Weather Records on 21 October 2003

2,066 weather records were set or tied worldwide on 21 October 2003. Highest significance: McMillin Rsvr, US.

Key Facts for 21 October 2003

On 21 October 2003, 2,066 weather records were set or tied at long-record stations worldwide.
1,605 were record highs and 306 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 80 monthly and 1,982 daily.
McMillin Rsvr set a monthly record daily precipitation of 78.0 mm (3.1 in) on 21 October 2003.
Across 167 earlier years (1795 to 2025) the same calendar date averaged 410 records.

Record Map

2,000 stations, highest significance shown

2,000 station records on 21 October 2003 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 October 2003: highest significance records shown on the map
Station	Country	Type	Value	Significance
McMillin Rsvr	United States	Record daily precipitation	78.0 mm (3.1 in)	72 of 100 (Major)
Startup 1 E	United States	Record daily precipitation	120.7 mm (4.8 in)	69 of 100 (Major)
Everett	United States	Record daily precipitation	40.6 mm (1.6 in)	67 of 100 (Major)
Tolt S Fk Rsvr	United States	Record daily precipitation	159.0 mm (6.3 in)	67 of 100 (Major)
Holden Village	United States	Record daily precipitation	106.2 mm (4.2 in)	64 of 100 (Major)
Winthrop 1 WSW	United States	Record daily precipitation	25.4 mm (1.0 in)	62 of 100 (Major)
Diablo Dam	United States	Record daily precipitation	153.4 mm (6.0 in)	61 of 100 (Major)
Bremerton	United States	Record daily precipitation	101.1 mm (4.0 in)	60 of 100 (Major)
Buckley 1 NE	United States	Record daily precipitation	71.6 mm (2.8 in)	59 of 100 (Notable)
Chechersk-In-Gomel	Belarus	Record daily precipitation	31.0 mm (1.2 in)	57 of 100 (Notable)
Camecuaro	Mexico	Record daily precipitation	74.9 mm (2.9 in)	56 of 100 (Notable)
Newhalem	United States	Record daily precipitation	137.9 mm (5.4 in)	56 of 100 (Notable)
Agalega	Mauritius	Record daily precipitation	62.0 mm (2.4 in)	55 of 100 (Notable)
Grayland	United States	Record daily precipitation	89.7 mm (3.5 in)	55 of 100 (Notable)
Ross Dam	United States	Record daily precipitation	131.6 mm (5.2 in)	55 of 100 (Notable)
Castle Dale	United States	Record high maximum temperature	30.6 C (87.1 F)	51 of 100 (Notable)
Wauna 3 W	United States	Record daily precipitation	128.5 mm (5.1 in)	51 of 100 (Notable)
Lancang	China	Record daily precipitation	91.6 mm (3.6 in)	50 of 100 (Notable)
Salida	United States	Record high maximum temperature	29.4 C (84.9 F)	50 of 100 (Notable)
Concrete Ppl Fish STN	United States	Record daily precipitation	72.4 mm (2.9 in)	50 of 100 (Notable)
Fuerteventura/Aeropuerto	Spain	Record daily precipitation	33.1 mm (1.3 in)	47 of 100 (Notable)
Republic	United States	Record high minimum temperature	12.2 C (54.0 F)	47 of 100 (Notable)
Vancouver 4 NNE	United States	Record high minimum temperature	17.2 C (63.0 F)	47 of 100 (Notable)
Sugarloaf Rsvr	United States	Record high maximum temperature	21.7 C (71.1 F)	46 of 100 (Notable)
Moscow U of I	United States	Record high maximum temperature	26.7 C (80.1 F)	46 of 100 (Notable)
Falls City 2 SSW	United States	Record high minimum temperature	13.3 C (55.9 F)	46 of 100 (Notable)
Odessa	United States	Record high maximum temperature	28.3 C (82.9 F)	46 of 100 (Notable)
Odessa	United States	Record high minimum temperature	15.0 C (59.0 F)	46 of 100 (Notable)
Sedro-Woolley	United States	Record daily precipitation	45.7 mm (1.8 in)	45 of 100 (Notable)
Kailua 446	United States	Record low minimum temperature	14.4 C (57.9 F)	45 of 100 (Notable)
Glasgow #2	United States	Record high minimum temperature	9.4 C (48.9 F)	44 of 100 (Notable)
Palmer 3 ESE	United States	Record daily precipitation	149.1 mm (5.9 in)	44 of 100 (Notable)
Lima	United States	Record high maximum temperature	25.6 C (78.1 F)	43 of 100 (Notable)
Martinsdale 3 NNW	United States	Record high minimum temperature	8.3 C (46.9 F)	43 of 100 (Notable)
Tuba City	United States	Record high minimum temperature	8.9 C (48.0 F)	42 of 100 (Notable)
Pasadena	United States	Record high minimum temperature	20.6 C (69.1 F)	42 of 100 (Notable)
Pomona/Fairplex	United States	Record high maximum temperature	40.0 C (104.0 F)	42 of 100 (Notable)
Mancos 1SW	United States	Record high maximum temperature	25.6 C (78.1 F)	42 of 100 (Notable)
Arlington	United States	Record high minimum temperature	14.4 C (57.9 F)	42 of 100 (Notable)
Joseph	United States	Record high maximum temperature	25.0 C (77.0 F)	42 of 100 (Notable)
Wallowa	United States	Record high maximum temperature	28.3 C (82.9 F)	42 of 100 (Notable)
Rosalia	United States	Record high minimum temperature	12.8 C (55.0 F)	42 of 100 (Notable)
Bishop AP	United States	Record high maximum temperature	31.7 C (89.1 F)	42 of 100 (Notable)
Salem AP (McNary Field)	United States	Record high maximum temperature	26.7 C (80.1 F)	42 of 100 (Notable)
Ajo	United States	Record high minimum temperature	25.6 C (78.1 F)	41 of 100 (Notable)
Osceola	United States	Record high maximum temperature	31.1 C (88.0 F)	41 of 100 (Notable)
Choteau	United States	Record high maximum temperature	26.1 C (79.0 F)	41 of 100 (Notable)
Ft Bayard 4W	United States	Record high maximum temperature	27.2 C (81.0 F)	41 of 100 (Notable)
Aneth Plt	United States	Record high maximum temperature	28.3 C (82.9 F)	41 of 100 (Notable)
Coupeville 1 S	United States	Record high minimum temperature	13.3 C (55.9 F)	41 of 100 (Notable)
Hatton 9 SE	United States	Record high maximum temperature	28.3 C (82.9 F)	41 of 100 (Notable)
Pomeroy	United States	Record high maximum temperature	27.8 C (82.0 F)	41 of 100 (Notable)
South Pass City	United States	Record high maximum temperature	22.2 C (72.0 F)	41 of 100 (Notable)
Huntington Lake	United States	Record high minimum temperature	10.6 C (51.1 F)	40 of 100 (Notable)
Beaver City	United States	Record high maximum temperature	33.3 C (91.9 F)	40 of 100 (Notable)
Lead	United States	Record high minimum temperature	15.6 C (60.1 F)	40 of 100 (Notable)
Spokane Intl AP	United States	Record high maximum temperature	25.0 C (77.0 F)	40 of 100 (Notable)
Podor	Senegal	Record low maximum temperature	27.0 C (80.6 F)	39 of 100 (Notable)
Castle Hot Springs	United States	Record high maximum temperature	38.3 C (100.9 F)	39 of 100 (Notable)
Chester	United States	Record high maximum temperature	26.1 C (79.0 F)	39 of 100 (Notable)

Counts by Type and Timescale

2,066 records

Records set or tied on 21 October 2003 by type: Highest daily maximum 1,109, Lowest daily maximum 221, Highest daily minimum 496, Lowest daily minimum 85, Heaviest daily rainfall 140, Heaviest daily snowfall 2, Deepest snow cover 13.

Records on 21 October 2003 by type
Record type	Records
Highest daily maximum	1,109
Lowest daily maximum	221
Highest daily minimum	496
Lowest daily minimum	85
Heaviest daily rainfall	140
Heaviest daily snowfall	2
Deepest snow cover	13

Records on 21 October 2003 by timescale: all-time 4, monthly 80, daily 1,982.

How Much Records Were Beaten By

1,701 broken records

Margins by which the 1,701 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 170.0. Ties are not counted.

Top 20 by Significance

21 October 2003

Top 20 records on 21 October 2003 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 October 2003	McMillin Rsvr, US	monthly rain	78.0 mm (3.1 in)	31.8 mm (1.3 in)	53 years	72 of 100 (Major)
21 October 2003	Startup 1 E, US	monthly rain	120.7 mm (4.8 in)	39.2 mm (1.5 in)	52 years	69 of 100 (Major)
21 October 2003	Everett, US	daily rain	40.6 mm (1.6 in)	18.8 mm (0.7 in)	108 years	67 of 100 (Major)
21 October 2003	Tolt S Fk Rsvr, US	all-time rain	159.0 mm (6.3 in)	47.7 mm (1.9 in)	16 years	67 of 100 (Major)
21 October 2003	Holden Village, US	monthly rain	106.2 mm (4.2 in)	49.0 mm (1.9 in)	35 years	64 of 100 (Major)
21 October 2003	Winthrop 1 WSW, US	daily rain	25.4 mm (1.0 in)	16.0 mm (0.6 in)	70 years	62 of 100 (Major)
21 October 2003	Diablo Dam, US	daily rain	153.4 mm (6.0 in)	109.5 mm (4.3 in)	40 years	61 of 100 (Major)
21 October 2003	Bremerton, US	monthly rain	101.1 mm (4.0 in)	14.7 mm (0.6 in)	88 years	60 of 100 (Major)
21 October 2003	Buckley 1 NE, US	daily rain	71.6 mm (2.8 in)	38.8 mm (1.5 in)	36 years	59 of 100 (Notable)
21 October 2003	Chechersk-In-Gomel, BY	daily rain	31.0 mm (1.2 in)	21.2 mm (0.8 in)	44 years	57 of 100 (Notable)
21 October 2003	Camecuaro, MX	monthly rain	74.9 mm (2.9 in)	31.0 mm (1.2 in)	17 years	56 of 100 (Notable)
21 October 2003	Newhalem, US	daily rain	137.9 mm (5.4 in)	101.1 mm (4.0 in)	40 years	56 of 100 (Notable)
21 October 2003	Agalega, MU	daily rain	62.0 mm (2.4 in)	36.9 mm (1.5 in)	40 years	55 of 100 (Notable)
21 October 2003	Grayland, US	daily rain	89.7 mm (3.5 in)	51.3 mm (2.0 in)	36 years	55 of 100 (Notable)
21 October 2003	Ross Dam, US	daily rain	131.6 mm (5.2 in)	97.6 mm (3.8 in)	36 years	55 of 100 (Notable)
21 October 2003	Castle Dale, US	daily high max	30.6 C (87.1 F)	6.2 C (11.2 F)	100 years	51 of 100 (Notable)
21 October 2003	Wauna 3 W, US	all-time rain	128.5 mm (5.1 in)	22.1 mm (0.9 in)	12 years	51 of 100 (Notable)
21 October 2003	Lancang, CN	daily rain	91.6 mm (3.6 in)	62.0 mm (2.4 in)	17 years	50 of 100 (Notable)
21 October 2003	Salida, US	monthly high max	29.4 C (84.9 F)	0.5 C (0.9 F)	102 years	50 of 100 (Notable)
21 October 2003	Indiga, RU	daily rain	17.1 mm (0.7 in)	8.1 mm (0.32 in)	70 years	20 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

1795 to 2003

Records set or tied on this calendar date in each year from 1795 to 2003. 2003 had 2,066 records.

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

Records on 10-21 in each year
Year	Records
1795	1
1802	2
1805	1
1808	1
1810	1
1834	1
1835	1
1840	1
1845	1
1847	1
1850	1
1851	2
1854	1
1859	1
1863	1
1864	1
1866	3
1867	1
1868	3
1869	2
1871	1
1872	1
1873	1
1874	1
1876	4
1877	2
1878	1
1880	3
1881	1
1883	1
1886	1
1888	2
1889	2
1890	3
1891	6
1892	6
1893	1
1894	1
1895	2
1896	5
1898	6
1899	3
1900	2
1901	9
1902	2
1903	3
1904	30
1905	15
1906	11
1907	35
1908	35
1909	19
1910	21
1911	10
1912	18
1913	59
1914	35
1915	43
1916	70
1917	208
1918	18
1919	102
1920	149
1921	58
1922	78
1923	81
1924	389
1925	150
1926	77
1927	187
1928	78
1929	200
1930	492
1931	217
1932	165
1933	733
1934	407
1935	707
1936	407
1937	132
1938	121
1939	491
1940	537
1941	644
1942	258
1943	421
1944	367
1945	538
1946	297
1947	977
1948	266
1949	1,015
1950	438
1951	382
1952	848
1953	1,579
1954	279
1955	481
1956	276
1957	511
1958	322
1959	410
1960	408
1961	553
1962	359
1963	725
1964	457
1965	465
1966	425
1967	472
1968	174
1969	881
1970	548
1971	498
1972	813
1973	464
1974	866
1975	509
1976	1,467
1977	451
1978	616
1979	1,958
1980	378
1981	667
1982	870
1983	786
1984	1,872
1985	776
1986	814
1987	852
1988	696
1989	1,668
1990	807
1991	877
1992	1,095
1993	845
1994	670
1995	1,120
1996	1,581
1997	915
1998	711
1999	688
2000	771
2001	610
2002	1,241
2003	2,066
2004	1,674
2005	949
2006	1,057
2007	916
2008	610
2009	713
2010	710
2011	662
2012	703
2013	440
2014	716
2015	493
2016	734
2017	750
2018	440
2019	757
2020	1,135
2021	574
2022	629
2023	890
2024	1,138
2025	364

Download the Data

Data for records on 2003-10-21: 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 25	1,677
25 to 50	14
50 to 75	4
75 to 100	3
100 to 125	2
125 to 150	0
150 to 175	1