Weather Records on 11 August 1998

1,232 weather records were set or tied worldwide on 11 August 1998. Highest significance: Pactola Dam, US.

Key Facts for 11 August 1998

On 11 August 1998, 1,232 weather records were set or tied at long-record stations worldwide.
861 were record highs and 164 were record lows, counting maximum and minimum temperature.
By timescale, 29 were all-time records, 95 monthly and 1,108 daily.
Pactola Dam set a daily record precipitation of 35.6 mm (1.4 in) on 11 August 1998.
Across 161 earlier years (1793 to 2026) the same calendar date averaged 456 records.

Record Map

1,232 stations

1,232 station records on 11 August 1998 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 August 1998: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pactola Dam	United States	Record daily precipitation	35.6 mm (1.4 in)	57 of 100 (Notable)
Saint Johnsbury	United States	Record daily precipitation	77.5 mm (3.1 in)	57 of 100 (Notable)
Martin	United States	Record daily precipitation	71.6 mm (2.8 in)	56 of 100 (Notable)
Semej	Kazakhstan	Record high minimum temperature	25.4 C (77.7 F)	54 of 100 (Notable)
Ellington	United States	Record daily precipitation	86.4 mm (3.4 in)	53 of 100 (Notable)
Freiburg	Germany	Record high maximum temperature	37.6 C (99.7 F)	52 of 100 (Notable)
Gilman	United States	Record daily precipitation	76.2 mm (3.0 in)	52 of 100 (Notable)
San Miguel Ejutla	Mexico	Record high maximum temperature	37.8 C (100.0 F)	49 of 100 (Notable)
Newcastle	United States	Record daily precipitation	36.8 mm (1.4 in)	49 of 100 (Notable)
Freiburg	Germany	Record high minimum temperature	22.6 C (72.7 F)	48 of 100 (Notable)
Barabinsk	Russia	Record high minimum temperature	20.6 C (69.1 F)	48 of 100 (Notable)
Northfield	United States	Record daily precipitation	53.3 mm (2.1 in)	48 of 100 (Notable)
Upper Tract	United States	Record daily precipitation	25.9 mm (1.0 in)	47 of 100 (Notable)
Aachen	Germany	Record high minimum temperature	19.7 C (67.5 F)	46 of 100 (Notable)
Cooperstown	United States	Record daily precipitation	51.6 mm (2.0 in)	46 of 100 (Notable)
Watford City	United States	Record daily precipitation	36.3 mm (1.4 in)	46 of 100 (Notable)
Speculator	United States	Record daily precipitation	35.1 mm (1.4 in)	45 of 100 (Notable)
Trier	Germany	Record high maximum temperature	36.7 C (98.1 F)	44 of 100 (Notable)
Trier-Zewen	Germany	Record high maximum temperature	36.7 C (98.1 F)	44 of 100 (Notable)
Huixtla	Mexico	Record low minimum temperature	17.8 C (64.0 F)	44 of 100 (Notable)
Kremsmuenster	Austria	Record high maximum temperature	31.9 C (89.4 F)	43 of 100 (Notable)
Aurangabad Chikalth	India	Record daily precipitation	99.1 mm (3.9 in)	43 of 100 (Notable)
Metz-Frescaty	France	Record high maximum temperature	38.7 C (101.7 F)	42 of 100 (Notable)
Leipzig-Holzhausen	Germany	Record high maximum temperature	35.6 C (96.1 F)	41 of 100 (Notable)
Lichtentanne	Germany	Record high maximum temperature	34.1 C (93.4 F)	41 of 100 (Notable)
Tonala (Dge)	Mexico	Record high minimum temperature	26.7 C (80.1 F)	41 of 100 (Notable)
Morrisville 6 SW	United States	Record daily precipitation	54.4 mm (2.1 in)	41 of 100 (Notable)
Altastenberg	Germany	Record high maximum temperature	28.5 C (83.3 F)	40 of 100 (Notable)
Regensburg	Germany	Record high minimum temperature	17.6 C (63.7 F)	40 of 100 (Notable)
State College	United States	Record daily precipitation	34.5 mm (1.4 in)	40 of 100 (Notable)
Dumas	United States	Record daily precipitation	41.4 mm (1.6 in)	40 of 100 (Notable)
Salisbury 2 N	United States	Record daily precipitation	69.9 mm (2.8 in)	40 of 100 (Notable)
Saarbrucken/Ensheim	Germany	Record high maximum temperature	35.6 C (96.1 F)	39 of 100 (Notable)
Chemnitz	Germany	Record high maximum temperature	32.8 C (91.0 F)	39 of 100 (Notable)
Pocahontas 1	United States	Record daily precipitation	42.4 mm (1.7 in)	39 of 100 (Notable)
Whitehall	United States	Record daily precipitation	101.9 mm (4.0 in)	39 of 100 (Notable)
Kailua 446	United States	Record low minimum temperature	16.7 C (62.1 F)	39 of 100 (Notable)
Le Bourget	France	Record high maximum temperature	37.3 C (99.1 F)	38 of 100 (Notable)
Niederworresbach	Germany	Record high maximum temperature	36.6 C (97.9 F)	38 of 100 (Notable)
Mainz-Lerchenberg (Zdf)	Germany	Record high maximum temperature	38.1 C (100.6 F)	38 of 100 (Notable)
Bad Nauheim	Germany	Record high maximum temperature	37.0 C (98.6 F)	38 of 100 (Notable)
Bad Kreuznach	Germany	Record high maximum temperature	38.6 C (101.5 F)	38 of 100 (Notable)
Saarbrucken-Sankt Johann	Germany	Record high maximum temperature	36.5 C (97.7 F)	38 of 100 (Notable)
Indian Lake 2SW	United States	Record daily precipitation	35.8 mm (1.4 in)	38 of 100 (Notable)
Shanghai/Hongqiao	China	Record high maximum temperature	39.0 C (102.2 F)	37 of 100 (Notable)
Nurnberg	Germany	Record high maximum temperature	35.9 C (96.6 F)	37 of 100 (Notable)
Eberbach/Neckar	Germany	Record high maximum temperature	36.4 C (97.5 F)	37 of 100 (Notable)
Geisenheim	Germany	Record high maximum temperature	37.5 C (99.5 F)	37 of 100 (Notable)
Arnsberg	Germany	Record high maximum temperature	31.4 C (88.5 F)	37 of 100 (Notable)
Koblenz-Horchheim	Germany	Record high maximum temperature	38.0 C (100.4 F)	37 of 100 (Notable)
Weissenburg	Germany	Record high maximum temperature	35.6 C (96.1 F)	37 of 100 (Notable)
Poretskoye	Russia	Record daily precipitation	45.0 mm (1.8 in)	37 of 100 (Notable)
Mojave	United States	Record daily precipitation	25.4 mm (1.0 in)	37 of 100 (Notable)
Magdeburg	Germany	Record high maximum temperature	34.0 C (93.2 F)	36 of 100 (Notable)
Altastenberg	Germany	Record high minimum temperature	17.6 C (63.7 F)	36 of 100 (Notable)
Plauen	Germany	Record high maximum temperature	33.8 C (92.8 F)	36 of 100 (Notable)
Buctzotz	Mexico	Record high minimum temperature	25.0 C (77.0 F)	36 of 100 (Notable)
Maastricht	Netherlands	Record high maximum temperature	33.2 C (91.8 F)	36 of 100 (Notable)
Newport Beach Harbor	United States	Record high maximum temperature	30.6 C (87.1 F)	36 of 100 (Notable)
Marble Hill	United States	Record daily precipitation	42.2 mm (1.7 in)	36 of 100 (Notable)

Counts by Type and Timescale

1,232 records

Records set or tied on 11 August 1998 by type: Highest daily maximum 494, Lowest daily maximum 57, Highest daily minimum 367, Lowest daily minimum 107, Heaviest daily rainfall 207.

Records on 11 August 1998 by type
Record type	Records
Highest daily maximum	494
Lowest daily maximum	57
Highest daily minimum	367
Lowest daily minimum	107
Heaviest daily rainfall	207
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 11 August 1998 by timescale: all-time 29, monthly 95, daily 1,108.

How Much Records Were Beaten By

983 broken records

Margins by which the 983 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 72.4. Ties are not counted.

Top 20 by Significance

11 August 1998

Top 20 records on 11 August 1998 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 August 1998	Pactola Dam, US	daily rain	35.6 mm (1.4 in)	27.7 mm (1.1 in)	47 years	57 of 100 (Notable)
11 August 1998	Saint Johnsbury, US	daily rain	77.5 mm (3.1 in)	45.2 mm (1.8 in)	24 years	57 of 100 (Notable)
11 August 1998	Martin, US	monthly rain	71.6 mm (2.8 in)	20.8 mm (0.8 in)	56 years	56 of 100 (Notable)
11 August 1998	Semej, KZ	all-time high min	25.4 C (77.7 F)	1.3 C (2.3 F)	74 years	54 of 100 (Notable)
11 August 1998	Ellington, US	daily rain	86.4 mm (3.4 in)	72.4 mm (2.9 in)	24 years	53 of 100 (Notable)
11 August 1998	Freiburg, DE	monthly high max	37.6 C (99.7 F)	1.0 C (1.8 F)	105 years	52 of 100 (Notable)
11 August 1998	Gilman, US	monthly rain	76.2 mm (3.0 in)	17.8 mm (0.7 in)	64 years	52 of 100 (Notable)
11 August 1998	San Miguel Ejutla, MX	daily high max	37.8 C (100.0 F)	6.7 C (12.1 F)	68 years	49 of 100 (Notable)
11 August 1998	Newcastle, US	daily rain	36.8 mm (1.4 in)	15.2 mm (0.6 in)	72 years	49 of 100 (Notable)
11 August 1998	Freiburg, DE	daily high min	22.6 C (72.7 F)	2.6 C (4.7 F)	113 years	48 of 100 (Notable)
11 August 1998	Barabinsk, RU	monthly high min	20.6 C (69.1 F)	0.5 C (0.9 F)	96 years	48 of 100 (Notable)
11 August 1998	Northfield, US	daily rain	53.3 mm (2.1 in)	20.8 mm (0.8 in)	60 years	48 of 100 (Notable)
11 August 1998	Upper Tract, US	daily rain	25.9 mm (1.0 in)	15.7 mm (0.6 in)	80 years	47 of 100 (Notable)
11 August 1998	Aachen, DE	daily high min	19.7 C (67.5 F)	1.8 C (3.2 F)	104 years	46 of 100 (Notable)
11 August 1998	Cooperstown, US	daily rain	51.6 mm (2.0 in)	7.1 mm (0.28 in)	102 years	46 of 100 (Notable)
11 August 1998	Watford City, US	daily rain	36.3 mm (1.4 in)	20.0 mm (0.8 in)	51 years	46 of 100 (Notable)
11 August 1998	Speculator, US	daily rain	35.1 mm (1.4 in)	11.0 mm (0.4 in)	96 years	45 of 100 (Notable)
11 August 1998	Trier, DE	monthly high max	36.7 C (98.1 F)	1.2 C (2.2 F)	77 years	44 of 100 (Notable)
11 August 1998	Trier-Zewen, DE	monthly high max	36.7 C (98.1 F)	1.2 C (2.2 F)	77 years	44 of 100 (Notable)
11 August 1998	Huixtla, MX	daily low min	17.8 C (64.0 F)	3.3 C (5.9 F)	27 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

1793 to 1998

Records set or tied on this calendar date in each year from 1793 to 1998. 1998 had 1,232 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 1998-08-11: 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 10	909
10 to 20	47
20 to 30	16
30 to 40	5
40 to 50	4
50 to 60	1
60 to 70	0
70 to 80	1