Weather Records on 21 August 2020

1,147 weather records were set or tied worldwide on 21 August 2020. Highest significance: Moore Haven Lock 1, US.

Key Facts for 21 August 2020

On 21 August 2020, 1,147 weather records were set or tied at long-record stations worldwide.
964 were record highs and 81 were record lows, counting maximum and minimum temperature.
By timescale, 7 were all-time records, 18 monthly and 1,122 daily.
Moore Haven Lock 1 set a daily record precipitation of 109.7 mm (4.3 in) on 21 August 2020.
Across 165 earlier years (1800 to 2026) the same calendar date averaged 446 records.

Record Map

1,147 stations

1,147 station records on 21 August 2020 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 August 2020: highest significance records shown on the map
Station	Country	Type	Value	Significance
Moore Haven Lock 1	United States	Record daily precipitation	109.7 mm (4.3 in)	69 of 100 (Major)
Sandefjord	Norway	Record daily precipitation	65.0 mm (2.6 in)	63 of 100 (Major)
Tian-Shan	Kyrgyzstan	Record daily precipitation	99.3 mm (3.9 in)	62 of 100 (Major)
Bynum 4 SSE	United States	Record daily precipitation	34.0 mm (1.3 in)	61 of 100 (Major)
Aseral	Norway	Record daily precipitation	48.6 mm (1.9 in)	54 of 100 (Notable)
Phrae	Thailand	Record daily precipitation	126.2 mm (5.0 in)	52 of 100 (Notable)
Palmerville	Australia	Record high maximum temperature	36.2 C (97.2 F)	46 of 100 (Notable)
Crystal Springs Exp STN	United States	Record daily precipitation	50.0 mm (2.0 in)	46 of 100 (Notable)
Schwerin	Germany	Record high minimum temperature	20.2 C (68.4 F)	44 of 100 (Notable)
Fairmont	United States	Record high maximum temperature	41.1 C (106.0 F)	44 of 100 (Notable)
Hilgenroth	Germany	Record high minimum temperature	21.0 C (69.8 F)	43 of 100 (Notable)
Bad Salzuflen	Germany	Record high minimum temperature	21.8 C (71.2 F)	43 of 100 (Notable)
Coeur D'Alene	United States	Record high minimum temperature	20.6 C (69.1 F)	43 of 100 (Notable)
Nikolaevsk-Na-Amure	Russia	Record low minimum temperature	3.6 C (38.5 F)	42 of 100 (Notable)
Leeds	United States	Record daily precipitation	57.2 mm (2.3 in)	42 of 100 (Notable)
Tombstone	United States	Record high maximum temperature	38.9 C (102.0 F)	42 of 100 (Notable)
Montrose #2	United States	Record high maximum temperature	36.1 C (97.0 F)	42 of 100 (Notable)
Saguache	United States	Record high maximum temperature	31.7 C (89.1 F)	42 of 100 (Notable)
Manti	United States	Record high minimum temperature	16.7 C (62.1 F)	42 of 100 (Notable)
Lille-Lesquin	France	Record high minimum temperature	21.6 C (70.9 F)	41 of 100 (Notable)
Leipzig-Holzhausen	Germany	Record high minimum temperature	19.9 C (67.8 F)	41 of 100 (Notable)
Coweeta Exp STN	United States	Record daily precipitation	54.9 mm (2.2 in)	41 of 100 (Notable)
Lincolnton 4 W	United States	Record daily precipitation	48.8 mm (1.9 in)	41 of 100 (Notable)
Drain	United States	Record high minimum temperature	16.7 C (62.1 F)	41 of 100 (Notable)
Spokane Intl AP	United States	Record high minimum temperature	18.3 C (64.9 F)	41 of 100 (Notable)
Montabaur	Germany	Record high minimum temperature	18.6 C (65.5 F)	40 of 100 (Notable)
Jerome	United States	Record high maximum temperature	37.2 C (99.0 F)	40 of 100 (Notable)
Innsbruck	Austria	Record high maximum temperature	35.6 C (96.1 F)	39 of 100 (Notable)
Dijon-Longvic	France	Record high minimum temperature	22.3 C (72.1 F)	39 of 100 (Notable)
Sumoto	Japan	Record high maximum temperature	37.7 C (99.9 F)	39 of 100 (Notable)
Iron Mtn	United States	Record high minimum temperature	33.9 C (93.0 F)	39 of 100 (Notable)
Parker Rsvr	United States	Record high maximum temperature	47.8 C (118.0 F)	39 of 100 (Notable)
Slidell	United States	Record daily precipitation	87.6 mm (3.4 in)	39 of 100 (Notable)
N Wilkesboro	United States	Record daily precipitation	48.5 mm (1.9 in)	39 of 100 (Notable)
Ibapah	United States	Record high maximum temperature	37.8 C (100.0 F)	39 of 100 (Notable)
Panguitch	United States	Record high maximum temperature	33.9 C (93.0 F)	39 of 100 (Notable)
Perl-Nennig	Germany	Record high minimum temperature	21.8 C (71.2 F)	38 of 100 (Notable)
Srinagar	India	Record daily precipitation	26.9 mm (1.1 in)	38 of 100 (Notable)
Greensboro	United States	Record daily precipitation	44.7 mm (1.8 in)	38 of 100 (Notable)
Cullowhee	United States	Record daily precipitation	40.1 mm (1.6 in)	38 of 100 (Notable)
Abbeville	France	Record high minimum temperature	20.8 C (69.4 F)	37 of 100 (Notable)
Kaiserslautern	Germany	Record high minimum temperature	19.2 C (66.6 F)	37 of 100 (Notable)
Angermunde	Germany	Record high minimum temperature	18.4 C (65.1 F)	37 of 100 (Notable)
Gottingen	Germany	Record high minimum temperature	19.2 C (66.6 F)	37 of 100 (Notable)
Bagdad	United States	Record high maximum temperature	39.4 C (102.9 F)	37 of 100 (Notable)
Haines AP	United States	Record high minimum temperature	13.3 C (55.9 F)	37 of 100 (Notable)
Vilsandi	Estonia	Record high maximum temperature	25.6 C (78.1 F)	36 of 100 (Notable)
Lennestadt-Theten	Germany	Record high minimum temperature	21.7 C (71.1 F)	36 of 100 (Notable)
Heinersreuth-Vollhof	Germany	Record high maximum temperature	34.6 C (94.3 F)	36 of 100 (Notable)
Maastricht	Netherlands	Record high minimum temperature	19.7 C (67.5 F)	36 of 100 (Notable)
Larvik	Norway	Record daily precipitation	41.0 mm (1.6 in)	36 of 100 (Notable)
Saint Johns	United States	Record high maximum temperature	36.7 C (98.1 F)	36 of 100 (Notable)
Franklin	United States	Record daily precipitation	31.8 mm (1.3 in)	36 of 100 (Notable)
Albuquerque Intl AP	United States	Record high maximum temperature	37.2 C (99.0 F)	36 of 100 (Notable)
Strasbourg-Entzheim	France	Record high maximum temperature	36.7 C (98.1 F)	35 of 100 (Notable)
Berlin-Tempelhof	Germany	Record high maximum temperature	36.4 C (97.5 F)	35 of 100 (Notable)
Berlin-Tempelhof	Germany	Record high minimum temperature	20.1 C (68.2 F)	35 of 100 (Notable)
Trier-Zewen	Germany	Record high minimum temperature	22.8 C (73.0 F)	35 of 100 (Notable)
Waren	Germany	Record high minimum temperature	18.9 C (66.0 F)	35 of 100 (Notable)
Timiryazevskij	Russia	Record low minimum temperature	8.0 C (46.4 F)	35 of 100 (Notable)

Counts by Type and Timescale

1,147 records

Records set or tied on 21 August 2020 by type: Highest daily maximum 476, Lowest daily maximum 28, Highest daily minimum 488, Lowest daily minimum 53, Heaviest daily rainfall 102.

Records on 21 August 2020 by type
Record type	Records
Highest daily maximum	476
Lowest daily maximum	28
Highest daily minimum	488
Lowest daily minimum	53
Heaviest daily rainfall	102
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 August 2020 by timescale: all-time 7, monthly 18, daily 1,122.

How Much Records Were Beaten By

948 broken records

Margins by which the 948 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 81.4. Ties are not counted.

Top 20 by Significance

21 August 2020

Top 20 records on 21 August 2020 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 August 2020	Moore Haven Lock 1, US	daily rain	109.7 mm (4.3 in)	53.1 mm (2.1 in)	88 years	69 of 100 (Major)
21 August 2020	Sandefjord, NO	daily rain	65.0 mm (2.6 in)	44.3 mm (1.7 in)	59 years	63 of 100 (Major)
21 August 2020	Tian-Shan, KG	daily rain	99.3 mm (3.9 in)	81.4 mm (3.2 in)	45 years	62 of 100 (Major)
21 August 2020	Bynum 4 SSE, US	daily rain	34.0 mm (1.3 in)	31.0 mm (1.2 in)	42 years	61 of 100 (Major)
21 August 2020	Aseral, NO	daily rain	48.6 mm (1.9 in)	17.2 mm (0.7 in)	112 years	54 of 100 (Notable)
21 August 2020	Phrae, TH	daily rain	126.2 mm (5.0 in)	51.3 mm (2.0 in)	59 years	52 of 100 (Notable)
21 August 2020	Palmerville, AU	daily high max	36.2 C (97.2 F)	1.3 C (2.3 F)	119 years	46 of 100 (Notable)
21 August 2020	Crystal Springs Exp STN, US	daily rain	50.0 mm (2.0 in)	9.9 mm (0.39 in)	118 years	46 of 100 (Notable)
21 August 2020	Schwerin, DE	daily high min	20.2 C (68.4 F)	2.2 C (4.0 F)	88 years	44 of 100 (Notable)
21 August 2020	Fairmont, US	daily high max	41.1 C (106.0 F)	1.7 C (3.1 F)	110 years	44 of 100 (Notable)
21 August 2020	Hilgenroth, DE	monthly high min	21.0 C (69.8 F)	0.6 C (1.1 F)	77 years	43 of 100 (Notable)
21 August 2020	Bad Salzuflen, DE	daily high min	21.8 C (71.2 F)	3.5 C (6.3 F)	77 years	43 of 100 (Notable)
21 August 2020	Coeur D'Alene, US	daily high min	20.6 C (69.1 F)	1.7 C (3.1 F)	95 years	43 of 100 (Notable)
21 August 2020	Nikolaevsk-Na-Amure, RU	daily low min	3.6 C (38.5 F)	0.7 C (1.3 F)	102 years	42 of 100 (Notable)
21 August 2020	Leeds, US	daily rain	57.2 mm (2.3 in)	11.5 mm (0.5 in)	86 years	42 of 100 (Notable)
21 August 2020	Tombstone, US	daily high max	38.9 C (102.0 F)	0.6 C (1.1 F)	105 years	42 of 100 (Notable)
21 August 2020	Montrose #2, US	daily high max	36.1 C (97.0 F)	1.7 C (3.1 F)	92 years	42 of 100 (Notable)
21 August 2020	Saguache, US	daily high max	31.7 C (89.1 F)	0.6 C (1.1 F)	115 years	42 of 100 (Notable)
21 August 2020	Manti, US	daily high min	16.7 C (62.1 F)	0.6 C (1.1 F)	117 years	42 of 100 (Notable)
21 August 2020	Lille-Lesquin, FR	daily high min	21.6 C (70.9 F)	3.6 C (6.5 F)	73 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

1800 to 2020

Records set or tied on this calendar date in each year from 1800 to 2020. 2020 had 1,147 records.

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

Records on 08-21 in each year
Year	Records
1800	1
1802	1
1804	1
1807	1
1816	1
1818	1
1832	1
1834	1
1839	3
1843	1
1847	1
1849	3
1850	1
1851	2
1863	1
1866	1
1867	2
1870	3
1871	2
1872	1
1873	1
1876	1
1877	2
1879	2
1884	2
1885	5
1886	1
1887	5
1888	2
1889	3
1890	4
1891	2
1893	4
1894	8
1895	3
1896	2
1897	4
1898	4
1899	7
1900	4
1901	9
1902	8
1903	6
1904	8
1905	4
1906	22
1907	20
1908	13
1909	17
1910	33
1911	19
1912	50
1913	37
1914	24
1915	21
1916	106
1917	101
1918	202
1919	19
1920	59
1921	34
1922	58
1923	111
1924	135
1925	220
1926	227
1927	228
1928	110
1929	234
1930	297
1931	277
1932	264
1933	328
1934	320
1935	318
1936	807
1937	762
1938	239
1939	630
1940	683
1941	180
1942	415
1943	438
1944	346
1945	544
1946	390
1947	954
1948	305
1949	508
1950	958
1951	699
1952	368
1953	331
1954	497
1955	885
1956	701
1957	490
1958	389
1959	704
1960	490
1961	644
1962	469
1963	338
1964	794
1965	455
1966	661
1967	541
1968	1,014
1969	650
1970	373
1971	660
1972	441
1973	438
1974	564
1975	545
1976	756
1977	764
1978	445
1979	778
1980	904
1981	1,015
1982	769
1983	1,407
1984	975
1985	623
1986	1,166
1987	740
1988	889
1989	828
1990	910
1991	828
1992	957
1993	698
1994	968
1995	962
1996	950
1997	1,291
1998	948
1999	717
2000	861
2001	797
2002	965
2003	1,241
2004	1,585
2005	1,071
2006	797
2007	1,829
2008	1,012
2009	1,319
2010	1,155
2011	1,022
2012	990
2013	513
2014	624
2015	651
2016	890
2017	347
2018	816
2019	631
2020	1,147
2021	767
2022	917
2023	1,826
2024	777
2025	1,230
2026	1,290

Download the Data

Data for records on 2020-08-21: 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-13. Last revised 13 October 2026 (2026-10-13).

Histogram of margins by which records were beaten on 21 August 2020
Margin	Records
0 to 20	935
20 to 40	8
40 to 60	4
60 to 80	0
80 to 100	1