Weather Records on 11 August 2015

696 weather records were set or tied worldwide on 11 August 2015. Highest significance: Haugan 1 W, US.

Key Facts for 11 August 2015

On 11 August 2015, 696 weather records were set or tied at long-record stations worldwide.
494 were record highs and 37 were record lows, counting maximum and minimum temperature.
By timescale, 7 were all-time records, 11 monthly and 678 daily.
Haugan 1 W set a daily record precipitation of 38.1 mm (1.5 in) on 11 August 2015.
Across 161 earlier years (1793 to 2026) the same calendar date averaged 459 records.

Record Map

696 stations

696 station records on 11 August 2015 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 August 2015: highest significance records shown on the map
Station	Country	Type	Value	Significance
Haugan 1 W	United States	Record daily precipitation	38.1 mm (1.5 in)	69 of 100 (Major)
Kimball 2NE	United States	Record daily precipitation	103.6 mm (4.1 in)	67 of 100 (Major)
Lewisburg 3 N	United States	Record daily precipitation	65.5 mm (2.6 in)	66 of 100 (Major)
Dannemora	United States	Record daily precipitation	47.2 mm (1.9 in)	60 of 100 (Major)
Qitai	China	Record daily precipitation	34.8 mm (1.4 in)	59 of 100 (Notable)
Nanjing	China	Record daily precipitation	123.4 mm (4.9 in)	57 of 100 (Notable)
Mt Morris 2W	United States	Record daily precipitation	33.5 mm (1.3 in)	56 of 100 (Notable)
Little Valley	United States	Record daily precipitation	64.3 mm (2.5 in)	55 of 100 (Notable)
White Sulphur Springs	United States	Record daily precipitation	64.0 mm (2.5 in)	53 of 100 (Notable)
Toccoa	United States	Record daily precipitation	60.2 mm (2.4 in)	52 of 100 (Notable)
Majuro Wbas AP	Marshall Islands	Record daily precipitation	105.7 mm (4.2 in)	51 of 100 (Notable)
Franklinville	United States	Record daily precipitation	60.7 mm (2.4 in)	50 of 100 (Notable)
Waverly	United States	Record daily precipitation	31.2 mm (1.2 in)	50 of 100 (Notable)
Bradford 4SW Rsch 5	United States	Record daily precipitation	83.6 mm (3.3 in)	50 of 100 (Notable)
New Castle	United States	Record daily precipitation	55.1 mm (2.2 in)	49 of 100 (Notable)
Milesovka	Czech Republic	Record high minimum temperature	20.2 C (68.4 F)	48 of 100 (Notable)
Port Gibson 1 NE	United States	Record high maximum temperature	39.4 C (102.9 F)	48 of 100 (Notable)
Valmora	United States	Record daily precipitation	30.5 mm (1.2 in)	47 of 100 (Notable)
Wien	Austria	Record high maximum temperature	36.2 C (97.2 F)	46 of 100 (Notable)
Warren	United States	Record daily precipitation	35.6 mm (1.4 in)	46 of 100 (Notable)
Jena Sternwarte	Germany	Record high minimum temperature	20.1 C (68.2 F)	44 of 100 (Notable)
Fichtelberg	Germany	Record high minimum temperature	16.0 C (60.8 F)	43 of 100 (Notable)
Angermunde	Germany	Record high maximum temperature	34.2 C (93.6 F)	43 of 100 (Notable)
Ft Valley	United States	Record high minimum temperature	14.4 C (57.9 F)	43 of 100 (Notable)
Pavilion 2NE	United States	Record daily precipitation	98.0 mm (3.9 in)	43 of 100 (Notable)
Gorlitz	Germany	Record high minimum temperature	19.4 C (66.9 F)	42 of 100 (Notable)
Monticello	United States	Record high maximum temperature	41.1 C (106.0 F)	42 of 100 (Notable)
Salem Ctr 2 E	United States	Record daily precipitation	61.5 mm (2.4 in)	42 of 100 (Notable)
Lehighton 1SSW	United States	Record daily precipitation	48.5 mm (1.9 in)	42 of 100 (Notable)
Monticello Muni AP	United States	Record high minimum temperature	25.6 C (78.1 F)	42 of 100 (Notable)
Nuwara Eliya	Sri Lanka	Record high minimum temperature	14.5 C (58.1 F)	41 of 100 (Notable)
Lindenberg	Germany	Record high maximum temperature	35.6 C (96.1 F)	41 of 100 (Notable)
Cambridge	United States	Record high maximum temperature	41.1 C (106.0 F)	41 of 100 (Notable)
Leesville	United States	Record high maximum temperature	40.6 C (105.1 F)	41 of 100 (Notable)
Rushford	United States	Record daily precipitation	55.4 mm (2.2 in)	41 of 100 (Notable)
Danevang 1 W	United States	Record high maximum temperature	40.0 C (104.0 F)	41 of 100 (Notable)
Pedlar Dam	United States	Record daily precipitation	49.3 mm (1.9 in)	41 of 100 (Notable)
Hyannis	United States	Record daily precipitation	41.1 mm (1.6 in)	40 of 100 (Notable)
Mt Airy 2 W	United States	Record daily precipitation	62.7 mm (2.5 in)	40 of 100 (Notable)
Alpine	United States	Record high maximum temperature	38.9 C (102.0 F)	40 of 100 (Notable)
Berlin-Dahlem	Germany	Record high maximum temperature	33.1 C (91.6 F)	39 of 100 (Notable)
St Joseph 3 N	United States	Record high maximum temperature	39.4 C (102.9 F)	39 of 100 (Notable)
Pearisburg 4 SSE	United States	Record daily precipitation	54.6 mm (2.1 in)	39 of 100 (Notable)
El Dorado Goodwin Fld	United States	Record high minimum temperature	26.1 C (79.0 F)	39 of 100 (Notable)
Fichtelberg	Germany	Record high maximum temperature	27.1 C (80.8 F)	38 of 100 (Notable)
Hurbanovo	Slovakia	Record high maximum temperature	38.2 C (100.8 F)	38 of 100 (Notable)
Allegany Sp	United States	Record daily precipitation	45.0 mm (1.8 in)	38 of 100 (Notable)
Olean	United States	Record daily precipitation	39.6 mm (1.6 in)	38 of 100 (Notable)
Bucyrus	United States	Record daily precipitation	54.1 mm (2.1 in)	38 of 100 (Notable)
Bad Muskau	Germany	Record high minimum temperature	19.6 C (67.3 F)	37 of 100 (Notable)
Gauhati	India	Record low minimum temperature	22.6 C (72.7 F)	37 of 100 (Notable)
Rison	United States	Record high minimum temperature	25.0 C (77.0 F)	37 of 100 (Notable)
Warsaw 6 SW	United States	Record daily precipitation	49.3 mm (1.9 in)	37 of 100 (Notable)
Lindenberg	Germany	Record high minimum temperature	21.0 C (69.8 F)	36 of 100 (Notable)
Szombathely	Hungary	Record high maximum temperature	34.3 C (93.7 F)	36 of 100 (Notable)
Pinnacles Np	United States	Record low minimum temperature	1.7 C (35.1 F)	36 of 100 (Notable)
Hartwell	United States	Record daily precipitation	49.8 mm (2.0 in)	36 of 100 (Notable)
Putneyville 2 SE Dam	United States	Record daily precipitation	62.2 mm (2.4 in)	36 of 100 (Notable)
Ogdensburg 4 NE	United States	Record daily precipitation	48.8 mm (1.9 in)	35 of 100 (Notable)
Piketon	United States	Record daily precipitation	39.4 mm (1.6 in)	35 of 100 (Notable)

Counts by Type and Timescale

696 records

Records set or tied on 11 August 2015 by type: Highest daily maximum 236, Lowest daily maximum 27, Highest daily minimum 258, Lowest daily minimum 10, Heaviest daily rainfall 165.

Records on 11 August 2015 by type
Record type	Records
Highest daily maximum	236
Lowest daily maximum	27
Highest daily minimum	258
Lowest daily minimum	10
Heaviest daily rainfall	165
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 11 August 2015 by timescale: all-time 7, monthly 11, daily 678.

How Much Records Were Beaten By

550 broken records

Margins by which the 550 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 96.6. Ties are not counted.

Top 20 by Significance

11 August 2015

Top 20 records on 11 August 2015 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 August 2015	Haugan 1 W, US	daily rain	38.1 mm (1.5 in)	20.8 mm (0.8 in)	82 years	69 of 100 (Major)
11 August 2015	Kimball 2NE, US	monthly rain	103.6 mm (4.1 in)	44.7 mm (1.8 in)	25 years	67 of 100 (Major)
11 August 2015	Lewisburg 3 N, US	daily rain	65.5 mm (2.6 in)	39.6 mm (1.6 in)	72 years	66 of 100 (Major)
11 August 2015	Dannemora, US	daily rain	47.2 mm (1.9 in)	25.6 mm (1.0 in)	80 years	60 of 100 (Major)
11 August 2015	Qitai, CN	daily rain	34.8 mm (1.4 in)	24.6 mm (1.0 in)	45 years	59 of 100 (Notable)
11 August 2015	Nanjing, CN	daily rain	123.4 mm (4.9 in)	96.6 mm (3.8 in)	37 years	57 of 100 (Notable)
11 August 2015	Mt Morris 2W, US	daily rain	33.5 mm (1.3 in)	17.2 mm (0.7 in)	119 years	56 of 100 (Notable)
11 August 2015	Little Valley, US	daily rain	64.3 mm (2.5 in)	46.5 mm (1.8 in)	28 years	55 of 100 (Notable)
11 August 2015	White Sulphur Springs, US	daily rain	64.0 mm (2.5 in)	16.5 mm (0.6 in)	90 years	53 of 100 (Notable)
11 August 2015	Toccoa, US	daily rain	60.2 mm (2.4 in)	22.9 mm (0.9 in)	100 years	52 of 100 (Notable)
11 August 2015	Majuro Wbas AP, MH	daily rain	105.7 mm (4.2 in)	55.4 mm (2.2 in)	36 years	51 of 100 (Notable)
11 August 2015	Franklinville, US	daily rain	60.7 mm (2.4 in)	33.8 mm (1.3 in)	28 years	50 of 100 (Notable)
11 August 2015	Waverly, US	daily rain	31.2 mm (1.2 in)	10.4 mm (0.4 in)	119 years	50 of 100 (Notable)
11 August 2015	Bradford 4SW Rsch 5, US	daily rain	83.6 mm (3.3 in)	46.5 mm (1.8 in)	10 years	50 of 100 (Notable)
11 August 2015	New Castle, US	daily rain	55.1 mm (2.2 in)	33.5 mm (1.3 in)	44 years	49 of 100 (Notable)
11 August 2015	Milesovka, CZ	daily high min	20.2 C (68.4 F)	2.5 C (4.5 F)	104 years	48 of 100 (Notable)
11 August 2015	Port Gibson 1 NE, US	daily high max	39.4 C (102.9 F)	2.2 C (4.0 F)	115 years	48 of 100 (Notable)
11 August 2015	Valmora, US	daily rain	30.5 mm (1.2 in)	14.8 mm (0.6 in)	70 years	47 of 100 (Notable)
11 August 2015	Wien, AT	daily high max	36.2 C (97.2 F)	2.7 C (4.9 F)	151 years	46 of 100 (Notable)
11 August 2015	Warren, US	daily rain	35.6 mm (1.4 in)	7.7 mm (0.30 in)	109 years	46 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

1793 to 2015

Records set or tied on this calendar date in each year from 1793 to 2015. 2015 had 696 records.

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

Records on 08-11 in each year
Year	Records
1793	1
1796	1
1811	1
1815	2
1838	1
1839	1
1841	1
1851	1
1855	1
1858	1
1861	2
1862	1
1863	1
1864	6
1865	1
1866	6
1869	4
1871	1
1875	1
1879	2
1881	1
1883	1
1885	1
1888	1
1889	4
1890	4
1891	1
1892	4
1893	1
1894	1
1895	2
1896	5
1897	3
1898	2
1899	3
1900	4
1901	4
1902	13
1903	12
1904	19
1905	9
1906	6
1907	8
1908	10
1909	41
1910	9
1911	24
1912	46
1913	43
1914	26
1915	27
1916	64
1917	217
1918	29
1919	18
1920	54
1921	201
1922	98
1923	80
1924	149
1925	219
1926	140
1927	190
1928	174
1929	354
1930	471
1931	453
1932	281
1933	416
1934	620
1935	499
1936	541
1937	356
1938	315
1939	389
1940	359
1941	807
1942	390
1943	345
1944	936
1945	401
1946	419
1947	709
1948	306
1949	471
1950	320
1951	296
1952	417
1953	283
1954	536
1955	319
1956	457
1957	305
1958	494
1959	337
1960	461
1961	429
1962	662
1963	493
1964	677
1965	793
1966	1,037
1967	1,071
1968	619
1969	533
1970	526
1971	711
1972	823
1973	451
1974	596
1975	753
1976	529
1977	845
1978	433
1979	797
1980	929
1981	645
1982	1,232
1983	1,095
1984	822
1985	804
1986	563
1987	885
1988	1,119
1989	983
1990	760
1991	822
1992	928
1993	840
1994	1,173
1995	1,324
1996	1,147
1997	1,512
1998	1,232
1999	1,152
2000	924
2001	811
2002	1,152
2003	1,601
2004	1,478
2005	1,031
2006	896
2007	1,428
2008	945
2009	836
2010	2,289
2011	1,106
2012	953
2013	470
2014	556
2015	696
2016	1,340
2017	619
2018	861
2019	758
2020	688
2021	834
2022	661
2023	757
2024	643
2025	722
2026	765

Download the Data

Data for records on 2015-08-11: 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	526
20 to 40	19
40 to 60	4
60 to 80	0
80 to 100	1