Weather Records on 20 November 1966

434 weather records were set or tied worldwide on 20 November 1966. Highest significance: Mariyna Gorka, BY.

Key Facts for 20 November 1966

On 20 November 1966, 434 weather records were set or tied at long-record stations worldwide.
198 were record highs and 70 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 14 monthly and 420 daily.
Mariyna Gorka set a daily record precipitation of 33.5 mm (1.3 in) on 20 November 1966.
Across 156 earlier years (1793 to 2025) the same calendar date averaged 454 records.

Record Map

434 stations

434 station records on 20 November 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 November 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mariyna Gorka	Belarus	Record daily precipitation	33.5 mm (1.3 in)	66 of 100 (Major)
Rio Formoso	Brazil	Record daily precipitation	90.9 mm (3.6 in)	58 of 100 (Notable)
Alhandra	Brazil	Record daily precipitation	40.5 mm (1.6 in)	49 of 100 (Notable)
McKinley Park	United States	Record daily precipitation	29.7 mm (1.2 in)	48 of 100 (Notable)
Stevens Pt	United States	Record daily snowfall	10.2 cm (4.0 in)	46 of 100 (Notable)
McKinley Park	United States	Record daily snowfall	33.0 cm (13.0 in)	44 of 100 (Notable)
Vasilevici	Belarus	Record daily precipitation	41.0 mm (1.6 in)	43 of 100 (Notable)
Morgan 3 NE	United States	Record daily precipitation	26.9 mm (1.1 in)	42 of 100 (Notable)
Chico UNIV Farm	United States	Record daily precipitation	86.4 mm (3.4 in)	38 of 100 (Notable)
Kent	United States	Record daily precipitation	26.9 mm (1.1 in)	38 of 100 (Notable)
Seneca	United States	Record daily precipitation	27.9 mm (1.1 in)	38 of 100 (Notable)
Tasiilaq	Greenland [Denmark]	Record low minimum temperature	-19.6 C (-3.3 F)	36 of 100 (Notable)
Dunnigan	United States	Record daily precipitation	49.0 mm (1.9 in)	35 of 100 (Notable)
Napa State Hospital	United States	Record daily precipitation	42.7 mm (1.7 in)	35 of 100 (Notable)
Lodi	United States	Record daily precipitation	33.5 mm (1.3 in)	34 of 100 (Routine)
Round Grove	United States	Record daily snowfall	15.2 cm (6.0 in)	34 of 100 (Routine)
Orland	United States	Record daily precipitation	63.0 mm (2.5 in)	33 of 100 (Routine)
Johnstown	United States	Record low minimum temperature	-11.1 C (12.0 F)	33 of 100 (Routine)
Flambeau Rsvr	United States	Record daily snowfall	12.7 cm (5.0 in)	33 of 100 (Routine)
Fairbanks Intl AP	United States	Record daily snowfall	19.3 cm (7.6 in)	33 of 100 (Routine)
Willows 6 W	United States	Record daily precipitation	70.6 mm (2.8 in)	32 of 100 (Routine)
Glenns Ferry	United States	Record high minimum temperature	10.6 C (51.1 F)	32 of 100 (Routine)
Payette	United States	Record high maximum temperature	20.6 C (69.1 F)	32 of 100 (Routine)
Kelseyville	United States	Record daily precipitation	56.4 mm (2.2 in)	31 of 100 (Routine)
Oroville Brg	United States	Record daily precipitation	62.7 mm (2.5 in)	31 of 100 (Routine)
Davis 2 WSW Exp Farm	United States	Record daily precipitation	38.9 mm (1.5 in)	30 of 100 (Routine)
St Catharines	Canada	Record low minimum temperature	-8.3 C (17.1 F)	29 of 100 (Routine)
Greenville	United States	Record daily precipitation	68.6 mm (2.7 in)	29 of 100 (Routine)
Woodland 1 WNW	United States	Record daily precipitation	36.3 mm (1.4 in)	29 of 100 (Routine)
Vale	United States	Record high maximum temperature	19.4 C (66.9 F)	29 of 100 (Routine)
Tucson WFO	United States	Record high maximum temperature	31.1 C (88.0 F)	28 of 100 (Routine)
Quincy	United States	Record high minimum temperature	7.8 C (46.0 F)	28 of 100 (Routine)
Elmira	United States	Record low minimum temperature	-10.0 C (14.0 F)	28 of 100 (Routine)
Richland	United States	Record high minimum temperature	5.6 C (42.1 F)	28 of 100 (Routine)
Bellefonte 4 S	United States	Record low minimum temperature	-10.0 C (14.0 F)	28 of 100 (Routine)
Staunton Wtp	United States	Record low minimum temperature	-11.1 C (12.0 F)	28 of 100 (Routine)
Conconully	United States	Record high minimum temperature	4.4 C (39.9 F)	28 of 100 (Routine)
Brooks Farnham Rch	United States	Record daily precipitation	58.4 mm (2.3 in)	27 of 100 (Routine)
East Park Rsvr	United States	Record daily precipitation	46.5 mm (1.8 in)	27 of 100 (Routine)
Mineral	United States	Record daily precipitation	127.3 mm (5.0 in)	27 of 100 (Routine)
Quincy	United States	Record daily precipitation	88.1 mm (3.5 in)	27 of 100 (Routine)
Brockport	United States	Record low minimum temperature	-8.9 C (16.0 F)	27 of 100 (Routine)
Ithaca Cornell UNIV	United States	Record low minimum temperature	-10.0 C (14.0 F)	27 of 100 (Routine)
Huntington	United States	Record high minimum temperature	7.2 C (45.0 F)	27 of 100 (Routine)
Martinsburg E W Virginia Rgnl	United States	Record low minimum temperature	-9.4 C (15.1 F)	27 of 100 (Routine)
Emmett 2 E	United States	Record high maximum temperature	20.0 C (68.0 F)	26 of 100 (Routine)
Salmon AP	United States	Record high maximum temperature	16.1 C (61.0 F)	26 of 100 (Routine)
Lordsburg 4 SE	United States	Record high minimum temperature	5.6 C (42.1 F)	26 of 100 (Routine)
Nenana Muni AP	United States	Record daily snowfall	15.2 cm (6.0 in)	26 of 100 (Routine)
Olds	Canada	Record daily snowfall	15.7 cm (6.2 in)	25 of 100 (Routine)
Table.Mtn Woodhead Tunnel	South Africa	Record daily precipitation	29.0 mm (1.1 in)	25 of 100 (Routine)
Gem Lake	United States	Record daily precipitation	38.6 mm (1.5 in)	25 of 100 (Routine)
Caldwell	United States	Record high minimum temperature	9.4 C (48.9 F)	25 of 100 (Routine)
Derry 4 SW	United States	Record low minimum temperature	-9.4 C (15.1 F)	25 of 100 (Routine)
Olho Dagua	Brazil	Record daily precipitation	25.4 mm (1.0 in)	24 of 100 (Routine)
Cambridge	United States	Record high maximum temperature	16.1 C (61.0 F)	24 of 100 (Routine)
Shoshone 1 WNW	United States	Record high maximum temperature	18.3 C (64.9 F)	24 of 100 (Routine)
Greenville 2 NE	United States	Record low minimum temperature	-10.0 C (14.0 F)	24 of 100 (Routine)
Calistoga	United States	Record daily precipitation	60.7 mm (2.4 in)	23 of 100 (Routine)
Stony Gorge Rsvr	United States	Record daily precipitation	41.1 mm (1.6 in)	23 of 100 (Routine)

Counts by Type and Timescale

434 records

Records set or tied on 20 November 1966 by type: Highest daily maximum 115, Lowest daily maximum 10, Highest daily minimum 83, Lowest daily minimum 60, Heaviest daily rainfall 136, Heaviest daily snowfall 25, Deepest snow cover 5.

Records on 20 November 1966 by type
Record type	Records
Highest daily maximum	115
Lowest daily maximum	10
Highest daily minimum	83
Lowest daily minimum	60
Heaviest daily rainfall	136
Heaviest daily snowfall	25
Deepest snow cover	5

Records on 20 November 1966 by timescale: all-time 0, monthly 14, daily 420.

How Much Records Were Beaten By

347 broken records

Margins by which the 347 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 November 1966

Top 20 records on 20 November 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 November 1966	Mariyna Gorka, BY	daily rain	33.5 mm (1.3 in)	26.6 mm (1.0 in)	64 years	66 of 100 (Major)
20 November 1966	Rio Formoso, BR	monthly rain	90.9 mm (3.6 in)	36.4 mm (1.4 in)	16 years	58 of 100 (Notable)
20 November 1966	Alhandra, BR	daily rain	40.5 mm (1.6 in)	19.3 mm (0.8 in)	28 years	49 of 100 (Notable)
20 November 1966	McKinley Park, US	daily rain	29.7 mm (1.2 in)	19.5 mm (0.8 in)	31 years	48 of 100 (Notable)
20 November 1966	Stevens Pt, US	daily snowfall	10.2 cm (4.0 in)	7.7 cm (3.0 in)	71 years	46 of 100 (Notable)
20 November 1966	McKinley Park, US	daily snowfall	33.0 cm (13.0 in)	27.9 cm (11.0 in)	1 year	44 of 100 (Notable)
20 November 1966	Vasilevici, BY	monthly rain	41.0 mm (1.6 in)	5.5 mm (0.22 in)	37 years	43 of 100 (Notable)
20 November 1966	Morgan 3 NE, US	monthly rain	26.9 mm (1.1 in)	8.4 mm (0.33 in)	22 years	42 of 100 (Notable)
20 November 1966	Chico UNIV Farm, US	daily rain	86.4 mm (3.4 in)	30.3 mm (1.2 in)	28 years	38 of 100 (Notable)
20 November 1966	Kent, US	daily rain	26.9 mm (1.1 in)	11.4 mm (0.4 in)	40 years	38 of 100 (Notable)
20 November 1966	Seneca, US	monthly rain	27.9 mm (1.1 in)	2.8 mm (0.11 in)	55 years	38 of 100 (Notable)
20 November 1966	Tasiilaq, GL	daily low min	-19.6 C (-3.3 F)	5.5 C (9.9 F)	61 years	36 of 100 (Notable)
20 November 1966	Dunnigan, US	monthly rain	49.0 mm (1.9 in)	3.8 mm (0.15 in)	53 years	35 of 100 (Notable)
20 November 1966	Napa State Hospital, US	daily rain	42.7 mm (1.7 in)	11.5 mm (0.5 in)	63 years	35 of 100 (Notable)
20 November 1966	Lodi, US	daily rain	33.5 mm (1.3 in)	7.6 mm (0.30 in)	63 years	34 of 100 (Routine)
20 November 1966	Round Grove, US	daily snowfall	15.2 cm (6.0 in)	12.7 cm (5.0 in)	15 years	34 of 100 (Routine)
20 November 1966	Orland, US	daily rain	63.0 mm (2.5 in)	29.2 mm (1.1 in)	3 years	33 of 100 (Routine)
20 November 1966	Johnstown, US	daily low min	-11.1 C (12.0 F)	3.9 C (7.0 F)	63 years	33 of 100 (Routine)
20 November 1966	Flambeau Rsvr, US	daily snowfall	12.7 cm (5.0 in)	8.9 cm (3.5 in)	27 years	33 of 100 (Routine)
20 November 1966	Fairbanks Intl AP, US	daily snowfall	19.3 cm (7.6 in)	9.6 cm (3.8 in)	1 year	33 of 100 (Routine)

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

1793 to 1966

Records set or tied on this calendar date in each year from 1793 to 1966. 1966 had 434 records.

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

Records on 11-20 in each year
Year	Records
1793	1
1809	2
1816	3
1829	4
1835	1
1836	1
1847	1
1851	1
1852	1
1855	1
1858	1
1859	1
1862	1
1865	1
1871	1
1873	1
1874	1
1878	1
1879	3
1880	2
1881	1
1884	1
1885	2
1886	1
1887	1
1889	3
1890	2
1891	4
1893	2
1894	1
1897	7
1900	11
1901	6
1902	10
1903	10
1904	9
1905	7
1906	22
1907	5
1908	8
1909	26
1910	14
1911	29
1912	15
1913	64
1914	89
1915	12
1916	16
1917	65
1918	14
1919	47
1920	15
1921	73
1922	26
1923	45
1924	84
1925	224
1926	294
1927	105
1928	140
1929	130
1930	600
1931	646
1932	255
1933	702
1934	477
1935	55
1936	286
1937	1,102
1938	167
1939	265
1940	280
1941	438
1942	774
1943	248
1944	347
1945	322
1946	774
1947	413
1948	651
1949	362
1950	877
1951	742
1952	494
1953	850
1954	876
1955	365
1956	598
1957	190
1958	218
1959	270
1960	330
1961	540
1962	700
1963	597
1964	863
1965	285
1966	434
1967	277
1968	479
1969	710
1970	368
1971	651
1972	729
1973	941
1974	655
1975	660
1976	389
1977	1,332
1978	1,413
1979	819
1980	745
1981	1,119
1982	800
1983	1,054
1984	537
1985	2,379
1986	1,142
1987	666
1988	1,218
1989	986
1990	1,010
1991	798
1992	1,416
1993	1,211
1994	1,484
1995	1,237
1996	1,566
1997	461
1998	829
1999	493
2000	1,163
2001	843
2002	900
2003	1,242
2004	738
2005	432
2006	1,034
2007	1,151
2008	1,171
2009	1,184
2010	678
2011	816
2012	657
2013	411
2014	1,018
2015	733
2016	725
2017	451
2018	339
2019	791
2020	578
2021	414
2022	1,283
2023	554
2024	645
2025	660

Download the Data

Data for records on 1966-11-20: 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	338
50 to 100	7
100 to 150	1
150 to 200	0
200 to 250	0
250 to 300	1