Weather Records on 30 October 1986

422 weather records were set or tied worldwide on 30 October 1986. Highest significance: Irvinebank, AU.

Key Facts for 30 October 1986

On 30 October 1986, 422 weather records were set or tied at long-record stations worldwide.
106 were record highs and 165 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 25 monthly and 397 daily.
Irvinebank set a daily record precipitation of 45.0 mm (1.8 in) on 30 October 1986.
Across 153 earlier years (1799 to 2025) the same calendar date averaged 491 records.

Record Map

422 stations

422 station records on 30 October 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 October 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Irvinebank	Australia	Record daily precipitation	45.0 mm (1.8 in)	59 of 100 (Notable)
Lake City 2 E	United States	Record daily precipitation	54.1 mm (2.1 in)	58 of 100 (Notable)
Yabulu Qld Nickel	Australia	Record daily precipitation	111.0 mm (4.4 in)	56 of 100 (Notable)
Glentana	Australia	Record daily precipitation	40.0 mm (1.6 in)	55 of 100 (Notable)
Macknade Sugar Mill	Australia	Record daily precipitation	51.2 mm (2.0 in)	54 of 100 (Notable)
Opsoek (Pos)	South Africa	Record daily precipitation	60.2 mm (2.4 in)	53 of 100 (Notable)
Welgeleven	South Africa	Record daily precipitation	40.0 mm (1.6 in)	50 of 100 (Notable)
Oak Park Station	Australia	Record daily precipitation	67.0 mm (2.6 in)	49 of 100 (Notable)
Klipspruit (Pur)	South Africa	Record daily precipitation	70.0 mm (2.8 in)	48 of 100 (Notable)
Nellore	India	Record daily precipitation	244.1 mm (9.6 in)	44 of 100 (Notable)
Calitzdorp (Dam)	South Africa	Record daily precipitation	29.4 mm (1.2 in)	44 of 100 (Notable)
Matjiesrivier (Skl)	South Africa	Record daily precipitation	38.5 mm (1.5 in)	44 of 100 (Notable)
Schweizer-Reneke (Pol)	South Africa	Record daily precipitation	33.5 mm (1.3 in)	44 of 100 (Notable)
Lourensgeluk	South Africa	Record daily precipitation	52.0 mm (2.0 in)	44 of 100 (Notable)
Risnes I Fjotland	Norway	Record daily precipitation	62.0 mm (2.4 in)	43 of 100 (Notable)
Halifax Macrossan St	Australia	Record daily precipitation	34.8 mm (1.4 in)	41 of 100 (Notable)
Cape St. Francis	South Africa	Record daily precipitation	32.0 mm (1.3 in)	40 of 100 (Notable)
Heilbron "Smoordrif"	South Africa	Record daily precipitation	25.0 mm (1.0 in)	38 of 100 (Notable)
Vryburg	South Africa	Record daily precipitation	30.5 mm (1.2 in)	38 of 100 (Notable)
El Chico	Mexico	Record low minimum temperature	0.6 C (33.1 F)	37 of 100 (Notable)
Rietpan II	South Africa	Record daily precipitation	29.5 mm (1.2 in)	37 of 100 (Notable)
Adin Rs	United States	Record high minimum temperature	3.3 C (37.9 F)	37 of 100 (Notable)
Cross City 1 E	United States	Record daily precipitation	50.8 mm (2.0 in)	36 of 100 (Notable)
Porthill	United States	Record high minimum temperature	7.8 C (46.0 F)	36 of 100 (Notable)
Albertinia (Pol)	South Africa	Record daily precipitation	34.1 mm (1.3 in)	35 of 100 (Notable)
Jasper	United States	Record daily precipitation	60.2 mm (2.4 in)	35 of 100 (Notable)
Mossman Post Office	Australia	Record daily precipitation	42.2 mm (1.7 in)	34 of 100 (Routine)
El Salto (Smn)	Mexico	Record low maximum temperature	11.7 C (53.1 F)	34 of 100 (Routine)
Barrydale (Pol)	South Africa	Record daily precipitation	45.0 mm (1.8 in)	34 of 100 (Routine)
Groenvlei	South Africa	Record daily precipitation	49.5 mm (1.9 in)	34 of 100 (Routine)
Mt Hebron Rs	United States	Record high minimum temperature	3.3 C (37.9 F)	34 of 100 (Routine)
Concordia (Bos)	South Africa	Record daily precipitation	25.0 mm (1.0 in)	33 of 100 (Routine)
Den Haag	South Africa	Record daily precipitation	49.5 mm (1.9 in)	32 of 100 (Routine)
Hetch Hetchy	United States	Record high minimum temperature	10.6 C (51.1 F)	31 of 100 (Routine)
Waycross 4 NE	United States	Record daily precipitation	29.0 mm (1.1 in)	31 of 100 (Routine)
Toliman	Mexico	Record high minimum temperature	17.8 C (64.0 F)	29 of 100 (Routine)
Springvalley	South Africa	Record daily precipitation	27.0 mm (1.1 in)	29 of 100 (Routine)
Atakpane	Togo	Record daily precipitation	59.9 mm (2.4 in)	29 of 100 (Routine)
Paysandu	Uruguay	Record daily precipitation	104.0 mm (4.1 in)	29 of 100 (Routine)
Mascota (Smn)	Mexico	Record low maximum temperature	23.9 C (75.0 F)	28 of 100 (Routine)
Svyatoy Nos;Cape(Closed)	Russia	Record high minimum temperature	4.8 C (40.6 F)	28 of 100 (Routine)
Venice	United States	Record daily precipitation	37.6 mm (1.5 in)	28 of 100 (Routine)
Mercedes	Uruguay	Record daily precipitation	52.0 mm (2.0 in)	28 of 100 (Routine)
Excelsior (Mun)	South Africa	Record daily precipitation	36.0 mm (1.4 in)	27 of 100 (Routine)
Williams 1 NW	United States	Record daily precipitation	34.5 mm (1.4 in)	27 of 100 (Routine)
Mascote	Brazil	Record daily precipitation	41.4 mm (1.6 in)	26 of 100 (Routine)
Teriberka	Russia	Record high minimum temperature	4.7 C (40.5 F)	26 of 100 (Routine)
Jonkersberg (Bos)	South Africa	Record daily precipitation	30.0 mm (1.2 in)	26 of 100 (Routine)
Kissimmee 2	United States	Record daily precipitation	55.1 mm (2.2 in)	26 of 100 (Routine)
Villa Guerrero	Mexico	Record low minimum temperature	0.6 C (33.1 F)	24 of 100 (Routine)
Kykrug	South Africa	Record daily precipitation	31.0 mm (1.2 in)	24 of 100 (Routine)
Ventnor	South Africa	Record daily precipitation	30.0 mm (1.2 in)	24 of 100 (Routine)
Anacortes	United States	Record high minimum temperature	10.6 C (51.1 F)	24 of 100 (Routine)
Yarrabah Comm Council	Australia	Record daily precipitation	31.6 mm (1.2 in)	23 of 100 (Routine)
Wanyuan	China	Record low minimum temperature	0.1 C (32.2 F)	23 of 100 (Routine)
Roldal	Norway	Record daily precipitation	48.4 mm (1.9 in)	23 of 100 (Routine)
Kleinfontein	South Africa	Record daily precipitation	26.0 mm (1.0 in)	23 of 100 (Routine)
Nakhon Ratchasima	Thailand	Record daily precipitation	41.9 mm (1.6 in)	23 of 100 (Routine)
Arcadia	United States	Record daily precipitation	31.8 mm (1.3 in)	23 of 100 (Routine)
Mayo	United States	Record daily precipitation	127.5 mm (5.0 in)	23 of 100 (Routine)

Counts by Type and Timescale

422 records

Records set or tied on 30 October 1986 by type: Highest daily maximum 35, Lowest daily maximum 50, Highest daily minimum 71, Lowest daily minimum 115, Heaviest daily rainfall 148, Heaviest daily snowfall 3.

Records on 30 October 1986 by type
Record type	Records
Highest daily maximum	35
Lowest daily maximum	50
Highest daily minimum	71
Lowest daily minimum	115
Heaviest daily rainfall	148
Heaviest daily snowfall	3
Deepest snow cover	0

Records on 30 October 1986 by timescale: all-time 0, monthly 25, daily 397.

How Much Records Were Beaten By

336 broken records

Margins by which the 336 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 107.4. Ties are not counted.

Top 20 by Significance

30 October 1986

Top 20 records on 30 October 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 October 1986	Irvinebank, AU	daily rain	45.0 mm (1.8 in)	39.4 mm (1.6 in)	41 years	59 of 100 (Notable)
30 October 1986	Lake City 2 E, US	daily rain	54.1 mm (2.1 in)	42.9 mm (1.7 in)	91 years	58 of 100 (Notable)
30 October 1986	Yabulu Qld Nickel, AU	daily rain	111.0 mm (4.4 in)	107.4 mm (4.2 in)	33 years	56 of 100 (Notable)
30 October 1986	Glentana, AU	daily rain	40.0 mm (1.6 in)	31.9 mm (1.3 in)	56 years	55 of 100 (Notable)
30 October 1986	Macknade Sugar Mill, AU	daily rain	51.2 mm (2.0 in)	33.2 mm (1.3 in)	72 years	54 of 100 (Notable)
30 October 1986	Opsoek (Pos), ZA	daily rain	60.2 mm (2.4 in)	50.2 mm (2.0 in)	24 years	53 of 100 (Notable)
30 October 1986	Welgeleven, ZA	daily rain	40.0 mm (1.6 in)	32.9 mm (1.3 in)	36 years	50 of 100 (Notable)
30 October 1986	Oak Park Station, AU	daily rain	67.0 mm (2.6 in)	43.4 mm (1.7 in)	31 years	49 of 100 (Notable)
30 October 1986	Klipspruit (Pur), ZA	daily rain	70.0 mm (2.8 in)	34.0 mm (1.3 in)	24 years	48 of 100 (Notable)
30 October 1986	Nellore, IN	daily rain	244.1 mm (9.6 in)	63.8 mm (2.5 in)	65 years	44 of 100 (Notable)
30 October 1986	Calitzdorp (Dam), ZA	daily rain	29.4 mm (1.2 in)	19.2 mm (0.8 in)	44 years	44 of 100 (Notable)
30 October 1986	Matjiesrivier (Skl), ZA	daily rain	38.5 mm (1.5 in)	30.0 mm (1.2 in)	23 years	44 of 100 (Notable)
30 October 1986	Schweizer-Reneke (Pol), ZA	daily rain	33.5 mm (1.3 in)	23.3 mm (0.9 in)	48 years	44 of 100 (Notable)
30 October 1986	Lourensgeluk, ZA	daily rain	52.0 mm (2.0 in)	37.5 mm (1.5 in)	0 years	44 of 100 (Notable)
30 October 1986	Risnes I Fjotland, NO	daily rain	62.0 mm (2.4 in)	10.0 mm (0.4 in)	87 years	43 of 100 (Notable)
30 October 1986	Halifax Macrossan St, AU	daily rain	34.8 mm (1.4 in)	18.3 mm (0.7 in)	72 years	41 of 100 (Notable)
30 October 1986	Cape St. Francis, ZA	daily rain	32.0 mm (1.3 in)	15.0 mm (0.6 in)	48 years	40 of 100 (Notable)
30 October 1986	Heilbron "Smoordrif", ZA	daily rain	25.0 mm (1.0 in)	10.8 mm (0.4 in)	68 years	38 of 100 (Notable)
30 October 1986	Vryburg, ZA	daily rain	30.5 mm (1.2 in)	17.3 mm (0.7 in)	35 years	38 of 100 (Notable)
30 October 1986	El Chico, MX	daily low min	0.6 C (33.1 F)	3.3 C (5.9 F)	61 years	37 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

1799 to 1986

Records set or tied on this calendar date in each year from 1799 to 1986. 1986 had 422 records.

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

Records on 10-30 in each year
Year	Records
1799	1
1815	1
1837	1
1839	1
1841	1
1849	1
1856	1
1866	1
1867	1
1869	5
1870	1
1871	1
1873	2
1877	1
1881	4
1885	3
1886	2
1887	1
1888	1
1889	3
1890	4
1891	2
1892	3
1894	7
1896	4
1897	2
1898	2
1899	2
1900	3
1901	9
1902	6
1903	3
1904	1
1905	12
1906	25
1907	12
1908	14
1909	15
1910	22
1911	19
1912	28
1913	38
1914	22
1915	39
1916	23
1917	85
1918	189
1919	80
1920	73
1921	31
1922	108
1923	202
1924	246
1925	755
1926	131
1927	259
1928	195
1929	277
1930	228
1931	144
1932	181
1933	454
1934	198
1935	739
1936	253
1937	496
1938	245
1939	240
1940	251
1941	393
1942	877
1943	255
1944	497
1945	446
1946	826
1947	252
1948	326
1949	528
1950	1,186
1951	373
1952	635
1953	522
1954	276
1955	494
1956	716
1957	531
1958	366
1959	859
1960	258
1961	781
1962	382
1963	353
1964	488
1965	439
1966	490
1967	665
1968	555
1969	656
1970	636
1971	1,663
1972	902
1973	534
1974	1,039
1975	427
1976	760
1977	882
1978	359
1979	809
1980	885
1981	547
1982	534
1983	549
1984	1,270
1985	848
1986	422
1987	883
1988	972
1989	904
1990	685
1991	2,772
1992	1,228
1993	2,095
1994	777
1995	831
1996	1,299
1997	1,033
1998	771
1999	897
2000	1,659
2001	1,233
2002	1,564
2003	973
2004	1,188
2005	1,144
2006	886
2007	773
2008	1,310
2009	1,513
2010	619
2011	1,022
2012	1,413
2013	622
2014	297
2015	395
2016	981
2017	783
2018	507
2019	1,931
2020	683
2021	486
2022	762
2023	969
2024	1,393
2025	322

Download the Data

Data for records on 1986-10-30: 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	311
20 to 40	18
40 to 60	5
60 to 80	1
80 to 100	0
100 to 120	1