Weather Records on 19 August 2009

1,039 weather records were set or tied worldwide on 19 August 2009. Highest significance: Duluth, US.

Key Facts for 19 August 2009

On 19 August 2009, 1,039 weather records were set or tied at long-record stations worldwide.
697 were record highs and 159 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 17 monthly and 1,022 daily.
Duluth set a daily record precipitation of 73.4 mm (2.9 in) on 19 August 2009.
Across 168 earlier years (1797 to 2026) the same calendar date averaged 436 records.

Record Map

1,039 stations

1,039 station records on 19 August 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 19 August 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Duluth	United States	Record daily precipitation	73.4 mm (2.9 in)	62 of 100 (Major)
Brookport Dam 52	United States	Record daily precipitation	74.4 mm (2.9 in)	57 of 100 (Notable)
Armagh	United Kingdom	Record daily precipitation	50.0 mm (2.0 in)	56 of 100 (Notable)
Moose Lake 1 SSE	United States	Record daily precipitation	86.4 mm (3.4 in)	56 of 100 (Notable)
Foxboro	United States	Record daily precipitation	98.0 mm (3.9 in)	55 of 100 (Notable)
Mt Vernon	United States	Record daily precipitation	97.3 mm (3.8 in)	54 of 100 (Notable)
Belgaum/Sambra	India	Record daily precipitation	65.0 mm (2.6 in)	53 of 100 (Notable)
Uliastai	China	Record daily precipitation	52.1 mm (2.1 in)	51 of 100 (Notable)
Manuel Avila Camacho	Mexico	Record daily precipitation	75.9 mm (3.0 in)	51 of 100 (Notable)
Haleakala Rs 338	United States	Record daily precipitation	76.2 mm (3.0 in)	51 of 100 (Notable)
Huaquechula	Mexico	Record daily precipitation	56.9 mm (2.2 in)	48 of 100 (Notable)
Chanute Martin Johnson AP	United States	Record daily precipitation	64.3 mm (2.5 in)	47 of 100 (Notable)
Glenvar	Australia	Record daily precipitation	31.0 mm (1.2 in)	44 of 100 (Notable)
Cinco Seores	Mexico	Record daily precipitation	76.5 mm (3.0 in)	44 of 100 (Notable)
Superior	United States	Record daily precipitation	60.2 mm (2.4 in)	44 of 100 (Notable)
Castlewood	United States	Record daily precipitation	51.6 mm (2.0 in)	43 of 100 (Notable)
Ashland	United States	Record high minimum temperature	24.4 C (75.9 F)	43 of 100 (Notable)
Hagerstown 1E	United States	Record high minimum temperature	22.8 C (73.0 F)	42 of 100 (Notable)
Mt Pleasant	United States	Record daily precipitation	47.5 mm (1.9 in)	42 of 100 (Notable)
Presa la Calera	Mexico	Record low minimum temperature	16.7 C (62.1 F)	41 of 100 (Notable)
Magdalena	Mexico	Record high minimum temperature	21.7 C (71.1 F)	41 of 100 (Notable)
Mancos 1SW	United States	Record low minimum temperature	3.9 C (39.0 F)	41 of 100 (Notable)
Millinocket	United States	Record high minimum temperature	20.6 C (69.1 F)	41 of 100 (Notable)
Angelica	United States	Record daily precipitation	38.4 mm (1.5 in)	41 of 100 (Notable)
Centralia	United States	Record high maximum temperature	34.4 C (93.9 F)	41 of 100 (Notable)
Gardiner	United States	Record high minimum temperature	20.0 C (68.0 F)	40 of 100 (Notable)
Milan 1NW	United States	Record daily precipitation	53.1 mm (2.1 in)	40 of 100 (Notable)
Okeene	United States	Record daily precipitation	46.5 mm (1.8 in)	40 of 100 (Notable)
Susupuato de Guerrero	Mexico	Record daily precipitation	55.9 mm (2.2 in)	39 of 100 (Notable)
Georgetown	United States	Record low minimum temperature	-0.6 C (30.9 F)	39 of 100 (Notable)
Storrs	United States	Record high minimum temperature	21.7 C (71.1 F)	39 of 100 (Notable)
Malden Muni AP	United States	Record daily precipitation	46.2 mm (1.8 in)	39 of 100 (Notable)
Huanusco	Mexico	Record daily precipitation	55.4 mm (2.2 in)	38 of 100 (Notable)
Eskdalemuir	United Kingdom	Record daily precipitation	78.0 mm (3.1 in)	38 of 100 (Notable)
Ronaldsway	United Kingdom	Record daily precipitation	32.8 mm (1.3 in)	38 of 100 (Notable)
Daytona Beach Intl AP	United States	Record high minimum temperature	25.6 C (78.1 F)	38 of 100 (Notable)
McCracken	United States	Record daily precipitation	27.9 mm (1.1 in)	37 of 100 (Notable)
Mud Mtn Dam	United States	Record high minimum temperature	16.7 C (62.1 F)	37 of 100 (Notable)
Hillsborough	United Kingdom	Record daily precipitation	33.2 mm (1.3 in)	36 of 100 (Notable)
Carbondale Sewage Plt	United States	Record daily precipitation	43.7 mm (1.7 in)	36 of 100 (Notable)
Fruitland	United States	Record low minimum temperature	5.6 C (42.1 F)	36 of 100 (Notable)
Anacortes	United States	Record high minimum temperature	16.7 C (62.1 F)	36 of 100 (Notable)
Ulupalakua Rch 250	United States	Record daily precipitation	36.6 mm (1.4 in)	36 of 100 (Notable)
Roseburg Rgnl AP	United States	Record high maximum temperature	40.6 C (105.1 F)	36 of 100 (Notable)
Las Animas	Mexico	Record low maximum temperature	20.0 C (68.0 F)	35 of 100 (Notable)
Pinkham Notch	United States	Record high maximum temperature	31.1 C (88.0 F)	35 of 100 (Notable)
Chama	United States	Record low minimum temperature	0.6 C (33.1 F)	35 of 100 (Notable)
Daingerfield 9 S	United States	Record daily precipitation	46.2 mm (1.8 in)	35 of 100 (Notable)
Anacortes	United States	Record high maximum temperature	29.4 C (84.9 F)	35 of 100 (Notable)
Lyon - St Exupery	France	Record high maximum temperature	39.0 C (102.2 F)	34 of 100 (Routine)
Szombathely	Hungary	Record high minimum temperature	18.1 C (64.6 F)	34 of 100 (Routine)
San Miguel Totolapan	Mexico	Record daily precipitation	53.8 mm (2.1 in)	34 of 100 (Routine)
Batacosa	Mexico	Record low minimum temperature	15.0 C (59.0 F)	34 of 100 (Routine)
Ft Pierce	United States	Record high minimum temperature	26.7 C (80.1 F)	34 of 100 (Routine)
Waynoka	United States	Record daily precipitation	61.0 mm (2.4 in)	34 of 100 (Routine)
Clearwater	United States	Record high maximum temperature	32.8 C (91.0 F)	34 of 100 (Routine)
Le Bourget	France	Record high maximum temperature	36.0 C (96.8 F)	33 of 100 (Routine)
Los Gatos	United States	Record high minimum temperature	18.3 C (64.9 F)	33 of 100 (Routine)
Brunswick	United States	Record high minimum temperature	26.1 C (79.0 F)	33 of 100 (Routine)
Gosnells City	Australia	Record daily precipitation	28.4 mm (1.1 in)	32 of 100 (Routine)

Counts by Type and Timescale

1,039 records

Records set or tied on 19 August 2009 by type: Highest daily maximum 339, Lowest daily maximum 48, Highest daily minimum 358, Lowest daily minimum 111, Heaviest daily rainfall 183.

Records on 19 August 2009 by type
Record type	Records
Highest daily maximum	339
Lowest daily maximum	48
Highest daily minimum	358
Lowest daily minimum	111
Heaviest daily rainfall	183
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 19 August 2009 by timescale: all-time 0, monthly 17, daily 1,022.

How Much Records Were Beaten By

702 broken records

Margins by which the 702 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 90.4. Ties are not counted.

Top 20 by Significance

19 August 2009

Top 20 records on 19 August 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
19 August 2009	Duluth, US	daily rain	73.4 mm (2.9 in)	51.8 mm (2.0 in)	54 years	62 of 100 (Major)
19 August 2009	Brookport Dam 52, US	daily rain	74.4 mm (2.9 in)	41.9 mm (1.6 in)	68 years	57 of 100 (Notable)
19 August 2009	Armagh, GB	daily rain	50.0 mm (2.0 in)	9.9 mm (0.39 in)	119 years	56 of 100 (Notable)
19 August 2009	Moose Lake 1 SSE, US	daily rain	86.4 mm (3.4 in)	52.4 mm (2.1 in)	27 years	56 of 100 (Notable)
19 August 2009	Foxboro, US	daily rain	98.0 mm (3.9 in)	66.2 mm (2.6 in)	38 years	55 of 100 (Notable)
19 August 2009	Mt Vernon, US	daily rain	97.3 mm (3.8 in)	90.4 mm (3.6 in)	34 years	54 of 100 (Notable)
19 August 2009	Belgaum/Sambra, IN	daily rain	65.0 mm (2.6 in)	47.0 mm (1.9 in)	28 years	53 of 100 (Notable)
19 August 2009	Uliastai, CN	daily rain	52.1 mm (2.1 in)	37.7 mm (1.5 in)	22 years	51 of 100 (Notable)
19 August 2009	Manuel Avila Camacho, MX	daily rain	75.9 mm (3.0 in)	30.9 mm (1.2 in)	84 years	51 of 100 (Notable)
19 August 2009	Haleakala Rs 338, US	daily rain	76.2 mm (3.0 in)	49.5 mm (1.9 in)	36 years	51 of 100 (Notable)
19 August 2009	Huaquechula, MX	daily rain	56.9 mm (2.2 in)	37.1 mm (1.5 in)	32 years	48 of 100 (Notable)
19 August 2009	Chanute Martin Johnson AP, US	daily rain	64.3 mm (2.5 in)	16.5 mm (0.6 in)	95 years	47 of 100 (Notable)
19 August 2009	Glenvar, AU	daily rain	31.0 mm (1.2 in)	10.7 mm (0.4 in)	50 years	44 of 100 (Notable)
19 August 2009	Cinco Seores, MX	daily rain	76.5 mm (3.0 in)	38.1 mm (1.5 in)	20 years	44 of 100 (Notable)
19 August 2009	Superior, US	daily rain	60.2 mm (2.4 in)	29.7 mm (1.2 in)	38 years	44 of 100 (Notable)
19 August 2009	Castlewood, US	daily rain	51.6 mm (2.0 in)	15.5 mm (0.6 in)	71 years	43 of 100 (Notable)
19 August 2009	Ashland, US	daily high min	24.4 C (75.9 F)	1.1 C (2.0 F)	108 years	43 of 100 (Notable)
19 August 2009	Hagerstown 1E, US	daily high min	22.8 C (73.0 F)	1.1 C (2.0 F)	109 years	42 of 100 (Notable)
19 August 2009	Mt Pleasant, US	daily rain	47.5 mm (1.9 in)	14.0 mm (0.6 in)	78 years	42 of 100 (Notable)
19 August 2009	Presa la Calera, MX	daily low min	16.7 C (62.1 F)	3.3 C (5.9 F)	30 years	41 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 2009

Records set or tied on this calendar date in each year from 1797 to 2009. 2009 had 1,039 records.

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

Records on 08-19 in each year
Year	Records
1797	2
1800	1
1809	1
1820	1
1830	2
1831	1
1838	2
1844	2
1845	1
1846	1
1849	2
1857	1
1861	1
1862	1
1864	2
1867	1
1870	2
1872	1
1873	1
1874	1
1875	2
1877	3
1879	1
1880	1
1881	1
1882	1
1883	2
1884	2
1885	2
1886	2
1887	2
1888	1
1889	1
1890	4
1892	5
1893	2
1894	2
1895	1
1896	2
1897	2
1898	3
1899	9
1900	5
1901	13
1902	4
1903	6
1904	14
1905	16
1906	37
1907	17
1908	5
1909	24
1910	17
1911	9
1912	18
1913	9
1914	39
1915	34
1916	74
1917	200
1918	33
1919	31
1920	36
1921	22
1922	71
1923	97
1924	174
1925	154
1926	179
1927	343
1928	112
1929	163
1930	182
1931	207
1932	373
1933	328
1934	438
1935	389
1936	679
1937	305
1938	321
1939	432
1940	687
1941	431
1942	308
1943	596
1944	259
1945	427
1946	427
1947	896
1948	371
1949	411
1950	893
1951	362
1952	475
1953	412
1954	576
1955	780
1956	831
1957	325
1958	374
1959	733
1960	864
1961	425
1962	419
1963	570
1964	455
1965	550
1966	1,095
1967	839
1968	948
1969	501
1970	468
1971	376
1972	547
1973	519
1974	466
1975	561
1976	1,144
1977	938
1978	863
1979	1,492
1980	648
1981	1,004
1982	596
1983	1,387
1984	598
1985	713
1986	848
1987	811
1988	982
1989	660
1990	871
1991	656
1992	1,094
1993	771
1994	798
1995	1,542
1996	800
1997	958
1998	717
1999	980
2000	954
2001	1,027
2002	1,389
2003	918
2004	1,310
2005	920
2006	850
2007	1,360
2008	1,186
2009	1,039
2010	1,440
2011	975
2012	1,377
2013	765
2014	701
2015	989
2016	931
2017	439
2018	471
2019	601
2020	1,271
2021	1,366
2022	1,198
2023	910
2024	568
2025	786
2026	755

Download the Data

Data for records on 2009-08-19: 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	669
20 to 40	26
40 to 60	5
60 to 80	1
80 to 100	1