Weather Records on 17 August 2008

1,301 weather records were set or tied worldwide on 17 August 2008. Highest significance: Chattanooga, US.

Key Facts for 17 August 2008

On 17 August 2008, 1,301 weather records were set or tied at long-record stations worldwide.
593 were record highs and 491 were record lows, counting maximum and minimum temperature.
By timescale, 13 were all-time records, 50 monthly and 1,238 daily.
Chattanooga set a daily record precipitation of 96.5 mm (3.8 in) on 17 August 2008.
Across 162 earlier years (1797 to 2026) the same calendar date averaged 469 records.

Record Map

1,301 stations

1,301 station records on 17 August 2008 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 August 2008: highest significance records shown on the map
Station	Country	Type	Value	Significance
Chattanooga	United States	Record daily precipitation	96.5 mm (3.8 in)	75 of 100 (Major)
Changsha	China	Record daily precipitation	99.1 mm (3.9 in)	58 of 100 (Notable)
Aldergrove	United Kingdom	Record daily precipitation	57.9 mm (2.3 in)	58 of 100 (Notable)
Cerritos	Mexico	Record daily precipitation	135.9 mm (5.4 in)	57 of 100 (Notable)
Bailey	United States	Record low maximum temperature	10.6 C (51.1 F)	57 of 100 (Notable)
Headworks Portland Wtr B	United States	Record high minimum temperature	22.2 C (72.0 F)	55 of 100 (Notable)
Enisejsk	Russia	Record daily precipitation	35.1 mm (1.4 in)	53 of 100 (Notable)
Kljuchi	Russia	Record daily precipitation	31.4 mm (1.2 in)	51 of 100 (Notable)
Ft Morgan	United States	Record low maximum temperature	17.8 C (64.0 F)	49 of 100 (Notable)
Wray	United States	Record low maximum temperature	21.1 C (70.0 F)	49 of 100 (Notable)
Calhoun 2 N	United States	Record low maximum temperature	23.3 C (73.9 F)	49 of 100 (Notable)
Olga 2 SE	United States	Record high minimum temperature	15.6 C (60.1 F)	49 of 100 (Notable)
Corpus Christi	United States	Record daily precipitation	90.7 mm (3.6 in)	49 of 100 (Notable)
Puerto de la Concepcion	Mexico	Record daily precipitation	63.5 mm (2.5 in)	48 of 100 (Notable)
Grant	United States	Record low maximum temperature	8.9 C (48.0 F)	48 of 100 (Notable)
Rio Grande City	United States	Record daily precipitation	61.0 mm (2.4 in)	48 of 100 (Notable)
Kremsmuenster	Austria	Record low minimum temperature	7.3 C (45.1 F)	47 of 100 (Notable)
Villa Hidalgo	Mexico	Record daily precipitation	68.6 mm (2.7 in)	47 of 100 (Notable)
Susanville 2SW	United States	Record high minimum temperature	18.3 C (64.9 F)	47 of 100 (Notable)
Castle Rock	United States	Record low maximum temperature	12.8 C (55.0 F)	47 of 100 (Notable)
Brownwood 2NE	United States	Record low maximum temperature	23.9 C (75.0 F)	47 of 100 (Notable)
Villa Juarez	Mexico	Record daily precipitation	73.7 mm (2.9 in)	46 of 100 (Notable)
Nezperce	United States	Record high maximum temperature	41.1 C (106.0 F)	46 of 100 (Notable)
McKenzie Rvr Rs	United States	Record high minimum temperature	19.4 C (66.9 F)	46 of 100 (Notable)
Vancouver 4 NNE	United States	Record high minimum temperature	19.4 C (66.9 F)	46 of 100 (Notable)
Canon City	United States	Record low maximum temperature	16.7 C (62.1 F)	45 of 100 (Notable)
Georgetown	United States	Record low maximum temperature	11.1 C (52.0 F)	45 of 100 (Notable)
Todos Santos (Dge)	Mexico	Record high maximum temperature	40.0 C (104.0 F)	44 of 100 (Notable)
Dolinovka	Russia	Record daily precipitation	31.4 mm (1.2 in)	44 of 100 (Notable)
Manassa	United States	Record low maximum temperature	16.7 C (62.1 F)	44 of 100 (Notable)
Woodville 4 ESE	United States	Record low maximum temperature	25.6 C (78.1 F)	44 of 100 (Notable)
Estacada 2 SE	United States	Record high minimum temperature	18.3 C (64.9 F)	44 of 100 (Notable)
Falls City 2 SSW	United States	Record high minimum temperature	17.2 C (63.0 F)	44 of 100 (Notable)
Ballinger 2 NW	United States	Record low maximum temperature	22.8 C (73.0 F)	44 of 100 (Notable)
Douglas 1 SE	United States	Record low maximum temperature	18.3 C (64.9 F)	44 of 100 (Notable)
Boise City 2 E	United States	Record low maximum temperature	17.8 C (64.0 F)	43 of 100 (Notable)
Pendleton Dwtn	United States	Record high maximum temperature	41.7 C (107.1 F)	43 of 100 (Notable)
Eastland	United States	Record low maximum temperature	24.4 C (75.9 F)	43 of 100 (Notable)
Wilbur	United States	Record high minimum temperature	19.4 C (66.9 F)	43 of 100 (Notable)
Childress Muni AP	United States	Record daily precipitation	47.8 mm (1.9 in)	43 of 100 (Notable)
Acambaro	Mexico	Record daily precipitation	56.9 mm (2.2 in)	42 of 100 (Notable)
Leeming	United Kingdom	Record daily precipitation	32.5 mm (1.3 in)	42 of 100 (Notable)
Minden	United States	Record low maximum temperature	23.9 C (75.0 F)	42 of 100 (Notable)
Brownwood 2NE	United States	Record daily precipitation	38.9 mm (1.5 in)	42 of 100 (Notable)
George W 2 SSW	United States	Record daily precipitation	37.3 mm (1.5 in)	42 of 100 (Notable)
Sedro-Woolley	United States	Record high minimum temperature	16.7 C (62.1 F)	42 of 100 (Notable)
Xicatlacotla (Cfe)	Mexico	Record daily precipitation	62.7 mm (2.5 in)	41 of 100 (Notable)
Presa de Guadalupe	Mexico	Record daily precipitation	39.9 mm (1.6 in)	41 of 100 (Notable)
Torsas	Sweden	Record daily precipitation	36.7 mm (1.4 in)	41 of 100 (Notable)
Rison	United States	Record low maximum temperature	29.4 C (84.9 F)	41 of 100 (Notable)
Akron 4 E	United States	Record low maximum temperature	17.8 C (64.0 F)	41 of 100 (Notable)
Mancos 1SW	United States	Record low minimum temperature	5.0 C (41.0 F)	41 of 100 (Notable)
Sterling	United States	Record low maximum temperature	20.6 C (69.1 F)	41 of 100 (Notable)
Potlatch 3 NNE	United States	Record high minimum temperature	15.0 C (59.0 F)	41 of 100 (Notable)
Grants Pass	United States	Record high minimum temperature	20.0 C (68.0 F)	41 of 100 (Notable)
Pilot Rock 1 SE	United States	Record high maximum temperature	42.8 C (109.0 F)	41 of 100 (Notable)
Carthage	United States	Record low minimum temperature	11.7 C (53.1 F)	41 of 100 (Notable)
Midland 4 ENE	United States	Record low maximum temperature	22.2 C (72.0 F)	41 of 100 (Notable)
Colville	United States	Record high maximum temperature	40.0 C (104.0 F)	41 of 100 (Notable)
Snoqualmie Falls	United States	Record high minimum temperature	18.3 C (64.9 F)	41 of 100 (Notable)

Counts by Type and Timescale

1,301 records

Records set or tied on 17 August 2008 by type: Highest daily maximum 296, Lowest daily maximum 352, Highest daily minimum 297, Lowest daily minimum 139, Heaviest daily rainfall 217.

Records on 17 August 2008 by type
Record type	Records
Highest daily maximum	296
Lowest daily maximum	352
Highest daily minimum	297
Lowest daily minimum	139
Heaviest daily rainfall	217
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 August 2008 by timescale: all-time 13, monthly 50, daily 1,238.

How Much Records Were Beaten By

978 broken records

Margins by which the 978 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 75.1. Ties are not counted.

Top 20 by Significance

17 August 2008

Top 20 records on 17 August 2008 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 August 2008	Chattanooga, US	daily rain	96.5 mm (3.8 in)	68.1 mm (2.7 in)	84 years	75 of 100 (Major)
17 August 2008	Changsha, CN	daily rain	99.1 mm (3.9 in)	75.1 mm (3.0 in)	53 years	58 of 100 (Notable)
17 August 2008	Aldergrove, GB	monthly rain	57.9 mm (2.3 in)	19.8 mm (0.8 in)	32 years	58 of 100 (Notable)
17 August 2008	Cerritos, MX	monthly rain	135.9 mm (5.4 in)	42.9 mm (1.7 in)	39 years	57 of 100 (Notable)
17 August 2008	Bailey, US	daily low max	10.6 C (51.1 F)	9.4 C (16.9 F)	65 years	57 of 100 (Notable)
17 August 2008	Headworks Portland Wtr B, US	monthly high min	22.2 C (72.0 F)	1.6 C (2.9 F)	98 years	55 of 100 (Notable)
17 August 2008	Enisejsk, RU	daily rain	35.1 mm (1.4 in)	14.6 mm (0.6 in)	60 years	53 of 100 (Notable)
17 August 2008	Kljuchi, RU	daily rain	31.4 mm (1.2 in)	15.0 mm (0.6 in)	73 years	51 of 100 (Notable)
17 August 2008	Ft Morgan, US	daily low max	17.8 C (64.0 F)	4.4 C (7.9 F)	98 years	49 of 100 (Notable)
17 August 2008	Wray, US	daily low max	21.1 C (70.0 F)	3.9 C (7.0 F)	100 years	49 of 100 (Notable)
17 August 2008	Calhoun 2 N, US	daily low max	23.3 C (73.9 F)	3.4 C (6.1 F)	93 years	49 of 100 (Notable)
17 August 2008	Olga 2 SE, US	daily high min	15.6 C (60.1 F)	1.7 C (3.1 F)	105 years	49 of 100 (Notable)
17 August 2008	Corpus Christi, US	daily rain	90.7 mm (3.6 in)	69.6 mm (2.7 in)	41 years	49 of 100 (Notable)
17 August 2008	Puerto de la Concepcion, MX	daily rain	63.5 mm (2.5 in)	37.3 mm (1.5 in)	20 years	48 of 100 (Notable)
17 August 2008	Grant, US	daily low max	8.9 C (48.0 F)	9.4 C (16.9 F)	43 years	48 of 100 (Notable)
17 August 2008	Rio Grande City, US	daily rain	61.0 mm (2.4 in)	41.9 mm (1.6 in)	35 years	48 of 100 (Notable)
17 August 2008	Kremsmuenster, AT	daily low min	7.3 C (45.1 F)	1.9 C (3.4 F)	111 years	47 of 100 (Notable)
17 August 2008	Villa Hidalgo, MX	daily rain	68.6 mm (2.7 in)	62.8 mm (2.5 in)	10 years	47 of 100 (Notable)
17 August 2008	Susanville 2SW, US	daily high min	18.3 C (64.9 F)	2.7 C (4.9 F)	112 years	47 of 100 (Notable)
17 August 2008	Castle Rock, US	daily low max	12.8 C (55.0 F)	2.8 C (5.0 F)	98 years	47 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 2008

Records set or tied on this calendar date in each year from 1797 to 2008. 2008 had 1,301 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 2008-08-17: 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 2026-10-17 (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 10	890
10 to 20	51
20 to 30	16
30 to 40	9
40 to 50	5
50 to 60	1
60 to 70	3
70 to 80	3