Weather Records on 18 July 1987

1,845 weather records were set or tied worldwide on 18 July 1987. Highest significance: Milesville 5 NE, US.

Key Facts for 18 July 1987

On 18 July 1987, 1,845 weather records were set or tied at long-record stations worldwide.
251 were record highs and 966 were record lows, counting maximum and minimum temperature.
By timescale, 9 were all-time records, 150 monthly and 1,686 daily.
Milesville 5 NE set an all-time record daily precipitation of 164.8 mm (6.5 in) on 18 July 1987.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 453 records.

Record Map

1,845 stations

1,845 station records on 18 July 1987 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 July 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
Milesville 5 NE	United States	Record daily precipitation	164.8 mm (6.5 in)	87 of 100 (Exceptional)
Anklam	Germany	Record daily precipitation	126.2 mm (5.0 in)	84 of 100 (Exceptional)
McKenzie Rvr Rs	United States	Record daily precipitation	68.3 mm (2.7 in)	82 of 100 (Exceptional)
Salem AP (McNary Field)	United States	Record daily precipitation	45.7 mm (1.8 in)	75 of 100 (Major)
Waterloo	United States	Record daily precipitation	38.6 mm (1.5 in)	70 of 100 (Major)
Tarlee	Australia	Record daily precipitation	32.0 mm (1.3 in)	69 of 100 (Major)
Ashland	United States	Record daily precipitation	34.3 mm (1.4 in)	69 of 100 (Major)
Eugene-Mahlon Sweet Fld	United States	Record daily precipitation	61.2 mm (2.4 in)	66 of 100 (Major)
Williston Sloulin Fld	United States	Record daily precipitation	85.1 mm (3.4 in)	66 of 100 (Major)
Ft Benton	United States	Record daily precipitation	30.2 mm (1.2 in)	65 of 100 (Major)
Kent	United States	Record daily precipitation	25.1 mm (1.0 in)	65 of 100 (Major)
Oksoey Fyr	Norway	Record daily precipitation	50.0 mm (2.0 in)	64 of 100 (Major)
Gibson Dam	United States	Record daily precipitation	50.8 mm (2.0 in)	64 of 100 (Major)
Gartz/Oder	Germany	Record daily precipitation	72.2 mm (2.8 in)	62 of 100 (Major)
Augusta	United States	Record daily precipitation	43.2 mm (1.7 in)	62 of 100 (Major)
Holter Dam	United States	Record daily precipitation	27.7 mm (1.1 in)	61 of 100 (Major)
Ft Bidwell	United States	Record low maximum temperature	13.9 C (57.0 F)	59 of 100 (Notable)
Lookout Pt Dam	United States	Record daily precipitation	37.1 mm (1.5 in)	59 of 100 (Notable)
Sandheads	India	Record daily precipitation	188.0 mm (7.4 in)	58 of 100 (Notable)
Cottage Grove 2E	United States	Record daily precipitation	46.7 mm (1.8 in)	58 of 100 (Notable)
Granville	United States	Record daily precipitation	52.8 mm (2.1 in)	57 of 100 (Notable)
Ashland	United States	Record low maximum temperature	12.8 C (55.0 F)	56 of 100 (Notable)
Dallas 2 NE	United States	Record daily precipitation	44.5 mm (1.8 in)	56 of 100 (Notable)
Arkona	Germany	Record daily precipitation	48.2 mm (1.9 in)	55 of 100 (Notable)
Clover Valley	United States	Record low maximum temperature	17.2 C (63.0 F)	55 of 100 (Notable)
Pretty Rock	United States	Record daily precipitation	51.3 mm (2.0 in)	55 of 100 (Notable)
Hopelchen	Mexico	Record daily precipitation	89.9 mm (3.5 in)	54 of 100 (Notable)
Robben Island (Vrt)	South Africa	Record daily precipitation	55.4 mm (2.2 in)	54 of 100 (Notable)
New Salem 5NW	United States	Record daily precipitation	53.1 mm (2.1 in)	54 of 100 (Notable)
McKenzie Rvr Rs	United States	Record low maximum temperature	13.3 C (55.9 F)	54 of 100 (Notable)
Scotts Mills 9 SE	United States	Record daily precipitation	57.9 mm (2.3 in)	54 of 100 (Notable)
Berlin-Tempelhof	Germany	Record daily precipitation	44.3 mm (1.7 in)	53 of 100 (Notable)
Tribsees	Germany	Record daily precipitation	45.7 mm (1.8 in)	53 of 100 (Notable)
Bowman Dam	United States	Record low maximum temperature	7.2 C (45.0 F)	53 of 100 (Notable)
Wellfleet	United States	Record daily precipitation	55.1 mm (2.2 in)	53 of 100 (Notable)
Purcell 2 SW	United States	Record daily precipitation	92.7 mm (3.6 in)	53 of 100 (Notable)
P-Ranch South Place	United States	Record low maximum temperature	12.8 C (55.0 F)	53 of 100 (Notable)
Greifswald	Germany	Record daily precipitation	74.6 mm (2.9 in)	52 of 100 (Notable)
Marion Forks Fish Hatchery	United States	Record daily precipitation	44.7 mm (1.8 in)	52 of 100 (Notable)
The Poplars	United States	Record daily precipitation	29.7 mm (1.2 in)	52 of 100 (Notable)
Newport	United States	Record daily precipitation	36.1 mm (1.4 in)	52 of 100 (Notable)
Herefoss	Norway	Record daily precipitation	59.4 mm (2.3 in)	51 of 100 (Notable)
Mackay Lost Rvr Rs	United States	Record low maximum temperature	15.6 C (60.1 F)	51 of 100 (Notable)
Itasca UNIV of Minn	United States	Record daily precipitation	107.4 mm (4.2 in)	51 of 100 (Notable)
Pokegama Dam	United States	Record daily precipitation	85.9 mm (3.4 in)	51 of 100 (Notable)
Hebgen Dam	United States	Record low maximum temperature	12.8 C (55.0 F)	51 of 100 (Notable)
Ueckermunde	Germany	Record daily precipitation	83.8 mm (3.3 in)	50 of 100 (Notable)
Nevada City	United States	Record low maximum temperature	13.3 C (55.9 F)	50 of 100 (Notable)
Grand Rapids Forestry Lab	United States	Record daily precipitation	76.5 mm (3.0 in)	50 of 100 (Notable)
Wells	United States	Record low maximum temperature	17.8 C (64.0 F)	50 of 100 (Notable)
Rugby	United States	Record daily precipitation	51.3 mm (2.0 in)	50 of 100 (Notable)
Stockton 1 E	United States	Record daily precipitation	160.3 mm (6.3 in)	49 of 100 (Notable)
Dorena	United States	Record daily precipitation	40.6 mm (1.6 in)	49 of 100 (Notable)
Bayfield 6 N	United States	Record daily precipitation	111.8 mm (4.4 in)	49 of 100 (Notable)
Smith Bay (Smiths Bay)	Australia	Record daily precipitation	33.8 mm (1.3 in)	48 of 100 (Notable)
Muncheberg	Germany	Record daily precipitation	77.2 mm (3.0 in)	48 of 100 (Notable)
Putbus	Germany	Record daily precipitation	84.0 mm (3.3 in)	48 of 100 (Notable)
Mys Terpenij	Russia	Record daily precipitation	41.3 mm (1.6 in)	48 of 100 (Notable)
Arco	United States	Record low maximum temperature	16.1 C (61.0 F)	48 of 100 (Notable)
Lewistown 11 SSE	United States	Record daily precipitation	46.0 mm (1.8 in)	48 of 100 (Notable)

Counts by Type and Timescale

1,845 records

Records set or tied on 18 July 1987 by type: Highest daily maximum 90, Lowest daily maximum 647, Highest daily minimum 161, Lowest daily minimum 319, Heaviest daily rainfall 628.

Records on 18 July 1987 by type
Record type	Records
Highest daily maximum	90
Lowest daily maximum	647
Highest daily minimum	161
Lowest daily minimum	319
Heaviest daily rainfall	628
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 July 1987 by timescale: all-time 9, monthly 150, daily 1,686.

How Much Records Were Beaten By

1,549 broken records

Margins by which the 1,549 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 117.9. Ties are not counted.

Top 20 by Significance

18 July 1987

Top 20 records on 18 July 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 July 1987	Milesville 5 NE, US	all-time rain	164.8 mm (6.5 in)	41.4 mm (1.6 in)	72 years	87 of 100 (Exceptional)
18 July 1987	Anklam, DE	all-time rain	126.2 mm (5.0 in)	46.2 mm (1.8 in)	52 years	84 of 100 (Exceptional)
18 July 1987	McKenzie Rvr Rs, US	monthly rain	68.3 mm (2.7 in)	29.2 mm (1.1 in)	83 years	82 of 100 (Exceptional)
18 July 1987	Salem AP (McNary Field), US	monthly rain	45.7 mm (1.8 in)	17.3 mm (0.7 in)	78 years	75 of 100 (Major)
18 July 1987	Waterloo, US	monthly rain	38.6 mm (1.5 in)	19.5 mm (0.8 in)	48 years	70 of 100 (Major)
18 July 1987	Tarlee, AU	daily rain	32.0 mm (1.3 in)	16.8 mm (0.7 in)	69 years	69 of 100 (Major)
18 July 1987	Ashland, US	daily rain	34.3 mm (1.4 in)	26.7 mm (1.1 in)	69 years	69 of 100 (Major)
18 July 1987	Eugene-Mahlon Sweet Fld, US	monthly rain	61.2 mm (2.4 in)	26.7 mm (1.1 in)	39 years	66 of 100 (Major)
18 July 1987	Williston Sloulin Fld, US	daily rain	85.1 mm (3.4 in)	50.8 mm (2.0 in)	58 years	66 of 100 (Major)
18 July 1987	Ft Benton, US	daily rain	30.2 mm (1.2 in)	22.6 mm (0.9 in)	80 years	65 of 100 (Major)
18 July 1987	Kent, US	daily rain	25.1 mm (1.0 in)	25.1 mm (1.0 in)	64 years	65 of 100 (Major)
18 July 1987	Oksoey Fyr, NO	daily rain	50.0 mm (2.0 in)	28.3 mm (1.1 in)	68 years	64 of 100 (Major)
18 July 1987	Gibson Dam, US	daily rain	50.8 mm (2.0 in)	34.8 mm (1.4 in)	58 years	64 of 100 (Major)
18 July 1987	Gartz/Oder, DE	monthly rain	72.2 mm (2.8 in)	29.5 mm (1.2 in)	32 years	62 of 100 (Major)
18 July 1987	Augusta, US	daily rain	43.2 mm (1.7 in)	31.5 mm (1.2 in)	58 years	62 of 100 (Major)
18 July 1987	Holter Dam, US	daily rain	27.7 mm (1.1 in)	21.1 mm (0.8 in)	76 years	61 of 100 (Major)
18 July 1987	Ft Bidwell, US	daily low max	13.9 C (57.0 F)	7.2 C (13.0 F)	102 years	59 of 100 (Notable)
18 July 1987	Lookout Pt Dam, US	monthly rain	37.1 mm (1.5 in)	18.3 mm (0.7 in)	21 years	59 of 100 (Notable)
18 July 1987	Sandheads, IN	daily rain	188.0 mm (7.4 in)	117.9 mm (4.6 in)	33 years	58 of 100 (Notable)
18 July 1987	Cottage Grove 2E, US	monthly rain	46.7 mm (1.8 in)	14.9 mm (0.6 in)	39 years	58 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 1987

Records set or tied on this calendar date in each year from 1793 to 1987. 1987 had 1,845 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 1987-07-18: 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 2026-10-12 (12 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 20	1,467
20 to 40	63
40 to 60	13
60 to 80	3
80 to 100	2
100 to 120	1