Weather Records on 12 August 1998

1,215 weather records were set or tied worldwide on 12 August 1998. Highest significance: Saint Johnsbury, US.

Key Facts for 12 August 1998

On 12 August 1998, 1,215 weather records were set or tied at long-record stations worldwide.
841 were record highs and 156 were record lows, counting maximum and minimum temperature.
By timescale, 17 were all-time records, 66 monthly and 1,132 daily.
Saint Johnsbury set a daily record precipitation of 72.4 mm (2.9 in) on 12 August 1998.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 443 records.

Record Map

1,215 stations

1,215 station records on 12 August 1998 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 August 1998: highest significance records shown on the map
Station	Country	Type	Value	Significance
Saint Johnsbury	United States	Record daily precipitation	72.4 mm (2.9 in)	74 of 100 (Major)
Moscow	United States	Record daily precipitation	92.7 mm (3.6 in)	68 of 100 (Major)
Koloa 936	United States	Record daily precipitation	63.0 mm (2.5 in)	64 of 100 (Major)
Merriman	United States	Record daily precipitation	106.7 mm (4.2 in)	62 of 100 (Major)
Toyama	Japan	Record daily precipitation	115.1 mm (4.5 in)	55 of 100 (Notable)
Minden	United States	Record daily precipitation	58.4 mm (2.3 in)	52 of 100 (Notable)
Heinersreuth-Vollhof	Germany	Record high maximum temperature	36.8 C (98.2 F)	51 of 100 (Notable)
San Miguel Ejutla	Mexico	Record high maximum temperature	38.9 C (102.0 F)	50 of 100 (Notable)
Trenton Dam 1N	United States	Record daily precipitation	52.3 mm (2.1 in)	48 of 100 (Notable)
W Lawai 931	United States	Record daily precipitation	27.9 mm (1.1 in)	47 of 100 (Notable)
Chemnitz	Germany	Record high minimum temperature	19.2 C (66.6 F)	45 of 100 (Notable)
Mahaulepu 941.1	United States	Record daily precipitation	46.2 mm (1.8 in)	45 of 100 (Notable)
Nozovka	Russia	Record daily precipitation	39.9 mm (1.6 in)	44 of 100 (Notable)
Lancaster	United States	Record daily precipitation	53.3 mm (2.1 in)	44 of 100 (Notable)
Mandalgobi	Mongolia	Record daily precipitation	39.0 mm (1.5 in)	43 of 100 (Notable)
El Carmen (Smn)	Mexico	Record daily precipitation	75.9 mm (3.0 in)	43 of 100 (Notable)
Bluff Lake	United States	Record daily precipitation	79.8 mm (3.1 in)	43 of 100 (Notable)
Culbertson	United States	Record daily precipitation	32.0 mm (1.3 in)	43 of 100 (Notable)
Jackson Exp STN	United States	Record daily precipitation	63.8 mm (2.5 in)	43 of 100 (Notable)
Escanaba	United States	Record low minimum temperature	5.0 C (41.0 F)	43 of 100 (Notable)
Lidkoping	Sweden	Record daily precipitation	31.5 mm (1.2 in)	42 of 100 (Notable)
Booneville	United States	Record daily precipitation	88.9 mm (3.5 in)	42 of 100 (Notable)
New Madrid	United States	Record daily precipitation	50.0 mm (2.0 in)	42 of 100 (Notable)
Union City	United States	Record daily precipitation	75.2 mm (3.0 in)	42 of 100 (Notable)
Risor Brannstasjon	Norway	Record daily precipitation	58.2 mm (2.3 in)	41 of 100 (Notable)
Samburg Wr	United States	Record daily precipitation	70.9 mm (2.8 in)	41 of 100 (Notable)
Kanalohuluhulu 1075	United States	Record daily precipitation	39.4 mm (1.6 in)	41 of 100 (Notable)
Hohenpeissenberg	Germany	Record high minimum temperature	21.0 C (69.8 F)	40 of 100 (Notable)
Rothenburg Ob der Tauber	Germany	Record high maximum temperature	36.6 C (97.9 F)	40 of 100 (Notable)
Estapilla	Mexico	Record daily precipitation	102.9 mm (4.1 in)	40 of 100 (Notable)
Gjerstad I Aust-Agder	Norway	Record daily precipitation	49.3 mm (1.9 in)	40 of 100 (Notable)
Napa State Hospital	United States	Record high minimum temperature	17.2 C (63.0 F)	40 of 100 (Notable)
Wauneta	United States	Record daily precipitation	49.8 mm (2.0 in)	40 of 100 (Notable)
Cuautla (Smn)	Mexico	Record high minimum temperature	25.0 C (77.0 F)	39 of 100 (Notable)
Big Moose 3 SE	United States	Record daily precipitation	88.9 mm (3.5 in)	39 of 100 (Notable)
Sulphur Springs	United States	Record high minimum temperature	25.6 C (78.1 F)	39 of 100 (Notable)
Birmingham AP	United States	Record daily precipitation	64.0 mm (2.5 in)	39 of 100 (Notable)
Rantoul	United States	Record low minimum temperature	10.6 C (51.1 F)	39 of 100 (Notable)
Munchen-Nymphenburg	Germany	Record high minimum temperature	20.0 C (68.0 F)	38 of 100 (Notable)
Risnes I Fjotland	Norway	Record daily precipitation	48.0 mm (1.9 in)	38 of 100 (Notable)
Richfield	United States	Record daily precipitation	36.3 mm (1.4 in)	38 of 100 (Notable)
Wien	Austria	Record high maximum temperature	35.2 C (95.4 F)	37 of 100 (Notable)
Fichtelberg	Germany	Record high minimum temperature	15.6 C (60.1 F)	37 of 100 (Notable)
Ejutla	Mexico	Record daily precipitation	69.9 mm (2.8 in)	37 of 100 (Notable)
San Pedro	Mexico	Record high maximum temperature	38.9 C (102.0 F)	37 of 100 (Notable)
Kislovodsk	Russia	Record low minimum temperature	7.9 C (46.2 F)	37 of 100 (Notable)
Batesville L&D 1	United States	Record daily precipitation	36.3 mm (1.4 in)	37 of 100 (Notable)
Live Oak	United States	Record high minimum temperature	24.4 C (75.9 F)	37 of 100 (Notable)
Old Forge	United States	Record daily precipitation	50.0 mm (2.0 in)	37 of 100 (Notable)
Nurnberg	Germany	Record high maximum temperature	36.5 C (97.7 F)	36 of 100 (Notable)
Hamada	Japan	Record high minimum temperature	28.4 C (83.1 F)	36 of 100 (Notable)
Ixtlahuacan (Smn)	Mexico	Record daily precipitation	79.8 mm (3.1 in)	36 of 100 (Notable)
Taylor	United States	Record daily precipitation	65.8 mm (2.6 in)	36 of 100 (Notable)
Brassua Dam	United States	Record daily precipitation	41.7 mm (1.6 in)	36 of 100 (Notable)
Trenton	United States	Record daily precipitation	73.7 mm (2.9 in)	36 of 100 (Notable)
Milan	Italy	Record high maximum temperature	35.5 C (95.9 F)	35 of 100 (Notable)
Navelsjo	Sweden	Record daily precipitation	25.4 mm (1.0 in)	35 of 100 (Notable)
Santa Paula	United States	Record high minimum temperature	18.3 C (64.9 F)	35 of 100 (Notable)
Marlin	United States	Record high minimum temperature	27.2 C (81.0 F)	35 of 100 (Notable)
Shimonoseki	Japan	Record high minimum temperature	28.8 C (83.8 F)	34 of 100 (Routine)

Counts by Type and Timescale

1,215 records

Records set or tied on 12 August 1998 by type: Highest daily maximum 426, Lowest daily maximum 67, Highest daily minimum 415, Lowest daily minimum 89, Heaviest daily rainfall 218.

Records on 12 August 1998 by type
Record type	Records
Highest daily maximum	426
Lowest daily maximum	67
Highest daily minimum	415
Lowest daily minimum	89
Heaviest daily rainfall	218
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 12 August 1998 by timescale: all-time 17, monthly 66, daily 1,132.

How Much Records Were Beaten By

957 broken records

Margins by which the 957 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 82.2. Ties are not counted.

Top 20 by Significance

12 August 1998

Top 20 records on 12 August 1998 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 August 1998	Saint Johnsbury, US	daily rain	72.4 mm (2.9 in)	36.3 mm (1.4 in)	102 years	74 of 100 (Major)
12 August 1998	Moscow, US	daily rain	92.7 mm (3.6 in)	64.3 mm (2.5 in)	72 years	68 of 100 (Major)
12 August 1998	Koloa 936, US	daily rain	63.0 mm (2.5 in)	27.4 mm (1.1 in)	63 years	64 of 100 (Major)
12 August 1998	Merriman, US	monthly rain	106.7 mm (4.2 in)	34.3 mm (1.4 in)	29 years	62 of 100 (Major)
12 August 1998	Toyama, JP	daily rain	115.1 mm (4.5 in)	82.2 mm (3.2 in)	39 years	55 of 100 (Notable)
12 August 1998	Minden, US	daily rain	58.4 mm (2.3 in)	24.6 mm (1.0 in)	95 years	52 of 100 (Notable)
12 August 1998	Heinersreuth-Vollhof, DE	monthly high max	36.8 C (98.2 F)	0.8 C (1.4 F)	105 years	51 of 100 (Notable)
12 August 1998	San Miguel Ejutla, MX	daily high max	38.9 C (102.0 F)	7.2 C (13.0 F)	68 years	50 of 100 (Notable)
12 August 1998	Trenton Dam 1N, US	daily rain	52.3 mm (2.1 in)	38.8 mm (1.5 in)	8 years	48 of 100 (Notable)
12 August 1998	W Lawai 931, US	daily rain	27.9 mm (1.1 in)	18.2 mm (0.7 in)	16 years	47 of 100 (Notable)
12 August 1998	Chemnitz, DE	daily high min	19.2 C (66.6 F)	1.6 C (2.9 F)	109 years	45 of 100 (Notable)
12 August 1998	Mahaulepu 941.1, US	daily rain	46.2 mm (1.8 in)	28.4 mm (1.1 in)	16 years	45 of 100 (Notable)
12 August 1998	Nozovka, RU	daily rain	39.9 mm (1.6 in)	18.3 mm (0.7 in)	39 years	44 of 100 (Notable)
12 August 1998	Lancaster, US	daily rain	53.3 mm (2.1 in)	22.6 mm (0.9 in)	43 years	44 of 100 (Notable)
12 August 1998	Mandalgobi, MN	daily rain	39.0 mm (1.5 in)	29.0 mm (1.1 in)	35 years	43 of 100 (Notable)
12 August 1998	El Carmen (Smn), MX	daily rain	75.9 mm (3.0 in)	45.9 mm (1.8 in)	32 years	43 of 100 (Notable)
12 August 1998	Bluff Lake, US	daily rain	79.8 mm (3.1 in)	44.0 mm (1.7 in)	49 years	43 of 100 (Notable)
12 August 1998	Culbertson, US	daily rain	32.0 mm (1.3 in)	9.1 mm (0.36 in)	88 years	43 of 100 (Notable)
12 August 1998	Jackson Exp STN, US	daily rain	63.8 mm (2.5 in)	26.5 mm (1.0 in)	52 years	43 of 100 (Notable)
12 August 1998	Escanaba, US	daily low min	5.0 C (41.0 F)	2.2 C (4.0 F)	96 years	43 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 1,215 records.

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

Records on 08-12 in each year
Year	Records
1793	1
1796	1
1811	2
1814	1
1815	1
1825	1
1843	1
1851	1
1854	1
1855	2
1856	1
1861	1
1864	3
1865	1
1867	1
1868	1
1871	2
1872	1
1873	1
1874	2
1875	3
1876	2
1879	1
1881	2
1883	1
1884	1
1885	1
1887	2
1888	2
1889	4
1890	4
1891	4
1892	2
1893	1
1894	1
1895	6
1896	2
1897	4
1898	1
1899	10
1900	1
1901	5
1902	9
1903	14
1904	13
1905	16
1906	8
1907	8
1908	31
1909	42
1910	16
1911	33
1912	40
1913	39
1914	26
1915	46
1916	31
1917	134
1918	37
1919	42
1920	26
1921	174
1922	71
1923	89
1924	267
1925	150
1926	154
1927	145
1928	173
1929	276
1930	501
1931	708
1932	418
1933	271
1934	471
1935	408
1936	591
1937	356
1938	237
1939	282
1940	545
1941	481
1942	257
1943	523
1944	595
1945	295
1946	655
1947	729
1948	384
1949	469
1950	442
1951	357
1952	533
1953	227
1954	969
1955	590
1956	265
1957	384
1958	406
1959	388
1960	707
1961	381
1962	466
1963	559
1964	1,346
1965	977
1966	777
1967	1,135
1968	444
1969	629
1970	422
1971	486
1972	473
1973	442
1974	560
1975	593
1976	495
1977	747
1978	571
1979	1,192
1980	692
1981	665
1982	789
1983	923
1984	665
1985	935
1986	615
1987	935
1988	1,518
1989	827
1990	727
1991	726
1992	1,134
1993	936
1994	861
1995	1,654
1996	1,336
1997	1,363
1998	1,215
1999	1,325
2000	741
2001	855
2002	1,345
2003	1,752
2004	1,872
2005	1,085
2006	874
2007	1,209
2008	970
2009	814
2010	1,907
2011	903
2012	910
2013	427
2014	787
2015	757
2016	1,290
2017	533
2018	571
2019	695
2020	730
2021	980
2022	616
2023	779
2024	659
2025	639
2026	849

Download the Data

Data for records on 1998-08-12: 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	928
20 to 40	23
40 to 60	4
60 to 80	1
80 to 100	1