Weather Records on 20 July 1966

469 weather records were set or tied worldwide on 20 July 1966. Highest significance: Amherst, US.

Key Facts for 20 July 1966

On 20 July 1966, 469 weather records were set or tied at long-record stations worldwide.
150 were record highs and 92 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 7 monthly and 460 daily.
Amherst set a daily record precipitation of 81.3 mm (3.2 in) on 20 July 1966.
Across 161 earlier years (1809 to 2026) the same calendar date averaged 459 records.

Record Map

469 stations

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

Weather records on 20 July 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Amherst	United States	Record daily precipitation	81.3 mm (3.2 in)	66 of 100 (Major)
Goldberg	Germany	Record daily precipitation	55.7 mm (2.2 in)	63 of 100 (Major)
Oktjabrskij-Gorodok	Russia	Record daily precipitation	58.0 mm (2.3 in)	62 of 100 (Major)
Tribes Hill	United States	Record daily precipitation	74.4 mm (2.9 in)	53 of 100 (Notable)
Tuckerton 2 NE	United States	Record daily precipitation	76.7 mm (3.0 in)	52 of 100 (Notable)
Chelsea	United States	Record daily precipitation	53.8 mm (2.1 in)	52 of 100 (Notable)
Skaneateles	United States	Record daily precipitation	66.3 mm (2.6 in)	49 of 100 (Notable)
Teterow	Germany	Record daily precipitation	39.2 mm (1.5 in)	47 of 100 (Notable)
Toms River	United States	Record daily precipitation	58.9 mm (2.3 in)	47 of 100 (Notable)
Ipira (Camisao)	Brazil	Record daily precipitation	84.0 mm (3.3 in)	46 of 100 (Notable)
Sao Bento Do Una	Brazil	Record daily precipitation	26.2 mm (1.0 in)	42 of 100 (Notable)
Urjupinsk	Russia	Record daily precipitation	35.4 mm (1.4 in)	39 of 100 (Notable)
Millinocket	United States	Record daily precipitation	63.5 mm (2.5 in)	39 of 100 (Notable)
Grenfell	Canada	Record daily precipitation	35.1 mm (1.4 in)	38 of 100 (Notable)
Soltau	Germany	Record daily precipitation	34.3 mm (1.4 in)	38 of 100 (Notable)
Ozark 6 NNW	United States	Record daily precipitation	53.1 mm (2.1 in)	38 of 100 (Notable)
Chesterfield	United States	Record daily precipitation	56.9 mm (2.2 in)	38 of 100 (Notable)
Kottarakara	India	Record daily precipitation	161.3 mm (6.4 in)	37 of 100 (Notable)
Syracuse 1NE	United States	Record daily precipitation	73.7 mm (2.9 in)	37 of 100 (Notable)
Houlton	United States	Record daily precipitation	38.6 mm (1.5 in)	37 of 100 (Notable)
De Ruyter 4 N	United States	Record daily precipitation	46.2 mm (1.8 in)	37 of 100 (Notable)
Mays Point Lock 25	United States	Record daily precipitation	55.9 mm (2.2 in)	37 of 100 (Notable)
Schwerin	Germany	Record daily precipitation	42.3 mm (1.7 in)	36 of 100 (Notable)
Moorestown 4 E	United States	Record daily precipitation	49.8 mm (2.0 in)	36 of 100 (Notable)
Hardwick	United States	Record daily precipitation	61.0 mm (2.4 in)	35 of 100 (Notable)
Heath	United States	Record daily precipitation	64.8 mm (2.6 in)	35 of 100 (Notable)
Karabulak	Russia	Record daily precipitation	34.9 mm (1.4 in)	34 of 100 (Routine)
Citronelle	United States	Record high minimum temperature	27.8 C (82.0 F)	34 of 100 (Routine)
Cayuga Lock #1	United States	Record daily precipitation	71.1 mm (2.8 in)	34 of 100 (Routine)
Seal Rocks Camping Reserve	Australia	Record daily precipitation	61.5 mm (2.4 in)	33 of 100 (Routine)
Bassum (A)	Germany	Record daily precipitation	40.0 mm (1.6 in)	33 of 100 (Routine)
Morrisville 6 SW	United States	Record daily precipitation	54.9 mm (2.2 in)	33 of 100 (Routine)
Jhalod	India	Record daily precipitation	97.0 mm (3.8 in)	32 of 100 (Routine)
Indian Mills 2 W	United States	Record daily precipitation	44.2 mm (1.7 in)	32 of 100 (Routine)
Canajoharie	United States	Record daily precipitation	35.8 mm (1.4 in)	32 of 100 (Routine)
Parsons 3 SE	United States	Record daily precipitation	43.9 mm (1.7 in)	32 of 100 (Routine)
Chapala	Mexico	Record daily precipitation	73.2 mm (2.9 in)	31 of 100 (Routine)
Kalacinsk	Russia	Record daily precipitation	57.1 mm (2.2 in)	31 of 100 (Routine)
Lugano	Switzerland	Record low maximum temperature	19.4 C (66.9 F)	31 of 100 (Routine)
Hubbardston	United States	Record daily precipitation	74.4 mm (2.9 in)	31 of 100 (Routine)
Rayne 6 N	United States	Record high minimum temperature	25.0 C (77.0 F)	30 of 100 (Routine)
Bay Saint Louis	United States	Record high minimum temperature	26.1 C (79.0 F)	30 of 100 (Routine)
Mays Mill	United States	Record daily precipitation	67.1 mm (2.6 in)	30 of 100 (Routine)
Simferopol	Ukraine	Record daily precipitation	33.8 mm (1.3 in)	29 of 100 (Routine)
Tallulah	United States	Record high minimum temperature	26.1 C (79.0 F)	29 of 100 (Routine)
Caledonia	United States	Record low minimum temperature	10.0 C (50.0 F)	29 of 100 (Routine)
La Sal	United States	Record daily precipitation	31.5 mm (1.2 in)	29 of 100 (Routine)
Dwellingup	Australia	Record daily precipitation	69.1 mm (2.7 in)	28 of 100 (Routine)
Nedumangad	India	Record daily precipitation	74.9 mm (2.9 in)	28 of 100 (Routine)
Jonkoping	Sweden	Record low minimum temperature	6.3 C (43.3 F)	28 of 100 (Routine)
Fairhope 2 NE	United States	Record high minimum temperature	26.1 C (79.0 F)	28 of 100 (Routine)
Frisco City 3 SSW	United States	Record daily precipitation	74.9 mm (2.9 in)	28 of 100 (Routine)
Farmerville	United States	Record high minimum temperature	25.0 C (77.0 F)	28 of 100 (Routine)
Shelburne Falls	United States	Record daily precipitation	62.0 mm (2.4 in)	28 of 100 (Routine)
Farmington	United States	Record daily precipitation	26.7 mm (1.1 in)	27 of 100 (Routine)
Oshkosh	United States	Record low minimum temperature	6.7 C (44.1 F)	27 of 100 (Routine)
Telenning Hill	Australia	Record daily precipitation	30.0 mm (1.2 in)	26 of 100 (Routine)
Mundau	Brazil	Record daily precipitation	26.0 mm (1.0 in)	26 of 100 (Routine)
Ahmadabad	India	Record daily precipitation	85.9 mm (3.4 in)	26 of 100 (Routine)
Riva	Italy	Record low minimum temperature	11.0 C (51.8 F)	26 of 100 (Routine)

Counts by Type and Timescale

469 records

Records set or tied on 20 July 1966 by type: Highest daily maximum 34, Lowest daily maximum 40, Highest daily minimum 116, Lowest daily minimum 52, Heaviest daily rainfall 227.

Records on 20 July 1966 by type
Record type	Records
Highest daily maximum	34
Lowest daily maximum	40
Highest daily minimum	116
Lowest daily minimum	52
Heaviest daily rainfall	227
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 July 1966 by timescale: all-time 2, monthly 7, daily 460.

How Much Records Were Beaten By

377 broken records

Margins by which the 377 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 70.5. Ties are not counted.

Top 20 by Significance

20 July 1966

Top 20 records on 20 July 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 July 1966	Amherst, US	daily rain	81.3 mm (3.2 in)	46.0 mm (1.8 in)	64 years	66 of 100 (Major)
20 July 1966	Goldberg, DE	daily rain	55.7 mm (2.2 in)	29.7 mm (1.2 in)	53 years	63 of 100 (Major)
20 July 1966	Oktjabrskij-Gorodok, RU	monthly rain	58.0 mm (2.3 in)	16.2 mm (0.6 in)	54 years	62 of 100 (Major)
20 July 1966	Tribes Hill, US	daily rain	74.4 mm (2.9 in)	59.9 mm (2.4 in)	24 years	53 of 100 (Notable)
20 July 1966	Tuckerton 2 NE, US	daily rain	76.7 mm (3.0 in)	56.1 mm (2.2 in)	28 years	52 of 100 (Notable)
20 July 1966	Chelsea, US	daily rain	53.8 mm (2.1 in)	27.1 mm (1.1 in)	69 years	52 of 100 (Notable)
20 July 1966	Skaneateles, US	daily rain	66.3 mm (2.6 in)	33.3 mm (1.3 in)	37 years	49 of 100 (Notable)
20 July 1966	Teterow, DE	daily rain	39.2 mm (1.5 in)	21.1 mm (0.8 in)	35 years	47 of 100 (Notable)
20 July 1966	Toms River, US	daily rain	58.9 mm (2.3 in)	36.8 mm (1.4 in)	68 years	47 of 100 (Notable)
20 July 1966	Ipira (Camisao), BR	daily rain	84.0 mm (3.3 in)	70.5 mm (2.8 in)	5 years	46 of 100 (Notable)
20 July 1966	Sao Bento Do Una, BR	daily rain	26.2 mm (1.0 in)	17.9 mm (0.7 in)	15 years	42 of 100 (Notable)
20 July 1966	Urjupinsk, RU	daily rain	35.4 mm (1.4 in)	12.2 mm (0.5 in)	48 years	39 of 100 (Notable)
20 July 1966	Millinocket, US	daily rain	63.5 mm (2.5 in)	28.4 mm (1.1 in)	15 years	39 of 100 (Notable)
20 July 1966	Grenfell, CA	daily rain	35.1 mm (1.4 in)	17.3 mm (0.7 in)	37 years	38 of 100 (Notable)
20 July 1966	Soltau, DE	daily rain	34.3 mm (1.4 in)	11.0 mm (0.4 in)	53 years	38 of 100 (Notable)
20 July 1966	Ozark 6 NNW, US	daily rain	53.1 mm (2.1 in)	31.3 mm (1.2 in)	47 years	38 of 100 (Notable)
20 July 1966	Chesterfield, US	daily rain	56.9 mm (2.2 in)	31.5 mm (1.2 in)	23 years	38 of 100 (Notable)
20 July 1966	Kottarakara, IN	monthly rain	161.3 mm (6.4 in)	18.3 mm (0.7 in)	42 years	37 of 100 (Notable)
20 July 1966	Syracuse 1NE, US	daily rain	73.7 mm (2.9 in)	22.9 mm (0.9 in)	40 years	37 of 100 (Notable)
20 July 1966	Houlton, US	daily rain	38.6 mm (1.5 in)	13.2 mm (0.5 in)	56 years	37 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

1809 to 1966

Records set or tied on this calendar date in each year from 1809 to 1966. 1966 had 469 records.

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

Records on 07-20 in each year
Year	Records
1809	1
1810	1
1811	2
1832	2
1844	2
1850	1
1859	2
1863	1
1865	4
1866	1
1867	1
1868	1
1870	1
1872	1
1874	2
1876	1
1877	2
1879	3
1880	1
1881	2
1882	1
1883	2
1885	1
1886	2
1887	1
1888	1
1889	2
1890	5
1892	7
1893	1
1894	1
1895	1
1897	4
1898	2
1899	4
1900	9
1901	3
1902	13
1903	6
1904	10
1905	6
1906	8
1907	12
1908	31
1909	6
1910	27
1911	12
1912	33
1913	28
1914	20
1915	163
1916	117
1917	57
1918	53
1919	40
1920	16
1921	55
1922	52
1923	173
1924	112
1925	125
1926	411
1927	106
1928	366
1929	480
1930	598
1931	362
1932	338
1933	201
1934	857
1935	386
1936	358
1937	213
1938	392
1939	336
1940	325
1941	270
1942	609
1943	326
1944	470
1945	278
1946	482
1947	635
1948	385
1949	807
1950	563
1951	448
1952	488
1953	316
1954	512
1955	377
1956	545
1957	351
1958	536
1959	605
1960	758
1961	338
1962	327
1963	457
1964	416
1965	1,110
1966	469
1967	455
1968	389
1969	649
1970	890
1971	619
1972	1,062
1973	804
1974	489
1975	470
1976	580
1977	899
1978	663
1979	1,249
1980	925
1981	1,048
1982	580
1983	1,117
1984	799
1985	604
1986	848
1987	1,156
1988	1,103
1989	1,183
1990	724
1991	1,024
1992	1,137
1993	901
1994	611
1995	961
1996	1,365
1997	903
1998	1,682
1999	815
2000	1,393
2001	755
2002	986
2003	1,313
2004	978
2005	1,266
2006	1,487
2007	1,124
2008	663
2009	1,533
2010	1,154
2011	1,339
2012	817
2013	850
2014	1,000
2015	812
2016	744
2017	398
2018	930
2019	867
2020	524
2021	683
2022	1,108
2023	812
2024	737
2025	680
2026	863

Download the Data

Data for records on 1966-07-20: 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 10	299
10 to 20	46
20 to 30	18
30 to 40	9
40 to 50	2
50 to 60	2
60 to 70	0
70 to 80	1