Weather Records on 20 April 2004

567 weather records were set or tied worldwide on 20 April 2004. Highest significance: Huron Rgnl AP, US.

Key Facts for 20 April 2004

On 20 April 2004, 567 weather records were set or tied at long-record stations worldwide.
322 were record highs and 142 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 33 monthly and 533 daily.
Huron Rgnl AP set a daily record precipitation of 34.0 mm (1.3 in) on 20 April 2004.
Across 159 earlier years (1807 to 2026) the same calendar date averaged 461 records.

Record Map

567 stations

567 station records on 20 April 2004 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 April 2004: highest significance records shown on the map
Station	Country	Type	Value	Significance
Huron Rgnl AP	United States	Record daily precipitation	34.0 mm (1.3 in)	56 of 100 (Notable)
Pogranichnoe	Russia	Record daily precipitation	53.6 mm (2.1 in)	55 of 100 (Notable)
Kimberley	South Africa	Record daily precipitation	57.4 mm (2.3 in)	47 of 100 (Notable)
Gifu	Japan	Record daily precipitation	89.4 mm (3.5 in)	46 of 100 (Notable)
Castlewood	United States	Record daily precipitation	35.6 mm (1.4 in)	43 of 100 (Notable)
Maricao Fish Hatchery	Puerto Rico [United States]	Record daily precipitation	160.0 mm (6.3 in)	41 of 100 (Notable)
Lumpkin 2 SE	United States	Record high maximum temperature	32.8 C (91.0 F)	41 of 100 (Notable)
Webster	United States	Record daily precipitation	27.9 mm (1.1 in)	41 of 100 (Notable)
Whiskeytown Rsvr	United States	Record daily precipitation	66.5 mm (2.6 in)	39 of 100 (Notable)
Tartu-Toravere	Estonia	Record high minimum temperature	9.2 C (48.6 F)	38 of 100 (Notable)
Kobe	Japan	Record daily precipitation	56.9 mm (2.2 in)	38 of 100 (Notable)
Cuetzalan del Progreso	Mexico	Record low maximum temperature	15.0 C (59.0 F)	37 of 100 (Notable)
N Bend SW Oregon Rgnl AP	United States	Record daily precipitation	52.1 mm (2.1 in)	37 of 100 (Notable)
Wanyuan	China	Record low minimum temperature	0.0 C (32.0 F)	36 of 100 (Notable)
Fall Rvr Lake	United States	Record daily precipitation	46.2 mm (1.8 in)	36 of 100 (Notable)
Watertown Rgnl AP	United States	Record daily precipitation	31.5 mm (1.2 in)	35 of 100 (Notable)
Glomfjord	Norway	Record high minimum temperature	9.9 C (49.8 F)	34 of 100 (Routine)
Villaflores (Smn)	Mexico	Record high maximum temperature	40.0 C (104.0 F)	32 of 100 (Routine)
San Bernardino Lagunas	Mexico	Record low minimum temperature	-3.3 C (26.1 F)	32 of 100 (Routine)
Warren	United States	Record daily snowfall	12.7 cm (5.0 in)	32 of 100 (Routine)
Dinghai	China	Record high maximum temperature	31.6 C (88.9 F)	31 of 100 (Routine)
Kochi	Japan	Record daily precipitation	111.0 mm (4.4 in)	31 of 100 (Routine)
Playa Vicente	Mexico	Record low minimum temperature	12.8 C (55.0 F)	31 of 100 (Routine)
Khorog	Tajikistan	Record high minimum temperature	10.3 C (50.5 F)	31 of 100 (Routine)
Hangzhou	China	Record high maximum temperature	34.2 C (93.6 F)	30 of 100 (Routine)
Mito	Japan	Record high maximum temperature	28.7 C (83.7 F)	30 of 100 (Routine)
Huoshan	China	Record high maximum temperature	35.8 C (96.4 F)	29 of 100 (Routine)
Onahama	Japan	Record high maximum temperature	25.8 C (78.4 F)	29 of 100 (Routine)
Chihuahua	Mexico	Record high minimum temperature	19.2 C (66.6 F)	29 of 100 (Routine)
Skrova Fyr	Norway	Record high minimum temperature	9.9 C (49.8 F)	29 of 100 (Routine)
Jasso	Mexico	Record low minimum temperature	0.6 C (33.1 F)	28 of 100 (Routine)
Falls City 2 SSW	United States	Record daily precipitation	28.7 mm (1.1 in)	28 of 100 (Routine)
Nanchang	China	Record high maximum temperature	34.1 C (93.4 F)	27 of 100 (Routine)
Qu Xian	China	Record high maximum temperature	34.3 C (93.7 F)	27 of 100 (Routine)
Paoli	United States	Record high minimum temperature	19.4 C (66.9 F)	27 of 100 (Routine)
Laguna	United States	Record low minimum temperature	-8.3 C (17.1 F)	27 of 100 (Routine)
Powers	United States	Record daily precipitation	34.3 mm (1.4 in)	27 of 100 (Routine)
Jingdezhen	China	Record high maximum temperature	35.0 C (95.0 F)	26 of 100 (Routine)
Ocampo	Mexico	Record low minimum temperature	7.8 C (46.0 F)	26 of 100 (Routine)
Bailing-Miao	China	Record high maximum temperature	29.3 C (84.7 F)	25 of 100 (Routine)
Voru	Estonia	Record high minimum temperature	8.0 C (46.4 F)	25 of 100 (Routine)
Mishima	Japan	Record high maximum temperature	28.0 C (82.4 F)	25 of 100 (Routine)
Tequisistlan	Mexico	Record low minimum temperature	16.7 C (62.1 F)	25 of 100 (Routine)
Nordoyan Fyr	Norway	Record high minimum temperature	8.0 C (46.4 F)	25 of 100 (Routine)
Buholmrasa Fyr	Norway	Record high maximum temperature	16.0 C (60.8 F)	25 of 100 (Routine)
Conway Springs 4SW	United States	Record daily precipitation	40.4 mm (1.6 in)	25 of 100 (Routine)
Oxford	United States	Record daily precipitation	41.4 mm (1.6 in)	25 of 100 (Routine)
Gloversville	United States	Record high maximum temperature	29.4 C (84.9 F)	25 of 100 (Routine)
Alva 1W	United States	Record daily precipitation	50.8 mm (2.0 in)	25 of 100 (Routine)
Des Moines Intl AP	United States	Record daily precipitation	34.2 mm (1.3 in)	25 of 100 (Routine)
Boxian	China	Record high maximum temperature	34.5 C (94.1 F)	24 of 100 (Routine)
Benito Juarez	Mexico	Record low minimum temperature	7.8 C (46.0 F)	24 of 100 (Routine)
Ona II	Norway	Record high maximum temperature	15.9 C (60.6 F)	24 of 100 (Routine)
Nordoyan Fyr	Norway	Record high maximum temperature	12.6 C (54.7 F)	24 of 100 (Routine)
Kentfield	United States	Record daily precipitation	37.8 mm (1.5 in)	24 of 100 (Routine)
Nagqu	China	Record high maximum temperature	15.0 C (59.0 F)	23 of 100 (Routine)
Esashi	Japan	Record daily precipitation	43.4 mm (1.7 in)	23 of 100 (Routine)
Las Pocitas	Mexico	Record low maximum temperature	21.7 C (71.1 F)	23 of 100 (Routine)
Bolonchen	Mexico	Record low minimum temperature	15.6 C (60.1 F)	23 of 100 (Routine)
Buholmrasa Fyr	Norway	Record high minimum temperature	10.8 C (51.4 F)	23 of 100 (Routine)

Counts by Type and Timescale

567 records

Records set or tied on 20 April 2004 by type: Highest daily maximum 170, Lowest daily maximum 36, Highest daily minimum 152, Lowest daily minimum 106, Heaviest daily rainfall 100, Heaviest daily snowfall 2, Deepest snow cover 1.

Records on 20 April 2004 by type
Record type	Records
Highest daily maximum	170
Lowest daily maximum	36
Highest daily minimum	152
Lowest daily minimum	106
Heaviest daily rainfall	100
Heaviest daily snowfall	2
Deepest snow cover	1

Records on 20 April 2004 by timescale: all-time 1, monthly 33, daily 533.

How Much Records Were Beaten By

454 broken records

Margins by which the 454 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 54.0. Ties are not counted.

Top 20 by Significance

20 April 2004

Top 20 records on 20 April 2004 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 April 2004	Huron Rgnl AP, US	daily rain	34.0 mm (1.3 in)	14.2 mm (0.6 in)	112 years	56 of 100 (Notable)
20 April 2004	Pogranichnoe, RU	daily rain	53.6 mm (2.1 in)	29.9 mm (1.2 in)	33 years	55 of 100 (Notable)
20 April 2004	Kimberley, ZA	daily rain	57.4 mm (2.3 in)	34.4 mm (1.4 in)	12 years	47 of 100 (Notable)
20 April 2004	Gifu, JP	daily rain	89.4 mm (3.5 in)	53.9 mm (2.1 in)	34 years	46 of 100 (Notable)
20 April 2004	Castlewood, US	daily rain	35.6 mm (1.4 in)	6.4 mm (0.25 in)	87 years	43 of 100 (Notable)
20 April 2004	Maricao Fish Hatchery, PR	monthly rain	160.0 mm (6.3 in)	33.0 mm (1.3 in)	38 years	41 of 100 (Notable)
20 April 2004	Lumpkin 2 SE, US	daily high max	32.8 C (91.0 F)	0.6 C (1.1 F)	107 years	41 of 100 (Notable)
20 April 2004	Webster, US	daily rain	27.9 mm (1.1 in)	1.2 mm (0.05 in)	109 years	41 of 100 (Notable)
20 April 2004	Whiskeytown Rsvr, US	daily rain	66.5 mm (2.6 in)	49.2 mm (1.9 in)	21 years	39 of 100 (Notable)
20 April 2004	Tartu-Toravere, EE	daily high min	9.2 C (48.6 F)	0.7 C (1.3 F)	91 years	38 of 100 (Notable)
20 April 2004	Kobe, JP	daily rain	56.9 mm (2.2 in)	21.7 mm (0.9 in)	52 years	38 of 100 (Notable)
20 April 2004	Cuetzalan del Progreso, MX	daily low max	15.0 C (59.0 F)	5.0 C (9.0 F)	68 years	37 of 100 (Notable)
20 April 2004	N Bend SW Oregon Rgnl AP, US	daily rain	52.1 mm (2.1 in)	17.8 mm (0.7 in)	24 years	37 of 100 (Notable)
20 April 2004	Wanyuan, CN	daily low min	0.0 C (32.0 F)	4.9 C (8.8 F)	50 years	36 of 100 (Notable)
20 April 2004	Fall Rvr Lake, US	daily rain	46.2 mm (1.8 in)	22.6 mm (0.9 in)	32 years	36 of 100 (Notable)
20 April 2004	Watertown Rgnl AP, US	daily rain	31.5 mm (1.2 in)	3.6 mm (0.14 in)	73 years	35 of 100 (Notable)
20 April 2004	Glomfjord, NO	daily high min	9.9 C (49.8 F)	2.3 C (4.1 F)	67 years	34 of 100 (Routine)
20 April 2004	Villaflores (Smn), MX	daily high max	40.0 C (104.0 F)	1.1 C (2.0 F)	70 years	32 of 100 (Routine)
20 April 2004	San Bernardino Lagunas, MX	monthly low min	-3.3 C (26.1 F)	1.1 C (2.0 F)	44 years	32 of 100 (Routine)
20 April 2004	Warren, US	daily snowfall	12.7 cm (5.0 in)	5.1 cm (2.0 in)	42 years	32 of 100 (Routine)

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 2004

Records set or tied on this calendar date in each year from 1807 to 2004. 2004 had 567 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 2004-04-20: 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 10	428
10 to 20	15
20 to 30	4
30 to 40	2
40 to 50	1
50 to 60	4