Weather Records on 10 August 2009

869 weather records were set or tied worldwide on 10 August 2009. Highest significance: Media Luna, MX.

Key Facts for 10 August 2009

On 10 August 2009, 869 weather records were set or tied at long-record stations worldwide.
408 were record highs and 264 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 30 monthly and 834 daily.
Media Luna set an all-time record daily precipitation of 129.8 mm (5.1 in) on 10 August 2009.
Across 160 earlier years (1814 to 2026) the same calendar date averaged 466 records.

Record Map

869 stations

869 station records on 10 August 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 10 August 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Media Luna	Mexico	Record daily precipitation	129.8 mm (5.1 in)	78 of 100 (Major)
Kajlastuj	Russia	Record daily precipitation	258.3 mm (10.2 in)	71 of 100 (Major)
Orje	Norway	Record daily precipitation	73.1 mm (2.9 in)	63 of 100 (Major)
Cincinnatus	United States	Record daily precipitation	88.9 mm (3.5 in)	62 of 100 (Major)
Tokushima	Japan	Record daily precipitation	270.0 mm (10.6 in)	58 of 100 (Notable)
Liberty 1 NE	United States	Record daily precipitation	89.7 mm (3.5 in)	55 of 100 (Notable)
Rovaniemi Juotasniemi	Finland	Record daily precipitation	35.0 mm (1.4 in)	54 of 100 (Notable)
Skaneateles	United States	Record daily precipitation	93.5 mm (3.7 in)	53 of 100 (Notable)
Stromsfoss Sluse	Norway	Record daily precipitation	60.4 mm (2.4 in)	52 of 100 (Notable)
Wien	Austria	Record daily precipitation	27.0 mm (1.1 in)	51 of 100 (Notable)
Franklinville	United States	Record daily precipitation	72.1 mm (2.8 in)	51 of 100 (Notable)
Dividalen	Norway	Record daily precipitation	29.8 mm (1.2 in)	50 of 100 (Notable)
Onahama	Japan	Record daily precipitation	171.2 mm (6.7 in)	49 of 100 (Notable)
Brodhead Wwtp	United States	Record daily precipitation	61.5 mm (2.4 in)	49 of 100 (Notable)
Meeker	United States	Record low minimum temperature	0.6 C (33.1 F)	48 of 100 (Notable)
Portageville 1N	United States	Record daily precipitation	41.1 mm (1.6 in)	48 of 100 (Notable)
Presa la Calera	Mexico	Record low minimum temperature	15.0 C (59.0 F)	47 of 100 (Notable)
Marshall	United States	Record daily precipitation	43.9 mm (1.7 in)	47 of 100 (Notable)
Vladikavkaz	Russia	Record low maximum temperature	15.4 C (59.7 F)	46 of 100 (Notable)
Chama	United States	Record low minimum temperature	0.0 C (32.0 F)	44 of 100 (Notable)
Franklin	United States	Record high minimum temperature	22.8 C (73.0 F)	44 of 100 (Notable)
Magdalena	Mexico	Record high minimum temperature	21.7 C (71.1 F)	43 of 100 (Notable)
Basel Binningen	Switzerland	Record daily precipitation	37.4 mm (1.5 in)	43 of 100 (Notable)
Neukirchen-Hauptschwenda	Germany	Record daily precipitation	57.9 mm (2.3 in)	42 of 100 (Notable)
Albia 3 NNE	United States	Record daily precipitation	39.4 mm (1.6 in)	42 of 100 (Notable)
Caon Fernandez	Mexico	Record daily precipitation	30.0 mm (1.2 in)	41 of 100 (Notable)
Ponce 4 E	Puerto Rico [United States]	Record high maximum temperature	36.1 C (97.0 F)	41 of 100 (Notable)
Nakhon Phanom	Thailand	Record daily precipitation	190.0 mm (7.5 in)	41 of 100 (Notable)
Logansport Cicott St	United States	Record high minimum temperature	22.8 C (73.0 F)	41 of 100 (Notable)
Grayling	United States	Record high minimum temperature	21.7 C (71.1 F)	41 of 100 (Notable)
Espanola	United States	Record low minimum temperature	6.7 C (44.1 F)	41 of 100 (Notable)
Sodus 1W	United States	Record daily precipitation	105.4 mm (4.1 in)	41 of 100 (Notable)
San Marcos	United States	Record high minimum temperature	25.6 C (78.1 F)	41 of 100 (Notable)
Shirakawa	Japan	Record daily precipitation	126.0 mm (5.0 in)	40 of 100 (Notable)
German Town	Australia	Record daily precipitation	35.6 mm (1.4 in)	39 of 100 (Notable)
Maizuru Reg Met HQ	Japan	Record daily precipitation	56.4 mm (2.2 in)	39 of 100 (Notable)
Vasteras-Hasslo	Sweden	Record high minimum temperature	17.1 C (62.8 F)	39 of 100 (Notable)
Keams Canyon	United States	Record low minimum temperature	4.4 C (39.9 F)	39 of 100 (Notable)
Holland Wtp	United States	Record daily precipitation	51.3 mm (2.0 in)	39 of 100 (Notable)
Concordia	United States	Record daily precipitation	52.6 mm (2.1 in)	39 of 100 (Notable)
San Miguel Ejutla	Mexico	Record high minimum temperature	18.9 C (66.0 F)	38 of 100 (Notable)
San Ildelfonso Villa Alta	Mexico	Record low minimum temperature	10.6 C (51.1 F)	38 of 100 (Notable)
Peon Blanco	Mexico	Record high minimum temperature	18.9 C (66.0 F)	38 of 100 (Notable)
Del Norte 3ENE	United States	Record low minimum temperature	2.2 C (36.0 F)	38 of 100 (Notable)
Sweet Springs	United States	Record daily precipitation	64.0 mm (2.5 in)	38 of 100 (Notable)
La Union	Mexico	Record high minimum temperature	25.6 C (78.1 F)	37 of 100 (Notable)
San Isidro	Mexico	Record high maximum temperature	40.0 C (104.0 F)	36 of 100 (Notable)
Monte Vista 2W	United States	Record low minimum temperature	0.0 C (32.0 F)	36 of 100 (Notable)
Chambersburg 1 ESE	United States	Record high minimum temperature	23.3 C (73.9 F)	36 of 100 (Notable)
Monroe Wwtp	United States	Record daily precipitation	64.3 mm (2.5 in)	36 of 100 (Notable)
Zuni	United States	Record low minimum temperature	5.0 C (41.0 F)	36 of 100 (Notable)
Leipzig-Schkeuditz	Germany	Record daily precipitation	30.4 mm (1.2 in)	35 of 100 (Notable)
Los Rodriguez	Mexico	Record daily precipitation	46.0 mm (1.8 in)	35 of 100 (Notable)
Coahuayutla	Mexico	Record low maximum temperature	25.6 C (78.1 F)	35 of 100 (Notable)
Lugansk	Ukraine	Record low maximum temperature	19.4 C (66.9 F)	35 of 100 (Notable)
Osceola	United States	Record daily precipitation	61.5 mm (2.4 in)	35 of 100 (Notable)
Cerro	United States	Record low minimum temperature	2.8 C (37.0 F)	35 of 100 (Notable)
El Vado Dam	United States	Record low minimum temperature	0.6 C (33.1 F)	35 of 100 (Notable)
Devils Twr #2	United States	Record daily precipitation	43.2 mm (1.7 in)	35 of 100 (Notable)
Flagstaff AP	United States	Record low minimum temperature	4.4 C (39.9 F)	35 of 100 (Notable)

Counts by Type and Timescale

869 records

Records set or tied on 10 August 2009 by type: Highest daily maximum 150, Lowest daily maximum 102, Highest daily minimum 258, Lowest daily minimum 162, Heaviest daily rainfall 197.

Records on 10 August 2009 by type
Record type	Records
Highest daily maximum	150
Lowest daily maximum	102
Highest daily minimum	258
Lowest daily minimum	162
Heaviest daily rainfall	197
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 10 August 2009 by timescale: all-time 5, monthly 30, daily 834.

How Much Records Were Beaten By

567 broken records

Margins by which the 567 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 156.2. Ties are not counted.

Top 20 by Significance

10 August 2009

Top 20 records on 10 August 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 August 2009	Media Luna, MX	all-time rain	129.8 mm (5.1 in)	44.7 mm (1.8 in)	54 years	78 of 100 (Major)
10 August 2009	Kajlastuj, RU	all-time rain	258.3 mm (10.2 in)	156.2 mm (6.1 in)	14 years	71 of 100 (Major)
10 August 2009	Orje, NO	all-time rain	73.1 mm (2.9 in)	12.0 mm (0.5 in)	62 years	63 of 100 (Major)
10 August 2009	Cincinnatus, US	daily rain	88.9 mm (3.5 in)	48.0 mm (1.9 in)	47 years	62 of 100 (Major)
10 August 2009	Tokushima, JP	monthly rain	270.0 mm (10.6 in)	92.5 mm (3.6 in)	37 years	58 of 100 (Notable)
10 August 2009	Liberty 1 NE, US	daily rain	89.7 mm (3.5 in)	24.9 mm (1.0 in)	96 years	55 of 100 (Notable)
10 August 2009	Rovaniemi Juotasniemi, FI	daily rain	35.0 mm (1.4 in)	24.0 mm (0.9 in)	43 years	54 of 100 (Notable)
10 August 2009	Skaneateles, US	monthly rain	93.5 mm (3.7 in)	11.7 mm (0.5 in)	79 years	53 of 100 (Notable)
10 August 2009	Stromsfoss Sluse, NO	monthly rain	60.4 mm (2.4 in)	3.2 mm (0.13 in)	94 years	52 of 100 (Notable)
10 August 2009	Wien, AT	daily rain	27.0 mm (1.1 in)	9.2 mm (0.36 in)	106 years	51 of 100 (Notable)
10 August 2009	Franklinville, US	daily rain	72.1 mm (2.8 in)	26.9 mm (1.1 in)	52 years	51 of 100 (Notable)
10 August 2009	Dividalen, NO	daily rain	29.8 mm (1.2 in)	11.2 mm (0.4 in)	64 years	50 of 100 (Notable)
10 August 2009	Onahama, JP	daily rain	171.2 mm (6.7 in)	90.2 mm (3.6 in)	19 years	49 of 100 (Notable)
10 August 2009	Brodhead Wwtp, US	daily rain	61.5 mm (2.4 in)	22.1 mm (0.9 in)	88 years	49 of 100 (Notable)
10 August 2009	Meeker, US	daily low min	0.6 C (33.1 F)	2.7 C (4.9 F)	108 years	48 of 100 (Notable)
10 August 2009	Portageville 1N, US	daily rain	41.1 mm (1.6 in)	8.6 mm (0.34 in)	99 years	48 of 100 (Notable)
10 August 2009	Presa la Calera, MX	daily low min	15.0 C (59.0 F)	5.0 C (9.0 F)	15 years	47 of 100 (Notable)
10 August 2009	Marshall, US	daily rain	43.9 mm (1.7 in)	11.6 mm (0.5 in)	107 years	47 of 100 (Notable)
10 August 2009	Vladikavkaz, RU	daily low max	15.4 C (59.7 F)	4.5 C (8.1 F)	86 years	46 of 100 (Notable)
10 August 2009	Chama, US	daily low min	0.0 C (32.0 F)	3.3 C (5.9 F)	70 years	44 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

1814 to 2009

Records set or tied on this calendar date in each year from 1814 to 2009. 2009 had 869 records.

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

Records on 08-10 in each year
Year	Records
1814	1
1815	1
1838	1
1845	2
1847	1
1849	1
1852	1
1853	1
1857	2
1859	1
1861	2
1862	2
1863	1
1864	1
1869	2
1871	1
1877	1
1879	4
1881	2
1884	2
1885	1
1886	1
1887	1
1888	1
1890	2
1891	6
1892	1
1893	1
1894	5
1895	1
1896	5
1897	7
1898	4
1899	6
1900	6
1901	5
1902	7
1903	8
1904	12
1905	5
1906	16
1907	9
1908	7
1909	33
1910	10
1911	40
1912	39
1913	44
1914	27
1915	26
1916	88
1917	51
1918	43
1919	51
1920	101
1921	66
1922	78
1923	175
1924	245
1925	430
1926	80
1927	294
1928	160
1929	264
1930	299
1931	424
1932	251
1933	305
1934	662
1935	480
1936	487
1937	399
1938	382
1939	593
1940	386
1941	459
1942	420
1943	304
1944	1,006
1945	360
1946	303
1947	766
1948	339
1949	586
1950	324
1951	425
1952	395
1953	431
1954	372
1955	309
1956	522
1957	322
1958	443
1959	528
1960	470
1961	640
1962	761
1963	479
1964	553
1965	700
1966	1,231
1967	766
1968	784
1969	588
1970	702
1971	760
1972	1,175
1973	597
1974	719
1975	664
1976	855
1977	786
1978	495
1979	700
1980	849
1981	857
1982	1,070
1983	915
1984	956
1985	918
1986	535
1987	896
1988	792
1989	1,291
1990	736
1991	819
1992	1,051
1993	774
1994	1,338
1995	1,119
1996	1,027
1997	1,504
1998	1,112
1999	945
2000	990
2001	1,192
2002	1,080
2003	1,556
2004	976
2005	1,225
2006	980
2007	1,476
2008	871
2009	869
2010	1,704
2011	1,247
2012	995
2013	599
2014	516
2015	583
2016	893
2017	636
2018	1,018
2019	754
2020	816
2021	553
2022	687
2023	782
2024	882
2025	659
2026	1,149

Download the Data

Data for records on 2009-08-10: 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	530
20 to 40	27
40 to 60	6
60 to 80	1
80 to 100	2
100 to 120	0
120 to 140	0
140 to 160	1