Weather Records on 18 August 2002

1,306 weather records were set or tied worldwide on 18 August 2002. Highest significance: Carrollton, US.

Key Facts for 18 August 2002

On 18 August 2002, 1,306 weather records were set or tied at long-record stations worldwide.
862 were record highs and 354 were record lows, counting maximum and minimum temperature.
By timescale, 7 were all-time records, 32 monthly and 1,267 daily.
Carrollton set a daily record precipitation of 55.9 mm (2.2 in) on 18 August 2002.
Across 171 earlier years (1797 to 2026) the same calendar date averaged 436 records.

Record Map

1,306 stations

1,306 station records on 18 August 2002 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 August 2002: highest significance records shown on the map
Station	Country	Type	Value	Significance
Carrollton	United States	Record daily precipitation	55.9 mm (2.2 in)	56 of 100 (Notable)
Lafayette Rgnl AP	United States	Record daily precipitation	64.0 mm (2.5 in)	55 of 100 (Notable)
Pitiquito	Mexico	Record daily precipitation	83.1 mm (3.3 in)	53 of 100 (Notable)
Torsvag Fyr	Norway	Record daily precipitation	37.4 mm (1.5 in)	51 of 100 (Notable)
Adjuntas	Mexico	Record daily precipitation	75.4 mm (3.0 in)	48 of 100 (Notable)
Hoopeston	United States	Record daily precipitation	158.5 mm (6.2 in)	48 of 100 (Notable)
Lerwick	United Kingdom	Record high minimum temperature	14.6 C (58.3 F)	47 of 100 (Notable)
Columbia Rgnl AP	United States	Record daily precipitation	103.1 mm (4.1 in)	47 of 100 (Notable)
Tribune 1W	United States	Record low minimum temperature	8.9 C (48.0 F)	46 of 100 (Notable)
Mountainair	United States	Record high maximum temperature	37.8 C (100.0 F)	46 of 100 (Notable)
Aberdeen	United States	Record low minimum temperature	3.3 C (37.9 F)	46 of 100 (Notable)
Elkhart	United States	Record low maximum temperature	21.7 C (71.1 F)	45 of 100 (Notable)
Cooperstown	United States	Record low minimum temperature	2.2 C (36.0 F)	44 of 100 (Notable)
Renovo	United States	Record high minimum temperature	20.0 C (68.0 F)	44 of 100 (Notable)
Ipswich	United States	Record low minimum temperature	4.4 C (39.9 F)	44 of 100 (Notable)
Vestervig	Denmark	Record high minimum temperature	17.4 C (63.3 F)	43 of 100 (Notable)
Clausthal-Zellerfeld	Germany	Record high minimum temperature	17.2 C (63.0 F)	43 of 100 (Notable)
Finca Ocotlan	Mexico	Record daily precipitation	80.3 mm (3.2 in)	43 of 100 (Notable)
Barguzin	Russia	Record high minimum temperature	18.6 C (65.5 F)	43 of 100 (Notable)
Haparanda	Sweden	Record high minimum temperature	16.3 C (61.3 F)	43 of 100 (Notable)
Jerome	United States	Record high minimum temperature	23.3 C (73.9 F)	43 of 100 (Notable)
Warsaw 2 NW	United States	Record high minimum temperature	25.6 C (78.1 F)	43 of 100 (Notable)
Mancos 1SW	United States	Record high maximum temperature	32.2 C (90.0 F)	42 of 100 (Notable)
Spencer 1 N	United States	Record low minimum temperature	5.6 C (42.1 F)	42 of 100 (Notable)
Ashley	United States	Record low minimum temperature	2.2 C (36.0 F)	42 of 100 (Notable)
Millport 4 NE	United States	Record high minimum temperature	22.2 C (72.0 F)	42 of 100 (Notable)
Tranebjerg	Denmark	Record high minimum temperature	18.2 C (64.8 F)	41 of 100 (Notable)
Cape May 2 NW	United States	Record high minimum temperature	24.4 C (75.9 F)	41 of 100 (Notable)
Chambersburg 1 ESE	United States	Record high maximum temperature	34.4 C (93.9 F)	41 of 100 (Notable)
Armour	United States	Record low minimum temperature	7.8 C (46.0 F)	41 of 100 (Notable)
Chamal Nuevo	Mexico	Record low minimum temperature	12.8 C (55.0 F)	40 of 100 (Notable)
Trondheim - Voll	Norway	Record high minimum temperature	19.0 C (66.2 F)	40 of 100 (Notable)
Fruita	United States	Record high maximum temperature	37.8 C (100.0 F)	40 of 100 (Notable)
David City 4E	United States	Record low maximum temperature	17.8 C (64.0 F)	40 of 100 (Notable)
Hamburg	United States	Record high minimum temperature	22.2 C (72.0 F)	40 of 100 (Notable)
Carapan	Mexico	Record high maximum temperature	32.2 C (90.0 F)	39 of 100 (Notable)
Mohonk Lake	United States	Record high minimum temperature	23.9 C (75.0 F)	39 of 100 (Notable)
Rome R B Russell AP	United States	Record daily precipitation	43.2 mm (1.7 in)	39 of 100 (Notable)
Santa Cruz	United States	Record low maximum temperature	16.7 C (62.1 F)	38 of 100 (Notable)
Spicer	United States	Record high maximum temperature	29.4 C (84.9 F)	38 of 100 (Notable)
Hoxie	United States	Record low maximum temperature	21.1 C (70.0 F)	38 of 100 (Notable)
Purdum	United States	Record low minimum temperature	7.2 C (45.0 F)	38 of 100 (Notable)
Clovis	United States	Record high minimum temperature	20.6 C (69.1 F)	38 of 100 (Notable)
Billings 1SW	United States	Record daily precipitation	76.5 mm (3.0 in)	37 of 100 (Notable)
Ewing	United States	Record low minimum temperature	6.1 C (43.0 F)	37 of 100 (Notable)
Hightstown 2 W	United States	Record high maximum temperature	35.6 C (96.1 F)	37 of 100 (Notable)
Plainfield	United States	Record high maximum temperature	36.7 C (98.1 F)	37 of 100 (Notable)
Stephan 2 NW	United States	Record low maximum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
Nemours (Ghazaouet)	Algeria	Record high minimum temperature	24.5 C (76.1 F)	36 of 100 (Notable)
Holmogadd A	Sweden	Record high minimum temperature	19.1 C (66.4 F)	36 of 100 (Notable)
Wickenburg	United States	Record high minimum temperature	26.7 C (80.1 F)	36 of 100 (Notable)
Wakefield 3NW	United States	Record low minimum temperature	7.2 C (45.0 F)	36 of 100 (Notable)
Weeping Water	United States	Record low maximum temperature	21.1 C (70.0 F)	36 of 100 (Notable)
Beaverhead R/S	United States	Record low minimum temperature	0.6 C (33.1 F)	36 of 100 (Notable)
Svinoy Fyr	Norway	Record high maximum temperature	24.8 C (76.6 F)	35 of 100 (Notable)
Lees Ferry	United States	Record high minimum temperature	28.3 C (82.9 F)	35 of 100 (Notable)
Santa Barbara	United States	Record low minimum temperature	7.2 C (45.0 F)	35 of 100 (Notable)
Cheyenne Wells 2NE	United States	Record high maximum temperature	38.9 C (102.0 F)	35 of 100 (Notable)
Postville	United States	Record low minimum temperature	5.0 C (41.0 F)	35 of 100 (Notable)
Mellette 4 W	United States	Record low minimum temperature	4.4 C (39.9 F)	35 of 100 (Notable)

Counts by Type and Timescale

1,306 records

Records set or tied on 18 August 2002 by type: Highest daily maximum 398, Lowest daily maximum 147, Highest daily minimum 464, Lowest daily minimum 207, Heaviest daily rainfall 90.

Records on 18 August 2002 by type
Record type	Records
Highest daily maximum	398
Lowest daily maximum	147
Highest daily minimum	464
Lowest daily minimum	207
Heaviest daily rainfall	90
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 August 2002 by timescale: all-time 7, monthly 32, daily 1,267.

How Much Records Were Beaten By

936 broken records

Margins by which the 936 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

18 August 2002

Top 20 records on 18 August 2002 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 August 2002	Carrollton, US	daily rain	55.9 mm (2.2 in)	27.2 mm (1.1 in)	100 years	56 of 100 (Notable)
18 August 2002	Lafayette Rgnl AP, US	daily rain	64.0 mm (2.5 in)	23.6 mm (0.9 in)	106 years	55 of 100 (Notable)
18 August 2002	Pitiquito, MX	daily rain	83.1 mm (3.3 in)	69.1 mm (2.7 in)	28 years	53 of 100 (Notable)
18 August 2002	Torsvag Fyr, NO	daily rain	37.4 mm (1.5 in)	20.3 mm (0.8 in)	20 years	51 of 100 (Notable)
18 August 2002	Adjuntas, MX	daily rain	75.4 mm (3.0 in)	39.3 mm (1.5 in)	28 years	48 of 100 (Notable)
18 August 2002	Hoopeston, US	all-time rain	158.5 mm (6.2 in)	22.9 mm (0.9 in)	8 years	48 of 100 (Notable)
18 August 2002	Lerwick, GB	all-time high min	14.6 C (58.3 F)	0.2 C (0.4 F)	64 years	47 of 100 (Notable)
18 August 2002	Columbia Rgnl AP, US	daily rain	103.1 mm (4.1 in)	90.4 mm (3.6 in)	15 years	47 of 100 (Notable)
18 August 2002	Tribune 1W, US	daily low min	8.9 C (48.0 F)	1.7 C (3.1 F)	102 years	46 of 100 (Notable)
18 August 2002	Mountainair, US	monthly high max	37.8 C (100.0 F)	1.1 C (2.0 F)	79 years	46 of 100 (Notable)
18 August 2002	Aberdeen, US	daily low min	3.3 C (37.9 F)	2.8 C (5.0 F)	106 years	46 of 100 (Notable)
18 August 2002	Elkhart, US	daily low max	21.7 C (71.1 F)	3.9 C (7.0 F)	87 years	45 of 100 (Notable)
18 August 2002	Cooperstown, US	daily low min	2.2 C (36.0 F)	2.2 C (4.0 F)	97 years	44 of 100 (Notable)
18 August 2002	Renovo, US	daily high min	20.0 C (68.0 F)	1.7 C (3.1 F)	103 years	44 of 100 (Notable)
18 August 2002	Ipswich, US	daily low min	4.4 C (39.9 F)	2.3 C (4.1 F)	96 years	44 of 100 (Notable)
18 August 2002	Vestervig, DK	daily high min	17.4 C (63.3 F)	0.8 C (1.4 F)	126 years	43 of 100 (Notable)
18 August 2002	Clausthal-Zellerfeld, DE	daily high min	17.2 C (63.0 F)	1.1 C (2.0 F)	103 years	43 of 100 (Notable)
18 August 2002	Finca Ocotlan, MX	daily rain	80.3 mm (3.2 in)	50.3 mm (2.0 in)	12 years	43 of 100 (Notable)
18 August 2002	Barguzin, RU	daily high min	18.6 C (65.5 F)	2.2 C (4.0 F)	92 years	43 of 100 (Notable)
18 August 2002	Haparanda, SE	daily high min	16.3 C (61.3 F)	1.3 C (2.3 F)	119 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

1797 to 2002

Records set or tied on this calendar date in each year from 1797 to 2002. 2002 had 1,306 records.

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

Records on 08-18 in each year
Year	Records
1797	2
1805	1
1816	1
1827	1
1829	1
1830	1
1833	1
1841	1
1844	1
1845	3
1846	1
1847	1
1849	1
1851	1
1852	1
1853	1
1854	2
1855	1
1856	1
1861	1
1864	2
1866	1
1868	2
1869	1
1870	2
1872	1
1873	1
1875	3
1876	1
1878	1
1879	2
1883	3
1885	3
1886	3
1887	3
1888	2
1889	1
1890	1
1891	2
1892	6
1893	4
1894	4
1895	1
1898	4
1899	6
1900	2
1901	10
1902	8
1903	6
1904	8
1905	10
1906	40
1907	7
1908	21
1909	24
1910	16
1911	11
1912	21
1913	43
1914	37
1915	60
1916	71
1917	70
1918	53
1919	34
1920	51
1921	39
1922	129
1923	90
1924	225
1925	300
1926	168
1927	269
1928	141
1929	181
1930	150
1931	241
1932	382
1933	431
1934	638
1935	424
1936	766
1937	308
1938	243
1939	381
1940	434
1941	467
1942	333
1943	738
1944	325
1945	400
1946	416
1947	958
1948	315
1949	393
1950	683
1951	355
1952	405
1953	323
1954	622
1955	795
1956	580
1957	380
1958	580
1959	537
1960	599
1961	415
1962	428
1963	760
1964	443
1965	525
1966	573
1967	623
1968	795
1969	530
1970	597
1971	381
1972	493
1973	734
1974	639
1975	844
1976	917
1977	1,112
1978	854
1979	1,309
1980	771
1981	1,386
1982	563
1983	1,420
1984	600
1985	765
1986	861
1987	1,609
1988	1,351
1989	952
1990	920
1991	533
1992	1,497
1993	706
1994	1,027
1995	1,882
1996	760
1997	1,191
1998	923
1999	888
2000	1,183
2001	1,036
2002	1,306
2003	860
2004	1,050
2005	865
2006	842
2007	1,116
2008	1,265
2009	839
2010	1,167
2011	1,239
2012	1,247
2013	752
2014	751
2015	880
2016	704
2017	565
2018	462
2019	615
2020	1,541
2021	1,118
2022	1,237
2023	1,094
2024	696
2025	455
2026	545

Download the Data

Data for records on 2002-08-18: 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 20	921
20 to 40	11
40 to 60	2
60 to 80	1
80 to 100	1