Weather Records on 20 April 1988

1,144 weather records were set or tied worldwide on 20 April 1988. Highest significance: Glendora Fc 287B, US.

Key Facts for 20 April 1988

On 20 April 1988, 1,144 weather records were set or tied at long-record stations worldwide.
322 were record highs and 220 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 62 monthly and 1,079 daily.
Glendora Fc 287B set a daily record precipitation of 49.3 mm (1.9 in) on 20 April 1988.
Across 159 earlier years (1807 to 2026) the same calendar date averaged 458 records.

Record Map

1,144 stations

1,144 station records on 20 April 1988 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 April 1988: highest significance records shown on the map
Station	Country	Type	Value	Significance
Glendora Fc 287B	United States	Record daily precipitation	49.3 mm (1.9 in)	64 of 100 (Major)
Elliott	United States	Record daily precipitation	44.2 mm (1.7 in)	56 of 100 (Notable)
Stockton Fire STN 4	United States	Record daily precipitation	39.9 mm (1.6 in)	56 of 100 (Notable)
Mount Pleasant	Australia	Record daily precipitation	34.0 mm (1.3 in)	55 of 100 (Notable)
Kimball 2NE	United States	Record daily precipitation	63.5 mm (2.5 in)	54 of 100 (Notable)
Santa Lucia	Brazil	Record daily precipitation	58.2 mm (2.3 in)	53 of 100 (Notable)
Nevada City	United States	Record daily precipitation	90.7 mm (3.6 in)	53 of 100 (Notable)
San Diego Miramar NAS	United States	Record daily precipitation	40.9 mm (1.6 in)	53 of 100 (Notable)
Halden	Norway	Record daily precipitation	40.0 mm (1.6 in)	51 of 100 (Notable)
Redelinghuis (Pol)	South Africa	Record daily precipitation	32.0 mm (1.3 in)	51 of 100 (Notable)
Cape Columbine	South Africa	Record daily precipitation	32.0 mm (1.3 in)	50 of 100 (Notable)
Blanchetown	Australia	Record daily precipitation	33.0 mm (1.3 in)	49 of 100 (Notable)
Poway Valley	United States	Record daily precipitation	35.6 mm (1.4 in)	49 of 100 (Notable)
Igsi I Hobol	Norway	Record daily precipitation	25.7 mm (1.0 in)	48 of 100 (Notable)
Auburn	United States	Record daily precipitation	59.7 mm (2.4 in)	48 of 100 (Notable)
La Mesa	United States	Record daily precipitation	30.5 mm (1.2 in)	48 of 100 (Notable)
Visalia	United States	Record daily precipitation	30.0 mm (1.2 in)	48 of 100 (Notable)
Lyngor Fyr	Norway	Record daily precipitation	30.5 mm (1.2 in)	47 of 100 (Notable)
Kilegrend	Norway	Record daily precipitation	38.5 mm (1.5 in)	47 of 100 (Notable)
Tanger	Sweden	Record daily precipitation	36.7 mm (1.4 in)	47 of 100 (Notable)
Fairmont	United States	Record daily precipitation	43.2 mm (1.7 in)	47 of 100 (Notable)
Harry L Englebright Dam	United States	Record daily precipitation	56.1 mm (2.2 in)	47 of 100 (Notable)
Frykfors	Sweden	Record daily precipitation	30.8 mm (1.2 in)	46 of 100 (Notable)
Munkfors	Sweden	Record daily precipitation	32.2 mm (1.3 in)	46 of 100 (Notable)
Friant Government Camp	United States	Record daily precipitation	34.5 mm (1.4 in)	46 of 100 (Notable)
Cobar (Double Gates)	Australia	Record daily precipitation	40.0 mm (1.6 in)	45 of 100 (Notable)
Big Tujunga Dam Fc46	United States	Record daily precipitation	78.2 mm (3.1 in)	45 of 100 (Notable)
San Gabriel Dam Fc425B-E	United States	Record daily precipitation	63.5 mm (2.5 in)	45 of 100 (Notable)
Willows 6 W	United States	Record daily precipitation	34.8 mm (1.4 in)	45 of 100 (Notable)
Biskra	Algeria	Record high minimum temperature	21.6 C (70.9 F)	44 of 100 (Notable)
Lista Fyr	Norway	Record daily precipitation	27.6 mm (1.1 in)	44 of 100 (Notable)
Moss	Norway	Record daily precipitation	25.0 mm (1.0 in)	44 of 100 (Notable)
Dolinsk	Russia	Record daily precipitation	35.5 mm (1.4 in)	44 of 100 (Notable)
Nyhammar	Sweden	Record daily precipitation	27.5 mm (1.1 in)	44 of 100 (Notable)
Porterville	United States	Record daily precipitation	27.7 mm (1.1 in)	44 of 100 (Notable)
Montagu (Pol)	South Africa	Record daily precipitation	29.6 mm (1.2 in)	43 of 100 (Notable)
Djurskog	Sweden	Record daily precipitation	25.1 mm (1.0 in)	43 of 100 (Notable)
Tjarnas	Sweden	Record daily precipitation	33.9 mm (1.3 in)	43 of 100 (Notable)
Challenge Rs	United States	Record daily precipitation	88.6 mm (3.5 in)	43 of 100 (Notable)
Santa Paula	United States	Record daily precipitation	48.3 mm (1.9 in)	43 of 100 (Notable)
Torrance AP	United States	Record daily precipitation	37.3 mm (1.5 in)	43 of 100 (Notable)
Araraquara	Brazil	Record daily precipitation	75.0 mm (3.0 in)	42 of 100 (Notable)
Ensenada	Mexico	Record daily precipitation	31.0 mm (1.2 in)	42 of 100 (Notable)
Armeria	Mexico	Record high maximum temperature	41.1 C (106.0 F)	42 of 100 (Notable)
Lindsay	United States	Record daily precipitation	30.2 mm (1.2 in)	42 of 100 (Notable)
Ojai	United States	Record daily precipitation	45.2 mm (1.8 in)	42 of 100 (Notable)
Huntington Lake	United States	Record daily precipitation	50.8 mm (2.0 in)	41 of 100 (Notable)
Palmer	Australia	Record daily precipitation	29.0 mm (1.1 in)	40 of 100 (Notable)
Oksoey Fyr	Norway	Record daily precipitation	38.9 mm (1.5 in)	40 of 100 (Notable)
Vredenburg (Pol)	South Africa	Record daily precipitation	40.0 mm (1.6 in)	40 of 100 (Notable)
Forshult	Sweden	Record daily precipitation	28.6 mm (1.1 in)	40 of 100 (Notable)
Grycksbo_D	Sweden	Record daily precipitation	33.0 mm (1.3 in)	40 of 100 (Notable)
Luverne	United States	Record low minimum temperature	-9.4 C (15.1 F)	40 of 100 (Notable)
Elandsfontein	South Africa	Record daily precipitation	31.5 mm (1.2 in)	39 of 100 (Notable)
Torsby	Sweden	Record daily precipitation	35.6 mm (1.4 in)	39 of 100 (Notable)
Newhall S Fc32Ce	United States	Record daily precipitation	47.0 mm (1.9 in)	39 of 100 (Notable)
San Gabriel Canyon Ph	United States	Record daily precipitation	40.6 mm (1.6 in)	39 of 100 (Notable)
Hart Mtn Refuge	United States	Record daily snowfall	7.6 cm (3.0 in)	39 of 100 (Notable)
Van Nuys Fc15A	United States	Record daily precipitation	40.6 mm (1.6 in)	38 of 100 (Notable)
Fazenda Belmonte	Brazil	Record daily precipitation	63.4 mm (2.5 in)	37 of 100 (Notable)

Counts by Type and Timescale

1,144 records

Records set or tied on 20 April 1988 by type: Highest daily maximum 111, Lowest daily maximum 66, Highest daily minimum 211, Lowest daily minimum 154, Heaviest daily rainfall 580, Heaviest daily snowfall 15, Deepest snow cover 7.

Records on 20 April 1988 by type
Record type	Records
Highest daily maximum	111
Lowest daily maximum	66
Highest daily minimum	211
Lowest daily minimum	154
Heaviest daily rainfall	580
Heaviest daily snowfall	15
Deepest snow cover	7

Records on 20 April 1988 by timescale: all-time 3, monthly 62, daily 1,079.

How Much Records Were Beaten By

972 broken records

Margins by which the 972 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 178.0. Ties are not counted.

Top 20 by Significance

20 April 1988

Top 20 records on 20 April 1988 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 April 1988	Glendora Fc 287B, US	daily rain	49.3 mm (1.9 in)	34.1 mm (1.3 in)	88 years	64 of 100 (Major)
20 April 1988	Elliott, US	daily rain	44.2 mm (1.7 in)	28.5 mm (1.1 in)	44 years	56 of 100 (Notable)
20 April 1988	Stockton Fire STN 4, US	daily rain	39.9 mm (1.6 in)	25.9 mm (1.0 in)	44 years	56 of 100 (Notable)
20 April 1988	Mount Pleasant, AU	daily rain	34.0 mm (1.3 in)	13.9 mm (0.5 in)	92 years	55 of 100 (Notable)
20 April 1988	Kimball 2NE, US	monthly rain	63.5 mm (2.5 in)	17.0 mm (0.7 in)	45 years	54 of 100 (Notable)
20 April 1988	Santa Lucia, BR	daily rain	58.2 mm (2.3 in)	43.9 mm (1.7 in)	44 years	53 of 100 (Notable)
20 April 1988	Nevada City, US	daily rain	90.7 mm (3.6 in)	50.1 mm (2.0 in)	44 years	53 of 100 (Notable)
20 April 1988	San Diego Miramar NAS, US	daily rain	40.9 mm (1.6 in)	31.0 mm (1.2 in)	31 years	53 of 100 (Notable)
20 April 1988	Halden, NO	monthly rain	40.0 mm (1.6 in)	12.8 mm (0.5 in)	15 years	51 of 100 (Notable)
20 April 1988	Redelinghuis (Pol), ZA	daily rain	32.0 mm (1.3 in)	27.0 mm (1.1 in)	21 years	51 of 100 (Notable)
20 April 1988	Cape Columbine, ZA	daily rain	32.0 mm (1.3 in)	28.0 mm (1.1 in)	21 years	50 of 100 (Notable)
20 April 1988	Blanchetown, AU	daily rain	33.0 mm (1.3 in)	19.5 mm (0.8 in)	27 years	49 of 100 (Notable)
20 April 1988	Poway Valley, US	daily rain	35.6 mm (1.4 in)	20.6 mm (0.8 in)	31 years	49 of 100 (Notable)
20 April 1988	Igsi I Hobol, NO	daily rain	25.7 mm (1.0 in)	20.0 mm (0.8 in)	19 years	48 of 100 (Notable)
20 April 1988	Auburn, US	daily rain	59.7 mm (2.4 in)	29.2 mm (1.1 in)	63 years	48 of 100 (Notable)
20 April 1988	La Mesa, US	daily rain	30.5 mm (1.2 in)	21.1 mm (0.8 in)	31 years	48 of 100 (Notable)
20 April 1988	Visalia, US	daily rain	30.0 mm (1.2 in)	17.0 mm (0.7 in)	44 years	48 of 100 (Notable)
20 April 1988	Lyngor Fyr, NO	daily rain	30.5 mm (1.2 in)	22.3 mm (0.9 in)	15 years	47 of 100 (Notable)
20 April 1988	Kilegrend, NO	daily rain	38.5 mm (1.5 in)	31.9 mm (1.3 in)	15 years	47 of 100 (Notable)
20 April 1988	Tanger, SE	monthly rain	36.7 mm (1.4 in)	10.5 mm (0.4 in)	17 years	47 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

1807 to 1988

Records set or tied on this calendar date in each year from 1807 to 1988. 1988 had 1,144 records.

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

Records on 04-20 in each year
Year	Records
1807	3
1817	1
1838	1
1849	2
1851	1
1852	4
1854	1
1858	1
1860	1
1864	1
1865	3
1868	1
1869	1
1870	1
1872	1
1874	3
1875	4
1876	1
1878	2
1880	2
1881	2
1884	1
1885	1
1886	2
1889	1
1891	2
1892	1
1893	6
1894	8
1895	7
1896	3
1897	6
1898	1
1899	1
1901	8
1902	3
1903	14
1904	31
1905	9
1906	12
1907	18
1908	14
1909	22
1910	25
1911	18
1912	12
1913	19
1914	46
1915	45
1916	19
1917	33
1918	42
1919	17
1920	49
1921	27
1922	40
1923	157
1924	113
1925	169
1926	310
1927	442
1928	212
1929	182
1930	87
1931	255
1932	166
1933	279
1934	384
1935	384
1936	311
1937	427
1938	339
1939	158
1940	519
1941	558
1942	223
1943	670
1944	304
1945	391
1946	395
1947	308
1948	493
1949	477
1950	329
1951	690
1952	552
1953	1,071
1954	377
1955	623
1956	384
1957	730
1958	327
1959	563
1960	472
1961	1,078
1962	487
1963	595
1964	749
1965	724
1966	1,174
1967	864
1968	975
1969	382
1970	948
1971	765
1972	531
1973	982
1974	673
1975	344
1976	661
1977	693
1978	800
1979	495
1980	1,539
1981	706
1982	906
1983	1,844
1984	922
1985	1,140
1986	770
1987	1,447
1988	1,144
1989	1,187
1990	1,495
1991	1,075
1992	1,009
1993	772
1994	756
1995	1,351
1996	970
1997	833
1998	1,490
1999	674
2000	931
2001	752
2002	1,081
2003	758
2004	567
2005	707
2006	859
2007	582
2008	1,110
2009	845
2010	693
2011	1,477
2012	726
2013	1,520
2014	384
2015	702
2016	650
2017	734
2018	1,309
2019	1,019
2020	449
2021	1,215
2022	596
2023	828
2024	673
2025	836
2026	533

Download the Data

Data for records on 1988-04-20: 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	922
25 to 50	36
50 to 75	11
75 to 100	2
100 to 125	0
125 to 150	0
150 to 175	0
175 to 200	1