Weather Records on 18 July 1981

624 weather records were set or tied worldwide on 18 July 1981. Highest significance: Trenton Dam 1N, US.

Key Facts for 18 July 1981

On 18 July 1981, 624 weather records were set or tied at long-record stations worldwide.
260 were record highs and 115 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 14 monthly and 608 daily.
Trenton Dam 1N set an all-time record daily precipitation of 156.5 mm (6.2 in) on 18 July 1981.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 461 records.

Record Map

624 stations

624 station records on 18 July 1981 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 July 1981: highest significance records shown on the map
Station	Country	Type	Value	Significance
Trenton Dam 1N	United States	Record daily precipitation	156.5 mm (6.2 in)	69 of 100 (Major)
Gorlitz	Germany	Record daily precipitation	52.4 mm (2.1 in)	66 of 100 (Major)
Bartow 1SE	United States	Record high minimum temperature	28.3 C (82.9 F)	66 of 100 (Major)
Franklin	United States	Record daily precipitation	85.1 mm (3.4 in)	65 of 100 (Major)
Zugspitze	Germany	Record daily precipitation	77.8 mm (3.1 in)	63 of 100 (Major)
Kirensk	Russia	Record daily precipitation	36.7 mm (1.4 in)	54 of 100 (Notable)
Wasserburg	Germany	Record daily precipitation	80.3 mm (3.2 in)	50 of 100 (Notable)
Roundup	United States	Record daily precipitation	34.3 mm (1.4 in)	50 of 100 (Notable)
Hohenpeissenberg	Germany	Record daily precipitation	69.7 mm (2.7 in)	49 of 100 (Notable)
Parsberg/Oberpfalz-Eglwang	Germany	Record daily precipitation	40.5 mm (1.6 in)	48 of 100 (Notable)
Alexander 4 NNW	United States	Record daily precipitation	48.0 mm (1.9 in)	48 of 100 (Notable)
Culbertson	United States	Record daily precipitation	104.1 mm (4.1 in)	47 of 100 (Notable)
Herrnhut	Germany	Record daily precipitation	59.1 mm (2.3 in)	45 of 100 (Notable)
Garmisch-Partenkirchen	Germany	Record daily precipitation	72.0 mm (2.8 in)	43 of 100 (Notable)
Central City	United States	Record daily precipitation	53.3 mm (2.1 in)	42 of 100 (Notable)
Mc Cook	United States	Record daily precipitation	51.6 mm (2.0 in)	42 of 100 (Notable)
Kr. Bautzen Kubschutz	Germany	Record daily precipitation	44.3 mm (1.7 in)	41 of 100 (Notable)
Trostberg	Germany	Record daily precipitation	78.7 mm (3.1 in)	41 of 100 (Notable)
Akron 4 E	United States	Record daily precipitation	95.3 mm (3.8 in)	41 of 100 (Notable)
Kalkaska	United States	Record daily precipitation	51.1 mm (2.0 in)	41 of 100 (Notable)
Palisade	United States	Record daily precipitation	98.0 mm (3.9 in)	41 of 100 (Notable)
Regensburg	Germany	Record daily precipitation	28.0 mm (1.1 in)	40 of 100 (Notable)
Col du Grand St-Bernard	Switzerland	Record daily precipitation	49.9 mm (2.0 in)	40 of 100 (Notable)
Ebersberg-Halbing	Germany	Record daily precipitation	63.4 mm (2.5 in)	39 of 100 (Notable)
Sarapul	Russia	Record daily precipitation	26.7 mm (1.1 in)	38 of 100 (Notable)
The Towers	South Africa	Record daily precipitation	33.0 mm (1.3 in)	38 of 100 (Notable)
Saentis	Switzerland	Record daily precipitation	91.3 mm (3.6 in)	38 of 100 (Notable)
Kanopolis Lake	United States	Record daily precipitation	50.8 mm (2.0 in)	38 of 100 (Notable)
Freiberg	Germany	Record daily precipitation	37.2 mm (1.5 in)	37 of 100 (Notable)
Schwangau-Horn	Germany	Record daily precipitation	86.3 mm (3.4 in)	37 of 100 (Notable)
Lake City 2 E	United States	Record high maximum temperature	37.2 C (99.0 F)	37 of 100 (Notable)
St Joseph 3 N	United States	Record high minimum temperature	25.0 C (77.0 F)	37 of 100 (Notable)
Steelville 2 N	United States	Record daily precipitation	55.4 mm (2.2 in)	37 of 100 (Notable)
Evergreen	United States	Record high maximum temperature	38.9 C (102.0 F)	36 of 100 (Notable)
Natchez	United States	Record high minimum temperature	25.6 C (78.1 F)	36 of 100 (Notable)
Koosharem	United States	Record daily precipitation	28.7 mm (1.1 in)	36 of 100 (Notable)
Prentice #2	United States	Record daily precipitation	48.8 mm (1.9 in)	36 of 100 (Notable)
Eichstatt-Landershofen	Germany	Record daily precipitation	30.1 mm (1.2 in)	35 of 100 (Notable)
Robertsdale	United States	Record high minimum temperature	26.1 C (79.0 F)	35 of 100 (Notable)
Shaki	Azerbaijan	Record daily precipitation	33.8 mm (1.3 in)	34 of 100 (Routine)
Clearwater Dam	United States	Record daily precipitation	46.5 mm (1.8 in)	34 of 100 (Routine)
Guide Rock	United States	Record daily precipitation	33.0 mm (1.3 in)	34 of 100 (Routine)
Hay Springs	United States	Record daily precipitation	32.8 mm (1.3 in)	34 of 100 (Routine)
Quincy Rgnl AP	United States	Record daily precipitation	54.1 mm (2.1 in)	34 of 100 (Routine)
Sonnblick	Austria	Record daily precipitation	49.8 mm (2.0 in)	33 of 100 (Routine)
Verona Villafranca	Italy	Record daily precipitation	40.1 mm (1.6 in)	33 of 100 (Routine)
Tapalpa (Smn)	Mexico	Record low maximum temperature	16.1 C (61.0 F)	33 of 100 (Routine)
Jacksonville Beach	United States	Record high maximum temperature	37.8 C (100.0 F)	33 of 100 (Routine)
Moore Haven Lock 1	United States	Record high maximum temperature	37.2 C (99.0 F)	33 of 100 (Routine)
Quitman 2 NW	United States	Record high maximum temperature	39.4 C (102.9 F)	33 of 100 (Routine)
Nitta Yuma	United States	Record high minimum temperature	24.4 C (75.9 F)	33 of 100 (Routine)
Eldorado Springs	United States	Record daily precipitation	41.4 mm (1.6 in)	33 of 100 (Routine)
Mauston 1 SE	United States	Record daily precipitation	37.3 mm (1.5 in)	33 of 100 (Routine)
Lerma	Mexico	Record daily precipitation	36.8 mm (1.4 in)	32 of 100 (Routine)
Kirov	Russia	Record daily precipitation	35.8 mm (1.4 in)	32 of 100 (Routine)
Monticello 5 SE	United States	Record high maximum temperature	38.9 C (102.0 F)	32 of 100 (Routine)
Vineland Station	Canada	Record daily precipitation	37.0 mm (1.5 in)	31 of 100 (Routine)
Oberstdorf	Germany	Record daily precipitation	56.8 mm (2.2 in)	31 of 100 (Routine)
Dresden-Hosterwitz	Germany	Record daily precipitation	47.8 mm (1.9 in)	31 of 100 (Routine)
Madison	United States	Record high maximum temperature	37.8 C (100.0 F)	31 of 100 (Routine)

Counts by Type and Timescale

624 records

Records set or tied on 18 July 1981 by type: Highest daily maximum 126, Lowest daily maximum 77, Highest daily minimum 134, Lowest daily minimum 38, Heaviest daily rainfall 249.

Records on 18 July 1981 by type
Record type	Records
Highest daily maximum	126
Lowest daily maximum	77
Highest daily minimum	134
Lowest daily minimum	38
Heaviest daily rainfall	249
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 July 1981 by timescale: all-time 2, monthly 14, daily 608.

How Much Records Were Beaten By

499 broken records

Margins by which the 499 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

18 July 1981

Top 20 records on 18 July 1981 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 July 1981	Trenton Dam 1N, US	all-time rain	156.5 mm (6.2 in)	72.4 mm (2.9 in)	11 years	69 of 100 (Major)
18 July 1981	Gorlitz, DE	daily rain	52.4 mm (2.1 in)	24.4 mm (1.0 in)	90 years	66 of 100 (Major)
18 July 1981	Bartow 1SE, US	all-time high min	28.3 C (82.9 F)	1.6 C (2.9 F)	84 years	66 of 100 (Major)
18 July 1981	Franklin, US	daily rain	85.1 mm (3.4 in)	51.6 mm (2.0 in)	68 years	65 of 100 (Major)
18 July 1981	Zugspitze, DE	daily rain	77.8 mm (3.1 in)	48.2 mm (1.9 in)	51 years	63 of 100 (Major)
18 July 1981	Kirensk, RU	daily rain	36.7 mm (1.4 in)	18.0 mm (0.7 in)	71 years	54 of 100 (Notable)
18 July 1981	Wasserburg, DE	daily rain	80.3 mm (3.2 in)	40.3 mm (1.6 in)	28 years	50 of 100 (Notable)
18 July 1981	Roundup, US	daily rain	34.3 mm (1.4 in)	29.0 mm (1.1 in)	16 years	50 of 100 (Notable)
18 July 1981	Hohenpeissenberg, DE	daily rain	69.7 mm (2.7 in)	30.6 mm (1.2 in)	32 years	49 of 100 (Notable)
18 July 1981	Parsberg/Oberpfalz-Eglwang, DE	daily rain	40.5 mm (1.6 in)	31.3 mm (1.2 in)	27 years	48 of 100 (Notable)
18 July 1981	Alexander 4 NNW, US	daily rain	48.0 mm (1.9 in)	26.4 mm (1.0 in)	19 years	48 of 100 (Notable)
18 July 1981	Culbertson, US	monthly rain	104.1 mm (4.1 in)	22.8 mm (0.9 in)	34 years	47 of 100 (Notable)
18 July 1981	Herrnhut, DE	daily rain	59.1 mm (2.3 in)	43.5 mm (1.7 in)	7 years	45 of 100 (Notable)
18 July 1981	Garmisch-Partenkirchen, DE	daily rain	72.0 mm (2.8 in)	33.8 mm (1.3 in)	28 years	43 of 100 (Notable)
18 July 1981	Central City, US	daily rain	53.3 mm (2.1 in)	29.9 mm (1.2 in)	39 years	42 of 100 (Notable)
18 July 1981	Mc Cook, US	daily rain	51.6 mm (2.0 in)	24.2 mm (1.0 in)	56 years	42 of 100 (Notable)
18 July 1981	Kr. Bautzen Kubschutz, DE	daily rain	44.3 mm (1.7 in)	24.8 mm (1.0 in)	6 years	41 of 100 (Notable)
18 July 1981	Trostberg, DE	daily rain	78.7 mm (3.1 in)	33.7 mm (1.3 in)	34 years	41 of 100 (Notable)
18 July 1981	Akron 4 E, US	monthly rain	95.3 mm (3.8 in)	1.3 mm (0.05 in)	73 years	41 of 100 (Notable)
18 July 1981	Kalkaska, US	daily rain	51.1 mm (2.0 in)	29.3 mm (1.2 in)	40 years	41 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 1981

Records set or tied on this calendar date in each year from 1793 to 1981. 1981 had 624 records.

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

Records on 07-18 in each year
Year	Records
1793	2
1801	1
1845	1
1847	1
1851	1
1858	1
1862	1
1863	2
1865	1
1866	2
1871	2
1872	1
1874	1
1877	1
1878	4
1880	1
1881	2
1883	2
1886	2
1887	2
1888	1
1889	2
1890	4
1891	1
1892	2
1895	1
1896	2
1897	6
1898	2
1899	3
1900	8
1901	5
1902	3
1903	14
1904	7
1905	22
1906	13
1907	12
1908	39
1909	11
1910	33
1911	42
1912	28
1913	21
1914	47
1915	95
1916	235
1917	265
1918	58
1919	38
1920	59
1921	67
1922	138
1923	126
1924	306
1925	217
1926	191
1927	85
1928	108
1929	123
1930	462
1931	382
1932	343
1933	228
1934	502
1935	212
1936	665
1937	334
1938	306
1939	424
1940	352
1941	349
1942	661
1943	277
1944	333
1945	350
1946	334
1947	385
1948	289
1949	521
1950	632
1951	307
1952	597
1953	493
1954	501
1955	423
1956	466
1957	325
1958	475
1959	548
1960	669
1961	280
1962	516
1963	269
1964	523
1965	707
1966	545
1967	735
1968	998
1969	590
1970	530
1971	625
1972	701
1973	976
1974	729
1975	643
1976	1,047
1977	839
1978	881
1979	821
1980	747
1981	624
1982	749
1983	1,071
1984	1,000
1985	582
1986	908
1987	1,845
1988	1,001
1989	1,233
1990	1,053
1991	589
1992	1,135
1993	1,013
1994	720
1995	904
1996	1,157
1997	785
1998	1,169
1999	900
2000	1,214
2001	909
2002	840
2003	1,159
2004	985
2005	1,210
2006	1,285
2007	1,267
2008	593
2009	1,757
2010	878
2011	1,148
2012	1,070
2013	920
2014	1,348
2015	746
2016	609
2017	426
2018	699
2019	548
2020	361
2021	674
2022	1,071
2023	867
2024	581
2025	779
2026	806

Download the Data

Data for records on 1981-07-18: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 10	400
10 to 20	60
20 to 30	24
30 to 40	8
40 to 50	5
50 to 60	1
60 to 70	0
70 to 80	1