Weather Records on 4 August 2020

778 weather records were set or tied worldwide on 4 August 2020. Highest significance: Warriup, AU.

Key Facts for 4 August 2020

On 4 August 2020, 778 weather records were set or tied at long-record stations worldwide.
277 were record highs and 265 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 45 monthly and 729 daily.
Warriup set a monthly record daily precipitation of 110.0 mm (4.3 in) on 4 August 2020.
Across 165 earlier years (1815 to 2026) the same calendar date averaged 439 records.

Record Map

778 stations

778 station records on 4 August 2020 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 August 2020: highest significance records shown on the map
Station	Country	Type	Value	Significance
Warriup	Australia	Record daily precipitation	110.0 mm (4.3 in)	86 of 100 (Exceptional)
Cape Riche	Australia	Record daily precipitation	119.0 mm (4.7 in)	85 of 100 (Exceptional)
Chillinup	Australia	Record daily precipitation	43.2 mm (1.7 in)	80 of 100 (Exceptional)
Woodburn	Australia	Record daily precipitation	60.6 mm (2.4 in)	79 of 100 (Major)
Phoenixville 1 E	United States	Record daily precipitation	142.2 mm (5.6 in)	79 of 100 (Major)
White Gums	Australia	Record daily precipitation	56.0 mm (2.2 in)	78 of 100 (Major)
Mechanicsville 5 NE	United States	Record daily precipitation	163.1 mm (6.4 in)	76 of 100 (Major)
E Stroudsburg	United States	Record daily precipitation	124.5 mm (4.9 in)	74 of 100 (Major)
Reading Wb City	United States	Record daily precipitation	99.3 mm (3.9 in)	74 of 100 (Major)
Peppermint Grove	Australia	Record daily precipitation	99.0 mm (3.9 in)	73 of 100 (Major)
Ashland	United States	Record daily precipitation	104.1 mm (4.1 in)	73 of 100 (Major)
Phila Intl AP	United States	Record daily precipitation	105.7 mm (4.2 in)	69 of 100 (Major)
Zakatala	Azerbaijan	Record daily precipitation	99.3 mm (3.9 in)	68 of 100 (Major)
Kalgan River	Australia	Record daily precipitation	107.0 mm (4.2 in)	68 of 100 (Major)
Tamar	Australia	Record daily precipitation	102.6 mm (4.0 in)	65 of 100 (Major)
Annapolis US Naval Academy Aso	United States	Record daily precipitation	97.8 mm (3.9 in)	65 of 100 (Major)
Wilmington New Castle Co AP	United States	Record daily precipitation	113.8 mm (4.5 in)	64 of 100 (Major)
Albany Airport	Australia	Record daily precipitation	77.5 mm (3.1 in)	63 of 100 (Major)
Mettler	Australia	Record daily precipitation	103.6 mm (4.1 in)	63 of 100 (Major)
Little Chorkerup	Australia	Record daily precipitation	89.2 mm (3.5 in)	63 of 100 (Major)
Katta Barega	Australia	Record daily precipitation	52.0 mm (2.0 in)	62 of 100 (Major)
Gairdner	Australia	Record daily precipitation	53.0 mm (2.1 in)	61 of 100 (Major)
Albany Intl AP	United States	Record daily precipitation	99.6 mm (3.9 in)	60 of 100 (Major)
Wilkes-Barre/Scranton Intl AP	United States	Record daily precipitation	64.5 mm (2.5 in)	59 of 100 (Notable)
Monte Vista	Australia	Record daily precipitation	25.0 mm (1.0 in)	58 of 100 (Notable)
The Duke	Australia	Record daily precipitation	75.0 mm (3.0 in)	57 of 100 (Notable)
Wilmington Porter Rsch	United States	Record daily precipitation	101.3 mm (4.0 in)	57 of 100 (Notable)
Clayton Wtp	United States	Record daily precipitation	101.6 mm (4.0 in)	57 of 100 (Notable)
Royal Oak 2 SSW	United States	Record daily precipitation	123.7 mm (4.9 in)	56 of 100 (Notable)
Bremer Bay	Australia	Record daily precipitation	66.8 mm (2.6 in)	54 of 100 (Notable)
Hutsonville	United States	Record daily precipitation	73.4 mm (2.9 in)	54 of 100 (Notable)
Yale 1 NNW	United States	Record daily precipitation	61.5 mm (2.4 in)	54 of 100 (Notable)
Winterpock	United States	Record daily precipitation	97.5 mm (3.8 in)	54 of 100 (Notable)
Leirfjord	Norway	Record daily precipitation	51.5 mm (2.0 in)	53 of 100 (Notable)
Staunton Wtp	United States	Record daily precipitation	64.0 mm (2.5 in)	53 of 100 (Notable)
Tamaru	Australia	Record daily precipitation	71.0 mm (2.8 in)	52 of 100 (Notable)
Ruhnu	Latvia	Record daily precipitation	50.1 mm (2.0 in)	52 of 100 (Notable)
Ft Pickett	United States	Record daily precipitation	94.0 mm (3.7 in)	52 of 100 (Notable)
Marion	United States	Record daily precipitation	71.4 mm (2.8 in)	51 of 100 (Notable)
Myrup	Australia	Record daily precipitation	46.0 mm (1.8 in)	50 of 100 (Notable)
Benmore: Younger Botanic Garde	United Kingdom	Record daily precipitation	81.5 mm (3.2 in)	50 of 100 (Notable)
Roanoke Rapids	United States	Record daily precipitation	101.6 mm (4.0 in)	50 of 100 (Notable)
Pleasant Valley	Australia	Record daily precipitation	54.4 mm (2.1 in)	49 of 100 (Notable)
Little Grove	Australia	Record daily precipitation	84.4 mm (3.3 in)	49 of 100 (Notable)
Allentown Lehigh Vly Intl AP	United States	Record daily precipitation	139.2 mm (5.5 in)	49 of 100 (Notable)
Pardelup	Australia	Record daily precipitation	41.0 mm (1.6 in)	48 of 100 (Notable)
Windrush	Australia	Record daily precipitation	93.0 mm (3.7 in)	48 of 100 (Notable)
Henderson 2 NNW	United States	Record daily precipitation	94.0 mm (3.7 in)	48 of 100 (Notable)
Hartford Wwtp	United States	Record low maximum temperature	18.3 C (64.9 F)	48 of 100 (Notable)
Esperance Aero	Australia	Record daily precipitation	35.2 mm (1.4 in)	47 of 100 (Notable)
Campbell Town (Elizabeth R)	Australia	Record daily precipitation	51.0 mm (2.0 in)	47 of 100 (Notable)
Kotka Rankki	Finland	Record daily precipitation	31.3 mm (1.2 in)	47 of 100 (Notable)
Atyrau	Kazakhstan	Record low maximum temperature	20.6 C (69.1 F)	47 of 100 (Notable)
Flekkefjord	Norway	Record daily precipitation	62.0 mm (2.4 in)	47 of 100 (Notable)
Vanderbilt 11ENE	United States	Record low maximum temperature	15.0 C (59.0 F)	47 of 100 (Notable)
Cooperstown	United States	Record daily precipitation	58.9 mm (2.3 in)	47 of 100 (Notable)
Lancaster 2 NE Filt Plt	United States	Record daily precipitation	74.7 mm (2.9 in)	47 of 100 (Notable)
Octoraro Lake	United States	Record daily precipitation	128.3 mm (5.1 in)	47 of 100 (Notable)
Corbin	United States	Record daily precipitation	79.0 mm (3.1 in)	47 of 100 (Notable)
Wytheville	United States	Record low maximum temperature	20.0 C (68.0 F)	47 of 100 (Notable)

Counts by Type and Timescale

778 records

Records set or tied on 4 August 2020 by type: Highest daily maximum 134, Lowest daily maximum 193, Highest daily minimum 143, Lowest daily minimum 72, Heaviest daily rainfall 236.

Records on 4 August 2020 by type
Record type	Records
Highest daily maximum	134
Lowest daily maximum	193
Highest daily minimum	143
Lowest daily minimum	72
Heaviest daily rainfall	236
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 August 2020 by timescale: all-time 4, monthly 45, daily 729.

How Much Records Were Beaten By

613 broken records

Margins by which the 613 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 107.0. Ties are not counted.

Top 20 by Significance

4 August 2020

Top 20 records on 4 August 2020 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 August 2020	Warriup, AU	monthly rain	110.0 mm (4.3 in)	47.3 mm (1.9 in)	87 years	86 of 100 (Exceptional)
4 August 2020	Cape Riche, AU	monthly rain	119.0 mm (4.7 in)	44.8 mm (1.8 in)	84 years	85 of 100 (Exceptional)
4 August 2020	Chillinup, AU	daily rain	43.2 mm (1.7 in)	36.8 mm (1.4 in)	102 years	80 of 100 (Exceptional)
4 August 2020	Woodburn, AU	monthly rain	60.6 mm (2.4 in)	20.5 mm (0.8 in)	87 years	79 of 100 (Major)
4 August 2020	Phoenixville 1 E, US	daily rain	142.2 mm (5.6 in)	68.0 mm (2.7 in)	105 years	79 of 100 (Major)
4 August 2020	White Gums, AU	monthly rain	56.0 mm (2.2 in)	22.2 mm (0.9 in)	60 years	78 of 100 (Major)
4 August 2020	Mechanicsville 5 NE, US	daily rain	163.1 mm (6.4 in)	107.0 mm (4.2 in)	91 years	76 of 100 (Major)
4 August 2020	E Stroudsburg, US	daily rain	124.5 mm (4.9 in)	73.7 mm (2.9 in)	81 years	74 of 100 (Major)
4 August 2020	Reading Wb City, US	daily rain	99.3 mm (3.9 in)	49.8 mm (2.0 in)	105 years	74 of 100 (Major)
4 August 2020	Peppermint Grove, AU	monthly rain	99.0 mm (3.9 in)	46.0 mm (1.8 in)	43 years	73 of 100 (Major)
4 August 2020	Ashland, US	daily rain	104.1 mm (4.1 in)	53.3 mm (2.1 in)	105 years	73 of 100 (Major)
4 August 2020	Phila Intl AP, US	daily rain	105.7 mm (4.2 in)	67.6 mm (2.7 in)	71 years	69 of 100 (Major)
4 August 2020	Zakatala, AZ	daily rain	99.3 mm (3.9 in)	77.9 mm (3.1 in)	67 years	68 of 100 (Major)
4 August 2020	Kalgan River, AU	daily rain	107.0 mm (4.2 in)	74.0 mm (2.9 in)	62 years	68 of 100 (Major)
4 August 2020	Tamar, AU	monthly rain	102.6 mm (4.0 in)	27.6 mm (1.1 in)	28 years	65 of 100 (Major)
4 August 2020	Annapolis US Naval Academy Aso, US	daily rain	97.8 mm (3.9 in)	79.3 mm (3.1 in)	60 years	65 of 100 (Major)
4 August 2020	Wilmington New Castle Co AP, US	daily rain	113.8 mm (4.5 in)	79.8 mm (3.1 in)	51 years	64 of 100 (Major)
4 August 2020	Albany Airport, AU	monthly rain	77.5 mm (3.1 in)	26.7 mm (1.1 in)	28 years	63 of 100 (Major)
4 August 2020	Mettler, AU	monthly rain	103.6 mm (4.1 in)	25.2 mm (1.0 in)	26 years	63 of 100 (Major)
4 August 2020	Little Chorkerup, AU	monthly rain	89.2 mm (3.5 in)	29.5 mm (1.2 in)	28 years	63 of 100 (Major)

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 2020

Records set or tied on this calendar date in each year from 1815 to 2020. 2020 had 778 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 2020-08-04: 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	535
20 to 40	44
40 to 60	21
60 to 80	12
80 to 100	0
100 to 120	1