Weather Records on 11 August 1999

1,152 weather records were set or tied worldwide on 11 August 1999. Highest significance: Madrid, US.

Key Facts for 11 August 1999

On 11 August 1999, 1,152 weather records were set or tied at long-record stations worldwide.
511 were record highs and 343 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 33 monthly and 1,115 daily.
Madrid set a daily record precipitation of 88.1 mm (3.5 in) on 11 August 1999.
Across 161 earlier years (1793 to 2026) the same calendar date averaged 456 records.

Record Map

1,152 stations

1,152 station records on 11 August 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 August 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Madrid	United States	Record daily precipitation	88.1 mm (3.5 in)	74 of 100 (Major)
Wallace 2W	United States	Record daily precipitation	51.8 mm (2.0 in)	70 of 100 (Major)
Grand Junction Walker Fld	United States	Record daily precipitation	25.9 mm (1.0 in)	66 of 100 (Major)
Richardton Abbey	United States	Record daily precipitation	70.6 mm (2.8 in)	64 of 100 (Major)
Medford Exp STN	United States	Record daily precipitation	29.5 mm (1.2 in)	64 of 100 (Major)
Tula	Russia	Record daily precipitation	89.9 mm (3.5 in)	59 of 100 (Notable)
Klamath Falls 2 SSW	United States	Record daily precipitation	28.4 mm (1.1 in)	58 of 100 (Notable)
Brest	Belarus	Record daily precipitation	48.8 mm (1.9 in)	54 of 100 (Notable)
Corrales	Mexico	Record daily precipitation	76.5 mm (3.0 in)	54 of 100 (Notable)
Whiteriver 1 SW	United States	Record high minimum temperature	22.2 C (72.0 F)	54 of 100 (Notable)
Fairfield	United States	Record daily precipitation	45.0 mm (1.8 in)	54 of 100 (Notable)
Glad Valley 2 W	United States	Record daily precipitation	44.7 mm (1.8 in)	54 of 100 (Notable)
Nara	Japan	Record daily precipitation	148.8 mm (5.9 in)	53 of 100 (Notable)
Ruzaevka	Kazakhstan	Record daily precipitation	37.1 mm (1.5 in)	53 of 100 (Notable)
Dufurrena - Denio 22WSW	United States	Record daily precipitation	25.4 mm (1.0 in)	53 of 100 (Notable)
Howard Prairie Dam	United States	Record daily precipitation	27.4 mm (1.1 in)	53 of 100 (Notable)
Cuovddatmohkki	Norway	Record daily precipitation	44.9 mm (1.8 in)	51 of 100 (Notable)
Miles City AP	United States	Record daily precipitation	28.4 mm (1.1 in)	51 of 100 (Notable)
Cut Bank AP	United States	Record daily precipitation	45.5 mm (1.8 in)	51 of 100 (Notable)
Marmarth	United States	Record daily precipitation	39.1 mm (1.5 in)	50 of 100 (Notable)
Vasilevici	Belarus	Record daily precipitation	38.2 mm (1.5 in)	48 of 100 (Notable)
Upland 2NE	United States	Record daily precipitation	83.8 mm (3.3 in)	48 of 100 (Notable)
Silver Lake Rs	United States	Record daily precipitation	29.2 mm (1.1 in)	48 of 100 (Notable)
Jalna	Australia	Record daily precipitation	30.6 mm (1.2 in)	47 of 100 (Notable)
Frontera Amatenango	Mexico	Record daily precipitation	82.8 mm (3.3 in)	47 of 100 (Notable)
Nicolas Bravo KM. 71	Mexico	Record daily precipitation	74.4 mm (2.9 in)	47 of 100 (Notable)
Holyoke	United States	Record daily precipitation	32.3 mm (1.3 in)	47 of 100 (Notable)
La Vega	Mexico	Record low minimum temperature	12.2 C (54.0 F)	46 of 100 (Notable)
Ogallala	United States	Record daily precipitation	43.4 mm (1.7 in)	46 of 100 (Notable)
Offenburg	Germany	Record daily precipitation	39.0 mm (1.5 in)	45 of 100 (Notable)
Pella 1S	United States	Record daily precipitation	54.4 mm (2.1 in)	45 of 100 (Notable)
Haddam	United States	Record daily precipitation	69.9 mm (2.8 in)	45 of 100 (Notable)
Buffalo Bill Dam	United States	Record high minimum temperature	20.6 C (69.1 F)	44 of 100 (Notable)
Willits 1 NE	United States	Record low maximum temperature	20.0 C (68.0 F)	43 of 100 (Notable)
Franklin 3 NW	United States	Record high minimum temperature	25.6 C (78.1 F)	43 of 100 (Notable)
Imperial	United States	Record daily precipitation	59.7 mm (2.4 in)	43 of 100 (Notable)
Bodie California St Historic P	United States	Record low maximum temperature	17.2 C (63.0 F)	42 of 100 (Notable)
Ft Bidwell	United States	Record low maximum temperature	21.7 C (71.1 F)	42 of 100 (Notable)
Mojave	United States	Record low maximum temperature	30.0 C (86.0 F)	42 of 100 (Notable)
Colstrip	United States	Record daily precipitation	32.0 mm (1.3 in)	42 of 100 (Notable)
Blackville 3 W	United States	Record high maximum temperature	38.9 C (102.0 F)	42 of 100 (Notable)
Evanston 1 E	United States	Record low maximum temperature	19.4 C (66.9 F)	42 of 100 (Notable)
Ft Pierce	United States	Record daily precipitation	42.2 mm (1.7 in)	41 of 100 (Notable)
Lowell	United States	Record low minimum temperature	9.4 C (48.9 F)	41 of 100 (Notable)
Red Willow Dam	United States	Record daily precipitation	69.1 mm (2.7 in)	41 of 100 (Notable)
Richland	United States	Record low maximum temperature	23.9 C (75.0 F)	41 of 100 (Notable)
Cheljabinsk-Balandi	Russia	Record daily precipitation	32.8 mm (1.3 in)	40 of 100 (Notable)
Bowman Dam	United States	Record low maximum temperature	16.7 C (62.1 F)	40 of 100 (Notable)
McCloud	United States	Record low maximum temperature	21.1 C (70.0 F)	40 of 100 (Notable)
Gomel	Belarus	Record daily precipitation	35.3 mm (1.4 in)	38 of 100 (Notable)
Saint Bernard	United States	Record high minimum temperature	25.6 C (78.1 F)	38 of 100 (Notable)
Wakeeney	United States	Record high minimum temperature	22.8 C (73.0 F)	38 of 100 (Notable)
Baker	United States	Record daily precipitation	30.7 mm (1.2 in)	38 of 100 (Notable)
Villaflores (Smn)	Mexico	Record daily precipitation	61.5 mm (2.4 in)	37 of 100 (Notable)
Alicia 2 NNE	United States	Record high minimum temperature	25.6 C (78.1 F)	37 of 100 (Notable)
Tahoe City	United States	Record low maximum temperature	17.2 C (63.0 F)	37 of 100 (Notable)
Holdrege	United States	Record daily precipitation	65.0 mm (2.6 in)	37 of 100 (Notable)
Adams 7 SSW	United States	Record daily precipitation	35.3 mm (1.4 in)	37 of 100 (Notable)
Williams 1 NW	United States	Record daily precipitation	38.9 mm (1.5 in)	37 of 100 (Notable)
Dubois	United States	Record high minimum temperature	14.4 C (57.9 F)	37 of 100 (Notable)

Counts by Type and Timescale

1,152 records

Records set or tied on 11 August 1999 by type: Highest daily maximum 218, Lowest daily maximum 210, Highest daily minimum 293, Lowest daily minimum 133, Heaviest daily rainfall 298.

Records on 11 August 1999 by type
Record type	Records
Highest daily maximum	218
Lowest daily maximum	210
Highest daily minimum	293
Lowest daily minimum	133
Heaviest daily rainfall	298
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 11 August 1999 by timescale: all-time 4, monthly 33, daily 1,115.

How Much Records Were Beaten By

834 broken records

Margins by which the 834 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 132.3. Ties are not counted.

Top 20 by Significance

11 August 1999

Top 20 records on 11 August 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 August 1999	Madrid, US	daily rain	88.1 mm (3.5 in)	67.3 mm (2.6 in)	81 years	74 of 100 (Major)
11 August 1999	Wallace 2W, US	daily rain	51.8 mm (2.0 in)	31.5 mm (1.2 in)	96 years	70 of 100 (Major)
11 August 1999	Grand Junction Walker Fld, US	daily rain	25.9 mm (1.0 in)	12.4 mm (0.5 in)	96 years	66 of 100 (Major)
11 August 1999	Richardton Abbey, US	daily rain	70.6 mm (2.8 in)	39.1 mm (1.5 in)	56 years	64 of 100 (Major)
11 August 1999	Medford Exp STN, US	daily rain	29.5 mm (1.2 in)	29.5 mm (1.2 in)	60 years	64 of 100 (Major)
11 August 1999	Tula, RU	all-time rain	89.9 mm (3.5 in)	23.5 mm (0.9 in)	6 years	59 of 100 (Notable)
11 August 1999	Klamath Falls 2 SSW, US	daily rain	28.4 mm (1.1 in)	16.5 mm (0.6 in)	85 years	58 of 100 (Notable)
11 August 1999	Brest, BY	daily rain	48.8 mm (1.9 in)	32.7 mm (1.3 in)	50 years	54 of 100 (Notable)
11 August 1999	Corrales, MX	daily rain	76.5 mm (3.0 in)	45.8 mm (1.8 in)	28 years	54 of 100 (Notable)
11 August 1999	Whiteriver 1 SW, US	daily high min	22.2 C (72.0 F)	5.0 C (9.0 F)	74 years	54 of 100 (Notable)
11 August 1999	Fairfield, US	daily rain	45.0 mm (1.8 in)	32.8 mm (1.3 in)	56 years	54 of 100 (Notable)
11 August 1999	Glad Valley 2 W, US	daily rain	44.7 mm (1.8 in)	26.9 mm (1.1 in)	48 years	54 of 100 (Notable)
11 August 1999	Nara, JP	daily rain	148.8 mm (5.9 in)	132.3 mm (5.2 in)	30 years	53 of 100 (Notable)
11 August 1999	Ruzaevka, KZ	daily rain	37.1 mm (1.5 in)	18.1 mm (0.7 in)	52 years	53 of 100 (Notable)
11 August 1999	Dufurrena - Denio 22WSW, US	daily rain	25.4 mm (1.0 in)	21.3 mm (0.8 in)	33 years	53 of 100 (Notable)
11 August 1999	Howard Prairie Dam, US	daily rain	27.4 mm (1.1 in)	26.4 mm (1.0 in)	30 years	53 of 100 (Notable)
11 August 1999	Cuovddatmohkki, NO	daily rain	44.9 mm (1.8 in)	28.2 mm (1.1 in)	28 years	51 of 100 (Notable)
11 August 1999	Miles City AP, US	daily rain	28.4 mm (1.1 in)	20.8 mm (0.8 in)	48 years	51 of 100 (Notable)
11 August 1999	Cut Bank AP, US	daily rain	45.5 mm (1.8 in)	34.3 mm (1.4 in)	8 years	51 of 100 (Notable)
11 August 1999	Marmarth, US	daily rain	39.1 mm (1.5 in)	27.2 mm (1.1 in)	36 years	50 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 1999

Records set or tied on this calendar date in each year from 1793 to 1999. 1999 had 1,152 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 1999-08-11: 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	791
20 to 40	34
40 to 60	6
60 to 80	2
80 to 100	0
100 to 120	0
120 to 140	1