Weather Records on 20 October 1990

609 weather records were set or tied worldwide on 20 October 1990. Highest significance: Black Lake, US.

Key Facts for 20 October 1990

On 20 October 1990, 609 weather records were set or tied at long-record stations worldwide.
161 were record highs and 113 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 13 monthly and 596 daily.
Black Lake set a daily record snowfall of 25.4 cm (10.0 in) on 20 October 1990.
Across 160 earlier years (1806 to 2025) the same calendar date averaged 456 records.

Record Map

609 stations

609 station records on 20 October 1990 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 October 1990: highest significance records shown on the map
Station	Country	Type	Value	Significance
Black Lake	United States	Record daily snowfall	25.4 cm (10.0 in)	61 of 100 (Major)
Chama	United States	Record daily precipitation	51.1 mm (2.0 in)	57 of 100 (Notable)
Leadville Lake Co AP	United States	Record daily snowfall	42.7 cm (16.8 in)	57 of 100 (Notable)
Walsenburg 1 NW	United States	Record daily snowfall	27.9 cm (11.0 in)	56 of 100 (Notable)
Fleming	United States	Record daily snowfall	7.9 cm (3.1 in)	52 of 100 (Notable)
Red Rvr	United States	Record daily snowfall	25.4 cm (10.0 in)	52 of 100 (Notable)
Goodland	United States	Record daily snowfall	13.0 cm (5.1 in)	52 of 100 (Notable)
Colorado Nm	United States	Record daily precipitation	33.0 mm (1.3 in)	51 of 100 (Notable)
Tongio (Brooklands)	Australia	Record daily precipitation	44.4 mm (1.7 in)	50 of 100 (Notable)
Akron 4 E	United States	Record daily snowfall	7.6 cm (3.0 in)	49 of 100 (Notable)
Chama	United States	Record daily snowfall	20.3 cm (8.0 in)	48 of 100 (Notable)
Westcliffe	United States	Record daily snowfall	30.5 cm (12.0 in)	47 of 100 (Notable)
Paragonah	United States	Record daily precipitation	27.4 mm (1.1 in)	46 of 100 (Notable)
Yalgogrin North (Roloma)	Australia	Record daily precipitation	28.0 mm (1.1 in)	45 of 100 (Notable)
Ensenada 1 W	Puerto Rico [United States]	Record daily precipitation	98.6 mm (3.9 in)	45 of 100 (Notable)
Cootamundra Post Office	Australia	Record daily precipitation	31.4 mm (1.2 in)	44 of 100 (Notable)
Cuernavaca (Dge)	Mexico	Record daily precipitation	83.1 mm (3.3 in)	44 of 100 (Notable)
Canon City	United States	Record daily precipitation	30.0 mm (1.2 in)	44 of 100 (Notable)
Westcliffe	United States	Record daily precipitation	29.0 mm (1.1 in)	44 of 100 (Notable)
West Wyalong (Tallimbalong)	Australia	Record daily precipitation	26.0 mm (1.0 in)	43 of 100 (Notable)
Des Moines	United States	Record daily snowfall	5.1 cm (2.0 in)	41 of 100 (Notable)
Bodie California St Historic P	United States	Record low minimum temperature	-16.7 C (1.9 F)	40 of 100 (Notable)
Canon City	United States	Record daily snowfall	10.7 cm (4.2 in)	40 of 100 (Notable)
Flagler 1S	United States	Record daily snowfall	7.6 cm (3.0 in)	40 of 100 (Notable)
Red Rvr	United States	Record snow depth	25.4 cm (10.0 in)	40 of 100 (Notable)
Puente Colgante	Mexico	Record high minimum temperature	27.8 C (82.0 F)	39 of 100 (Notable)
Glenwood Spgs #2	United States	Record daily precipitation	36.1 mm (1.4 in)	39 of 100 (Notable)
Guffey 10 SE	United States	Record daily snowfall	13.2 cm (5.2 in)	39 of 100 (Notable)
Cape Otway Lighthouse	Australia	Record daily precipitation	27.4 mm (1.1 in)	38 of 100 (Notable)
Del Norte 3ENE	United States	Record snow depth	10.2 cm (4.0 in)	38 of 100 (Notable)
Paradise Valley 1 NW	United States	Record low minimum temperature	-10.6 C (12.9 F)	38 of 100 (Notable)
Eagle Nest	United States	Record daily snowfall	10.2 cm (4.0 in)	38 of 100 (Notable)
Alfred	United States	Record daily precipitation	29.7 mm (1.2 in)	38 of 100 (Notable)
Pecs Pogany	Hungary	Record high minimum temperature	13.8 C (56.8 F)	37 of 100 (Notable)
Gospic	Croatia	Record daily precipitation	58.9 mm (2.3 in)	36 of 100 (Notable)
Split Marjan	Croatia	Record daily precipitation	90.7 mm (3.6 in)	36 of 100 (Notable)
Stratton	United States	Record daily snowfall	7.6 cm (3.0 in)	36 of 100 (Notable)
Clarksville	United States	Record daily precipitation	48.3 mm (1.9 in)	36 of 100 (Notable)
Omeo Comparison	Australia	Record daily precipitation	49.8 mm (2.0 in)	35 of 100 (Notable)
Amatikulu	South Africa	Record daily precipitation	57.0 mm (2.2 in)	35 of 100 (Notable)
Tambo Crossing	Australia	Record daily precipitation	27.0 mm (1.1 in)	34 of 100 (Routine)
Temascales	Mexico	Record daily precipitation	44.5 mm (1.8 in)	34 of 100 (Routine)
Fallon Exp STN	United States	Record low minimum temperature	-7.2 C (19.0 F)	34 of 100 (Routine)
Trinidad AP	United States	Record daily snowfall	12.7 cm (5.0 in)	34 of 100 (Routine)
Ensay	Australia	Record daily precipitation	27.0 mm (1.1 in)	33 of 100 (Routine)
Denver-Stapleton	United States	Record daily snowfall	9.1 cm (3.6 in)	33 of 100 (Routine)
Burcher Post Office	Australia	Record daily precipitation	30.4 mm (1.2 in)	32 of 100 (Routine)
Ogulin	Croatia	Record daily precipitation	98.1 mm (3.9 in)	32 of 100 (Routine)
Alturas	United States	Record low minimum temperature	-10.0 C (14.0 F)	32 of 100 (Routine)
Red Rvr	United States	Record daily precipitation	31.2 mm (1.2 in)	32 of 100 (Routine)
Limon	United States	Record daily snowfall	10.2 cm (4.0 in)	32 of 100 (Routine)
Duartina	Brazil	Record daily precipitation	65.5 mm (2.6 in)	31 of 100 (Routine)
Burlington	United States	Record low maximum temperature	1.1 C (34.0 F)	31 of 100 (Routine)
Sedalia 4 SSE	United States	Record daily snowfall	17.8 cm (7.0 in)	31 of 100 (Routine)
St Francis 8NW	United States	Record daily snowfall	7.6 cm (3.0 in)	31 of 100 (Routine)
Canton 4N	United States	Record low minimum temperature	-2.8 C (27.0 F)	31 of 100 (Routine)
Seeley Lake Rs	United States	Record daily snowfall	5.1 cm (2.0 in)	31 of 100 (Routine)
Beowawe	United States	Record low minimum temperature	-12.2 C (10.0 F)	31 of 100 (Routine)
Swifts Creek	Australia	Record daily precipitation	34.0 mm (1.3 in)	30 of 100 (Routine)
Genoa	United States	Record daily snowfall	7.1 cm (2.8 in)	30 of 100 (Routine)

Counts by Type and Timescale

609 records

Records set or tied on 20 October 1990 by type: Highest daily maximum 47, Lowest daily maximum 49, Highest daily minimum 114, Lowest daily minimum 64, Heaviest daily rainfall 262, Heaviest daily snowfall 44, Deepest snow cover 29.

Records on 20 October 1990 by type
Record type	Records
Highest daily maximum	47
Lowest daily maximum	49
Highest daily minimum	114
Lowest daily minimum	64
Heaviest daily rainfall	262
Heaviest daily snowfall	44
Deepest snow cover	29

Records on 20 October 1990 by timescale: all-time 0, monthly 13, daily 596.

How Much Records Were Beaten By

523 broken records

Margins by which the 523 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 279.0. Ties are not counted.

Top 20 by Significance

20 October 1990

Top 20 records on 20 October 1990 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 October 1990	Black Lake, US	daily snowfall	25.4 cm (10.0 in)	19.0 cm (7.5 in)	79 years	61 of 100 (Major)
20 October 1990	Chama, US	daily rain	51.1 mm (2.0 in)	30.0 mm (1.2 in)	36 years	57 of 100 (Notable)
20 October 1990	Leadville Lake Co AP, US	monthly snowfall	42.7 cm (16.8 in)	17.3 cm (6.8 in)	28 years	57 of 100 (Notable)
20 October 1990	Walsenburg 1 NW, US	daily snowfall	27.9 cm (11.0 in)	27.9 cm (11.0 in)	56 years	56 of 100 (Notable)
20 October 1990	Fleming, US	daily snowfall	7.9 cm (3.1 in)	7.9 cm (3.1 in)	94 years	52 of 100 (Notable)
20 October 1990	Red Rvr, US	daily snowfall	25.4 cm (10.0 in)	15.2 cm (6.0 in)	79 years	52 of 100 (Notable)
20 October 1990	Goodland, US	daily snowfall	13.0 cm (5.1 in)	11.7 cm (4.6 in)	84 years	52 of 100 (Notable)
20 October 1990	Colorado Nm, US	daily rain	33.0 mm (1.3 in)	20.3 mm (0.8 in)	36 years	51 of 100 (Notable)
20 October 1990	Tongio (Brooklands), AU	daily rain	44.4 mm (1.7 in)	19.5 mm (0.8 in)	63 years	50 of 100 (Notable)
20 October 1990	Akron 4 E, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	85 years	49 of 100 (Notable)
20 October 1990	Chama, US	daily snowfall	20.3 cm (8.0 in)	10.1 cm (4.0 in)	81 years	48 of 100 (Notable)
20 October 1990	Westcliffe, US	daily snowfall	30.5 cm (12.0 in)	15.3 cm (6.0 in)	80 years	47 of 100 (Notable)
20 October 1990	Paragonah, US	daily rain	27.4 mm (1.1 in)	19.5 mm (0.8 in)	32 years	46 of 100 (Notable)
20 October 1990	Yalgogrin North (Roloma), AU	daily rain	28.0 mm (1.1 in)	5.1 mm (0.20 in)	99 years	45 of 100 (Notable)
20 October 1990	Ensenada 1 W, PR	daily rain	98.6 mm (3.9 in)	78.8 mm (3.1 in)	8 years	45 of 100 (Notable)
20 October 1990	Cootamundra Post Office, AU	daily rain	31.4 mm (1.2 in)	7.5 mm (0.30 in)	85 years	44 of 100 (Notable)
20 October 1990	Cuernavaca (Dge), MX	daily rain	83.1 mm (3.3 in)	67.6 mm (2.7 in)	5 years	44 of 100 (Notable)
20 October 1990	Canon City, US	daily rain	30.0 mm (1.2 in)	18.1 mm (0.7 in)	28 years	44 of 100 (Notable)
20 October 1990	Westcliffe, US	daily rain	29.0 mm (1.1 in)	9.2 mm (0.36 in)	80 years	44 of 100 (Notable)
20 October 1990	West Wyalong (Tallimbalong), AU	daily rain	26.0 mm (1.0 in)	3.1 mm (0.12 in)	109 years	43 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

1806 to 1990

Records set or tied on this calendar date in each year from 1806 to 1990. 1990 had 609 records.

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

Records on 10-20 in each year
Year	Records
1806	1
1835	1
1844	1
1846	1
1847	2
1851	1
1852	1
1858	1
1863	2
1864	2
1866	3
1867	1
1868	2
1872	2
1874	2
1875	3
1876	2
1877	1
1878	1
1880	3
1881	2
1884	1
1885	1
1886	1
1887	1
1888	6
1891	4
1892	4
1893	1
1894	3
1895	4
1896	9
1897	2
1898	7
1899	1
1900	8
1901	7
1902	5
1903	9
1904	13
1905	22
1906	28
1907	32
1908	26
1909	17
1910	31
1911	16
1912	6
1913	38
1914	16
1915	20
1916	72
1917	201
1918	34
1919	19
1920	81
1921	68
1922	83
1923	96
1924	182
1925	247
1926	147
1927	283
1928	92
1929	129
1930	672
1931	125
1932	331
1933	675
1934	422
1935	390
1936	370
1937	189
1938	231
1939	367
1940	757
1941	459
1942	152
1943	501
1944	288
1945	363
1946	310
1947	1,494
1948	320
1949	1,084
1950	619
1951	279
1952	520
1953	1,057
1954	262
1955	529
1956	283
1957	440
1958	461
1959	451
1960	671
1961	479
1962	733
1963	765
1964	598
1965	340
1966	857
1967	511
1968	244
1969	607
1970	710
1971	606
1972	1,724
1973	878
1974	1,122
1975	587
1976	1,304
1977	467
1978	508
1979	1,647
1980	350
1981	1,083
1982	1,191
1983	944
1984	1,562
1985	835
1986	823
1987	590
1988	737
1989	2,092
1990	609
1991	971
1992	1,174
1993	1,238
1994	650
1995	703
1996	1,417
1997	949
1998	683
1999	603
2000	737
2001	589
2002	985
2003	1,761
2004	1,861
2005	1,092
2006	1,170
2007	923
2008	477
2009	786
2010	539
2011	785
2012	945
2013	592
2014	851
2015	523
2016	947
2017	602
2018	394
2019	744
2020	1,010
2021	900
2022	834
2023	1,468
2024	707
2025	326

Download the Data

Data for records on 1990-10-20: 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 50	477
50 to 100	29
100 to 150	9
150 to 200	7
200 to 250	0
250 to 300	1