Weather Records on 21 April 2003

607 weather records were set or tied worldwide on 21 April 2003. Highest significance: Donaueschingen, DE.

Key Facts for 21 April 2003

On 21 April 2003, 607 weather records were set or tied at long-record stations worldwide.
399 were record highs and 86 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 14 monthly and 592 daily.
Donaueschingen set a daily record precipitation of 29.5 mm (1.2 in) on 21 April 2003.
Across 159 earlier years (1793 to 2026) the same calendar date averaged 461 records.

Record Map

607 stations

607 station records on 21 April 2003 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 April 2003: highest significance records shown on the map
Station	Country	Type	Value	Significance
Donaueschingen	Germany	Record daily precipitation	29.5 mm (1.2 in)	64 of 100 (Major)
Moroleon	Mexico	Record daily precipitation	37.8 mm (1.5 in)	55 of 100 (Notable)
Halifax Macrossan St	Australia	Record daily precipitation	131.0 mm (5.2 in)	54 of 100 (Notable)
Cape Leeuwin	Australia	Record high minimum temperature	20.7 C (69.3 F)	47 of 100 (Notable)
Geisingen	Germany	Record daily precipitation	32.3 mm (1.3 in)	47 of 100 (Notable)
Jokkmokk	Sweden	Record high maximum temperature	15.8 C (60.4 F)	45 of 100 (Notable)
El Arish Post Office	Australia	Record daily precipitation	156.0 mm (6.1 in)	44 of 100 (Notable)
Flying Fish Point	Australia	Record daily precipitation	132.0 mm (5.2 in)	42 of 100 (Notable)
Coahuayutla	Mexico	Record low minimum temperature	8.9 C (48.0 F)	42 of 100 (Notable)
Biskra	Algeria	Record high minimum temperature	20.7 C (69.3 F)	41 of 100 (Notable)
Bingil Bay	Australia	Record daily precipitation	149.0 mm (5.9 in)	38 of 100 (Notable)
Mont-Aigoual	France	Record daily precipitation	86.4 mm (3.4 in)	38 of 100 (Notable)
Fall Rvr Lake	United States	Record daily precipitation	65.5 mm (2.6 in)	38 of 100 (Notable)
Vestervig	Denmark	Record high maximum temperature	18.9 C (66.0 F)	37 of 100 (Notable)
San Jose de Raices	Mexico	Record high minimum temperature	22.8 C (73.0 F)	37 of 100 (Notable)
Francisco Zorrilla	Mexico	Record daily precipitation	45.5 mm (1.8 in)	37 of 100 (Notable)
Kvikkjokk-Arrenjarka	Sweden	Record high maximum temperature	14.8 C (58.6 F)	36 of 100 (Notable)
Ironwood	United States	Record daily precipitation	31.2 mm (1.2 in)	36 of 100 (Notable)
Innisfail	Australia	Record daily precipitation	120.2 mm (4.7 in)	35 of 100 (Notable)
Suaqui Grande (Smn)	Mexico	Record low minimum temperature	0.6 C (33.1 F)	35 of 100 (Notable)
Turlock #2	United States	Record low maximum temperature	13.9 C (57.0 F)	35 of 100 (Notable)
Albany	Australia	Record high minimum temperature	18.9 C (66.0 F)	34 of 100 (Routine)
Magdalena	Mexico	Record low maximum temperature	22.2 C (72.0 F)	34 of 100 (Routine)
Harnosand	Sweden	Record high maximum temperature	19.7 C (67.5 F)	34 of 100 (Routine)
Xochitlan Todos Santos	Mexico	Record high minimum temperature	16.7 C (62.1 F)	33 of 100 (Routine)
Laxbacken	Sweden	Record high maximum temperature	16.5 C (61.7 F)	33 of 100 (Routine)
Ljusnedal	Sweden	Record high maximum temperature	14.0 C (57.2 F)	32 of 100 (Routine)
Buenavista de Cuellar	Mexico	Record high minimum temperature	23.9 C (75.0 F)	31 of 100 (Routine)
Obrestad Fyr	Norway	Record high minimum temperature	10.5 C (50.9 F)	31 of 100 (Routine)
John Redmond Lake	United States	Record daily precipitation	66.0 mm (2.6 in)	31 of 100 (Routine)
Bethel AP	United States	Record daily snowfall	7.4 cm (2.9 in)	31 of 100 (Routine)
Maitinez	Mexico	Record daily precipitation	30.5 mm (1.2 in)	30 of 100 (Routine)
Hunge	Sweden	Record high maximum temperature	19.2 C (66.6 F)	30 of 100 (Routine)
Lannas	Sweden	Record high maximum temperature	21.3 C (70.3 F)	30 of 100 (Routine)
Wasco	United States	Record low maximum temperature	11.1 C (52.0 F)	30 of 100 (Routine)
Saxon 1WSW	United States	Record daily precipitation	31.8 mm (1.3 in)	30 of 100 (Routine)
Coahuayutla	Mexico	Record low maximum temperature	22.8 C (73.0 F)	29 of 100 (Routine)
Oestersund-Froesoen	Sweden	Record high maximum temperature	17.1 C (62.8 F)	29 of 100 (Routine)
Big Creek Ph 1	United States	Record daily precipitation	28.4 mm (1.1 in)	29 of 100 (Routine)
Palpan	Mexico	Record high minimum temperature	19.4 C (66.9 F)	28 of 100 (Routine)
La Encantada	Mexico	Record daily precipitation	27.2 mm (1.1 in)	28 of 100 (Routine)
Slatteroy Fyr	Norway	Record high maximum temperature	17.6 C (63.7 F)	28 of 100 (Routine)
Mala	Sweden	Record high maximum temperature	16.5 C (61.7 F)	28 of 100 (Routine)
Athens Ou	United States	Record daily precipitation	30.0 mm (1.2 in)	28 of 100 (Routine)
Tully Sugar Mill	Australia	Record daily precipitation	128.0 mm (5.0 in)	27 of 100 (Routine)
Utsira Fyr	Norway	Record high maximum temperature	14.7 C (58.5 F)	27 of 100 (Routine)
Utsira Fyr	Norway	Record high minimum temperature	10.4 C (50.7 F)	27 of 100 (Routine)
Surigao	Philippines	Record high minimum temperature	25.3 C (77.5 F)	27 of 100 (Routine)
Hede	Sweden	Record high maximum temperature	17.6 C (63.7 F)	27 of 100 (Routine)
Arjeplog A	Sweden	Record high maximum temperature	13.1 C (55.6 F)	27 of 100 (Routine)
Bayfield 6 N	United States	Record daily precipitation	30.7 mm (1.2 in)	27 of 100 (Routine)
Anchorage Merrill Fld	United States	Record high minimum temperature	3.3 C (37.9 F)	27 of 100 (Routine)
Presa Colorines (Cfe)	Mexico	Record low minimum temperature	11.1 C (52.0 F)	26 of 100 (Routine)
Leona Vicario	Mexico	Record high maximum temperature	36.7 C (98.1 F)	26 of 100 (Routine)
Jaumave (Dge)	Mexico	Record daily precipitation	32.3 mm (1.3 in)	26 of 100 (Routine)
Koosharem	United States	Record high minimum temperature	5.6 C (42.1 F)	26 of 100 (Routine)
Vacoas (Mauritius)	Mauritius	Record high maximum temperature	29.6 C (85.3 F)	25 of 100 (Routine)
El Tigre	Mexico	Record high minimum temperature	25.0 C (77.0 F)	25 of 100 (Routine)
Sola	Norway	Record high minimum temperature	11.1 C (52.0 F)	25 of 100 (Routine)
Lulea-Bergnaset	Sweden	Record high maximum temperature	13.8 C (56.8 F)	25 of 100 (Routine)

Counts by Type and Timescale

607 records

Records set or tied on 21 April 2003 by type: Highest daily maximum 222, Lowest daily maximum 54, Highest daily minimum 177, Lowest daily minimum 32, Heaviest daily rainfall 117, Heaviest daily snowfall 4, Deepest snow cover 1.

Records on 21 April 2003 by type
Record type	Records
Highest daily maximum	222
Lowest daily maximum	54
Highest daily minimum	177
Lowest daily minimum	32
Heaviest daily rainfall	117
Heaviest daily snowfall	4
Deepest snow cover	1

Records on 21 April 2003 by timescale: all-time 1, monthly 14, daily 592.

How Much Records Were Beaten By

469 broken records

Margins by which the 469 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 109.7. Ties are not counted.

Top 20 by Significance

21 April 2003

Top 20 records on 21 April 2003 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 April 2003	Donaueschingen, DE	daily rain	29.5 mm (1.2 in)	20.6 mm (0.8 in)	60 years	64 of 100 (Major)
21 April 2003	Moroleon, MX	daily rain	37.8 mm (1.5 in)	37.0 mm (1.5 in)	24 years	55 of 100 (Notable)
21 April 2003	Halifax Macrossan St, AU	daily rain	131.0 mm (5.2 in)	45.9 mm (1.8 in)	88 years	54 of 100 (Notable)
21 April 2003	Cape Leeuwin, AU	daily high min	20.7 C (69.3 F)	2.3 C (4.1 F)	92 years	47 of 100 (Notable)
21 April 2003	Geisingen, DE	daily rain	32.3 mm (1.3 in)	25.1 mm (1.0 in)	13 years	47 of 100 (Notable)
21 April 2003	Jokkmokk, SE	daily high max	15.8 C (60.4 F)	3.3 C (5.9 F)	90 years	45 of 100 (Notable)
21 April 2003	El Arish Post Office, AU	daily rain	156.0 mm (6.1 in)	109.7 mm (4.3 in)	8 years	44 of 100 (Notable)
21 April 2003	Flying Fish Point, AU	daily rain	132.0 mm (5.2 in)	30.4 mm (1.2 in)	82 years	42 of 100 (Notable)
21 April 2003	Coahuayutla, MX	daily low min	8.9 C (48.0 F)	6.1 C (11.0 F)	38 years	42 of 100 (Notable)
21 April 2003	Biskra, DZ	daily high min	20.7 C (69.3 F)	0.5 C (0.9 F)	121 years	41 of 100 (Notable)
21 April 2003	Bingil Bay, AU	daily rain	149.0 mm (5.9 in)	65.7 mm (2.6 in)	32 years	38 of 100 (Notable)
21 April 2003	Mont-Aigoual, FR	daily rain	86.4 mm (3.4 in)	16.4 mm (0.6 in)	68 years	38 of 100 (Notable)
21 April 2003	Fall Rvr Lake, US	daily rain	65.5 mm (2.6 in)	30.7 mm (1.2 in)	18 years	38 of 100 (Notable)
21 April 2003	Vestervig, DK	daily high max	18.9 C (66.0 F)	0.3 C (0.5 F)	90 years	37 of 100 (Notable)
21 April 2003	San Jose de Raices, MX	daily high min	22.8 C (73.0 F)	7.8 C (14.0 F)	30 years	37 of 100 (Notable)
21 April 2003	Francisco Zorrilla, MX	daily rain	45.5 mm (1.8 in)	29.0 mm (1.1 in)	20 years	37 of 100 (Notable)
21 April 2003	Kvikkjokk-Arrenjarka, SE	daily high max	14.8 C (58.6 F)	4.8 C (8.6 F)	54 years	36 of 100 (Notable)
21 April 2003	Ironwood, US	daily rain	31.2 mm (1.2 in)	0.2 mm (0.01 in)	86 years	36 of 100 (Notable)
21 April 2003	Innisfail, AU	daily rain	120.2 mm (4.7 in)	5.9 mm (0.23 in)	82 years	35 of 100 (Notable)
21 April 2003	Suaqui Grande (Smn), MX	daily low min	0.6 C (33.1 F)	6.1 C (11.0 F)	40 years	35 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 2003

Records set or tied on this calendar date in each year from 1793 to 2003. 2003 had 607 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 2003-04-21: 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 20	453
20 to 40	10
40 to 60	4
60 to 80	1
80 to 100	0
100 to 120	1