Weather Records on 17 August 2003

948 weather records were set or tied worldwide on 17 August 2003. Highest significance: Yoder 5 W, US.

Key Facts for 17 August 2003

On 17 August 2003, 948 weather records were set or tied at long-record stations worldwide.
496 were record highs and 193 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 26 monthly and 921 daily.
Yoder 5 W set a daily record precipitation of 40.6 mm (1.6 in) on 17 August 2003.
Across 162 earlier years (1797 to 2026) the same calendar date averaged 471 records.

Record Map

948 stations

948 station records on 17 August 2003 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 August 2003: highest significance records shown on the map
Station	Country	Type	Value	Significance
Yoder 5 W	United States	Record daily precipitation	40.6 mm (1.6 in)	67 of 100 (Major)
Wialki	Australia	Record daily precipitation	33.6 mm (1.3 in)	63 of 100 (Major)
Grand Lake 1 NW	United States	Record daily precipitation	45.0 mm (1.8 in)	60 of 100 (Major)
Prachuap Khiri Khan	Thailand	Record daily precipitation	45.5 mm (1.8 in)	59 of 100 (Notable)
Dobra Scritia	Australia	Record daily precipitation	25.2 mm (1.0 in)	58 of 100 (Notable)
Dalwallinu Comparison	Australia	Record daily precipitation	27.3 mm (1.1 in)	54 of 100 (Notable)
Saltillo	Mexico	Record daily precipitation	56.9 mm (2.2 in)	54 of 100 (Notable)
Douglas 1 SE	United States	Record daily precipitation	26.7 mm (1.1 in)	51 of 100 (Notable)
Sundance	United States	Record high maximum temperature	37.2 C (99.0 F)	46 of 100 (Notable)
Miriam Vale	Australia	Record daily precipitation	35.2 mm (1.4 in)	44 of 100 (Notable)
Gallangowan Forestry	Australia	Record daily precipitation	32.4 mm (1.3 in)	44 of 100 (Notable)
Grand Lake 6 SSW	United States	Record daily precipitation	26.7 mm (1.1 in)	44 of 100 (Notable)
Table Tops	Australia	Record daily precipitation	50.9 mm (2.0 in)	42 of 100 (Notable)
Montville "Craglands"	Australia	Record daily precipitation	53.2 mm (2.1 in)	42 of 100 (Notable)
Munchen-Nymphenburg	Germany	Record high minimum temperature	19.0 C (66.2 F)	42 of 100 (Notable)
Glasgow #2	United States	Record high minimum temperature	22.8 C (73.0 F)	42 of 100 (Notable)
Casper-Natrona Co AP	United States	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
Sandy Cape Lighthouse	Australia	Record daily precipitation	57.4 mm (2.3 in)	41 of 100 (Notable)
Milan	Italy	Record high maximum temperature	37.0 C (98.6 F)	41 of 100 (Notable)
Huejuquilla El Alto (Dge)	Mexico	Record low minimum temperature	3.9 C (39.0 F)	41 of 100 (Notable)
Temascalcingo	Mexico	Record high minimum temperature	18.9 C (66.0 F)	41 of 100 (Notable)
Tower 2S	United States	Record high maximum temperature	34.4 C (93.9 F)	41 of 100 (Notable)
Hacker Valley	United States	Record daily precipitation	72.1 mm (2.8 in)	41 of 100 (Notable)
San Diego Curupatzeo	Mexico	Record low minimum temperature	11.7 C (53.1 F)	40 of 100 (Notable)
Bangkok Metropolis	Thailand	Record daily precipitation	126.7 mm (5.0 in)	40 of 100 (Notable)
Nemours (Ghazaouet)	Algeria	Record high minimum temperature	24.5 C (76.1 F)	38 of 100 (Notable)
Theebine	Australia	Record daily precipitation	29.2 mm (1.1 in)	38 of 100 (Notable)
Imbil Post Office	Australia	Record daily precipitation	35.2 mm (1.4 in)	37 of 100 (Notable)
Anqing	China	Record daily precipitation	80.2 mm (3.2 in)	37 of 100 (Notable)
Castlewood	United States	Record high minimum temperature	21.1 C (70.0 F)	37 of 100 (Notable)
Deadwood	United States	Record high minimum temperature	17.8 C (64.0 F)	37 of 100 (Notable)
Biggenden Post Office	Australia	Record daily precipitation	34.2 mm (1.3 in)	36 of 100 (Notable)
Choshi	Japan	Record low minimum temperature	17.5 C (63.5 F)	36 of 100 (Notable)
Topo Chico	Mexico	Record low maximum temperature	22.8 C (73.0 F)	36 of 100 (Notable)
Teapa (Dge)	Mexico	Record low minimum temperature	18.9 C (66.0 F)	36 of 100 (Notable)
Yelabuga	Russia	Record daily precipitation	31.4 mm (1.2 in)	36 of 100 (Notable)
Bridger 2 N	United States	Record high maximum temperature	38.3 C (100.9 F)	36 of 100 (Notable)
Huerta Vieja	Mexico	Record low minimum temperature	3.9 C (39.0 F)	35 of 100 (Notable)
Riverton	United States	Record high minimum temperature	18.9 C (66.0 F)	35 of 100 (Notable)
Sunnydale	Australia	Record daily precipitation	35.4 mm (1.4 in)	34 of 100 (Routine)
Cooroy Composite	Australia	Record daily precipitation	37.1 mm (1.5 in)	34 of 100 (Routine)
Oxenford (Oberon Way)	Australia	Record daily precipitation	25.0 mm (1.0 in)	34 of 100 (Routine)
Qaqortoq	Greenland [Denmark]	Record daily precipitation	54.0 mm (2.1 in)	34 of 100 (Routine)
Olsdorf	Germany	Record daily precipitation	29.3 mm (1.2 in)	34 of 100 (Routine)
Motozintla (Smn)	Mexico	Record high minimum temperature	20.0 C (68.0 F)	34 of 100 (Routine)
Melstone	United States	Record high maximum temperature	39.4 C (102.9 F)	34 of 100 (Routine)
Goominglah	Australia	Record daily precipitation	27.6 mm (1.1 in)	33 of 100 (Routine)
Gympie	Australia	Record daily precipitation	26.2 mm (1.0 in)	33 of 100 (Routine)
Kandanga Post Office	Australia	Record daily precipitation	37.0 mm (1.5 in)	33 of 100 (Routine)
Las Bayas	Mexico	Record low minimum temperature	-6.1 C (21.0 F)	33 of 100 (Routine)
Enterprise 4 W	United States	Record daily precipitation	51.1 mm (2.0 in)	33 of 100 (Routine)
Sunbury	United States	Record daily precipitation	31.0 mm (1.2 in)	33 of 100 (Routine)
Kent	United States	Record high minimum temperature	17.2 C (63.0 F)	33 of 100 (Routine)
Tizi Ouzou	Algeria	Record high minimum temperature	25.6 C (78.1 F)	32 of 100 (Routine)
Yokosuka	Japan	Record low minimum temperature	17.8 C (64.0 F)	32 of 100 (Routine)
Marre-Sale	Russia	Record high minimum temperature	14.0 C (57.2 F)	32 of 100 (Routine)
Bridgehampton	United States	Record daily precipitation	32.0 mm (1.3 in)	32 of 100 (Routine)
Eureka	United States	Record high maximum temperature	40.6 C (105.1 F)	32 of 100 (Routine)
Orly	France	Record daily precipitation	30.0 mm (1.2 in)	31 of 100 (Routine)
San Felipe	Mexico	Record high maximum temperature	40.6 C (105.1 F)	31 of 100 (Routine)

Counts by Type and Timescale

948 records

Records set or tied on 17 August 2003 by type: Highest daily maximum 262, Lowest daily maximum 113, Highest daily minimum 234, Lowest daily minimum 80, Heaviest daily rainfall 259.

Records on 17 August 2003 by type
Record type	Records
Highest daily maximum	262
Lowest daily maximum	113
Highest daily minimum	234
Lowest daily minimum	80
Heaviest daily rainfall	259
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 August 2003 by timescale: all-time 1, monthly 26, daily 921.

How Much Records Were Beaten By

711 broken records

Margins by which the 711 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 49.9. Ties are not counted.

Top 20 by Significance

17 August 2003

Top 20 records on 17 August 2003 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 August 2003	Yoder 5 W, US	daily rain	40.6 mm (1.6 in)	27.9 mm (1.1 in)	65 years	67 of 100 (Major)
17 August 2003	Wialki, AU	daily rain	33.6 mm (1.3 in)	22.2 mm (0.9 in)	54 years	63 of 100 (Major)
17 August 2003	Grand Lake 1 NW, US	daily rain	45.0 mm (1.8 in)	20.6 mm (0.8 in)	41 years	60 of 100 (Major)
17 August 2003	Prachuap Khiri Khan, TH	daily rain	45.5 mm (1.8 in)	31.3 mm (1.2 in)	46 years	59 of 100 (Notable)
17 August 2003	Dobra Scritia, AU	daily rain	25.2 mm (1.0 in)	18.2 mm (0.7 in)	28 years	58 of 100 (Notable)
17 August 2003	Dalwallinu Comparison, AU	daily rain	27.3 mm (1.1 in)	16.9 mm (0.7 in)	30 years	54 of 100 (Notable)
17 August 2003	Saltillo, MX	daily rain	56.9 mm (2.2 in)	49.9 mm (2.0 in)	28 years	54 of 100 (Notable)
17 August 2003	Douglas 1 SE, US	daily rain	26.7 mm (1.1 in)	12.7 mm (0.5 in)	72 years	51 of 100 (Notable)
17 August 2003	Sundance, US	daily high max	37.2 C (99.0 F)	2.8 C (5.0 F)	104 years	46 of 100 (Notable)
17 August 2003	Miriam Vale, AU	daily rain	35.2 mm (1.4 in)	27.8 mm (1.1 in)	36 years	44 of 100 (Notable)
17 August 2003	Gallangowan Forestry, AU	daily rain	32.4 mm (1.3 in)	20.5 mm (0.8 in)	45 years	44 of 100 (Notable)
17 August 2003	Grand Lake 6 SSW, US	daily rain	26.7 mm (1.1 in)	9.7 mm (0.38 in)	46 years	44 of 100 (Notable)
17 August 2003	Table Tops, AU	daily rain	50.9 mm (2.0 in)	35.7 mm (1.4 in)	36 years	42 of 100 (Notable)
17 August 2003	Montville "Craglands", AU	daily rain	53.2 mm (2.1 in)	32.0 mm (1.3 in)	16 years	42 of 100 (Notable)
17 August 2003	Munchen-Nymphenburg, DE	daily high min	19.0 C (66.2 F)	0.6 C (1.1 F)	110 years	42 of 100 (Notable)
17 August 2003	Glasgow #2, US	daily high min	22.8 C (73.0 F)	4.5 C (8.1 F)	72 years	42 of 100 (Notable)
17 August 2003	Casper-Natrona Co AP, US	daily rain	25.4 mm (1.0 in)	10.9 mm (0.4 in)	42 years	42 of 100 (Notable)
17 August 2003	Sandy Cape Lighthouse, AU	daily rain	57.4 mm (2.3 in)	31.2 mm (1.2 in)	16 years	41 of 100 (Notable)
17 August 2003	Milan, IT	daily high max	37.0 C (98.6 F)	0.6 C (1.1 F)	141 years	41 of 100 (Notable)
17 August 2003	Huejuquilla El Alto (Dge), MX	daily low min	3.9 C (39.0 F)	5.0 C (9.0 F)	40 years	41 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

1797 to 2003

Records set or tied on this calendar date in each year from 1797 to 2003. 2003 had 948 records.

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

Records on 08-17 in each year
Year	Records
1797	2
1802	2
1820	2
1837	1
1838	2
1841	2
1842	1
1845	2
1853	1
1854	1
1856	1
1857	1
1861	3
1862	1
1867	1
1868	3
1869	1
1872	1
1875	2
1876	5
1879	1
1881	1
1882	1
1883	2
1885	3
1886	1
1888	5
1891	1
1892	3
1893	2
1894	3
1895	2
1896	3
1897	1
1898	5
1899	8
1900	3
1901	14
1902	7
1903	6
1904	2
1905	11
1906	28
1907	9
1908	26
1909	24
1910	17
1911	18
1912	31
1913	79
1914	41
1915	28
1916	33
1917	35
1918	112
1919	37
1920	110
1921	37
1922	169
1923	161
1924	171
1925	130
1926	182
1927	228
1928	131
1929	243
1930	138
1931	302
1932	360
1933	260
1934	377
1935	437
1936	670
1937	726
1938	466
1939	364
1940	341
1941	378
1942	461
1943	743
1944	531
1945	387
1946	433
1947	682
1948	475
1949	371
1950	522
1951	413
1952	470
1953	345
1954	685
1955	465
1956	407
1957	504
1958	519
1959	543
1960	533
1961	998
1962	445
1963	650
1964	410
1965	641
1966	496
1967	679
1968	953
1969	593
1970	467
1971	447
1972	1,044
1973	750
1974	582
1975	612
1976	797
1977	1,216
1978	814
1979	1,464
1980	895
1981	1,112
1982	554
1983	1,574
1984	726
1985	948
1986	916
1987	1,150
1988	1,608
1989	687
1990	949
1991	560
1992	1,813
1993	803
1994	1,038
1995	1,724
1996	752
1997	1,544
1998	1,003
1999	697
2000	994
2001	1,101
2002	1,266
2003	948
2004	1,046
2005	722
2006	814
2007	1,646
2008	1,301
2009	922
2010	1,105
2011	956
2012	1,215
2013	802
2014	997
2015	890
2016	748
2017	544
2018	518
2019	467
2020	1,529
2021	800
2022	1,428
2023	1,032
2024	740
2025	538
2026	535

Download the Data

Data for records on 2003-08-17: 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 2026-10-16 (16 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).

Histogram of margins by which records were beaten on 17 August 2003
Margin	Records
0 to 10	628
10 to 20	57
20 to 30	14
30 to 40	7
40 to 50	5