Weather Records on 21 July 2003

1,250 weather records were set or tied worldwide on 21 July 2003. Highest significance: Manistee 3SE, US.

Key Facts for 21 July 2003

On 21 July 2003, 1,250 weather records were set or tied at long-record stations worldwide.
971 were record highs and 159 were record lows, counting maximum and minimum temperature.
By timescale, 15 were all-time records, 28 monthly and 1,207 daily.
Manistee 3SE set a daily record precipitation of 64.3 mm (2.5 in) on 21 July 2003.
Across 159 earlier years (1794 to 2026) the same calendar date averaged 462 records.

Record Map

1,250 stations

1,250 station records on 21 July 2003 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 July 2003: highest significance records shown on the map
Station	Country	Type	Value	Significance
Manistee 3SE	United States	Record daily precipitation	64.3 mm (2.5 in)	66 of 100 (Major)
Okeene	United States	Record high minimum temperature	30.0 C (86.0 F)	59 of 100 (Notable)
Poljarnoe	Russia	Record daily precipitation	39.4 mm (1.6 in)	51 of 100 (Notable)
Aschersleben	Germany	Record daily precipitation	26.0 mm (1.0 in)	50 of 100 (Notable)
Columbia City	United States	Record daily precipitation	78.5 mm (3.1 in)	49 of 100 (Notable)
W Manchester 3 WSW	United States	Record daily precipitation	65.5 mm (2.6 in)	49 of 100 (Notable)
Helena 1 SSE	United States	Record high minimum temperature	27.2 C (81.0 F)	48 of 100 (Notable)
Van Wert 1 S	United States	Record daily precipitation	49.5 mm (1.9 in)	47 of 100 (Notable)
Youngstown-Warren Rgnl AP	United States	Record daily precipitation	118.1 mm (4.6 in)	47 of 100 (Notable)
Lincoln	United States	Record daily precipitation	53.6 mm (2.1 in)	46 of 100 (Notable)
Richmond Wtr Wks	United States	Record daily precipitation	84.8 mm (3.3 in)	46 of 100 (Notable)
Greene	United States	Record daily precipitation	56.4 mm (2.2 in)	46 of 100 (Notable)
Yemassee 1 N	United States	Record low minimum temperature	15.6 C (60.1 F)	46 of 100 (Notable)
Phrae	Thailand	Record daily precipitation	82.0 mm (3.2 in)	45 of 100 (Notable)
Logansport Cicott St	United States	Record daily precipitation	52.3 mm (2.1 in)	45 of 100 (Notable)
Grover Hill	United States	Record daily precipitation	62.0 mm (2.4 in)	45 of 100 (Notable)
Mancos 1SW	United States	Record high maximum temperature	33.3 C (91.9 F)	43 of 100 (Notable)
Grand Portage	United States	Record daily precipitation	36.8 mm (1.4 in)	43 of 100 (Notable)
Weilburg (Klaranlage)	Germany	Record daily precipitation	42.0 mm (1.7 in)	42 of 100 (Notable)
Palisade	United States	Record high minimum temperature	25.0 C (77.0 F)	42 of 100 (Notable)
Ola	United States	Record high maximum temperature	40.0 C (104.0 F)	42 of 100 (Notable)
Ionia 2SSW	United States	Record daily precipitation	36.3 mm (1.4 in)	42 of 100 (Notable)
Taos	United States	Record high maximum temperature	35.6 C (96.1 F)	42 of 100 (Notable)
Dubois Rgnl AP	United States	Record daily precipitation	62.0 mm (2.4 in)	42 of 100 (Notable)
Vestervig	Denmark	Record high minimum temperature	17.8 C (64.0 F)	41 of 100 (Notable)
Greifswald	Germany	Record high minimum temperature	19.7 C (67.5 F)	41 of 100 (Notable)
Dillenburg	Germany	Record daily precipitation	29.0 mm (1.1 in)	41 of 100 (Notable)
Laguna del Fresno	Mexico	Record low minimum temperature	5.6 C (42.1 F)	41 of 100 (Notable)
Barabinsk	Russia	Record daily precipitation	59.6 mm (2.3 in)	41 of 100 (Notable)
Saint Helena	United States	Record high minimum temperature	18.3 C (64.9 F)	41 of 100 (Notable)
Susanville 2SW	United States	Record high minimum temperature	21.1 C (70.0 F)	41 of 100 (Notable)
Meade	United States	Record high maximum temperature	42.2 C (108.0 F)	41 of 100 (Notable)
Bad Marienberg	Germany	Record daily precipitation	49.1 mm (1.9 in)	40 of 100 (Notable)
Allentown Lehigh Vly Intl AP	United States	Record daily precipitation	65.3 mm (2.6 in)	40 of 100 (Notable)
Clayton Muni Air Pk	United States	Record high minimum temperature	21.1 C (70.0 F)	40 of 100 (Notable)
Salem AP (McNary Field)	United States	Record high minimum temperature	18.3 C (64.9 F)	40 of 100 (Notable)
Temascalcingo	Mexico	Record high minimum temperature	17.8 C (64.0 F)	39 of 100 (Notable)
Glenns Ferry	United States	Record high maximum temperature	43.3 C (109.9 F)	39 of 100 (Notable)
Lowell Wwtp	United States	Record daily precipitation	92.5 mm (3.6 in)	39 of 100 (Notable)
Cooperstown	United States	Record daily precipitation	30.0 mm (1.2 in)	39 of 100 (Notable)
Waterville 2	United States	Record daily precipitation	61.0 mm (2.4 in)	39 of 100 (Notable)
Paulding	United States	Record daily precipitation	46.0 mm (1.8 in)	39 of 100 (Notable)
Elma	United States	Record high minimum temperature	18.9 C (66.0 F)	39 of 100 (Notable)
Grand Junction Walker Fld	United States	Record high minimum temperature	22.8 C (73.0 F)	39 of 100 (Notable)
Livermore	United States	Record high minimum temperature	20.0 C (68.0 F)	38 of 100 (Notable)
Orland	United States	Record high minimum temperature	24.4 C (75.9 F)	38 of 100 (Notable)
Vacaville	United States	Record high minimum temperature	24.4 C (75.9 F)	38 of 100 (Notable)
Mountainair	United States	Record high maximum temperature	36.7 C (98.1 F)	38 of 100 (Notable)
Enid	United States	Record high minimum temperature	29.4 C (84.9 F)	38 of 100 (Notable)
Modesto AP	United States	Record high minimum temperature	25.0 C (77.0 F)	38 of 100 (Notable)
Soltau	Germany	Record daily precipitation	40.2 mm (1.6 in)	37 of 100 (Notable)
Santo Domingo	Mexico	Record low minimum temperature	10.0 C (50.0 F)	37 of 100 (Notable)
Villa Purificacion (Dge)	Mexico	Record low minimum temperature	15.0 C (59.0 F)	37 of 100 (Notable)
Alpine	United States	Record high minimum temperature	13.3 C (55.9 F)	37 of 100 (Notable)
Kelliher	United States	Record low minimum temperature	3.9 C (39.0 F)	37 of 100 (Notable)
Hennessey 4 ESE	United States	Record high minimum temperature	27.2 C (81.0 F)	37 of 100 (Notable)
Snowshoe Lake	United States	Record high minimum temperature	13.3 C (55.9 F)	37 of 100 (Notable)
Onahama	Japan	Record daily precipitation	50.0 mm (2.0 in)	36 of 100 (Notable)
Nouakchott	Mauritania	Record low minimum temperature	19.2 C (66.6 F)	36 of 100 (Notable)
Presa Colorines (Cfe)	Mexico	Record low minimum temperature	10.0 C (50.0 F)	36 of 100 (Notable)

Counts by Type and Timescale

1,250 records

Records set or tied on 21 July 2003 by type: Highest daily maximum 431, Lowest daily maximum 51, Highest daily minimum 540, Lowest daily minimum 108, Heaviest daily rainfall 120.

Records on 21 July 2003 by type
Record type	Records
Highest daily maximum	431
Lowest daily maximum	51
Highest daily minimum	540
Lowest daily minimum	108
Heaviest daily rainfall	120
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 July 2003 by timescale: all-time 15, monthly 28, daily 1,207.

How Much Records Were Beaten By

848 broken records

Margins by which the 848 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 55.1. Ties are not counted.

Top 20 by Significance

21 July 2003

Top 20 records on 21 July 2003 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 2003	Manistee 3SE, US	daily rain	64.3 mm (2.5 in)	44.0 mm (1.7 in)	69 years	66 of 100 (Major)
21 July 2003	Okeene, US	all-time high min	30.0 C (86.0 F)	0.6 C (1.1 F)	92 years	59 of 100 (Notable)
21 July 2003	Poljarnoe, RU	daily rain	39.4 mm (1.6 in)	16.6 mm (0.7 in)	52 years	51 of 100 (Notable)
21 July 2003	Aschersleben, DE	daily rain	26.0 mm (1.0 in)	9.1 mm (0.36 in)	101 years	50 of 100 (Notable)
21 July 2003	Columbia City, US	daily rain	78.5 mm (3.1 in)	48.0 mm (1.9 in)	21 years	49 of 100 (Notable)
21 July 2003	W Manchester 3 WSW, US	daily rain	65.5 mm (2.6 in)	21.0 mm (0.8 in)	84 years	49 of 100 (Notable)
21 July 2003	Helena 1 SSE, US	daily high min	27.2 C (81.0 F)	3.3 C (5.9 F)	90 years	48 of 100 (Notable)
21 July 2003	Van Wert 1 S, US	daily rain	49.5 mm (1.9 in)	28.9 mm (1.1 in)	50 years	47 of 100 (Notable)
21 July 2003	Youngstown-Warren Rgnl AP, US	all-time rain	118.1 mm (4.6 in)	8.6 mm (0.34 in)	48 years	47 of 100 (Notable)
21 July 2003	Lincoln, US	daily rain	53.6 mm (2.1 in)	23.1 mm (0.9 in)	76 years	46 of 100 (Notable)
21 July 2003	Richmond Wtr Wks, US	daily rain	84.8 mm (3.3 in)	47.5 mm (1.9 in)	29 years	46 of 100 (Notable)
21 July 2003	Greene, US	daily rain	56.4 mm (2.2 in)	23.4 mm (0.9 in)	46 years	46 of 100 (Notable)
21 July 2003	Yemassee 1 N, US	daily low min	15.6 C (60.1 F)	1.6 C (2.9 F)	93 years	46 of 100 (Notable)
21 July 2003	Phrae, TH	daily rain	82.0 mm (3.2 in)	41.1 mm (1.6 in)	28 years	45 of 100 (Notable)
21 July 2003	Logansport Cicott St, US	daily rain	52.3 mm (2.1 in)	7.8 mm (0.31 in)	110 years	45 of 100 (Notable)
21 July 2003	Grover Hill, US	daily rain	62.0 mm (2.4 in)	42.7 mm (1.7 in)	29 years	45 of 100 (Notable)
21 July 2003	Mancos 1SW, US	daily high max	33.3 C (91.9 F)	1.1 C (2.0 F)	101 years	43 of 100 (Notable)
21 July 2003	Grand Portage, US	daily rain	36.8 mm (1.4 in)	26.1 mm (1.0 in)	34 years	43 of 100 (Notable)
21 July 2003	Weilburg (Klaranlage), DE	daily rain	42.0 mm (1.7 in)	20.1 mm (0.8 in)	26 years	42 of 100 (Notable)
21 July 2003	Palisade, US	daily high min	25.0 C (77.0 F)	1.7 C (3.1 F)	92 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

1794 to 2003

Records set or tied on this calendar date in each year from 1794 to 2003. 2003 had 1,250 records.

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

Records on 07-21 in each year
Year	Records
1794	1
1795	1
1796	1
1797	1
1813	2
1832	2
1837	1
1839	1
1843	1
1844	2
1854	1
1859	3
1865	3
1868	3
1872	1
1876	1
1879	2
1880	1
1881	1
1884	1
1885	1
1886	2
1888	2
1889	3
1890	2
1892	3
1893	3
1894	3
1895	1
1896	3
1897	4
1898	7
1899	2
1900	6
1901	13
1902	12
1903	10
1904	8
1905	13
1906	13
1907	12
1908	25
1909	18
1910	12
1911	37
1912	52
1913	41
1914	48
1915	81
1916	72
1917	136
1918	130
1919	51
1920	33
1921	55
1922	48
1923	132
1924	286
1925	202
1926	401
1927	191
1928	205
1929	360
1930	521
1931	549
1932	322
1933	208
1934	965
1935	236
1936	322
1937	253
1938	638
1939	415
1940	318
1941	226
1942	318
1943	253
1944	716
1945	300
1946	398
1947	795
1948	403
1949	603
1950	662
1951	427
1952	657
1953	351
1954	656
1955	582
1956	490
1957	447
1958	531
1959	940
1960	651
1961	388
1962	263
1963	470
1964	457
1965	748
1966	626
1967	313
1968	334
1969	636
1970	1,241
1971	475
1972	1,046
1973	871
1974	536
1975	380
1976	477
1977	708
1978	1,155
1979	964
1980	926
1981	1,352
1982	588
1983	1,234
1984	764
1985	554
1986	791
1987	1,025
1988	1,015
1989	973
1990	914
1991	812
1992	1,562
1993	866
1994	773
1995	1,247
1996	1,141
1997	849
1998	1,674
1999	814
2000	1,230
2001	889
2002	990
2003	1,250
2004	694
2005	1,420
2006	1,479
2007	1,145
2008	989
2009	1,306
2010	1,148
2011	1,414
2012	815
2013	526
2014	762
2015	704
2016	645
2017	433
2018	942
2019	755
2020	363
2021	574
2022	866
2023	816
2024	873
2025	881
2026	874

Download the Data

Data for records on 2003-07-21: 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 10	799
10 to 20	23
20 to 30	14
30 to 40	5
40 to 50	6
50 to 60	1