Weather Records on 4 July 1966

473 weather records were set or tied worldwide on 4 July 1966. Highest significance: The Pas, CA.

Key Facts for 4 July 1966

On 4 July 1966, 473 weather records were set or tied at long-record stations worldwide.
292 were record highs and 76 were record lows, counting maximum and minimum temperature.
By timescale, 9 were all-time records, 12 monthly and 452 daily.
The Pas set a daily record precipitation of 45.7 mm (1.8 in) on 4 July 1966.
Across 163 earlier years (1806 to 2026) the same calendar date averaged 422 records.

Record Map

473 stations

473 station records on 4 July 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 July 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
The Pas	Canada	Record daily precipitation	45.7 mm (1.8 in)	42 of 100 (Notable)
Salvisa Lock 6	United States	Record daily precipitation	84.1 mm (3.3 in)	41 of 100 (Notable)
Biedenkopf	Germany	Record daily precipitation	39.2 mm (1.5 in)	39 of 100 (Notable)
High Brg Lock 7	United States	Record daily precipitation	53.8 mm (2.1 in)	39 of 100 (Notable)
Irkutsk	Russia	Record daily precipitation	31.0 mm (1.2 in)	38 of 100 (Notable)
Atlantic City Marina	United States	Record high maximum temperature	37.2 C (99.0 F)	37 of 100 (Notable)
Newark Ag Farm	United States	Record high maximum temperature	38.9 C (102.0 F)	36 of 100 (Notable)
Toledo Blade	United States	Record high maximum temperature	39.4 C (102.9 F)	36 of 100 (Notable)
Natal	Brazil	Record daily precipitation	86.2 mm (3.4 in)	35 of 100 (Notable)
Barguzin	Russia	Record daily precipitation	26.7 mm (1.1 in)	35 of 100 (Notable)
Chillicothe	United States	Record high maximum temperature	37.8 C (100.0 F)	35 of 100 (Notable)
Mt Sterling	United States	Record daily precipitation	72.4 mm (2.9 in)	34 of 100 (Routine)
Gardiner	United States	Record high minimum temperature	21.1 C (70.0 F)	34 of 100 (Routine)
Glenham	United States	Record high maximum temperature	40.6 C (105.1 F)	34 of 100 (Routine)
Lancaster 2 NE Pump St	United States	Record high minimum temperature	22.8 C (73.0 F)	34 of 100 (Routine)
Madurantakam	India	Record daily precipitation	66.0 mm (2.6 in)	33 of 100 (Routine)
Mena	United States	Record daily precipitation	47.5 mm (1.9 in)	33 of 100 (Routine)
Ripley	United States	Record daily precipitation	27.2 mm (1.1 in)	33 of 100 (Routine)
Vida 6 NE	United States	Record daily precipitation	71.6 mm (2.8 in)	33 of 100 (Routine)
Middletown 2 NW	United States	Record high minimum temperature	23.9 C (75.0 F)	33 of 100 (Routine)
Baltimore Customs House	United States	Record high minimum temperature	27.8 C (82.0 F)	33 of 100 (Routine)
Moosomin	Canada	Record daily precipitation	26.2 mm (1.0 in)	32 of 100 (Routine)
Bonn-Friesdorf	Germany	Record daily precipitation	45.5 mm (1.8 in)	32 of 100 (Routine)
Sugartown	United States	Record daily precipitation	29.2 mm (1.1 in)	32 of 100 (Routine)
Laurel 3 W	United States	Record high maximum temperature	38.9 C (102.0 F)	32 of 100 (Routine)
Mc Connellsville Lk 7	United States	Record high maximum temperature	37.8 C (100.0 F)	32 of 100 (Routine)
Sunnyside	United States	Record low maximum temperature	20.6 C (69.1 F)	32 of 100 (Routine)
Middletown 4 W	United States	Record high minimum temperature	23.9 C (75.0 F)	31 of 100 (Routine)
Plymouth-Kingston	United States	Record high minimum temperature	23.3 C (73.9 F)	31 of 100 (Routine)
Hammonton 1 NE	United States	Record high maximum temperature	40.6 C (105.1 F)	31 of 100 (Routine)
Carlisle	United States	Record high minimum temperature	24.4 C (75.9 F)	31 of 100 (Routine)
York 3 SSW Pump STN	United States	Record high maximum temperature	38.9 C (102.0 F)	31 of 100 (Routine)
Reading Wb City	United States	Record high minimum temperature	25.6 C (78.1 F)	31 of 100 (Routine)
Subiaco	United States	Record daily precipitation	25.7 mm (1.0 in)	30 of 100 (Routine)
Weston	United States	Record high maximum temperature	35.0 C (95.0 F)	30 of 100 (Routine)
Charlottesville 2W	United States	Record high maximum temperature	38.3 C (100.9 F)	30 of 100 (Routine)
Dayton 1 WSW	United States	Record low maximum temperature	17.2 C (63.0 F)	30 of 100 (Routine)
Setauket Strong	United States	Record high maximum temperature	35.6 C (96.1 F)	29 of 100 (Routine)
Grand Forks UNIV (NWS)	United States	Record daily precipitation	36.8 mm (1.4 in)	29 of 100 (Routine)
Lusk 2 SW	United States	Record high maximum temperature	37.8 C (100.0 F)	29 of 100 (Routine)
Schwabisch Hall-Bibersfeld	Germany	Record daily precipitation	26.4 mm (1.0 in)	28 of 100 (Routine)
Dover	United States	Record high maximum temperature	38.9 C (102.0 F)	28 of 100 (Routine)
Coleman 3 WNW	United States	Record high minimum temperature	23.9 C (75.0 F)	28 of 100 (Routine)
Hart 3 WSW	United States	Record daily precipitation	25.4 mm (1.0 in)	28 of 100 (Routine)
Hyannis	United States	Record high minimum temperature	25.6 C (78.1 F)	28 of 100 (Routine)
Charlotteburg Rsvr	United States	Record high maximum temperature	36.7 C (98.1 F)	28 of 100 (Routine)
Jersey City	United States	Record high minimum temperature	26.1 C (79.0 F)	28 of 100 (Routine)
Moorestown 4 E	United States	Record high minimum temperature	25.0 C (77.0 F)	28 of 100 (Routine)
New Brunswick Exp STN	United States	Record high maximum temperature	37.8 C (100.0 F)	28 of 100 (Routine)
Bucyrus	United States	Record high minimum temperature	21.7 C (71.1 F)	28 of 100 (Routine)
Coatesville 1 SW	United States	Record high maximum temperature	38.9 C (102.0 F)	28 of 100 (Routine)
Saint John	Canada	Record high maximum temperature	26.7 C (80.1 F)	27 of 100 (Routine)
Aachen	Germany	Record daily precipitation	28.5 mm (1.1 in)	27 of 100 (Routine)
Laurel 3 W	United States	Record high minimum temperature	24.4 C (75.9 F)	27 of 100 (Routine)
Princess Anne	United States	Record high maximum temperature	35.6 C (96.1 F)	27 of 100 (Routine)
Hyannis	United States	Record high minimum temperature	22.2 C (72.0 F)	27 of 100 (Routine)
Bird Island	United States	Record high maximum temperature	38.3 C (100.9 F)	27 of 100 (Routine)
Long Branch-Oakhurst	United States	Record high minimum temperature	24.4 C (75.9 F)	27 of 100 (Routine)
Moorestown 4 E	United States	Record high maximum temperature	38.9 C (102.0 F)	27 of 100 (Routine)
Heppner	United States	Record low maximum temperature	18.9 C (66.0 F)	27 of 100 (Routine)

Counts by Type and Timescale

473 records

Records set or tied on 4 July 1966 by type: Highest daily maximum 157, Lowest daily maximum 49, Highest daily minimum 135, Lowest daily minimum 27, Heaviest daily rainfall 105.

Records on 4 July 1966 by type
Record type	Records
Highest daily maximum	157
Lowest daily maximum	49
Highest daily minimum	135
Lowest daily minimum	27
Heaviest daily rainfall	105
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 July 1966 by timescale: all-time 9, monthly 12, daily 452.

How Much Records Were Beaten By

346 broken records

Margins by which the 346 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 34.8. Ties are not counted.

Top 20 by Significance

4 July 1966

Top 20 records on 4 July 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 July 1966	The Pas, CA	daily rain	45.7 mm (1.8 in)	18.5 mm (0.7 in)	48 years	42 of 100 (Notable)
4 July 1966	Salvisa Lock 6, US	monthly rain	84.1 mm (3.3 in)	16.8 mm (0.7 in)	37 years	41 of 100 (Notable)
4 July 1966	Biedenkopf, DE	daily rain	39.2 mm (1.5 in)	21.7 mm (0.9 in)	16 years	39 of 100 (Notable)
4 July 1966	High Brg Lock 7, US	daily rain	53.8 mm (2.1 in)	22.3 mm (0.9 in)	53 years	39 of 100 (Notable)
4 July 1966	Irkutsk, RU	daily rain	31.0 mm (1.2 in)	7.7 mm (0.30 in)	75 years	38 of 100 (Notable)
4 July 1966	Atlantic City Marina, US	daily high max	37.2 C (99.0 F)	2.8 C (5.0 F)	65 years	37 of 100 (Notable)
4 July 1966	Newark Ag Farm, US	daily high max	38.9 C (102.0 F)	2.8 C (5.0 F)	67 years	36 of 100 (Notable)
4 July 1966	Toledo Blade, US	daily high max	39.4 C (102.9 F)	2.7 C (4.9 F)	68 years	36 of 100 (Notable)
4 July 1966	Natal, BR	daily rain	86.2 mm (3.4 in)	34.5 mm (1.4 in)	36 years	35 of 100 (Notable)
4 July 1966	Barguzin, RU	daily rain	26.7 mm (1.1 in)	12.7 mm (0.5 in)	47 years	35 of 100 (Notable)
4 July 1966	Chillicothe, US	daily high max	37.8 C (100.0 F)	2.8 C (5.0 F)	66 years	35 of 100 (Notable)
4 July 1966	Mt Sterling, US	daily rain	72.4 mm (2.9 in)	15.5 mm (0.6 in)	56 years	34 of 100 (Routine)
4 July 1966	Gardiner, US	daily high min	21.1 C (70.0 F)	1.1 C (2.0 F)	76 years	34 of 100 (Routine)
4 July 1966	Glenham, US	all-time high max	40.6 C (105.1 F)	1.2 C (2.2 F)	29 years	34 of 100 (Routine)
4 July 1966	Lancaster 2 NE Pump St, US	daily high min	22.8 C (73.0 F)	2.2 C (4.0 F)	71 years	34 of 100 (Routine)
4 July 1966	Madurantakam, IN	daily rain	66.0 mm (2.6 in)	34.8 mm (1.4 in)	16 years	33 of 100 (Routine)
4 July 1966	Mena, US	daily rain	47.5 mm (1.9 in)	26.4 mm (1.0 in)	32 years	33 of 100 (Routine)
4 July 1966	Ripley, US	daily rain	27.2 mm (1.1 in)	14.5 mm (0.6 in)	61 years	33 of 100 (Routine)
4 July 1966	Vida 6 NE, US	monthly rain	71.6 mm (2.8 in)	14.4 mm (0.6 in)	17 years	33 of 100 (Routine)
4 July 1966	Middletown 2 NW, US	daily high min	23.9 C (75.0 F)	2.2 C (4.0 F)	67 years	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

1806 to 1966

Records set or tied on this calendar date in each year from 1806 to 1966. 1966 had 473 records.

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

Records on 07-04 in each year
Year	Records
1806	1
1815	2
1827	1
1828	1
1836	1
1837	1
1838	1
1839	2
1845	1
1850	1
1852	1
1856	2
1858	2
1859	1
1860	1
1863	1
1867	1
1868	1
1873	1
1874	2
1875	1
1877	1
1878	1
1879	1
1883	2
1887	1
1889	1
1890	3
1891	1
1892	1
1893	2
1894	3
1895	1
1896	2
1897	3
1898	6
1899	4
1900	10
1901	5
1902	8
1903	7
1904	12
1905	6
1906	15
1907	26
1908	14
1909	20
1910	33
1911	62
1912	28
1913	25
1914	48
1915	36
1916	25
1917	107
1918	72
1919	49
1920	105
1921	50
1922	61
1923	59
1924	230
1925	137
1926	139
1927	290
1928	150
1929	255
1930	276
1931	479
1932	635
1933	459
1934	521
1935	319
1936	1,189
1937	341
1938	353
1939	389
1940	504
1941	409
1942	495
1943	348
1944	553
1945	151
1946	288
1947	258
1948	293
1949	474
1950	335
1951	388
1952	285
1953	431
1954	291
1955	433
1956	381
1957	449
1958	517
1959	280
1960	562
1961	525
1962	619
1963	417
1964	383
1965	258
1966	473
1967	935
1968	668
1969	746
1970	675
1971	385
1972	1,195
1973	656
1974	546
1975	879
1976	785
1977	593
1978	1,020
1979	604
1980	674
1981	850
1982	858
1983	942
1984	851
1985	729
1986	1,129
1987	611
1988	1,158
1989	981
1990	871
1991	872
1992	1,023
1993	1,053
1994	1,131
1995	1,128
1996	1,014
1997	1,251
1998	925
1999	1,632
2000	891
2001	1,120
2002	1,152
2003	617
2004	668
2005	834
2006	924
2007	1,052
2008	764
2009	845
2010	1,124
2011	777
2012	1,205
2013	866
2014	456
2015	1,384
2016	919
2017	496
2018	653
2019	528
2020	365
2021	789
2022	700
2023	627
2024	765
2025	737
2026	717

Download the Data

Data for records on 1966-07-04: 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 5	289
5 to 10	22
10 to 15	14
15 to 20	11
20 to 25	4
25 to 30	3
30 to 35	3