Weather Records on 12 October 1986

1,510 weather records were set or tied worldwide on 12 October 1986. Highest significance: Estancia 4N, US.

Key Facts for 12 October 1986

On 12 October 1986, 1,510 weather records were set or tied at long-record stations worldwide.
165 were record highs and 841 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 52 monthly and 1,458 daily.
Estancia 4N set a daily record snowfall of 20.3 cm (8.0 in) on 12 October 1986.
Across 163 earlier years (1805 to 2026) the same calendar date averaged 446 records.

Record Map

1,510 stations

1,510 station records on 12 October 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 October 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Estancia 4N	United States	Record daily snowfall	20.3 cm (8.0 in)	72 of 100 (Major)
Osage	United States	Record daily precipitation	60.5 mm (2.4 in)	63 of 100 (Major)
Cedaredge	United States	Record daily snowfall	30.5 cm (12.0 in)	62 of 100 (Major)
Dolores	United States	Record daily snowfall	15.2 cm (6.0 in)	62 of 100 (Major)
Jefferson	United States	Record daily precipitation	52.1 mm (2.1 in)	60 of 100 (Major)
Tanhoj	Russia	Record daily precipitation	42.9 mm (1.7 in)	59 of 100 (Notable)
Paonia 1SW	United States	Record daily snowfall	10.2 cm (4.0 in)	56 of 100 (Notable)
Centennial 1NE	United States	Record low minimum temperature	-18.9 C (-2.0 F)	54 of 100 (Notable)
Perry	United States	Record daily precipitation	48.8 mm (1.9 in)	53 of 100 (Notable)
Beaver Is	United States	Record daily precipitation	35.6 mm (1.4 in)	53 of 100 (Notable)
El Rito	United States	Record daily snowfall	30.5 cm (12.0 in)	53 of 100 (Notable)
Greer	United States	Record daily snowfall	17.8 cm (7.0 in)	51 of 100 (Notable)
Durango	United States	Record daily snowfall	7.6 cm (3.0 in)	51 of 100 (Notable)
Forest City 2 NNE	United States	Record daily precipitation	41.1 mm (1.6 in)	51 of 100 (Notable)
Waterloo	United States	Record daily precipitation	71.1 mm (2.8 in)	51 of 100 (Notable)
Childs	United States	Record daily precipitation	45.2 mm (1.8 in)	50 of 100 (Notable)
Webster City	United States	Record daily precipitation	48.3 mm (1.9 in)	50 of 100 (Notable)
Grand Meadow	United States	Record daily precipitation	50.8 mm (2.0 in)	50 of 100 (Notable)
Saigo	Japan	Record daily precipitation	76.5 mm (3.0 in)	49 of 100 (Notable)
Tacoma	United States	Record snow depth	12.7 cm (5.0 in)	49 of 100 (Notable)
Albert Lea 3SE	United States	Record daily precipitation	39.1 mm (1.5 in)	49 of 100 (Notable)
Elgin 2SSW	United States	Record daily precipitation	47.0 mm (1.9 in)	49 of 100 (Notable)
Wells	United States	Record daily precipitation	43.2 mm (1.7 in)	49 of 100 (Notable)
Laguna	United States	Record daily snowfall	8.9 cm (3.5 in)	49 of 100 (Notable)
Austin-Camp Mabry	United States	Record daily precipitation	92.2 mm (3.6 in)	49 of 100 (Notable)
Tacoma	United States	Record daily snowfall	12.7 cm (5.0 in)	48 of 100 (Notable)
Iowa Falls	United States	Record daily precipitation	58.4 mm (2.3 in)	48 of 100 (Notable)
El Rito	United States	Record snow depth	30.5 cm (12.0 in)	48 of 100 (Notable)
Chama	United States	Record snow depth	35.6 cm (14.0 in)	47 of 100 (Notable)
Ft Lewis	United States	Record daily snowfall	10.2 cm (4.0 in)	46 of 100 (Notable)
Norcatur 3WSW	United States	Record daily precipitation	47.5 mm (1.9 in)	46 of 100 (Notable)
Spring Grove	United States	Record daily precipitation	46.0 mm (1.8 in)	46 of 100 (Notable)
Zumbrota	United States	Record daily precipitation	49.3 mm (1.9 in)	46 of 100 (Notable)
Prentice #2	United States	Record daily precipitation	49.5 mm (1.9 in)	46 of 100 (Notable)
Collbran	United States	Record daily snowfall	6.4 cm (2.5 in)	45 of 100 (Notable)
Mansfield 4 NW	United States	Record daily precipitation	74.9 mm (2.9 in)	45 of 100 (Notable)
Mtn Park	United States	Record low maximum temperature	7.8 C (46.0 F)	45 of 100 (Notable)
Medford	United States	Record daily precipitation	49.5 mm (1.9 in)	45 of 100 (Notable)
Hayes Center 1NW	United States	Record daily snowfall	5.1 cm (2.0 in)	45 of 100 (Notable)
Snowflake	United States	Record low maximum temperature	9.4 C (48.9 F)	44 of 100 (Notable)
Cherokee	United States	Record daily precipitation	38.1 mm (1.5 in)	44 of 100 (Notable)
Capitan	United States	Record daily snowfall	7.6 cm (3.0 in)	44 of 100 (Notable)
Cloudcroft	United States	Record low maximum temperature	4.4 C (39.9 F)	44 of 100 (Notable)
Chattanooga	United States	Record low maximum temperature	9.4 C (48.9 F)	44 of 100 (Notable)
Forest Grove	Australia	Record daily precipitation	42.4 mm (1.7 in)	43 of 100 (Notable)
Buena Vista 2S	United States	Record low maximum temperature	-4.4 C (24.1 F)	43 of 100 (Notable)
Charles City	United States	Record daily precipitation	57.4 mm (2.3 in)	43 of 100 (Notable)
Kanawha	United States	Record daily precipitation	47.5 mm (1.9 in)	43 of 100 (Notable)
Lake Mills	United States	Record daily precipitation	42.7 mm (1.7 in)	43 of 100 (Notable)
Wabasha	United States	Record daily precipitation	53.1 mm (2.1 in)	43 of 100 (Notable)
Carrizozo 1SW	United States	Record low maximum temperature	6.7 C (44.1 F)	43 of 100 (Notable)
Paragonah	United States	Record low maximum temperature	3.3 C (37.9 F)	43 of 100 (Notable)
Cedar Falls Hydro Plt	United States	Record daily precipitation	49.8 mm (2.0 in)	43 of 100 (Notable)
Lincoln UNIV Pwr Plt	United States	Record daily precipitation	88.9 mm (3.5 in)	43 of 100 (Notable)
Holbrook	United States	Record low maximum temperature	11.1 C (52.0 F)	42 of 100 (Notable)
Blytheville	United States	Record daily precipitation	67.8 mm (2.7 in)	42 of 100 (Notable)
Blackfoot Fire Dept	United States	Record low minimum temperature	-8.9 C (16.0 F)	42 of 100 (Notable)
Clarion	United States	Record daily precipitation	52.8 mm (2.1 in)	42 of 100 (Notable)
Beloit	United States	Record low maximum temperature	6.1 C (43.0 F)	42 of 100 (Notable)
Richfield	United States	Record low maximum temperature	4.4 C (39.9 F)	42 of 100 (Notable)

Counts by Type and Timescale

1,510 records

Records set or tied on 12 October 1986 by type: Highest daily maximum 75, Lowest daily maximum 533, Highest daily minimum 90, Lowest daily minimum 308, Heaviest daily rainfall 394, Heaviest daily snowfall 62, Deepest snow cover 48.

Records on 12 October 1986 by type
Record type	Records
Highest daily maximum	75
Lowest daily maximum	533
Highest daily minimum	90
Lowest daily minimum	308
Heaviest daily rainfall	394
Heaviest daily snowfall	62
Deepest snow cover	48

Records on 12 October 1986 by timescale: all-time 0, monthly 52, daily 1,458.

How Much Records Were Beaten By

1,277 broken records

Margins by which the 1,277 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 305.0. Ties are not counted.

Top 20 by Significance

12 October 1986

Top 20 records on 12 October 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 October 1986	Estancia 4N, US	daily snowfall	20.3 cm (8.0 in)	20.3 cm (8.0 in)	80 years	72 of 100 (Major)
12 October 1986	Osage, US	daily rain	60.5 mm (2.4 in)	31.8 mm (1.3 in)	72 years	63 of 100 (Major)
12 October 1986	Cedaredge, US	monthly snowfall	30.5 cm (12.0 in)	16.5 cm (6.5 in)	13 years	62 of 100 (Major)
12 October 1986	Dolores, US	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	76 years	62 of 100 (Major)
12 October 1986	Jefferson, US	daily rain	52.1 mm (2.1 in)	30.3 mm (1.2 in)	71 years	60 of 100 (Major)
12 October 1986	Tanhoj, RU	daily rain	42.9 mm (1.7 in)	29.2 mm (1.1 in)	47 years	59 of 100 (Notable)
12 October 1986	Paonia 1SW, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	90 years	56 of 100 (Notable)
12 October 1986	Centennial 1NE, US	daily low min	-18.9 C (-2.0 F)	11.1 C (20.0 F)	71 years	54 of 100 (Notable)
12 October 1986	Perry, US	daily rain	48.8 mm (1.9 in)	28.0 mm (1.1 in)	65 years	53 of 100 (Notable)
12 October 1986	Beaver Is, US	daily rain	35.6 mm (1.4 in)	18.6 mm (0.7 in)	73 years	53 of 100 (Notable)
12 October 1986	El Rito, US	monthly snowfall	30.5 cm (12.0 in)	15.3 cm (6.0 in)	16 years	53 of 100 (Notable)
12 October 1986	Greer, US	daily snowfall	17.8 cm (7.0 in)	17.8 cm (7.0 in)	80 years	51 of 100 (Notable)
12 October 1986	Durango, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	88 years	51 of 100 (Notable)
12 October 1986	Forest City 2 NNE, US	daily rain	41.1 mm (1.6 in)	18.2 mm (0.7 in)	84 years	51 of 100 (Notable)
12 October 1986	Waterloo, US	daily rain	71.1 mm (2.8 in)	60.2 mm (2.4 in)	28 years	51 of 100 (Notable)
12 October 1986	Childs, US	daily rain	45.2 mm (1.8 in)	30.0 mm (1.2 in)	57 years	50 of 100 (Notable)
12 October 1986	Webster City, US	daily rain	48.3 mm (1.9 in)	24.2 mm (1.0 in)	57 years	50 of 100 (Notable)
12 October 1986	Grand Meadow, US	daily rain	50.8 mm (2.0 in)	25.1 mm (1.0 in)	57 years	50 of 100 (Notable)
12 October 1986	Saigo, JP	daily rain	76.5 mm (3.0 in)	58.1 mm (2.3 in)	20 years	49 of 100 (Notable)
12 October 1986	Tacoma, US	daily snow depth	12.7 cm (5.0 in)	12.7 cm (5.0 in)	36 years	49 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

1805 to 1986

Records set or tied on this calendar date in each year from 1805 to 1986. 1986 had 1,510 records.

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

Records on 10-12 in each year
Year	Records
1805	2
1809	1
1810	1
1814	3
1822	1
1839	1
1841	1
1843	1
1850	1
1852	1
1854	1
1859	1
1860	2
1861	1
1867	1
1871	3
1873	2
1875	2
1876	5
1879	2
1881	2
1884	1
1885	2
1886	1
1887	2
1888	1
1889	1
1890	3
1891	1
1892	1
1893	2
1894	2
1895	2
1896	3
1897	3
1898	2
1899	3
1900	2
1901	6
1902	14
1903	16
1904	30
1905	13
1906	16
1907	10
1908	13
1909	30
1910	13
1911	10
1912	30
1913	33
1914	17
1915	34
1916	29
1917	53
1918	29
1919	53
1920	79
1921	102
1922	21
1923	200
1924	129
1925	107
1926	201
1927	195
1928	714
1929	165
1930	606
1931	283
1932	398
1933	155
1934	477
1935	209
1936	301
1937	185
1938	470
1939	198
1940	235
1941	226
1942	540
1943	418
1944	274
1945	321
1946	554
1947	358
1948	311
1949	725
1950	594
1951	391
1952	352
1953	252
1954	911
1955	383
1956	899
1957	473
1958	448
1959	501
1960	449
1961	436
1962	971
1963	459
1964	636
1965	157
1966	423
1967	623
1968	443
1969	1,828
1970	763
1971	382
1972	412
1973	673
1974	369
1975	830
1976	582
1977	832
1978	525
1979	898
1980	741
1981	1,201
1982	777
1983	992
1984	636
1985	872
1986	1,510
1987	1,530
1988	1,015
1989	543
1990	1,325
1991	948
1992	865
1993	1,145
1994	934
1995	1,238
1996	816
1997	1,851
1998	741
1999	641
2000	1,095
2001	1,194
2002	1,139
2003	1,043
2004	750
2005	872
2006	1,357
2007	566
2008	1,669
2009	2,300
2010	797
2011	906
2012	921
2013	558
2014	514
2015	964
2016	374
2017	1,068
2018	1,195
2019	1,321
2020	655
2021	1,294
2022	439
2023	904
2024	958
2025	624
2026	768

Download the Data

Data for records on 1986-10-12: 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 50	1,207
50 to 100	42
100 to 150	17
150 to 200	7
200 to 250	2
250 to 300	1
300 to 350	1