Weather Records on 7 April 1966

302 weather records were set or tied worldwide on 7 April 1966. Highest significance: Euclides da Cunha (Cumbe), BR.

Key Facts for 7 April 1966

On 7 April 1966, 302 weather records were set or tied at long-record stations worldwide.
75 were record highs and 86 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 294 daily.
Euclides da Cunha (Cumbe) set a daily record precipitation of 60.4 mm (2.4 in) on 7 April 1966.
Across 165 earlier years (1800 to 2026) the same calendar date averaged 480 records.

Record Map

302 stations

302 station records on 7 April 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 7 April 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Euclides da Cunha (Cumbe)	Brazil	Record daily precipitation	60.4 mm (2.4 in)	53 of 100 (Notable)
Estancia	Brazil	Record daily precipitation	73.4 mm (2.9 in)	52 of 100 (Notable)
Piaxtla	Mexico	Record low maximum temperature	25.0 C (77.0 F)	51 of 100 (Notable)
Sandusky	United States	Record daily snowfall	15.2 cm (6.0 in)	50 of 100 (Notable)
Pithara	Australia	Record daily precipitation	65.8 mm (2.6 in)	49 of 100 (Notable)
Ponte Guatapara	Brazil	Record daily precipitation	60.0 mm (2.4 in)	45 of 100 (Notable)
Ilhota-Jusante	Brazil	Record daily precipitation	107.4 mm (4.2 in)	44 of 100 (Notable)
Milan	Italy	Record high minimum temperature	14.6 C (58.3 F)	42 of 100 (Notable)
Harbor Beach 1 SSE	United States	Record daily snowfall	8.9 cm (3.5 in)	42 of 100 (Notable)
Maun	Botswana	Record daily precipitation	46.8 mm (1.8 in)	37 of 100 (Notable)
Penedo	Brazil	Record daily precipitation	50.0 mm (2.0 in)	34 of 100 (Routine)
Ribeirao Preto (Emsa)	Brazil	Record daily precipitation	44.5 mm (1.8 in)	33 of 100 (Routine)
Cananeia G4-001	Brazil	Record daily precipitation	77.0 mm (3.0 in)	32 of 100 (Routine)
Macaubas	Brazil	Record daily precipitation	32.2 mm (1.3 in)	31 of 100 (Routine)
Barrinha	Brazil	Record daily precipitation	88.2 mm (3.5 in)	30 of 100 (Routine)
Latham	Australia	Record daily precipitation	38.9 mm (1.5 in)	29 of 100 (Routine)
Joao Amaro	Brazil	Record daily precipitation	71.0 mm (2.8 in)	28 of 100 (Routine)
Iramuco	Mexico	Record daily precipitation	25.9 mm (1.0 in)	28 of 100 (Routine)
Beulah	United States	Record high maximum temperature	25.0 C (77.0 F)	28 of 100 (Routine)
Queimadas	Brazil	Record daily precipitation	39.6 mm (1.6 in)	27 of 100 (Routine)
Heaslip	Canada	Record daily snowfall	5.1 cm (2.0 in)	27 of 100 (Routine)
Koebenhavn: Landbohojskolen-1	Denmark	Record low maximum temperature	3.8 C (38.8 F)	27 of 100 (Routine)
Valdosta 2 S	United States	Record low minimum temperature	2.8 C (37.0 F)	27 of 100 (Routine)
Ishpeming	United States	Record daily snowfall	20.3 cm (8.0 in)	27 of 100 (Routine)
Mindalla	Australia	Record daily precipitation	25.4 mm (1.0 in)	26 of 100 (Routine)
Badarwah	India	Record daily precipitation	60.0 mm (2.4 in)	26 of 100 (Routine)
Hamond (Cpef)	Brazil	Record daily precipitation	74.0 mm (2.9 in)	25 of 100 (Routine)
Jeremoabo	Brazil	Record daily precipitation	42.0 mm (1.7 in)	25 of 100 (Routine)
Laranjeiras	Brazil	Record daily precipitation	35.5 mm (1.4 in)	25 of 100 (Routine)
Barreiras	Brazil	Record daily precipitation	29.7 mm (1.2 in)	24 of 100 (Routine)
Bom Jesus da Lapa	Brazil	Record daily precipitation	40.2 mm (1.6 in)	24 of 100 (Routine)
New Hazelton	Canada	Record high maximum temperature	22.2 C (72.0 F)	24 of 100 (Routine)
Dudinka	Russia	Record low minimum temperature	-39.7 C (-39.5 F)	24 of 100 (Routine)
Hawthorne AP	United States	Record high maximum temperature	29.4 C (84.9 F)	24 of 100 (Routine)
Iguape	Brazil	Record daily precipitation	66.9 mm (2.6 in)	23 of 100 (Routine)
Poco Das Trincheiras	Brazil	Record daily precipitation	38.1 mm (1.5 in)	23 of 100 (Routine)
Condeuba	Brazil	Record daily precipitation	42.0 mm (1.7 in)	23 of 100 (Routine)
Sydney (Observatory Hill)	Australia	Record high maximum temperature	30.2 C (86.4 F)	22 of 100 (Routine)
Jaboticabal (Cpef)	Brazil	Record daily precipitation	51.5 mm (2.0 in)	22 of 100 (Routine)
Jequie	Brazil	Record daily precipitation	33.5 mm (1.3 in)	22 of 100 (Routine)
Madawaska	Canada	Record daily snowfall	10.2 cm (4.0 in)	22 of 100 (Routine)
Calaveras Big Trees	United States	Record high maximum temperature	29.4 C (84.9 F)	22 of 100 (Routine)
Nossa Senhora da Gloria	Brazil	Record daily precipitation	30.2 mm (1.2 in)	21 of 100 (Routine)
Santa Cruz Juventino Rosas (S	Mexico	Record low maximum temperature	25.6 C (78.1 F)	21 of 100 (Routine)
Nes Pa Hedmark	Norway	Record snow depth	92.0 cm (36.2 in)	21 of 100 (Routine)
Vik I Sogn III	Norway	Record snow depth	13.0 cm (5.1 in)	21 of 100 (Routine)
Irapuato	Mexico	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Anadyr	Russia	Record daily precipitation	11.0 mm (0.4 in)	20 of 100 (Routine)
Ballantine	United States	Record daily precipitation	19.3 mm (0.8 in)	20 of 100 (Routine)
Indus	India	Record daily precipitation	10.6 mm (0.4 in)	20 of 100 (Routine)
Maya	Australia	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Midland 2	United States	Record daily snowfall	3.0 cm (1.2 in)	20 of 100 (Routine)
Montpelier	United States	Record daily snowfall	0.8 cm (0.3 in)	20 of 100 (Routine)
Moorcroft 3S	United States	Record daily precipitation	9.7 mm (0.38 in)	20 of 100 (Routine)
Sundance	United States	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Fairfield	Australia	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
St Thomas	Canada	Record daily snowfall	3.8 cm (1.5 in)	20 of 100 (Routine)
Ashland 2 SW	United States	Record daily snowfall	2.5 cm (1.0 in)	20 of 100 (Routine)
Saginaw Mbs Intl AP	United States	Record daily snowfall	2.5 cm (1.0 in)	20 of 100 (Routine)
Manavi	Australia	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)

Counts by Type and Timescale

302 records

Records set or tied on 7 April 1966 by type: Highest daily maximum 50, Lowest daily maximum 41, Highest daily minimum 25, Lowest daily minimum 45, Heaviest daily rainfall 101, Heaviest daily snowfall 30, Deepest snow cover 10.

Records on 7 April 1966 by type
Record type	Records
Highest daily maximum	50
Lowest daily maximum	41
Highest daily minimum	25
Lowest daily minimum	45
Heaviest daily rainfall	101
Heaviest daily snowfall	30
Deepest snow cover	10

Records on 7 April 1966 by timescale: all-time 0, monthly 8, daily 294.

How Much Records Were Beaten By

236 broken records

Margins by which the 236 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 250.0. Ties are not counted.

Top 20 by Significance

7 April 1966

Top 20 records on 7 April 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
7 April 1966	Euclides da Cunha (Cumbe), BR	daily rain	60.4 mm (2.4 in)	46.0 mm (1.8 in)	28 years	53 of 100 (Notable)
7 April 1966	Estancia, BR	daily rain	73.4 mm (2.9 in)	60.4 mm (2.4 in)	29 years	52 of 100 (Notable)
7 April 1966	Piaxtla, MX	daily low max	25.0 C (77.0 F)	7.8 C (14.0 F)	28 years	51 of 100 (Notable)
7 April 1966	Sandusky, US	daily snowfall	15.2 cm (6.0 in)	12.7 cm (5.0 in)	36 years	50 of 100 (Notable)
7 April 1966	Pithara, AU	daily rain	65.8 mm (2.6 in)	62.5 mm (2.5 in)	23 years	49 of 100 (Notable)
7 April 1966	Ponte Guatapara, BR	daily rain	60.0 mm (2.4 in)	46.5 mm (1.8 in)	36 years	45 of 100 (Notable)
7 April 1966	Ilhota-Jusante, BR	daily rain	107.4 mm (4.2 in)	69.2 mm (2.7 in)	0 years	44 of 100 (Notable)
7 April 1966	Milan, IT	daily high min	14.6 C (58.3 F)	0.8 C (1.4 F)	150 years	42 of 100 (Notable)
7 April 1966	Harbor Beach 1 SSE, US	daily snowfall	8.9 cm (3.5 in)	7.6 cm (3.0 in)	36 years	42 of 100 (Notable)
7 April 1966	Maun, BW	daily rain	46.8 mm (1.8 in)	27.0 mm (1.1 in)	15 years	37 of 100 (Notable)
7 April 1966	Penedo, BR	daily rain	50.0 mm (2.0 in)	20.0 mm (0.8 in)	48 years	34 of 100 (Routine)
7 April 1966	Ribeirao Preto (Emsa), BR	daily rain	44.5 mm (1.8 in)	26.5 mm (1.0 in)	13 years	33 of 100 (Routine)
7 April 1966	Cananeia G4-001, BR	daily rain	77.0 mm (3.0 in)	23.0 mm (0.9 in)	48 years	32 of 100 (Routine)
7 April 1966	Macaubas, BR	daily rain	32.2 mm (1.3 in)	21.0 mm (0.8 in)	40 years	31 of 100 (Routine)
7 April 1966	Barrinha, BR	daily rain	88.2 mm (3.5 in)	68.0 mm (2.7 in)	20 years	30 of 100 (Routine)
7 April 1966	Latham, AU	daily rain	38.9 mm (1.5 in)	33.1 mm (1.3 in)	5 years	29 of 100 (Routine)
7 April 1966	Joao Amaro, BR	monthly rain	71.0 mm (2.8 in)	0.8 mm (0.03 in)	45 years	28 of 100 (Routine)
7 April 1966	Iramuco, MX	daily rain	25.9 mm (1.0 in)	21.8 mm (0.9 in)	8 years	28 of 100 (Routine)
7 April 1966	Beulah, US	daily high max	25.0 C (77.0 F)	1.1 C (2.0 F)	65 years	28 of 100 (Routine)
7 April 1966	Queimadas, BR	daily rain	39.6 mm (1.6 in)	15.1 mm (0.6 in)	36 years	27 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

1800 to 1966

Records set or tied on this calendar date in each year from 1800 to 1966. 1966 had 302 records.

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

Records on 04-07 in each year
Year	Records
1800	1
1808	1
1809	3
1811	1
1815	2
1839	1
1844	1
1851	1
1854	2
1858	2
1859	1
1863	1
1864	4
1865	1
1866	2
1868	1
1870	1
1871	1
1872	1
1875	2
1876	2
1880	1
1881	3
1882	1
1883	2
1884	1
1885	2
1886	2
1887	1
1888	1
1890	3
1891	2
1893	3
1894	3
1895	2
1896	3
1897	7
1898	3
1899	8
1900	5
1901	6
1902	14
1903	10
1904	11
1905	12
1906	2
1907	33
1908	20
1909	33
1910	24
1911	24
1912	59
1913	55
1914	23
1915	33
1916	62
1917	83
1918	37
1919	157
1920	63
1921	319
1922	57
1923	83
1924	138
1925	152
1926	343
1927	99
1928	378
1929	835
1930	327
1931	406
1932	132
1933	174
1934	230
1935	381
1936	1,184
1937	170
1938	803
1939	956
1940	294
1941	258
1942	420
1943	720
1944	166
1945	356
1946	397
1947	278
1948	734
1949	237
1950	1,030
1951	311
1952	491
1953	425
1954	514
1955	198
1956	458
1957	293
1958	358
1959	384
1960	532
1961	665
1962	572
1963	630
1964	457
1965	342
1966	302
1967	569
1968	302
1969	449
1970	494
1971	1,260
1972	1,290
1973	722
1974	576
1975	1,305
1976	329
1977	1,050
1978	686
1979	691
1980	497
1981	353
1982	3,747
1983	1,517
1984	583
1985	599
1986	901
1987	724
1988	1,402
1989	1,386
1990	813
1991	2,007
1992	693
1993	590
1994	1,144
1995	897
1996	1,112
1997	1,996
1998	1,231
1999	898
2000	634
2001	1,556
2002	755
2003	2,205
2004	554
2005	1,002
2006	856
2007	2,249
2008	807
2009	1,183
2010	1,691
2011	1,187
2012	514
2013	693
2014	936
2015	658
2016	793
2017	692
2018	1,980
2019	604
2020	529
2021	758
2022	818
2023	844
2024	1,360
2025	645
2026	381

Download the Data

Data for records on 1966-04-07: 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	221
50 to 100	10
100 to 150	3
150 to 200	1
200 to 250	1