Weather Records on 4 August 2015

505 weather records were set or tied worldwide on 4 August 2015. Highest significance: Du Quoin 4 SE, US.

Key Facts for 4 August 2015

On 4 August 2015, 505 weather records were set or tied at long-record stations worldwide.
293 were record highs and 106 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 13 monthly and 487 daily.
Du Quoin 4 SE set a daily record precipitation of 121.2 mm (4.8 in) on 4 August 2015.
Across 165 earlier years (1815 to 2026) the same calendar date averaged 441 records.

Record Map

505 stations

505 station records on 4 August 2015 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 August 2015: highest significance records shown on the map
Station	Country	Type	Value	Significance
Du Quoin 4 SE	United States	Record daily precipitation	121.2 mm (4.8 in)	62 of 100 (Major)
Penang Intl	Malaysia	Record daily precipitation	109.5 mm (4.3 in)	54 of 100 (Notable)
Bjornholt	Norway	Record daily precipitation	45.7 mm (1.8 in)	54 of 100 (Notable)
Valdosta Rgnl AP	United States	Record high minimum temperature	30.0 C (86.0 F)	54 of 100 (Notable)
Payette	United States	Record high minimum temperature	23.9 C (75.0 F)	52 of 100 (Notable)
Logan Utah St UNIV	United States	Record low maximum temperature	17.8 C (64.0 F)	51 of 100 (Notable)
Lamesa 1 SSE	United States	Record daily precipitation	26.7 mm (1.1 in)	50 of 100 (Notable)
Asker	Norway	Record daily precipitation	47.2 mm (1.9 in)	49 of 100 (Notable)
Yellowstone Park Mammoth	United States	Record high minimum temperature	16.7 C (62.1 F)	48 of 100 (Notable)
Kealakekua 26.2	United States	Record high maximum temperature	29.4 C (84.9 F)	47 of 100 (Notable)
Dumas	United States	Record daily precipitation	45.5 mm (1.8 in)	45 of 100 (Notable)
Reserve Rs	United States	Record low minimum temperature	1.1 C (34.0 F)	44 of 100 (Notable)
Bakke	Norway	Record daily precipitation	48.8 mm (1.9 in)	43 of 100 (Notable)
Mineral-Nye-Vody	Russia	Record daily precipitation	28.0 mm (1.1 in)	43 of 100 (Notable)
Hastings 4N	United States	Record daily precipitation	35.6 mm (1.4 in)	43 of 100 (Notable)
Gruver	United States	Record daily precipitation	56.9 mm (2.2 in)	43 of 100 (Notable)
Tryvasshogda	Norway	Record daily precipitation	44.2 mm (1.7 in)	42 of 100 (Notable)
Bright Angel Rs	United States	Record high minimum temperature	16.7 C (62.1 F)	41 of 100 (Notable)
San Carlos Rsvr	United States	Record low minimum temperature	12.8 C (55.0 F)	41 of 100 (Notable)
Great Falls 16St	United States	Record high minimum temperature	19.4 C (66.9 F)	41 of 100 (Notable)
Tatum	United States	Record daily precipitation	32.3 mm (1.3 in)	41 of 100 (Notable)
Oslo Blindern	Norway	Record daily precipitation	55.6 mm (2.2 in)	40 of 100 (Notable)
Crescent City	United States	Record low maximum temperature	26.1 C (79.0 F)	40 of 100 (Notable)
Farson 2NNE	United States	Record daily precipitation	25.1 mm (1.0 in)	40 of 100 (Notable)
Maridalsoset	Norway	Record daily precipitation	39.5 mm (1.6 in)	39 of 100 (Notable)
Hole	Norway	Record daily precipitation	35.4 mm (1.4 in)	39 of 100 (Notable)
Logan 5 SW Exp Farm	United States	Record low maximum temperature	17.2 C (63.0 F)	39 of 100 (Notable)
Ft Meade	United States	Record daily precipitation	42.4 mm (1.7 in)	38 of 100 (Notable)
Anchorage Merrill Fld	United States	Record high maximum temperature	25.6 C (78.1 F)	37 of 100 (Notable)
Glenwood Spgs #2	United States	Record low maximum temperature	22.2 C (72.0 F)	35 of 100 (Notable)
Santaquin Chlorinator	United States	Record low maximum temperature	21.7 C (71.1 F)	35 of 100 (Notable)
Turkestan	Kazakhstan	Record high minimum temperature	25.9 C (78.6 F)	34 of 100 (Routine)
Sayre	United States	Record daily precipitation	35.1 mm (1.4 in)	34 of 100 (Routine)
Ajan	Russia	Record daily precipitation	87.9 mm (3.5 in)	33 of 100 (Routine)
Deer Creek Dam	United States	Record low maximum temperature	20.0 C (68.0 F)	33 of 100 (Routine)
Nordstrand	Norway	Record daily precipitation	29.0 mm (1.1 in)	32 of 100 (Routine)
Isfjord Radio	Norway	Record high minimum temperature	6.7 C (44.1 F)	32 of 100 (Routine)
Ellsworth	United States	Record daily precipitation	83.1 mm (3.3 in)	32 of 100 (Routine)
Missoula 6 NW WFO	United States	Record high minimum temperature	19.4 C (66.9 F)	32 of 100 (Routine)
Logan Radio Kvnu	United States	Record low maximum temperature	19.4 C (66.9 F)	32 of 100 (Routine)
Barvesk	Australia	Record daily precipitation	31.8 mm (1.3 in)	31 of 100 (Routine)
Datong	China	Record low minimum temperature	9.5 C (49.1 F)	31 of 100 (Routine)
Lhasa	China	Record daily precipitation	36.1 mm (1.4 in)	31 of 100 (Routine)
Plauen	Germany	Record high maximum temperature	33.3 C (91.9 F)	31 of 100 (Routine)
Zuara	Libya	Record high minimum temperature	27.5 C (81.5 F)	31 of 100 (Routine)
Armavir	Russia	Record high minimum temperature	24.7 C (76.5 F)	31 of 100 (Routine)
Wejh	Saudi Arabia	Record high minimum temperature	31.2 C (88.2 F)	31 of 100 (Routine)
Zamora	Mexico	Record daily precipitation	38.4 mm (1.5 in)	30 of 100 (Routine)
Rygge	Norway	Record daily precipitation	30.2 mm (1.2 in)	30 of 100 (Routine)
Tonstad - Nettfed	Norway	Record daily precipitation	41.2 mm (1.6 in)	30 of 100 (Routine)
Twitchell Dam	United States	Record low minimum temperature	6.1 C (43.0 F)	30 of 100 (Routine)
Choteau	United States	Record high minimum temperature	18.9 C (66.0 F)	30 of 100 (Routine)
Oak City	United States	Record low maximum temperature	26.1 C (79.0 F)	30 of 100 (Routine)
Har Kenaan	Israel	Record high maximum temperature	36.3 C (97.3 F)	29 of 100 (Routine)
Lista Fyr	Norway	Record daily precipitation	26.7 mm (1.1 in)	29 of 100 (Routine)
Berezovo	Russia	Record daily precipitation	32.8 mm (1.3 in)	29 of 100 (Routine)
Kislovodsk	Russia	Record high minimum temperature	18.3 C (64.9 F)	29 of 100 (Routine)
Ben Lomond #4	United States	Record low minimum temperature	2.8 C (37.0 F)	29 of 100 (Routine)
Half Moon Bay	United States	Record high maximum temperature	23.9 C (75.0 F)	29 of 100 (Routine)
Elliston	United States	Record high minimum temperature	13.9 C (57.0 F)	29 of 100 (Routine)

Counts by Type and Timescale

505 records

Records set or tied on 4 August 2015 by type: Highest daily maximum 144, Lowest daily maximum 69, Highest daily minimum 149, Lowest daily minimum 37, Heaviest daily rainfall 106.

Records on 4 August 2015 by type
Record type	Records
Highest daily maximum	144
Lowest daily maximum	69
Highest daily minimum	149
Lowest daily minimum	37
Heaviest daily rainfall	106
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 August 2015 by timescale: all-time 5, monthly 13, daily 487.

How Much Records Were Beaten By

401 broken records

Margins by which the 401 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 67.9. Ties are not counted.

Top 20 by Significance

4 August 2015

Top 20 records on 4 August 2015 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 August 2015	Du Quoin 4 SE, US	daily rain	121.2 mm (4.8 in)	67.9 mm (2.7 in)	42 years	62 of 100 (Major)
4 August 2015	Penang Intl, MY	daily rain	109.5 mm (4.3 in)	64.5 mm (2.5 in)	50 years	54 of 100 (Notable)
4 August 2015	Bjornholt, NO	daily rain	45.7 mm (1.8 in)	15.2 mm (0.6 in)	125 years	54 of 100 (Notable)
4 August 2015	Valdosta Rgnl AP, US	all-time high min	30.0 C (86.0 F)	3.9 C (7.0 F)	9 years	54 of 100 (Notable)
4 August 2015	Payette, US	daily high min	23.9 C (75.0 F)	4.5 C (8.1 F)	110 years	52 of 100 (Notable)
4 August 2015	Logan Utah St UNIV, US	daily low max	17.8 C (64.0 F)	3.9 C (7.0 F)	102 years	51 of 100 (Notable)
4 August 2015	Lamesa 1 SSE, US	daily rain	26.7 mm (1.1 in)	13.2 mm (0.5 in)	102 years	50 of 100 (Notable)
4 August 2015	Asker, NO	daily rain	47.2 mm (1.9 in)	28.1 mm (1.1 in)	44 years	49 of 100 (Notable)
4 August 2015	Yellowstone Park Mammoth, US	daily high min	16.7 C (62.1 F)	2.8 C (5.0 F)	120 years	48 of 100 (Notable)
4 August 2015	Kealakekua 26.2, US	daily high max	29.4 C (84.9 F)	1.1 C (2.0 F)	108 years	47 of 100 (Notable)
4 August 2015	Dumas, US	daily rain	45.5 mm (1.8 in)	22.9 mm (0.9 in)	65 years	45 of 100 (Notable)
4 August 2015	Reserve Rs, US	daily low min	1.1 C (34.0 F)	6.1 C (11.0 F)	58 years	44 of 100 (Notable)
4 August 2015	Bakke, NO	daily rain	48.8 mm (1.9 in)	9.6 mm (0.38 in)	85 years	43 of 100 (Notable)
4 August 2015	Mineral-Nye-Vody, RU	daily rain	28.0 mm (1.1 in)	14.7 mm (0.6 in)	64 years	43 of 100 (Notable)
4 August 2015	Hastings 4N, US	daily rain	35.6 mm (1.4 in)	8.9 mm (0.35 in)	92 years	43 of 100 (Notable)
4 August 2015	Gruver, US	daily rain	56.9 mm (2.2 in)	21.3 mm (0.8 in)	57 years	43 of 100 (Notable)
4 August 2015	Tryvasshogda, NO	daily rain	44.2 mm (1.7 in)	24.0 mm (0.9 in)	41 years	42 of 100 (Notable)
4 August 2015	Bright Angel Rs, US	daily high min	16.7 C (62.1 F)	2.3 C (4.1 F)	80 years	41 of 100 (Notable)
4 August 2015	San Carlos Rsvr, US	daily low min	12.8 C (55.0 F)	0.5 C (0.9 F)	104 years	41 of 100 (Notable)
4 August 2015	Great Falls 16St, US	daily high min	19.4 C (66.9 F)	0.5 C (0.9 F)	100 years	41 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 2015

Records set or tied on this calendar date in each year from 1815 to 2015. 2015 had 505 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 2015-08-04: 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	366
10 to 20	21
20 to 30	10
30 to 40	2
40 to 50	0
50 to 60	0
60 to 70	2