Weather Records on 18 August 1980

771 weather records were set or tied worldwide on 18 August 1980. Highest significance: Morgantown Muni AP, US.

Key Facts for 18 August 1980

On 18 August 1980, 771 weather records were set or tied at long-record stations worldwide.
208 were record highs and 216 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 19 monthly and 751 daily.
Morgantown Muni AP set a daily record precipitation of 98.8 mm (3.9 in) on 18 August 1980.
Across 171 earlier years (1797 to 2026) the same calendar date averaged 439 records.

Record Map

771 stations

771 station records on 18 August 1980 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 August 1980: highest significance records shown on the map
Station	Country	Type	Value	Significance
Morgantown Muni AP	United States	Record daily precipitation	98.8 mm (3.9 in)	80 of 100 (Exceptional)
Manati 2 E	Puerto Rico [United States]	Record daily precipitation	73.7 mm (2.9 in)	67 of 100 (Major)
Schierke	Germany	Record daily precipitation	33.7 mm (1.3 in)	54 of 100 (Notable)
Agua Tibia	Mexico	Record daily precipitation	60.2 mm (2.4 in)	50 of 100 (Notable)
Woodburn	Australia	Record daily precipitation	26.6 mm (1.0 in)	48 of 100 (Notable)
Spavinaw	United States	Record daily precipitation	109.2 mm (4.3 in)	48 of 100 (Notable)
Gassaway	United States	Record daily precipitation	77.2 mm (3.0 in)	48 of 100 (Notable)
Saint Maries	United States	Record daily precipitation	32.5 mm (1.3 in)	46 of 100 (Notable)
Norwalk Wwtp	United States	Record daily precipitation	43.9 mm (1.7 in)	46 of 100 (Notable)
Pardelup	Australia	Record daily precipitation	29.2 mm (1.1 in)	45 of 100 (Notable)
Gavriila Buhta	Russia	Record daily precipitation	42.4 mm (1.7 in)	45 of 100 (Notable)
Ersov	Russia	Record daily precipitation	26.9 mm (1.1 in)	45 of 100 (Notable)
Hungry Horse Dam	United States	Record daily precipitation	38.9 mm (1.5 in)	45 of 100 (Notable)
Cadiz	United States	Record daily precipitation	64.8 mm (2.6 in)	45 of 100 (Notable)
Plant City	United States	Record daily precipitation	97.0 mm (3.8 in)	44 of 100 (Notable)
Whitefish	United States	Record daily precipitation	27.9 mm (1.1 in)	44 of 100 (Notable)
Atwood Lake	United States	Record daily precipitation	58.4 mm (2.3 in)	44 of 100 (Notable)
Rantoul	United States	Record daily precipitation	49.8 mm (2.0 in)	44 of 100 (Notable)
Troitsk	Russia	Record daily precipitation	28.9 mm (1.1 in)	43 of 100 (Notable)
Marshallville 1 SSW	United States	Record daily precipitation	72.4 mm (2.9 in)	43 of 100 (Notable)
Pawnee	United States	Record daily precipitation	81.3 mm (3.2 in)	43 of 100 (Notable)
Startup 1 E	United States	Record daily precipitation	43.2 mm (1.7 in)	43 of 100 (Notable)
Tarbes - Ossun	France	Record daily precipitation	43.0 mm (1.7 in)	42 of 100 (Notable)
Buckhannon	United States	Record daily precipitation	63.2 mm (2.5 in)	42 of 100 (Notable)
King River	Australia	Record daily precipitation	30.6 mm (1.2 in)	41 of 100 (Notable)
Martinsdale 3 NNW	United States	Record high minimum temperature	13.9 C (57.0 F)	41 of 100 (Notable)
Porongorup	Australia	Record daily precipitation	31.8 mm (1.3 in)	40 of 100 (Notable)
Anna	Russia	Record daily precipitation	46.6 mm (1.8 in)	40 of 100 (Notable)
Dover Dam	United States	Record daily precipitation	63.2 mm (2.5 in)	40 of 100 (Notable)
Holdenville 2SSE	United States	Record daily precipitation	44.2 mm (1.7 in)	40 of 100 (Notable)
Rowlesburg 1	United States	Record daily precipitation	69.9 mm (2.8 in)	40 of 100 (Notable)
Correntes	Brazil	Record daily precipitation	30.0 mm (1.2 in)	39 of 100 (Notable)
Madera	Mexico	Record daily precipitation	31.0 mm (1.2 in)	39 of 100 (Notable)
Rahden-Varl	Germany	Record daily precipitation	25.7 mm (1.0 in)	38 of 100 (Notable)
Uman	Ukraine	Record low maximum temperature	15.3 C (59.5 F)	38 of 100 (Notable)
Lexington Bluegrass AP	United States	Record high minimum temperature	23.9 C (75.0 F)	38 of 100 (Notable)
Kr. Marburg-Biedenkopf Colbe	Germany	Record daily precipitation	32.5 mm (1.3 in)	37 of 100 (Notable)
Kisinev	Moldova	Record low maximum temperature	17.7 C (63.9 F)	37 of 100 (Notable)
Fortine 1 N	United States	Record daily precipitation	25.7 mm (1.0 in)	37 of 100 (Notable)
Fyodorov Sovkhoz	Kazakhstan	Record daily precipitation	26.6 mm (1.0 in)	36 of 100 (Notable)
Panuco (Smn)	Mexico	Record low maximum temperature	21.7 C (71.1 F)	36 of 100 (Notable)
Rudnya	Russia	Record daily precipitation	35.3 mm (1.4 in)	36 of 100 (Notable)
Mattoon	United States	Record daily precipitation	50.3 mm (2.0 in)	36 of 100 (Notable)
Hobbs	United States	Record daily precipitation	71.4 mm (2.8 in)	36 of 100 (Notable)
Carrollton 3 NNE	United States	Record daily precipitation	38.6 mm (1.5 in)	36 of 100 (Notable)
Monterey	United States	Record low maximum temperature	20.0 C (68.0 F)	36 of 100 (Notable)
Chewelah	United States	Record daily precipitation	36.6 mm (1.4 in)	36 of 100 (Notable)
Pemberton	Australia	Record daily precipitation	47.2 mm (1.9 in)	35 of 100 (Notable)
Ostuta	Mexico	Record daily precipitation	85.9 mm (3.4 in)	35 of 100 (Notable)
Poltava	Ukraine	Record low maximum temperature	16.0 C (60.8 F)	35 of 100 (Notable)
Parsons 2 NW	United States	Record daily precipitation	67.6 mm (2.7 in)	35 of 100 (Notable)
Roy	United States	Record high minimum temperature	22.8 C (73.0 F)	35 of 100 (Notable)
Valley City 3 NNW	United States	Record low maximum temperature	17.2 C (63.0 F)	35 of 100 (Notable)
Bolivar Dam	United States	Record daily precipitation	54.6 mm (2.1 in)	35 of 100 (Notable)
Toulouse-Blagnac	France	Record daily precipitation	33.2 mm (1.3 in)	34 of 100 (Routine)
Tres Hermanos	Mexico	Record low maximum temperature	26.1 C (79.0 F)	34 of 100 (Routine)
Alicia 2 NNE	United States	Record high maximum temperature	38.9 C (102.0 F)	34 of 100 (Routine)
Beach City Lake	United States	Record daily precipitation	64.0 mm (2.5 in)	34 of 100 (Routine)
Glenville	United States	Record low maximum temperature	23.3 C (73.9 F)	34 of 100 (Routine)
Union de Tula	Mexico	Record daily precipitation	42.4 mm (1.7 in)	33 of 100 (Routine)

Counts by Type and Timescale

771 records

Records set or tied on 18 August 1980 by type: Highest daily maximum 41, Lowest daily maximum 162, Highest daily minimum 167, Lowest daily minimum 54, Heaviest daily rainfall 346, Deepest snow cover 1.

Records on 18 August 1980 by type
Record type	Records
Highest daily maximum	41
Lowest daily maximum	162
Highest daily minimum	167
Lowest daily minimum	54
Heaviest daily rainfall	346
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 18 August 1980 by timescale: all-time 1, monthly 19, daily 751.

How Much Records Were Beaten By

593 broken records

Margins by which the 593 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 200.0. Ties are not counted.

Top 20 by Significance

18 August 1980

Top 20 records on 18 August 1980 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 August 1980	Morgantown Muni AP, US	daily rain	98.8 mm (3.9 in)	75.4 mm (3.0 in)	106 years	80 of 100 (Exceptional)
18 August 1980	Manati 2 E, PR	daily rain	73.7 mm (2.9 in)	50.6 mm (2.0 in)	64 years	67 of 100 (Major)
18 August 1980	Schierke, DE	daily rain	33.7 mm (1.3 in)	14.7 mm (0.6 in)	73 years	54 of 100 (Notable)
18 August 1980	Agua Tibia, MX	daily rain	60.2 mm (2.4 in)	44.5 mm (1.8 in)	26 years	50 of 100 (Notable)
18 August 1980	Woodburn, AU	daily rain	26.6 mm (1.0 in)	13.6 mm (0.5 in)	64 years	48 of 100 (Notable)
18 August 1980	Spavinaw, US	daily rain	109.2 mm (4.3 in)	69.6 mm (2.7 in)	35 years	48 of 100 (Notable)
18 August 1980	Gassaway, US	daily rain	77.2 mm (3.0 in)	57.1 mm (2.2 in)	8 years	48 of 100 (Notable)
18 August 1980	Saint Maries, US	daily rain	32.5 mm (1.3 in)	13.4 mm (0.5 in)	54 years	46 of 100 (Notable)
18 August 1980	Norwalk Wwtp, US	daily rain	43.9 mm (1.7 in)	18.0 mm (0.7 in)	79 years	46 of 100 (Notable)
18 August 1980	Pardelup, AU	daily rain	29.2 mm (1.1 in)	10.1 mm (0.4 in)	70 years	45 of 100 (Notable)
18 August 1980	Gavriila Buhta, RU	daily rain	42.4 mm (1.7 in)	26.1 mm (1.0 in)	15 years	45 of 100 (Notable)
18 August 1980	Ersov, RU	daily rain	26.9 mm (1.1 in)	20.0 mm (0.8 in)	24 years	45 of 100 (Notable)
18 August 1980	Hungry Horse Dam, US	daily rain	38.9 mm (1.5 in)	29.2 mm (1.1 in)	12 years	45 of 100 (Notable)
18 August 1980	Cadiz, US	daily rain	64.8 mm (2.6 in)	30.3 mm (1.2 in)	40 years	45 of 100 (Notable)
18 August 1980	Plant City, US	daily rain	97.0 mm (3.8 in)	22.1 mm (0.9 in)	79 years	44 of 100 (Notable)
18 August 1980	Whitefish, US	daily rain	27.9 mm (1.1 in)	24.6 mm (1.0 in)	12 years	44 of 100 (Notable)
18 August 1980	Atwood Lake, US	daily rain	58.4 mm (2.3 in)	42.4 mm (1.7 in)	11 years	44 of 100 (Notable)
18 August 1980	Rantoul, US	daily rain	49.8 mm (2.0 in)	21.9 mm (0.9 in)	74 years	44 of 100 (Notable)
18 August 1980	Troitsk, RU	daily rain	28.9 mm (1.1 in)	21.9 mm (0.9 in)	33 years	43 of 100 (Notable)
18 August 1980	Marshallville 1 SSW, US	daily rain	72.4 mm (2.9 in)	51.3 mm (2.0 in)	1 year	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 1980

Records set or tied on this calendar date in each year from 1797 to 1980. 1980 had 771 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 1980-08-18: 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 2026-10-17 (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 25	565
25 to 50	19
50 to 75	7
75 to 100	1
100 to 125	0
125 to 150	0
150 to 175	0
175 to 200	1