Weather Records on 18 July 1989

1,233 weather records were set or tied worldwide on 18 July 1989. Highest significance: Epping, US.

Key Facts for 18 July 1989

On 18 July 1989, 1,233 weather records were set or tied at long-record stations worldwide.
523 were record highs and 358 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 44 monthly and 1,185 daily.
Epping set a monthly record daily precipitation of 101.6 mm (4.0 in) on 18 July 1989.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 457 records.

Record Map

1,233 stations

1,233 station records on 18 July 1989 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 July 1989: highest significance records shown on the map
Station	Country	Type	Value	Significance
Epping	United States	Record daily precipitation	101.6 mm (4.0 in)	70 of 100 (Major)
Hyannis	United States	Record daily precipitation	61.0 mm (2.4 in)	66 of 100 (Major)
Nizhny-Chir	Russia	Record daily precipitation	51.7 mm (2.0 in)	60 of 100 (Major)
Fairmont	United States	Record daily precipitation	95.8 mm (3.8 in)	60 of 100 (Major)
Bombala (Therry Street)	Australia	Record daily precipitation	43.4 mm (1.7 in)	58 of 100 (Notable)
Lisbon	United States	Record daily precipitation	50.0 mm (2.0 in)	58 of 100 (Notable)
Brookings 2 NE	United States	Record daily precipitation	69.9 mm (2.8 in)	54 of 100 (Notable)
Umba	Russia	Record daily precipitation	47.4 mm (1.9 in)	53 of 100 (Notable)
Mt Ida 3 SE	United States	Record low maximum temperature	22.2 C (72.0 F)	53 of 100 (Notable)
Rochester	United States	Record daily precipitation	31.0 mm (1.2 in)	52 of 100 (Notable)
Tilden 4 SSE	United States	Record low minimum temperature	17.2 C (63.0 F)	52 of 100 (Notable)
Delegate Post Office	Australia	Record daily precipitation	36.0 mm (1.4 in)	50 of 100 (Notable)
Yingkou	China	Record daily precipitation	146.5 mm (5.8 in)	49 of 100 (Notable)
Kotel'nikovo	Russia	Record daily precipitation	33.8 mm (1.3 in)	49 of 100 (Notable)
Blagodarnyj	Russia	Record daily precipitation	51.0 mm (2.0 in)	49 of 100 (Notable)
Artichoke Lake 1 E	United States	Record daily precipitation	58.9 mm (2.3 in)	49 of 100 (Notable)
Lottering (Bos)	South Africa	Record daily precipitation	82.0 mm (3.2 in)	48 of 100 (Notable)
El Paso de Iritu	Mexico	Record low minimum temperature	6.7 C (44.1 F)	47 of 100 (Notable)
Qiqihar	China	Record daily precipitation	54.2 mm (2.1 in)	46 of 100 (Notable)
Onega	Russia	Record daily precipitation	35.5 mm (1.4 in)	46 of 100 (Notable)
Inverell Comparison	Australia	Record low maximum temperature	7.2 C (45.0 F)	45 of 100 (Notable)
Club Terrace	Australia	Record daily precipitation	84.2 mm (3.3 in)	45 of 100 (Notable)
Penza	Russia	Record daily precipitation	51.0 mm (2.0 in)	45 of 100 (Notable)
Moskalvo	Russia	Record daily precipitation	57.8 mm (2.3 in)	45 of 100 (Notable)
Presa Jocoque	Mexico	Record high minimum temperature	19.4 C (66.9 F)	44 of 100 (Notable)
Kajlastuj	Russia	Record daily precipitation	51.7 mm (2.0 in)	44 of 100 (Notable)
Hankey (Pol)	South Africa	Record daily precipitation	28.0 mm (1.1 in)	44 of 100 (Notable)
Durango	United States	Record high maximum temperature	37.8 C (100.0 F)	44 of 100 (Notable)
Milan 1NW	United States	Record daily precipitation	58.7 mm (2.3 in)	44 of 100 (Notable)
Mikkeli Lentoasema	Finland	Record daily precipitation	28.5 mm (1.1 in)	43 of 100 (Notable)
Hankinson	United States	Record daily precipitation	54.1 mm (2.1 in)	43 of 100 (Notable)
Suomussalmi Kk	Finland	Record daily precipitation	27.6 mm (1.1 in)	42 of 100 (Notable)
Nikolaevsk-Na-Amure	Russia	Record daily precipitation	29.2 mm (1.1 in)	42 of 100 (Notable)
Ozark	United States	Record low maximum temperature	23.3 C (73.9 F)	42 of 100 (Notable)
Cawker City	United States	Record daily precipitation	71.9 mm (2.8 in)	42 of 100 (Notable)
Corinth 5 WSW	United States	Record daily precipitation	43.2 mm (1.7 in)	42 of 100 (Notable)
Rudnya	Russia	Record daily precipitation	27.0 mm (1.1 in)	41 of 100 (Notable)
Chanthaburi	Thailand	Record high maximum temperature	37.1 C (98.8 F)	41 of 100 (Notable)
Skiatook	United States	Record daily precipitation	70.1 mm (2.8 in)	41 of 100 (Notable)
San Pedro	Mexico	Record low minimum temperature	17.2 C (63.0 F)	40 of 100 (Notable)
Koumac (Nlle-Caledo	New Caledonia [France]	Record daily precipitation	534.0 mm (21.0 in)	40 of 100 (Notable)
Svetlograd	Russia	Record daily precipitation	31.0 mm (1.2 in)	40 of 100 (Notable)
Marshall	United States	Record low maximum temperature	23.3 C (73.9 F)	40 of 100 (Notable)
Northwood	United States	Record daily precipitation	53.8 mm (2.1 in)	40 of 100 (Notable)
Tarboro 1 S	United States	Record daily precipitation	63.2 mm (2.5 in)	40 of 100 (Notable)
Hana AP 355	United States	Record daily precipitation	50.8 mm (2.0 in)	40 of 100 (Notable)
Bukalong Station	Australia	Record daily precipitation	35.7 mm (1.4 in)	39 of 100 (Notable)
Bonang	Australia	Record daily precipitation	44.2 mm (1.7 in)	39 of 100 (Notable)
Gabo Island Lighthouse	Australia	Record daily precipitation	52.6 mm (2.1 in)	39 of 100 (Notable)
Ahtari Myllymaki	Finland	Record daily precipitation	31.6 mm (1.2 in)	39 of 100 (Notable)
Baia Mare	Romania	Record low minimum temperature	7.0 C (44.6 F)	39 of 100 (Notable)
Bloukrans (Bos)	South Africa	Record daily precipitation	55.5 mm (2.2 in)	39 of 100 (Notable)
Nikolaev	Ukraine	Record low minimum temperature	11.8 C (53.2 F)	39 of 100 (Notable)
Conway	United States	Record low maximum temperature	26.1 C (79.0 F)	39 of 100 (Notable)
Silverton	United States	Record low minimum temperature	-2.8 C (27.0 F)	39 of 100 (Notable)
Plymouth-Kingston	United States	Record daily precipitation	46.2 mm (1.8 in)	39 of 100 (Notable)
Carthage Wtp	United States	Record daily precipitation	76.5 mm (3.0 in)	39 of 100 (Notable)
Tarboro 1 S	United States	Record low maximum temperature	25.0 C (77.0 F)	39 of 100 (Notable)
Tahlequah	United States	Record daily precipitation	71.6 mm (2.8 in)	39 of 100 (Notable)
Njandoma	Russia	Record daily precipitation	36.0 mm (1.4 in)	38 of 100 (Notable)

Counts by Type and Timescale

1,233 records

Records set or tied on 18 July 1989 by type: Highest daily maximum 303, Lowest daily maximum 233, Highest daily minimum 220, Lowest daily minimum 125, Heaviest daily rainfall 352.

Records on 18 July 1989 by type
Record type	Records
Highest daily maximum	303
Lowest daily maximum	233
Highest daily minimum	220
Lowest daily minimum	125
Heaviest daily rainfall	352
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 July 1989 by timescale: all-time 4, monthly 44, daily 1,185.

How Much Records Were Beaten By

944 broken records

Margins by which the 944 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 480.0. Ties are not counted.

Top 20 by Significance

18 July 1989

Top 20 records on 18 July 1989 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 July 1989	Epping, US	monthly rain	101.6 mm (4.0 in)	42.9 mm (1.7 in)	43 years	70 of 100 (Major)
18 July 1989	Hyannis, US	daily rain	61.0 mm (2.4 in)	51.3 mm (2.0 in)	76 years	66 of 100 (Major)
18 July 1989	Nizhny-Chir, RU	daily rain	51.7 mm (2.0 in)	44.2 mm (1.7 in)	52 years	60 of 100 (Major)
18 July 1989	Fairmont, US	daily rain	95.8 mm (3.8 in)	61.8 mm (2.4 in)	39 years	60 of 100 (Major)
18 July 1989	Bombala (Therry Street), AU	daily rain	43.4 mm (1.7 in)	34.0 mm (1.3 in)	42 years	58 of 100 (Notable)
18 July 1989	Lisbon, US	daily rain	50.0 mm (2.0 in)	29.7 mm (1.2 in)	84 years	58 of 100 (Notable)
18 July 1989	Brookings 2 NE, US	daily rain	69.9 mm (2.8 in)	41.5 mm (1.6 in)	19 years	54 of 100 (Notable)
18 July 1989	Umba, RU	daily rain	47.4 mm (1.9 in)	39.2 mm (1.5 in)	27 years	53 of 100 (Notable)
18 July 1989	Mt Ida 3 SE, US	daily low max	22.2 C (72.0 F)	5.0 C (9.0 F)	94 years	53 of 100 (Notable)
18 July 1989	Rochester, US	daily rain	31.0 mm (1.2 in)	21.6 mm (0.9 in)	88 years	52 of 100 (Notable)
18 July 1989	Tilden 4 SSE, US	daily low min	17.2 C (63.0 F)	2.8 C (5.0 F)	84 years	52 of 100 (Notable)
18 July 1989	Delegate Post Office, AU	daily rain	36.0 mm (1.4 in)	20.8 mm (0.8 in)	56 years	50 of 100 (Notable)
18 July 1989	Yingkou, CN	daily rain	146.5 mm (5.8 in)	112.0 mm (4.4 in)	23 years	49 of 100 (Notable)
18 July 1989	Kotel'nikovo, RU	daily rain	33.8 mm (1.3 in)	19.8 mm (0.8 in)	52 years	49 of 100 (Notable)
18 July 1989	Blagodarnyj, RU	daily rain	51.0 mm (2.0 in)	27.3 mm (1.1 in)	42 years	49 of 100 (Notable)
18 July 1989	Artichoke Lake 1 E, US	daily rain	58.9 mm (2.3 in)	38.3 mm (1.5 in)	46 years	49 of 100 (Notable)
18 July 1989	Lottering (Bos), ZA	daily rain	82.0 mm (3.2 in)	30.2 mm (1.2 in)	67 years	48 of 100 (Notable)
18 July 1989	El Paso de Iritu, MX	daily low min	6.7 C (44.1 F)	8.3 C (14.9 F)	27 years	47 of 100 (Notable)
18 July 1989	Qiqihar, CN	daily rain	54.2 mm (2.1 in)	47.0 mm (1.9 in)	22 years	46 of 100 (Notable)
18 July 1989	Onega, RU	daily rain	35.5 mm (1.4 in)	19.5 mm (0.8 in)	35 years	46 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 1989

Records set or tied on this calendar date in each year from 1793 to 1989. 1989 had 1,233 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	921
2014	1,348
2015	745
2016	609
2017	426
2018	699
2019	548
2020	361
2021	676
2022	1,071
2023	867
2024	581
2025	779
2026	806

Download the Data

Data for records on 1989-07-18: 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 2026-10-17 (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).

Histogram of margins by which records were beaten on 18 July 1989
Margin	Records
0 to 100	942
100 to 200	1
200 to 300	0
300 to 400	0
400 to 500	1