Weather Records on 12 April 1966

520 weather records were set or tied worldwide on 12 April 1966. Highest significance: Frei Paulo, BR.

Key Facts for 12 April 1966

On 12 April 1966, 520 weather records were set or tied at long-record stations worldwide.
30 were record highs and 199 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 13 monthly and 505 daily.
Frei Paulo set a daily record precipitation of 71.4 mm (2.8 in) on 12 April 1966.
Across 161 earlier years (1793 to 2026) the same calendar date averaged 501 records.

Record Map

520 stations

520 station records on 12 April 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 April 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Frei Paulo	Brazil	Record daily precipitation	71.4 mm (2.8 in)	60 of 100 (Major)
Araci	Brazil	Record daily precipitation	105.0 mm (4.1 in)	60 of 100 (Major)
Ipira (Camisao)	Brazil	Record daily precipitation	70.3 mm (2.8 in)	58 of 100 (Notable)
Taylorsville 2SW	United States	Record daily precipitation	60.5 mm (2.4 in)	49 of 100 (Notable)
Ouro Branco (Manairama)	Brazil	Record daily precipitation	90.0 mm (3.5 in)	48 of 100 (Notable)
Quebrangulo	Brazil	Record daily precipitation	135.6 mm (5.3 in)	47 of 100 (Notable)
Erbent	Turkmenistan	Record daily precipitation	36.0 mm (1.4 in)	46 of 100 (Notable)
Versailles	United States	Record daily precipitation	37.1 mm (1.5 in)	46 of 100 (Notable)
Sao Joao Do Tigre	Brazil	Record daily precipitation	86.7 mm (3.4 in)	44 of 100 (Notable)
Salvisa Lock 6	United States	Record daily precipitation	53.8 mm (2.1 in)	44 of 100 (Notable)
Telkwa	Canada	Record low minimum temperature	-18.3 C (-0.9 F)	43 of 100 (Notable)
Cabaceiras	Brazil	Record daily precipitation	59.0 mm (2.3 in)	42 of 100 (Notable)
Dom Mauricio	Brazil	Record daily precipitation	115.6 mm (4.6 in)	41 of 100 (Notable)
Uppsala_Aut	Sweden	Record low maximum temperature	-2.4 C (27.7 F)	41 of 100 (Notable)
Acude Rio Do Peixe	Brazil	Record daily precipitation	40.3 mm (1.6 in)	40 of 100 (Notable)
Fort St James	Canada	Record low minimum temperature	-20.0 C (-4.0 F)	40 of 100 (Notable)
Putbus	Germany	Record low maximum temperature	0.4 C (32.7 F)	40 of 100 (Notable)
Acude Gargalheiras	Brazil	Record daily precipitation	137.0 mm (5.4 in)	39 of 100 (Notable)
College Hill Lock 11	United States	Record daily precipitation	41.1 mm (1.6 in)	39 of 100 (Notable)
Richmond	United States	Record daily precipitation	47.0 mm (1.9 in)	39 of 100 (Notable)
Estancia	Brazil	Record daily precipitation	65.6 mm (2.6 in)	38 of 100 (Notable)
Serrinha	Brazil	Record daily precipitation	61.0 mm (2.4 in)	38 of 100 (Notable)
Caraubas (Caraibeiras)	Brazil	Record daily precipitation	88.3 mm (3.5 in)	37 of 100 (Notable)
Bjuraker	Sweden	Record low maximum temperature	-3.0 C (26.6 F)	37 of 100 (Notable)
Hot Springs 1 NNE	United States	Record high minimum temperature	18.9 C (66.0 F)	37 of 100 (Notable)
Le Roy	United States	Record daily precipitation	53.1 mm (2.1 in)	37 of 100 (Notable)
Valley View Lock 9	United States	Record daily precipitation	46.2 mm (1.8 in)	37 of 100 (Notable)
Fazenda Malhada da Areia	Brazil	Record daily precipitation	49.0 mm (1.9 in)	36 of 100 (Notable)
Brejo da Madre de Deus	Brazil	Record daily precipitation	81.0 mm (3.2 in)	36 of 100 (Notable)
Palmeiro Dos Indios	Brazil	Record daily precipitation	48.3 mm (1.9 in)	36 of 100 (Notable)
Quilon Pwd	India	Record daily precipitation	129.5 mm (5.1 in)	36 of 100 (Notable)
Nordby (Fano)	Denmark	Record low maximum temperature	1.6 C (34.9 F)	35 of 100 (Notable)
Amasia	Armenia	Record daily precipitation	41.5 mm (1.6 in)	34 of 100 (Routine)
Floresta	Brazil	Record daily precipitation	77.7 mm (3.1 in)	34 of 100 (Routine)
Estevan Point	Canada	Record daily snowfall	6.1 cm (2.4 in)	34 of 100 (Routine)
Wistaria	Canada	Record low minimum temperature	-18.9 C (-2.0 F)	34 of 100 (Routine)
Lamar	United States	Record daily precipitation	26.2 mm (1.0 in)	34 of 100 (Routine)
Cottonwood Falls	United States	Record daily precipitation	30.0 mm (1.2 in)	34 of 100 (Routine)
Neosho Rapids	United States	Record daily precipitation	38.4 mm (1.5 in)	34 of 100 (Routine)
Ipswich	United States	Record daily snowfall	5.1 cm (2.0 in)	34 of 100 (Routine)
Wauneta	United States	Record daily snowfall	5.1 cm (2.0 in)	33 of 100 (Routine)
Acude Salao	Brazil	Record daily precipitation	68.0 mm (2.7 in)	32 of 100 (Routine)
Simao Dias (Anapolis)	Brazil	Record daily precipitation	44.5 mm (1.8 in)	32 of 100 (Routine)
Wrixum/Fohr	Germany	Record low maximum temperature	1.0 C (33.8 F)	32 of 100 (Routine)
Masindi	Uganda	Record daily precipitation	43.6 mm (1.7 in)	32 of 100 (Routine)
Lebo	United States	Record daily precipitation	37.6 mm (1.5 in)	32 of 100 (Routine)
Leola	United States	Record daily snowfall	5.1 cm (2.0 in)	32 of 100 (Routine)
Drummonds	Australia	Record daily precipitation	26.9 mm (1.1 in)	31 of 100 (Routine)
Currais Novos	Brazil	Record daily precipitation	100.2 mm (3.9 in)	31 of 100 (Routine)
Belem de Sao Francisco	Brazil	Record daily precipitation	50.0 mm (2.0 in)	31 of 100 (Routine)
Jeremoabo	Brazil	Record daily precipitation	25.0 mm (1.0 in)	30 of 100 (Routine)
Husum	Germany	Record low maximum temperature	1.0 C (33.8 F)	30 of 100 (Routine)
Lowestoft	United Kingdom	Record low maximum temperature	5.0 C (41.0 F)	30 of 100 (Routine)
Brockton	United States	Record low minimum temperature	-3.3 C (26.1 F)	30 of 100 (Routine)
Quesnel	Canada	Record low maximum temperature	3.9 C (39.0 F)	29 of 100 (Routine)
Lake Louise	Canada	Record daily snowfall	20.3 cm (8.0 in)	29 of 100 (Routine)
Chita	Russia	Record low minimum temperature	-18.7 C (-1.7 F)	29 of 100 (Routine)
Vanersborg	Sweden	Record low maximum temperature	-2.5 C (27.5 F)	29 of 100 (Routine)
Sveg	Sweden	Record low minimum temperature	-21.7 C (-7.1 F)	29 of 100 (Routine)
Ketchikan AP	United States	Record low minimum temperature	-5.0 C (23.0 F)	29 of 100 (Routine)

Counts by Type and Timescale

520 records

Records set or tied on 12 April 1966 by type: Highest daily maximum 15, Lowest daily maximum 118, Highest daily minimum 15, Lowest daily minimum 81, Heaviest daily rainfall 254, Heaviest daily snowfall 27, Deepest snow cover 10.

Records on 12 April 1966 by type
Record type	Records
Highest daily maximum	15
Lowest daily maximum	118
Highest daily minimum	15
Lowest daily minimum	81
Heaviest daily rainfall	254
Heaviest daily snowfall	27
Deepest snow cover	10

Records on 12 April 1966 by timescale: all-time 2, monthly 13, daily 505.

How Much Records Were Beaten By

457 broken records

Margins by which the 457 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 190.0. Ties are not counted.

Top 20 by Significance

12 April 1966

Top 20 records on 12 April 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 April 1966	Frei Paulo, BR	daily rain	71.4 mm (2.8 in)	60.7 mm (2.4 in)	52 years	60 of 100 (Major)
12 April 1966	Araci, BR	monthly rain	105.0 mm (4.1 in)	37.3 mm (1.5 in)	48 years	60 of 100 (Major)
12 April 1966	Ipira (Camisao), BR	daily rain	70.3 mm (2.8 in)	40.6 mm (1.6 in)	45 years	58 of 100 (Notable)
12 April 1966	Taylorsville 2SW, US	daily rain	60.5 mm (2.4 in)	32.1 mm (1.3 in)	56 years	49 of 100 (Notable)
12 April 1966	Ouro Branco (Manairama), BR	daily rain	90.0 mm (3.5 in)	81.5 mm (3.2 in)	17 years	48 of 100 (Notable)
12 April 1966	Quebrangulo, BR	monthly rain	135.6 mm (5.3 in)	37.1 mm (1.5 in)	31 years	47 of 100 (Notable)
12 April 1966	Erbent, TM	daily rain	36.0 mm (1.4 in)	34.4 mm (1.4 in)	12 years	46 of 100 (Notable)
12 April 1966	Versailles, US	daily rain	37.1 mm (1.5 in)	21.9 mm (0.9 in)	69 years	46 of 100 (Notable)
12 April 1966	Sao Joao Do Tigre, BR	daily rain	86.7 mm (3.4 in)	68.3 mm (2.7 in)	5 years	44 of 100 (Notable)
12 April 1966	Salvisa Lock 6, US	daily rain	53.8 mm (2.1 in)	29.9 mm (1.2 in)	25 years	44 of 100 (Notable)
12 April 1966	Telkwa, CA	daily low min	-18.3 C (-0.9 F)	10.5 C (18.9 F)	36 years	43 of 100 (Notable)
12 April 1966	Cabaceiras, BR	daily rain	59.0 mm (2.3 in)	38.6 mm (1.5 in)	24 years	42 of 100 (Notable)
12 April 1966	Dom Mauricio, BR	monthly rain	115.6 mm (4.6 in)	31.1 mm (1.2 in)	18 years	41 of 100 (Notable)
12 April 1966	Uppsala_Aut, SE	daily low max	-2.4 C (27.7 F)	1.4 C (2.5 F)	98 years	41 of 100 (Notable)
12 April 1966	Acude Rio Do Peixe, BR	daily rain	40.3 mm (1.6 in)	27.8 mm (1.1 in)	28 years	40 of 100 (Notable)
12 April 1966	Fort St James, CA	daily low min	-20.0 C (-4.0 F)	7.8 C (14.0 F)	55 years	40 of 100 (Notable)
12 April 1966	Putbus, DE	daily low max	0.4 C (32.7 F)	0.4 C (0.7 F)	103 years	40 of 100 (Notable)
12 April 1966	Acude Gargalheiras, BR	all-time rain	137.0 mm (5.4 in)	14.9 mm (0.6 in)	22 years	39 of 100 (Notable)
12 April 1966	College Hill Lock 11, US	daily rain	41.1 mm (1.6 in)	22.0 mm (0.9 in)	40 years	39 of 100 (Notable)
12 April 1966	Richmond, US	daily rain	47.0 mm (1.9 in)	25.7 mm (1.0 in)	17 years	39 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

1793 to 1966

Records set or tied on this calendar date in each year from 1793 to 1966. 1966 had 520 records.

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

Records on 04-12 in each year
Year	Records
1793	1
1805	1
1810	1
1812	2
1817	2
1826	1
1831	1
1845	1
1850	1
1854	1
1865	2
1866	2
1868	4
1869	5
1871	1
1873	1
1874	5
1876	2
1877	1
1878	1
1879	4
1881	1
1882	1
1885	2
1889	4
1890	10
1891	3
1892	2
1893	4
1894	1
1895	1
1896	1
1897	4
1898	4
1899	5
1900	6
1901	5
1902	3
1903	10
1904	11
1905	19
1906	24
1907	5
1908	10
1909	16
1910	15
1911	26
1912	48
1913	88
1914	41
1915	125
1916	37
1917	33
1918	40
1919	39
1920	148
1921	34
1922	48
1923	134
1924	69
1925	178
1926	347
1927	179
1928	145
1929	141
1930	638
1931	267
1932	253
1933	551
1934	531
1935	171
1936	277
1937	236
1938	175
1939	1,174
1940	1,407
1941	869
1942	191
1943	614
1944	423
1945	884
1946	347
1947	733
1948	1,496
1949	358
1950	638
1951	1,102
1952	455
1953	707
1954	424
1955	611
1956	382
1957	910
1958	542
1959	513
1960	314
1961	551
1962	510
1963	518
1964	363
1965	659
1966	520
1967	682
1968	717
1969	352
1970	568
1971	587
1972	1,316
1973	903
1974	822
1975	704
1976	1,076
1977	1,069
1978	533
1979	1,096
1980	611
1981	1,068
1982	852
1983	877
1984	671
1985	734
1986	1,350
1987	606
1988	1,369
1989	1,838
1990	946
1991	1,484
1992	1,000
1993	586
1994	1,375
1995	1,173
1996	994
1997	3,094
1998	1,409
1999	873
2000	784
2001	1,369
2002	600
2003	1,079
2004	964
2005	536
2006	796
2007	1,144
2008	1,015
2009	811
2010	935
2011	1,026
2012	666
2013	1,039
2014	597
2015	504
2016	595
2017	519
2018	868
2019	685
2020	1,150
2021	710
2022	1,862
2023	1,262
2024	1,086
2025	1,281
2026	622

Download the Data

Data for records on 1966-04-12: 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 25	409
25 to 50	29
50 to 75	14
75 to 100	1
100 to 125	0
125 to 150	1
150 to 175	2
175 to 200	1