Weather Records on 4 October 1990

845 weather records were set or tied worldwide on 4 October 1990. Highest significance: Ganca, AZ.

Key Facts for 4 October 1990

On 4 October 1990, 845 weather records were set or tied at long-record stations worldwide.
307 were record highs and 54 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 36 monthly and 807 daily.
Ganca set an all-time record daily precipitation of 99.1 mm (3.9 in) on 4 October 1990.
Across 160 earlier years (1795 to 2026) the same calendar date averaged 462 records.

Record Map

845 stations

845 station records on 4 October 1990 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 October 1990: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ganca	Azerbaijan	Record daily precipitation	99.1 mm (3.9 in)	80 of 100 (Exceptional)
Genoa	Italy	Record daily precipitation	200.2 mm (7.9 in)	65 of 100 (Major)
Brownsville	United States	Record daily precipitation	77.2 mm (3.0 in)	60 of 100 (Major)
Kvikkjokk-Arrenjarka	Sweden	Record daily precipitation	25.3 mm (1.0 in)	58 of 100 (Notable)
Hopkinsville	United States	Record daily precipitation	60.2 mm (2.4 in)	58 of 100 (Notable)
University	United States	Record daily precipitation	93.0 mm (3.7 in)	56 of 100 (Notable)
Rayones	Mexico	Record daily precipitation	55.4 mm (2.2 in)	55 of 100 (Notable)
Shelbyville 1 E	United States	Record daily precipitation	66.5 mm (2.6 in)	55 of 100 (Notable)
Dresden	United States	Record daily precipitation	89.7 mm (3.5 in)	55 of 100 (Notable)
Abbeville	United States	Record daily precipitation	58.7 mm (2.3 in)	52 of 100 (Notable)
Stuttgart	United States	Record daily precipitation	77.5 mm (3.1 in)	51 of 100 (Notable)
Paris 3 ESE	United States	Record daily precipitation	64.8 mm (2.6 in)	51 of 100 (Notable)
Williamstown	United States	Record daily precipitation	70.6 mm (2.8 in)	50 of 100 (Notable)
Covington 3 SW	United States	Record daily precipitation	71.1 mm (2.8 in)	49 of 100 (Notable)
Clearbrook	United States	Record daily precipitation	58.7 mm (2.3 in)	49 of 100 (Notable)
Diablo Dam	United States	Record daily precipitation	97.0 mm (3.8 in)	49 of 100 (Notable)
Stehekin 4 NW	United States	Record daily precipitation	41.9 mm (1.6 in)	49 of 100 (Notable)
Puente Jula	Mexico	Record daily precipitation	87.1 mm (3.4 in)	48 of 100 (Notable)
Lake Cormorant	United States	Record daily precipitation	45.0 mm (1.8 in)	48 of 100 (Notable)
Wilmington 3 N	United States	Record daily precipitation	39.4 mm (1.6 in)	48 of 100 (Notable)
Milan Exp STN	United States	Record daily precipitation	74.4 mm (2.9 in)	48 of 100 (Notable)
Camden 1	United States	Record daily precipitation	45.0 mm (1.8 in)	47 of 100 (Notable)
Lockport Lock 2	United States	Record daily precipitation	64.0 mm (2.5 in)	47 of 100 (Notable)
Caneyville 1W	United States	Record daily precipitation	83.8 mm (3.3 in)	46 of 100 (Notable)
Hernando	United States	Record daily precipitation	59.9 mm (2.4 in)	46 of 100 (Notable)
Brookville	United States	Record daily precipitation	44.2 mm (1.7 in)	45 of 100 (Notable)
Terre Haute Indiana State	United States	Record daily precipitation	46.7 mm (1.8 in)	45 of 100 (Notable)
Blytheville	United States	Record daily precipitation	74.2 mm (2.9 in)	44 of 100 (Notable)
Golden Pond 8 N	United States	Record daily precipitation	56.4 mm (2.2 in)	44 of 100 (Notable)
Carmi 6 NW	United States	Record daily precipitation	62.5 mm (2.5 in)	43 of 100 (Notable)
Maysville Wwtp	United States	Record daily precipitation	36.8 mm (1.4 in)	43 of 100 (Notable)
Swan Lake	United States	Record daily precipitation	40.6 mm (1.6 in)	43 of 100 (Notable)
Kennett Radio Kboa	United States	Record daily precipitation	61.2 mm (2.4 in)	43 of 100 (Notable)
Stevens Pass	United States	Record daily precipitation	70.6 mm (2.8 in)	43 of 100 (Notable)
Prachin Buri	Thailand	Record daily precipitation	99.1 mm (3.9 in)	42 of 100 (Notable)
Milford Gm Proving Ground	United States	Record daily precipitation	41.4 mm (1.6 in)	42 of 100 (Notable)
Saint Charles	United States	Record daily precipitation	37.1 mm (1.5 in)	42 of 100 (Notable)
Ripley	United States	Record daily precipitation	48.0 mm (1.9 in)	42 of 100 (Notable)
Kings Mills	United States	Record daily precipitation	42.2 mm (1.7 in)	42 of 100 (Notable)
Madras	United States	Record high minimum temperature	17.8 C (64.0 F)	42 of 100 (Notable)
Petropavlovsk	Kazakhstan	Record high minimum temperature	9.7 C (49.5 F)	41 of 100 (Notable)
C.E.I. Ciudad Mante	Mexico	Record daily precipitation	81.8 mm (3.2 in)	41 of 100 (Notable)
Mayaguez City	Puerto Rico [United States]	Record high minimum temperature	23.9 C (75.0 F)	41 of 100 (Notable)
Batesville	United States	Record daily precipitation	50.0 mm (2.0 in)	41 of 100 (Notable)
Hickory Flat	United States	Record daily precipitation	42.9 mm (1.7 in)	41 of 100 (Notable)
Sedalia	United States	Record daily precipitation	48.8 mm (1.9 in)	41 of 100 (Notable)
Savannah 6 SW	United States	Record daily precipitation	43.7 mm (1.7 in)	41 of 100 (Notable)
Nashville Intl AP	United States	Record daily precipitation	46.2 mm (1.8 in)	41 of 100 (Notable)
Warren 2 ENE	United States	Record daily precipitation	60.7 mm (2.4 in)	40 of 100 (Notable)
Shawneetown Old Town	United States	Record daily precipitation	43.4 mm (1.7 in)	40 of 100 (Notable)
Washington Court House	United States	Record daily precipitation	36.6 mm (1.4 in)	40 of 100 (Notable)
Union City	United States	Record daily precipitation	74.7 mm (2.9 in)	40 of 100 (Notable)
Poronajsk	Russia	Record high maximum temperature	21.5 C (70.7 F)	39 of 100 (Notable)
Stuttgart 9 ESE	United States	Record daily precipitation	57.2 mm (2.3 in)	39 of 100 (Notable)
Wasco	United States	Record high maximum temperature	40.6 C (105.1 F)	39 of 100 (Notable)
Montezuma 1 W	United States	Record daily precipitation	41.4 mm (1.6 in)	39 of 100 (Notable)
Battle Creek 5NW	United States	Record daily precipitation	45.7 mm (1.8 in)	39 of 100 (Notable)
Kalamazoo State Hospital	United States	Record daily precipitation	54.9 mm (2.2 in)	39 of 100 (Notable)
Richland	United States	Record low maximum temperature	11.1 C (52.0 F)	39 of 100 (Notable)
Jackson Exp STN	United States	Record daily precipitation	69.3 mm (2.7 in)	39 of 100 (Notable)

Counts by Type and Timescale

845 records

Records set or tied on 4 October 1990 by type: Highest daily maximum 99, Lowest daily maximum 28, Highest daily minimum 208, Lowest daily minimum 26, Heaviest daily rainfall 484.

Records on 4 October 1990 by type
Record type	Records
Highest daily maximum	99
Lowest daily maximum	28
Highest daily minimum	208
Lowest daily minimum	26
Heaviest daily rainfall	484
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 October 1990 by timescale: all-time 2, monthly 36, daily 807.

How Much Records Were Beaten By

690 broken records

Margins by which the 690 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 97.2. Ties are not counted.

Top 20 by Significance

4 October 1990

Top 20 records on 4 October 1990 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 October 1990	Ganca, AZ	all-time rain	99.1 mm (3.9 in)	22.4 mm (0.9 in)	35 years	80 of 100 (Exceptional)
4 October 1990	Genoa, IT	daily rain	200.2 mm (7.9 in)	97.2 mm (3.8 in)	65 years	65 of 100 (Major)
4 October 1990	Brownsville, US	daily rain	77.2 mm (3.0 in)	51.3 mm (2.0 in)	57 years	60 of 100 (Major)
4 October 1990	Kvikkjokk-Arrenjarka, SE	daily rain	25.3 mm (1.0 in)	9.3 mm (0.37 in)	94 years	58 of 100 (Notable)
4 October 1990	Hopkinsville, US	daily rain	60.2 mm (2.4 in)	34.8 mm (1.4 in)	80 years	58 of 100 (Notable)
4 October 1990	University, US	daily rain	93.0 mm (3.7 in)	54.1 mm (2.1 in)	57 years	56 of 100 (Notable)
4 October 1990	Rayones, MX	daily rain	55.4 mm (2.2 in)	51.8 mm (2.0 in)	36 years	55 of 100 (Notable)
4 October 1990	Shelbyville 1 E, US	daily rain	66.5 mm (2.6 in)	25.4 mm (1.0 in)	83 years	55 of 100 (Notable)
4 October 1990	Dresden, US	daily rain	89.7 mm (3.5 in)	56.7 mm (2.2 in)	40 years	55 of 100 (Notable)
4 October 1990	Abbeville, US	daily rain	58.7 mm (2.3 in)	52.9 mm (2.1 in)	40 years	52 of 100 (Notable)
4 October 1990	Stuttgart, US	daily rain	77.5 mm (3.1 in)	40.7 mm (1.6 in)	60 years	51 of 100 (Notable)
4 October 1990	Paris 3 ESE, US	daily rain	64.8 mm (2.6 in)	48.3 mm (1.9 in)	43 years	51 of 100 (Notable)
4 October 1990	Williamstown, US	daily rain	70.6 mm (2.8 in)	21.6 mm (0.9 in)	83 years	50 of 100 (Notable)
4 October 1990	Covington 3 SW, US	daily rain	71.1 mm (2.8 in)	39.3 mm (1.5 in)	57 years	49 of 100 (Notable)
4 October 1990	Clearbrook, US	daily rain	58.7 mm (2.3 in)	26.2 mm (1.0 in)	51 years	49 of 100 (Notable)
4 October 1990	Diablo Dam, US	daily rain	97.0 mm (3.8 in)	36.5 mm (1.4 in)	69 years	49 of 100 (Notable)
4 October 1990	Stehekin 4 NW, US	daily rain	41.9 mm (1.6 in)	24.4 mm (1.0 in)	51 years	49 of 100 (Notable)
4 October 1990	Puente Jula, MX	daily rain	87.1 mm (3.4 in)	70.3 mm (2.8 in)	19 years	48 of 100 (Notable)
4 October 1990	Lake Cormorant, US	daily rain	45.0 mm (1.8 in)	25.2 mm (1.0 in)	80 years	48 of 100 (Notable)
4 October 1990	Wilmington 3 N, US	daily rain	39.4 mm (1.6 in)	22.1 mm (0.9 in)	64 years	48 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 1990

Records set or tied on this calendar date in each year from 1795 to 1990. 1990 had 845 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 1990-10-04: 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	580
20 to 40	91
40 to 60	15
60 to 80	3
80 to 100	1