Weather Records on 20 August 2011

987 weather records were set or tied worldwide on 20 August 2011. Highest significance: Misantla, MX.

Key Facts for 20 August 2011

On 20 August 2011, 987 weather records were set or tied at long-record stations worldwide.
650 were record highs and 182 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 24 monthly and 958 daily.
Misantla set a daily record precipitation of 111.8 mm (4.4 in) on 20 August 2011.
Across 163 earlier years (1797 to 2026) the same calendar date averaged 451 records.

Record Map

987 stations

987 station records on 20 August 2011 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 August 2011: highest significance records shown on the map
Station	Country	Type	Value	Significance
Misantla	Mexico	Record daily precipitation	111.8 mm (4.4 in)	67 of 100 (Major)
Palmer Job Corps	United States	Record daily precipitation	50.8 mm (2.0 in)	64 of 100 (Major)
Skagway	United States	Record daily precipitation	30.2 mm (1.2 in)	64 of 100 (Major)
Skulte	Latvia	Record daily precipitation	49.0 mm (1.9 in)	60 of 100 (Major)
Montgomery L&D	United States	Record daily precipitation	68.1 mm (2.7 in)	57 of 100 (Notable)
Wrangell AP	United States	Record daily precipitation	81.3 mm (3.2 in)	54 of 100 (Notable)
Acala	Mexico	Record daily precipitation	113.3 mm (4.5 in)	51 of 100 (Notable)
Lovsta	Sweden	Record daily precipitation	43.8 mm (1.7 in)	51 of 100 (Notable)
Isabela Substn	Puerto Rico [United States]	Record high minimum temperature	25.0 C (77.0 F)	48 of 100 (Notable)
Crockett	United States	Record high maximum temperature	42.2 C (108.0 F)	47 of 100 (Notable)
Port Alexander	United States	Record daily precipitation	137.7 mm (5.4 in)	46 of 100 (Notable)
Skriveri	Latvia	Record daily precipitation	33.0 mm (1.3 in)	45 of 100 (Notable)
Annex Creek	United States	Record daily precipitation	81.8 mm (3.2 in)	45 of 100 (Notable)
El Dorado	United States	Record high maximum temperature	41.7 C (107.1 F)	44 of 100 (Notable)
Paris	United States	Record high maximum temperature	43.9 C (111.0 F)	44 of 100 (Notable)
Payson	United States	Record daily precipitation	45.5 mm (1.8 in)	44 of 100 (Notable)
Risinge	Sweden	Record daily precipitation	36.0 mm (1.4 in)	43 of 100 (Notable)
Healy	United States	Record high maximum temperature	41.7 C (107.1 F)	43 of 100 (Notable)
Luna Rs	United States	Record high minimum temperature	13.9 C (57.0 F)	43 of 100 (Notable)
Ness City	United States	Record high maximum temperature	42.2 C (108.0 F)	42 of 100 (Notable)
Nelson	United States	Record daily precipitation	43.2 mm (1.7 in)	42 of 100 (Notable)
Red Cloud	United States	Record daily precipitation	66.0 mm (2.6 in)	42 of 100 (Notable)
Tashkent	Uzbekistan	Record high minimum temperature	22.7 C (72.9 F)	42 of 100 (Notable)
Kremsmuenster	Austria	Record high minimum temperature	19.9 C (67.8 F)	41 of 100 (Notable)
Corozal Substn	Puerto Rico [United States]	Record low maximum temperature	27.2 C (81.0 F)	41 of 100 (Notable)
Sonora	United States	Record high minimum temperature	24.4 C (75.9 F)	41 of 100 (Notable)
Lufkin Angelina Co AP	United States	Record high maximum temperature	41.1 C (106.0 F)	41 of 100 (Notable)
Darkes Forest (Kintyre)	Australia	Record daily precipitation	32.6 mm (1.3 in)	40 of 100 (Notable)
Mokpo	Korea, South	Record low maximum temperature	21.3 C (70.3 F)	40 of 100 (Notable)
Akjoujt	Mauritania	Record daily precipitation	86.1 mm (3.4 in)	40 of 100 (Notable)
Jal	United States	Record high minimum temperature	25.0 C (77.0 F)	40 of 100 (Notable)
Corsicana	United States	Record high minimum temperature	27.8 C (82.0 F)	40 of 100 (Notable)
Cimarron	United States	Record high maximum temperature	40.6 C (105.1 F)	39 of 100 (Notable)
Leesville	United States	Record high maximum temperature	41.1 C (106.0 F)	39 of 100 (Notable)
Palmerville	Australia	Record low minimum temperature	6.1 C (43.0 F)	38 of 100 (Notable)
Mersa Matruh	Egypt	Record high minimum temperature	25.6 C (78.1 F)	38 of 100 (Notable)
Metapa de Dominguez	Mexico	Record daily precipitation	85.9 mm (3.4 in)	38 of 100 (Notable)
Salekhard	Russia	Record low maximum temperature	8.2 C (46.8 F)	38 of 100 (Notable)
Sitka AP	United States	Record daily precipitation	73.4 mm (2.9 in)	38 of 100 (Notable)
Cairns Post Office	Australia	Record low minimum temperature	9.3 C (48.7 F)	37 of 100 (Notable)
Atoka	United States	Record high maximum temperature	43.9 C (111.0 F)	37 of 100 (Notable)
Okemah	United States	Record high minimum temperature	26.1 C (79.0 F)	37 of 100 (Notable)
Okmulgee Wtr Wks	United States	Record high maximum temperature	42.8 C (109.0 F)	37 of 100 (Notable)
Monroe Rgnl AP	United States	Record high maximum temperature	40.6 C (105.1 F)	37 of 100 (Notable)
Arellano	Mexico	Record high maximum temperature	32.8 C (91.0 F)	36 of 100 (Notable)
Flamingo Rs	United States	Record daily precipitation	58.4 mm (2.3 in)	36 of 100 (Notable)
Mt Pleasant	United States	Record high maximum temperature	42.2 C (108.0 F)	36 of 100 (Notable)
Petersburg 1	United States	Record daily precipitation	115.3 mm (4.5 in)	36 of 100 (Notable)
Pingliang	China	Record daily precipitation	55.2 mm (2.2 in)	35 of 100 (Notable)
Moron de la Frontera	Spain	Record high minimum temperature	28.5 C (83.3 F)	35 of 100 (Notable)
Vattholma	Sweden	Record daily precipitation	32.8 mm (1.3 in)	35 of 100 (Notable)
Clifton	United States	Record daily precipitation	44.4 mm (1.7 in)	35 of 100 (Notable)
Wellington	United States	Record high maximum temperature	40.6 C (105.1 F)	35 of 100 (Notable)
Antlers	United States	Record high maximum temperature	41.1 C (106.0 F)	35 of 100 (Notable)
Wichita Falls Muni AP	United States	Record high maximum temperature	41.7 C (107.1 F)	35 of 100 (Notable)
Santa Fe 2	United States	Record daily precipitation	46.5 mm (1.8 in)	34 of 100 (Routine)
Valmora	United States	Record high minimum temperature	15.6 C (60.1 F)	34 of 100 (Routine)
Vale	United States	Record high minimum temperature	20.0 C (68.0 F)	34 of 100 (Routine)
Hereford	United States	Record high minimum temperature	22.2 C (72.0 F)	34 of 100 (Routine)
Paris	United States	Record high minimum temperature	28.9 C (84.0 F)	34 of 100 (Routine)

Counts by Type and Timescale

987 records

Records set or tied on 20 August 2011 by type: Highest daily maximum 392, Lowest daily maximum 81, Highest daily minimum 258, Lowest daily minimum 101, Heaviest daily rainfall 155.

Records on 20 August 2011 by type
Record type	Records
Highest daily maximum	392
Lowest daily maximum	81
Highest daily minimum	258
Lowest daily minimum	101
Heaviest daily rainfall	155
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 August 2011 by timescale: all-time 5, monthly 24, daily 958.

How Much Records Were Beaten By

710 broken records

Margins by which the 710 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 84.3. Ties are not counted.

Top 20 by Significance

20 August 2011

Top 20 records on 20 August 2011 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 August 2011	Misantla, MX	daily rain	111.8 mm (4.4 in)	68.9 mm (2.7 in)	76 years	67 of 100 (Major)
20 August 2011	Palmer Job Corps, US	monthly rain	50.8 mm (2.0 in)	19.8 mm (0.8 in)	38 years	64 of 100 (Major)
20 August 2011	Skagway, US	daily rain	30.2 mm (1.2 in)	19.5 mm (0.8 in)	72 years	64 of 100 (Major)
20 August 2011	Skulte, LV	daily rain	49.0 mm (1.9 in)	36.5 mm (1.4 in)	50 years	60 of 100 (Major)
20 August 2011	Montgomery L&D, US	daily rain	68.1 mm (2.7 in)	51.1 mm (2.0 in)	41 years	57 of 100 (Notable)
20 August 2011	Wrangell AP, US	daily rain	81.3 mm (3.2 in)	19.6 mm (0.8 in)	92 years	54 of 100 (Notable)
20 August 2011	Acala, MX	daily rain	113.3 mm (4.5 in)	84.3 mm (3.3 in)	22 years	51 of 100 (Notable)
20 August 2011	Lovsta, SE	daily rain	43.8 mm (1.7 in)	27.5 mm (1.1 in)	46 years	51 of 100 (Notable)
20 August 2011	Isabela Substn, PR	daily high min	25.0 C (77.0 F)	1.1 C (2.0 F)	100 years	48 of 100 (Notable)
20 August 2011	Crockett, US	daily high max	42.2 C (108.0 F)	2.2 C (4.0 F)	101 years	47 of 100 (Notable)
20 August 2011	Port Alexander, US	daily rain	137.7 mm (5.4 in)	57.7 mm (2.3 in)	52 years	46 of 100 (Notable)
20 August 2011	Skriveri, LV	daily rain	33.0 mm (1.3 in)	17.3 mm (0.7 in)	50 years	45 of 100 (Notable)
20 August 2011	Annex Creek, US	daily rain	81.8 mm (3.2 in)	22.6 mm (0.9 in)	73 years	45 of 100 (Notable)
20 August 2011	El Dorado, US	daily high max	41.7 C (107.1 F)	1.7 C (3.1 F)	114 years	44 of 100 (Notable)
20 August 2011	Paris, US	daily high max	43.9 C (111.0 F)	2.8 C (5.0 F)	89 years	44 of 100 (Notable)
20 August 2011	Payson, US	daily rain	45.5 mm (1.8 in)	23.4 mm (0.9 in)	52 years	44 of 100 (Notable)
20 August 2011	Risinge, SE	daily rain	36.0 mm (1.4 in)	19.8 mm (0.8 in)	30 years	43 of 100 (Notable)
20 August 2011	Healy, US	daily high max	41.7 C (107.1 F)	1.7 C (3.1 F)	100 years	43 of 100 (Notable)
20 August 2011	Luna Rs, US	daily high min	13.9 C (57.0 F)	1.1 C (2.0 F)	108 years	43 of 100 (Notable)
20 August 2011	Ness City, US	daily high max	42.2 C (108.0 F)	1.1 C (2.0 F)	110 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 2011

Records set or tied on this calendar date in each year from 1797 to 2011. 2011 had 987 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 2011-08-20: 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 2026-10-15 (15 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	688
20 to 40	16
40 to 60	3
60 to 80	2
80 to 100	1