Weather Records on 20 August 2020

1,051 weather records were set or tied worldwide on 20 August 2020. Highest significance: Rock Mills, US.

Key Facts for 20 August 2020

On 20 August 2020, 1,051 weather records were set or tied at long-record stations worldwide.
880 were record highs and 81 were record lows, counting maximum and minimum temperature.
By timescale, 9 were all-time records, 30 monthly and 1,012 daily.
Rock Mills set a daily record precipitation of 72.9 mm (2.9 in) on 20 August 2020.
Across 163 earlier years (1797 to 2026) the same calendar date averaged 451 records.

Record Map

1,051 stations

1,051 station records on 20 August 2020 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 August 2020: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rock Mills	United States	Record daily precipitation	72.9 mm (2.9 in)	61 of 100 (Major)
Mt Vernon	United States	Record daily precipitation	83.8 mm (3.3 in)	57 of 100 (Notable)
Gadsden	United States	Record daily precipitation	114.3 mm (4.5 in)	55 of 100 (Notable)
Cascabel	United States	Record daily precipitation	50.8 mm (2.0 in)	53 of 100 (Notable)
Loa	United States	Record high maximum temperature	35.0 C (95.0 F)	53 of 100 (Notable)
Braganca	Portugal	Record daily precipitation	31.0 mm (1.2 in)	52 of 100 (Notable)
Deseret	United States	Record high maximum temperature	40.0 C (104.0 F)	50 of 100 (Notable)
Randolph	United States	Record high maximum temperature	33.9 C (93.0 F)	48 of 100 (Notable)
Divide Peak	United States	Record high maximum temperature	37.5 C (99.5 F)	48 of 100 (Notable)
St George	United States	Record high maximum temperature	43.9 C (111.0 F)	47 of 100 (Notable)
Glen St Mary 1 W	United States	Record low minimum temperature	15.6 C (60.1 F)	46 of 100 (Notable)
Caliente	United States	Record high maximum temperature	41.7 C (107.1 F)	45 of 100 (Notable)
Gascon	United States	Record high maximum temperature	33.3 C (91.9 F)	45 of 100 (Notable)
Dillon 1 E	United States	Record high maximum temperature	28.9 C (84.0 F)	44 of 100 (Notable)
Sidney Muni AP	United States	Record high minimum temperature	22.2 C (72.0 F)	44 of 100 (Notable)
Willcox	United States	Record high maximum temperature	40.6 C (105.1 F)	43 of 100 (Notable)
Searchlight	United States	Record high maximum temperature	41.1 C (106.0 F)	43 of 100 (Notable)
Yarrangobilly Caves	Australia	Record daily precipitation	33.0 mm (1.3 in)	42 of 100 (Notable)
Tombstone	United States	Record high minimum temperature	23.3 C (73.9 F)	42 of 100 (Notable)
Mancos 1SW	United States	Record high maximum temperature	33.9 C (93.0 F)	42 of 100 (Notable)
Hachita 1W	United States	Record high maximum temperature	39.4 C (102.9 F)	42 of 100 (Notable)
Logan Utah St UNIV	United States	Record high minimum temperature	21.7 C (71.1 F)	42 of 100 (Notable)
Jerome	United States	Record high maximum temperature	37.8 C (100.0 F)	41 of 100 (Notable)
Natural Brg	United States	Record high maximum temperature	37.2 C (99.0 F)	41 of 100 (Notable)
Castle Rock	United States	Record high maximum temperature	36.7 C (98.1 F)	41 of 100 (Notable)
Steamboat Springs	United States	Record high maximum temperature	32.8 C (91.0 F)	41 of 100 (Notable)
Searchlight	United States	Record high minimum temperature	26.1 C (79.0 F)	41 of 100 (Notable)
Morgan	United States	Record high minimum temperature	18.9 C (66.0 F)	41 of 100 (Notable)
Richfield Radio Ksvc	United States	Record high maximum temperature	37.2 C (99.0 F)	41 of 100 (Notable)
Jerome	United States	Record high minimum temperature	25.0 C (77.0 F)	40 of 100 (Notable)
Natural Brg	United States	Record high minimum temperature	21.7 C (71.1 F)	40 of 100 (Notable)
Shoshone	United States	Record high maximum temperature	35.6 C (96.1 F)	40 of 100 (Notable)
Tonopah	United States	Record high maximum temperature	36.7 C (98.1 F)	40 of 100 (Notable)
Pudasjarvi Jaurakkajarvi	Finland	Record daily precipitation	32.1 mm (1.3 in)	39 of 100 (Notable)
Jagdalpur	India	Record daily precipitation	118.1 mm (4.6 in)	39 of 100 (Notable)
Quartzsite	United States	Record high maximum temperature	46.7 C (116.1 F)	39 of 100 (Notable)
Monte Vista 2W	United States	Record high maximum temperature	31.7 C (89.1 F)	39 of 100 (Notable)
Marion	United States	Record daily precipitation	66.5 mm (2.6 in)	39 of 100 (Notable)
Combolcha	Ethiopia	Record daily precipitation	50.0 mm (2.0 in)	38 of 100 (Notable)
Mactan Cebu Intl	Philippines	Record daily precipitation	83.1 mm (3.3 in)	38 of 100 (Notable)
Casa Grande	United States	Record high minimum temperature	31.7 C (89.1 F)	38 of 100 (Notable)
Montrose #2	United States	Record high maximum temperature	36.1 C (97.0 F)	38 of 100 (Notable)
Magueyes Is	Puerto Rico [United States]	Record low minimum temperature	18.3 C (64.9 F)	37 of 100 (Notable)
Northdale	United States	Record high maximum temperature	36.1 C (97.0 F)	37 of 100 (Notable)
Kanab	United States	Record high maximum temperature	39.4 C (102.9 F)	37 of 100 (Notable)
Zion Np	United States	Record high maximum temperature	43.3 C (109.9 F)	37 of 100 (Notable)
Coupeville 1 S	United States	Record high minimum temperature	15.6 C (60.1 F)	37 of 100 (Notable)
Quillayute AP	United States	Record daily precipitation	50.8 mm (2.0 in)	37 of 100 (Notable)
Abbeville	France	Record high minimum temperature	19.3 C (66.7 F)	36 of 100 (Notable)
Quelimane	Mozambique	Record high minimum temperature	23.0 C (73.4 F)	36 of 100 (Notable)
San Sebastian - Igueldo	Spain	Record high maximum temperature	34.0 C (93.2 F)	36 of 100 (Notable)
Palomar Mtn Obsy	United States	Record high minimum temperature	24.4 C (75.9 F)	36 of 100 (Notable)
San Francisco Oceanside	United States	Record low minimum temperature	6.1 C (43.0 F)	36 of 100 (Notable)
Turtle Lake	United States	Record high maximum temperature	37.8 C (100.0 F)	36 of 100 (Notable)
Needles AP	United States	Record high maximum temperature	47.8 C (118.0 F)	36 of 100 (Notable)
Avalon Catalina AP	United States	Record high maximum temperature	35.6 C (96.1 F)	36 of 100 (Notable)
Bad Salzuflen	Germany	Record high minimum temperature	19.5 C (67.1 F)	35 of 100 (Notable)
Rockford 3 ESE	United States	Record daily precipitation	55.9 mm (2.2 in)	35 of 100 (Notable)
Gilroy	United States	Record high minimum temperature	17.2 C (63.0 F)	35 of 100 (Notable)
Barstow-Daggett AP	United States	Record high maximum temperature	45.0 C (113.0 F)	35 of 100 (Notable)

Counts by Type and Timescale

1,051 records

Records set or tied on 20 August 2020 by type: Highest daily maximum 426, Lowest daily maximum 17, Highest daily minimum 454, Lowest daily minimum 64, Heaviest daily rainfall 90.

Records on 20 August 2020 by type
Record type	Records
Highest daily maximum	426
Lowest daily maximum	17
Highest daily minimum	454
Lowest daily minimum	64
Heaviest daily rainfall	90
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 August 2020 by timescale: all-time 9, monthly 30, daily 1,012.

How Much Records Were Beaten By

814 broken records

Margins by which the 814 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 76.0. Ties are not counted.

Top 20 by Significance

20 August 2020

Top 20 records on 20 August 2020 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 August 2020	Rock Mills, US	daily rain	72.9 mm (2.9 in)	42.4 mm (1.7 in)	78 years	61 of 100 (Major)
20 August 2020	Mt Vernon, US	daily rain	83.8 mm (3.3 in)	33.0 mm (1.3 in)	121 years	57 of 100 (Notable)
20 August 2020	Gadsden, US	daily rain	114.3 mm (4.5 in)	63.5 mm (2.5 in)	32 years	55 of 100 (Notable)
20 August 2020	Cascabel, US	daily rain	50.8 mm (2.0 in)	46.7 mm (1.8 in)	28 years	53 of 100 (Notable)
20 August 2020	Loa, US	daily high max	35.0 C (95.0 F)	3.9 C (7.0 F)	117 years	53 of 100 (Notable)
20 August 2020	Braganca, PT	daily rain	31.0 mm (1.2 in)	12.5 mm (0.5 in)	76 years	52 of 100 (Notable)
20 August 2020	Deseret, US	daily high max	40.0 C (104.0 F)	3.3 C (5.9 F)	107 years	50 of 100 (Notable)
20 August 2020	Randolph, US	daily high max	33.9 C (93.0 F)	2.8 C (5.0 F)	126 years	48 of 100 (Notable)
20 August 2020	Divide Peak, US	all-time high max	37.5 C (99.5 F)	5.5 C (9.9 F)	31 years	48 of 100 (Notable)
20 August 2020	St George, US	daily high max	43.9 C (111.0 F)	2.2 C (4.0 F)	125 years	47 of 100 (Notable)
20 August 2020	Glen St Mary 1 W, US	daily low min	15.6 C (60.1 F)	2.7 C (4.9 F)	64 years	46 of 100 (Notable)
20 August 2020	Caliente, US	daily high max	41.7 C (107.1 F)	1.7 C (3.1 F)	110 years	45 of 100 (Notable)
20 August 2020	Gascon, US	all-time high max	33.3 C (91.9 F)	0.5 C (0.9 F)	63 years	45 of 100 (Notable)
20 August 2020	Dillon 1 E, US	daily high max	28.9 C (84.0 F)	1.1 C (2.0 F)	110 years	44 of 100 (Notable)
20 August 2020	Sidney Muni AP, US	daily high min	22.2 C (72.0 F)	5.0 C (9.0 F)	68 years	44 of 100 (Notable)
20 August 2020	Willcox, US	daily high max	40.6 C (105.1 F)	1.2 C (2.2 F)	105 years	43 of 100 (Notable)
20 August 2020	Searchlight, US	daily high max	41.1 C (106.0 F)	1.1 C (2.0 F)	105 years	43 of 100 (Notable)
20 August 2020	Yarrangobilly Caves, AU	daily rain	33.0 mm (1.3 in)	2.5 mm (0.10 in)	111 years	42 of 100 (Notable)
20 August 2020	Tombstone, US	daily high min	23.3 C (73.9 F)	0.5 C (0.9 F)	121 years	42 of 100 (Notable)
20 August 2020	Mancos 1SW, US	daily high max	33.9 C (93.0 F)	0.6 C (1.1 F)	115 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

1797 to 2020

Records set or tied on this calendar date in each year from 1797 to 2020. 2020 had 1,051 records.

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

Records on 08-20 in each year
Year	Records
1797	1
1807	1
1809	2
1816	1
1830	1
1832	1
1838	1
1840	1
1842	1
1846	1
1849	1
1850	1
1852	1
1858	3
1863	5
1867	4
1870	3
1871	1
1873	1
1875	2
1877	1
1883	2
1884	2
1885	6
1886	1
1888	1
1889	2
1890	2
1891	2
1892	6
1893	1
1894	1
1895	1
1896	5
1897	6
1898	1
1899	5
1900	7
1901	12
1902	3
1903	7
1904	30
1905	7
1906	26
1907	15
1908	21
1909	69
1910	7
1911	18
1912	25
1913	23
1914	15
1915	14
1916	74
1917	51
1918	69
1919	25
1920	47
1921	23
1922	52
1923	83
1924	132
1925	193
1926	187
1927	338
1928	101
1929	213
1930	318
1931	214
1932	299
1933	324
1934	376
1935	339
1936	543
1937	537
1938	250
1939	448
1940	695
1941	230
1942	429
1943	436
1944	355
1945	398
1946	349
1947	988
1948	403
1949	431
1950	1,341
1951	824
1952	425
1953	441
1954	476
1955	848
1956	678
1957	342
1958	281
1959	764
1960	465
1961	520
1962	684
1963	577
1964	629
1965	470
1966	1,094
1967	657
1968	862
1969	608
1970	414
1971	585
1972	522
1973	490
1974	565
1975	411
1976	894
1977	860
1978	563
1979	1,009
1980	991
1981	856
1982	620
1983	1,465
1984	696
1985	666
1986	819
1987	564
1988	991
1989	603
1990	1,262
1991	804
1992	1,168
1993	759
1994	719
1995	1,113
1996	900
1997	1,214
1998	802
1999	810
2000	989
2001	909
2002	1,208
2003	1,031
2004	1,333
2005	1,112
2006	851
2007	1,955
2008	1,170
2009	1,414
2010	1,028
2011	987
2012	1,086
2013	545
2014	582
2015	1,075
2016	872
2017	324
2018	657
2019	698
2020	1,051
2021	1,028
2022	1,038
2023	1,479
2024	589
2025	1,134
2026	985

Download the Data

Data for records on 2020-08-20: 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	788
10 to 20	15
20 to 30	5
30 to 40	1
40 to 50	3
50 to 60	0
60 to 70	1
70 to 80	1