Weather Records on 31 October 1986

396 weather records were set or tied worldwide on 31 October 1986. Highest significance: Nicosia, CY.

Key Facts for 31 October 1986

On 31 October 1986, 396 weather records were set or tied at long-record stations worldwide.
86 were record highs and 157 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 35 monthly and 360 daily.
Nicosia set a monthly record daily precipitation of 72.5 mm (2.9 in) on 31 October 1986.
Across 163 earlier years (1805 to 2025) the same calendar date averaged 472 records.

Record Map

396 stations

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

Weather records on 31 October 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Nicosia	Cyprus	Record daily precipitation	72.5 mm (2.9 in)	77 of 100 (Major)
Alexandria (Pol)	South Africa	Record daily precipitation	75.7 mm (3.0 in)	70 of 100 (Major)
Waterdale	United States	Record daily precipitation	45.7 mm (1.8 in)	61 of 100 (Major)
Buena Vista 2S	United States	Record daily precipitation	30.7 mm (1.2 in)	59 of 100 (Notable)
Dordrecht - Tnk 14	South Africa	Record daily precipitation	68.0 mm (2.7 in)	55 of 100 (Notable)
Overtornea	Sweden	Record daily precipitation	30.3 mm (1.2 in)	53 of 100 (Notable)
Vallecito Dam	United States	Record daily precipitation	63.5 mm (2.5 in)	52 of 100 (Notable)
Steynsburg	South Africa	Record daily precipitation	44.4 mm (1.7 in)	50 of 100 (Notable)
Kremlin	United States	Record daily snowfall	10.2 cm (4.0 in)	48 of 100 (Notable)
Kalkoenkrans (Pol)	South Africa	Record daily precipitation	33.4 mm (1.3 in)	46 of 100 (Notable)
Haverhill	United States	Record low minimum temperature	-6.1 C (21.0 F)	42 of 100 (Notable)
Hermit 8 SE	United States	Record daily precipitation	69.9 mm (2.8 in)	39 of 100 (Notable)
Waterdale	United States	Record daily snowfall	15.2 cm (6.0 in)	39 of 100 (Notable)
Eagle FAA AP	United States	Record daily snowfall	14.0 cm (5.5 in)	39 of 100 (Notable)
Struishoek	South Africa	Record daily precipitation	51.5 mm (2.0 in)	38 of 100 (Notable)
Pyramid	United States	Record daily snowfall	17.8 cm (7.0 in)	37 of 100 (Notable)
Bridgeport	United States	Record high minimum temperature	6.7 C (44.1 F)	37 of 100 (Notable)
Qunu (Bos)	South Africa	Record daily precipitation	35.0 mm (1.4 in)	36 of 100 (Notable)
Kauffman 4 SSE	United States	Record daily snowfall	5.1 cm (2.0 in)	34 of 100 (Routine)
Lnai Culture & Heritage Ctr	United States	Record high maximum temperature	30.0 C (86.0 F)	33 of 100 (Routine)
Cape St. Francis	South Africa	Record daily precipitation	28.0 mm (1.1 in)	32 of 100 (Routine)
Ventnor	South Africa	Record daily precipitation	44.4 mm (1.7 in)	32 of 100 (Routine)
Den Haag	South Africa	Record daily precipitation	26.5 mm (1.0 in)	32 of 100 (Routine)
Waterdale	United States	Record snow depth	15.2 cm (6.0 in)	32 of 100 (Routine)
Cofimvaba (Tnk)	South Africa	Record daily precipitation	29.0 mm (1.1 in)	31 of 100 (Routine)
Waialua 847	United States	Record high maximum temperature	31.7 C (89.1 F)	31 of 100 (Routine)
Mokpo	Korea, South	Record low minimum temperature	1.8 C (35.2 F)	30 of 100 (Routine)
El Burrero	Mexico	Record high maximum temperature	32.2 C (90.0 F)	30 of 100 (Routine)
Spicer	United States	Record snow depth	15.2 cm (6.0 in)	30 of 100 (Routine)
Keanae 346	United States	Record daily precipitation	449.6 mm (17.7 in)	30 of 100 (Routine)
Sheffield	United Kingdom	Record daily precipitation	25.9 mm (1.0 in)	29 of 100 (Routine)
Arcadia	United States	Record daily precipitation	81.3 mm (3.2 in)	29 of 100 (Routine)
Summit	United States	Record daily precipitation	31.0 mm (1.2 in)	29 of 100 (Routine)
Allenspark 2SE	United States	Record daily snowfall	20.3 cm (8.0 in)	28 of 100 (Routine)
Siwa	Egypt	Record high minimum temperature	17.3 C (63.1 F)	27 of 100 (Routine)
Iwakuni	Japan	Record low minimum temperature	2.8 C (37.0 F)	27 of 100 (Routine)
Goldbutte 7 N	United States	Record daily snowfall	10.2 cm (4.0 in)	27 of 100 (Routine)
Escalante	United States	Record daily snowfall	10.2 cm (4.0 in)	27 of 100 (Routine)
Irapuato	Mexico	Record low minimum temperature	5.6 C (42.1 F)	26 of 100 (Routine)
Cortez	United States	Record high maximum temperature	25.0 C (77.0 F)	26 of 100 (Routine)
Uwajima	Japan	Record low minimum temperature	2.9 C (37.2 F)	25 of 100 (Routine)
Ahuacatlan	Mexico	Record low minimum temperature	8.3 C (46.9 F)	25 of 100 (Routine)
Kantunilkin	Mexico	Record low minimum temperature	11.7 C (53.1 F)	25 of 100 (Routine)
Prospect	South Africa	Record daily precipitation	34.0 mm (1.3 in)	25 of 100 (Routine)
Buxton	United Kingdom	Record daily precipitation	28.4 mm (1.1 in)	25 of 100 (Routine)
Miami Beach	United States	Record high minimum temperature	26.7 C (80.1 F)	25 of 100 (Routine)
Kowanyama Airport	Australia	Record daily precipitation	27.8 mm (1.1 in)	24 of 100 (Routine)
Takamatsu	Japan	Record low minimum temperature	3.2 C (37.8 F)	24 of 100 (Routine)
Salekhard	Russia	Record high minimum temperature	-0.6 C (30.9 F)	24 of 100 (Routine)
Mill Holme	South Africa	Record daily precipitation	48.0 mm (1.9 in)	24 of 100 (Routine)
Kanchanaburi	Thailand	Record high maximum temperature	39.0 C (102.2 F)	24 of 100 (Routine)
Syracuse 1NE	United States	Record high minimum temperature	7.8 C (46.0 F)	24 of 100 (Routine)
Nicosia	Cyprus	Record high minimum temperature	20.4 C (68.7 F)	22 of 100 (Routine)
Iwami Airport	Japan	Record low minimum temperature	3.9 C (39.0 F)	22 of 100 (Routine)
Kochi	Japan	Record low minimum temperature	4.3 C (39.7 F)	22 of 100 (Routine)
Hostotipaquillo	Mexico	Record low minimum temperature	7.8 C (46.0 F)	22 of 100 (Routine)
Rinconada	Mexico	Record low minimum temperature	13.9 C (57.0 F)	22 of 100 (Routine)
Cegcuana (Bos)	South Africa	Record daily precipitation	32.0 mm (1.3 in)	22 of 100 (Routine)
Omaezaki	Japan	Record low minimum temperature	6.4 C (43.5 F)	21 of 100 (Routine)
Iizuka	Japan	Record low minimum temperature	1.3 C (34.3 F)	21 of 100 (Routine)

Counts by Type and Timescale

396 records

Records set or tied on 31 October 1986 by type: Highest daily maximum 27, Lowest daily maximum 28, Highest daily minimum 59, Lowest daily minimum 129, Heaviest daily rainfall 120, Heaviest daily snowfall 26, Deepest snow cover 7.

Records on 31 October 1986 by type
Record type	Records
Highest daily maximum	27
Lowest daily maximum	28
Highest daily minimum	59
Lowest daily minimum	129
Heaviest daily rainfall	120
Heaviest daily snowfall	26
Deepest snow cover	7

Records on 31 October 1986 by timescale: all-time 1, monthly 35, daily 360.

How Much Records Were Beaten By

303 broken records

Margins by which the 303 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 152.0. Ties are not counted.

Top 20 by Significance

31 October 1986

Top 20 records on 31 October 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 October 1986	Nicosia, CY	monthly rain	72.5 mm (2.9 in)	26.8 mm (1.1 in)	84 years	77 of 100 (Major)
31 October 1986	Alexandria (Pol), ZA	daily rain	75.7 mm (3.0 in)	56.6 mm (2.2 in)	68 years	70 of 100 (Major)
31 October 1986	Waterdale, US	daily rain	45.7 mm (1.8 in)	33.8 mm (1.3 in)	65 years	61 of 100 (Major)
31 October 1986	Buena Vista 2S, US	daily rain	30.7 mm (1.2 in)	20.5 mm (0.8 in)	73 years	59 of 100 (Notable)
31 October 1986	Dordrecht - Tnk 14, ZA	daily rain	68.0 mm (2.7 in)	37.5 mm (1.5 in)	19 years	55 of 100 (Notable)
31 October 1986	Overtornea, SE	daily rain	30.3 mm (1.2 in)	16.3 mm (0.6 in)	24 years	53 of 100 (Notable)
31 October 1986	Vallecito Dam, US	daily rain	63.5 mm (2.5 in)	41.7 mm (1.6 in)	24 years	52 of 100 (Notable)
31 October 1986	Steynsburg, ZA	daily rain	44.4 mm (1.7 in)	17.7 mm (0.7 in)	69 years	50 of 100 (Notable)
31 October 1986	Kremlin, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	72 years	48 of 100 (Notable)
31 October 1986	Kalkoenkrans (Pol), ZA	daily rain	33.4 mm (1.3 in)	20.7 mm (0.8 in)	60 years	46 of 100 (Notable)
31 October 1986	Haverhill, US	monthly low min	-6.1 C (21.0 F)	0.5 C (0.9 F)	79 years	42 of 100 (Notable)
31 October 1986	Hermit 8 SE, US	monthly rain	69.9 mm (2.8 in)	15.3 mm (0.6 in)	25 years	39 of 100 (Notable)
31 October 1986	Waterdale, US	daily snowfall	15.2 cm (6.0 in)	7.6 cm (3.0 in)	65 years	39 of 100 (Notable)
31 October 1986	Eagle FAA AP, US	daily snowfall	14.0 cm (5.5 in)	3.8 cm (1.5 in)	76 years	39 of 100 (Notable)
31 October 1986	Struishoek, ZA	daily rain	51.5 mm (2.0 in)	32.5 mm (1.3 in)	29 years	38 of 100 (Notable)
31 October 1986	Pyramid, US	daily snowfall	17.8 cm (7.0 in)	7.6 cm (3.0 in)	67 years	37 of 100 (Notable)
31 October 1986	Bridgeport, US	daily high min	6.7 C (44.1 F)	1.1 C (2.0 F)	86 years	37 of 100 (Notable)
31 October 1986	Qunu (Bos), ZA	daily rain	35.0 mm (1.4 in)	12.6 mm (0.5 in)	60 years	36 of 100 (Notable)
31 October 1986	Kauffman 4 SSE, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	49 years	34 of 100 (Routine)
31 October 1986	Lnai Culture & Heritage Ctr, US	daily high max	30.0 C (86.0 F)	2.2 C (4.0 F)	44 years	33 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

1805 to 1986

Records set or tied on this calendar date in each year from 1805 to 1986. 1986 had 396 records.

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

Records on 10-31 in each year
Year	Records
1805	1
1811	2
1828	1
1836	1
1838	1
1839	1
1841	1
1845	1
1847	2
1848	1
1852	2
1856	1
1865	1
1868	1
1869	3
1873	2
1875	2
1876	1
1877	1
1878	1
1879	1
1880	1
1881	6
1883	1
1884	3
1886	1
1887	2
1888	3
1889	5
1891	3
1892	4
1893	3
1894	5
1895	4
1896	10
1897	1
1898	5
1899	4
1900	5
1901	4
1902	5
1903	5
1904	7
1905	21
1906	38
1907	22
1908	13
1909	15
1910	18
1911	32
1912	14
1913	39
1914	33
1915	11
1916	72
1917	67
1918	72
1919	112
1920	63
1921	22
1922	72
1923	359
1924	244
1925	405
1926	153
1927	183
1928	120
1929	234
1930	240
1931	178
1932	260
1933	796
1934	410
1935	981
1936	307
1937	335
1938	399
1939	415
1940	248
1941	536
1942	578
1943	213
1944	611
1945	287
1946	530
1947	371
1948	695
1949	831
1950	1,237
1951	527
1952	393
1953	303
1954	460
1955	427
1956	1,086
1957	392
1958	314
1959	484
1960	296
1961	511
1962	344
1963	631
1964	538
1965	340
1966	630
1967	748
1968	605
1969	531
1970	412
1971	992
1972	1,234
1973	581
1974	1,192
1975	827
1976	655
1977	616
1978	538
1979	1,130
1980	657
1981	497
1982	560
1983	782
1984	1,054
1985	632
1986	396
1987	1,002
1988	1,058
1989	857
1990	990
1991	3,294
1992	1,324
1993	2,926
1994	1,004
1995	1,051
1996	1,074
1997	1,553
1998	1,410
1999	997
2000	1,114
2001	1,218
2002	1,613
2003	1,167
2004	870
2005	1,048
2006	842
2007	613
2008	1,256
2009	1,030
2010	931
2011	746
2012	884
2013	623
2014	547
2015	691
2016	1,012
2017	437
2018	414
2019	2,501
2020	542
2021	469
2022	497
2023	960
2024	1,133
2025	314

Download the Data

Data for records on 1986-10-31: 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	270
20 to 40	21
40 to 60	7
60 to 80	2
80 to 100	0
100 to 120	2
120 to 140	0
140 to 160	1