Weather Records on 27 April 2004

937 weather records were set or tied worldwide on 27 April 2004. Highest significance: Wisley, GB.

Key Facts for 27 April 2004

On 27 April 2004, 937 weather records were set or tied at long-record stations worldwide.
498 were record highs and 215 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 77 monthly and 858 daily.
Wisley set a daily record precipitation of 30.4 mm (1.2 in) on 27 April 2004.
Across 158 earlier years (1795 to 2026) the same calendar date averaged 472 records.

Record Map

937 stations

937 station records on 27 April 2004 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 April 2004: highest significance records shown on the map
Station	Country	Type	Value	Significance
Wisley	United Kingdom	Record daily precipitation	30.4 mm (1.2 in)	65 of 100 (Major)
Cuetzalan del Progreso	Mexico	Record daily precipitation	198.9 mm (7.8 in)	58 of 100 (Notable)
Kilauea 1134	United States	Record low maximum temperature	21.1 C (70.0 F)	55 of 100 (Notable)
Brighton Downs	Australia	Record daily precipitation	33.0 mm (1.3 in)	52 of 100 (Notable)
Turlock #2	United States	Record high maximum temperature	35.6 C (96.1 F)	52 of 100 (Notable)
Florence	United States	Record high minimum temperature	24.4 C (75.9 F)	51 of 100 (Notable)
Himeji	Japan	Record daily precipitation	53.8 mm (2.1 in)	50 of 100 (Notable)
Berkeley	United States	Record high maximum temperature	35.0 C (95.0 F)	50 of 100 (Notable)
Zacapoaxtla (Smn)	Mexico	Record daily precipitation	62.5 mm (2.5 in)	49 of 100 (Notable)
Uwajima	Japan	Record daily precipitation	55.9 mm (2.2 in)	47 of 100 (Notable)
San Juan Evangelista (Dge)	Mexico	Record daily precipitation	45.5 mm (1.8 in)	46 of 100 (Notable)
Logrono-Agoncillo	Spain	Record daily precipitation	37.8 mm (1.5 in)	46 of 100 (Notable)
Shinjo	Japan	Record daily precipitation	48.0 mm (1.9 in)	45 of 100 (Notable)
Auberry 2 NW	United States	Record high minimum temperature	21.1 C (70.0 F)	45 of 100 (Notable)
Los Angeles Downtown/Usc	United States	Record high maximum temperature	38.9 C (102.0 F)	45 of 100 (Notable)
Kochi	Japan	Record daily precipitation	144.5 mm (5.7 in)	44 of 100 (Notable)
Huauchinango	Mexico	Record daily precipitation	47.5 mm (1.9 in)	43 of 100 (Notable)
Newport Beach Harbor	United States	Record high minimum temperature	18.9 C (66.0 F)	43 of 100 (Notable)
Turlock #2	United States	Record high minimum temperature	19.4 C (66.9 F)	43 of 100 (Notable)
Hiroshima	Japan	Record daily precipitation	95.5 mm (3.8 in)	42 of 100 (Notable)
San Francisco Tlalnepantla	Mexico	Record daily precipitation	39.9 mm (1.6 in)	42 of 100 (Notable)
Sibiu	Romania	Record daily precipitation	28.3 mm (1.1 in)	42 of 100 (Notable)
Redlands	United States	Record high maximum temperature	37.8 C (100.0 F)	42 of 100 (Notable)
San Jose	United States	Record high minimum temperature	17.2 C (63.0 F)	42 of 100 (Notable)
Longview	United States	Record high maximum temperature	32.2 C (90.0 F)	42 of 100 (Notable)
Berkeley	United States	Record high minimum temperature	15.6 C (60.1 F)	41 of 100 (Notable)
Healdsburg	United States	Record high maximum temperature	37.2 C (99.0 F)	41 of 100 (Notable)
Ojai	United States	Record high maximum temperature	38.3 C (100.9 F)	41 of 100 (Notable)
Honokaa Town 215	United States	Record daily precipitation	83.8 mm (3.3 in)	41 of 100 (Notable)
Ishinomaki	Japan	Record daily precipitation	59.9 mm (2.4 in)	40 of 100 (Notable)
Brawley 2 SW	United States	Record high minimum temperature	21.7 C (71.1 F)	40 of 100 (Notable)
Somerville 4 NW	United States	Record daily precipitation	33.0 mm (1.3 in)	40 of 100 (Notable)
Salinas AP	United States	Record high maximum temperature	34.4 C (93.9 F)	40 of 100 (Notable)
Fushiki	Japan	Record daily precipitation	37.8 mm (1.5 in)	39 of 100 (Notable)
Miyakonojo	Japan	Record daily precipitation	96.5 mm (3.8 in)	39 of 100 (Notable)
Telchac Puerto	Mexico	Record daily precipitation	49.8 mm (2.0 in)	39 of 100 (Notable)
Pomona/Fairplex	United States	Record high maximum temperature	38.3 C (100.9 F)	39 of 100 (Notable)
Riverside Fire STN 3	United States	Record high maximum temperature	38.9 C (102.0 F)	39 of 100 (Notable)
Santa Barbara	United States	Record high maximum temperature	36.1 C (97.0 F)	39 of 100 (Notable)
Marshalltown	United States	Record low minimum temperature	-4.4 C (24.1 F)	39 of 100 (Notable)
Imuris (Smn)	Mexico	Record high minimum temperature	21.1 C (70.0 F)	38 of 100 (Notable)
Los Gatos	United States	Record high maximum temperature	33.3 C (91.9 F)	38 of 100 (Notable)
Marysville	United States	Record high maximum temperature	35.6 C (96.1 F)	38 of 100 (Notable)
Pasadena	United States	Record high maximum temperature	37.2 C (99.0 F)	38 of 100 (Notable)
Atenco	Mexico	Record daily precipitation	30.5 mm (1.2 in)	37 of 100 (Notable)
Davis 2 WSW Exp Farm	United States	Record high maximum temperature	35.0 C (95.0 F)	37 of 100 (Notable)
Yorba Linda	United States	Record high minimum temperature	16.1 C (61.0 F)	37 of 100 (Notable)
Donnybrook	Australia	Record high maximum temperature	28.5 C (83.3 F)	36 of 100 (Notable)
Ulleungdo	Korea, South	Record daily precipitation	61.0 mm (2.4 in)	36 of 100 (Notable)
Presa Rodriguez	Mexico	Record high minimum temperature	16.7 C (62.1 F)	36 of 100 (Notable)
Leona Vicario	Mexico	Record daily precipitation	82.8 mm (3.3 in)	36 of 100 (Notable)
Upington Agr.	South Africa	Record daily precipitation	66.0 mm (2.6 in)	36 of 100 (Notable)
San Jose	United States	Record high maximum temperature	33.3 C (91.9 F)	36 of 100 (Notable)
U C L A	United States	Record high maximum temperature	36.7 C (98.1 F)	36 of 100 (Notable)
Willows 6 W	United States	Record high maximum temperature	36.1 C (97.0 F)	36 of 100 (Notable)
Hatton 9 SE	United States	Record high minimum temperature	12.2 C (54.0 F)	36 of 100 (Notable)
Evelyn State Forest	Australia	Record daily precipitation	47.0 mm (1.9 in)	35 of 100 (Notable)
De Sabla	United States	Record high maximum temperature	30.6 C (87.1 F)	35 of 100 (Notable)
Half Moon Bay	United States	Record high maximum temperature	26.7 C (80.1 F)	35 of 100 (Notable)
Merced	United States	Record high maximum temperature	36.1 C (97.0 F)	35 of 100 (Notable)

Counts by Type and Timescale

937 records

Records set or tied on 27 April 2004 by type: Highest daily maximum 292, Lowest daily maximum 126, Highest daily minimum 206, Lowest daily minimum 89, Heaviest daily rainfall 209, Heaviest daily snowfall 13, Deepest snow cover 2.

Records on 27 April 2004 by type
Record type	Records
Highest daily maximum	292
Lowest daily maximum	126
Highest daily minimum	206
Lowest daily minimum	89
Heaviest daily rainfall	209
Heaviest daily snowfall	13
Deepest snow cover	2

Records on 27 April 2004 by timescale: all-time 2, monthly 77, daily 858.

How Much Records Were Beaten By

729 broken records

Margins by which the 729 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 139.0. Ties are not counted.

Top 20 by Significance

27 April 2004

Top 20 records on 27 April 2004 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 April 2004	Wisley, GB	daily rain	30.4 mm (1.2 in)	11.9 mm (0.5 in)	85 years	65 of 100 (Major)
27 April 2004	Cuetzalan del Progreso, MX	daily rain	198.9 mm (7.8 in)	139.0 mm (5.5 in)	39 years	58 of 100 (Notable)
27 April 2004	Kilauea 1134, US	daily low max	21.1 C (70.0 F)	2.8 C (5.0 F)	99 years	55 of 100 (Notable)
27 April 2004	Brighton Downs, AU	daily rain	33.0 mm (1.3 in)	23.1 mm (0.9 in)	84 years	52 of 100 (Notable)
27 April 2004	Turlock #2, US	monthly high max	35.6 C (96.1 F)	1.2 C (2.2 F)	106 years	52 of 100 (Notable)
27 April 2004	Florence, US	monthly high min	24.4 C (75.9 F)	1.6 C (2.9 F)	90 years	51 of 100 (Notable)
27 April 2004	Himeji, JP	daily rain	53.8 mm (2.1 in)	40.3 mm (1.6 in)	46 years	50 of 100 (Notable)
27 April 2004	Berkeley, US	monthly high max	35.0 C (95.0 F)	2.2 C (4.0 F)	83 years	50 of 100 (Notable)
27 April 2004	Zacapoaxtla (Smn), MX	daily rain	62.5 mm (2.5 in)	46.2 mm (1.8 in)	12 years	49 of 100 (Notable)
27 April 2004	Uwajima, JP	daily rain	55.9 mm (2.2 in)	40.0 mm (1.6 in)	48 years	47 of 100 (Notable)
27 April 2004	San Juan Evangelista (Dge), MX	daily rain	45.5 mm (1.8 in)	40.7 mm (1.6 in)	12 years	46 of 100 (Notable)
27 April 2004	Logrono-Agoncillo, ES	daily rain	37.8 mm (1.5 in)	32.0 mm (1.3 in)	4 years	46 of 100 (Notable)
27 April 2004	Shinjo, JP	daily rain	48.0 mm (1.9 in)	26.0 mm (1.0 in)	25 years	45 of 100 (Notable)
27 April 2004	Auberry 2 NW, US	monthly high min	21.1 C (70.0 F)	1.1 C (2.0 F)	81 years	45 of 100 (Notable)
27 April 2004	Los Angeles Downtown/Usc, US	daily high max	38.9 C (102.0 F)	5.6 C (10.1 F)	83 years	45 of 100 (Notable)
27 April 2004	Kochi, JP	daily rain	144.5 mm (5.7 in)	98.5 mm (3.9 in)	24 years	44 of 100 (Notable)
27 April 2004	Huauchinango, MX	daily rain	47.5 mm (1.9 in)	15.7 mm (0.6 in)	63 years	43 of 100 (Notable)
27 April 2004	Newport Beach Harbor, US	daily high min	18.9 C (66.0 F)	2.8 C (5.0 F)	78 years	43 of 100 (Notable)
27 April 2004	Turlock #2, US	daily high min	19.4 C (66.9 F)	2.7 C (4.9 F)	89 years	43 of 100 (Notable)
27 April 2004	Hiroshima, JP	daily rain	95.5 mm (3.8 in)	52.0 mm (2.0 in)	27 years	42 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

1795 to 2004

Records set or tied on this calendar date in each year from 1795 to 2004. 2004 had 937 records.

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

Records on 04-27 in each year
Year	Records
1795	1
1801	1
1802	2
1812	1
1814	1
1817	3
1828	1
1838	1
1841	1
1843	1
1852	1
1853	1
1855	1
1856	1
1857	1
1862	2
1873	2
1874	4
1879	1
1882	2
1884	2
1885	5
1887	1
1888	4
1890	3
1891	1
1892	3
1893	3
1894	7
1895	2
1896	3
1897	4
1899	5
1900	4
1901	3
1903	5
1904	11
1905	16
1906	13
1907	31
1908	27
1909	51
1910	8
1911	37
1912	5
1913	73
1914	19
1915	77
1916	36
1917	47
1918	55
1919	69
1920	44
1921	71
1922	151
1923	110
1924	103
1925	113
1926	287
1927	114
1928	404
1929	71
1930	80
1931	454
1932	331
1933	328
1934	275
1935	227
1936	97
1937	377
1938	467
1939	212
1940	268
1941	361
1942	569
1943	374
1944	214
1945	476
1946	512
1947	373
1948	535
1949	516
1950	617
1951	409
1952	722
1953	651
1954	875
1955	937
1956	685
1957	552
1958	461
1959	470
1960	684
1961	313
1962	741
1963	768
1964	711
1965	568
1966	1,282
1967	733
1968	372
1969	543
1970	1,142
1971	758
1972	645
1973	1,188
1974	926
1975	820
1976	810
1977	801
1978	694
1979	758
1980	706
1981	1,148
1982	685
1983	921
1984	1,754
1985	1,141
1986	1,225
1987	1,482
1988	893
1989	1,320
1990	1,321
1991	1,028
1992	2,163
1993	1,285
1994	1,614
1995	806
1996	1,034
1997	1,588
1998	872
1999	544
2000	1,171
2001	1,138
2002	1,024
2003	840
2004	937
2005	675
2006	705
2007	1,055
2008	1,032
2009	1,299
2010	751
2011	1,291
2012	1,015
2013	568
2014	656
2015	608
2016	755
2017	918
2018	407
2019	626
2020	497
2021	450
2022	567
2023	536
2024	574
2025	659
2026	450

Download the Data

Data for records on 2004-04-27: 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 20	690
20 to 40	24
40 to 60	12
60 to 80	1
80 to 100	1
100 to 120	0
120 to 140	1