Weather Records on 21 April 2020

397 weather records were set or tied worldwide on 21 April 2020. Highest significance: Lankaran, AZ.

Key Facts for 21 April 2020

On 21 April 2020, 397 weather records were set or tied at long-record stations worldwide.
214 were record highs and 108 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 7 monthly and 388 daily.
Lankaran set a daily record precipitation of 99.6 mm (3.9 in) on 21 April 2020.
Across 159 earlier years (1793 to 2026) the same calendar date averaged 463 records.

Record Map

397 stations

397 station records on 21 April 2020 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 April 2020: highest significance records shown on the map
Station	Country	Type	Value	Significance
Lankaran	Azerbaijan	Record daily precipitation	99.6 mm (3.9 in)	76 of 100 (Major)
Perpignan	France	Record daily precipitation	90.5 mm (3.6 in)	75 of 100 (Major)
Barcelona/Aeropuerto	Spain	Record daily precipitation	73.3 mm (2.9 in)	56 of 100 (Notable)
Kahuku 912	United States	Record high maximum temperature	30.0 C (86.0 F)	53 of 100 (Notable)
Kirsanov	Russia	Record daily precipitation	47.0 mm (1.9 in)	52 of 100 (Notable)
Multan Intl	Pakistan	Record daily precipitation	38.1 mm (1.5 in)	49 of 100 (Notable)
Cagliari	Italy	Record daily precipitation	26.4 mm (1.0 in)	48 of 100 (Notable)
Girona/Costa Brava	Spain	Record daily precipitation	63.6 mm (2.5 in)	47 of 100 (Notable)
Honavar	India	Record daily precipitation	35.3 mm (1.4 in)	46 of 100 (Notable)
Mt Vernon	United States	Record daily precipitation	71.1 mm (2.8 in)	45 of 100 (Notable)
Zerdevka	Russia	Record daily precipitation	42.9 mm (1.7 in)	44 of 100 (Notable)
San Sebastian - Igueldo	Spain	Record daily precipitation	44.3 mm (1.7 in)	44 of 100 (Notable)
Turgaj	Kazakhstan	Record high maximum temperature	27.9 C (82.2 F)	43 of 100 (Notable)
Houghton Lake 6 WSW	United States	Record daily snowfall	7.6 cm (3.0 in)	43 of 100 (Notable)
Dutch Harbor	United States	Record high minimum temperature	5.0 C (41.0 F)	42 of 100 (Notable)
Talladega	United States	Record high minimum temperature	20.0 C (68.0 F)	41 of 100 (Notable)
Montelimar	France	Record high minimum temperature	15.2 C (59.4 F)	39 of 100 (Notable)
Montpellier-Aeroport	France	Record daily precipitation	28.1 mm (1.1 in)	39 of 100 (Notable)
Calcutta/Dum Dum	India	Record low maximum temperature	27.9 C (82.2 F)	38 of 100 (Notable)
Collegeville St John's	United States	Record low minimum temperature	-6.7 C (19.9 F)	36 of 100 (Notable)
Elliston	United States	Record high minimum temperature	5.0 C (41.0 F)	36 of 100 (Notable)
Alpena Co Rgnl AP	United States	Record low maximum temperature	1.1 C (34.0 F)	36 of 100 (Notable)
Pacelma	Russia	Record daily precipitation	34.0 mm (1.3 in)	33 of 100 (Routine)
Datong	China	Record low minimum temperature	-9.9 C (14.2 F)	31 of 100 (Routine)
Pellston Rgnl AP	United States	Record low maximum temperature	1.1 C (34.0 F)	31 of 100 (Routine)
Willis Island	Australia	Record high maximum temperature	31.0 C (87.8 F)	30 of 100 (Routine)
Darwin Airport	Australia	Record high minimum temperature	26.5 C (79.7 F)	30 of 100 (Routine)
St-Girons	France	Record daily precipitation	32.9 mm (1.3 in)	30 of 100 (Routine)
Zamboanga	Philippines	Record high maximum temperature	36.6 C (97.9 F)	30 of 100 (Routine)
Isparta	Turkey	Record high minimum temperature	11.7 C (53.1 F)	30 of 100 (Routine)
Athens	United States	Record low maximum temperature	14.4 C (57.9 F)	30 of 100 (Routine)
Xilin Hot	China	Record low maximum temperature	-1.6 C (29.1 F)	29 of 100 (Routine)
St-Girons	France	Record high minimum temperature	11.8 C (53.2 F)	29 of 100 (Routine)
Tak	Thailand	Record high minimum temperature	31.2 C (88.2 F)	29 of 100 (Routine)
Arxan	China	Record low maximum temperature	-5.3 C (22.5 F)	28 of 100 (Routine)
Lindong	China	Record low maximum temperature	3.3 C (37.9 F)	28 of 100 (Routine)
Chifeng	China	Record low maximum temperature	6.5 C (43.7 F)	28 of 100 (Routine)
Tlaxcala de Xicontecatl (Dge)	Mexico	Record daily precipitation	25.4 mm (1.0 in)	28 of 100 (Routine)
Mahaulepu 941.1	United States	Record high maximum temperature	34.4 C (93.9 F)	28 of 100 (Routine)
Mackay Aero	Australia	Record high minimum temperature	22.4 C (72.3 F)	27 of 100 (Routine)
Qiqihar	China	Record low maximum temperature	0.4 C (32.7 F)	27 of 100 (Routine)
Yan An	China	Record low minimum temperature	-1.2 C (29.8 F)	27 of 100 (Routine)
Linxi	China	Record low maximum temperature	1.3 C (34.3 F)	27 of 100 (Routine)
Duolun	China	Record low maximum temperature	-2.4 C (27.7 F)	27 of 100 (Routine)
Chipley	United States	Record high minimum temperature	21.7 C (71.1 F)	27 of 100 (Routine)
Hillsborough Rvr Sp	United States	Record daily precipitation	41.1 mm (1.6 in)	27 of 100 (Routine)
Hancock Houghton Co AP	United States	Record low maximum temperature	0.0 C (32.0 F)	27 of 100 (Routine)
Matecana	Colombia	Record daily precipitation	42.9 mm (1.7 in)	26 of 100 (Routine)
Burukan	Russia	Record low maximum temperature	-4.6 C (23.7 F)	26 of 100 (Routine)
Belfast	United States	Record low minimum temperature	-5.0 C (23.0 F)	26 of 100 (Routine)
Quemado	United States	Record high minimum temperature	11.7 C (53.1 F)	26 of 100 (Routine)
Miami Intl AP	United States	Record high maximum temperature	34.4 C (93.9 F)	26 of 100 (Routine)
Keshan	China	Record low maximum temperature	0.7 C (33.3 F)	25 of 100 (Routine)
Huade	China	Record low maximum temperature	-1.1 C (30.0 F)	25 of 100 (Routine)
Baruun-Urt	Mongolia	Record low minimum temperature	-11.0 C (12.2 F)	25 of 100 (Routine)
Partizansk	Russia	Record low minimum temperature	-2.4 C (27.7 F)	25 of 100 (Routine)
Cape Agulhas	South Africa	Record high maximum temperature	25.2 C (77.4 F)	25 of 100 (Routine)
Uttaradit	Thailand	Record high maximum temperature	42.5 C (108.5 F)	25 of 100 (Routine)
Madison Wwtp	United States	Record low minimum temperature	-6.1 C (21.0 F)	25 of 100 (Routine)
Bangor Intl AP	United States	Record low minimum temperature	-6.0 C (21.2 F)	25 of 100 (Routine)

Counts by Type and Timescale

397 records

Records set or tied on 21 April 2020 by type: Highest daily maximum 133, Lowest daily maximum 56, Highest daily minimum 81, Lowest daily minimum 52, Heaviest daily rainfall 69, Heaviest daily snowfall 5, Deepest snow cover 1.

Records on 21 April 2020 by type
Record type	Records
Highest daily maximum	133
Lowest daily maximum	56
Highest daily minimum	81
Lowest daily minimum	52
Heaviest daily rainfall	69
Heaviest daily snowfall	5
Deepest snow cover	1

Records on 21 April 2020 by timescale: all-time 2, monthly 7, daily 388.

How Much Records Were Beaten By

329 broken records

Margins by which the 329 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 74.1. Ties are not counted.

Top 20 by Significance

21 April 2020

Top 20 records on 21 April 2020 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 April 2020	Lankaran, AZ	daily rain	99.6 mm (3.9 in)	74.1 mm (2.9 in)	89 years	76 of 100 (Major)
21 April 2020	Perpignan, FR	daily rain	90.5 mm (3.6 in)	67.0 mm (2.6 in)	86 years	75 of 100 (Major)
21 April 2020	Barcelona/Aeropuerto, ES	daily rain	73.3 mm (2.9 in)	35.4 mm (1.4 in)	35 years	56 of 100 (Notable)
21 April 2020	Kahuku 912, US	daily high max	30.0 C (86.0 F)	1.7 C (3.1 F)	104 years	53 of 100 (Notable)
21 April 2020	Kirsanov, RU	monthly rain	47.0 mm (1.9 in)	16.0 mm (0.6 in)	1 year	52 of 100 (Notable)
21 April 2020	Multan Intl, PK	daily rain	38.1 mm (1.5 in)	32.0 mm (1.3 in)	36 years	49 of 100 (Notable)
21 April 2020	Cagliari, IT	daily rain	26.4 mm (1.0 in)	15.0 mm (0.6 in)	58 years	48 of 100 (Notable)
21 April 2020	Girona/Costa Brava, ES	daily rain	63.6 mm (2.5 in)	45.3 mm (1.8 in)	12 years	47 of 100 (Notable)
21 April 2020	Honavar, IN	daily rain	35.3 mm (1.4 in)	27.2 mm (1.1 in)	52 years	46 of 100 (Notable)
21 April 2020	Mt Vernon, US	daily rain	71.1 mm (2.8 in)	43.2 mm (1.7 in)	39 years	45 of 100 (Notable)
21 April 2020	Zerdevka, RU	monthly rain	42.9 mm (1.7 in)	5.8 mm (0.23 in)	59 years	44 of 100 (Notable)
21 April 2020	San Sebastian - Igueldo, ES	daily rain	44.3 mm (1.7 in)	8.9 mm (0.35 in)	84 years	44 of 100 (Notable)
21 April 2020	Turgaj, KZ	daily high max	27.9 C (82.2 F)	2.8 C (5.0 F)	119 years	43 of 100 (Notable)
21 April 2020	Houghton Lake 6 WSW, US	daily snowfall	7.6 cm (3.0 in)	2.5 cm (1.0 in)	96 years	43 of 100 (Notable)
21 April 2020	Dutch Harbor, US	daily high min	5.0 C (41.0 F)	1.1 C (2.0 F)	96 years	42 of 100 (Notable)
21 April 2020	Talladega, US	daily high min	20.0 C (68.0 F)	1.1 C (2.0 F)	97 years	41 of 100 (Notable)
21 April 2020	Montelimar, FR	daily high min	15.2 C (59.4 F)	2.2 C (4.0 F)	77 years	39 of 100 (Notable)
21 April 2020	Montpellier-Aeroport, FR	daily rain	28.1 mm (1.1 in)	11.1 mm (0.4 in)	72 years	39 of 100 (Notable)
21 April 2020	Calcutta/Dum Dum, IN	daily low max	27.9 C (82.2 F)	2.1 C (3.8 F)	75 years	38 of 100 (Notable)
21 April 2020	Collegeville St John's, US	daily low min	-6.7 C (19.9 F)	0.6 C (1.1 F)	84 years	36 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 2020

Records set or tied on this calendar date in each year from 1793 to 2020. 2020 had 397 records.

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

Records on 04-21 in each year
Year	Records
1793	1
1814	1
1820	1
1838	1
1849	2
1851	1
1852	3
1854	1
1858	3
1861	2
1865	3
1866	1
1868	1
1870	1
1875	4
1876	2
1877	1
1879	3
1880	1
1881	1
1882	1
1884	1
1885	2
1888	1
1890	1
1891	1
1892	1
1893	2
1894	4
1895	1
1897	1
1898	2
1899	2
1900	7
1901	17
1902	7
1903	3
1904	10
1905	18
1906	5
1907	17
1908	25
1909	20
1910	33
1911	9
1912	22
1913	14
1914	220
1915	24
1916	64
1917	48
1918	84
1919	31
1920	85
1921	59
1922	70
1923	223
1924	119
1925	295
1926	148
1927	284
1928	269
1929	193
1930	127
1931	358
1932	304
1933	201
1934	497
1935	266
1936	277
1937	416
1938	295
1939	110
1940	462
1941	306
1942	285
1943	481
1944	261
1945	367
1946	448
1947	459
1948	365
1949	448
1950	529
1951	884
1952	665
1953	640
1954	527
1955	607
1956	497
1957	824
1958	329
1959	505
1960	889
1961	647
1962	319
1963	778
1964	1,125
1965	658
1966	756
1967	903
1968	655
1969	388
1970	728
1971	546
1972	593
1973	1,163
1974	528
1975	360
1976	452
1977	854
1978	735
1979	449
1980	1,934
1981	944
1982	1,075
1983	1,366
1984	1,231
1985	1,245
1986	977
1987	1,290
1988	898
1989	1,557
1990	1,463
1991	1,291
1992	1,763
1993	847
1994	859
1995	1,476
1996	788
1997	964
1998	876
1999	752
2000	921
2001	967
2002	1,312
2003	607
2004	586
2005	693
2006	761
2007	480
2008	1,327
2009	983
2010	805
2011	1,053
2012	687
2013	1,015
2014	393
2015	621
2016	587
2017	797
2018	862
2019	731
2020	397
2021	1,608
2022	433
2023	886
2024	754
2025	506
2026	853

Download the Data

Data for records on 2020-04-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-13. Last revised 13 October 2026 (2026-10-13).

Margin	Records
0 to 10	310
10 to 20	9
20 to 30	4
30 to 40	2
40 to 50	2
50 to 60	0
60 to 70	1
70 to 80	1