Weather Records on 4 August 2021

691 weather records were set or tied worldwide on 4 August 2021. Highest significance: Ukhta Kalevala, RU.

Key Facts for 4 August 2021

On 4 August 2021, 691 weather records were set or tied at long-record stations worldwide.
368 were record highs and 219 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 22 monthly and 665 daily.
Ukhta Kalevala set a daily record precipitation of 41.9 mm (1.6 in) on 4 August 2021.
Across 165 earlier years (1815 to 2026) the same calendar date averaged 440 records.

Record Map

691 stations

691 station records on 4 August 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 August 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ukhta Kalevala	Russia	Record daily precipitation	41.9 mm (1.6 in)	64 of 100 (Major)
Olekminsk	Russia	Record daily precipitation	36.1 mm (1.4 in)	64 of 100 (Major)
Cape Hatteras - Billy Mitchell	United States	Record daily precipitation	145.5 mm (5.7 in)	64 of 100 (Major)
Morehead City 2 WNW	United States	Record daily precipitation	188.0 mm (7.4 in)	53 of 100 (Notable)
Novyj Tor'jal	Russia	Record daily precipitation	26.9 mm (1.1 in)	50 of 100 (Notable)
Rogersville 1 NE	United States	Record low maximum temperature	21.1 C (70.0 F)	50 of 100 (Notable)
Usugli	Russia	Record daily precipitation	53.1 mm (2.1 in)	49 of 100 (Notable)
Winter Park	United States	Record daily precipitation	27.9 mm (1.1 in)	49 of 100 (Notable)
Padun	Russia	Record daily precipitation	34.0 mm (1.3 in)	48 of 100 (Notable)
Punta Gorda 4 ESE	United States	Record daily precipitation	100.3 mm (3.9 in)	48 of 100 (Notable)
Fish Creek (Hoddle Range)	Australia	Record daily precipitation	39.0 mm (1.5 in)	46 of 100 (Notable)
Dillon 1 E	United States	Record low maximum temperature	15.0 C (59.0 F)	46 of 100 (Notable)
Derna	Libya	Record high minimum temperature	29.8 C (85.6 F)	44 of 100 (Notable)
Orenburg	Russia	Record high maximum temperature	40.7 C (105.3 F)	44 of 100 (Notable)
Imperial	United States	Record high minimum temperature	32.8 C (91.0 F)	44 of 100 (Notable)
Elizabeth City Cgas	United States	Record daily precipitation	77.2 mm (3.0 in)	44 of 100 (Notable)
Khmelnytskyi	Ukraine	Record daily precipitation	43.2 mm (1.7 in)	43 of 100 (Notable)
Chapel Hill 2 W	United States	Record low maximum temperature	22.8 C (73.0 F)	43 of 100 (Notable)
Watonga	United States	Record low minimum temperature	13.3 C (55.9 F)	43 of 100 (Notable)
Baudette	United States	Record high maximum temperature	35.6 C (96.1 F)	42 of 100 (Notable)
University Exp STN	United States	Record high maximum temperature	31.7 C (89.1 F)	42 of 100 (Notable)
Marion	United States	Record daily precipitation	124.7 mm (4.9 in)	40 of 100 (Notable)
Indio Fire STN	United States	Record high maximum temperature	48.9 C (120.0 F)	39 of 100 (Notable)
Shonkin 7 S	United States	Record daily precipitation	31.2 mm (1.2 in)	38 of 100 (Notable)
Plainview	United States	Record low minimum temperature	13.9 C (57.0 F)	38 of 100 (Notable)
Montelimar	France	Record low maximum temperature	20.9 C (69.6 F)	37 of 100 (Notable)
Lewiston	United States	Record low maximum temperature	22.8 C (73.0 F)	37 of 100 (Notable)
Minchumina	United States	Record high minimum temperature	18.3 C (64.9 F)	37 of 100 (Notable)
Plymouth 5 E	United States	Record low maximum temperature	22.8 C (73.0 F)	36 of 100 (Notable)
Marseilles-Marignane	France	Record low maximum temperature	22.4 C (72.3 F)	35 of 100 (Notable)
Souda Airport	Greece	Record high minimum temperature	27.0 C (80.6 F)	34 of 100 (Routine)
Timiryazevskij	Russia	Record high minimum temperature	23.4 C (74.1 F)	34 of 100 (Routine)
Chelan	United States	Record high maximum temperature	41.1 C (106.0 F)	34 of 100 (Routine)
Ft Pierce	United States	Record daily precipitation	38.9 mm (1.5 in)	33 of 100 (Routine)
Towner 2 NE	United States	Record high minimum temperature	21.1 C (70.0 F)	33 of 100 (Routine)
Craig	United States	Record high minimum temperature	14.4 C (57.9 F)	33 of 100 (Routine)
Roberts	Cayman Islands [United Kingdom]	Record daily precipitation	63.2 mm (2.5 in)	32 of 100 (Routine)
Alexandria Intl	Egypt	Record high maximum temperature	36.4 C (97.5 F)	32 of 100 (Routine)
Cedar Is	United States	Record daily precipitation	125.0 mm (4.9 in)	32 of 100 (Routine)
Longwood	United States	Record daily precipitation	81.0 mm (3.2 in)	32 of 100 (Routine)
Suffolk Lake Kilby	United States	Record low maximum temperature	21.7 C (71.1 F)	32 of 100 (Routine)
Imperial Co AP	United States	Record high maximum temperature	48.3 C (118.9 F)	32 of 100 (Routine)
Lumberton Rgnl AP	United States	Record low maximum temperature	24.4 C (75.9 F)	32 of 100 (Routine)
Blythe ASOS	United States	Record high maximum temperature	49.4 C (120.9 F)	32 of 100 (Routine)
Atlantic City Intl AP	United States	Record low maximum temperature	22.2 C (72.0 F)	32 of 100 (Routine)
Yibin	China	Record high maximum temperature	39.0 C (102.2 F)	31 of 100 (Routine)
Uralsk	Kazakhstan	Record high maximum temperature	42.3 C (108.1 F)	31 of 100 (Routine)
Benghazi Benina	Libya	Record high minimum temperature	26.7 C (80.1 F)	31 of 100 (Routine)
Schiphol	Netherlands	Record daily precipitation	31.0 mm (1.2 in)	31 of 100 (Routine)
Zyrjanka	Russia	Record low maximum temperature	8.7 C (47.7 F)	31 of 100 (Routine)
Imperial	United States	Record high maximum temperature	48.9 C (120.0 F)	31 of 100 (Routine)
Jasper	United States	Record daily precipitation	64.5 mm (2.5 in)	31 of 100 (Routine)
Jeanerette 5 NW	United States	Record low maximum temperature	27.2 C (81.0 F)	31 of 100 (Routine)
Gaylord Bay	United States	Record daily precipitation	64.3 mm (2.5 in)	31 of 100 (Routine)
Oceana NAS	United States	Record daily precipitation	76.7 mm (3.0 in)	31 of 100 (Routine)
Cape Grim Baps	Australia	Record daily precipitation	30.4 mm (1.2 in)	30 of 100 (Routine)
Hartwell	United States	Record low maximum temperature	23.9 C (75.0 F)	30 of 100 (Routine)
Hawthorne	United States	Record high maximum temperature	39.4 C (102.9 F)	30 of 100 (Routine)
Siler City 2 N	United States	Record low maximum temperature	23.3 C (73.9 F)	30 of 100 (Routine)
Tryon	United States	Record low maximum temperature	22.2 C (72.0 F)	30 of 100 (Routine)

Counts by Type and Timescale

691 records

Records set or tied on 4 August 2021 by type: Highest daily maximum 185, Lowest daily maximum 138, Highest daily minimum 183, Lowest daily minimum 81, Heaviest daily rainfall 104.

Records on 4 August 2021 by type
Record type	Records
Highest daily maximum	185
Lowest daily maximum	138
Highest daily minimum	183
Lowest daily minimum	81
Heaviest daily rainfall	104
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 August 2021 by timescale: all-time 4, monthly 22, daily 665.

How Much Records Were Beaten By

520 broken records

Margins by which the 520 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 122.7. Ties are not counted.

Top 20 by Significance

4 August 2021

Top 20 records on 4 August 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 August 2021	Ukhta Kalevala, RU	daily rain	41.9 mm (1.6 in)	20.5 mm (0.8 in)	72 years	64 of 100 (Major)
4 August 2021	Olekminsk, RU	daily rain	36.1 mm (1.4 in)	20.2 mm (0.8 in)	70 years	64 of 100 (Major)
4 August 2021	Cape Hatteras - Billy Mitchell, US	daily rain	145.5 mm (5.7 in)	95.0 mm (3.7 in)	60 years	64 of 100 (Major)
4 August 2021	Morehead City 2 WNW, US	daily rain	188.0 mm (7.4 in)	122.7 mm (4.8 in)	22 years	53 of 100 (Notable)
4 August 2021	Novyj Tor'jal, RU	daily rain	26.9 mm (1.1 in)	19.8 mm (0.8 in)	47 years	50 of 100 (Notable)
4 August 2021	Rogersville 1 NE, US	daily low max	21.1 C (70.0 F)	2.8 C (5.0 F)	108 years	50 of 100 (Notable)
4 August 2021	Usugli, RU	daily rain	53.1 mm (2.1 in)	26.0 mm (1.0 in)	44 years	49 of 100 (Notable)
4 August 2021	Winter Park, US	daily rain	27.9 mm (1.1 in)	12.2 mm (0.5 in)	55 years	49 of 100 (Notable)
4 August 2021	Padun, RU	daily rain	34.0 mm (1.3 in)	19.2 mm (0.8 in)	56 years	48 of 100 (Notable)
4 August 2021	Punta Gorda 4 ESE, US	daily rain	100.3 mm (3.9 in)	49.5 mm (1.9 in)	52 years	48 of 100 (Notable)
4 August 2021	Fish Creek (Hoddle Range), AU	daily rain	39.0 mm (1.5 in)	8.5 mm (0.33 in)	86 years	46 of 100 (Notable)
4 August 2021	Dillon 1 E, US	daily low max	15.0 C (59.0 F)	1.7 C (3.1 F)	100 years	46 of 100 (Notable)
4 August 2021	Derna, LY	all-time high min	29.8 C (85.6 F)	0.8 C (1.4 F)	43 years	44 of 100 (Notable)
4 August 2021	Orenburg, RU	daily high max	40.7 C (105.3 F)	2.1 C (3.8 F)	100 years	44 of 100 (Notable)
4 August 2021	Imperial, US	monthly high min	32.8 C (91.0 F)	0.6 C (1.1 F)	74 years	44 of 100 (Notable)
4 August 2021	Elizabeth City Cgas, US	daily rain	77.2 mm (3.0 in)	45.7 mm (1.8 in)	48 years	44 of 100 (Notable)
4 August 2021	Khmelnytskyi, UA	daily rain	43.2 mm (1.7 in)	18.9 mm (0.7 in)	62 years	43 of 100 (Notable)
4 August 2021	Chapel Hill 2 W, US	daily low max	22.8 C (73.0 F)	1.1 C (2.0 F)	126 years	43 of 100 (Notable)
4 August 2021	Watonga, US	daily low min	13.3 C (55.9 F)	1.1 C (2.0 F)	116 years	43 of 100 (Notable)
4 August 2021	Baudette, US	daily high max	35.6 C (96.1 F)	1.2 C (2.2 F)	100 years	42 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 2021

Records set or tied on this calendar date in each year from 1815 to 2021. 2021 had 691 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 2021-08-04: 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	503
20 to 40	12
40 to 60	3
60 to 80	0
80 to 100	1
100 to 120	0
120 to 140	1