Weather Records on 21 August 2007

1,829 weather records were set or tied worldwide on 21 August 2007. Highest significance: Upper Sandusky, US.

Key Facts for 21 August 2007

On 21 August 2007, 1,829 weather records were set or tied at long-record stations worldwide.
831 were record highs and 311 were record lows, counting maximum and minimum temperature.
By timescale, 27 were all-time records, 148 monthly and 1,654 daily.
Upper Sandusky set an all-time record daily precipitation of 237.5 mm (9.4 in) on 21 August 2007.
Across 165 earlier years (1800 to 2026) the same calendar date averaged 442 records.

Record Map

1,829 stations

1,829 station records on 21 August 2007 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 August 2007: highest significance records shown on the map
Station	Country	Type	Value	Significance
Upper Sandusky	United States	Record daily precipitation	237.5 mm (9.4 in)	91 of 100 (Exceptional)
Mansfield 5 W	United States	Record daily precipitation	131.8 mm (5.2 in)	82 of 100 (Exceptional)
Ebor (Wongwibinda)	Australia	Record daily precipitation	72.6 mm (2.9 in)	80 of 100 (Exceptional)
Bellbrook (East Street)	Australia	Record daily precipitation	179.0 mm (7.0 in)	80 of 100 (Exceptional)
Kempsey (Wide Street)	Australia	Record daily precipitation	129.4 mm (5.1 in)	80 of 100 (Exceptional)
Wauchope (Avondale Street)	Australia	Record daily precipitation	111.0 mm (4.4 in)	80 of 100 (Exceptional)
Wingham (Lanark Close)	Australia	Record daily precipitation	132.0 mm (5.2 in)	80 of 100 (Exceptional)
Jeogla Station	Australia	Record daily precipitation	92.0 mm (3.6 in)	78 of 100 (Major)
Maclean (McLachlan Street)	Australia	Record daily precipitation	148.0 mm (5.8 in)	78 of 100 (Major)
Ulmarra (Newsagency)	Australia	Record daily precipitation	126.6 mm (5.0 in)	78 of 100 (Major)
Gloucester Post Office	Australia	Record daily precipitation	74.6 mm (2.9 in)	78 of 100 (Major)
Long Flat Post Office	Australia	Record daily precipitation	114.6 mm (4.5 in)	78 of 100 (Major)
Kookabookra	Australia	Record daily precipitation	52.2 mm (2.1 in)	77 of 100 (Major)
Bowraville Recreation Club	Australia	Record daily precipitation	271.0 mm (10.7 in)	77 of 100 (Major)
Kendall Post Office	Australia	Record daily precipitation	114.4 mm (4.5 in)	77 of 100 (Major)
Lower Bucca	Australia	Record daily precipitation	148.6 mm (5.9 in)	75 of 100 (Major)
Comboyne Post Office	Australia	Record daily precipitation	168.0 mm (6.6 in)	75 of 100 (Major)
Berne Wwtp	United States	Record daily precipitation	76.2 mm (3.0 in)	75 of 100 (Major)
Hillgrove (Hillview)	Australia	Record daily precipitation	67.0 mm (2.6 in)	74 of 100 (Major)
Telegraph Point (Farrawells Ro	Australia	Record daily precipitation	102.4 mm (4.0 in)	74 of 100 (Major)
Bucyrus	United States	Record daily precipitation	220.5 mm (8.7 in)	74 of 100 (Major)
Krambach Post Office	Australia	Record daily precipitation	106.2 mm (4.2 in)	73 of 100 (Major)
Harrington (Oxley Anchorage Ca	Australia	Record daily precipitation	108.8 mm (4.3 in)	73 of 100 (Major)
Glen Elgin (Glenbrook)	Australia	Record daily precipitation	70.0 mm (2.8 in)	72 of 100 (Major)
Nymboida (Armidale Road)	Australia	Record daily precipitation	124.0 mm (4.9 in)	72 of 100 (Major)
Pandora	United States	Record daily precipitation	157.2 mm (6.2 in)	72 of 100 (Major)
Toorooka (Moparrabah)	Australia	Record daily precipitation	151.4 mm (6.0 in)	71 of 100 (Major)
Nambucca Heads Bowling Club	Australia	Record daily precipitation	161.4 mm (6.4 in)	70 of 100 (Major)
Van Wert 1 S	United States	Record daily precipitation	161.3 mm (6.4 in)	70 of 100 (Major)
Bad Lippspringe	Germany	Record daily precipitation	66.7 mm (2.6 in)	69 of 100 (Major)
Wahlsburg-Lippoldsberg	Germany	Record daily precipitation	57.4 mm (2.3 in)	69 of 100 (Major)
Sabancuy	Mexico	Record daily precipitation	275.8 mm (10.9 in)	69 of 100 (Major)
Tiffin	United States	Record daily precipitation	91.9 mm (3.6 in)	68 of 100 (Major)
Uralla (Mihi)	Australia	Record daily precipitation	50.8 mm (2.0 in)	67 of 100 (Major)
Coramba (Glenfiddich)	Australia	Record daily precipitation	252.4 mm (9.9 in)	67 of 100 (Major)
Lorne (Lorne Road)	Australia	Record daily precipitation	125.0 mm (4.9 in)	67 of 100 (Major)
Grover Hill	United States	Record daily precipitation	171.7 mm (6.8 in)	67 of 100 (Major)
Tia (Highrent)	Australia	Record daily precipitation	70.8 mm (2.8 in)	66 of 100 (Major)
Yarrowitch (Maretto)	Australia	Record daily precipitation	84.8 mm (3.3 in)	65 of 100 (Major)
Eungai Creek (Southbank Road)	Australia	Record daily precipitation	229.2 mm (9.0 in)	65 of 100 (Major)
Thumb Creek (Figtree)	Australia	Record daily precipitation	160.4 mm (6.3 in)	65 of 100 (Major)
Yarras (Mount Seaview)	Australia	Record daily precipitation	168.6 mm (6.6 in)	65 of 100 (Major)
San Isidro	Mexico	Record daily precipitation	159.8 mm (6.3 in)	65 of 100 (Major)
Marion 2 N	United States	Record daily precipitation	69.1 mm (2.7 in)	65 of 100 (Major)
Galion Wtr Wks	United States	Record daily precipitation	155.2 mm (6.1 in)	65 of 100 (Major)
Pinkett (Benbookra)	Australia	Record daily precipitation	65.0 mm (2.6 in)	64 of 100 (Major)
Glenreagh Post Office	Australia	Record daily precipitation	195.0 mm (7.7 in)	64 of 100 (Major)
Norwalk Wwtp	United States	Record daily precipitation	105.2 mm (4.1 in)	64 of 100 (Major)
Uralla (Dumaresq St)	Australia	Record daily precipitation	54.0 mm (2.1 in)	63 of 100 (Major)
Misantla	Mexico	Record daily precipitation	96.8 mm (3.8 in)	63 of 100 (Major)
Hassleby	Sweden	Record daily precipitation	38.5 mm (1.5 in)	63 of 100 (Major)
Krambach (Tipperary)	Australia	Record daily precipitation	124.0 mm (4.9 in)	62 of 100 (Major)
Escarcega (Smn)	Mexico	Record daily precipitation	162.8 mm (6.4 in)	62 of 100 (Major)
Huichapan	Mexico	Record daily precipitation	70.9 mm (2.8 in)	62 of 100 (Major)
Findlay Wpcc	United States	Record daily precipitation	121.4 mm (4.8 in)	62 of 100 (Major)
Glen Innes Post Office	Australia	Record daily precipitation	44.4 mm (1.7 in)	61 of 100 (Major)
Glen Innes (Mt Mitchell Forest	Australia	Record daily precipitation	56.5 mm (2.2 in)	61 of 100 (Major)
Copmanhurst Post Office	Australia	Record daily precipitation	127.0 mm (5.0 in)	61 of 100 (Major)
Kangaroo Creek (Hayfield)	Australia	Record daily precipitation	102.0 mm (4.0 in)	61 of 100 (Major)
Crescent Head	Australia	Record daily precipitation	86.0 mm (3.4 in)	61 of 100 (Major)

Counts by Type and Timescale

1,829 records

Records set or tied on 21 August 2007 by type: Highest daily maximum 338, Lowest daily maximum 227, Highest daily minimum 493, Lowest daily minimum 84, Heaviest daily rainfall 687.

Records on 21 August 2007 by type
Record type	Records
Highest daily maximum	338
Lowest daily maximum	227
Highest daily minimum	493
Lowest daily minimum	84
Heaviest daily rainfall	687
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 August 2007 by timescale: all-time 27, monthly 148, daily 1,654.

How Much Records Were Beaten By

1,440 broken records

Margins by which the 1,440 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 155.9. Ties are not counted.

Top 20 by Significance

21 August 2007

Top 20 records on 21 August 2007 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 August 2007	Upper Sandusky, US	all-time rain	237.5 mm (9.4 in)	98.1 mm (3.9 in)	70 years	91 of 100 (Exceptional)
21 August 2007	Mansfield 5 W, US	all-time rain	131.8 mm (5.2 in)	27.7 mm (1.1 in)	108 years	82 of 100 (Exceptional)
21 August 2007	Ebor (Wongwibinda), AU	daily rain	72.6 mm (2.9 in)	52.3 mm (2.1 in)	104 years	80 of 100 (Exceptional)
21 August 2007	Bellbrook (East Street), AU	daily rain	179.0 mm (7.0 in)	154.1 mm (6.1 in)	114 years	80 of 100 (Exceptional)
21 August 2007	Kempsey (Wide Street), AU	daily rain	129.4 mm (5.1 in)	109.1 mm (4.3 in)	114 years	80 of 100 (Exceptional)
21 August 2007	Wauchope (Avondale Street), AU	daily rain	111.0 mm (4.4 in)	78.7 mm (3.1 in)	114 years	80 of 100 (Exceptional)
21 August 2007	Wingham (Lanark Close), AU	daily rain	132.0 mm (5.2 in)	73.6 mm (2.9 in)	107 years	80 of 100 (Exceptional)
21 August 2007	Jeogla Station, AU	daily rain	92.0 mm (3.6 in)	77.8 mm (3.1 in)	96 years	78 of 100 (Major)
21 August 2007	Maclean (McLachlan Street), AU	daily rain	148.0 mm (5.8 in)	120.1 mm (4.7 in)	96 years	78 of 100 (Major)
21 August 2007	Ulmarra (Newsagency), AU	daily rain	126.6 mm (5.0 in)	108.1 mm (4.3 in)	96 years	78 of 100 (Major)
21 August 2007	Gloucester Post Office, AU	daily rain	74.6 mm (2.9 in)	46.9 mm (1.8 in)	107 years	78 of 100 (Major)
21 August 2007	Long Flat Post Office, AU	daily rain	114.6 mm (4.5 in)	101.9 mm (4.0 in)	96 years	78 of 100 (Major)
21 August 2007	Kookabookra, AU	daily rain	52.2 mm (2.1 in)	29.3 mm (1.2 in)	104 years	77 of 100 (Major)
21 August 2007	Bowraville Recreation Club, AU	monthly rain	271.0 mm (10.7 in)	89.4 mm (3.5 in)	57 years	77 of 100 (Major)
21 August 2007	Kendall Post Office, AU	daily rain	114.4 mm (4.5 in)	91.0 mm (3.6 in)	92 years	77 of 100 (Major)
21 August 2007	Lower Bucca, AU	daily rain	148.6 mm (5.9 in)	110.0 mm (4.3 in)	84 years	75 of 100 (Major)
21 August 2007	Comboyne Post Office, AU	daily rain	168.0 mm (6.6 in)	137.5 mm (5.4 in)	84 years	75 of 100 (Major)
21 August 2007	Berne Wwtp, US	daily rain	76.2 mm (3.0 in)	47.0 mm (1.9 in)	92 years	75 of 100 (Major)
21 August 2007	Hillgrove (Hillview), AU	daily rain	67.0 mm (2.6 in)	51.8 mm (2.0 in)	81 years	74 of 100 (Major)
21 August 2007	Telegraph Point (Farrawells Ro, AU	daily rain	102.4 mm (4.0 in)	77.0 mm (3.0 in)	96 years	74 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

1800 to 2007

Records set or tied on this calendar date in each year from 1800 to 2007. 2007 had 1,829 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 2007-08-21: 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 2026-10-14 (14 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 20	1,207
20 to 40	132
40 to 60	46
60 to 80	28
80 to 100	10
100 to 120	11
120 to 140	3
140 to 160	3