Weather Records on 15 April 2003

1,760 weather records were set or tied worldwide on 15 April 2003. Highest significance: Tracy, US.

Key Facts for 15 April 2003

On 15 April 2003, 1,760 weather records were set or tied at long-record stations worldwide.
1,229 were record highs and 195 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 74 monthly and 1,685 daily.
Tracy set a daily record precipitation of 73.7 mm (2.9 in) on 15 April 2003.
Across 159 earlier years (1801 to 2026) the same calendar date averaged 485 records.

Record Map

1,760 stations

1,760 station records on 15 April 2003 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 April 2003: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tracy	United States	Record daily precipitation	73.7 mm (2.9 in)	59 of 100 (Notable)
Santo Domingo	Mexico	Record low minimum temperature	8.9 C (48.0 F)	58 of 100 (Notable)
Valencia	Spain	Record daily precipitation	52.2 mm (2.1 in)	58 of 100 (Notable)
Redlands	United States	Record daily precipitation	40.9 mm (1.6 in)	58 of 100 (Notable)
Victorville	United States	Record daily precipitation	29.5 mm (1.2 in)	57 of 100 (Notable)
Cotonou	Benin	Record daily precipitation	194.1 mm (7.6 in)	55 of 100 (Notable)
Charlevoix	United States	Record high minimum temperature	11.1 C (52.0 F)	55 of 100 (Notable)
Cet Central England	United Kingdom	Record high maximum temperature	25.0 C (77.0 F)	53 of 100 (Notable)
Mwanza	Tanzania	Record daily precipitation	89.9 mm (3.5 in)	52 of 100 (Notable)
Buxton	United Kingdom	Record high maximum temperature	23.9 C (75.0 F)	52 of 100 (Notable)
Hemet	United States	Record daily precipitation	39.4 mm (1.6 in)	51 of 100 (Notable)
Idyllwild Fire Dept	United States	Record daily snowfall	19.1 cm (7.5 in)	51 of 100 (Notable)
Stornoway Airport	United Kingdom	Record high maximum temperature	20.0 C (68.0 F)	49 of 100 (Notable)
Wrattonbully (Joeville)	Australia	Record daily precipitation	44.0 mm (1.7 in)	48 of 100 (Notable)
Big Sandy	United States	Record daily precipitation	26.7 mm (1.1 in)	48 of 100 (Notable)
Dyer 5S	United States	Record daily snowfall	5.1 cm (2.0 in)	48 of 100 (Notable)
McGill	United States	Record daily snowfall	27.9 cm (11.0 in)	48 of 100 (Notable)
Armagh	United Kingdom	Record high maximum temperature	20.9 C (69.6 F)	47 of 100 (Notable)
Lisbon	United States	Record daily precipitation	53.1 mm (2.1 in)	47 of 100 (Notable)
Winona	United States	Record high minimum temperature	19.4 C (66.9 F)	46 of 100 (Notable)
Neillsville 3ESE	United States	Record high maximum temperature	31.1 C (88.0 F)	46 of 100 (Notable)
Weabonga (Monomeeth)	Australia	Record daily precipitation	36.4 mm (1.4 in)	45 of 100 (Notable)
Decorah	United States	Record high minimum temperature	17.2 C (63.0 F)	45 of 100 (Notable)
Geraldine	United States	Record daily precipitation	25.9 mm (1.0 in)	45 of 100 (Notable)
Aberporth	United Kingdom	Record high maximum temperature	24.1 C (75.4 F)	44 of 100 (Notable)
Algona	United States	Record high maximum temperature	31.7 C (89.1 F)	44 of 100 (Notable)
Audubon	United States	Record high minimum temperature	16.7 C (62.1 F)	44 of 100 (Notable)
Cedar Rapids #1	United States	Record high minimum temperature	17.8 C (64.0 F)	44 of 100 (Notable)
Cresco 1 NE	United States	Record high maximum temperature	30.6 C (87.1 F)	44 of 100 (Notable)
Mason City	United States	Record high maximum temperature	30.6 C (87.1 F)	44 of 100 (Notable)
Northwood	United States	Record high maximum temperature	31.1 C (88.0 F)	44 of 100 (Notable)
Caledonia	United States	Record high maximum temperature	30.0 C (86.0 F)	44 of 100 (Notable)
Medford	United States	Record high maximum temperature	28.9 C (84.0 F)	44 of 100 (Notable)
Newton Rigg	United Kingdom	Record high maximum temperature	24.1 C (75.4 F)	43 of 100 (Notable)
Audubon	United States	Record high maximum temperature	31.1 C (88.0 F)	43 of 100 (Notable)
Belle Plaine	United States	Record high maximum temperature	30.6 C (87.1 F)	43 of 100 (Notable)
Emmetsburg	United States	Record high maximum temperature	30.6 C (87.1 F)	43 of 100 (Notable)
Grundy Ctr	United States	Record high maximum temperature	31.1 C (88.0 F)	43 of 100 (Notable)
Grand Meadow	United States	Record high maximum temperature	30.0 C (86.0 F)	43 of 100 (Notable)
Dale Enterprise	United States	Record high maximum temperature	30.0 C (86.0 F)	43 of 100 (Notable)
Lake Mills Wwtp	United States	Record high maximum temperature	28.9 C (84.0 F)	43 of 100 (Notable)
New London	United States	Record high maximum temperature	29.4 C (84.9 F)	43 of 100 (Notable)
Oconomowoc Wwtp	United States	Record high maximum temperature	28.9 C (84.0 F)	43 of 100 (Notable)
Portage Wwtp	United States	Record high maximum temperature	30.0 C (86.0 F)	43 of 100 (Notable)
Shawano 2SSW	United States	Record high maximum temperature	30.0 C (86.0 F)	43 of 100 (Notable)
Stevens Pt	United States	Record high maximum temperature	29.4 C (84.9 F)	43 of 100 (Notable)
Waukesha Wwtp	United States	Record high maximum temperature	28.9 C (84.0 F)	43 of 100 (Notable)
Waupaca	United States	Record high maximum temperature	30.6 C (87.1 F)	43 of 100 (Notable)
Petropavlovsk	Kazakhstan	Record low minimum temperature	-14.4 C (6.1 F)	42 of 100 (Notable)
Iturbide	Mexico	Record low maximum temperature	25.6 C (78.1 F)	42 of 100 (Notable)
Coahuayutla	Mexico	Record low minimum temperature	8.9 C (48.0 F)	42 of 100 (Notable)
Valley	United Kingdom	Record high maximum temperature	22.6 C (72.7 F)	42 of 100 (Notable)
Estherville 4E	United States	Record high maximum temperature	30.6 C (87.1 F)	42 of 100 (Notable)
Iowa Falls	United States	Record high maximum temperature	30.6 C (87.1 F)	42 of 100 (Notable)
Sidney 1SSE	United States	Record high maximum temperature	32.2 C (90.0 F)	42 of 100 (Notable)
Toledo 3N	United States	Record high maximum temperature	30.6 C (87.1 F)	42 of 100 (Notable)
Winterset 4N	United States	Record high minimum temperature	15.0 C (59.0 F)	42 of 100 (Notable)
Ely AP	United States	Record snow depth	22.9 cm (9.0 in)	42 of 100 (Notable)
Henshaw Dam	United States	Record daily precipitation	50.8 mm (2.0 in)	41 of 100 (Notable)
Upper Lake 2 N	United States	Record low maximum temperature	11.1 C (52.0 F)	41 of 100 (Notable)

Counts by Type and Timescale

1,760 records

Records set or tied on 15 April 2003 by type: Highest daily maximum 799, Lowest daily maximum 124, Highest daily minimum 430, Lowest daily minimum 71, Heaviest daily rainfall 312, Heaviest daily snowfall 16, Deepest snow cover 8.

Records on 15 April 2003 by type
Record type	Records
Highest daily maximum	799
Lowest daily maximum	124
Highest daily minimum	430
Lowest daily minimum	71
Heaviest daily rainfall	312
Heaviest daily snowfall	16
Deepest snow cover	8

Records on 15 April 2003 by timescale: all-time 1, monthly 74, daily 1,685.

How Much Records Were Beaten By

1,463 broken records

Margins by which the 1,463 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 191.0. Ties are not counted.

Top 20 by Significance

15 April 2003

Top 20 records on 15 April 2003 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 April 2003	Tracy, US	daily rain	73.7 mm (2.9 in)	22.4 mm (0.9 in)	84 years	59 of 100 (Notable)
15 April 2003	Santo Domingo, MX	daily low min	8.9 C (48.0 F)	6.1 C (11.0 F)	49 years	58 of 100 (Notable)
15 April 2003	Valencia, ES	daily rain	52.2 mm (2.1 in)	37.1 mm (1.5 in)	40 years	58 of 100 (Notable)
15 April 2003	Redlands, US	daily rain	40.9 mm (1.6 in)	34.0 mm (1.3 in)	26 years	58 of 100 (Notable)
15 April 2003	Victorville, US	monthly rain	29.5 mm (1.2 in)	9.2 mm (0.36 in)	62 years	57 of 100 (Notable)
15 April 2003	Cotonou, BJ	daily rain	194.1 mm (7.6 in)	139.2 mm (5.5 in)	30 years	55 of 100 (Notable)
15 April 2003	Charlevoix, US	daily high min	11.1 C (52.0 F)	6.1 C (11.0 F)	108 years	55 of 100 (Notable)
15 April 2003	Cet Central England, GB	monthly high max	25.0 C (77.0 F)	1.1 C (2.0 F)	109 years	53 of 100 (Notable)
15 April 2003	Mwanza, TZ	daily rain	89.9 mm (3.5 in)	52.6 mm (2.1 in)	36 years	52 of 100 (Notable)
15 April 2003	Buxton, GB	monthly high max	23.9 C (75.0 F)	1.0 C (1.8 F)	109 years	52 of 100 (Notable)
15 April 2003	Hemet, US	monthly rain	39.4 mm (1.6 in)	11.0 mm (0.4 in)	57 years	51 of 100 (Notable)
15 April 2003	Idyllwild Fire Dept, US	daily snowfall	19.1 cm (7.5 in)	19.1 cm (7.5 in)	58 years	51 of 100 (Notable)
15 April 2003	Stornoway Airport, GB	daily high max	20.0 C (68.0 F)	5.0 C (9.0 F)	60 years	49 of 100 (Notable)
15 April 2003	Wrattonbully (Joeville), AU	daily rain	44.0 mm (1.7 in)	33.4 mm (1.3 in)	17 years	48 of 100 (Notable)
15 April 2003	Big Sandy, US	daily rain	26.7 mm (1.1 in)	17.8 mm (0.7 in)	48 years	48 of 100 (Notable)
15 April 2003	Dyer 5S, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	97 years	48 of 100 (Notable)
15 April 2003	McGill, US	monthly snowfall	27.9 cm (11.0 in)	2.5 cm (1.0 in)	82 years	48 of 100 (Notable)
15 April 2003	Armagh, GB	daily high max	20.9 C (69.6 F)	2.2 C (4.0 F)	148 years	47 of 100 (Notable)
15 April 2003	Lisbon, US	monthly rain	53.1 mm (2.1 in)	1.0 mm (0.04 in)	88 years	47 of 100 (Notable)
15 April 2003	Winona, US	daily high min	19.4 C (66.9 F)	3.3 C (5.9 F)	106 years	46 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

1801 to 2003

Records set or tied on this calendar date in each year from 1801 to 2003. 2003 had 1,760 records.

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

Records on 04-15 in each year
Year	Records
1801	1
1817	1
1820	1
1844	1
1845	1
1847	1
1849	1
1853	2
1855	2
1858	1
1862	3
1865	3
1866	1
1868	1
1869	2
1873	1
1874	1
1876	1
1880	1
1882	1
1885	3
1886	1
1887	3
1889	2
1890	3
1891	2
1892	8
1893	2
1894	1
1896	2
1897	1
1898	2
1899	4
1900	9
1901	2
1902	4
1903	8
1904	39
1905	11
1906	20
1907	18
1908	15
1909	18
1910	16
1911	20
1912	24
1913	39
1914	17
1915	13
1916	15
1917	35
1918	40
1919	22
1920	50
1921	59
1922	94
1923	178
1924	172
1925	168
1926	453
1927	321
1928	631
1929	91
1930	289
1931	388
1932	150
1933	300
1934	339
1935	515
1936	439
1937	277
1938	596
1939	789
1940	581
1941	628
1942	525
1943	1,037
1944	313
1945	783
1946	245
1947	532
1948	306
1949	419
1950	568
1951	504
1952	357
1953	475
1954	896
1955	484
1956	750
1957	378
1958	458
1959	314
1960	319
1961	877
1962	733
1963	714
1964	382
1965	504
1966	464
1967	599
1968	476
1969	555
1970	841
1971	640
1972	896
1973	667
1974	385
1975	780
1976	1,566
1977	649
1978	426
1979	370
1980	1,066
1981	724
1982	955
1983	1,343
1984	612
1985	788
1986	1,140
1987	579
1988	839
1989	836
1990	837
1991	769
1992	783
1993	1,156
1994	835
1995	805
1996	1,173
1997	1,031
1998	1,752
1999	1,249
2000	1,163
2001	1,043
2002	1,866
2003	1,760
2004	761
2005	583
2006	1,637
2007	1,776
2008	1,157
2009	853
2010	804
2011	1,162
2012	1,007
2013	1,146
2014	1,721
2015	739
2016	602
2017	474
2018	1,913
2019	610
2020	1,068
2021	494
2022	1,145
2023	912
2024	1,096
2025	860
2026	1,118

Download the Data

Data for records on 2003-04-15: 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 25	1,435
25 to 50	15
50 to 75	5
75 to 100	3
100 to 125	3
125 to 150	1
150 to 175	0
175 to 200	1