Weather Records on 21 August 2005

1,071 weather records were set or tied worldwide on 21 August 2005. Highest significance: Hobart Muni AP, US.

Key Facts for 21 August 2005

On 21 August 2005, 1,071 weather records were set or tied at long-record stations worldwide.
710 were record highs and 185 were record lows, counting maximum and minimum temperature.
By timescale, 14 were all-time records, 41 monthly and 1,016 daily.
Hobart Muni AP set a daily record precipitation of 99.1 mm (3.9 in) on 21 August 2005.
Across 165 earlier years (1800 to 2026) the same calendar date averaged 446 records.

Record Map

1,071 stations

1,071 station records on 21 August 2005 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 August 2005: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hobart Muni AP	United States	Record daily precipitation	99.1 mm (3.9 in)	68 of 100 (Major)
Atbasar	Kazakhstan	Record daily precipitation	28.5 mm (1.1 in)	67 of 100 (Major)
Tasiilaq	Greenland [Denmark]	Record daily precipitation	48.8 mm (1.9 in)	63 of 100 (Major)
Sayre	United States	Record daily precipitation	79.8 mm (3.1 in)	63 of 100 (Major)
Elk City 4 W	United States	Record daily precipitation	99.6 mm (3.9 in)	59 of 100 (Notable)
Grenola 1 N	United States	Record daily precipitation	71.9 mm (2.8 in)	53 of 100 (Notable)
Hechingen	Germany	Record daily precipitation	60.5 mm (2.4 in)	52 of 100 (Notable)
Moravia 1 E	United States	Record daily precipitation	81.0 mm (3.2 in)	52 of 100 (Notable)
Baise	China	Record daily precipitation	108.3 mm (4.3 in)	51 of 100 (Notable)
Fall Rvr Lake	United States	Record daily precipitation	63.8 mm (2.5 in)	51 of 100 (Notable)
Longton	United States	Record daily precipitation	87.6 mm (3.4 in)	51 of 100 (Notable)
Nakhon Sawan	Thailand	Record daily precipitation	101.6 mm (4.0 in)	50 of 100 (Notable)
Rio Lagartos	Mexico	Record daily precipitation	66.8 mm (2.6 in)	49 of 100 (Notable)
Lancaster	United States	Record daily precipitation	55.1 mm (2.2 in)	48 of 100 (Notable)
Teloloapan	Mexico	Record daily precipitation	82.8 mm (3.3 in)	47 of 100 (Notable)
Knin	Croatia	Record daily precipitation	154.6 mm (6.1 in)	46 of 100 (Notable)
Errol	United States	Record daily precipitation	53.8 mm (2.1 in)	46 of 100 (Notable)
Newport 1 NW	United States	Record high minimum temperature	23.3 C (73.9 F)	46 of 100 (Notable)
New Iberia AP - Acadiana Rgnl	United States	Record high minimum temperature	27.2 C (81.0 F)	45 of 100 (Notable)
Franklinville	United States	Record high minimum temperature	20.0 C (68.0 F)	45 of 100 (Notable)
Renovo	United States	Record high minimum temperature	21.1 C (70.0 F)	45 of 100 (Notable)
Beaufort Wwtp	United States	Record high minimum temperature	26.7 C (80.1 F)	45 of 100 (Notable)
Tilzapotla	Mexico	Record low maximum temperature	22.8 C (73.0 F)	44 of 100 (Notable)
Loma Fina	Mexico	Record low maximum temperature	22.8 C (73.0 F)	44 of 100 (Notable)
Farmerville	United States	Record high minimum temperature	26.7 C (80.1 F)	44 of 100 (Notable)
Kingfisher	United States	Record daily precipitation	82.6 mm (3.3 in)	44 of 100 (Notable)
Pesaro	Italy	Record daily precipitation	48.9 mm (1.9 in)	43 of 100 (Notable)
Zumpango del Rio	Mexico	Record daily precipitation	45.0 mm (1.8 in)	43 of 100 (Notable)
Tarboro 1 S	United States	Record high minimum temperature	24.4 C (75.9 F)	43 of 100 (Notable)
Elyria 3 E	United States	Record daily precipitation	64.0 mm (2.5 in)	43 of 100 (Notable)
Valdosta 2 S	United States	Record high minimum temperature	23.9 C (75.0 F)	42 of 100 (Notable)
Port Gibson 1 NE	United States	Record high minimum temperature	23.3 C (73.9 F)	42 of 100 (Notable)
Sandy Hook	United States	Record high minimum temperature	23.9 C (75.0 F)	42 of 100 (Notable)
Waverly	United States	Record high minimum temperature	20.6 C (69.1 F)	42 of 100 (Notable)
Fayetteville (Pwc)	United States	Record high minimum temperature	25.6 C (78.1 F)	42 of 100 (Notable)
Kinston 7 SE	United States	Record high minimum temperature	23.9 C (75.0 F)	42 of 100 (Notable)
Geary	United States	Record daily precipitation	68.6 mm (2.7 in)	42 of 100 (Notable)
Reydon 2SSE	United States	Record daily precipitation	43.2 mm (1.7 in)	42 of 100 (Notable)
Winnsboro	United States	Record high minimum temperature	23.9 C (75.0 F)	42 of 100 (Notable)
Madison 3NNW	United States	Record high minimum temperature	23.3 C (73.9 F)	42 of 100 (Notable)
Aleksandrovskoe	Russia	Record daily precipitation	35.4 mm (1.4 in)	41 of 100 (Notable)
Amistad 5 SSW	United States	Record daily precipitation	43.9 mm (1.7 in)	40 of 100 (Notable)
Franklin Sewage Plt	United States	Record high minimum temperature	23.9 C (75.0 F)	40 of 100 (Notable)
Waynesboro	United States	Record high minimum temperature	23.3 C (73.9 F)	40 of 100 (Notable)
Union 3 SSE	United States	Record high minimum temperature	21.1 C (70.0 F)	40 of 100 (Notable)
Semej	Kazakhstan	Record high maximum temperature	37.4 C (99.3 F)	39 of 100 (Notable)
Onega	Russia	Record daily precipitation	31.3 mm (1.2 in)	39 of 100 (Notable)
Cambridge	United States	Record high maximum temperature	40.6 C (105.1 F)	39 of 100 (Notable)
Tallulah	United States	Record high minimum temperature	25.0 C (77.0 F)	39 of 100 (Notable)
Lebanon 2W	United States	Record daily precipitation	95.5 mm (3.8 in)	39 of 100 (Notable)
Okeene	United States	Record daily precipitation	41.1 mm (1.6 in)	39 of 100 (Notable)
Anderson	United States	Record high minimum temperature	26.1 C (79.0 F)	39 of 100 (Notable)
Motozintla (Smn)	Mexico	Record daily precipitation	36.8 mm (1.4 in)	38 of 100 (Notable)
Villaflores (Smn)	Mexico	Record daily precipitation	85.1 mm (3.4 in)	38 of 100 (Notable)
Lake Providence	United States	Record high minimum temperature	25.6 C (78.1 F)	38 of 100 (Notable)
Hohenwald	United States	Record high minimum temperature	22.8 C (73.0 F)	38 of 100 (Notable)
Graz	Austria	Record daily precipitation	56.7 mm (2.2 in)	37 of 100 (Notable)
Altomunster-Maisbrunn	Germany	Record daily precipitation	43.6 mm (1.7 in)	37 of 100 (Notable)
Brewton 3 SSE	United States	Record high minimum temperature	26.7 C (80.1 F)	37 of 100 (Notable)
St Petersburg	United States	Record high minimum temperature	27.2 C (81.0 F)	37 of 100 (Notable)

Counts by Type and Timescale

1,071 records

Records set or tied on 21 August 2005 by type: Highest daily maximum 227, Lowest daily maximum 99, Highest daily minimum 483, Lowest daily minimum 86, Heaviest daily rainfall 176.

Records on 21 August 2005 by type
Record type	Records
Highest daily maximum	227
Lowest daily maximum	99
Highest daily minimum	483
Lowest daily minimum	86
Heaviest daily rainfall	176
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 August 2005 by timescale: all-time 14, monthly 41, daily 1,016.

How Much Records Were Beaten By

713 broken records

Margins by which the 713 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 77.5. Ties are not counted.

Top 20 by Significance

21 August 2005

Top 20 records on 21 August 2005 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 August 2005	Hobart Muni AP, US	daily rain	99.1 mm (3.9 in)	77.5 mm (3.1 in)	64 years	68 of 100 (Major)
21 August 2005	Atbasar, KZ	daily rain	28.5 mm (1.1 in)	24.4 mm (1.0 in)	68 years	67 of 100 (Major)
21 August 2005	Tasiilaq, GL	daily rain	48.8 mm (1.9 in)	30.4 mm (1.2 in)	80 years	63 of 100 (Major)
21 August 2005	Sayre, US	daily rain	79.8 mm (3.1 in)	54.1 mm (2.1 in)	64 years	63 of 100 (Major)
21 August 2005	Elk City 4 W, US	daily rain	99.6 mm (3.9 in)	51.3 mm (2.0 in)	68 years	59 of 100 (Notable)
21 August 2005	Grenola 1 N, US	daily rain	71.9 mm (2.8 in)	21.6 mm (0.9 in)	103 years	53 of 100 (Notable)
21 August 2005	Hechingen, DE	daily rain	60.5 mm (2.4 in)	20.8 mm (0.8 in)	66 years	52 of 100 (Notable)
21 August 2005	Moravia 1 E, US	daily rain	81.0 mm (3.2 in)	56.1 mm (2.2 in)	35 years	52 of 100 (Notable)
21 August 2005	Baise, CN	daily rain	108.3 mm (4.3 in)	73.4 mm (2.9 in)	22 years	51 of 100 (Notable)
21 August 2005	Fall Rvr Lake, US	daily rain	63.8 mm (2.5 in)	17.6 mm (0.7 in)	103 years	51 of 100 (Notable)
21 August 2005	Longton, US	daily rain	87.6 mm (3.4 in)	59.9 mm (2.4 in)	44 years	51 of 100 (Notable)
21 August 2005	Nakhon Sawan, TH	daily rain	101.6 mm (4.0 in)	51.7 mm (2.0 in)	38 years	50 of 100 (Notable)
21 August 2005	Rio Lagartos, MX	daily rain	66.8 mm (2.6 in)	51.3 mm (2.0 in)	19 years	49 of 100 (Notable)
21 August 2005	Lancaster, US	daily rain	55.1 mm (2.2 in)	34.8 mm (1.4 in)	16 years	48 of 100 (Notable)
21 August 2005	Teloloapan, MX	daily rain	82.8 mm (3.3 in)	50.0 mm (2.0 in)	26 years	47 of 100 (Notable)
21 August 2005	Knin, HR	all-time rain	154.6 mm (6.1 in)	17.9 mm (0.7 in)	29 years	46 of 100 (Notable)
21 August 2005	Errol, US	daily rain	53.8 mm (2.1 in)	25.9 mm (1.0 in)	43 years	46 of 100 (Notable)
21 August 2005	Newport 1 NW, US	daily high min	23.3 C (73.9 F)	1.6 C (2.9 F)	104 years	46 of 100 (Notable)
21 August 2005	New Iberia AP - Acadiana Rgnl, US	daily high min	27.2 C (81.0 F)	1.6 C (2.9 F)	84 years	45 of 100 (Notable)
21 August 2005	Franklinville, US	daily high min	20.0 C (68.0 F)	2.2 C (4.0 F)	104 years	45 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 2005

Records set or tied on this calendar date in each year from 1800 to 2005. 2005 had 1,071 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	1,289

Download the Data

Data for records on 2005-08-21: 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 10	636
10 to 20	40
20 to 30	17
30 to 40	9
40 to 50	2
50 to 60	7
60 to 70	0
70 to 80	2