Weather Records on 20 April 1991

1,075 weather records were set or tied worldwide on 20 April 1991. Highest significance: Elizabeth City, US.

Key Facts for 20 April 1991

On 20 April 1991, 1,075 weather records were set or tied at long-record stations worldwide.
298 were record highs and 491 were record lows, counting maximum and minimum temperature.
By timescale, 6 were all-time records, 38 monthly and 1,031 daily.
Elizabeth City set a monthly record daily precipitation of 118.1 mm (4.6 in) on 20 April 1991.
Across 159 earlier years (1807 to 2026) the same calendar date averaged 458 records.

Record Map

1,075 stations

1,075 station records on 20 April 1991 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 April 1991: highest significance records shown on the map
Station	Country	Type	Value	Significance
Elizabeth City	United States	Record daily precipitation	118.1 mm (4.6 in)	70 of 100 (Major)
Suffolk Lake Kilby	United States	Record daily precipitation	109.7 mm (4.3 in)	64 of 100 (Major)
Lake Placid 2 S	United States	Record daily precipitation	34.3 mm (1.4 in)	57 of 100 (Notable)
Norfolk Intl AP	United States	Record daily precipitation	148.8 mm (5.9 in)	57 of 100 (Notable)
Langley AFB	United States	Record daily precipitation	71.1 mm (2.8 in)	56 of 100 (Notable)
Norfolk NAS	United States	Record daily precipitation	135.4 mm (5.3 in)	56 of 100 (Notable)
Nikolaevskoe	Russia	Record daily precipitation	33.5 mm (1.3 in)	55 of 100 (Notable)
Nicosia	Cyprus	Record high minimum temperature	19.2 C (66.6 F)	53 of 100 (Notable)
Sandusky	United States	Record daily precipitation	42.7 mm (1.7 in)	52 of 100 (Notable)
Manorkill	United States	Record daily precipitation	52.6 mm (2.1 in)	51 of 100 (Notable)
Ogdensburg 4 NE	United States	Record daily precipitation	29.2 mm (1.1 in)	51 of 100 (Notable)
Kinston 7 SE	United States	Record daily precipitation	115.6 mm (4.6 in)	49 of 100 (Notable)
Scotland Neck	United States	Record daily precipitation	61.0 mm (2.4 in)	48 of 100 (Notable)
Orebro	Sweden	Record low minimum temperature	-9.0 C (15.8 F)	46 of 100 (Notable)
Monroe	United States	Record daily precipitation	52.3 mm (2.1 in)	46 of 100 (Notable)
Oceana NAS	United States	Record daily precipitation	77.7 mm (3.1 in)	46 of 100 (Notable)
Mystic Lake	United States	Record snow depth	114.3 cm (45.0 in)	45 of 100 (Notable)
Red Lodge	United States	Record snow depth	160.0 cm (63.0 in)	45 of 100 (Notable)
Rio Novo	Brazil	Record daily precipitation	71.6 mm (2.8 in)	44 of 100 (Notable)
Altgeringswalde	Germany	Record snow depth	12.0 cm (4.7 in)	44 of 100 (Notable)
Van Wert 1 S	United States	Record daily precipitation	50.8 mm (2.0 in)	44 of 100 (Notable)
Dillon	United States	Record daily precipitation	68.3 mm (2.7 in)	44 of 100 (Notable)
Gorlitz	Germany	Record low maximum temperature	2.1 C (35.8 F)	42 of 100 (Notable)
Chemnitz	Germany	Record low maximum temperature	0.5 C (32.9 F)	42 of 100 (Notable)
Ixhuatlan del Cafe	Mexico	Record daily precipitation	50.3 mm (2.0 in)	41 of 100 (Notable)
Valenca	Brazil	Record daily precipitation	52.8 mm (2.1 in)	40 of 100 (Notable)
East London	South Africa	Record high minimum temperature	26.5 C (79.7 F)	40 of 100 (Notable)
Graham 2 ENE	United States	Record daily precipitation	29.7 mm (1.2 in)	39 of 100 (Notable)
Lewiston	United States	Record daily precipitation	53.8 mm (2.1 in)	39 of 100 (Notable)
Pentagna	Brazil	Record daily precipitation	34.0 mm (1.3 in)	38 of 100 (Notable)
Potirendaba	Brazil	Record daily precipitation	55.4 mm (2.2 in)	38 of 100 (Notable)
Lebanon 2W	United States	Record low maximum temperature	8.9 C (48.0 F)	38 of 100 (Notable)
Plymouth 5 E	United States	Record daily precipitation	46.2 mm (1.8 in)	38 of 100 (Notable)
Washington Wwtp 4W	United States	Record daily precipitation	36.8 mm (1.4 in)	38 of 100 (Notable)
Bowling Green Wwtp	United States	Record daily precipitation	48.3 mm (1.9 in)	38 of 100 (Notable)
Saluda	United States	Record daily precipitation	29.2 mm (1.1 in)	38 of 100 (Notable)
Monroeville 1 NW	United States	Record daily precipitation	45.2 mm (1.8 in)	37 of 100 (Notable)
Palmerville	Australia	Record low maximum temperature	25.0 C (77.0 F)	36 of 100 (Notable)
Rocky Mt 8 ESE	United States	Record daily precipitation	54.9 mm (2.2 in)	36 of 100 (Notable)
Fumaca	Brazil	Record daily precipitation	77.8 mm (3.1 in)	35 of 100 (Notable)
Wrixum/Fohr	Germany	Record low minimum temperature	-2.8 C (27.0 F)	35 of 100 (Notable)
St. Petersburg	Russia	Record daily precipitation	29.1 mm (1.1 in)	34 of 100 (Routine)
Mtn Grove 2 N	United States	Record low maximum temperature	10.0 C (50.0 F)	34 of 100 (Routine)
Vinita 2 N	United States	Record low maximum temperature	12.8 C (55.0 F)	34 of 100 (Routine)
Key West NAS	United States	Record daily precipitation	50.8 mm (2.0 in)	34 of 100 (Routine)
Northam	Australia	Record high minimum temperature	18.5 C (65.3 F)	33 of 100 (Routine)
Muenster	Germany	Record low minimum temperature	-3.5 C (25.7 F)	33 of 100 (Routine)
Defiance	United States	Record daily precipitation	41.1 mm (1.6 in)	33 of 100 (Routine)
Put-In-Bay	United States	Record daily precipitation	43.7 mm (1.7 in)	33 of 100 (Routine)
Milesovka	Czech Republic	Record low maximum temperature	-2.1 C (28.2 F)	32 of 100 (Routine)
Fichtelberg	Germany	Record low maximum temperature	-5.7 C (21.7 F)	32 of 100 (Routine)
Celaya (Smn)	Mexico	Record high maximum temperature	38.3 C (100.9 F)	32 of 100 (Routine)
Maastricht	Netherlands	Record low minimum temperature	-2.3 C (27.9 F)	32 of 100 (Routine)
East London	South Africa	Record high maximum temperature	37.8 C (100.0 F)	32 of 100 (Routine)
Glen St Mary 1 W	United States	Record daily precipitation	63.5 mm (2.5 in)	32 of 100 (Routine)
Ibia	Brazil	Record daily precipitation	56.7 mm (2.2 in)	31 of 100 (Routine)
Ribeirao de Sao Joaquim	Brazil	Record daily precipitation	39.9 mm (1.6 in)	31 of 100 (Routine)
Perpignan	France	Record low maximum temperature	10.9 C (51.6 F)	31 of 100 (Routine)
Irapuato	Mexico	Record high maximum temperature	36.7 C (98.1 F)	31 of 100 (Routine)
Acatitan	Mexico	Record high maximum temperature	45.0 C (113.0 F)	31 of 100 (Routine)

Counts by Type and Timescale

1,075 records

Records set or tied on 20 April 1991 by type: Highest daily maximum 132, Lowest daily maximum 266, Highest daily minimum 166, Lowest daily minimum 225, Heaviest daily rainfall 221, Heaviest daily snowfall 1, Deepest snow cover 64.

Records on 20 April 1991 by type
Record type	Records
Highest daily maximum	132
Lowest daily maximum	266
Highest daily minimum	166
Lowest daily minimum	225
Heaviest daily rainfall	221
Heaviest daily snowfall	1
Deepest snow cover	64

Records on 20 April 1991 by timescale: all-time 6, monthly 38, daily 1,031.

How Much Records Were Beaten By

890 broken records

Margins by which the 890 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 686.0. Ties are not counted.

Top 20 by Significance

20 April 1991

Top 20 records on 20 April 1991 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 April 1991	Elizabeth City, US	monthly rain	118.1 mm (4.6 in)	36.8 mm (1.4 in)	73 years	70 of 100 (Major)
20 April 1991	Suffolk Lake Kilby, US	monthly rain	109.7 mm (4.3 in)	50.8 mm (2.0 in)	35 years	64 of 100 (Major)
20 April 1991	Lake Placid 2 S, US	daily rain	34.3 mm (1.4 in)	15.8 mm (0.6 in)	73 years	57 of 100 (Notable)
20 April 1991	Norfolk Intl AP, US	monthly rain	148.8 mm (5.9 in)	80.7 mm (3.2 in)	12 years	57 of 100 (Notable)
20 April 1991	Langley AFB, US	daily rain	71.1 mm (2.8 in)	60.4 mm (2.4 in)	32 years	56 of 100 (Notable)
20 April 1991	Norfolk NAS, US	monthly rain	135.4 mm (5.3 in)	67.3 mm (2.6 in)	7 years	56 of 100 (Notable)
20 April 1991	Nikolaevskoe, RU	daily rain	33.5 mm (1.3 in)	25.2 mm (1.0 in)	34 years	55 of 100 (Notable)
20 April 1991	Nicosia, CY	daily high min	19.2 C (66.6 F)	4.2 C (7.6 F)	101 years	53 of 100 (Notable)
20 April 1991	Sandusky, US	daily rain	42.7 mm (1.7 in)	24.7 mm (1.0 in)	50 years	52 of 100 (Notable)
20 April 1991	Manorkill, US	daily rain	52.6 mm (2.1 in)	28.2 mm (1.1 in)	40 years	51 of 100 (Notable)
20 April 1991	Ogdensburg 4 NE, US	daily rain	29.2 mm (1.1 in)	11.4 mm (0.4 in)	89 years	51 of 100 (Notable)
20 April 1991	Kinston 7 SE, US	monthly rain	115.6 mm (4.6 in)	34.3 mm (1.4 in)	18 years	49 of 100 (Notable)
20 April 1991	Scotland Neck, US	daily rain	61.0 mm (2.4 in)	10.2 mm (0.4 in)	110 years	48 of 100 (Notable)
20 April 1991	Orebro, SE	daily low min	-9.0 C (15.8 F)	4.0 C (7.2 F)	82 years	46 of 100 (Notable)
20 April 1991	Monroe, US	daily rain	52.3 mm (2.1 in)	22.6 mm (0.9 in)	44 years	46 of 100 (Notable)
20 April 1991	Oceana NAS, US	daily rain	77.7 mm (3.1 in)	66.0 mm (2.6 in)	9 years	46 of 100 (Notable)
20 April 1991	Mystic Lake, US	daily snow depth	114.3 cm (45.0 in)	63.5 cm (25.0 in)	17 years	45 of 100 (Notable)
20 April 1991	Red Lodge, US	daily snow depth	160.0 cm (63.0 in)	68.6 cm (27.0 in)	17 years	45 of 100 (Notable)
20 April 1991	Rio Novo, BR	daily rain	71.6 mm (2.8 in)	55.4 mm (2.2 in)	1 year	44 of 100 (Notable)
20 April 1991	Altgeringswalde, DE	daily snow depth	12.0 cm (4.7 in)	12.0 cm (4.7 in)	37 years	44 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 1991

Records set or tied on this calendar date in each year from 1807 to 1991. 1991 had 1,075 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 1991-04-20: 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 100	885
100 to 200	3
200 to 300	0
300 to 400	0
400 to 500	0
500 to 600	0
600 to 700	2