Weather Records on 3 July 1966

780 weather records were set or tied worldwide on 3 July 1966. Highest significance: Huajuapan de Leon (Smn), MX.

Key Facts for 3 July 1966

On 3 July 1966, 780 weather records were set or tied at long-record stations worldwide.
352 were record highs and 212 were record lows, counting maximum and minimum temperature.
By timescale, 8 were all-time records, 58 monthly and 714 daily.
Huajuapan de Leon (Smn) set an all-time record daily precipitation of 261.9 mm (10.3 in) on 3 July 1966.
Across 162 earlier years (1793 to 2026) the same calendar date averaged 431 records.

Record Map

780 stations

780 station records on 3 July 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 3 July 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Huajuapan de Leon (Smn)	Mexico	Record daily precipitation	261.9 mm (10.3 in)	64 of 100 (Major)
Kipawa Laniel	Canada	Record daily precipitation	64.0 mm (2.5 in)	56 of 100 (Notable)
Carnaubas	Brazil	Record daily precipitation	94.0 mm (3.7 in)	55 of 100 (Notable)
Mendubim	Brazil	Record daily precipitation	112.0 mm (4.4 in)	54 of 100 (Notable)
Vancouver 4 NNE	United States	Record daily precipitation	34.0 mm (1.3 in)	53 of 100 (Notable)
Belleville	Canada	Record high maximum temperature	35.0 C (95.0 F)	45 of 100 (Notable)
Ft Benton	United States	Record daily precipitation	32.0 mm (1.3 in)	44 of 100 (Notable)
Sunnyside	United States	Record low maximum temperature	14.4 C (57.9 F)	44 of 100 (Notable)
Ariel Dam	United States	Record daily precipitation	47.5 mm (1.9 in)	43 of 100 (Notable)
Ubiracu	Brazil	Record daily precipitation	28.5 mm (1.1 in)	42 of 100 (Notable)
Huntingdon	Canada	Record high maximum temperature	34.4 C (93.9 F)	42 of 100 (Notable)
Anacortes	United States	Record daily precipitation	25.9 mm (1.0 in)	41 of 100 (Notable)
Dom Mauricio	Brazil	Record daily precipitation	64.4 mm (2.5 in)	40 of 100 (Notable)
La Piedad de Cabadas (Dge)	Mexico	Record daily precipitation	72.4 mm (2.9 in)	40 of 100 (Notable)
Babuskin	Russia	Record low maximum temperature	10.0 C (50.0 F)	40 of 100 (Notable)
Grand Coteau	United States	Record low minimum temperature	17.8 C (64.0 F)	40 of 100 (Notable)
Poughkeepsie	United States	Record high maximum temperature	41.7 C (107.1 F)	40 of 100 (Notable)
Hood Rvr Exp STN	United States	Record low maximum temperature	13.3 C (55.9 F)	40 of 100 (Notable)
Koyah	India	Record daily precipitation	89.4 mm (3.5 in)	39 of 100 (Notable)
Kjahta	Russia	Record daily precipitation	41.1 mm (1.6 in)	38 of 100 (Notable)
Mill Creek	United States	Record daily precipitation	34.0 mm (1.3 in)	37 of 100 (Notable)
Huntingdon	Canada	Record high minimum temperature	21.1 C (70.0 F)	36 of 100 (Notable)
Hailey 3 NNW	United States	Record low minimum temperature	-1.7 C (28.9 F)	36 of 100 (Notable)
Blaine	United States	Record daily precipitation	26.7 mm (1.1 in)	36 of 100 (Notable)
Vancouver 4 NNE	United States	Record low maximum temperature	13.9 C (57.0 F)	36 of 100 (Notable)
Porto	Brazil	Record daily precipitation	34.2 mm (1.3 in)	35 of 100 (Notable)
Acude Velame	Brazil	Record daily precipitation	63.0 mm (2.5 in)	35 of 100 (Notable)
Lukojanov	Russia	Record daily precipitation	30.4 mm (1.2 in)	35 of 100 (Notable)
Chicoutimi	Canada	Record daily precipitation	29.2 mm (1.1 in)	34 of 100 (Routine)
Newark Ag Farm	United States	Record high maximum temperature	38.9 C (102.0 F)	34 of 100 (Routine)
Crater Lake Nps HQ	United States	Record daily snowfall	8.9 cm (3.5 in)	34 of 100 (Routine)
Coroata	Brazil	Record daily precipitation	34.0 mm (1.3 in)	33 of 100 (Routine)
Pelee Island	Canada	Record high minimum temperature	26.1 C (79.0 F)	33 of 100 (Routine)
St Hyacinthe	Canada	Record high minimum temperature	21.1 C (70.0 F)	33 of 100 (Routine)
Ulan-Ude	Russia	Record daily precipitation	34.8 mm (1.4 in)	33 of 100 (Routine)
Ny City Cntrl Park	United States	Record high maximum temperature	39.4 C (102.9 F)	33 of 100 (Routine)
Kamloops	Canada	Record low maximum temperature	14.4 C (57.9 F)	32 of 100 (Routine)
Hawthorne AP	United States	Record low minimum temperature	5.6 C (42.1 F)	32 of 100 (Routine)
Carlisle	United States	Record high maximum temperature	41.1 C (106.0 F)	32 of 100 (Routine)
Davenport	United States	Record low maximum temperature	14.4 C (57.9 F)	32 of 100 (Routine)
Bugaldie (Ulundi)	Australia	Record daily precipitation	31.2 mm (1.2 in)	31 of 100 (Routine)
Vernon Coldstream Ranch	Canada	Record low maximum temperature	13.3 C (55.9 F)	31 of 100 (Routine)
Lake Louise	Canada	Record daily precipitation	35.1 mm (1.4 in)	31 of 100 (Routine)
Ann Arbor U of Mich	United States	Record high minimum temperature	25.6 C (78.1 F)	31 of 100 (Routine)
Lake City Exp Farm	United States	Record high maximum temperature	35.6 C (96.1 F)	31 of 100 (Routine)
Big Falls	United States	Record daily precipitation	102.1 mm (4.0 in)	31 of 100 (Routine)
Tower 2S	United States	Record daily precipitation	56.4 mm (2.2 in)	31 of 100 (Routine)
Freehold-Marlboro	United States	Record high maximum temperature	38.9 C (102.0 F)	31 of 100 (Routine)
Van Wert 1 S	United States	Record high maximum temperature	37.2 C (99.0 F)	31 of 100 (Routine)
Grapeview 3 SW	United States	Record low maximum temperature	14.4 C (57.9 F)	31 of 100 (Routine)
White Swan Rs	United States	Record low maximum temperature	13.3 C (55.9 F)	31 of 100 (Routine)
Acude Pompeu Sobrinho	Brazil	Record daily precipitation	41.2 mm (1.6 in)	30 of 100 (Routine)
Banff	Canada	Record low maximum temperature	9.4 C (48.9 F)	30 of 100 (Routine)
Bijni	India	Record daily precipitation	135.1 mm (5.3 in)	30 of 100 (Routine)
Babuskin	Russia	Record daily precipitation	66.9 mm (2.6 in)	30 of 100 (Routine)
Dunkirk 19NNE	United States	Record daily precipitation	43.7 mm (1.7 in)	30 of 100 (Routine)
Middletown 2 NW	United States	Record high maximum temperature	36.7 C (98.1 F)	30 of 100 (Routine)
Tupper Lake Sunmount	United States	Record high maximum temperature	32.8 C (91.0 F)	30 of 100 (Routine)
Holtwood	United States	Record high maximum temperature	38.3 C (100.9 F)	30 of 100 (Routine)
Nespelem 2 S	United States	Record low maximum temperature	16.1 C (61.0 F)	30 of 100 (Routine)

Counts by Type and Timescale

780 records

Records set or tied on 3 July 1966 by type: Highest daily maximum 229, Lowest daily maximum 157, Highest daily minimum 123, Lowest daily minimum 55, Heaviest daily rainfall 215, Heaviest daily snowfall 1.

Records on 3 July 1966 by type
Record type	Records
Highest daily maximum	229
Lowest daily maximum	157
Highest daily minimum	123
Lowest daily minimum	55
Heaviest daily rainfall	215
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 3 July 1966 by timescale: all-time 8, monthly 58, daily 714.

How Much Records Were Beaten By

608 broken records

Margins by which the 608 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 142.0. Ties are not counted.

Top 20 by Significance

3 July 1966

Top 20 records on 3 July 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
3 July 1966	Huajuapan de Leon (Smn), MX	all-time rain	261.9 mm (10.3 in)	142.0 mm (5.6 in)	0 years	64 of 100 (Major)
3 July 1966	Kipawa Laniel, CA	daily rain	64.0 mm (2.5 in)	42.7 mm (1.7 in)	43 years	56 of 100 (Notable)
3 July 1966	Carnaubas, BR	monthly rain	94.0 mm (3.7 in)	43.4 mm (1.7 in)	8 years	55 of 100 (Notable)
3 July 1966	Mendubim, BR	monthly rain	112.0 mm (4.4 in)	59.2 mm (2.3 in)	3 years	54 of 100 (Notable)
3 July 1966	Vancouver 4 NNE, US	daily rain	34.0 mm (1.3 in)	15.2 mm (0.6 in)	59 years	53 of 100 (Notable)
3 July 1966	Belleville, CA	daily high max	35.0 C (95.0 F)	2.2 C (4.0 F)	97 years	45 of 100 (Notable)
3 July 1966	Ft Benton, US	daily rain	32.0 mm (1.3 in)	12.4 mm (0.5 in)	68 years	44 of 100 (Notable)
3 July 1966	Sunnyside, US	monthly low max	14.4 C (57.9 F)	3.4 C (6.1 F)	64 years	44 of 100 (Notable)
3 July 1966	Ariel Dam, US	monthly rain	47.5 mm (1.9 in)	15.5 mm (0.6 in)	25 years	43 of 100 (Notable)
3 July 1966	Ubiracu, BR	daily rain	28.5 mm (1.1 in)	17.8 mm (0.7 in)	23 years	42 of 100 (Notable)
3 July 1966	Huntingdon, CA	daily high max	34.4 C (93.9 F)	3.8 C (6.8 F)	77 years	42 of 100 (Notable)
3 July 1966	Anacortes, US	daily rain	25.9 mm (1.0 in)	14.7 mm (0.6 in)	27 years	41 of 100 (Notable)
3 July 1966	Dom Mauricio, BR	daily rain	64.4 mm (2.5 in)	45.2 mm (1.8 in)	1 year	40 of 100 (Notable)
3 July 1966	La Piedad de Cabadas (Dge), MX	daily rain	72.4 mm (2.9 in)	32.5 mm (1.3 in)	40 years	40 of 100 (Notable)
3 July 1966	Babuskin, RU	monthly low max	10.0 C (50.0 F)	1.0 C (1.8 F)	67 years	40 of 100 (Notable)
3 July 1966	Grand Coteau, US	daily low min	17.8 C (64.0 F)	2.2 C (4.0 F)	59 years	40 of 100 (Notable)
3 July 1966	Poughkeepsie, US	all-time high max	41.7 C (107.1 F)	1.7 C (3.1 F)	32 years	40 of 100 (Notable)
3 July 1966	Hood Rvr Exp STN, US	monthly low max	13.3 C (55.9 F)	1.1 C (2.0 F)	70 years	40 of 100 (Notable)
3 July 1966	Koyah, IN	daily rain	89.4 mm (3.5 in)	28.2 mm (1.1 in)	64 years	39 of 100 (Notable)
3 July 1966	Kjahta, RU	daily rain	41.1 mm (1.6 in)	9.1 mm (0.36 in)	64 years	38 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 780 records.

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

Records on 07-03 in each year
Year	Records
1793	2
1806	1
1812	1
1816	1
1825	1
1827	1
1836	1
1839	1
1844	1
1845	1
1855	1
1856	2
1857	3
1858	2
1863	1
1864	2
1870	3
1871	2
1872	2
1874	5
1876	1
1878	3
1879	2
1883	1
1885	1
1886	1
1888	1
1890	1
1891	3
1892	3
1894	4
1895	2
1896	1
1897	3
1898	5
1899	3
1900	5
1901	1
1902	6
1903	6
1904	21
1905	19
1906	12
1907	38
1908	18
1909	30
1910	17
1911	61
1912	36
1913	16
1914	55
1915	29
1916	28
1917	67
1918	55
1919	27
1920	179
1921	68
1922	73
1923	244
1924	290
1925	136
1926	140
1927	281
1928	84
1929	315
1930	581
1931	450
1932	326
1933	467
1934	396
1935	275
1936	523
1937	266
1938	294
1939	250
1940	383
1941	395
1942	428
1943	404
1944	498
1945	203
1946	243
1947	466
1948	242
1949	572
1950	479
1951	355
1952	346
1953	584
1954	384
1955	447
1956	528
1957	589
1958	414
1959	240
1960	717
1961	491
1962	547
1963	424
1964	896
1965	370
1966	780
1967	801
1968	729
1969	555
1970	605
1971	472
1972	986
1973	666
1974	685
1975	678
1976	888
1977	362
1978	1,268
1979	738
1980	959
1981	685
1982	913
1983	861
1984	738
1985	766
1986	1,183
1987	706
1988	1,100
1989	962
1990	1,197
1991	993
1992	1,371
1993	804
1994	950
1995	1,024
1996	872
1997	1,071
1998	862
1999	1,228
2000	667
2001	1,222
2002	1,251
2003	775
2004	767
2005	735
2006	943
2007	977
2008	839
2009	1,030
2010	1,310
2011	979
2012	933
2013	1,166
2014	661
2015	1,216
2016	785
2017	451
2018	923
2019	495
2020	378
2021	873
2022	737
2023	595
2024	670
2025	865
2026	1,036

Download the Data

Data for records on 1966-07-03: 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 20	592
20 to 40	10
40 to 60	4
60 to 80	0
80 to 100	1
100 to 120	0
120 to 140	0
140 to 160	1