Weather Records on 4 October 1986

1,265 weather records were set or tied worldwide on 4 October 1986. Highest significance: Crane, US.

Key Facts for 4 October 1986

On 4 October 1986, 1,265 weather records were set or tied at long-record stations worldwide.
599 were record highs and 138 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 166 monthly and 1,094 daily.
Crane set a monthly record daily precipitation of 104.1 mm (4.1 in) on 4 October 1986.
Across 160 earlier years (1795 to 2026) the same calendar date averaged 460 records.

Record Map

1,265 stations

1,265 station records on 4 October 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 October 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Crane	United States	Record daily precipitation	104.1 mm (4.1 in)	72 of 100 (Major)
Arcade	United States	Record daily precipitation	39.9 mm (1.6 in)	70 of 100 (Major)
Toledo Blade	United States	Record daily precipitation	51.3 mm (2.0 in)	69 of 100 (Major)
McCamey	United States	Record daily precipitation	231.9 mm (9.1 in)	68 of 100 (Major)
St Charles Elm Pt	United States	Record daily precipitation	86.1 mm (3.4 in)	65 of 100 (Major)
Wauseon Wtp	United States	Record daily precipitation	45.5 mm (1.8 in)	64 of 100 (Major)
Greenville Wtp	United States	Record daily precipitation	70.1 mm (2.8 in)	58 of 100 (Notable)
Hamlin 1SW	United States	Record daily precipitation	95.8 mm (3.8 in)	58 of 100 (Notable)
Maranboy	Australia	Record daily precipitation	53.2 mm (2.1 in)	57 of 100 (Notable)
Tipp City	United States	Record daily precipitation	66.0 mm (2.6 in)	57 of 100 (Notable)
Creekside	United States	Record daily precipitation	74.7 mm (2.9 in)	56 of 100 (Notable)
Pine Islet Lighthouse	Australia	Record daily precipitation	66.2 mm (2.6 in)	55 of 100 (Notable)
Put-In-Bay	United States	Record daily precipitation	38.1 mm (1.5 in)	55 of 100 (Notable)
Meadville 1 S	United States	Record daily precipitation	72.4 mm (2.9 in)	54 of 100 (Notable)
Mt Olive 1 E	United States	Record daily precipitation	68.8 mm (2.7 in)	53 of 100 (Notable)
Greencastle 1 W	United States	Record daily precipitation	94.7 mm (3.7 in)	53 of 100 (Notable)
Alexandria 4 WSW	United States	Record daily precipitation	78.7 mm (3.1 in)	53 of 100 (Notable)
Bradford Cntrl Fs	United States	Record daily precipitation	44.5 mm (1.8 in)	52 of 100 (Notable)
Minchumina	United States	Record daily snowfall	15.2 cm (6.0 in)	52 of 100 (Notable)
Plaisance (Mauritiu	Mauritius	Record daily precipitation	60.9 mm (2.4 in)	51 of 100 (Notable)
Hermann	United States	Record daily precipitation	74.4 mm (2.9 in)	51 of 100 (Notable)
Urbana Wrf	United States	Record daily precipitation	77.5 mm (3.1 in)	51 of 100 (Notable)
Carrolltown 1 NNE	United States	Record daily precipitation	66.0 mm (2.6 in)	51 of 100 (Notable)
Kane 1NNE	United States	Record daily precipitation	51.8 mm (2.0 in)	51 of 100 (Notable)
Warren	United States	Record daily precipitation	43.2 mm (1.7 in)	51 of 100 (Notable)
Charleston	United States	Record daily precipitation	70.9 mm (2.8 in)	50 of 100 (Notable)
W Manchester 3 WSW	United States	Record daily precipitation	63.2 mm (2.5 in)	50 of 100 (Notable)
Aniak AP	United States	Record daily snowfall	12.2 cm (4.8 in)	50 of 100 (Notable)
Tylden "Tulden"	South Africa	Record daily precipitation	57.5 mm (2.3 in)	49 of 100 (Notable)
Oaklandon Geist Rsvr	United States	Record daily precipitation	61.0 mm (2.4 in)	49 of 100 (Notable)
Eldon	United States	Record daily precipitation	77.2 mm (3.0 in)	49 of 100 (Notable)
Pana	United States	Record daily precipitation	69.9 mm (2.8 in)	48 of 100 (Notable)
New Castle 3 SW	United States	Record daily precipitation	83.1 mm (3.3 in)	48 of 100 (Notable)
Union	United States	Record daily precipitation	57.4 mm (2.3 in)	48 of 100 (Notable)
Brakfontein	South Africa	Record daily precipitation	32.0 mm (1.3 in)	47 of 100 (Notable)
Alton - Melvin Price L&D	United States	Record daily precipitation	88.9 mm (3.5 in)	47 of 100 (Notable)
Greenup 3SE	United States	Record daily precipitation	63.8 mm (2.5 in)	47 of 100 (Notable)
Coudersport 4 NW	United States	Record daily precipitation	44.2 mm (1.7 in)	47 of 100 (Notable)
Laurel 3 W	United States	Record high minimum temperature	21.7 C (71.1 F)	46 of 100 (Notable)
Piqua	United States	Record daily precipitation	59.9 mm (2.4 in)	46 of 100 (Notable)
Stanthorpe Leslie Parade	Australia	Record daily precipitation	50.2 mm (2.0 in)	45 of 100 (Notable)
Sarelsrivier	South Africa	Record daily precipitation	26.0 mm (1.0 in)	45 of 100 (Notable)
Clarence	United States	Record daily precipitation	58.7 mm (2.3 in)	45 of 100 (Notable)
Garden City	United States	Record daily precipitation	132.1 mm (5.2 in)	45 of 100 (Notable)
Morgantown Muni AP	United States	Record daily precipitation	43.2 mm (1.7 in)	45 of 100 (Notable)
Jesus Maria (Smn)	Mexico	Record daily precipitation	30.0 mm (1.2 in)	44 of 100 (Notable)
Indiana 3 SE	United States	Record daily precipitation	55.4 mm (2.2 in)	44 of 100 (Notable)
Paso del Cuarenta I	Mexico	Record daily precipitation	31.2 mm (1.2 in)	43 of 100 (Notable)
Oolitic Purdue Ex Fm	United States	Record daily precipitation	51.3 mm (2.0 in)	43 of 100 (Notable)
Williams 3 SW	United States	Record daily precipitation	48.0 mm (1.9 in)	43 of 100 (Notable)
Westerville	United States	Record daily precipitation	67.1 mm (2.6 in)	43 of 100 (Notable)
Negley 4 SSW	United States	Record daily precipitation	97.8 mm (3.9 in)	43 of 100 (Notable)
Moorefield 1 SSE	United States	Record high minimum temperature	24.4 C (75.9 F)	43 of 100 (Notable)
Troy	United States	Record daily precipitation	45.7 mm (1.8 in)	42 of 100 (Notable)
Delaware	United States	Record daily precipitation	39.9 mm (1.6 in)	42 of 100 (Notable)
Pleasant Hill	United States	Record daily precipitation	75.7 mm (3.0 in)	42 of 100 (Notable)
Confluence 1 SW Dam	United States	Record daily precipitation	50.0 mm (2.0 in)	42 of 100 (Notable)
Raymond	United States	Record daily precipitation	45.7 mm (1.8 in)	42 of 100 (Notable)
Tanana AP	United States	Record daily snowfall	9.4 cm (3.7 in)	42 of 100 (Notable)
Monticello Muni AP	United States	Record high maximum temperature	34.4 C (93.9 F)	42 of 100 (Notable)

Counts by Type and Timescale

1,265 records

Records set or tied on 4 October 1986 by type: Highest daily maximum 160, Lowest daily maximum 85, Highest daily minimum 439, Lowest daily minimum 53, Heaviest daily rainfall 514, Heaviest daily snowfall 9, Deepest snow cover 5.

Records on 4 October 1986 by type
Record type	Records
Highest daily maximum	160
Lowest daily maximum	85
Highest daily minimum	439
Lowest daily minimum	53
Heaviest daily rainfall	514
Heaviest daily snowfall	9
Deepest snow cover	5

Records on 4 October 1986 by timescale: all-time 5, monthly 166, daily 1,094.

How Much Records Were Beaten By

969 broken records

Margins by which the 969 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 127.0. Ties are not counted.

Top 20 by Significance

4 October 1986

Top 20 records on 4 October 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 October 1986	Crane, US	monthly rain	104.1 mm (4.1 in)	52.5 mm (2.1 in)	56 years	72 of 100 (Major)
4 October 1986	Arcade, US	daily rain	39.9 mm (1.6 in)	29.5 mm (1.2 in)	92 years	70 of 100 (Major)
4 October 1986	Toledo Blade, US	daily rain	51.3 mm (2.0 in)	26.2 mm (1.0 in)	105 years	69 of 100 (Major)
4 October 1986	McCamey, US	all-time rain	231.9 mm (9.1 in)	61.7 mm (2.4 in)	12 years	68 of 100 (Major)
4 October 1986	St Charles Elm Pt, US	daily rain	86.1 mm (3.4 in)	61.5 mm (2.4 in)	53 years	65 of 100 (Major)
4 October 1986	Wauseon Wtp, US	daily rain	45.5 mm (1.8 in)	27.7 mm (1.1 in)	83 years	64 of 100 (Major)
4 October 1986	Greenville Wtp, US	daily rain	70.1 mm (2.8 in)	24.4 mm (1.0 in)	84 years	58 of 100 (Notable)
4 October 1986	Hamlin 1SW, US	daily rain	95.8 mm (3.8 in)	60.2 mm (2.4 in)	40 years	58 of 100 (Notable)
4 October 1986	Maranboy, AU	daily rain	53.2 mm (2.1 in)	53.2 mm (2.1 in)	61 years	57 of 100 (Notable)
4 October 1986	Tipp City, US	daily rain	66.0 mm (2.6 in)	41.1 mm (1.6 in)	44 years	57 of 100 (Notable)
4 October 1986	Creekside, US	daily rain	74.7 mm (2.9 in)	40.4 mm (1.6 in)	44 years	56 of 100 (Notable)
4 October 1986	Pine Islet Lighthouse, AU	daily rain	66.2 mm (2.6 in)	61.6 mm (2.4 in)	35 years	55 of 100 (Notable)
4 October 1986	Put-In-Bay, US	daily rain	38.1 mm (1.5 in)	24.4 mm (1.0 in)	60 years	55 of 100 (Notable)
4 October 1986	Meadville 1 S, US	daily rain	72.4 mm (2.9 in)	40.1 mm (1.6 in)	32 years	54 of 100 (Notable)
4 October 1986	Mt Olive 1 E, US	daily rain	68.8 mm (2.7 in)	54.3 mm (2.1 in)	32 years	53 of 100 (Notable)
4 October 1986	Greencastle 1 W, US	monthly rain	94.7 mm (3.7 in)	11.6 mm (0.5 in)	84 years	53 of 100 (Notable)
4 October 1986	Alexandria 4 WSW, US	monthly rain	78.7 mm (3.1 in)	27.1 mm (1.1 in)	13 years	53 of 100 (Notable)
4 October 1986	Bradford Cntrl Fs, US	daily rain	44.5 mm (1.8 in)	31.5 mm (1.2 in)	32 years	52 of 100 (Notable)
4 October 1986	Minchumina, US	daily snowfall	15.2 cm (6.0 in)	12.7 cm (5.0 in)	28 years	52 of 100 (Notable)
4 October 1986	Plaisance (Mauritiu, MU	daily rain	60.9 mm (2.4 in)	41.5 mm (1.6 in)	28 years	51 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

1795 to 1986

Records set or tied on this calendar date in each year from 1795 to 1986. 1986 had 1,265 records.

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

Records on 10-04 in each year
Year	Records
1795	1
1802	1
1841	2
1843	1
1844	2
1847	2
1853	1
1859	1
1864	8
1865	2
1867	1
1868	1
1873	1
1875	1
1876	1
1878	1
1880	1
1881	3
1882	1
1883	3
1884	4
1885	2
1886	3
1888	5
1889	2
1890	1
1891	3
1892	2
1893	2
1894	3
1895	3
1896	3
1898	4
1899	1
1900	3
1901	9
1902	5
1903	8
1904	5
1905	11
1906	29
1907	10
1908	18
1909	13
1910	21
1911	23
1912	101
1913	12
1914	18
1915	13
1916	137
1917	157
1918	127
1919	30
1920	31
1921	46
1922	44
1923	21
1924	63
1925	130
1926	255
1927	172
1928	131
1929	339
1930	244
1931	361
1932	413
1933	299
1934	121
1935	833
1936	161
1937	483
1938	440
1939	345
1940	220
1941	850
1942	198
1943	426
1944	328
1945	543
1946	314
1947	592
1948	449
1949	491
1950	565
1951	617
1952	717
1953	358
1954	999
1955	630
1956	467
1957	533
1958	704
1959	812
1960	246
1961	758
1962	313
1963	528
1964	389
1965	760
1966	464
1967	440
1968	587
1969	628
1970	539
1971	361
1972	712
1973	604
1974	1,846
1975	681
1976	869
1977	517
1978	488
1979	733
1980	975
1981	994
1982	415
1983	762
1984	864
1985	863
1986	1,265
1987	1,502
1988	713
1989	742
1990	845
1991	813
1992	866
1993	956
1994	1,341
1995	1,192
1996	1,012
1997	928
1998	1,487
1999	1,596
2000	917
2001	547
2002	1,465
2003	610
2004	562
2005	1,973
2006	987
2007	997
2008	935
2009	1,431
2010	1,230
2011	919
2012	864
2013	1,130
2014	611
2015	741
2016	680
2017	780
2018	979
2019	1,131
2020	897
2021	644
2022	561
2023	936
2024	1,197
2025	979
2026	942

Download the Data

Data for records on 1986-10-04: 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	858
20 to 40	81
40 to 60	18
60 to 80	8
80 to 100	1
100 to 120	2
120 to 140	1