Weather Records on 17 August 2017

544 weather records were set or tied worldwide on 17 August 2017. Highest significance: Marshall, US.

Key Facts for 17 August 2017

On 17 August 2017, 544 weather records were set or tied at long-record stations worldwide.
303 were record highs and 61 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 10 monthly and 531 daily.
Marshall set a daily record precipitation of 93.0 mm (3.7 in) on 17 August 2017.
Across 162 earlier years (1797 to 2026) the same calendar date averaged 473 records.

Record Map

544 stations

544 station records on 17 August 2017 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 August 2017: highest significance records shown on the map
Station	Country	Type	Value	Significance
Marshall	United States	Record daily precipitation	93.0 mm (3.7 in)	69 of 100 (Major)
Montevideo 1SW	United States	Record daily precipitation	90.7 mm (3.6 in)	65 of 100 (Major)
Tanguj	Russia	Record daily precipitation	49.0 mm (1.9 in)	62 of 100 (Major)
Ellendale Post Office	Australia	Record daily precipitation	33.0 mm (1.3 in)	57 of 100 (Notable)
Parsons 2 NW	United States	Record daily precipitation	95.3 mm (3.8 in)	57 of 100 (Notable)
Redwood Falls	United States	Record daily precipitation	206.2 mm (8.1 in)	57 of 100 (Notable)
Tracy	United States	Record daily precipitation	62.7 mm (2.5 in)	57 of 100 (Notable)
Raoul Isl/Kermadec	New Zealand	Record daily precipitation	81.3 mm (3.2 in)	55 of 100 (Notable)
Coulta	Australia	Record daily precipitation	27.0 mm (1.1 in)	54 of 100 (Notable)
Walnut 4S	United States	Record daily precipitation	90.7 mm (3.6 in)	54 of 100 (Notable)
Canby	United States	Record daily precipitation	60.2 mm (2.4 in)	54 of 100 (Notable)
Minneota	United States	Record daily precipitation	80.0 mm (3.1 in)	54 of 100 (Notable)
Licking 4N	United States	Record daily precipitation	102.9 mm (4.1 in)	52 of 100 (Notable)
Madison Wwtp	United States	Record daily precipitation	58.4 mm (2.3 in)	51 of 100 (Notable)
St Charles Elm Pt	United States	Record daily precipitation	51.3 mm (2.0 in)	51 of 100 (Notable)
Denton 2 SE	United States	Record daily precipitation	55.9 mm (2.2 in)	51 of 100 (Notable)
Hibbing Chisholm Hibbing AP	United States	Record daily precipitation	60.2 mm (2.4 in)	51 of 100 (Notable)
Pine Rvr Dam	United States	Record daily precipitation	63.2 mm (2.5 in)	49 of 100 (Notable)
Pecos Nm	United States	Record low minimum temperature	1.7 C (35.1 F)	49 of 100 (Notable)
Clear Lake	United States	Record daily precipitation	44.7 mm (1.8 in)	49 of 100 (Notable)
Nizhneudinsk	Russia	Record daily precipitation	52.1 mm (2.1 in)	48 of 100 (Notable)
Pipestone	United States	Record daily precipitation	67.8 mm (2.7 in)	48 of 100 (Notable)
Girard	United States	Record daily precipitation	66.8 mm (2.6 in)	47 of 100 (Notable)
Vesta	United States	Record daily precipitation	101.1 mm (4.0 in)	47 of 100 (Notable)
Academy 2NE	United States	Record low maximum temperature	19.4 C (66.9 F)	47 of 100 (Notable)
Gull Lake Dam	United States	Record daily precipitation	63.0 mm (2.5 in)	46 of 100 (Notable)
Chippewa Falls	United States	Record daily precipitation	43.7 mm (1.7 in)	46 of 100 (Notable)
Palmerville	Australia	Record high maximum temperature	36.1 C (97.0 F)	45 of 100 (Notable)
Lake Park 3SSE	United States	Record daily precipitation	83.8 mm (3.3 in)	45 of 100 (Notable)
North Shields (Port Lincoln Ae	Australia	Record daily precipitation	27.0 mm (1.1 in)	44 of 100 (Notable)
Hvar	Croatia	Record high maximum temperature	35.5 C (95.9 F)	44 of 100 (Notable)
Paraiso	Puerto Rico [United States]	Record daily precipitation	137.2 mm (5.4 in)	44 of 100 (Notable)
Jefferson City Wtp	United States	Record daily precipitation	49.0 mm (1.9 in)	44 of 100 (Notable)
Tyndall	United States	Record low maximum temperature	20.6 C (69.1 F)	43 of 100 (Notable)
Mount Buller	Australia	Record daily precipitation	44.2 mm (1.7 in)	42 of 100 (Notable)
Pokegama Dam	United States	Record daily precipitation	73.2 mm (2.9 in)	42 of 100 (Notable)
O'Neill	United States	Record low maximum temperature	20.6 C (69.1 F)	42 of 100 (Notable)
Llano	United States	Record high minimum temperature	26.1 C (79.0 F)	42 of 100 (Notable)
Sault Ste Marie Sanderson Fld	United States	Record daily precipitation	71.9 mm (2.8 in)	42 of 100 (Notable)
Newport	United States	Record low maximum temperature	18.9 C (66.0 F)	41 of 100 (Notable)
Tishomingo Natl Wr	United States	Record daily precipitation	48.3 mm (1.9 in)	41 of 100 (Notable)
Gregory	United States	Record daily precipitation	29.2 mm (1.1 in)	41 of 100 (Notable)
Brainerd	United States	Record daily precipitation	58.9 mm (2.3 in)	40 of 100 (Notable)
Prague 2W	United States	Record daily precipitation	47.8 mm (1.9 in)	40 of 100 (Notable)
Sherman	United States	Record daily precipitation	89.2 mm (3.5 in)	40 of 100 (Notable)
Hayward Rs	United States	Record daily precipitation	41.9 mm (1.6 in)	40 of 100 (Notable)
Redwood Falls Muni AP	United States	Record daily precipitation	42.2 mm (1.7 in)	40 of 100 (Notable)
Yellow Jacket 2W	United States	Record low minimum temperature	2.8 C (37.0 F)	39 of 100 (Notable)
Dawson	United States	Record daily precipitation	68.6 mm (2.7 in)	39 of 100 (Notable)
St Charles 7 SSW	United States	Record daily precipitation	55.4 mm (2.2 in)	39 of 100 (Notable)
Duncan	United States	Record daily precipitation	45.0 mm (1.8 in)	39 of 100 (Notable)
Smithville	United States	Record high minimum temperature	27.2 C (81.0 F)	39 of 100 (Notable)
Chita	Russia	Record high minimum temperature	18.1 C (64.6 F)	38 of 100 (Notable)
Mayville	United States	Record low maximum temperature	18.9 C (66.0 F)	38 of 100 (Notable)
Soljanka	Russia	Record daily precipitation	29.5 mm (1.2 in)	37 of 100 (Notable)
Minden	United States	Record high minimum temperature	26.1 C (79.0 F)	37 of 100 (Notable)
Melrose	United States	Record daily precipitation	80.8 mm (3.2 in)	37 of 100 (Notable)
Brookings 2 NE	United States	Record daily precipitation	55.6 mm (2.2 in)	37 of 100 (Notable)
Burnet	United States	Record high minimum temperature	25.6 C (78.1 F)	37 of 100 (Notable)
Indus 3 W	United States	Record daily precipitation	61.0 mm (2.4 in)	36 of 100 (Notable)

Counts by Type and Timescale

544 records

Records set or tied on 17 August 2017 by type: Highest daily maximum 74, Lowest daily maximum 31, Highest daily minimum 229, Lowest daily minimum 30, Heaviest daily rainfall 180.

Records on 17 August 2017 by type
Record type	Records
Highest daily maximum	74
Lowest daily maximum	31
Highest daily minimum	229
Lowest daily minimum	30
Heaviest daily rainfall	180
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 August 2017 by timescale: all-time 3, monthly 10, daily 531.

How Much Records Were Beaten By

413 broken records

Margins by which the 413 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 78.7. Ties are not counted.

Top 20 by Significance

17 August 2017

Top 20 records on 17 August 2017 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 August 2017	Marshall, US	daily rain	93.0 mm (3.7 in)	75.7 mm (3.0 in)	72 years	69 of 100 (Major)
17 August 2017	Montevideo 1SW, US	daily rain	90.7 mm (3.6 in)	39.9 mm (1.6 in)	92 years	65 of 100 (Major)
17 August 2017	Tanguj, RU	daily rain	49.0 mm (1.9 in)	28.2 mm (1.1 in)	67 years	62 of 100 (Major)
17 August 2017	Ellendale Post Office, AU	daily rain	33.0 mm (1.3 in)	10.9 mm (0.4 in)	110 years	57 of 100 (Notable)
17 August 2017	Parsons 2 NW, US	daily rain	95.3 mm (3.8 in)	34.3 mm (1.4 in)	91 years	57 of 100 (Notable)
17 August 2017	Redwood Falls, US	all-time rain	206.2 mm (8.1 in)	55.3 mm (2.2 in)	23 years	57 of 100 (Notable)
17 August 2017	Tracy, US	daily rain	62.7 mm (2.5 in)	30.7 mm (1.2 in)	70 years	57 of 100 (Notable)
17 August 2017	Raoul Isl/Kermadec, NZ	daily rain	81.3 mm (3.2 in)	60.2 mm (2.4 in)	36 years	55 of 100 (Notable)
17 August 2017	Coulta, AU	daily rain	27.0 mm (1.1 in)	7.4 mm (0.29 in)	111 years	54 of 100 (Notable)
17 August 2017	Walnut 4S, US	daily rain	90.7 mm (3.6 in)	55.9 mm (2.2 in)	40 years	54 of 100 (Notable)
17 August 2017	Canby, US	daily rain	60.2 mm (2.4 in)	32.3 mm (1.3 in)	76 years	54 of 100 (Notable)
17 August 2017	Minneota, US	daily rain	80.0 mm (3.1 in)	72.1 mm (2.8 in)	24 years	54 of 100 (Notable)
17 August 2017	Licking 4N, US	daily rain	102.9 mm (4.1 in)	50.8 mm (2.0 in)	43 years	52 of 100 (Notable)
17 August 2017	Madison Wwtp, US	daily rain	58.4 mm (2.3 in)	28.9 mm (1.1 in)	76 years	51 of 100 (Notable)
17 August 2017	St Charles Elm Pt, US	daily rain	51.3 mm (2.0 in)	25.9 mm (1.0 in)	86 years	51 of 100 (Notable)
17 August 2017	Denton 2 SE, US	daily rain	55.9 mm (2.2 in)	21.1 mm (0.8 in)	91 years	51 of 100 (Notable)
17 August 2017	Hibbing Chisholm Hibbing AP, US	daily rain	60.2 mm (2.4 in)	38.9 mm (1.5 in)	46 years	51 of 100 (Notable)
17 August 2017	Pine Rvr Dam, US	daily rain	63.2 mm (2.5 in)	12.1 mm (0.5 in)	117 years	49 of 100 (Notable)
17 August 2017	Pecos Nm, US	daily low min	1.7 C (35.1 F)	3.9 C (7.0 F)	79 years	49 of 100 (Notable)
17 August 2017	Clear Lake, US	daily rain	44.7 mm (1.8 in)	22.6 mm (0.9 in)	76 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

1797 to 2017

Records set or tied on this calendar date in each year from 1797 to 2017. 2017 had 544 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 2017-08-17: 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 2026-10-15 (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 10	333
10 to 20	32
20 to 30	21
30 to 40	18
40 to 50	1
50 to 60	4
60 to 70	1
70 to 80	3