Weather Records on 9 October 2017

1,457 weather records were set or tied worldwide on 9 October 2017. Highest significance: Watertown AP, US.

Key Facts for 9 October 2017

On 9 October 2017, 1,457 weather records were set or tied at long-record stations worldwide.
858 were record highs and 163 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 245 monthly and 1,212 daily.
Watertown AP set a monthly record daily precipitation of 93.2 mm (3.7 in) on 9 October 2017.
Across 162 earlier years (1793 to 2026) the same calendar date averaged 462 records.

Record Map

1,457 stations

1,457 station records on 9 October 2017 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 October 2017: highest significance records shown on the map
Station	Country	Type	Value	Significance
Watertown AP	United States	Record daily precipitation	93.2 mm (3.7 in)	74 of 100 (Major)
Sidney 6NNW	United States	Record daily snowfall	15.2 cm (6.0 in)	72 of 100 (Major)
Bridgeport 5 NW	United States	Record daily precipitation	66.0 mm (2.6 in)	67 of 100 (Major)
Marion	United States	Record daily precipitation	132.8 mm (5.2 in)	66 of 100 (Major)
Kuusiku	Estonia	Record daily precipitation	35.3 mm (1.4 in)	64 of 100 (Major)
Troy	United States	Record daily precipitation	122.4 mm (4.8 in)	64 of 100 (Major)
Norwalk Wwtp	United States	Record daily precipitation	57.2 mm (2.3 in)	61 of 100 (Major)
Lockport 2SE	United States	Record daily precipitation	49.8 mm (2.0 in)	60 of 100 (Major)
Hillgrove (Hillview)	Australia	Record daily precipitation	35.4 mm (1.4 in)	59 of 100 (Notable)
Tianjin	China	Record daily precipitation	62.5 mm (2.5 in)	59 of 100 (Notable)
Shijiazhuang	China	Record daily precipitation	61.5 mm (2.4 in)	57 of 100 (Notable)
Caesars Head	United States	Record daily precipitation	132.1 mm (5.2 in)	57 of 100 (Notable)
Mtn City 2	United States	Record daily precipitation	50.8 mm (2.0 in)	57 of 100 (Notable)
Dayton 2SE	United States	Record daily precipitation	86.4 mm (3.4 in)	56 of 100 (Notable)
Yulin	China	Record daily precipitation	26.9 mm (1.1 in)	55 of 100 (Notable)
Oswego	United States	Record daily precipitation	77.0 mm (3.0 in)	55 of 100 (Notable)
Ebor (Glenowen)	Australia	Record daily precipitation	34.4 mm (1.4 in)	54 of 100 (Notable)
W Pt	United States	Record daily precipitation	158.2 mm (6.2 in)	54 of 100 (Notable)
Parsons 3 SE	United States	Record high minimum temperature	19.4 C (66.9 F)	54 of 100 (Notable)
Sapphire (Argyle)	Australia	Record daily precipitation	43.4 mm (1.7 in)	52 of 100 (Notable)
Chester	United States	Record snow depth	12.7 cm (5.0 in)	52 of 100 (Notable)
Lenoir	United States	Record daily precipitation	115.6 mm (4.6 in)	52 of 100 (Notable)
Knoxville AP	United States	Record high minimum temperature	22.2 C (72.0 F)	52 of 100 (Notable)
Boggabri (Penryn)	Australia	Record daily precipitation	41.4 mm (1.6 in)	51 of 100 (Notable)
Jiexiu	China	Record daily precipitation	57.2 mm (2.3 in)	51 of 100 (Notable)
Leroy 5 WSW	United States	Record daily snowfall	7.6 cm (3.0 in)	51 of 100 (Notable)
Perry	United States	Record high minimum temperature	25.6 C (78.1 F)	51 of 100 (Notable)
Princess Anne	United States	Record high minimum temperature	22.8 C (73.0 F)	51 of 100 (Notable)
Boonton 1 SE	United States	Record high minimum temperature	21.1 C (70.0 F)	51 of 100 (Notable)
Highlands	United States	Record daily precipitation	129.5 mm (5.1 in)	51 of 100 (Notable)
London State Fish Hatchery	United States	Record daily precipitation	48.5 mm (1.9 in)	51 of 100 (Notable)
Hamburg	United States	Record high minimum temperature	21.1 C (70.0 F)	51 of 100 (Notable)
Crossville Ed & Rsch STN	United States	Record high minimum temperature	20.0 C (68.0 F)	51 of 100 (Notable)
Tellico Plains	United States	Record high minimum temperature	21.7 C (71.1 F)	51 of 100 (Notable)
Wee Waa (Pendennis)	Australia	Record daily precipitation	27.0 mm (1.1 in)	50 of 100 (Notable)
Opelika	United States	Record daily precipitation	117.6 mm (4.6 in)	50 of 100 (Notable)
Gainesville	United States	Record high minimum temperature	20.6 C (69.1 F)	50 of 100 (Notable)
Brockton	United States	Record high minimum temperature	20.0 C (68.0 F)	50 of 100 (Notable)
Hogsett Rc Byrd Dam	United States	Record daily precipitation	39.1 mm (1.5 in)	50 of 100 (Notable)
Kukuiula 935	United States	Record daily precipitation	27.2 mm (1.1 in)	50 of 100 (Notable)
Datong	China	Record daily precipitation	29.7 mm (1.2 in)	49 of 100 (Notable)
Sidney 6NNW	United States	Record snow depth	15.2 cm (6.0 in)	49 of 100 (Notable)
Boone 1 SE	United States	Record daily precipitation	117.9 mm (4.6 in)	49 of 100 (Notable)
Marra Creek (Womboin)	Australia	Record daily precipitation	38.0 mm (1.5 in)	48 of 100 (Notable)
Guyra Post Office	Australia	Record daily precipitation	49.0 mm (1.9 in)	48 of 100 (Notable)
Storrs	United States	Record high minimum temperature	20.6 C (69.1 F)	48 of 100 (Notable)
Norton W	United States	Record high minimum temperature	20.0 C (68.0 F)	48 of 100 (Notable)
Oxford Hydro STN	United States	Record daily precipitation	81.5 mm (3.2 in)	48 of 100 (Notable)
Hillsboro	United States	Record daily precipitation	55.9 mm (2.2 in)	48 of 100 (Notable)
Selinsgrove 2 S	United States	Record high minimum temperature	21.1 C (70.0 F)	48 of 100 (Notable)
Bayard	United States	Record high minimum temperature	17.8 C (64.0 F)	48 of 100 (Notable)
Dubois	United States	Record daily snowfall	12.7 cm (5.0 in)	48 of 100 (Notable)
Uralla (Salisbury Court)	Australia	Record daily precipitation	34.2 mm (1.3 in)	47 of 100 (Notable)
Greenup Locks & Dam	United States	Record daily precipitation	55.6 mm (2.2 in)	47 of 100 (Notable)
Ellenburg Depot	United States	Record daily precipitation	35.1 mm (1.4 in)	47 of 100 (Notable)
Breeza (the Park)	Australia	Record daily precipitation	31.2 mm (1.2 in)	46 of 100 (Notable)
Tallinn	Estonia	Record daily precipitation	31.4 mm (1.2 in)	46 of 100 (Notable)
Hecla 1E	United States	Record daily snowfall	26.4 cm (10.4 in)	46 of 100 (Notable)
Winston Salem Reynolds AP	United States	Record high minimum temperature	23.3 C (73.9 F)	46 of 100 (Notable)
Barraba Post Office	Australia	Record daily precipitation	27.4 mm (1.1 in)	45 of 100 (Notable)

Counts by Type and Timescale

1,457 records

Records set or tied on 9 October 2017 by type: Highest daily maximum 139, Lowest daily maximum 73, Highest daily minimum 719, Lowest daily minimum 90, Heaviest daily rainfall 348, Heaviest daily snowfall 47, Deepest snow cover 41.

Records on 9 October 2017 by type
Record type	Records
Highest daily maximum	139
Lowest daily maximum	73
Highest daily minimum	719
Lowest daily minimum	90
Heaviest daily rainfall	348
Heaviest daily snowfall	47
Deepest snow cover	41

Records on 9 October 2017 by timescale: all-time 0, monthly 245, daily 1,212.

How Much Records Were Beaten By

1,152 broken records

Margins by which the 1,152 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 439.0. Ties are not counted.

Top 20 by Significance

9 October 2017

Top 20 records on 9 October 2017 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 October 2017	Watertown AP, US	monthly rain	93.2 mm (3.7 in)	35.0 mm (1.4 in)	61 years	74 of 100 (Major)
9 October 2017	Sidney 6NNW, US	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	107 years	72 of 100 (Major)
9 October 2017	Bridgeport 5 NW, US	daily rain	66.0 mm (2.6 in)	41.1 mm (1.6 in)	108 years	67 of 100 (Major)
9 October 2017	Marion, US	daily rain	132.8 mm (5.2 in)	57.9 mm (2.3 in)	95 years	66 of 100 (Major)
9 October 2017	Kuusiku, EE	daily rain	35.3 mm (1.4 in)	14.2 mm (0.6 in)	88 years	64 of 100 (Major)
9 October 2017	Troy, US	daily rain	122.4 mm (4.8 in)	72.1 mm (2.8 in)	50 years	64 of 100 (Major)
9 October 2017	Norwalk Wwtp, US	daily rain	57.2 mm (2.3 in)	28.2 mm (1.1 in)	67 years	61 of 100 (Major)
9 October 2017	Lockport 2SE, US	daily rain	49.8 mm (2.0 in)	25.7 mm (1.0 in)	67 years	60 of 100 (Major)
9 October 2017	Hillgrove (Hillview), AU	daily rain	35.4 mm (1.4 in)	17.4 mm (0.7 in)	100 years	59 of 100 (Notable)
9 October 2017	Tianjin, CN	daily rain	62.5 mm (2.5 in)	44.2 mm (1.7 in)	44 years	59 of 100 (Notable)
9 October 2017	Shijiazhuang, CN	daily rain	61.5 mm (2.4 in)	55.7 mm (2.2 in)	36 years	57 of 100 (Notable)
9 October 2017	Caesars Head, US	daily rain	132.1 mm (5.2 in)	93.7 mm (3.7 in)	40 years	57 of 100 (Notable)
9 October 2017	Mtn City 2, US	daily rain	50.8 mm (2.0 in)	36.3 mm (1.4 in)	56 years	57 of 100 (Notable)
9 October 2017	Dayton 2SE, US	daily rain	86.4 mm (3.4 in)	52.6 mm (2.1 in)	51 years	56 of 100 (Notable)
9 October 2017	Yulin, CN	daily rain	26.9 mm (1.1 in)	15.7 mm (0.6 in)	64 years	55 of 100 (Notable)
9 October 2017	Oswego, US	daily rain	77.0 mm (3.0 in)	31.8 mm (1.3 in)	40 years	55 of 100 (Notable)
9 October 2017	Ebor (Glenowen), AU	daily rain	34.4 mm (1.4 in)	14.1 mm (0.6 in)	100 years	54 of 100 (Notable)
9 October 2017	W Pt, US	monthly rain	158.2 mm (6.2 in)	42.6 mm (1.7 in)	28 years	54 of 100 (Notable)
9 October 2017	Parsons 3 SE, US	monthly high min	19.4 C (66.9 F)	2.2 C (4.0 F)	107 years	54 of 100 (Notable)
9 October 2017	Sapphire (Argyle), AU	daily rain	43.4 mm (1.7 in)	25.6 mm (1.0 in)	63 years	52 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 1,457 records.

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

Records on 10-09 in each year
Year	Records
1793	1
1795	1
1802	1
1834	1
1837	1
1846	2
1847	1
1854	2
1858	1
1861	1
1864	2
1865	3
1866	1
1867	2
1869	1
1870	2
1875	1
1876	2
1877	2
1879	2
1881	1
1882	1
1884	1
1885	1
1886	1
1887	2
1888	6
1889	1
1890	1
1891	1
1893	5
1895	7
1896	4
1897	1
1898	3
1899	5
1900	5
1901	2
1902	3
1903	15
1904	8
1905	14
1906	29
1907	6
1908	19
1909	34
1910	20
1911	16
1912	23
1913	57
1914	22
1915	25
1916	126
1917	65
1918	16
1919	68
1920	36
1921	217
1922	40
1923	72
1924	95
1925	272
1926	123
1927	107
1928	290
1929	196
1930	276
1931	298
1932	271
1933	187
1934	298
1935	208
1936	569
1937	405
1938	462
1939	877
1940	119
1941	570
1942	330
1943	442
1944	144
1945	539
1946	317
1947	277
1948	438
1949	1,531
1950	618
1951	347
1952	658
1953	343
1954	341
1955	643
1956	468
1957	256
1958	639
1959	1,432
1960	397
1961	622
1962	508
1963	474
1964	841
1965	349
1966	489
1967	347
1968	538
1969	389
1970	1,805
1971	423
1972	371
1973	1,454
1974	513
1975	552
1976	1,448
1977	586
1978	589
1979	914
1980	627
1981	653
1982	1,579
1983	548
1984	579
1985	1,724
1986	556
1987	850
1988	1,060
1989	679
1990	1,714
1991	707
1992	1,050
1993	1,043
1994	772
1995	1,139
1996	1,047
1997	2,113
1998	622
1999	1,017
2000	3,177
2001	855
2002	701
2003	1,386
2004	665
2005	807
2006	640
2007	1,450
2008	473
2009	1,772
2010	1,311
2011	1,046
2012	706
2013	562
2014	652
2015	780
2016	463
2017	1,457
2018	1,290
2019	964
2020	738
2021	751
2022	696
2023	643
2024	963
2025	503
2026	691

Download the Data

Data for records on 2017-10-09: 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 100	1,135
100 to 200	15
200 to 300	1
300 to 400	0
400 to 500	1