Weather Records on 21 October 1990

807 weather records were set or tied worldwide on 21 October 1990. Highest significance: Cle Elum, US.

Key Facts for 21 October 1990

On 21 October 1990, 807 weather records were set or tied at long-record stations worldwide.
184 were record highs and 227 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 12 monthly and 795 daily.
Cle Elum set a daily record precipitation of 26.4 mm (1.0 in) on 21 October 1990.
Across 167 earlier years (1795 to 2025) the same calendar date averaged 418 records.

Record Map

807 stations

807 station records on 21 October 1990 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 October 1990: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cle Elum	United States	Record daily precipitation	26.4 mm (1.0 in)	56 of 100 (Notable)
El Tecomate	Mexico	Record daily precipitation	37.8 mm (1.5 in)	55 of 100 (Notable)
Mt Holly 4 NE	United States	Record daily precipitation	88.9 mm (3.5 in)	53 of 100 (Notable)
Grand Coteau	United States	Record daily precipitation	55.9 mm (2.2 in)	52 of 100 (Notable)
Dno	Russia	Record daily precipitation	33.9 mm (1.3 in)	51 of 100 (Notable)
Cidra 1 E	Puerto Rico [United States]	Record daily precipitation	78.7 mm (3.1 in)	47 of 100 (Notable)
Hacienda de Arriba	Mexico	Record daily precipitation	31.8 mm (1.3 in)	45 of 100 (Notable)
Tak	Thailand	Record daily precipitation	119.9 mm (4.7 in)	45 of 100 (Notable)
Cochetopa Creek	United States	Record snow depth	15.2 cm (6.0 in)	45 of 100 (Notable)
San Marcos	United States	Record low maximum temperature	12.2 C (54.0 F)	45 of 100 (Notable)
Juana Diaz Camp	Puerto Rico [United States]	Record daily precipitation	96.5 mm (3.8 in)	44 of 100 (Notable)
Bobrynets	Ukraine	Record daily precipitation	28.7 mm (1.1 in)	44 of 100 (Notable)
Clearwater	United States	Record daily precipitation	68.6 mm (2.7 in)	44 of 100 (Notable)
Mingela Post Office	Australia	Record daily precipitation	33.4 mm (1.3 in)	43 of 100 (Notable)
Brazzaville	Congo (Brazzaville)	Record daily precipitation	87.9 mm (3.5 in)	41 of 100 (Notable)
El Dorado Goodwin Fld	United States	Record daily precipitation	73.7 mm (2.9 in)	41 of 100 (Notable)
Leon (Dge)	Mexico	Record daily precipitation	27.7 mm (1.1 in)	40 of 100 (Notable)
Oktjabrskij-Gorodok	Russia	Record high minimum temperature	9.6 C (49.3 F)	40 of 100 (Notable)
Gunnison 3SW	United States	Record low maximum temperature	-0.6 C (30.9 F)	40 of 100 (Notable)
Longmont 2 ESE	United States	Record low minimum temperature	-8.9 C (16.0 F)	40 of 100 (Notable)
Payson	United States	Record daily precipitation	28.7 mm (1.1 in)	40 of 100 (Notable)
New Orleans Audubon	United States	Record daily precipitation	34.3 mm (1.4 in)	40 of 100 (Notable)
Dois Rios	Brazil	Record daily precipitation	70.6 mm (2.8 in)	39 of 100 (Notable)
Voru	Estonia	Record snow depth	15.0 cm (5.9 in)	39 of 100 (Notable)
Cayey 1 E	Puerto Rico [United States]	Record daily precipitation	109.7 mm (4.3 in)	39 of 100 (Notable)
Magueyes Is	Puerto Rico [United States]	Record daily precipitation	78.0 mm (3.1 in)	39 of 100 (Notable)
Saguache	United States	Record low maximum temperature	2.8 C (37.0 F)	39 of 100 (Notable)
Llano	United States	Record daily precipitation	31.5 mm (1.2 in)	39 of 100 (Notable)
Metztitlan	Mexico	Record daily precipitation	36.8 mm (1.4 in)	38 of 100 (Notable)
Westcliffe	United States	Record low maximum temperature	1.7 C (35.1 F)	38 of 100 (Notable)
Naracoopa	Australia	Record daily precipitation	26.4 mm (1.0 in)	37 of 100 (Notable)
Milan	Italy	Record high maximum temperature	22.5 C (72.5 F)	37 of 100 (Notable)
Salida	United States	Record daily snowfall	10.2 cm (4.0 in)	37 of 100 (Notable)
Saint Leo	United States	Record daily precipitation	25.9 mm (1.0 in)	37 of 100 (Notable)
Oakville	United States	Record daily precipitation	40.6 mm (1.6 in)	37 of 100 (Notable)
Puente Colgante	Mexico	Record high minimum temperature	27.8 C (82.0 F)	36 of 100 (Notable)
Iguala (Smn)	Mexico	Record daily precipitation	50.8 mm (2.0 in)	36 of 100 (Notable)
Venados	Mexico	Record daily precipitation	34.8 mm (1.4 in)	36 of 100 (Notable)
Central San Francisco	Puerto Rico [United States]	Record daily precipitation	81.3 mm (3.2 in)	36 of 100 (Notable)
Niznij Novgorod	Russia	Record high minimum temperature	8.5 C (47.3 F)	36 of 100 (Notable)
Flagler 1S	United States	Record daily snowfall	5.1 cm (2.0 in)	36 of 100 (Notable)
Westcliffe	United States	Record low minimum temperature	-18.9 C (-2.0 F)	36 of 100 (Notable)
Tierra Amarilla 4 N	United States	Record snow depth	12.7 cm (5.0 in)	36 of 100 (Notable)
Eagle	United States	Record daily snowfall	10.2 cm (4.0 in)	36 of 100 (Notable)
Guarani	Brazil	Record daily precipitation	62.4 mm (2.5 in)	35 of 100 (Notable)
Borinquen AP	Puerto Rico [United States]	Record low maximum temperature	25.0 C (77.0 F)	35 of 100 (Notable)
Bezeck	Russia	Record daily precipitation	28.9 mm (1.1 in)	35 of 100 (Notable)
Ponte Do Souza	Brazil	Record daily precipitation	90.0 mm (3.5 in)	34 of 100 (Routine)
Plain	United States	Record daily precipitation	32.0 mm (1.3 in)	34 of 100 (Routine)
Paso de San Antonio	Mexico	Record daily precipitation	40.9 mm (1.6 in)	33 of 100 (Routine)
Tanzabaca	Mexico	Record daily precipitation	89.4 mm (3.5 in)	33 of 100 (Routine)
Eads	United States	Record low maximum temperature	2.8 C (37.0 F)	33 of 100 (Routine)
Melrose	United States	Record low minimum temperature	-2.2 C (28.0 F)	33 of 100 (Routine)
Kenton	United States	Record low maximum temperature	6.1 C (43.0 F)	33 of 100 (Routine)
Usina Ituere	Brazil	Record daily precipitation	32.7 mm (1.3 in)	32 of 100 (Routine)
Coloso	Puerto Rico [United States]	Record low maximum temperature	27.2 C (81.0 F)	32 of 100 (Routine)
Malvern	United States	Record daily precipitation	25.1 mm (1.0 in)	32 of 100 (Routine)
Porthill	United States	Record low maximum temperature	4.4 C (39.9 F)	32 of 100 (Routine)
Tierra Amarilla 4 N	United States	Record daily snowfall	14.0 cm (5.5 in)	32 of 100 (Routine)
Tucumcari 4 NE	United States	Record low minimum temperature	-2.8 C (27.0 F)	32 of 100 (Routine)

Counts by Type and Timescale

807 records

Records set or tied on 21 October 1990 by type: Highest daily maximum 68, Lowest daily maximum 102, Highest daily minimum 116, Lowest daily minimum 125, Heaviest daily rainfall 366, Heaviest daily snowfall 11, Deepest snow cover 19.

Records on 21 October 1990 by type
Record type	Records
Highest daily maximum	68
Lowest daily maximum	102
Highest daily minimum	116
Lowest daily minimum	125
Heaviest daily rainfall	366
Heaviest daily snowfall	11
Deepest snow cover	19

Records on 21 October 1990 by timescale: all-time 0, monthly 12, daily 795.

How Much Records Were Beaten By

680 broken records

Margins by which the 680 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

21 October 1990

Top 20 records on 21 October 1990 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 October 1990	Cle Elum, US	daily rain	26.4 mm (1.0 in)	13.2 mm (0.5 in)	89 years	56 of 100 (Notable)
21 October 1990	El Tecomate, MX	daily rain	37.8 mm (1.5 in)	25.9 mm (1.0 in)	36 years	55 of 100 (Notable)
21 October 1990	Mt Holly 4 NE, US	daily rain	88.9 mm (3.5 in)	63.5 mm (2.5 in)	28 years	53 of 100 (Notable)
21 October 1990	Grand Coteau, US	daily rain	55.9 mm (2.2 in)	38.1 mm (1.5 in)	89 years	52 of 100 (Notable)
21 October 1990	Dno, RU	monthly rain	33.9 mm (1.3 in)	11.1 mm (0.4 in)	27 years	51 of 100 (Notable)
21 October 1990	Cidra 1 E, PR	daily rain	78.7 mm (3.1 in)	42.6 mm (1.7 in)	61 years	47 of 100 (Notable)
21 October 1990	Hacienda de Arriba, MX	daily rain	31.8 mm (1.3 in)	24.4 mm (1.0 in)	43 years	45 of 100 (Notable)
21 October 1990	Tak, TH	daily rain	119.9 mm (4.7 in)	68.0 mm (2.7 in)	28 years	45 of 100 (Notable)
21 October 1990	Cochetopa Creek, US	daily snow depth	15.2 cm (6.0 in)	7.6 cm (3.0 in)	80 years	45 of 100 (Notable)
21 October 1990	San Marcos, US	daily low max	12.2 C (54.0 F)	5.6 C (10.1 F)	80 years	45 of 100 (Notable)
21 October 1990	Juana Diaz Camp, PR	daily rain	96.5 mm (3.8 in)	58.1 mm (2.3 in)	32 years	44 of 100 (Notable)
21 October 1990	Bobrynets, UA	daily rain	28.7 mm (1.1 in)	24.7 mm (1.0 in)	4 years	44 of 100 (Notable)
21 October 1990	Clearwater, US	daily rain	68.6 mm (2.7 in)	18.3 mm (0.7 in)	89 years	44 of 100 (Notable)
21 October 1990	Mingela Post Office, AU	daily rain	33.4 mm (1.3 in)	21.7 mm (0.9 in)	65 years	43 of 100 (Notable)
21 October 1990	Brazzaville, CG	daily rain	87.9 mm (3.5 in)	48.9 mm (1.9 in)	36 years	41 of 100 (Notable)
21 October 1990	El Dorado Goodwin Fld, US	daily rain	73.7 mm (2.9 in)	40.2 mm (1.6 in)	40 years	41 of 100 (Notable)
21 October 1990	Leon (Dge), MX	daily rain	27.7 mm (1.1 in)	19.1 mm (0.8 in)	43 years	40 of 100 (Notable)
21 October 1990	Oktjabrskij-Gorodok, RU	daily high min	9.6 C (49.3 F)	2.8 C (5.0 F)	84 years	40 of 100 (Notable)
21 October 1990	Gunnison 3SW, US	daily low max	-0.6 C (30.9 F)	3.9 C (7.0 F)	81 years	40 of 100 (Notable)
21 October 1990	Longmont 2 ESE, US	daily low min	-8.9 C (16.0 F)	2.8 C (5.0 F)	80 years	40 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 807 records.

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

Records on 10-21 in each year
Year	Records
1795	1
1802	2
1805	1
1808	1
1810	1
1834	1
1835	1
1840	1
1845	1
1847	1
1850	1
1851	2
1854	1
1859	1
1863	1
1864	1
1866	3
1867	1
1868	3
1869	2
1871	1
1872	1
1873	1
1874	1
1876	4
1877	2
1878	1
1880	3
1881	1
1883	1
1886	1
1888	2
1889	2
1890	3
1891	6
1892	6
1893	1
1894	1
1895	2
1896	5
1898	6
1899	3
1900	2
1901	9
1902	2
1903	3
1904	30
1905	15
1906	11
1907	35
1908	35
1909	19
1910	21
1911	10
1912	18
1913	59
1914	35
1915	43
1916	70
1917	208
1918	18
1919	102
1920	149
1921	58
1922	78
1923	81
1924	389
1925	150
1926	77
1927	187
1928	78
1929	200
1930	492
1931	217
1932	165
1933	733
1934	407
1935	707
1936	407
1937	132
1938	121
1939	491
1940	537
1941	644
1942	258
1943	421
1944	367
1945	538
1946	297
1947	977
1948	266
1949	1,015
1950	438
1951	382
1952	848
1953	1,579
1954	279
1955	481
1956	276
1957	511
1958	322
1959	410
1960	408
1961	553
1962	359
1963	725
1964	457
1965	465
1966	425
1967	472
1968	174
1969	881
1970	548
1971	498
1972	813
1973	464
1974	866
1975	509
1976	1,467
1977	451
1978	616
1979	1,958
1980	378
1981	667
1982	870
1983	786
1984	1,872
1985	776
1986	814
1987	852
1988	696
1989	1,668
1990	807
1991	877
1992	1,095
1993	845
1994	670
1995	1,120
1996	1,581
1997	915
1998	711
1999	688
2000	771
2001	610
2002	1,241
2003	2,066
2004	1,674
2005	949
2006	1,057
2007	916
2008	610
2009	713
2010	710
2011	662
2012	703
2013	440
2014	716
2015	493
2016	734
2017	750
2018	440
2019	757
2020	1,135
2021	574
2022	629
2023	890
2024	1,138
2025	364

Download the Data

Data for records on 1990-10-21: 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 20	610
20 to 40	40
40 to 60	16
60 to 80	8
80 to 100	2
100 to 120	3
120 to 140	1