Weather Records on 18 April 1988

936 weather records were set or tied worldwide on 18 April 1988. Highest significance: McGill, US.

Key Facts for 18 April 1988

On 18 April 1988, 936 weather records were set or tied at long-record stations worldwide.
276 were record highs and 234 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 13 monthly and 919 daily.
McGill set a monthly record daily precipitation of 50.8 mm (2.0 in) on 18 April 1988.
Across 160 earlier years (1793 to 2026) the same calendar date averaged 464 records.

Record Map

936 stations

936 station records on 18 April 1988 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 April 1988: highest significance records shown on the map
Station	Country	Type	Value	Significance
McGill	United States	Record daily precipitation	50.8 mm (2.0 in)	68 of 100 (Major)
Eden (Pirajibu)	Brazil	Record daily precipitation	62.5 mm (2.5 in)	59 of 100 (Notable)
Reserve Rs	United States	Record daily precipitation	42.4 mm (1.7 in)	52 of 100 (Notable)
Anadarko 3 E	United States	Record daily precipitation	38.9 mm (1.5 in)	52 of 100 (Notable)
Servico Social de Menores	Brazil	Record daily precipitation	80.0 mm (3.1 in)	51 of 100 (Notable)
Arneiroz	Brazil	Record daily precipitation	75.0 mm (3.0 in)	49 of 100 (Notable)
Tokushima	Japan	Record daily precipitation	111.5 mm (4.4 in)	48 of 100 (Notable)
Versailles	United States	Record daily precipitation	83.8 mm (3.3 in)	47 of 100 (Notable)
Amity	United States	Record daily precipitation	71.1 mm (2.8 in)	46 of 100 (Notable)
Coimbatore/Peelamed	India	Record daily precipitation	63.0 mm (2.5 in)	45 of 100 (Notable)
Walnut 4S	United States	Record daily precipitation	80.8 mm (3.2 in)	45 of 100 (Notable)
Bonham 3NNE	United States	Record daily precipitation	48.8 mm (1.9 in)	44 of 100 (Notable)
Rankins Pass	South Africa	Record daily precipitation	34.0 mm (1.3 in)	43 of 100 (Notable)
Selby	United States	Record low minimum temperature	-11.1 C (12.0 F)	43 of 100 (Notable)
Paisley	United Kingdom	Record daily precipitation	26.1 mm (1.0 in)	42 of 100 (Notable)
Ft Scott	United States	Record daily precipitation	61.7 mm (2.4 in)	42 of 100 (Notable)
Hatch	United States	Record low maximum temperature	14.4 C (57.9 F)	42 of 100 (Notable)
Waynesboro 2 S	United States	Record daily precipitation	40.6 mm (1.6 in)	41 of 100 (Notable)
Fazenda Sao Geraldo	Brazil	Record daily precipitation	61.5 mm (2.4 in)	40 of 100 (Notable)
Yanji	China	Record daily precipitation	25.8 mm (1.0 in)	40 of 100 (Notable)
Academy 2NE	United States	Record low minimum temperature	-8.9 C (16.0 F)	40 of 100 (Notable)
Madras/Minambakkam	India	Record daily precipitation	37.1 mm (1.5 in)	39 of 100 (Notable)
Donkerhoek (Skl)	South Africa	Record daily precipitation	54.0 mm (2.1 in)	39 of 100 (Notable)
Ashland	United States	Record daily precipitation	38.1 mm (1.5 in)	39 of 100 (Notable)
Ipswich	United States	Record low minimum temperature	-12.2 C (10.0 F)	39 of 100 (Notable)
Mellette 4 W	United States	Record low minimum temperature	-12.8 C (9.0 F)	39 of 100 (Notable)
Antelope	United States	Record daily precipitation	38.6 mm (1.5 in)	39 of 100 (Notable)
Poset	Russia	Record daily precipitation	25.9 mm (1.0 in)	38 of 100 (Notable)
Batesville L&D 1	United States	Record daily precipitation	62.7 mm (2.5 in)	38 of 100 (Notable)
Dardanelle	United States	Record daily precipitation	63.8 mm (2.5 in)	38 of 100 (Notable)
Stephan 2 NW	United States	Record low minimum temperature	-11.1 C (12.0 F)	38 of 100 (Notable)
Ponca City Muni AP	United States	Record daily precipitation	50.8 mm (2.0 in)	38 of 100 (Notable)
Cidra 1 E	Puerto Rico [United States]	Record daily precipitation	83.3 mm (3.3 in)	37 of 100 (Notable)
Sioux Ctr 2 SE	United States	Record low minimum temperature	-5.6 C (21.9 F)	36 of 100 (Notable)
New Ulm 2 SE	United States	Record low minimum temperature	-7.2 C (19.0 F)	36 of 100 (Notable)
Luna Rs	United States	Record daily precipitation	32.3 mm (1.3 in)	36 of 100 (Notable)
Leola	United States	Record low minimum temperature	-10.0 C (14.0 F)	36 of 100 (Notable)
Denau	Uzbekistan	Record daily precipitation	26.5 mm (1.0 in)	36 of 100 (Notable)
Pinhalzinho	Brazil	Record daily precipitation	66.0 mm (2.6 in)	35 of 100 (Notable)
Eskdalemuir	United Kingdom	Record daily precipitation	35.7 mm (1.4 in)	35 of 100 (Notable)
Poplar Bluff	United States	Record daily precipitation	38.4 mm (1.5 in)	35 of 100 (Notable)
Erick	United States	Record daily precipitation	37.3 mm (1.5 in)	35 of 100 (Notable)
Bolivar Wtr Wks	United States	Record daily precipitation	37.8 mm (1.5 in)	35 of 100 (Notable)
Iguape	Brazil	Record daily precipitation	66.8 mm (2.6 in)	34 of 100 (Routine)
Blackwell 1SSW	United States	Record daily precipitation	41.9 mm (1.6 in)	34 of 100 (Routine)
Newkirk 5NE	United States	Record daily precipitation	62.2 mm (2.4 in)	34 of 100 (Routine)
Muyinga	Burundi	Record daily precipitation	101.1 mm (4.0 in)	33 of 100 (Routine)
Dzhusaly	Kazakhstan	Record daily precipitation	82.0 mm (3.2 in)	33 of 100 (Routine)
Kuilput	South Africa	Record daily precipitation	37.5 mm (1.5 in)	33 of 100 (Routine)
Helena	United States	Record daily precipitation	57.2 mm (2.3 in)	33 of 100 (Routine)
Coldwater	United States	Record daily precipitation	50.0 mm (2.0 in)	33 of 100 (Routine)
Mora	United States	Record low minimum temperature	-15.6 C (3.9 F)	33 of 100 (Routine)
Purdum	United States	Record low minimum temperature	-9.4 C (15.1 F)	33 of 100 (Routine)
Reserve Rs	United States	Record low maximum temperature	3.3 C (37.9 F)	33 of 100 (Routine)
Greenville Kgvl Radio	United States	Record daily precipitation	54.9 mm (2.2 in)	33 of 100 (Routine)
Tortosa - Observatorio del Ebr	Spain	Record high minimum temperature	14.3 C (57.7 F)	32 of 100 (Routine)
Douglas	United States	Record daily precipitation	64.8 mm (2.6 in)	32 of 100 (Routine)
Lumber City	United States	Record daily precipitation	43.2 mm (1.7 in)	32 of 100 (Routine)
Postville	United States	Record low minimum temperature	-6.7 C (19.9 F)	32 of 100 (Routine)
Toronto Lake	United States	Record daily precipitation	61.5 mm (2.4 in)	32 of 100 (Routine)

Counts by Type and Timescale

936 records

Records set or tied on 18 April 1988 by type: Highest daily maximum 100, Lowest daily maximum 88, Highest daily minimum 176, Lowest daily minimum 146, Heaviest daily rainfall 415, Heaviest daily snowfall 7, Deepest snow cover 4.

Records on 18 April 1988 by type
Record type	Records
Highest daily maximum	100
Lowest daily maximum	88
Highest daily minimum	176
Lowest daily minimum	146
Heaviest daily rainfall	415
Heaviest daily snowfall	7
Deepest snow cover	4

Records on 18 April 1988 by timescale: all-time 4, monthly 13, daily 919.

How Much Records Were Beaten By

802 broken records

Margins by which the 802 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 152.0. Ties are not counted.

Top 20 by Significance

18 April 1988

Top 20 records on 18 April 1988 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 April 1988	McGill, US	monthly rain	50.8 mm (2.0 in)	24.9 mm (1.0 in)	30 years	68 of 100 (Major)
18 April 1988	Eden (Pirajibu), BR	daily rain	62.5 mm (2.5 in)	53.6 mm (2.1 in)	47 years	59 of 100 (Notable)
18 April 1988	Reserve Rs, US	monthly rain	42.4 mm (1.7 in)	13.2 mm (0.5 in)	30 years	52 of 100 (Notable)
18 April 1988	Anadarko 3 E, US	daily rain	38.9 mm (1.5 in)	19.8 mm (0.8 in)	91 years	52 of 100 (Notable)
18 April 1988	Servico Social de Menores, BR	daily rain	80.0 mm (3.1 in)	74.5 mm (2.9 in)	24 years	51 of 100 (Notable)
18 April 1988	Arneiroz, BR	daily rain	75.0 mm (3.0 in)	48.5 mm (1.9 in)	21 years	49 of 100 (Notable)
18 April 1988	Tokushima, JP	daily rain	111.5 mm (4.4 in)	88.0 mm (3.5 in)	18 years	48 of 100 (Notable)
18 April 1988	Versailles, US	monthly rain	83.8 mm (3.3 in)	5.1 mm (0.20 in)	82 years	47 of 100 (Notable)
18 April 1988	Amity, US	daily rain	71.1 mm (2.8 in)	26.6 mm (1.0 in)	77 years	46 of 100 (Notable)
18 April 1988	Coimbatore/Peelamed, IN	daily rain	63.0 mm (2.5 in)	49.0 mm (1.9 in)	35 years	45 of 100 (Notable)
18 April 1988	Walnut 4S, US	daily rain	80.8 mm (3.2 in)	48.8 mm (1.9 in)	19 years	45 of 100 (Notable)
18 April 1988	Bonham 3NNE, US	daily rain	48.8 mm (1.9 in)	24.9 mm (1.0 in)	74 years	44 of 100 (Notable)
18 April 1988	Rankins Pass, ZA	daily rain	34.0 mm (1.3 in)	23.1 mm (0.9 in)	55 years	43 of 100 (Notable)
18 April 1988	Selby, US	daily low min	-11.1 C (12.0 F)	6.1 C (11.0 F)	78 years	43 of 100 (Notable)
18 April 1988	Paisley, GB	daily rain	26.1 mm (1.0 in)	10.4 mm (0.4 in)	44 years	42 of 100 (Notable)
18 April 1988	Ft Scott, US	daily rain	61.7 mm (2.4 in)	41.1 mm (1.6 in)	12 years	42 of 100 (Notable)
18 April 1988	Hatch, US	daily low max	14.4 C (57.9 F)	2.3 C (4.1 F)	93 years	42 of 100 (Notable)
18 April 1988	Waynesboro 2 S, US	daily rain	40.6 mm (1.6 in)	12.7 mm (0.5 in)	78 years	41 of 100 (Notable)
18 April 1988	Fazenda Sao Geraldo, BR	daily rain	61.5 mm (2.4 in)	39.1 mm (1.5 in)	30 years	40 of 100 (Notable)
18 April 1988	Yanji, CN	daily rain	25.8 mm (1.0 in)	13.6 mm (0.5 in)	34 years	40 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 1988

Records set or tied on this calendar date in each year from 1793 to 1988. 1988 had 936 records.

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

Records on 04-18 in each year
Year	Records
1793	1
1807	2
1815	1
1838	1
1847	1
1849	1
1851	1
1852	3
1854	3
1855	1
1865	4
1867	1
1870	1
1871	1
1875	4
1877	2
1878	1
1879	3
1880	2
1884	2
1886	2
1887	3
1888	1
1889	1
1890	2
1891	1
1892	3
1893	5
1894	7
1895	2
1896	3
1897	5
1898	8
1899	2
1900	2
1901	6
1902	5
1903	11
1904	9
1905	12
1906	18
1907	17
1908	37
1909	19
1910	19
1911	25
1912	21
1913	26
1914	38
1915	31
1916	22
1917	40
1918	76
1919	16
1920	64
1921	58
1922	85
1923	107
1924	101
1925	154
1926	322
1927	391
1928	323
1929	126
1930	113
1931	173
1932	326
1933	211
1934	391
1935	264
1936	483
1937	477
1938	711
1939	525
1940	322
1941	496
1942	287
1943	298
1944	259
1945	371
1946	357
1947	444
1948	932
1949	345
1950	244
1951	658
1952	536
1953	1,322
1954	442
1955	817
1956	467
1957	629
1958	370
1959	468
1960	320
1961	520
1962	484
1963	662
1964	449
1965	363
1966	776
1967	882
1968	867
1969	795
1970	771
1971	1,106
1972	470
1973	953
1974	326
1975	751
1976	1,309
1977	717
1978	803
1979	841
1980	842
1981	708
1982	616
1983	2,082
1984	625
1985	1,119
1986	622
1987	1,068
1988	936
1989	625
1990	1,368
1991	780
1992	702
1993	730
1994	1,218
1995	1,601
1996	826
1997	1,256
1998	1,011
1999	1,428
2000	912
2001	1,487
2002	2,084
2003	969
2004	846
2005	622
2006	1,262
2007	675
2008	913
2009	624
2010	478
2011	1,122
2012	744
2013	2,509
2014	534
2015	519
2016	973
2017	588
2018	1,202
2019	601
2020	770
2021	592
2022	1,013
2023	739
2024	641
2025	997
2026	498

Download the Data

Data for records on 1988-04-18: 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 20	746
20 to 40	39
40 to 60	10
60 to 80	4
80 to 100	2
100 to 120	0
120 to 140	0
140 to 160	1