Weather Records on 11 December 1986

561 weather records were set or tied worldwide on 11 December 1986. Highest significance: Beaver Is, US.

Key Facts for 11 December 1986

On 11 December 1986, 561 weather records were set or tied at long-record stations worldwide.
236 were record highs and 130 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 26 monthly and 534 daily.
Beaver Is set a daily record snowfall of 22.9 cm (9.0 in) on 11 December 1986.
Across 154 earlier years (1796 to 2025) the same calendar date averaged 472 records.

Record Map

561 stations

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

Weather records on 11 December 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Beaver Is	United States	Record daily snowfall	22.9 cm (9.0 in)	54 of 100 (Notable)
Grandfalls 3SSE	United States	Record daily snowfall	12.7 cm (5.0 in)	54 of 100 (Notable)
Coleman	United States	Record daily snowfall	7.6 cm (3.0 in)	51 of 100 (Notable)
Menard	United States	Record daily snowfall	7.6 cm (3.0 in)	49 of 100 (Notable)
McAllen	United States	Record daily precipitation	29.5 mm (1.2 in)	48 of 100 (Notable)
La Tuna 1 S	United States	Record daily precipitation	28.4 mm (1.1 in)	47 of 100 (Notable)
Paint Rock	United States	Record daily snowfall	10.2 cm (4.0 in)	46 of 100 (Notable)
Brownwood 2NE	United States	Record daily precipitation	43.2 mm (1.7 in)	41 of 100 (Notable)
Brooksville Chin Hill	United States	Record high minimum temperature	21.1 C (70.0 F)	40 of 100 (Notable)
Seminole	United States	Record daily snowfall	7.6 cm (3.0 in)	40 of 100 (Notable)
Beaufort Wwtp	United States	Record high minimum temperature	17.8 C (64.0 F)	38 of 100 (Notable)
Homestead Exp STN	United States	Record high minimum temperature	23.9 C (75.0 F)	37 of 100 (Notable)
Madison	United States	Record daily precipitation	95.8 mm (3.8 in)	37 of 100 (Notable)
Georgetown 2 E	United States	Record high minimum temperature	17.2 C (63.0 F)	37 of 100 (Notable)
Tanana AP	United States	Record high minimum temperature	-2.8 C (27.0 F)	36 of 100 (Notable)
Arcadia	United States	Record high minimum temperature	20.0 C (68.0 F)	35 of 100 (Notable)
Taos	United States	Record low maximum temperature	-2.8 C (27.0 F)	33 of 100 (Routine)
Westhope	United States	Record daily snowfall	10.2 cm (4.0 in)	33 of 100 (Routine)
Sumter	United States	Record high maximum temperature	25.0 C (77.0 F)	33 of 100 (Routine)
Manati 2 E	Puerto Rico [United States]	Record high minimum temperature	22.8 C (73.0 F)	32 of 100 (Routine)
Federal Pt	United States	Record high minimum temperature	20.0 C (68.0 F)	32 of 100 (Routine)
Southport 5 N	United States	Record high minimum temperature	18.3 C (64.9 F)	32 of 100 (Routine)
Bottineau	United States	Record daily snowfall	7.6 cm (3.0 in)	32 of 100 (Routine)
Lenorah	United States	Record daily snowfall	7.6 cm (3.0 in)	32 of 100 (Routine)
McKinley Park	United States	Record high minimum temperature	4.4 C (39.9 F)	32 of 100 (Routine)
Richfield	United States	Record daily snowfall	10.2 cm (4.0 in)	31 of 100 (Routine)
Yemassee 1 N	United States	Record daily precipitation	37.3 mm (1.5 in)	31 of 100 (Routine)
Red Lake Indian Agcy	United States	Record daily snowfall	7.6 cm (3.0 in)	30 of 100 (Routine)
Carlsbad	United States	Record low maximum temperature	-1.7 C (28.9 F)	30 of 100 (Routine)
Hobbs	United States	Record daily snowfall	5.1 cm (2.0 in)	30 of 100 (Routine)
Georgetown 2 E	United States	Record daily precipitation	33.3 mm (1.3 in)	30 of 100 (Routine)
Quitman 2 NW	United States	Record daily precipitation	77.5 mm (3.1 in)	29 of 100 (Routine)
Larimore 4SW	United States	Record daily snowfall	8.1 cm (3.2 in)	29 of 100 (Routine)
Falfurrias	United States	Record low maximum temperature	8.3 C (46.9 F)	29 of 100 (Routine)
Igarapava	Brazil	Record daily precipitation	64.8 mm (2.6 in)	28 of 100 (Routine)
Miami	United States	Record low minimum temperature	-4.4 C (24.1 F)	28 of 100 (Routine)
Eagle	United States	Record high minimum temperature	-2.8 C (27.0 F)	28 of 100 (Routine)
Chisos Basin	United States	Record low maximum temperature	-2.2 C (28.0 F)	27 of 100 (Routine)
Danbury	United States	Record daily snowfall	9.7 cm (3.8 in)	27 of 100 (Routine)
Kohala Mis 175.1	United States	Record daily precipitation	92.5 mm (3.6 in)	27 of 100 (Routine)
Wales	United States	Record high minimum temperature	-3.9 C (25.0 F)	27 of 100 (Routine)
Belle Glade	United States	Record high maximum temperature	30.6 C (87.1 F)	26 of 100 (Routine)
Lake Alfred Exp STN	United States	Record high maximum temperature	30.6 C (87.1 F)	26 of 100 (Routine)
Willow City	United States	Record daily snowfall	7.6 cm (3.0 in)	26 of 100 (Routine)
Cheraw	United States	Record high maximum temperature	24.4 C (75.9 F)	26 of 100 (Routine)
Menard	United States	Record snow depth	15.2 cm (6.0 in)	26 of 100 (Routine)
Pecos	United States	Record snow depth	10.2 cm (4.0 in)	26 of 100 (Routine)
Hayward Rs	United States	Record daily snowfall	10.2 cm (4.0 in)	26 of 100 (Routine)
Midland Odessa	United States	Record snow depth	10.2 cm (4.0 in)	26 of 100 (Routine)
Tres Zapotes	Mexico	Record low maximum temperature	18.9 C (66.0 F)	25 of 100 (Routine)
Glennville 3NW	United States	Record daily precipitation	50.8 mm (2.0 in)	25 of 100 (Routine)
Ft Bayard 4W	United States	Record low minimum temperature	-15.0 C (5.0 F)	25 of 100 (Routine)
Mimbres 4NNW	United States	Record snow depth	20.3 cm (8.0 in)	25 of 100 (Routine)
St Croix Falls	United States	Record daily snowfall	10.2 cm (4.0 in)	25 of 100 (Routine)
Atil	Mexico	Record low minimum temperature	-5.0 C (23.0 F)	24 of 100 (Routine)
Cross City 1 E	United States	Record daily precipitation	67.6 mm (2.7 in)	24 of 100 (Routine)
Hialeah	United States	Record high maximum temperature	30.6 C (87.1 F)	24 of 100 (Routine)
Moore Haven Lock 1	United States	Record high maximum temperature	31.1 C (88.0 F)	24 of 100 (Routine)
Elk	United States	Record low minimum temperature	-17.8 C (0.0 F)	24 of 100 (Routine)
Kotzebue AP	United States	Record high minimum temperature	0.0 C (32.0 F)	24 of 100 (Routine)

Counts by Type and Timescale

561 records

Records set or tied on 11 December 1986 by type: Highest daily maximum 91, Lowest daily maximum 88, Highest daily minimum 145, Lowest daily minimum 42, Heaviest daily rainfall 94, Heaviest daily snowfall 69, Deepest snow cover 32.

Records on 11 December 1986 by type
Record type	Records
Highest daily maximum	91
Lowest daily maximum	88
Highest daily minimum	145
Lowest daily minimum	42
Heaviest daily rainfall	94
Heaviest daily snowfall	69
Deepest snow cover	32

Records on 11 December 1986 by timescale: all-time 1, monthly 26, daily 534.

How Much Records Were Beaten By

422 broken records

Margins by which the 422 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 127.0. Ties are not counted.

Top 20 by Significance

11 December 1986

Top 20 records on 11 December 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 December 1986	Beaver Is, US	daily snowfall	22.9 cm (9.0 in)	12.7 cm (5.0 in)	76 years	54 of 100 (Notable)
11 December 1986	Grandfalls 3SSE, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	75 years	54 of 100 (Notable)
11 December 1986	Coleman, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	91 years	51 of 100 (Notable)
11 December 1986	Menard, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	85 years	49 of 100 (Notable)
11 December 1986	McAllen, US	daily rain	29.5 mm (1.2 in)	21.1 mm (0.8 in)	44 years	48 of 100 (Notable)
11 December 1986	La Tuna 1 S, US	daily rain	28.4 mm (1.1 in)	20.3 mm (0.8 in)	36 years	47 of 100 (Notable)
11 December 1986	Paint Rock, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	68 years	46 of 100 (Notable)
11 December 1986	Brownwood 2NE, US	daily rain	43.2 mm (1.7 in)	19.6 mm (0.8 in)	44 years	41 of 100 (Notable)
11 December 1986	Brooksville Chin Hill, US	daily high min	21.1 C (70.0 F)	2.2 C (4.0 F)	91 years	40 of 100 (Notable)
11 December 1986	Seminole, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	64 years	40 of 100 (Notable)
11 December 1986	Beaufort Wwtp, US	daily high min	17.8 C (64.0 F)	1.1 C (2.0 F)	91 years	38 of 100 (Notable)
11 December 1986	Homestead Exp STN, US	monthly high min	23.9 C (75.0 F)	1.1 C (2.0 F)	60 years	37 of 100 (Notable)
11 December 1986	Madison, US	daily rain	95.8 mm (3.8 in)	47.0 mm (1.9 in)	3 years	37 of 100 (Notable)
11 December 1986	Georgetown 2 E, US	daily high min	17.2 C (63.0 F)	1.1 C (2.0 F)	86 years	37 of 100 (Notable)
11 December 1986	Tanana AP, US	daily high min	-2.8 C (27.0 F)	3.3 C (5.9 F)	84 years	36 of 100 (Notable)
11 December 1986	Arcadia, US	daily high min	20.0 C (68.0 F)	0.6 C (1.1 F)	86 years	35 of 100 (Notable)
11 December 1986	Taos, US	daily low max	-2.8 C (27.0 F)	0.6 C (1.1 F)	76 years	33 of 100 (Routine)
11 December 1986	Westhope, US	daily snowfall	10.2 cm (4.0 in)	4.6 cm (1.8 in)	48 years	33 of 100 (Routine)
11 December 1986	Sumter, US	daily high max	25.0 C (77.0 F)	1.1 C (2.0 F)	80 years	33 of 100 (Routine)
11 December 1986	Manati 2 E, PR	daily high min	22.8 C (73.0 F)	1.1 C (2.0 F)	53 years	32 of 100 (Routine)

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 561 records.

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

Records on 12-11 in each year
Year	Records
1796	2
1808	2
1815	2
1825	2
1841	1
1852	1
1855	2
1862	1
1868	1
1869	3
1871	4
1872	1
1876	2
1877	1
1878	2
1879	4
1880	2
1882	3
1886	1
1887	1
1889	1
1891	3
1892	2
1893	3
1894	1
1895	4
1897	2
1898	14
1899	5
1900	4
1901	5
1902	6
1903	2
1904	28
1905	15
1906	12
1907	30
1908	18
1909	7
1910	31
1911	49
1912	36
1913	8
1914	13
1915	93
1916	55
1917	103
1918	32
1919	40
1920	58
1921	49
1922	143
1923	88
1924	84
1925	81
1926	77
1927	232
1928	111
1929	345
1930	72
1931	762
1932	696
1933	260
1934	480
1935	290
1936	357
1937	839
1938	231
1939	626
1940	302
1941	353
1942	263
1943	196
1944	407
1945	234
1946	717
1947	342
1948	153
1949	1,201
1950	463
1951	261
1952	923
1953	157
1954	492
1955	312
1956	300
1957	517
1958	985
1959	322
1960	746
1961	1,300
1962	723
1963	604
1964	542
1965	1,216
1966	525
1967	945
1968	543
1969	587
1970	617
1971	900
1972	1,514
1973	334
1974	313
1975	454
1976	380
1977	1,182
1978	678
1979	847
1980	522
1981	949
1982	657
1983	971
1984	1,013
1985	1,471
1986	561
1987	639
1988	850
1989	584
1990	747
1991	1,102
1992	1,357
1993	749
1994	1,243
1995	1,837
1996	1,307
1997	1,203
1998	1,012
1999	769
2000	1,584
2001	626
2002	1,139
2003	646
2004	1,166
2005	816
2006	858
2007	1,613
2008	1,312
2009	1,091
2010	1,284
2011	416
2012	618
2013	737
2014	893
2015	1,183
2016	489
2017	670
2018	353
2019	442
2020	517
2021	1,175
2022	679
2023	814
2024	539
2025	1,691

Download the Data

Data for records on 1986-12-11: 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 20	363
20 to 40	32
40 to 60	13
60 to 80	10
80 to 100	0
100 to 120	2
120 to 140	2