Weather Records on 4 August 1984

722 weather records were set or tied worldwide on 4 August 1984. Highest significance: Valley Head, US.

Key Facts for 4 August 1984

On 4 August 1984, 722 weather records were set or tied at long-record stations worldwide.
164 were record highs and 169 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 24 monthly and 696 daily.
Valley Head set a daily record precipitation of 91.7 mm (3.6 in) on 4 August 1984.
Across 165 earlier years (1815 to 2026) the same calendar date averaged 440 records.

Record Map

722 stations

722 station records on 4 August 1984 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 August 1984: highest significance records shown on the map
Station	Country	Type	Value	Significance
Valley Head	United States	Record daily precipitation	91.7 mm (3.6 in)	71 of 100 (Major)
Kungur	Russia	Record daily precipitation	49.9 mm (2.0 in)	63 of 100 (Major)
Wilcannia (Billilla)	Australia	Record daily precipitation	41.8 mm (1.6 in)	59 of 100 (Notable)
New Castle 1 N	United States	Record daily precipitation	69.3 mm (2.7 in)	57 of 100 (Notable)
Magnitogorsk	Russia	Record daily precipitation	47.2 mm (1.9 in)	56 of 100 (Notable)
Adamovka	Russia	Record daily precipitation	31.6 mm (1.2 in)	54 of 100 (Notable)
Ahmadabad	India	Record daily precipitation	134.9 mm (5.3 in)	53 of 100 (Notable)
Balmoral Station	Australia	Record daily precipitation	30.0 mm (1.2 in)	52 of 100 (Notable)
Skovorodino	Russia	Record daily precipitation	50.7 mm (2.0 in)	52 of 100 (Notable)
Erfde	Germany	Record daily precipitation	38.6 mm (1.5 in)	50 of 100 (Notable)
Nachiki	Russia	Record daily precipitation	36.8 mm (1.4 in)	49 of 100 (Notable)
Mermentau	United States	Record daily precipitation	143.5 mm (5.6 in)	49 of 100 (Notable)
Rheinfelden	Germany	Record daily precipitation	56.0 mm (2.2 in)	48 of 100 (Notable)
Beloreck	Russia	Record daily precipitation	36.3 mm (1.4 in)	47 of 100 (Notable)
Mio Hydro Plt	United States	Record daily precipitation	59.7 mm (2.4 in)	46 of 100 (Notable)
Bridgewater (Post Office)	Australia	Record daily precipitation	28.4 mm (1.1 in)	45 of 100 (Notable)
Pitas	Brazil	Record daily precipitation	44.7 mm (1.8 in)	45 of 100 (Notable)
Dzalinda	Russia	Record daily precipitation	59.7 mm (2.4 in)	45 of 100 (Notable)
Godegard	Sweden	Record daily precipitation	30.7 mm (1.2 in)	45 of 100 (Notable)
Caballo Dam	United States	Record daily precipitation	33.0 mm (1.3 in)	45 of 100 (Notable)
Atbasar	Kazakhstan	Record daily precipitation	31.5 mm (1.2 in)	44 of 100 (Notable)
Jakutsk	Russia	Record low minimum temperature	-0.9 C (30.4 F)	44 of 100 (Notable)
Litchville 2NW	United States	Record daily precipitation	47.5 mm (1.9 in)	44 of 100 (Notable)
Bowling Green Wwtp	United States	Record daily precipitation	40.1 mm (1.6 in)	44 of 100 (Notable)
Coyuquilla	Mexico	Record daily precipitation	89.4 mm (3.5 in)	42 of 100 (Notable)
Tuscaloosa Oliver Dam	United States	Record low maximum temperature	23.3 C (73.9 F)	42 of 100 (Notable)
Vandalia	United States	Record daily precipitation	96.0 mm (3.8 in)	42 of 100 (Notable)
Anderson 1 N	United States	Record daily precipitation	50.0 mm (2.0 in)	42 of 100 (Notable)
Hatch	United States	Record low minimum temperature	8.3 C (46.9 F)	42 of 100 (Notable)
Richland	United States	Record daily precipitation	38.1 mm (1.5 in)	41 of 100 (Notable)
Donaldsonville 4 SW	United States	Record low maximum temperature	27.2 C (81.0 F)	40 of 100 (Notable)
Houma	United States	Record daily precipitation	67.3 mm (2.6 in)	40 of 100 (Notable)
Batesville	United States	Record low maximum temperature	27.2 C (81.0 F)	40 of 100 (Notable)
Hernando	United States	Record daily precipitation	69.1 mm (2.7 in)	40 of 100 (Notable)
Tierra Blanca (Smn)	Mexico	Record low maximum temperature	25.6 C (78.1 F)	39 of 100 (Notable)
Tierra Blanca (Smn)	Mexico	Record low minimum temperature	15.0 C (59.0 F)	39 of 100 (Notable)
Erofej Pavlovic	Russia	Record daily precipitation	81.8 mm (3.2 in)	39 of 100 (Notable)
Chernjaevo	Russia	Record daily precipitation	49.9 mm (2.0 in)	39 of 100 (Notable)
Cuxhaven	Germany	Record daily precipitation	34.1 mm (1.3 in)	38 of 100 (Notable)
Loksak	Russia	Record daily precipitation	70.5 mm (2.8 in)	38 of 100 (Notable)
Gar	Russia	Record daily precipitation	55.6 mm (2.2 in)	38 of 100 (Notable)
Houma	United States	Record low maximum temperature	27.2 C (81.0 F)	38 of 100 (Notable)
Ze da Rosa	Brazil	Record daily precipitation	80.6 mm (3.2 in)	37 of 100 (Notable)
Napa State Hospital	United States	Record high minimum temperature	16.7 C (62.1 F)	37 of 100 (Notable)
Fulton 3 W	United States	Record low maximum temperature	29.4 C (84.9 F)	37 of 100 (Notable)
Unaha	Russia	Record daily precipitation	64.8 mm (2.6 in)	36 of 100 (Notable)
Corning	United States	Record daily precipitation	82.8 mm (3.3 in)	36 of 100 (Notable)
Tallulah	United States	Record daily precipitation	48.0 mm (1.9 in)	36 of 100 (Notable)
Afton 6 NE	United States	Record daily precipitation	37.8 mm (1.5 in)	36 of 100 (Notable)
Moscow	United States	Record daily precipitation	41.4 mm (1.6 in)	36 of 100 (Notable)
Yurecuaro	Mexico	Record high minimum temperature	19.4 C (66.9 F)	35 of 100 (Notable)
Morgan City	United States	Record low maximum temperature	26.1 C (79.0 F)	35 of 100 (Notable)
Hattiesburg 5SW	United States	Record low maximum temperature	25.0 C (77.0 F)	35 of 100 (Notable)
Ysleta	United States	Record daily precipitation	27.4 mm (1.1 in)	35 of 100 (Notable)
Indore	India	Record daily precipitation	121.9 mm (4.8 in)	34 of 100 (Routine)
Minusinsk	Russia	Record daily precipitation	25.5 mm (1.0 in)	34 of 100 (Routine)
Bratoljubovka	Russia	Record daily precipitation	52.2 mm (2.1 in)	34 of 100 (Routine)
Zavitaja	Russia	Record daily precipitation	57.8 mm (2.3 in)	34 of 100 (Routine)
Harnosand	Sweden	Record high minimum temperature	17.8 C (64.0 F)	34 of 100 (Routine)
Kingsville	United States	Record low minimum temperature	18.3 C (64.9 F)	34 of 100 (Routine)

Counts by Type and Timescale

722 records

Records set or tied on 4 August 1984 by type: Highest daily maximum 43, Lowest daily maximum 115, Highest daily minimum 121, Lowest daily minimum 54, Heaviest daily rainfall 389.

Records on 4 August 1984 by type
Record type	Records
Highest daily maximum	43
Lowest daily maximum	115
Highest daily minimum	121
Lowest daily minimum	54
Heaviest daily rainfall	389
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 August 1984 by timescale: all-time 2, monthly 24, daily 696.

How Much Records Were Beaten By

584 broken records

Margins by which the 584 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 77.5. Ties are not counted.

Top 20 by Significance

4 August 1984

Top 20 records on 4 August 1984 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 August 1984	Valley Head, US	daily rain	91.7 mm (3.6 in)	67.1 mm (2.6 in)	76 years	71 of 100 (Major)
4 August 1984	Kungur, RU	monthly rain	49.9 mm (2.0 in)	20.4 mm (0.8 in)	36 years	63 of 100 (Major)
4 August 1984	Wilcannia (Billilla), AU	daily rain	41.8 mm (1.6 in)	31.6 mm (1.2 in)	31 years	59 of 100 (Notable)
4 August 1984	New Castle 1 N, US	daily rain	69.3 mm (2.7 in)	39.1 mm (1.5 in)	46 years	57 of 100 (Notable)
4 August 1984	Magnitogorsk, RU	daily rain	47.2 mm (1.9 in)	30.7 mm (1.2 in)	41 years	56 of 100 (Notable)
4 August 1984	Adamovka, RU	daily rain	31.6 mm (1.2 in)	19.9 mm (0.8 in)	42 years	54 of 100 (Notable)
4 August 1984	Ahmadabad, IN	daily rain	134.9 mm (5.3 in)	72.7 mm (2.9 in)	28 years	53 of 100 (Notable)
4 August 1984	Balmoral Station, AU	daily rain	30.0 mm (1.2 in)	30.0 mm (1.2 in)	65 years	52 of 100 (Notable)
4 August 1984	Skovorodino, RU	daily rain	50.7 mm (2.0 in)	28.1 mm (1.1 in)	50 years	52 of 100 (Notable)
4 August 1984	Erfde, DE	daily rain	38.6 mm (1.5 in)	25.0 mm (1.0 in)	43 years	50 of 100 (Notable)
4 August 1984	Nachiki, RU	daily rain	36.8 mm (1.4 in)	23.9 mm (0.9 in)	43 years	49 of 100 (Notable)
4 August 1984	Mermentau, US	daily rain	143.5 mm (5.6 in)	77.5 mm (3.1 in)	18 years	49 of 100 (Notable)
4 August 1984	Rheinfelden, DE	daily rain	56.0 mm (2.2 in)	41.1 mm (1.6 in)	18 years	48 of 100 (Notable)
4 August 1984	Beloreck, RU	daily rain	36.3 mm (1.4 in)	24.9 mm (1.0 in)	22 years	47 of 100 (Notable)
4 August 1984	Mio Hydro Plt, US	daily rain	59.7 mm (2.4 in)	27.2 mm (1.1 in)	32 years	46 of 100 (Notable)
4 August 1984	Bridgewater (Post Office), AU	daily rain	28.4 mm (1.1 in)	15.2 mm (0.6 in)	31 years	45 of 100 (Notable)
4 August 1984	Pitas, BR	daily rain	44.7 mm (1.8 in)	28.1 mm (1.1 in)	12 years	45 of 100 (Notable)
4 August 1984	Dzalinda, RU	daily rain	59.7 mm (2.4 in)	44.5 mm (1.8 in)	6 years	45 of 100 (Notable)
4 August 1984	Godegard, SE	daily rain	30.7 mm (1.2 in)	7.2 mm (0.28 in)	87 years	45 of 100 (Notable)
4 August 1984	Caballo Dam, US	daily rain	33.0 mm (1.3 in)	23.3 mm (0.9 in)	43 years	45 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

1815 to 1984

Records set or tied on this calendar date in each year from 1815 to 1984. 1984 had 722 records.

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

Records on 08-04 in each year
Year	Records
1815	1
1827	1
1830	2
1833	1
1835	1
1843	1
1846	1
1847	1
1848	1
1857	1
1859	2
1860	2
1863	1
1865	3
1867	1
1868	1
1870	1
1871	1
1872	2
1874	3
1875	1
1878	3
1879	1
1881	2
1882	1
1883	1
1885	3
1886	1
1887	3
1888	4
1889	2
1890	1
1891	2
1893	2
1894	1
1895	3
1896	4
1897	3
1898	1
1899	7
1900	6
1902	4
1903	18
1904	11
1905	19
1906	14
1907	20
1908	31
1909	27
1910	17
1911	23
1912	51
1913	15
1914	33
1915	85
1916	97
1917	29
1918	95
1919	34
1920	79
1921	67
1922	68
1923	146
1924	132
1925	77
1926	334
1927	136
1928	352
1929	224
1930	698
1931	371
1932	258
1933	347
1934	521
1935	367
1936	719
1937	258
1938	489
1939	433
1940	236
1941	383
1942	303
1943	468
1944	662
1945	355
1946	265
1947	845
1948	558
1949	421
1950	666
1951	680
1952	465
1953	1,017
1954	426
1955	624
1956	437
1957	343
1958	533
1959	303
1960	331
1961	745
1962	470
1963	438
1964	885
1965	409
1966	552
1967	428
1968	280
1969	638
1970	415
1971	813
1972	773
1973	748
1974	1,040
1975	772
1976	801
1977	599
1978	1,051
1979	510
1980	998
1981	636
1982	703
1983	920
1984	722
1985	634
1986	905
1987	892
1988	1,204
1989	738
1990	1,013
1991	769
1992	754
1993	1,046
1994	1,265
1995	1,117
1996	1,143
1997	891
1998	1,423
1999	762
2000	840
2001	1,087
2002	928
2003	1,309
2004	968
2005	1,246
2006	1,131
2007	685
2008	883
2009	681
2010	1,665
2011	1,536
2012	738
2013	452
2014	980
2015	505
2016	732
2017	1,134
2018	760
2019	499
2020	778
2021	691
2022	1,185
2023	1,150
2024	809
2025	840
2026	1,044

Download the Data

Data for records on 1984-08-04: 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 10	464
10 to 20	66
20 to 30	34
30 to 40	10
40 to 50	5
50 to 60	1
60 to 70	2
70 to 80	2