Weather Records on 31 December 1986

616 weather records were set or tied worldwide on 31 December 1986. Highest significance: Tihoreck, RU.

Key Facts for 31 December 1986

On 31 December 1986, 616 weather records were set or tied at long-record stations worldwide.
310 were record highs and 101 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 9 monthly and 605 daily.
Tihoreck set a daily record precipitation of 37.9 mm (1.5 in) on 31 December 1986.
Across 157 earlier years (1797 to 2025) the same calendar date averaged 486 records.

Record Map

616 stations

616 station records on 31 December 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 December 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tihoreck	Russia	Record daily precipitation	37.9 mm (1.5 in)	54 of 100 (Notable)
Nuwara Eliya	Sri Lanka	Record high minimum temperature	17.9 C (64.2 F)	52 of 100 (Notable)
Ft Myers Page Fld AP	United States	Record daily precipitation	45.7 mm (1.8 in)	51 of 100 (Notable)
Kailiili 436	United States	Record daily precipitation	679.2 mm (26.7 in)	50 of 100 (Notable)
Plant City	United States	Record daily precipitation	37.6 mm (1.5 in)	49 of 100 (Notable)
Apsley (Parki)	Australia	Record daily precipitation	44.4 mm (1.7 in)	48 of 100 (Notable)
Oravska Lesna	Slovakia	Record daily precipitation	43.0 mm (1.7 in)	45 of 100 (Notable)
Nququ (Bos)	South Africa	Record daily precipitation	55.0 mm (2.2 in)	45 of 100 (Notable)
Brocken	Germany	Record daily precipitation	46.7 mm (1.8 in)	44 of 100 (Notable)
Wien	Austria	Record high minimum temperature	7.6 C (45.7 F)	43 of 100 (Notable)
Lupi Upper 442	United States	Record daily precipitation	365.8 mm (14.4 in)	43 of 100 (Notable)
Ft Green 12 WSW	United States	Record daily precipitation	53.3 mm (2.1 in)	42 of 100 (Notable)
Venice	United States	Record daily precipitation	45.2 mm (1.8 in)	42 of 100 (Notable)
Everglades	United States	Record daily precipitation	56.9 mm (2.2 in)	41 of 100 (Notable)
Gorjacij Kljuc	Russia	Record daily precipitation	58.9 mm (2.3 in)	38 of 100 (Notable)
Rive	Brazil	Record daily precipitation	83.4 mm (3.3 in)	37 of 100 (Notable)
Vajda-Guba	Russia	Record low minimum temperature	-20.6 C (-5.1 F)	37 of 100 (Notable)
Tiree	Australia	Record daily precipitation	54.0 mm (2.1 in)	36 of 100 (Notable)
Key West NAS	United States	Record daily precipitation	47.5 mm (1.9 in)	36 of 100 (Notable)
Vastervik	Sweden	Record low minimum temperature	-19.0 C (-2.2 F)	35 of 100 (Notable)
Yahualica de Gonzalez Gallo (	Mexico	Record low minimum temperature	-6.7 C (19.9 F)	34 of 100 (Routine)
Chardzhev	Turkmenistan	Record daily precipitation	25.2 mm (1.0 in)	34 of 100 (Routine)
Key W Intl AP	United States	Record daily precipitation	34.3 mm (1.4 in)	34 of 100 (Routine)
Saint Leo	United States	Record daily precipitation	35.8 mm (1.4 in)	33 of 100 (Routine)
Altamirano (Smn)	Mexico	Record daily precipitation	27.7 mm (1.1 in)	32 of 100 (Routine)
Mae Hong Son	Thailand	Record daily precipitation	26.9 mm (1.1 in)	32 of 100 (Routine)
Stillmore	United States	Record daily precipitation	45.7 mm (1.8 in)	32 of 100 (Routine)
Hyannis	United States	Record daily precipitation	47.0 mm (1.9 in)	32 of 100 (Routine)
Traverse Cy Cherry Capital AP	United States	Record high minimum temperature	0.6 C (33.1 F)	32 of 100 (Routine)
Insizwa (Bos)	South Africa	Record daily precipitation	32.0 mm (1.3 in)	31 of 100 (Routine)
Atkinson 2 W	United States	Record daily precipitation	51.6 mm (2.0 in)	30 of 100 (Routine)
Honokohua 493	United States	Record daily precipitation	110.2 mm (4.3 in)	30 of 100 (Routine)
Buenos Aires Observ	Argentina	Record low maximum temperature	21.7 C (71.1 F)	29 of 100 (Routine)
Cedral	Mexico	Record low maximum temperature	11.1 C (52.0 F)	29 of 100 (Routine)
Xai Xai	Mozambique	Record daily precipitation	97.8 mm (3.9 in)	29 of 100 (Routine)
Tromso	Norway	Record low maximum temperature	-12.0 C (10.4 F)	29 of 100 (Routine)
Babson Park 1 ENE	United States	Record daily precipitation	39.6 mm (1.6 in)	29 of 100 (Routine)
Presa Jocoque	Mexico	Record low minimum temperature	-5.0 C (23.0 F)	28 of 100 (Routine)
Tuapse	Russia	Record daily precipitation	83.0 mm (3.3 in)	28 of 100 (Routine)
St Petersburg	United States	Record daily precipitation	38.1 mm (1.5 in)	28 of 100 (Routine)
W Branch 3SE	United States	Record high minimum temperature	-1.7 C (28.9 F)	28 of 100 (Routine)
Le Bourget	France	Record high minimum temperature	8.9 C (48.0 F)	27 of 100 (Routine)
Geisenheim	Germany	Record high minimum temperature	7.5 C (45.5 F)	27 of 100 (Routine)
Lakeland Linder Rgnl AP	United States	Record daily precipitation	42.2 mm (1.7 in)	27 of 100 (Routine)
Ladysdale	South Africa	Record daily precipitation	38.0 mm (1.5 in)	26 of 100 (Routine)
Cloquet	United States	Record high minimum temperature	-2.8 C (27.0 F)	26 of 100 (Routine)
Grand Marais	United States	Record high minimum temperature	0.6 C (33.1 F)	26 of 100 (Routine)
Newport 2 NNW	United States	Record daily snowfall	5.1 cm (2.0 in)	26 of 100 (Routine)
Shemya USAF Base	United States	Record daily snowfall	10.7 cm (4.2 in)	26 of 100 (Routine)
Alpena Co Rgnl AP	United States	Record high minimum temperature	0.6 C (33.1 F)	26 of 100 (Routine)
Verhneimbatsk	Russia	Record low maximum temperature	-48.7 C (-55.7 F)	25 of 100 (Routine)
Karlstad	Sweden	Record snow depth	27.9 cm (11.0 in)	25 of 100 (Routine)
Harlem	United States	Record high minimum temperature	3.9 C (39.0 F)	25 of 100 (Routine)
Deland 1 SSE	United States	Record daily precipitation	47.0 mm (1.9 in)	24 of 100 (Routine)
Enisejsk	Russia	Record low maximum temperature	-38.8 C (-37.8 F)	23 of 100 (Routine)
A Coruna	Spain	Record high minimum temperature	13.0 C (55.4 F)	23 of 100 (Routine)
Patchogue 2 N	United States	Record daily snowfall	7.6 cm (3.0 in)	23 of 100 (Routine)
Abbeville	France	Record high minimum temperature	8.6 C (47.5 F)	22 of 100 (Routine)
Mauth-Finsterau	Germany	Record daily precipitation	35.6 mm (1.4 in)	22 of 100 (Routine)
Pabellon Campo Experimental	Mexico	Record low maximum temperature	10.0 C (50.0 F)	22 of 100 (Routine)

Counts by Type and Timescale

616 records

Records set or tied on 31 December 1986 by type: Highest daily maximum 57, Lowest daily maximum 57, Highest daily minimum 253, Lowest daily minimum 44, Heaviest daily rainfall 184, Heaviest daily snowfall 15, Deepest snow cover 6.

Records on 31 December 1986 by type
Record type	Records
Highest daily maximum	57
Lowest daily maximum	57
Highest daily minimum	253
Lowest daily minimum	44
Heaviest daily rainfall	184
Heaviest daily snowfall	15
Deepest snow cover	6

Records on 31 December 1986 by timescale: all-time 2, monthly 9, daily 605.

How Much Records Were Beaten By

533 broken records

Margins by which the 533 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 113.6. Ties are not counted.

Top 20 by Significance

31 December 1986

Top 20 records on 31 December 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 December 1986	Tihoreck, RU	daily rain	37.9 mm (1.5 in)	17.4 mm (0.7 in)	45 years	54 of 100 (Notable)
31 December 1986	Nuwara Eliya, LK	monthly high min	17.9 C (64.2 F)	0.7 C (1.3 F)	102 years	52 of 100 (Notable)
31 December 1986	Ft Myers Page Fld AP, US	daily rain	45.7 mm (1.8 in)	17.0 mm (0.7 in)	92 years	51 of 100 (Notable)
31 December 1986	Kailiili 436, US	all-time rain	679.2 mm (26.7 in)	83.3 mm (3.3 in)	1 year	50 of 100 (Notable)
31 December 1986	Plant City, US	daily rain	37.6 mm (1.5 in)	17.8 mm (0.7 in)	92 years	49 of 100 (Notable)
31 December 1986	Apsley (Parki), AU	daily rain	44.4 mm (1.7 in)	25.1 mm (1.0 in)	31 years	48 of 100 (Notable)
31 December 1986	Oravska Lesna, SK	daily rain	43.0 mm (1.7 in)	30.8 mm (1.2 in)	8 years	45 of 100 (Notable)
31 December 1986	Nququ (Bos), ZA	daily rain	55.0 mm (2.2 in)	27.3 mm (1.1 in)	55 years	45 of 100 (Notable)
31 December 1986	Brocken, DE	daily rain	46.7 mm (1.8 in)	14.7 mm (0.6 in)	60 years	44 of 100 (Notable)
31 December 1986	Wien, AT	daily high min	7.6 C (45.7 F)	1.7 C (3.1 F)	126 years	43 of 100 (Notable)
31 December 1986	Lupi Upper 442, US	daily rain	365.8 mm (14.4 in)	113.6 mm (4.5 in)	37 years	43 of 100 (Notable)
31 December 1986	Ft Green 12 WSW, US	daily rain	53.3 mm (2.1 in)	39.8 mm (1.6 in)	33 years	42 of 100 (Notable)
31 December 1986	Venice, US	daily rain	45.2 mm (1.8 in)	41.6 mm (1.6 in)	16 years	42 of 100 (Notable)
31 December 1986	Everglades, US	daily rain	56.9 mm (2.2 in)	37.3 mm (1.5 in)	23 years	41 of 100 (Notable)
31 December 1986	Gorjacij Kljuc, RU	daily rain	58.9 mm (2.3 in)	32.6 mm (1.3 in)	4 years	38 of 100 (Notable)
31 December 1986	Rive, BR	daily rain	83.4 mm (3.3 in)	33.4 mm (1.3 in)	44 years	37 of 100 (Notable)
31 December 1986	Vajda-Guba, RU	daily low min	-20.6 C (-5.1 F)	1.5 C (2.7 F)	84 years	37 of 100 (Notable)
31 December 1986	Tiree, AU	daily rain	54.0 mm (2.1 in)	15.9 mm (0.6 in)	69 years	36 of 100 (Notable)
31 December 1986	Key West NAS, US	daily rain	47.5 mm (1.9 in)	41.9 mm (1.6 in)	3 years	36 of 100 (Notable)
31 December 1986	Vastervik, SE	daily low min	-19.0 C (-2.2 F)	2.0 C (3.6 F)	71 years	35 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

1797 to 1986

Records set or tied on this calendar date in each year from 1797 to 1986. 1986 had 616 records.

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

Records on 12-31 in each year
Year	Records
1797	1
1799	2
1826	1
1836	1
1842	2
1850	3
1853	1
1854	1
1859	1
1860	1
1867	1
1870	2
1872	2
1874	4
1875	2
1876	2
1878	2
1879	2
1880	2
1882	1
1884	2
1885	1
1886	3
1887	1
1888	2
1890	2
1891	8
1892	4
1895	4
1897	6
1898	5
1899	4
1900	3
1901	16
1902	3
1903	3
1904	11
1905	9
1906	31
1907	11
1908	7
1909	5
1910	25
1911	14
1912	17
1913	46
1914	34
1915	32
1916	25
1917	239
1918	24
1919	38
1920	64
1921	130
1922	83
1923	280
1924	113
1925	183
1926	77
1927	491
1928	53
1929	224
1930	58
1931	543
1932	394
1933	409
1934	181
1935	309
1936	567
1937	500
1938	247
1939	298
1940	467
1941	159
1942	352
1943	159
1944	259
1945	210
1946	707
1947	461
1948	591
1949	384
1950	310
1951	1,421
1952	377
1953	410
1954	286
1955	429
1956	216
1957	724
1958	584
1959	414
1960	389
1961	309
1962	810
1963	1,015
1964	388
1965	1,371
1966	326
1967	1,023
1968	1,371
1969	825
1970	579
1971	568
1972	836
1973	1,370
1974	590
1975	791
1976	1,306
1977	641
1978	2,791
1979	448
1980	1,448
1981	786
1982	639
1983	2,220
1984	942
1985	593
1986	616
1987	845
1988	600
1989	506
1990	1,379
1991	703
1992	1,062
1993	718
1994	878
1995	1,151
1996	2,202
1997	988
1998	739
1999	524
2000	1,575
2001	748
2002	1,232
2003	523
2004	1,278
2005	959
2006	2,089
2007	652
2008	656
2009	867
2010	1,544
2011	739
2012	803
2013	606
2014	903
2015	748
2016	678
2017	1,589
2018	620
2019	593
2020	489
2021	1,739
2022	1,497
2023	474
2024	460
2025	760

Download the Data

Data for records on 1986-12-31: 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	504
20 to 40	18
40 to 60	8
60 to 80	1
80 to 100	1
100 to 120	1