Weather Records on 10 December 1986

601 weather records were set or tied worldwide on 10 December 1986. Highest significance: Ft Bayard 4W, US.

Key Facts for 10 December 1986

On 10 December 1986, 601 weather records were set or tied at long-record stations worldwide.
280 were record highs and 97 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 22 monthly and 577 daily.
Ft Bayard 4W set a daily record snowfall of 20.3 cm (8.0 in) on 10 December 1986.
Across 161 earlier years (1796 to 2025) the same calendar date averaged 447 records.

Record Map

601 stations

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

Weather records on 10 December 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ft Bayard 4W	United States	Record daily snowfall	20.3 cm (8.0 in)	60 of 100 (Major)
Eagle Nest	United States	Record daily snowfall	27.9 cm (11.0 in)	57 of 100 (Notable)
Samalayuca	Mexico	Record daily precipitation	39.9 mm (1.6 in)	55 of 100 (Notable)
Jangier	Tajikistan	Record daily precipitation	25.2 mm (1.0 in)	53 of 100 (Notable)
Elk	United States	Record daily snowfall	15.2 cm (6.0 in)	53 of 100 (Notable)
Shirabad	Uzbekistan	Record daily precipitation	26.8 mm (1.1 in)	47 of 100 (Notable)
Celina	United States	Record daily precipitation	57.9 mm (2.3 in)	45 of 100 (Notable)
Sonora	United States	Record low maximum temperature	-1.7 C (28.9 F)	45 of 100 (Notable)
Duncan	United States	Record daily snowfall	11.4 cm (4.5 in)	44 of 100 (Notable)
Pecos	United States	Record daily snowfall	6.4 cm (2.5 in)	44 of 100 (Notable)
Kitoi Bay	United States	Record daily precipitation	71.6 mm (2.8 in)	43 of 100 (Notable)
Seward AP	United States	Record daily precipitation	71.1 mm (2.8 in)	43 of 100 (Notable)
Chicontepec de Tejeda (Smn)	Mexico	Record daily precipitation	39.9 mm (1.6 in)	41 of 100 (Notable)
Aleman Rch	United States	Record daily snowfall	12.7 cm (5.0 in)	40 of 100 (Notable)
Cimarron 4 SW	United States	Record snow depth	20.3 cm (8.0 in)	40 of 100 (Notable)
Florida	United States	Record snow depth	10.2 cm (4.0 in)	39 of 100 (Notable)
San Angelo	United States	Record daily snowfall	8.4 cm (3.3 in)	39 of 100 (Notable)
Potchefstroom;Braksp	South Africa	Record daily precipitation	58.0 mm (2.3 in)	38 of 100 (Notable)
Livingston	United States	Record daily precipitation	48.8 mm (1.9 in)	38 of 100 (Notable)
Yeso 2 S	United States	Record daily snowfall	15.2 cm (6.0 in)	38 of 100 (Notable)
Ibitinga	Brazil	Record daily precipitation	78.4 mm (3.1 in)	36 of 100 (Notable)
Premier Mine-Cullinan	South Africa	Record daily precipitation	37.5 mm (1.5 in)	36 of 100 (Notable)
Jacksonville NAS	United States	Record daily precipitation	65.8 mm (2.6 in)	36 of 100 (Notable)
Moultrie 2 ESE	United States	Record high minimum temperature	20.6 C (69.1 F)	35 of 100 (Notable)
De Kroon (Irr)	South Africa	Record daily precipitation	49.5 mm (1.9 in)	34 of 100 (Routine)
Presque Isle	United States	Record daily snowfall	20.3 cm (8.0 in)	34 of 100 (Routine)
Rienhardt Rch	United States	Record daily snowfall	12.7 cm (5.0 in)	34 of 100 (Routine)
Whitewater	United States	Record daily snowfall	15.7 cm (6.2 in)	34 of 100 (Routine)
Willard 4 SW	United States	Record high minimum temperature	17.2 C (63.0 F)	34 of 100 (Routine)
Midland 4 ENE	United States	Record snow depth	10.2 cm (4.0 in)	33 of 100 (Routine)
Ft Yukon	United States	Record high minimum temperature	-17.2 C (1.0 F)	33 of 100 (Routine)
Bjelasnica	Bosnia and Herzegovina	Record high minimum temperature	0.3 C (32.5 F)	32 of 100 (Routine)
Thomasville 7 NE	United States	Record high minimum temperature	18.9 C (66.0 F)	32 of 100 (Routine)
Crossroads 2	United States	Record daily snowfall	5.1 cm (2.0 in)	32 of 100 (Routine)
Hobbs	United States	Record snow depth	10.2 cm (4.0 in)	32 of 100 (Routine)
Tarboro 1 S	United States	Record high minimum temperature	14.4 C (57.9 F)	32 of 100 (Routine)
Cavern City AP	United States	Record daily snowfall	13.0 cm (5.1 in)	32 of 100 (Routine)
San Antonio Las Alazanas (Dge	Mexico	Record daily precipitation	30.0 mm (1.2 in)	31 of 100 (Routine)
Alamogordo	United States	Record low maximum temperature	0.0 C (32.0 F)	31 of 100 (Routine)
Edenton	United States	Record high maximum temperature	24.4 C (75.9 F)	31 of 100 (Routine)
Beaufort Wwtp	United States	Record high minimum temperature	17.2 C (63.0 F)	31 of 100 (Routine)
Georgetown 2 E	United States	Record high minimum temperature	18.3 C (64.9 F)	31 of 100 (Routine)
Jequie	Brazil	Record daily precipitation	39.0 mm (1.5 in)	30 of 100 (Routine)
Shakhrinau	Tajikistan	Record daily precipitation	32.8 mm (1.3 in)	30 of 100 (Routine)
Chiricahua Nm	United States	Record daily precipitation	48.5 mm (1.9 in)	30 of 100 (Routine)
Tifton	United States	Record high minimum temperature	18.3 C (64.9 F)	30 of 100 (Routine)
London Locks	United States	Record daily precipitation	38.1 mm (1.5 in)	30 of 100 (Routine)
Brassua Dam	United States	Record daily snowfall	18.3 cm (7.2 in)	29 of 100 (Routine)
Capitan	United States	Record low maximum temperature	-1.7 C (28.9 F)	29 of 100 (Routine)
Greenville	United States	Record high maximum temperature	26.1 C (79.0 F)	29 of 100 (Routine)
Hobhouse 23	South Africa	Record daily precipitation	42.5 mm (1.7 in)	28 of 100 (Routine)
Frederick Police Brks	United States	Record high minimum temperature	7.8 C (46.0 F)	28 of 100 (Routine)
Dilia	United States	Record low maximum temperature	-5.0 C (23.0 F)	28 of 100 (Routine)
Hobbs	United States	Record daily snowfall	8.9 cm (3.5 in)	28 of 100 (Routine)
Aiken 5SE	United States	Record high minimum temperature	16.7 C (62.1 F)	28 of 100 (Routine)
Valentia Observatory	Ireland	Record daily precipitation	39.7 mm (1.6 in)	27 of 100 (Routine)
Madison	United States	Record high minimum temperature	20.0 C (68.0 F)	27 of 100 (Routine)
Monticello 5 SE	United States	Record high minimum temperature	17.2 C (63.0 F)	27 of 100 (Routine)
Monroe 2 SE	United States	Record high minimum temperature	15.0 C (59.0 F)	27 of 100 (Routine)
Coronel Murta	Brazil	Record daily precipitation	58.5 mm (2.3 in)	26 of 100 (Routine)

Counts by Type and Timescale

601 records

Records set or tied on 10 December 1986 by type: Highest daily maximum 109, Lowest daily maximum 69, Highest daily minimum 171, Lowest daily minimum 28, Heaviest daily rainfall 158, Heaviest daily snowfall 47, Deepest snow cover 19.

Records on 10 December 1986 by type
Record type	Records
Highest daily maximum	109
Lowest daily maximum	69
Highest daily minimum	171
Lowest daily minimum	28
Heaviest daily rainfall	158
Heaviest daily snowfall	47
Deepest snow cover	19

Records on 10 December 1986 by timescale: all-time 2, monthly 22, daily 577.

How Much Records Were Beaten By

463 broken records

Margins by which the 463 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 203.0. Ties are not counted.

Top 20 by Significance

10 December 1986

Top 20 records on 10 December 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 December 1986	Ft Bayard 4W, US	daily snowfall	20.3 cm (8.0 in)	14.7 cm (5.8 in)	80 years	60 of 100 (Major)
10 December 1986	Eagle Nest, US	daily snowfall	27.9 cm (11.0 in)	20.3 cm (8.0 in)	53 years	57 of 100 (Notable)
10 December 1986	Samalayuca, MX	daily rain	39.9 mm (1.6 in)	31.0 mm (1.2 in)	36 years	55 of 100 (Notable)
10 December 1986	Jangier, TJ	daily rain	25.2 mm (1.0 in)	16.4 mm (0.6 in)	49 years	53 of 100 (Notable)
10 December 1986	Elk, US	daily snowfall	15.2 cm (6.0 in)	12.7 cm (5.0 in)	87 years	53 of 100 (Notable)
10 December 1986	Shirabad, UZ	monthly rain	26.8 mm (1.1 in)	6.5 mm (0.26 in)	45 years	47 of 100 (Notable)
10 December 1986	Celina, US	daily rain	57.9 mm (2.3 in)	28.7 mm (1.1 in)	53 years	45 of 100 (Notable)
10 December 1986	Sonora, US	daily low max	-1.7 C (28.9 F)	7.3 C (13.1 F)	80 years	45 of 100 (Notable)
10 December 1986	Duncan, US	monthly snowfall	11.4 cm (4.5 in)	1.2 cm (0.5 in)	80 years	44 of 100 (Notable)
10 December 1986	Pecos, US	daily snowfall	6.4 cm (2.5 in)	6.4 cm (2.5 in)	81 years	44 of 100 (Notable)
10 December 1986	Kitoi Bay, US	daily rain	71.6 mm (2.8 in)	40.6 mm (1.6 in)	0 years	43 of 100 (Notable)
10 December 1986	Seward AP, US	daily rain	71.1 mm (2.8 in)	22.8 mm (0.9 in)	73 years	43 of 100 (Notable)
10 December 1986	Chicontepec de Tejeda (Smn), MX	daily rain	39.9 mm (1.6 in)	31.8 mm (1.3 in)	28 years	41 of 100 (Notable)
10 December 1986	Aleman Rch, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	37 years	40 of 100 (Notable)
10 December 1986	Cimarron 4 SW, US	daily snow depth	20.3 cm (8.0 in)	5.1 cm (2.0 in)	75 years	40 of 100 (Notable)
10 December 1986	Florida, US	all-time snow depth	10.2 cm (4.0 in)	2.6 cm (1.0 in)	44 years	39 of 100 (Notable)
10 December 1986	San Angelo, US	monthly snowfall	8.4 cm (3.3 in)	2.0 cm (0.8 in)	56 years	39 of 100 (Notable)
10 December 1986	Potchefstroom;Braksp, ZA	daily rain	58.0 mm (2.3 in)	27.5 mm (1.1 in)	28 years	38 of 100 (Notable)
10 December 1986	Livingston, US	daily rain	48.8 mm (1.9 in)	8.7 mm (0.34 in)	80 years	38 of 100 (Notable)
10 December 1986	Yeso 2 S, US	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	37 years	38 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 1986

Records set or tied on this calendar date in each year from 1796 to 1986. 1986 had 601 records.

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

Records on 12-10 in each year
Year	Records
1796	1
1812	2
1815	1
1816	1
1825	2
1841	1
1844	1
1848	1
1849	1
1852	2
1855	1
1856	1
1860	1
1867	2
1869	1
1870	1
1871	1
1872	1
1873	2
1875	1
1876	4
1877	1
1878	3
1879	10
1880	2
1882	2
1884	1
1886	1
1889	1
1891	17
1893	2
1894	2
1895	4
1897	1
1898	4
1899	4
1900	1
1901	5
1902	8
1903	7
1904	15
1905	18
1906	15
1907	29
1908	11
1909	16
1910	47
1911	35
1912	23
1913	21
1914	35
1915	123
1916	89
1917	76
1918	30
1919	80
1920	186
1921	52
1922	157
1923	121
1924	64
1925	83
1926	106
1927	202
1928	131
1929	250
1930	141
1931	318
1932	511
1933	265
1934	331
1935	194
1936	178
1937	449
1938	272
1939	924
1940	163
1941	249
1942	282
1943	504
1944	431
1945	193
1946	1,073
1947	378
1948	174
1949	536
1950	336
1951	582
1952	633
1953	408
1954	336
1955	385
1956	455
1957	449
1958	751
1959	205
1960	390
1961	878
1962	405
1963	511
1964	447
1965	843
1966	991
1967	829
1968	576
1969	423
1970	1,338
1971	1,646
1972	1,858
1973	453
1974	372
1975	688
1976	376
1977	1,370
1978	1,299
1979	1,378
1980	531
1981	1,035
1982	748
1983	685
1984	605
1985	1,421
1986	601
1987	803
1988	599
1989	787
1990	935
1991	940
1992	795
1993	754
1994	940
1995	1,758
1996	1,193
1997	1,198
1998	709
1999	568
2000	882
2001	460
2002	1,030
2003	1,086
2004	1,247
2005	833
2006	998
2007	1,202
2008	1,083
2009	1,354
2010	1,424
2011	362
2012	825
2013	1,010
2014	602
2015	1,166
2016	858
2017	719
2018	500
2019	572
2020	567
2021	934
2022	570
2023	926
2024	477
2025	1,969

Download the Data

Data for records on 1986-12-10: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 50	434
50 to 100	21
100 to 150	6
150 to 200	1
200 to 250	1