Weather Records on 11 October 1986

961 weather records were set or tied worldwide on 11 October 1986. Highest significance: Audubon, US.

Key Facts for 11 October 1986

On 11 October 1986, 961 weather records were set or tied at long-record stations worldwide.
140 were record highs and 298 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 35 monthly and 924 daily.
Audubon set a monthly record daily precipitation of 87.4 mm (3.4 in) on 11 October 1986.
Across 165 earlier years (1793 to 2026) the same calendar date averaged 451 records.

Record Map

961 stations

961 station records on 11 October 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 October 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Audubon	United States	Record daily precipitation	87.4 mm (3.4 in)	71 of 100 (Major)
Talkeetna AP	United States	Record daily precipitation	91.2 mm (3.6 in)	66 of 100 (Major)
Harlan	United States	Record daily precipitation	94.0 mm (3.7 in)	63 of 100 (Major)
McKinley Park	United States	Record daily precipitation	31.0 mm (1.2 in)	58 of 100 (Notable)
Apalachicola AP	United States	Record daily precipitation	103.9 mm (4.1 in)	54 of 100 (Notable)
Damar	United States	Record daily precipitation	91.4 mm (3.6 in)	54 of 100 (Notable)
Kasilof 3 NW	United States	Record daily precipitation	46.2 mm (1.8 in)	54 of 100 (Notable)
Norton 9SSE	United States	Record daily precipitation	55.1 mm (2.2 in)	53 of 100 (Notable)
Harrison	United States	Record daily snowfall	15.2 cm (6.0 in)	53 of 100 (Notable)
Humboldt 3 W	United States	Record daily precipitation	58.4 mm (2.3 in)	50 of 100 (Notable)
Mullen 3S	United States	Record daily snowfall	7.6 cm (3.0 in)	50 of 100 (Notable)
Nord-Rana	Norway	Record daily precipitation	56.2 mm (2.2 in)	48 of 100 (Notable)
Burlington	United States	Record daily snowfall	7.6 cm (3.0 in)	47 of 100 (Notable)
Quinter	United States	Record daily precipitation	48.8 mm (1.9 in)	47 of 100 (Notable)
Sterling	United States	Record daily snowfall	7.9 cm (3.1 in)	46 of 100 (Notable)
Logan 1 WNW	United States	Record daily precipitation	61.0 mm (2.4 in)	46 of 100 (Notable)
Stockton 1 E	United States	Record daily precipitation	71.6 mm (2.8 in)	46 of 100 (Notable)
Winona	United States	Record daily precipitation	67.1 mm (2.6 in)	46 of 100 (Notable)
Mason City	United States	Record daily snowfall	5.1 cm (2.0 in)	46 of 100 (Notable)
Omaha Eppley Airfield	United States	Record daily precipitation	68.6 mm (2.7 in)	46 of 100 (Notable)
Kangaroo Hills Station	Australia	Record daily precipitation	26.0 mm (1.0 in)	45 of 100 (Notable)
Blanca 4 NW	United States	Record daily snowfall	7.6 cm (3.0 in)	45 of 100 (Notable)
Hay Springs	United States	Record daily snowfall	7.6 cm (3.0 in)	45 of 100 (Notable)
Western 2W	United States	Record daily precipitation	80.0 mm (3.1 in)	45 of 100 (Notable)
College Obsy	United States	Record daily precipitation	30.5 mm (1.2 in)	45 of 100 (Notable)
Omaha #1	United States	Record daily precipitation	63.8 mm (2.5 in)	45 of 100 (Notable)
El Cantil	Mexico	Record daily precipitation	162.8 mm (6.4 in)	44 of 100 (Notable)
Anselmo 2 WSW	United States	Record daily snowfall	15.2 cm (6.0 in)	44 of 100 (Notable)
Webster Dam	United States	Record daily precipitation	73.7 mm (2.9 in)	43 of 100 (Notable)
Holdrege	United States	Record daily precipitation	38.4 mm (1.5 in)	43 of 100 (Notable)
Staplehurst	United States	Record daily precipitation	76.2 mm (3.0 in)	43 of 100 (Notable)
Greenvale	Australia	Record daily precipitation	31.2 mm (1.2 in)	42 of 100 (Notable)
Sanalona II	Mexico	Record daily precipitation	224.3 mm (8.8 in)	42 of 100 (Notable)
Buena Vista 2S	United States	Record snow depth	10.2 cm (4.0 in)	42 of 100 (Notable)
Flagler 1S	United States	Record daily snowfall	20.3 cm (8.0 in)	42 of 100 (Notable)
Ft Lewis	United States	Record daily precipitation	40.9 mm (1.6 in)	42 of 100 (Notable)
Phillipsburg 1 SSE	United States	Record daily precipitation	52.1 mm (2.1 in)	42 of 100 (Notable)
Wakeeney	United States	Record daily precipitation	58.4 mm (2.3 in)	42 of 100 (Notable)
Holbrook	United States	Record daily precipitation	27.9 mm (1.1 in)	41 of 100 (Notable)
Mankato	United States	Record daily precipitation	94.0 mm (3.7 in)	41 of 100 (Notable)
Archer	United States	Record daily snowfall	5.8 cm (2.3 in)	41 of 100 (Notable)
Big Spring	United States	Record daily precipitation	49.0 mm (1.9 in)	41 of 100 (Notable)
Cordova AP	United States	Record daily precipitation	110.5 mm (4.4 in)	41 of 100 (Notable)
Bundaberg Post Office	Australia	Record daily precipitation	47.6 mm (1.9 in)	40 of 100 (Notable)
Drevja	Norway	Record daily precipitation	67.3 mm (2.6 in)	40 of 100 (Notable)
Mapleton No.2	United States	Record daily precipitation	50.8 mm (2.0 in)	40 of 100 (Notable)
Lenora Coop	United States	Record daily precipitation	53.3 mm (2.1 in)	40 of 100 (Notable)
Sandy Cape Lighthouse	Australia	Record daily precipitation	32.4 mm (1.3 in)	39 of 100 (Notable)
Elsinore	United States	Record high minimum temperature	16.1 C (61.0 F)	39 of 100 (Notable)
Chaco Canyon Natl Mon	United States	Record daily snowfall	5.1 cm (2.0 in)	39 of 100 (Notable)
Allison	United States	Record daily precipitation	48.0 mm (1.9 in)	38 of 100 (Notable)
Purdum	United States	Record daily snowfall	5.1 cm (2.0 in)	38 of 100 (Notable)
Wilsonville	United States	Record daily precipitation	43.2 mm (1.7 in)	38 of 100 (Notable)
Saluda	United States	Record daily precipitation	35.6 mm (1.4 in)	38 of 100 (Notable)
Friona	United States	Record daily precipitation	38.9 mm (1.5 in)	38 of 100 (Notable)
Breakwater	United States	Record daily precipitation	55.4 mm (2.2 in)	38 of 100 (Notable)
Matanuska Exp Farm	United States	Record high maximum temperature	19.4 C (66.9 F)	38 of 100 (Notable)
Rochester Intl AP	United States	Record daily precipitation	47.8 mm (1.9 in)	38 of 100 (Notable)
Bambaroo	Australia	Record daily precipitation	30.0 mm (1.2 in)	37 of 100 (Notable)
Magiscatzin (Dge)	Mexico	Record daily precipitation	85.3 mm (3.4 in)	37 of 100 (Notable)

Counts by Type and Timescale

961 records

Records set or tied on 11 October 1986 by type: Highest daily maximum 63, Lowest daily maximum 183, Highest daily minimum 77, Lowest daily minimum 115, Heaviest daily rainfall 400, Heaviest daily snowfall 71, Deepest snow cover 52.

Records on 11 October 1986 by type
Record type	Records
Highest daily maximum	63
Lowest daily maximum	183
Highest daily minimum	77
Lowest daily minimum	115
Heaviest daily rainfall	400
Heaviest daily snowfall	71
Deepest snow cover	52

Records on 11 October 1986 by timescale: all-time 2, monthly 35, daily 924.

How Much Records Were Beaten By

800 broken records

Margins by which the 800 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 178.0. Ties are not counted.

Top 20 by Significance

11 October 1986

Top 20 records on 11 October 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 October 1986	Audubon, US	monthly rain	87.4 mm (3.4 in)	25.2 mm (1.0 in)	92 years	71 of 100 (Major)
11 October 1986	Talkeetna AP, US	daily rain	91.2 mm (3.6 in)	53.1 mm (2.1 in)	67 years	66 of 100 (Major)
11 October 1986	Harlan, US	monthly rain	94.0 mm (3.7 in)	22.9 mm (0.9 in)	83 years	63 of 100 (Major)
11 October 1986	McKinley Park, US	monthly rain	31.0 mm (1.2 in)	11.9 mm (0.5 in)	11 years	58 of 100 (Notable)
11 October 1986	Apalachicola AP, US	daily rain	103.9 mm (4.1 in)	84.8 mm (3.3 in)	37 years	54 of 100 (Notable)
11 October 1986	Damar, US	monthly rain	91.4 mm (3.6 in)	34.2 mm (1.3 in)	23 years	54 of 100 (Notable)
11 October 1986	Kasilof 3 NW, US	daily rain	46.2 mm (1.8 in)	33.5 mm (1.3 in)	28 years	54 of 100 (Notable)
11 October 1986	Norton 9SSE, US	daily rain	55.1 mm (2.2 in)	29.7 mm (1.2 in)	56 years	53 of 100 (Notable)
11 October 1986	Harrison, US	daily snowfall	15.2 cm (6.0 in)	13.9 cm (5.5 in)	60 years	53 of 100 (Notable)
11 October 1986	Humboldt 3 W, US	daily rain	58.4 mm (2.3 in)	19.5 mm (0.8 in)	73 years	50 of 100 (Notable)
11 October 1986	Mullen 3S, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	89 years	50 of 100 (Notable)
11 October 1986	Nord-Rana, NO	daily rain	56.2 mm (2.2 in)	14.4 mm (0.6 in)	85 years	48 of 100 (Notable)
11 October 1986	Burlington, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	80 years	47 of 100 (Notable)
11 October 1986	Quinter, US	daily rain	48.8 mm (1.9 in)	24.7 mm (1.0 in)	56 years	47 of 100 (Notable)
11 October 1986	Sterling, US	daily snowfall	7.9 cm (3.1 in)	7.9 cm (3.1 in)	76 years	46 of 100 (Notable)
11 October 1986	Logan 1 WNW, US	daily rain	61.0 mm (2.4 in)	16.5 mm (0.6 in)	73 years	46 of 100 (Notable)
11 October 1986	Stockton 1 E, US	daily rain	71.6 mm (2.8 in)	41.9 mm (1.6 in)	12 years	46 of 100 (Notable)
11 October 1986	Winona, US	monthly rain	67.1 mm (2.6 in)	1.3 mm (0.05 in)	89 years	46 of 100 (Notable)
11 October 1986	Mason City, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	90 years	46 of 100 (Notable)
11 October 1986	Omaha Eppley Airfield, US	daily rain	68.6 mm (2.7 in)	53.9 mm (2.1 in)	12 years	46 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 961 records.

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

Records on 10-11 in each year
Year	Records
1793	1
1801	1
1802	2
1803	1
1805	1
1807	1
1811	1
1814	2
1839	1
1845	1
1849	1
1851	1
1852	1
1854	1
1859	1
1860	4
1861	1
1864	2
1867	2
1869	1
1870	1
1872	2
1873	2
1875	1
1876	4
1877	3
1879	2
1880	2
1884	2
1885	5
1887	4
1888	2
1889	3
1890	1
1891	2
1892	2
1896	2
1897	4
1898	4
1900	1
1901	8
1902	14
1903	10
1904	20
1905	17
1906	52
1907	10
1908	11
1909	17
1910	31
1911	14
1912	21
1913	48
1914	40
1915	14
1916	25
1917	48
1918	32
1919	76
1920	140
1921	92
1922	35
1923	231
1924	149
1925	196
1926	137
1927	176
1928	713
1929	259
1930	656
1931	396
1932	235
1933	200
1934	862
1935	245
1936	243
1937	242
1938	438
1939	249
1940	201
1941	190
1942	537
1943	414
1944	247
1945	284
1946	770
1947	405
1948	736
1949	835
1950	450
1951	538
1952	472
1953	408
1954	672
1955	434
1956	894
1957	258
1958	795
1959	1,027
1960	333
1961	610
1962	857
1963	570
1964	927
1965	202
1966	279
1967	643
1968	312
1969	1,032
1970	859
1971	521
1972	708
1973	1,325
1974	356
1975	559
1976	565
1977	655
1978	426
1979	1,260
1980	478
1981	776
1982	1,141
1983	542
1984	552
1985	977
1986	961
1987	1,603
1988	621
1989	571
1990	1,617
1991	1,055
1992	527
1993	883
1994	726
1995	975
1996	842
1997	1,809
1998	750
1999	996
2000	1,782
2001	962
2002	1,000
2003	1,191
2004	593
2005	1,044
2006	840
2007	610
2008	1,369
2009	2,594
2010	964
2011	1,176
2012	696
2013	666
2014	620
2015	1,032
2016	378
2017	1,101
2018	1,517
2019	1,760
2020	680
2021	873
2022	244
2023	858
2024	842
2025	711
2026	897

Download the Data

Data for records on 1986-10-11: 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 25	655
25 to 50	95
50 to 75	27
75 to 100	11
100 to 125	7
125 to 150	1
150 to 175	3
175 to 200	1