Weather Records on 8 August 2017

831 weather records were set or tied worldwide on 8 August 2017. Highest significance: Moorhead, US.

Key Facts for 8 August 2017

On 8 August 2017, 831 weather records were set or tied at long-record stations worldwide.
269 were record highs and 267 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 16 monthly and 813 daily.
Moorhead set a daily record precipitation of 106.7 mm (4.2 in) on 8 August 2017.
Across 162 earlier years (1793 to 2026) the same calendar date averaged 465 records.

Record Map

831 stations

831 station records on 8 August 2017 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 8 August 2017: highest significance records shown on the map
Station	Country	Type	Value	Significance
Moorhead	United States	Record daily precipitation	106.7 mm (4.2 in)	77 of 100 (Major)
Katy City	United States	Record daily precipitation	213.4 mm (8.4 in)	68 of 100 (Major)
Liberty	United States	Record daily precipitation	101.6 mm (4.0 in)	68 of 100 (Major)
Wakayama	Japan	Record daily precipitation	141.0 mm (5.6 in)	63 of 100 (Major)
Turocak	Russia	Record daily precipitation	65.0 mm (2.6 in)	57 of 100 (Notable)
Keithville	United States	Record daily precipitation	108.2 mm (4.3 in)	56 of 100 (Notable)
Rural Hall	United States	Record daily precipitation	54.9 mm (2.2 in)	56 of 100 (Notable)
Craters of the Moon	United States	Record daily precipitation	26.9 mm (1.1 in)	54 of 100 (Notable)
Waterville 2	United States	Record daily precipitation	57.7 mm (2.3 in)	54 of 100 (Notable)
Port-Aux-Francais (Iles Kergu	France	Record daily precipitation	41.9 mm (1.6 in)	53 of 100 (Notable)
Petaluma AP	United States	Record high minimum temperature	17.2 C (63.0 F)	53 of 100 (Notable)
Meadville	United States	Record daily precipitation	59.4 mm (2.3 in)	53 of 100 (Notable)
Rosa Brook	Australia	Record daily precipitation	46.2 mm (1.8 in)	52 of 100 (Notable)
Cape Naturaliste	Australia	Record daily precipitation	36.8 mm (1.4 in)	51 of 100 (Notable)
Chernjaevo	Russia	Record daily precipitation	34.1 mm (1.3 in)	51 of 100 (Notable)
Steel Creek Park	United States	Record daily precipitation	25.4 mm (1.0 in)	51 of 100 (Notable)
Tsu	Japan	Record daily precipitation	122.4 mm (4.8 in)	50 of 100 (Notable)
Portland	United States	Record daily precipitation	125.5 mm (4.9 in)	50 of 100 (Notable)
Maizuru Reg Met HQ	Japan	Record daily precipitation	79.0 mm (3.1 in)	49 of 100 (Notable)
Kassler	United States	Record low maximum temperature	17.8 C (64.0 F)	49 of 100 (Notable)
Piedmont Rsch STN	United States	Record daily precipitation	56.9 mm (2.2 in)	49 of 100 (Notable)
Houston Intercontinental AP	United States	Record daily precipitation	91.7 mm (3.6 in)	49 of 100 (Notable)
Heeg	Netherlands	Record daily precipitation	32.5 mm (1.3 in)	48 of 100 (Notable)
Canon City	United States	Record low maximum temperature	17.8 C (64.0 F)	48 of 100 (Notable)
Cypress	United States	Record daily precipitation	97.8 mm (3.9 in)	48 of 100 (Notable)
Yoongarillup	Australia	Record daily precipitation	70.6 mm (2.8 in)	47 of 100 (Notable)
Stoneville Exp STN	United States	Record daily precipitation	107.2 mm (4.2 in)	47 of 100 (Notable)
Chesalon	Australia	Record daily precipitation	36.0 mm (1.4 in)	46 of 100 (Notable)
Tsuruga	Japan	Record daily precipitation	145.0 mm (5.7 in)	46 of 100 (Notable)
Homer 1N	United States	Record daily precipitation	81.8 mm (3.2 in)	46 of 100 (Notable)
Kosciusko	United States	Record daily precipitation	43.4 mm (1.7 in)	46 of 100 (Notable)
Roxboro 7 ESE	United States	Record daily precipitation	49.5 mm (1.9 in)	46 of 100 (Notable)
Baytown	United States	Record daily precipitation	82.6 mm (3.3 in)	46 of 100 (Notable)
Fernandina Beach	United States	Record low minimum temperature	19.4 C (66.9 F)	45 of 100 (Notable)
Winfield 3NE	United States	Record low maximum temperature	23.9 C (75.0 F)	45 of 100 (Notable)
Lambert 1W	United States	Record daily precipitation	74.9 mm (2.9 in)	45 of 100 (Notable)
Marshall	United States	Record daily precipitation	54.4 mm (2.1 in)	45 of 100 (Notable)
Smithville	United States	Record low maximum temperature	27.2 C (81.0 F)	45 of 100 (Notable)
Staunton Wtp	United States	Record daily precipitation	54.4 mm (2.1 in)	45 of 100 (Notable)
Hikone	Japan	Record daily precipitation	78.0 mm (3.1 in)	44 of 100 (Notable)
Coffeeville	United States	Record daily precipitation	76.5 mm (3.0 in)	44 of 100 (Notable)
Albany	Australia	Record high minimum temperature	13.9 C (57.0 F)	43 of 100 (Notable)
Rison	United States	Record low maximum temperature	27.8 C (82.0 F)	43 of 100 (Notable)
Rockville	United States	Record low minimum temperature	8.9 C (48.0 F)	43 of 100 (Notable)
Norwich	United States	Record low maximum temperature	23.9 C (75.0 F)	43 of 100 (Notable)
Hooker 12 NNW	United States	Record daily precipitation	31.8 mm (1.3 in)	43 of 100 (Notable)
Port Jervis	United States	Record low maximum temperature	17.8 C (64.0 F)	43 of 100 (Notable)
Encinal	United States	Record daily precipitation	69.1 mm (2.7 in)	43 of 100 (Notable)
Jasper	United States	Record daily precipitation	81.3 mm (3.2 in)	43 of 100 (Notable)
Tuscaloosa AP ASOS	United States	Record daily precipitation	56.1 mm (2.2 in)	43 of 100 (Notable)
Ruston la Tech	United States	Record daily precipitation	55.4 mm (2.2 in)	42 of 100 (Notable)
Water Valley	United States	Record daily precipitation	54.1 mm (2.1 in)	42 of 100 (Notable)
Bellville 6NNE	United States	Record daily precipitation	80.8 mm (3.2 in)	42 of 100 (Notable)
Busselton Shire	Australia	Record daily precipitation	48.4 mm (1.9 in)	41 of 100 (Notable)
Gyzylarbat	Turkmenistan	Record high maximum temperature	43.4 C (110.1 F)	41 of 100 (Notable)
Bailey	United States	Record daily precipitation	26.2 mm (1.0 in)	41 of 100 (Notable)
Waterdale	United States	Record low maximum temperature	17.2 C (63.0 F)	41 of 100 (Notable)
Ottawa	United States	Record low maximum temperature	25.6 C (78.1 F)	41 of 100 (Notable)
Pratt 3NW	United States	Record low maximum temperature	23.9 C (75.0 F)	41 of 100 (Notable)
Clarksdale	United States	Record daily precipitation	34.3 mm (1.4 in)	41 of 100 (Notable)

Counts by Type and Timescale

831 records

Records set or tied on 8 August 2017 by type: Highest daily maximum 101, Lowest daily maximum 224, Highest daily minimum 168, Lowest daily minimum 43, Heaviest daily rainfall 295.

Records on 8 August 2017 by type
Record type	Records
Highest daily maximum	101
Lowest daily maximum	224
Highest daily minimum	168
Lowest daily minimum	43
Heaviest daily rainfall	295
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 8 August 2017 by timescale: all-time 2, monthly 16, daily 813.

How Much Records Were Beaten By

673 broken records

Margins by which the 673 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 106.0. Ties are not counted.

Top 20 by Significance

8 August 2017

Top 20 records on 8 August 2017 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
8 August 2017	Moorhead, US	daily rain	106.7 mm (4.2 in)	53.4 mm (2.1 in)	100 years	77 of 100 (Major)
8 August 2017	Katy City, US	monthly rain	213.4 mm (8.4 in)	106.0 mm (4.2 in)	42 years	68 of 100 (Major)
8 August 2017	Liberty, US	daily rain	101.6 mm (4.0 in)	54.6 mm (2.1 in)	96 years	68 of 100 (Major)
8 August 2017	Wakayama, JP	daily rain	141.0 mm (5.6 in)	102.6 mm (4.0 in)	58 years	63 of 100 (Major)
8 August 2017	Turocak, RU	daily rain	65.0 mm (2.6 in)	37.1 mm (1.5 in)	32 years	57 of 100 (Notable)
8 August 2017	Keithville, US	daily rain	108.2 mm (4.3 in)	77.0 mm (3.0 in)	32 years	56 of 100 (Notable)
8 August 2017	Rural Hall, US	daily rain	54.9 mm (2.2 in)	39.2 mm (1.5 in)	64 years	56 of 100 (Notable)
8 August 2017	Craters of the Moon, US	daily rain	26.9 mm (1.1 in)	19.3 mm (0.8 in)	34 years	54 of 100 (Notable)
8 August 2017	Waterville 2, US	daily rain	57.7 mm (2.3 in)	38.4 mm (1.5 in)	43 years	54 of 100 (Notable)
8 August 2017	Port-Aux-Francais (Iles Kergu, FR	daily rain	41.9 mm (1.6 in)	30.0 mm (1.2 in)	32 years	53 of 100 (Notable)
8 August 2017	Petaluma AP, US	daily high min	17.2 C (63.0 F)	2.8 C (5.0 F)	104 years	53 of 100 (Notable)
8 August 2017	Meadville, US	daily rain	59.4 mm (2.3 in)	26.6 mm (1.0 in)	96 years	53 of 100 (Notable)
8 August 2017	Rosa Brook, AU	daily rain	46.2 mm (1.8 in)	21.6 mm (0.9 in)	72 years	52 of 100 (Notable)
8 August 2017	Cape Naturaliste, AU	daily rain	36.8 mm (1.4 in)	13.2 mm (0.5 in)	72 years	51 of 100 (Notable)
8 August 2017	Chernjaevo, RU	daily rain	34.1 mm (1.3 in)	17.8 mm (0.7 in)	82 years	51 of 100 (Notable)
8 August 2017	Steel Creek Park, US	daily rain	25.4 mm (1.0 in)	20.3 mm (0.8 in)	24 years	51 of 100 (Notable)
8 August 2017	Tsu, JP	daily rain	122.4 mm (4.8 in)	81.0 mm (3.2 in)	58 years	50 of 100 (Notable)
8 August 2017	Portland, US	daily rain	125.5 mm (4.9 in)	101.1 mm (4.0 in)	0 years	50 of 100 (Notable)
8 August 2017	Maizuru Reg Met HQ, JP	daily rain	79.0 mm (3.1 in)	51.1 mm (2.0 in)	58 years	49 of 100 (Notable)
8 August 2017	Kassler, US	daily low max	17.8 C (64.0 F)	4.4 C (7.9 F)	90 years	49 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

1793 to 2017

Records set or tied on this calendar date in each year from 1793 to 2017. 2017 had 831 records.

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

Records on 08-08 in each year
Year	Records
1793	1
1798	1
1800	1
1808	3
1815	1
1833	1
1843	1
1844	2
1845	1
1854	1
1859	3
1860	1
1861	1
1863	1
1865	1
1868	2
1869	1
1871	1
1873	3
1875	2
1876	2
1877	1
1878	1
1879	2
1880	1
1884	3
1888	3
1890	2
1891	1
1892	2
1893	1
1895	8
1896	2
1897	5
1898	10
1899	8
1900	11
1901	2
1902	2
1903	20
1904	13
1905	7
1906	9
1907	9
1908	13
1909	34
1910	5
1911	38
1912	57
1913	28
1914	7
1915	47
1916	39
1917	35
1918	160
1919	28
1920	138
1921	42
1922	74
1923	70
1924	99
1925	149
1926	190
1927	278
1928	252
1929	166
1930	801
1931	318
1932	234
1933	228
1934	734
1935	508
1936	359
1937	362
1938	855
1939	671
1940	333
1941	324
1942	614
1943	512
1944	352
1945	572
1946	349
1947	442
1948	543
1949	675
1950	516
1951	513
1952	305
1953	393
1954	558
1955	537
1956	273
1957	517
1958	496
1959	470
1960	399
1961	270
1962	567
1963	601
1964	467
1965	520
1966	598
1967	432
1968	868
1969	584
1970	703
1971	646
1972	1,073
1973	446
1974	726
1975	1,041
1976	1,202
1977	607
1978	976
1979	466
1980	919
1981	964
1982	711
1983	1,110
1984	619
1985	726
1986	575
1987	861
1988	733
1989	2,398
1990	1,124
1991	1,230
1992	1,267
1993	654
1994	1,009
1995	1,503
1996	814
1997	1,381
1998	1,304
1999	1,248
2000	961
2001	1,557
2002	1,059
2003	1,432
2004	1,115
2005	882
2006	842
2007	1,660
2008	834
2009	1,112
2010	1,254
2011	1,256
2012	754
2013	841
2014	542
2015	835
2016	560
2017	831
2018	731
2019	722
2020	894
2021	502
2022	711
2023	979
2024	774
2025	752
2026	1,000

Download the Data

Data for records on 2017-08-08: 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 20	605
20 to 40	42
40 to 60	16
60 to 80	5
80 to 100	2
100 to 120	3