1890	1
1891	3
1892	3
1893	2
1894	4
1895	3
1896	1
1897	7
1898	4
1899	10
1901	1
1902	10
1903	13
1904	5
1905	7
1906	23
1907	15
1908	15
1909	25
1910	26
1911	8
1912	62
1913	24
1914	43
1915	53
1916	15
1917	79
1918	33
1919	42
1920	132
1921	207
1922	78
1923	38
1924	335
1925	197
1926	68
1927	262
1928	109
1929	282
1930	161
1931	724
1932	258
1933	333
1934	247
1935	478
1936	336
1937	376
1938	369
1939	386
1940	410
1941	389
1942	271
1943	352
1944	470
1945	334
1946	295
1947	534
1948	432
1949	793
1950	394
1951	344
1952	476
1953	250
1954	271
1955	376
1956	834
1957	332
1958	435
1959	670
1960	376
1961	459
1962	798
1963	384
1964	710
1965	355
1966	330
1967	512
1968	846
1969	635
1970	582
1971	400
1972	477
1973	559
1974	522
1975	528
1976	1,041
1977	391
1978	883
1979	563
1980	716
1981	629
1982	687
1983	1,329
1984	824
1985	1,140
1986	960
1987	574
1988	783
1989	1,098
1990	782
1991	827
1992	745
1993	936
1994	816
1995	643
1996	1,003
1997	829
1998	1,832
1999	1,068
2000	1,088
2001	1,129
2002	1,298
2003	1,149
2004	652
2005	1,173
2006	1,110
2007	866
2008	975
2009	636
2010	1,273
2011	1,235
2012	793
2013	1,198
2014	894
2015	789
2016	1,085
2017	674
2018	1,030
2019	816
2020	2,105
2021	1,311
2022	633
2023	1,114
2024	933
2025	583
2026	832

Download the Data

Data for records on 1986-09-10: 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 2026-10-18. Last revised 18 October 2026 (2026-10-18).

Margin	Records
0 to 10	661
10 to 20	63
20 to 30	28
30 to 40	10
40 to 50	8
50 to 60	3
60 to 70	1
70 to 80	1