Weather Records on 9 August 2010

1,393 weather records were set or tied worldwide on 9 August 2010. Highest significance: Wooroonook, AU.

Key Facts for 9 August 2010

On 9 August 2010, 1,393 weather records were set or tied at long-record stations worldwide.
954 were record highs and 182 were record lows, counting maximum and minimum temperature.
By timescale, 20 were all-time records, 59 monthly and 1,314 daily.
Wooroonook set a daily record precipitation of 34.0 mm (1.3 in) on 9 August 2010.
Across 156 earlier years (1798 to 2026) the same calendar date averaged 468 records.

Record Map

1,393 stations

1,393 station records on 9 August 2010 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 August 2010: highest significance records shown on the map
Station	Country	Type	Value	Significance
Wooroonook	Australia	Record daily precipitation	34.0 mm (1.3 in)	69 of 100 (Major)
Woomera (Oakden Hills)	Australia	Record daily precipitation	26.0 mm (1.0 in)	68 of 100 (Major)
Platteville	United States	Record daily precipitation	98.3 mm (3.9 in)	62 of 100 (Major)
Wausaukee	United States	Record daily precipitation	48.8 mm (1.9 in)	61 of 100 (Major)
Boone	United States	Record daily precipitation	97.8 mm (3.9 in)	60 of 100 (Major)
Genoa Dam 8	United States	Record daily precipitation	111.8 mm (4.4 in)	60 of 100 (Major)
Uppsala_Aut	Sweden	Record daily precipitation	33.8 mm (1.3 in)	58 of 100 (Notable)
Huskvarna	Sweden	Record daily precipitation	37.7 mm (1.5 in)	55 of 100 (Notable)
Ames 8 WSW	United States	Record daily precipitation	126.5 mm (5.0 in)	54 of 100 (Notable)
Carroll	United States	Record daily precipitation	56.9 mm (2.2 in)	51 of 100 (Notable)
Thornleigh	Australia	Record daily precipitation	25.0 mm (1.0 in)	50 of 100 (Notable)
Poljarnoe	Russia	Record daily precipitation	37.7 mm (1.5 in)	49 of 100 (Notable)
Galena	United States	Record daily precipitation	74.7 mm (2.9 in)	49 of 100 (Notable)
Ankeny	United States	Record daily precipitation	73.7 mm (2.9 in)	48 of 100 (Notable)
Feodosiia	Ukraine	Record high minimum temperature	26.3 C (79.3 F)	47 of 100 (Notable)
Bloomfield	United States	Record daily precipitation	52.1 mm (2.1 in)	47 of 100 (Notable)
Osage	United States	Record daily precipitation	45.7 mm (1.8 in)	47 of 100 (Notable)
Calera	Mexico	Record daily precipitation	51.3 mm (2.0 in)	46 of 100 (Notable)
Waynesboro 2 W	United States	Record high minimum temperature	25.6 C (78.1 F)	45 of 100 (Notable)
Pineville	United States	Record high minimum temperature	24.4 C (75.9 F)	45 of 100 (Notable)
Smolensk	Russia	Record high maximum temperature	36.7 C (98.1 F)	44 of 100 (Notable)
Bellevue L/D 12	United States	Record daily precipitation	58.2 mm (2.3 in)	44 of 100 (Notable)
Salla Varriotunturi	Finland	Record daily precipitation	41.7 mm (1.6 in)	43 of 100 (Notable)
Poretskoye	Russia	Record high maximum temperature	36.2 C (97.2 F)	43 of 100 (Notable)
Moore Haven Lock 1	United States	Record daily precipitation	63.5 mm (2.5 in)	43 of 100 (Notable)
Clearwater	United States	Record low maximum temperature	15.6 C (60.1 F)	43 of 100 (Notable)
Vjazma	Russia	Record high maximum temperature	37.2 C (99.0 F)	42 of 100 (Notable)
Kazan	Russia	Record high minimum temperature	23.4 C (74.1 F)	42 of 100 (Notable)
Bogoroditskoye-Fenino	Russia	Record high maximum temperature	38.5 C (101.3 F)	42 of 100 (Notable)
Ai-Petri	Ukraine	Record high minimum temperature	23.8 C (74.8 F)	42 of 100 (Notable)
Collegeville St John's	United States	Record high maximum temperature	34.4 C (93.9 F)	42 of 100 (Notable)
Booneville	United States	Record high minimum temperature	24.4 C (75.9 F)	42 of 100 (Notable)
Greeley	United States	Record high minimum temperature	23.3 C (73.9 F)	42 of 100 (Notable)
Prentice #2	United States	Record daily precipitation	57.2 mm (2.3 in)	42 of 100 (Notable)
Imperial Muni AP	United States	Record daily precipitation	39.1 mm (1.5 in)	42 of 100 (Notable)
Velikie Luki	Russia	Record high minimum temperature	18.3 C (64.9 F)	41 of 100 (Notable)
Roslavl	Russia	Record high maximum temperature	36.3 C (97.3 F)	41 of 100 (Notable)
Kirov	Russia	Record high maximum temperature	35.2 C (95.4 F)	41 of 100 (Notable)
Kirov	Russia	Record high minimum temperature	20.7 C (69.3 F)	41 of 100 (Notable)
Oktjabrskij-Gorodok	Russia	Record high maximum temperature	36.5 C (97.7 F)	41 of 100 (Notable)
Newton	United States	Record daily precipitation	72.9 mm (2.9 in)	41 of 100 (Notable)
Mason City	United States	Record high minimum temperature	20.6 C (69.1 F)	41 of 100 (Notable)
Jerecuaro	Mexico	Record high minimum temperature	17.2 C (63.0 F)	40 of 100 (Notable)
Ixtlan del Rio	Mexico	Record daily precipitation	125.0 mm (4.9 in)	40 of 100 (Notable)
Petrozawodsk	Russia	Record high maximum temperature	32.4 C (90.3 F)	40 of 100 (Notable)
Velikie Luki	Russia	Record high maximum temperature	31.8 C (89.2 F)	40 of 100 (Notable)
Brjansk	Russia	Record high maximum temperature	37.7 C (99.9 F)	40 of 100 (Notable)
Niznij Novgorod	Russia	Record high minimum temperature	22.1 C (71.8 F)	40 of 100 (Notable)
Perry	United States	Record daily precipitation	57.2 mm (2.3 in)	40 of 100 (Notable)
Progreso	Mexico	Record low maximum temperature	15.6 C (60.1 F)	39 of 100 (Notable)
Salekhard	Russia	Record low minimum temperature	-0.3 C (31.5 F)	39 of 100 (Notable)
Syktyvkar	Russia	Record high maximum temperature	30.6 C (87.1 F)	39 of 100 (Notable)
Akroken	Sweden	Record daily precipitation	33.2 mm (1.3 in)	39 of 100 (Notable)
Solberg	Sweden	Record daily precipitation	41.2 mm (1.6 in)	39 of 100 (Notable)
Sierraville Rs	United States	Record low minimum temperature	-3.3 C (26.1 F)	39 of 100 (Notable)
Yosemite Park HQ	United States	Record low maximum temperature	23.3 C (73.9 F)	39 of 100 (Notable)
Ames 5 SE	United States	Record daily precipitation	127.8 mm (5.0 in)	39 of 100 (Notable)
Dubuque L&D 11	United States	Record daily precipitation	50.0 mm (2.0 in)	39 of 100 (Notable)
Ixtlahuacan (Smn)	Mexico	Record high maximum temperature	40.6 C (105.1 F)	38 of 100 (Notable)
Magdalena	Mexico	Record daily precipitation	49.8 mm (2.0 in)	38 of 100 (Notable)

Counts by Type and Timescale

1,393 records

Records set or tied on 9 August 2010 by type: Highest daily maximum 323, Lowest daily maximum 98, Highest daily minimum 631, Lowest daily minimum 84, Heaviest daily rainfall 257.

Records on 9 August 2010 by type
Record type	Records
Highest daily maximum	323
Lowest daily maximum	98
Highest daily minimum	631
Lowest daily minimum	84
Heaviest daily rainfall	257
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 9 August 2010 by timescale: all-time 20, monthly 59, daily 1,314.

How Much Records Were Beaten By

1,000 broken records

Margins by which the 1,000 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 87.4. Ties are not counted.

Top 20 by Significance

9 August 2010

Top 20 records on 9 August 2010 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 August 2010	Wooroonook, AU	daily rain	34.0 mm (1.3 in)	15.2 mm (0.6 in)	100 years	69 of 100 (Major)
9 August 2010	Woomera (Oakden Hills), AU	daily rain	26.0 mm (1.0 in)	22.7 mm (0.9 in)	71 years	68 of 100 (Major)
9 August 2010	Platteville, US	daily rain	98.3 mm (3.9 in)	56.9 mm (2.2 in)	64 years	62 of 100 (Major)
9 August 2010	Wausaukee, US	daily rain	48.8 mm (1.9 in)	23.7 mm (0.9 in)	109 years	61 of 100 (Major)
9 August 2010	Boone, US	daily rain	97.8 mm (3.9 in)	66.6 mm (2.6 in)	36 years	60 of 100 (Major)
9 August 2010	Genoa Dam 8, US	daily rain	111.8 mm (4.4 in)	81.3 mm (3.2 in)	44 years	60 of 100 (Major)
9 August 2010	Uppsala_Aut, SE	daily rain	33.8 mm (1.3 in)	12.9 mm (0.5 in)	144 years	58 of 100 (Notable)
9 August 2010	Huskvarna, SE	daily rain	37.7 mm (1.5 in)	16.5 mm (0.6 in)	64 years	55 of 100 (Notable)
9 August 2010	Ames 8 WSW, US	daily rain	126.5 mm (5.0 in)	87.4 mm (3.4 in)	36 years	54 of 100 (Notable)
9 August 2010	Carroll, US	daily rain	56.9 mm (2.2 in)	16.3 mm (0.6 in)	105 years	51 of 100 (Notable)
9 August 2010	Thornleigh, AU	daily rain	25.0 mm (1.0 in)	22.2 mm (0.9 in)	36 years	50 of 100 (Notable)
9 August 2010	Poljarnoe, RU	daily rain	37.7 mm (1.5 in)	19.9 mm (0.8 in)	9 years	49 of 100 (Notable)
9 August 2010	Galena, US	daily rain	74.7 mm (2.9 in)	46.5 mm (1.8 in)	44 years	49 of 100 (Notable)
9 August 2010	Ankeny, US	daily rain	73.7 mm (2.9 in)	50.1 mm (2.0 in)	32 years	48 of 100 (Notable)
9 August 2010	Feodosiia, UA	daily high min	26.3 C (79.3 F)	2.0 C (3.6 F)	108 years	47 of 100 (Notable)
9 August 2010	Bloomfield, US	daily rain	52.1 mm (2.1 in)	20.1 mm (0.8 in)	88 years	47 of 100 (Notable)
9 August 2010	Osage, US	daily rain	45.7 mm (1.8 in)	11.9 mm (0.5 in)	105 years	47 of 100 (Notable)
9 August 2010	Calera, MX	daily rain	51.3 mm (2.0 in)	30.7 mm (1.2 in)	44 years	46 of 100 (Notable)
9 August 2010	Waynesboro 2 W, US	daily high min	25.6 C (78.1 F)	1.2 C (2.2 F)	108 years	45 of 100 (Notable)
9 August 2010	Pineville, US	all-time high min	24.4 C (75.9 F)	1.6 C (2.9 F)	34 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

1798 to 2010

Records set or tied on this calendar date in each year from 1798 to 2010. 2010 had 1,393 records.

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

Records on 08-09 in each year
Year	Records
1798	2
1800	1
1838	1
1845	3
1856	1
1859	3
1861	1
1863	2
1868	1
1870	1
1871	1
1873	1
1875	1
1878	1
1881	3
1884	2
1886	1
1887	1
1888	1
1889	1
1890	1
1891	4
1892	4
1893	3
1894	3
1895	1
1896	3
1897	7
1898	12
1899	4
1900	8
1901	3
1902	3
1903	6
1904	9
1905	5
1906	15
1907	9
1908	9
1909	51
1910	16
1911	44
1912	47
1913	76
1914	21
1915	61
1916	37
1917	46
1918	210
1919	49
1920	289
1921	36
1922	70
1923	73
1924	143
1925	307
1926	142
1927	391
1928	220
1929	127
1930	570
1931	399
1932	194
1933	250
1934	654
1935	587
1936	519
1937	351
1938	379
1939	480
1940	455
1941	372
1942	527
1943	366
1944	647
1945	365
1946	307
1947	544
1948	440
1949	715
1950	407
1951	405
1952	317
1953	363
1954	377
1955	433
1956	278
1957	347
1958	417
1959	453
1960	459
1961	347
1962	636
1963	500
1964	755
1965	632
1966	568
1967	457
1968	1,037
1969	527
1970	751
1971	543
1972	1,089
1973	547
1974	660
1975	790
1976	883
1977	453
1978	784
1979	630
1980	945
1981	941
1982	935
1983	839
1984	683
1985	714
1986	509
1987	927
1988	625
1989	2,082
1990	799
1991	988
1992	1,699
1993	702
1994	1,097
1995	1,417
1996	864
1997	1,446
1998	969
1999	1,370
2000	1,237
2001	1,485
2002	1,167
2003	1,344
2004	941
2005	1,001
2006	828
2007	1,687
2008	667
2009	1,028
2010	1,393
2011	1,177
2012	843
2013	761
2014	531
2015	595
2016	634
2017	773
2018	972
2019	717
2020	643
2021	523
2022	793
2023	820
2024	952
2025	799
2026	1,019

Download the Data

Data for records on 2010-08-09: 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 20	963
20 to 40	28
40 to 60	6
60 to 80	1
80 to 100	2