Weather Records on 17 August 1985

948 weather records were set or tied worldwide on 17 August 1985. Highest significance: Bridgeport 5 NW, US.

Key Facts for 17 August 1985

On 17 August 1985, 948 weather records were set or tied at long-record stations worldwide.
152 were record highs and 336 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 31 monthly and 912 daily.
Bridgeport 5 NW set a monthly record daily precipitation of 116.8 mm (4.6 in) on 17 August 1985.
Across 162 earlier years (1797 to 2026) the same calendar date averaged 471 records.

Record Map

948 stations

948 station records on 17 August 1985 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 August 1985: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bridgeport 5 NW	United States	Record daily precipitation	116.8 mm (4.6 in)	84 of 100 (Exceptional)
Kohala Mis 175.1	United States	Record daily precipitation	91.4 mm (3.6 in)	68 of 100 (Major)
Deal Island	Australia	Record daily precipitation	45.8 mm (1.8 in)	66 of 100 (Major)
Mayville	United States	Record daily precipitation	99.8 mm (3.9 in)	64 of 100 (Major)
Lewisburg Exp STN	United States	Record daily precipitation	86.6 mm (3.4 in)	64 of 100 (Major)
Ninety Nine Is	United States	Record daily precipitation	181.9 mm (7.2 in)	62 of 100 (Major)
Asheville	United States	Record daily precipitation	51.1 mm (2.0 in)	61 of 100 (Major)
Mt Holly 4 NE	United States	Record daily precipitation	91.9 mm (3.6 in)	60 of 100 (Major)
Winthrop UNIV	United States	Record daily precipitation	135.6 mm (5.3 in)	60 of 100 (Major)
Bottineau	United States	Record daily precipitation	65.3 mm (2.6 in)	58 of 100 (Notable)
Waynesboro	United States	Record daily precipitation	122.7 mm (4.8 in)	58 of 100 (Notable)
Flinders Island Airport	Australia	Record daily precipitation	65.2 mm (2.6 in)	56 of 100 (Notable)
Red Lake Falls	United States	Record daily precipitation	83.3 mm (3.3 in)	55 of 100 (Notable)
Alpharetta 4 SSW	United States	Record daily precipitation	64.5 mm (2.5 in)	54 of 100 (Notable)
Mc Minnville	United States	Record daily precipitation	65.8 mm (2.6 in)	54 of 100 (Notable)
Hendersonville 1 NE	United States	Record daily precipitation	90.9 mm (3.6 in)	53 of 100 (Notable)
Mason City	United States	Record daily precipitation	38.1 mm (1.5 in)	52 of 100 (Notable)
Westerland	Germany	Record daily precipitation	60.4 mm (2.4 in)	51 of 100 (Notable)
Barguzin	Russia	Record daily precipitation	41.4 mm (1.6 in)	51 of 100 (Notable)
Blowing Rock 1NW	United States	Record daily precipitation	63.5 mm (2.5 in)	51 of 100 (Notable)
Ft Mill 4 NW	United States	Record daily precipitation	110.0 mm (4.3 in)	51 of 100 (Notable)
Stephan 2 NW	United States	Record low minimum temperature	1.1 C (34.0 F)	51 of 100 (Notable)
Troickij Priisk	Russia	Record daily precipitation	57.2 mm (2.3 in)	50 of 100 (Notable)
Kjahta	Russia	Record daily precipitation	41.1 mm (1.6 in)	50 of 100 (Notable)
Pontotoc	United States	Record daily precipitation	75.7 mm (3.0 in)	50 of 100 (Notable)
Sherwood	United States	Record daily precipitation	64.3 mm (2.5 in)	50 of 100 (Notable)
Gaffney 6 E	United States	Record daily precipitation	144.3 mm (5.7 in)	50 of 100 (Notable)
Great Falls	United States	Record daily precipitation	94.5 mm (3.7 in)	50 of 100 (Notable)
Pickstown	United States	Record daily precipitation	70.4 mm (2.8 in)	50 of 100 (Notable)
Wakkanai	Japan	Record daily precipitation	69.5 mm (2.7 in)	49 of 100 (Notable)
Gorjacinsk	Russia	Record daily precipitation	54.3 mm (2.1 in)	49 of 100 (Notable)
Aberdeen	United States	Record daily precipitation	50.8 mm (2.0 in)	49 of 100 (Notable)
Ewing	United States	Record daily precipitation	47.0 mm (1.9 in)	49 of 100 (Notable)
Marion	United States	Record daily precipitation	79.2 mm (3.1 in)	49 of 100 (Notable)
Rumbulara Vineyards	Australia	Record daily precipitation	42.2 mm (1.7 in)	48 of 100 (Notable)
Culemborg	Netherlands	Record daily precipitation	41.3 mm (1.6 in)	48 of 100 (Notable)
Booneville	United States	Record daily precipitation	67.6 mm (2.7 in)	48 of 100 (Notable)
Ripley	United States	Record daily precipitation	58.9 mm (2.3 in)	48 of 100 (Notable)
State UNIV	United States	Record low maximum temperature	23.3 C (73.9 F)	48 of 100 (Notable)
Gastonia	United States	Record daily precipitation	146.6 mm (5.8 in)	48 of 100 (Notable)
Ambrose 3 N	United States	Record daily precipitation	55.9 mm (2.2 in)	48 of 100 (Notable)
Carawatha	Australia	Record daily precipitation	31.0 mm (1.2 in)	47 of 100 (Notable)
Tenterfield (Federation Park)	Australia	Record daily precipitation	25.4 mm (1.0 in)	47 of 100 (Notable)
Itapicuru	Brazil	Record daily precipitation	36.6 mm (1.4 in)	47 of 100 (Notable)
Bridgewater Hydro	United States	Record daily precipitation	87.1 mm (3.4 in)	47 of 100 (Notable)
Galax Radio Wbrf	United States	Record daily precipitation	50.8 mm (2.0 in)	47 of 100 (Notable)
Sand Mt Substn	United States	Record daily precipitation	71.1 mm (2.8 in)	46 of 100 (Notable)
Oxford Hydro STN	United States	Record daily precipitation	98.0 mm (3.9 in)	46 of 100 (Notable)
Shelby 2 NW	United States	Record daily precipitation	121.9 mm (4.8 in)	46 of 100 (Notable)
Gagnoa	Cote D'Ivoire	Record daily precipitation	88.9 mm (3.5 in)	45 of 100 (Notable)
Romanovka	Russia	Record daily precipitation	46.4 mm (1.8 in)	45 of 100 (Notable)
Canton	United States	Record daily precipitation	48.8 mm (1.9 in)	45 of 100 (Notable)
Upham 3 N	United States	Record daily precipitation	46.2 mm (1.8 in)	45 of 100 (Notable)
Vaiden 1 SSW	United States	Record daily precipitation	35.6 mm (1.4 in)	44 of 100 (Notable)
Foxholm 7 N	United States	Record daily precipitation	42.2 mm (1.7 in)	44 of 100 (Notable)
Columbia 3 WNW	United States	Record daily precipitation	101.3 mm (4.0 in)	44 of 100 (Notable)
Milan Exp STN	United States	Record daily precipitation	58.9 mm (2.3 in)	44 of 100 (Notable)
Monteagle	United States	Record daily precipitation	102.9 mm (4.1 in)	44 of 100 (Notable)
Pjarnu	Estonia	Record daily precipitation	38.5 mm (1.5 in)	43 of 100 (Notable)
Falkville 1 E	United States	Record daily precipitation	84.6 mm (3.3 in)	43 of 100 (Notable)

Counts by Type and Timescale

948 records

Records set or tied on 17 August 1985 by type: Highest daily maximum 53, Lowest daily maximum 182, Highest daily minimum 99, Lowest daily minimum 154, Heaviest daily rainfall 460.

Records on 17 August 1985 by type
Record type	Records
Highest daily maximum	53
Lowest daily maximum	182
Highest daily minimum	99
Lowest daily minimum	154
Heaviest daily rainfall	460
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 August 1985 by timescale: all-time 5, monthly 31, daily 912.

How Much Records Were Beaten By

780 broken records

Margins by which the 780 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 86.6. Ties are not counted.

Top 20 by Significance

17 August 1985

Top 20 records on 17 August 1985 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 August 1985	Bridgeport 5 NW, US	monthly rain	116.8 mm (4.6 in)	45.7 mm (1.8 in)	84 years	84 of 100 (Exceptional)
17 August 1985	Kohala Mis 175.1, US	daily rain	91.4 mm (3.6 in)	37.6 mm (1.5 in)	71 years	68 of 100 (Major)
17 August 1985	Deal Island, AU	daily rain	45.8 mm (1.8 in)	16.6 mm (0.7 in)	84 years	66 of 100 (Major)
17 August 1985	Mayville, US	daily rain	99.8 mm (3.9 in)	58.7 mm (2.3 in)	50 years	64 of 100 (Major)
17 August 1985	Lewisburg Exp STN, US	daily rain	86.6 mm (3.4 in)	61.5 mm (2.4 in)	50 years	64 of 100 (Major)
17 August 1985	Ninety Nine Is, US	all-time rain	181.9 mm (7.2 in)	54.9 mm (2.2 in)	18 years	62 of 100 (Major)
17 August 1985	Asheville, US	daily rain	51.1 mm (2.0 in)	30.3 mm (1.2 in)	89 years	61 of 100 (Major)
17 August 1985	Mt Holly 4 NE, US	daily rain	91.9 mm (3.6 in)	51.3 mm (2.0 in)	68 years	60 of 100 (Major)
17 August 1985	Winthrop UNIV, US	daily rain	135.6 mm (5.3 in)	86.6 mm (3.4 in)	40 years	60 of 100 (Major)
17 August 1985	Bottineau, US	daily rain	65.3 mm (2.6 in)	49.6 mm (2.0 in)	30 years	58 of 100 (Notable)
17 August 1985	Waynesboro, US	monthly rain	122.7 mm (4.8 in)	28.7 mm (1.1 in)	66 years	58 of 100 (Notable)
17 August 1985	Flinders Island Airport, AU	daily rain	65.2 mm (2.6 in)	56.3 mm (2.2 in)	40 years	56 of 100 (Notable)
17 August 1985	Red Lake Falls, US	daily rain	83.3 mm (3.3 in)	45.7 mm (1.8 in)	50 years	55 of 100 (Notable)
17 August 1985	Alpharetta 4 SSW, US	daily rain	64.5 mm (2.5 in)	51.5 mm (2.0 in)	20 years	54 of 100 (Notable)
17 August 1985	Mc Minnville, US	daily rain	65.8 mm (2.6 in)	30.2 mm (1.2 in)	74 years	54 of 100 (Notable)
17 August 1985	Hendersonville 1 NE, US	daily rain	90.9 mm (3.6 in)	37.8 mm (1.5 in)	82 years	53 of 100 (Notable)
17 August 1985	Mason City, US	daily rain	38.1 mm (1.5 in)	26.4 mm (1.0 in)	74 years	52 of 100 (Notable)
17 August 1985	Westerland, DE	daily rain	60.4 mm (2.4 in)	31.6 mm (1.2 in)	22 years	51 of 100 (Notable)
17 August 1985	Barguzin, RU	daily rain	41.4 mm (1.6 in)	25.4 mm (1.0 in)	36 years	51 of 100 (Notable)
17 August 1985	Blowing Rock 1NW, US	daily rain	63.5 mm (2.5 in)	25.9 mm (1.0 in)	89 years	51 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 1985

Records set or tied on this calendar date in each year from 1797 to 1985. 1985 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 1985-08-17: 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 20	665
20 to 40	80
40 to 60	29
60 to 80	5
80 to 100	1