Weather Records on 4 August 2017

1,134 weather records were set or tied worldwide on 4 August 2017. Highest significance: Norrsundet, SE.

Key Facts for 4 August 2017

On 4 August 2017, 1,134 weather records were set or tied at long-record stations worldwide.
575 were record highs and 210 were record lows, counting maximum and minimum temperature.
By timescale, 18 were all-time records, 44 monthly and 1,072 daily.
Norrsundet set an all-time record daily precipitation of 125.8 mm (5.0 in) on 4 August 2017.
Across 165 earlier years (1815 to 2026) the same calendar date averaged 437 records.

Record Map

1,134 stations

1,134 station records on 4 August 2017 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 August 2017: highest significance records shown on the map
Station	Country	Type	Value	Significance
Norrsundet	Sweden	Record daily precipitation	125.8 mm (5.0 in)	78 of 100 (Major)
Clanton	United States	Record daily precipitation	69.9 mm (2.8 in)	66 of 100 (Major)
Pascagoula 3 NE	United States	Record daily precipitation	204.5 mm (8.1 in)	62 of 100 (Major)
Shippensburg	United States	Record daily precipitation	89.4 mm (3.5 in)	62 of 100 (Major)
Tongliao	China	Record daily precipitation	127.3 mm (5.0 in)	57 of 100 (Notable)
Hudiksvall	Sweden	Record daily precipitation	67.5 mm (2.7 in)	54 of 100 (Notable)
Pensacola Rgnl AP	United States	Record daily precipitation	135.6 mm (5.3 in)	54 of 100 (Notable)
Simea	Sweden	Record daily precipitation	61.8 mm (2.4 in)	52 of 100 (Notable)
Mariupol'	Ukraine	Record high maximum temperature	38.0 C (100.4 F)	52 of 100 (Notable)
Austwell	United States	Record daily precipitation	43.4 mm (1.7 in)	52 of 100 (Notable)
Spooner Ag Rsch STN	United States	Record low maximum temperature	11.7 C (53.1 F)	51 of 100 (Notable)
Hawkinsville	United States	Record daily precipitation	68.6 mm (2.7 in)	50 of 100 (Notable)
Long Prairie	United States	Record low maximum temperature	13.9 C (57.0 F)	50 of 100 (Notable)
Galliano	United States	Record daily precipitation	174.0 mm (6.9 in)	48 of 100 (Notable)
Pine Rvr Dam	United States	Record low maximum temperature	13.9 C (57.0 F)	47 of 100 (Notable)
McCook	United States	Record daily precipitation	42.9 mm (1.7 in)	47 of 100 (Notable)
Irael	Russia	Record daily precipitation	34.5 mm (1.4 in)	45 of 100 (Notable)
Canby	United States	Record low maximum temperature	18.3 C (64.9 F)	45 of 100 (Notable)
Lynch	United States	Record low maximum temperature	20.6 C (69.1 F)	45 of 100 (Notable)
Eagle Rvr	United States	Record daily precipitation	56.9 mm (2.2 in)	45 of 100 (Notable)
Merchant Valley	United States	Record daily precipitation	61.0 mm (2.4 in)	45 of 100 (Notable)
Trang	Thailand	Record daily precipitation	161.0 mm (6.3 in)	44 of 100 (Notable)
Tempe Asu	United States	Record daily precipitation	27.9 mm (1.1 in)	44 of 100 (Notable)
Berkeley	United States	Record high minimum temperature	17.2 C (63.0 F)	44 of 100 (Notable)
Drobeta Turnu Severin	Romania	Record high maximum temperature	40.8 C (105.4 F)	43 of 100 (Notable)
Graton	United States	Record high minimum temperature	16.1 C (61.0 F)	43 of 100 (Notable)
Spirit Lake	United States	Record low minimum temperature	10.0 C (50.0 F)	43 of 100 (Notable)
Burr Oak 4S	United States	Record low maximum temperature	22.8 C (73.0 F)	43 of 100 (Notable)
Litchfield	United States	Record low maximum temperature	14.4 C (57.9 F)	43 of 100 (Notable)
Corvallis State UNIV	United States	Record high maximum temperature	39.4 C (102.9 F)	43 of 100 (Notable)
Budapest	Hungary	Record high maximum temperature	39.1 C (102.4 F)	42 of 100 (Notable)
Norsk	Russia	Record daily precipitation	116.2 mm (4.6 in)	42 of 100 (Notable)
Old Mission 3SSW	United States	Record daily precipitation	59.9 mm (2.4 in)	42 of 100 (Notable)
Pontiac Wwtp	United States	Record daily precipitation	52.1 mm (2.1 in)	42 of 100 (Notable)
Auburn 5 ESE	United States	Record low minimum temperature	7.2 C (45.0 F)	42 of 100 (Notable)
Highmore	United States	Record low minimum temperature	3.3 C (37.9 F)	42 of 100 (Notable)
Patna	India	Record daily precipitation	106.9 mm (4.2 in)	41 of 100 (Notable)
Hurbanovo	Slovakia	Record high maximum temperature	38.2 C (100.8 F)	41 of 100 (Notable)
Cluj Napoca	Romania	Record high maximum temperature	37.0 C (98.6 F)	41 of 100 (Notable)
Monroe City	United States	Record low minimum temperature	11.1 C (52.0 F)	41 of 100 (Notable)
Superior	United States	Record low maximum temperature	23.3 C (73.9 F)	41 of 100 (Notable)
Wakefield 3NW	United States	Record low maximum temperature	21.7 C (71.1 F)	41 of 100 (Notable)
Walthill 1E	United States	Record low maximum temperature	21.7 C (71.1 F)	41 of 100 (Notable)
Yerington	United States	Record high minimum temperature	21.1 C (70.0 F)	41 of 100 (Notable)
Flandreau	United States	Record low maximum temperature	17.2 C (63.0 F)	41 of 100 (Notable)
Osijek	Croatia	Record high maximum temperature	37.8 C (100.0 F)	40 of 100 (Notable)
Wheaton	United States	Record low maximum temperature	20.0 C (68.0 F)	40 of 100 (Notable)
White Lake	United States	Record low maximum temperature	20.6 C (69.1 F)	40 of 100 (Notable)
Perpignan	France	Record high maximum temperature	37.8 C (100.0 F)	39 of 100 (Notable)
Szeged	Hungary	Record high maximum temperature	39.3 C (102.7 F)	39 of 100 (Notable)
Tjuhtet	Russia	Record high maximum temperature	34.5 C (94.1 F)	39 of 100 (Notable)
Cheboygan	United States	Record daily precipitation	32.3 mm (1.3 in)	39 of 100 (Notable)
Kalkaska	United States	Record daily precipitation	53.6 mm (2.1 in)	39 of 100 (Notable)
Williamsport Rgnl AP	United States	Record daily precipitation	39.6 mm (1.6 in)	39 of 100 (Notable)
Oberstdorf	Germany	Record high minimum temperature	17.4 C (63.3 F)	38 of 100 (Notable)
Nagasaki	Japan	Record high minimum temperature	29.2 C (84.6 F)	38 of 100 (Notable)
Ytterhogdal	Sweden	Record daily precipitation	35.5 mm (1.4 in)	38 of 100 (Notable)
Riddle	United States	Record high maximum temperature	41.7 C (107.1 F)	38 of 100 (Notable)
Shawano 2SSW	United States	Record low maximum temperature	16.7 C (62.1 F)	38 of 100 (Notable)
Graz	Austria	Record high minimum temperature	22.0 C (71.6 F)	37 of 100 (Notable)

Counts by Type and Timescale

1,134 records

Records set or tied on 4 August 2017 by type: Highest daily maximum 260, Lowest daily maximum 156, Highest daily minimum 315, Lowest daily minimum 54, Heaviest daily rainfall 349.

Records on 4 August 2017 by type
Record type	Records
Highest daily maximum	260
Lowest daily maximum	156
Highest daily minimum	315
Lowest daily minimum	54
Heaviest daily rainfall	349
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 August 2017 by timescale: all-time 18, monthly 44, daily 1,072.

How Much Records Were Beaten By

941 broken records

Margins by which the 941 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 152.4. Ties are not counted.

Top 20 by Significance

4 August 2017

Top 20 records on 4 August 2017 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 August 2017	Norrsundet, SE	all-time rain	125.8 mm (5.0 in)	38.9 mm (1.5 in)	37 years	78 of 100 (Major)
4 August 2017	Clanton, US	daily rain	69.9 mm (2.8 in)	42.0 mm (1.7 in)	110 years	66 of 100 (Major)
4 August 2017	Pascagoula 3 NE, US	daily rain	204.5 mm (8.1 in)	152.4 mm (6.0 in)	40 years	62 of 100 (Major)
4 August 2017	Shippensburg, US	daily rain	89.4 mm (3.5 in)	63.0 mm (2.5 in)	42 years	62 of 100 (Major)
4 August 2017	Tongliao, CN	daily rain	127.3 mm (5.0 in)	84.1 mm (3.3 in)	38 years	57 of 100 (Notable)
4 August 2017	Hudiksvall, SE	daily rain	67.5 mm (2.7 in)	29.3 mm (1.2 in)	39 years	54 of 100 (Notable)
4 August 2017	Pensacola Rgnl AP, US	daily rain	135.6 mm (5.3 in)	58.1 mm (2.3 in)	51 years	54 of 100 (Notable)
4 August 2017	Simea, SE	daily rain	61.8 mm (2.4 in)	33.9 mm (1.3 in)	28 years	52 of 100 (Notable)
4 August 2017	Mariupol', UA	all-time high max	38.0 C (100.4 F)	0.2 C (0.4 F)	80 years	52 of 100 (Notable)
4 August 2017	Austwell, US	daily rain	43.4 mm (1.7 in)	24.3 mm (1.0 in)	104 years	52 of 100 (Notable)
4 August 2017	Spooner Ag Rsch STN, US	monthly low max	11.7 C (53.1 F)	0.5 C (0.9 F)	102 years	51 of 100 (Notable)
4 August 2017	Hawkinsville, US	daily rain	68.6 mm (2.7 in)	17.0 mm (0.7 in)	96 years	50 of 100 (Notable)
4 August 2017	Long Prairie, US	daily low max	13.9 C (57.0 F)	4.4 C (7.9 F)	110 years	50 of 100 (Notable)
4 August 2017	Galliano, US	daily rain	174.0 mm (6.9 in)	120.7 mm (4.8 in)	12 years	48 of 100 (Notable)
4 August 2017	Pine Rvr Dam, US	daily low max	13.9 C (57.0 F)	2.8 C (5.0 F)	110 years	47 of 100 (Notable)
4 August 2017	McCook, US	daily rain	42.9 mm (1.7 in)	30.2 mm (1.2 in)	70 years	47 of 100 (Notable)
4 August 2017	Irael, RU	daily rain	34.5 mm (1.4 in)	14.5 mm (0.6 in)	52 years	45 of 100 (Notable)
4 August 2017	Canby, US	daily low max	18.3 C (64.9 F)	3.4 C (6.1 F)	94 years	45 of 100 (Notable)
4 August 2017	Lynch, US	daily low max	20.6 C (69.1 F)	2.7 C (4.9 F)	117 years	45 of 100 (Notable)
4 August 2017	Eagle Rvr, US	daily rain	56.9 mm (2.2 in)	39.1 mm (1.5 in)	28 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 2017

Records set or tied on this calendar date in each year from 1815 to 2017. 2017 had 1,134 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 2017-08-04: 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 20	915
20 to 40	18
40 to 60	3
60 to 80	2
80 to 100	1
100 to 120	0
120 to 140	1
140 to 160	1