Weather Records on 27 October 1986

531 weather records were set or tied worldwide on 27 October 1986. Highest significance: Mafeteng, LS.

Key Facts for 27 October 1986

On 27 October 1986, 531 weather records were set or tied at long-record stations worldwide.
237 were record highs and 98 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 12 monthly and 518 daily.
Mafeteng set an all-time record daily precipitation of 168.0 mm (6.6 in) on 27 October 1986.
Across 159 earlier years (1802 to 2025) the same calendar date averaged 478 records.

Record Map

531 stations

531 station records on 27 October 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 October 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mafeteng	Lesotho	Record daily precipitation	168.0 mm (6.6 in)	85 of 100 (Exceptional)
Jhb-Braamfontein (Cem)	South Africa	Record daily precipitation	64.5 mm (2.5 in)	66 of 100 (Major)
Springkell	South Africa	Record daily precipitation	76.0 mm (3.0 in)	66 of 100 (Major)
Jhb-Zoological Garden	South Africa	Record daily precipitation	68.5 mm (2.7 in)	64 of 100 (Major)
Hopelchen	Mexico	Record daily precipitation	84.8 mm (3.3 in)	51 of 100 (Notable)
Cofimvaba (Tnk)	South Africa	Record daily precipitation	30.5 mm (1.2 in)	49 of 100 (Notable)
Mataranka Homestead Resort	Australia	Record daily precipitation	62.0 mm (2.4 in)	47 of 100 (Notable)
Tampak	Mexico	Record daily precipitation	72.4 mm (2.9 in)	47 of 100 (Notable)
Mtn Lake	United States	Record daily precipitation	62.7 mm (2.5 in)	47 of 100 (Notable)
Tonti (Bos)	South Africa	Record daily precipitation	46.5 mm (1.8 in)	46 of 100 (Notable)
Venice	United States	Record daily precipitation	76.2 mm (3.0 in)	45 of 100 (Notable)
Cologne	South Africa	Record daily precipitation	56.0 mm (2.2 in)	44 of 100 (Notable)
Beerlaagte	South Africa	Record daily precipitation	52.5 mm (2.1 in)	43 of 100 (Notable)
W Chester 2 NW	United States	Record daily precipitation	27.9 mm (1.1 in)	42 of 100 (Notable)
Dublin Phoenix Park	Ireland	Record high maximum temperature	18.6 C (65.5 F)	41 of 100 (Notable)
Ingenio Catmis	Mexico	Record daily precipitation	48.3 mm (1.9 in)	41 of 100 (Notable)
Saint Maries	United States	Record high minimum temperature	10.6 C (51.1 F)	40 of 100 (Notable)
Mt Douglas	Australia	Record daily precipitation	41.2 mm (1.6 in)	39 of 100 (Notable)
Monte Carmelo	Brazil	Record daily precipitation	58.0 mm (2.3 in)	38 of 100 (Notable)
Hoopdal (Pol)	South Africa	Record daily precipitation	51.0 mm (2.0 in)	38 of 100 (Notable)
Chester	United States	Record high minimum temperature	8.3 C (46.9 F)	38 of 100 (Notable)
Suphan Buri	Thailand	Record daily precipitation	71.9 mm (2.8 in)	37 of 100 (Notable)
Napa State Hospital	United States	Record high minimum temperature	16.1 C (61.0 F)	37 of 100 (Notable)
Harkerville (Bos)	South Africa	Record daily precipitation	35.7 mm (1.4 in)	36 of 100 (Notable)
Jhb-Royal Golf Club	South Africa	Record daily precipitation	70.7 mm (2.8 in)	36 of 100 (Notable)
Leslie (Mun)	South Africa	Record daily precipitation	59.5 mm (2.3 in)	36 of 100 (Notable)
Darrington Rs	United States	Record daily precipitation	76.2 mm (3.0 in)	36 of 100 (Notable)
Slatteroy Fyr	Norway	Record daily precipitation	35.0 mm (1.4 in)	35 of 100 (Notable)
Vladivostok	Russia	Record low minimum temperature	-10.3 C (13.5 F)	35 of 100 (Notable)
Insizwa (Bos)	South Africa	Record daily precipitation	39.0 mm (1.5 in)	35 of 100 (Notable)
Florisbad	South Africa	Record daily precipitation	51.0 mm (2.0 in)	35 of 100 (Notable)
Pomeroy	United States	Record high minimum temperature	11.1 C (52.0 F)	35 of 100 (Notable)
Pismo Beach	United States	Record low minimum temperature	-2.8 C (27.0 F)	34 of 100 (Routine)
Kareepan	South Africa	Record daily precipitation	38.0 mm (1.5 in)	33 of 100 (Routine)
Anaconda	United States	Record high minimum temperature	6.7 C (44.1 F)	33 of 100 (Routine)
Castlereagh (Castlereagh Road)	Australia	Record daily precipitation	31.0 mm (1.2 in)	32 of 100 (Routine)
Elandspoort	South Africa	Record daily precipitation	44.0 mm (1.7 in)	32 of 100 (Routine)
Bartow 1SE	United States	Record daily precipitation	35.6 mm (1.4 in)	32 of 100 (Routine)
Mtn Home	United States	Record high minimum temperature	11.7 C (53.1 F)	32 of 100 (Routine)
Dayton 1 WSW	United States	Record high maximum temperature	26.7 C (80.1 F)	32 of 100 (Routine)
Randle 1 E	United States	Record daily precipitation	51.6 mm (2.0 in)	32 of 100 (Routine)
San Felipe	Mexico	Record low maximum temperature	23.9 C (75.0 F)	31 of 100 (Routine)
El Burrero	Mexico	Record high maximum temperature	32.2 C (90.0 F)	31 of 100 (Routine)
Wauchula	United States	Record daily precipitation	33.0 mm (1.3 in)	31 of 100 (Routine)
Emblem	United States	Record high minimum temperature	3.9 C (39.0 F)	31 of 100 (Routine)
Tapalpa (Smn)	Mexico	Record low minimum temperature	3.9 C (39.0 F)	30 of 100 (Routine)
Mata de Limones	Mexico	Record daily precipitation	51.8 mm (2.0 in)	30 of 100 (Routine)
Obrestad Fyr	Norway	Record daily precipitation	35.6 mm (1.4 in)	30 of 100 (Routine)
Chico UNIV Farm	United States	Record high minimum temperature	14.4 C (57.9 F)	30 of 100 (Routine)
Orovada 3 W	United States	Record high minimum temperature	7.8 C (46.0 F)	30 of 100 (Routine)
Hat Creek	United States	Record high minimum temperature	8.9 C (48.0 F)	29 of 100 (Routine)
Headworks Portland Wtr B	United States	Record high minimum temperature	11.1 C (52.0 F)	29 of 100 (Routine)
Coalcoman (Smn)	Mexico	Record low minimum temperature	7.8 C (46.0 F)	28 of 100 (Routine)
Aberdeen	United States	Record high minimum temperature	12.8 C (55.0 F)	28 of 100 (Routine)
Hanford 1 S	United States	Record high minimum temperature	12.8 C (55.0 F)	27 of 100 (Routine)
Woodland 1 WNW	United States	Record high minimum temperature	13.3 C (55.9 F)	27 of 100 (Routine)
Ola 4 S	United States	Record high minimum temperature	11.1 C (52.0 F)	27 of 100 (Routine)
Antonio Escobedo (Smn)	Mexico	Record low maximum temperature	20.0 C (68.0 F)	25 of 100 (Routine)
San Pedro	Mexico	Record daily precipitation	77.0 mm (3.0 in)	25 of 100 (Routine)
Ladybrand (Skl)	South Africa	Record daily precipitation	29.5 mm (1.2 in)	25 of 100 (Routine)

Counts by Type and Timescale

531 records

Records set or tied on 27 October 1986 by type: Highest daily maximum 46, Lowest daily maximum 52, Highest daily minimum 191, Lowest daily minimum 46, Heaviest daily rainfall 195, Deepest snow cover 1.

Records on 27 October 1986 by type
Record type	Records
Highest daily maximum	46
Lowest daily maximum	52
Highest daily minimum	191
Lowest daily minimum	46
Heaviest daily rainfall	195
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 27 October 1986 by timescale: all-time 1, monthly 12, daily 518.

How Much Records Were Beaten By

412 broken records

Margins by which the 412 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 78.4. Ties are not counted.

Top 20 by Significance

27 October 1986

Top 20 records on 27 October 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 October 1986	Mafeteng, LS	all-time rain	168.0 mm (6.6 in)	63.4 mm (2.5 in)	63 years	85 of 100 (Exceptional)
27 October 1986	Jhb-Braamfontein (Cem), ZA	daily rain	64.5 mm (2.5 in)	38.1 mm (1.5 in)	71 years	66 of 100 (Major)
27 October 1986	Springkell, ZA	daily rain	76.0 mm (3.0 in)	44.2 mm (1.7 in)	71 years	66 of 100 (Major)
27 October 1986	Jhb-Zoological Garden, ZA	daily rain	68.5 mm (2.7 in)	43.4 mm (1.7 in)	59 years	64 of 100 (Major)
27 October 1986	Hopelchen, MX	daily rain	84.8 mm (3.3 in)	78.4 mm (3.1 in)	24 years	51 of 100 (Notable)
27 October 1986	Cofimvaba (Tnk), ZA	daily rain	30.5 mm (1.2 in)	13.7 mm (0.5 in)	86 years	49 of 100 (Notable)
27 October 1986	Mataranka Homestead Resort, AU	monthly rain	62.0 mm (2.4 in)	21.1 mm (0.8 in)	30 years	47 of 100 (Notable)
27 October 1986	Tampak, MX	daily rain	72.4 mm (2.9 in)	52.6 mm (2.1 in)	31 years	47 of 100 (Notable)
27 October 1986	Mtn Lake, US	daily rain	62.7 mm (2.5 in)	58.1 mm (2.3 in)	16 years	47 of 100 (Notable)
27 October 1986	Tonti (Bos), ZA	daily rain	46.5 mm (1.8 in)	21.1 mm (0.8 in)	71 years	46 of 100 (Notable)
27 October 1986	Venice, US	daily rain	76.2 mm (3.0 in)	60.7 mm (2.4 in)	1 year	45 of 100 (Notable)
27 October 1986	Cologne, ZA	daily rain	56.0 mm (2.2 in)	32.5 mm (1.3 in)	21 years	44 of 100 (Notable)
27 October 1986	Beerlaagte, ZA	daily rain	52.5 mm (2.1 in)	15.9 mm (0.6 in)	68 years	43 of 100 (Notable)
27 October 1986	W Chester 2 NW, US	daily rain	27.9 mm (1.1 in)	14.9 mm (0.6 in)	79 years	42 of 100 (Notable)
27 October 1986	Dublin Phoenix Park, IE	daily high max	18.6 C (65.5 F)	0.7 C (1.3 F)	97 years	41 of 100 (Notable)
27 October 1986	Ingenio Catmis, MX	daily rain	48.3 mm (1.9 in)	43.7 mm (1.7 in)	16 years	41 of 100 (Notable)
27 October 1986	Saint Maries, US	daily high min	10.6 C (51.1 F)	2.8 C (5.0 F)	80 years	40 of 100 (Notable)
27 October 1986	Mt Douglas, AU	daily rain	41.2 mm (1.6 in)	28.8 mm (1.1 in)	33 years	39 of 100 (Notable)
27 October 1986	Monte Carmelo, BR	daily rain	58.0 mm (2.3 in)	32.6 mm (1.3 in)	43 years	38 of 100 (Notable)
27 October 1986	Hoopdal (Pol), ZA	daily rain	51.0 mm (2.0 in)	31.5 mm (1.2 in)	29 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

1802 to 1986

Records set or tied on this calendar date in each year from 1802 to 1986. 1986 had 531 records.

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

Records on 10-27 in each year
Year	Records
1802	1
1807	1
1816	1
1831	1
1838	1
1840	1
1841	2
1847	2
1849	2
1856	2
1861	1
1866	4
1869	4
1870	2
1871	2
1873	1
1874	2
1876	1
1878	1
1880	2
1881	2
1885	2
1886	2
1887	5
1888	3
1889	1
1890	2
1892	3
1893	2
1894	2
1895	3
1896	2
1898	4
1899	14
1900	9
1901	5
1902	8
1903	23
1904	6
1905	11
1906	11
1907	9
1908	16
1909	13
1910	14
1911	20
1912	42
1913	91
1914	54
1915	65
1916	28
1917	45
1918	77
1919	74
1920	98
1921	37
1922	97
1923	63
1924	104
1925	383
1926	176
1927	521
1928	162
1929	92
1930	158
1931	241
1932	319
1933	313
1934	173
1935	266
1936	725
1937	477
1938	160
1939	836
1940	605
1941	409
1942	629
1943	479
1944	519
1945	674
1946	450
1947	551
1948	160
1949	182
1950	603
1951	269
1952	640
1953	285
1954	493
1955	578
1956	339
1957	1,116
1958	163
1959	376
1960	180
1961	428
1962	704
1963	798
1964	294
1965	284
1966	256
1967	485
1968	436
1969	532
1970	1,071
1971	1,157
1972	694
1973	719
1974	384
1975	424
1976	1,387
1977	608
1978	593
1979	553
1980	1,148
1981	1,076
1982	793
1983	707
1984	1,183
1985	592
1986	531
1987	863
1988	829
1989	1,506
1990	441
1991	1,722
1992	703
1993	667
1994	894
1995	1,238
1996	1,651
1997	2,783
1998	1,696
1999	991
2000	832
2001	1,100
2002	1,040
2003	1,669
2004	1,546
2005	897
2006	1,442
2007	950
2008	650
2009	954
2010	1,676
2011	690
2012	991
2013	706
2014	973
2015	395
2016	761
2017	582
2018	701
2019	1,364
2020	2,886
2021	536
2022	657
2023	1,668
2024	694
2025	524

Download the Data

Data for records on 1986-10-27: 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 10	353
10 to 20	29
20 to 30	14
30 to 40	7
40 to 50	3
50 to 60	3
60 to 70	2
70 to 80	1