Weather Records on 18 October 1986

344 weather records were set or tied worldwide on 18 October 1986. Highest significance: Sonnblick, AT.

Key Facts for 18 October 1986

On 18 October 1986, 344 weather records were set or tied at long-record stations worldwide.
78 were record highs and 123 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 3 monthly and 341 daily.
Sonnblick set a monthly record daily precipitation of 102.5 mm (4.0 in) on 18 October 1986.
Across 167 earlier years (1794 to 2025) the same calendar date averaged 434 records.

Record Map

344 stations

344 station records on 18 October 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 October 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sonnblick	Austria	Record daily precipitation	102.5 mm (4.0 in)	57 of 100 (Notable)
El Burrero	Mexico	Record high maximum temperature	36.7 C (98.1 F)	51 of 100 (Notable)
Dululu Post Office	Australia	Record daily precipitation	55.0 mm (2.2 in)	41 of 100 (Notable)
L F Wade Intl AP Kindley Fld	Bermuda [United Kingdom]	Record daily precipitation	107.4 mm (4.2 in)	37 of 100 (Notable)
Otaru	Japan	Record daily precipitation	49.0 mm (1.9 in)	37 of 100 (Notable)
Adak AP	United States	Record daily precipitation	70.9 mm (2.8 in)	36 of 100 (Notable)
Cerro Azul	Brazil	Record daily precipitation	46.8 mm (1.8 in)	34 of 100 (Routine)
Sonnblick	Austria	Record high maximum temperature	7.3 C (45.1 F)	33 of 100 (Routine)
Stavanger - Valand	Norway	Record daily precipitation	44.6 mm (1.8 in)	30 of 100 (Routine)
Eads	United States	Record high maximum temperature	32.2 C (90.0 F)	30 of 100 (Routine)
Sapporo	Japan	Record daily precipitation	38.0 mm (1.5 in)	29 of 100 (Routine)
Puerto Vallarta	Mexico	Record daily precipitation	100.8 mm (4.0 in)	29 of 100 (Routine)
Verblyding	South Africa	Record daily precipitation	46.0 mm (1.8 in)	29 of 100 (Routine)
Carnegie 5 NE	United States	Record high minimum temperature	20.0 C (68.0 F)	29 of 100 (Routine)
Park City G.C.	United States	Record daily precipitation	26.7 mm (1.1 in)	29 of 100 (Routine)
Banksia Station	Australia	Record daily precipitation	48.2 mm (1.9 in)	27 of 100 (Routine)
Tsurugisan	Japan	Record low maximum temperature	-0.8 C (30.6 F)	27 of 100 (Routine)
Hostotipaquillo	Mexico	Record low minimum temperature	6.7 C (44.1 F)	27 of 100 (Routine)
Cotonou	Benin	Record daily precipitation	82.0 mm (3.2 in)	26 of 100 (Routine)
Ust-Vojampolka	Russia	Record low minimum temperature	-17.0 C (1.4 F)	26 of 100 (Routine)
Becanchen	Mexico	Record low minimum temperature	12.8 C (55.0 F)	25 of 100 (Routine)
Wijk_Aan_Zee_1	Netherlands	Record daily precipitation	25.5 mm (1.0 in)	25 of 100 (Routine)
Soyland I Gjesdal	Norway	Record daily precipitation	70.0 mm (2.8 in)	25 of 100 (Routine)
Pretoria-Waterkloof-Cntry	South Africa	Record daily precipitation	40.5 mm (1.6 in)	25 of 100 (Routine)
Morretes	Brazil	Record daily precipitation	57.2 mm (2.3 in)	24 of 100 (Routine)
Gospic	Croatia	Record low minimum temperature	-5.2 C (22.6 F)	24 of 100 (Routine)
San Miguel Ejutla	Mexico	Record high minimum temperature	18.3 C (64.9 F)	24 of 100 (Routine)
Heeg	Netherlands	Record daily precipitation	26.8 mm (1.1 in)	24 of 100 (Routine)
Ogden Sugar Factory	United States	Record high minimum temperature	10.0 C (50.0 F)	23 of 100 (Routine)
Kaneohe Mauka 781	United States	Record low maximum temperature	25.0 C (77.0 F)	23 of 100 (Routine)
Chetumal (Dge)	Mexico	Record low minimum temperature	17.8 C (64.0 F)	22 of 100 (Routine)
Rivadavia	Argentina	Record low maximum temperature	20.4 C (68.7 F)	21 of 100 (Routine)
Shionomisaki	Japan	Record low maximum temperature	17.2 C (63.0 F)	21 of 100 (Routine)
Carapan	Mexico	Record low maximum temperature	20.0 C (68.0 F)	21 of 100 (Routine)
Churumuco (Cfe)	Mexico	Record high minimum temperature	25.6 C (78.1 F)	21 of 100 (Routine)
Aniak AP	United States	Record snow depth	12.7 cm (5.0 in)	21 of 100 (Routine)
Srinagar	India	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Kirensk	Russia	Record daily precipitation	7.3 mm (0.29 in)	20 of 100 (Routine)
Muloorina Station (Muloorina H	Australia	Record daily precipitation	4.0 mm (0.16 in)	20 of 100 (Routine)
Boolcoomatta	Australia	Record daily precipitation	8.1 mm (0.32 in)	20 of 100 (Routine)
Obdam	Netherlands	Record daily precipitation	23.3 mm (0.9 in)	20 of 100 (Routine)
Minqin	China	Record daily precipitation	8.4 mm (0.33 in)	20 of 100 (Routine)
Howe	United States	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)
Novosibirsk	Russia	Record daily precipitation	15.0 mm (0.6 in)	20 of 100 (Routine)
Bergumerdam	Netherlands	Record daily precipitation	22.8 mm (0.9 in)	20 of 100 (Routine)
Mackay Lost Rvr Rs	United States	Record daily precipitation	4.8 mm (0.19 in)	20 of 100 (Routine)
Hanna	United States	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Narjan Mar	Russia	Record daily precipitation	6.5 mm (0.26 in)	20 of 100 (Routine)
Doomadgee Sharp Street	Australia	Record daily precipitation	9.2 mm (0.36 in)	20 of 100 (Routine)
Navarre	Australia	Record daily precipitation	21.8 mm (0.9 in)	20 of 100 (Routine)
Dalyup Park	Australia	Record daily precipitation	16.2 mm (0.6 in)	20 of 100 (Routine)
Jiuquan	China	Record daily precipitation	2.7 mm (0.11 in)	20 of 100 (Routine)
Duvan	Russia	Record daily precipitation	15.8 mm (0.6 in)	20 of 100 (Routine)
Kalpienung	Australia	Record daily precipitation	14.4 mm (0.6 in)	20 of 100 (Routine)
Kreileroord	Netherlands	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Chilly Barton Flat	United States	Record daily precipitation	5.1 mm (0.20 in)	20 of 100 (Routine)
Ruby Lake Nwr	United States	Record daily precipitation	9.7 mm (0.38 in)	20 of 100 (Routine)
Strathalbyn	Australia	Record daily precipitation	30.0 mm (1.2 in)	20 of 100 (Routine)
Numil Downs Station	Australia	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)
Moyston (Barton Estate)	Australia	Record daily precipitation	12.0 mm (0.5 in)	20 of 100 (Routine)

Counts by Type and Timescale

344 records

Records set or tied on 18 October 1986 by type: Highest daily maximum 30, Lowest daily maximum 61, Highest daily minimum 48, Lowest daily minimum 62, Heaviest daily rainfall 139, Heaviest daily snowfall 3, Deepest snow cover 1.

Records on 18 October 1986 by type
Record type	Records
Highest daily maximum	30
Lowest daily maximum	61
Highest daily minimum	48
Lowest daily minimum	62
Heaviest daily rainfall	139
Heaviest daily snowfall	3
Deepest snow cover	1

Records on 18 October 1986 by timescale: all-time 0, monthly 3, daily 341.

How Much Records Were Beaten By

287 broken records

Margins by which the 287 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 51.0. Ties are not counted.

Top 20 by Significance

18 October 1986

Top 20 records on 18 October 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 October 1986	Sonnblick, AT	monthly rain	102.5 mm (4.0 in)	32.8 mm (1.3 in)	0 years	57 of 100 (Notable)
18 October 1986	El Burrero, MX	daily high max	36.7 C (98.1 F)	9.5 C (17.1 F)	28 years	51 of 100 (Notable)
18 October 1986	Dululu Post Office, AU	daily rain	55.0 mm (2.2 in)	30.6 mm (1.2 in)	40 years	41 of 100 (Notable)
18 October 1986	L F Wade Intl AP Kindley Fld, BM	daily rain	107.4 mm (4.2 in)	47.5 mm (1.9 in)	23 years	37 of 100 (Notable)
18 October 1986	Otaru, JP	daily rain	49.0 mm (1.9 in)	29.1 mm (1.1 in)	19 years	37 of 100 (Notable)
18 October 1986	Adak AP, US	daily rain	70.9 mm (2.8 in)	21.6 mm (0.9 in)	28 years	36 of 100 (Notable)
18 October 1986	Cerro Azul, BR	daily rain	46.8 mm (1.8 in)	24.3 mm (1.0 in)	40 years	34 of 100 (Routine)
18 October 1986	Sonnblick, AT	daily high max	7.3 C (45.1 F)	2.0 C (3.6 F)	64 years	33 of 100 (Routine)
18 October 1986	Stavanger - Valand, NO	daily rain	44.6 mm (1.8 in)	15.4 mm (0.6 in)	16 years	30 of 100 (Routine)
18 October 1986	Eads, US	daily high max	32.2 C (90.0 F)	2.2 C (4.0 F)	64 years	30 of 100 (Routine)
18 October 1986	Sapporo, JP	daily rain	38.0 mm (1.5 in)	21.9 mm (0.9 in)	20 years	29 of 100 (Routine)
18 October 1986	Puerto Vallarta, MX	daily rain	100.8 mm (4.0 in)	40.6 mm (1.6 in)	16 years	29 of 100 (Routine)
18 October 1986	Verblyding, ZA	daily rain	46.0 mm (1.8 in)	26.0 mm (1.0 in)	8 years	29 of 100 (Routine)
18 October 1986	Carnegie 5 NE, US	daily high min	20.0 C (68.0 F)	2.8 C (5.0 F)	60 years	29 of 100 (Routine)
18 October 1986	Park City G.C., US	daily rain	26.7 mm (1.1 in)	5.1 mm (0.20 in)	48 years	29 of 100 (Routine)
18 October 1986	Banksia Station, AU	daily rain	48.2 mm (1.9 in)	21.5 mm (0.8 in)	16 years	27 of 100 (Routine)
18 October 1986	Tsurugisan, JP	daily low max	-0.8 C (30.6 F)	5.6 C (10.1 F)	32 years	27 of 100 (Routine)
18 October 1986	Hostotipaquillo, MX	daily low min	6.7 C (44.1 F)	3.3 C (5.9 F)	31 years	27 of 100 (Routine)
18 October 1986	Cotonou, BJ	daily rain	82.0 mm (3.2 in)	22.7 mm (0.9 in)	32 years	26 of 100 (Routine)
18 October 1986	Ust-Vojampolka, RU	daily low min	-17.0 C (1.4 F)	5.3 C (9.5 F)	32 years	26 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

1794 to 1986

Records set or tied on this calendar date in each year from 1794 to 1986. 1986 had 344 records.

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

Records on 10-18 in each year
Year	Records
1794	1
1796	1
1799	1
1806	1
1807	1
1810	1
1811	2
1817	1
1832	1
1835	1
1836	1
1843	1
1846	2
1848	1
1849	1
1851	1
1852	1
1859	1
1863	1
1865	2
1866	2
1868	1
1869	1
1871	1
1872	1
1874	4
1876	2
1877	2
1879	3
1881	1
1882	1
1883	2
1887	1
1888	1
1890	4
1892	4
1893	1
1894	3
1895	2
1897	6
1898	5
1899	12
1900	5
1901	5
1902	6
1903	9
1904	12
1905	27
1906	17
1907	11
1908	44
1909	23
1910	50
1911	22
1912	12
1913	26
1914	52
1915	12
1916	64
1917	109
1918	24
1919	31
1920	87
1921	87
1922	59
1923	114
1924	151
1925	153
1926	149
1927	309
1928	316
1929	190
1930	507
1931	350
1932	446
1933	264
1934	222
1935	360
1936	483
1937	671
1938	536
1939	475
1940	532
1941	240
1942	332
1943	844
1944	264
1945	398
1946	355
1947	965
1948	1,128
1949	665
1950	996
1951	325
1952	394
1953	678
1954	621
1955	403
1956	578
1957	220
1958	407
1959	246
1960	612
1961	362
1962	252
1963	492
1964	311
1965	1,066
1966	613
1967	405
1968	737
1969	789
1970	501
1971	1,199
1972	1,581
1973	789
1974	746
1975	779
1976	1,326
1977	533
1978	545
1979	555
1980	1,024
1981	680
1982	654
1983	684
1984	1,331
1985	831
1986	344
1987	518
1988	733
1989	1,196
1990	1,043
1991	999
1992	1,295
1993	1,051
1994	1,296
1995	1,227
1996	795
1997	1,240
1998	1,323
1999	773
2000	823
2001	818
2002	878
2003	1,097
2004	1,156
2005	755
2006	1,328
2007	1,298
2008	531
2009	1,546
2010	634
2011	736
2012	741
2013	430
2014	690
2015	915
2016	1,511
2017	590
2018	759
2019	346
2020	957
2021	387
2022	1,334
2023	693
2024	1,142
2025	367

Download the Data

Data for records on 1986-10-18: 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	260
10 to 20	10
20 to 30	11
30 to 40	3
40 to 50	2
50 to 60	1