Weather Records on 31 October 2017

437 weather records were set or tied worldwide on 31 October 2017. Highest significance: Bemidji, US.

Key Facts for 31 October 2017

On 31 October 2017, 437 weather records were set or tied at long-record stations worldwide.
179 were record highs and 121 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 16 monthly and 419 daily.
Bemidji set a daily record snowfall of 9.7 cm (3.8 in) on 31 October 2017.
Across 163 earlier years (1805 to 2025) the same calendar date averaged 472 records.

Record Map

437 stations

437 station records on 31 October 2017 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 October 2017: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bemidji	United States	Record daily snowfall	9.7 cm (3.8 in)	52 of 100 (Notable)
Porcupine	United States	Record daily precipitation	27.9 mm (1.1 in)	52 of 100 (Notable)
Lake Echo Power Station	Australia	Record daily precipitation	40.0 mm (1.6 in)	51 of 100 (Notable)
S Fork Shields	United States	Record daily precipitation	48.3 mm (1.9 in)	51 of 100 (Notable)
Bergland Dam	United States	Record daily snowfall	21.3 cm (8.4 in)	48 of 100 (Notable)
Almaty	Kazakhstan	Record high maximum temperature	27.4 C (81.3 F)	46 of 100 (Notable)
Brule Rs	United States	Record low maximum temperature	-2.2 C (28.0 F)	46 of 100 (Notable)
Cuddalore	India	Record daily precipitation	140.0 mm (5.5 in)	45 of 100 (Notable)
Tamdy	Uzbekistan	Record high minimum temperature	24.6 C (76.3 F)	42 of 100 (Notable)
Plant City	United States	Record low minimum temperature	6.1 C (43.0 F)	41 of 100 (Notable)
Robinson	United States	Record low maximum temperature	6.7 C (44.1 F)	41 of 100 (Notable)
Bergland Dam	United States	Record daily precipitation	26.9 mm (1.1 in)	41 of 100 (Notable)
Klin	Russia	Record daily precipitation	25.9 mm (1.0 in)	40 of 100 (Notable)
Petropavlovsk-Kamchatskij	Russia	Record daily precipitation	71.5 mm (2.8 in)	39 of 100 (Notable)
Nachiki	Russia	Record daily precipitation	37.5 mm (1.5 in)	38 of 100 (Notable)
Arcadia	United States	Record low maximum temperature	20.0 C (68.0 F)	38 of 100 (Notable)
Washta	United States	Record low maximum temperature	0.6 C (33.1 F)	38 of 100 (Notable)
Jimma	Ethiopia	Record daily precipitation	34.0 mm (1.3 in)	37 of 100 (Notable)
Riverdale	United States	Record low minimum temperature	-14.4 C (6.1 F)	37 of 100 (Notable)
Rainier Paradise Rs	United States	Record high maximum temperature	17.8 C (64.0 F)	37 of 100 (Notable)
Mullewa	Australia	Record high maximum temperature	38.0 C (100.4 F)	36 of 100 (Notable)
Mecca Fire STN	United States	Record high minimum temperature	19.4 C (66.9 F)	36 of 100 (Notable)
Prospect Reservoir	Australia	Record low minimum temperature	0.0 C (32.0 F)	35 of 100 (Notable)
Ft Lauderdale	United States	Record low minimum temperature	9.4 C (48.9 F)	35 of 100 (Notable)
Pulaski	United States	Record daily precipitation	54.9 mm (2.2 in)	34 of 100 (Routine)
Boulder Mountain	United States	Record daily precipitation	25.4 mm (1.0 in)	34 of 100 (Routine)
Bouake	Cote D'Ivoire	Record high minimum temperature	23.0 C (73.4 F)	33 of 100 (Routine)
Rodrigues	Mauritius	Record daily precipitation	26.9 mm (1.1 in)	33 of 100 (Routine)
Invercargill Airpor	New Zealand	Record high maximum temperature	25.1 C (77.2 F)	33 of 100 (Routine)
Marion Island	South Africa	Record high maximum temperature	19.5 C (67.1 F)	33 of 100 (Routine)
Hermit 8 SE	United States	Record high minimum temperature	0.6 C (33.1 F)	33 of 100 (Routine)
Pinkham Notch	United States	Record daily precipitation	74.9 mm (2.9 in)	33 of 100 (Routine)
Bergland Dam	United States	Record snow depth	33.0 cm (13.0 in)	32 of 100 (Routine)
Torrance AP	United States	Record high minimum temperature	17.2 C (63.0 F)	32 of 100 (Routine)
Belleville Siu Rsch	United States	Record low minimum temperature	-5.0 C (23.0 F)	32 of 100 (Routine)
Rangeley	United States	Record daily precipitation	39.4 mm (1.6 in)	31 of 100 (Routine)
Kodiak AP	United States	Record high maximum temperature	12.2 C (54.0 F)	31 of 100 (Routine)
Abingdon Downs Station	Australia	Record daily precipitation	40.0 mm (1.6 in)	30 of 100 (Routine)
Kathmandu Airport	Nepal	Record low maximum temperature	18.0 C (64.4 F)	30 of 100 (Routine)
Bartow 1SE	United States	Record low minimum temperature	6.1 C (43.0 F)	30 of 100 (Routine)
Gouverneur 3 NW	United States	Record daily precipitation	27.9 mm (1.1 in)	30 of 100 (Routine)
Watertown	United States	Record daily precipitation	26.7 mm (1.1 in)	30 of 100 (Routine)
Alberta Ford For Ctr	United States	Record daily snowfall	15.2 cm (6.0 in)	29 of 100 (Routine)
Circle Hot Springs	United States	Record high minimum temperature	-5.6 C (21.9 F)	29 of 100 (Routine)
Cimbaj	Uzbekistan	Record high minimum temperature	15.8 C (60.4 F)	29 of 100 (Routine)
Shasta Dam	United States	Record high maximum temperature	32.2 C (90.0 F)	28 of 100 (Routine)
Camilla 3SE	United States	Record low minimum temperature	0.6 C (33.1 F)	28 of 100 (Routine)
Ellensburg Bowers Fld	United States	Record high maximum temperature	21.7 C (71.1 F)	28 of 100 (Routine)
Broome Airport	Australia	Record high maximum temperature	41.2 C (106.2 F)	27 of 100 (Routine)
Taraz	Kazakhstan	Record high minimum temperature	15.2 C (59.4 F)	27 of 100 (Routine)
Venice	United States	Record low minimum temperature	7.8 C (46.0 F)	27 of 100 (Routine)
Lewistown 11 SSE	United States	Record daily precipitation	25.1 mm (1.0 in)	27 of 100 (Routine)
Lone Rock Tri Co AP	United States	Record low maximum temperature	2.2 C (36.0 F)	27 of 100 (Routine)
Gracemere Russell St	Australia	Record daily precipitation	52.0 mm (2.0 in)	26 of 100 (Routine)
Sarh	Chad	Record high minimum temperature	24.0 C (75.2 F)	26 of 100 (Routine)
M'Puoya	Congo (Brazzaville)	Record low minimum temperature	14.5 C (58.1 F)	26 of 100 (Routine)
Nuuk	Greenland [Denmark]	Record high minimum temperature	3.4 C (38.1 F)	26 of 100 (Routine)
Taraz	Kazakhstan	Record high maximum temperature	30.8 C (87.4 F)	26 of 100 (Routine)
Alberta Ford For Ctr	United States	Record snow depth	20.3 cm (8.0 in)	26 of 100 (Routine)
St Joseph Rosecrans Mem AP	United States	Record low maximum temperature	2.8 C (37.0 F)	26 of 100 (Routine)

Counts by Type and Timescale

437 records

Records set or tied on 31 October 2017 by type: Highest daily maximum 95, Lowest daily maximum 47, Highest daily minimum 84, Lowest daily minimum 74, Heaviest daily rainfall 98, Heaviest daily snowfall 21, Deepest snow cover 18.

Records on 31 October 2017 by type
Record type	Records
Highest daily maximum	95
Lowest daily maximum	47
Highest daily minimum	84
Lowest daily minimum	74
Heaviest daily rainfall	98
Heaviest daily snowfall	21
Deepest snow cover	18

Records on 31 October 2017 by timescale: all-time 2, monthly 16, daily 419.

How Much Records Were Beaten By

333 broken records

Margins by which the 333 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

31 October 2017

Top 20 records on 31 October 2017 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 October 2017	Bemidji, US	daily snowfall	9.7 cm (3.8 in)	7.2 cm (2.8 in)	84 years	52 of 100 (Notable)
31 October 2017	Porcupine, US	daily rain	27.9 mm (1.1 in)	20.3 mm (0.8 in)	28 years	52 of 100 (Notable)
31 October 2017	Lake Echo Power Station, AU	daily rain	40.0 mm (1.6 in)	25.0 mm (1.0 in)	28 years	51 of 100 (Notable)
31 October 2017	S Fork Shields, US	daily rain	48.3 mm (1.9 in)	35.6 mm (1.4 in)	28 years	51 of 100 (Notable)
31 October 2017	Bergland Dam, US	daily snowfall	21.3 cm (8.4 in)	9.1 cm (3.6 in)	66 years	48 of 100 (Notable)
31 October 2017	Almaty, KZ	daily high max	27.4 C (81.3 F)	5.1 C (9.2 F)	95 years	46 of 100 (Notable)
31 October 2017	Brule Rs, US	monthly low max	-2.2 C (28.0 F)	1.1 C (2.0 F)	87 years	46 of 100 (Notable)
31 October 2017	Cuddalore, IN	daily rain	140.0 mm (5.5 in)	20.9 mm (0.8 in)	96 years	45 of 100 (Notable)
31 October 2017	Tamdy, UZ	monthly high min	24.6 C (76.3 F)	1.4 C (2.5 F)	76 years	42 of 100 (Notable)
31 October 2017	Plant City, US	daily low min	6.1 C (43.0 F)	0.6 C (1.1 F)	108 years	41 of 100 (Notable)
31 October 2017	Robinson, US	daily low max	6.7 C (44.1 F)	1.1 C (2.0 F)	111 years	41 of 100 (Notable)
31 October 2017	Bergland Dam, US	daily rain	26.9 mm (1.1 in)	14.2 mm (0.6 in)	46 years	41 of 100 (Notable)
31 October 2017	Klin, RU	daily rain	25.9 mm (1.0 in)	8.6 mm (0.34 in)	55 years	40 of 100 (Notable)
31 October 2017	Petropavlovsk-Kamchatskij, RU	daily rain	71.5 mm (2.8 in)	19.6 mm (0.8 in)	62 years	39 of 100 (Notable)
31 October 2017	Nachiki, RU	daily rain	37.5 mm (1.5 in)	16.7 mm (0.7 in)	40 years	38 of 100 (Notable)
31 October 2017	Arcadia, US	daily low max	20.0 C (68.0 F)	0.6 C (1.1 F)	87 years	38 of 100 (Notable)
31 October 2017	Washta, US	daily low max	0.6 C (33.1 F)	2.7 C (4.9 F)	84 years	38 of 100 (Notable)
31 October 2017	Jimma, ET	daily rain	34.0 mm (1.3 in)	19.0 mm (0.7 in)	40 years	37 of 100 (Notable)
31 October 2017	Riverdale, US	monthly low min	-14.4 C (6.1 F)	1.6 C (2.9 F)	57 years	37 of 100 (Notable)
31 October 2017	Rainier Paradise Rs, US	daily high max	17.8 C (64.0 F)	0.6 C (1.1 F)	91 years	37 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

1805 to 2017

Records set or tied on this calendar date in each year from 1805 to 2017. 2017 had 437 records.

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

Records on 10-31 in each year
Year	Records
1805	1
1811	2
1828	1
1836	1
1838	1
1839	1
1841	1
1845	1
1847	2
1848	1
1852	2
1856	1
1865	1
1868	1
1869	3
1873	2
1875	2
1876	1
1877	1
1878	1
1879	1
1880	1
1881	6
1883	1
1884	3
1886	1
1887	2
1888	3
1889	5
1891	3
1892	4
1893	3
1894	5
1895	4
1896	10
1897	1
1898	5
1899	4
1900	5
1901	4
1902	5
1903	5
1904	7
1905	21
1906	38
1907	22
1908	13
1909	15
1910	18
1911	32
1912	14
1913	39
1914	33
1915	11
1916	72
1917	67
1918	72
1919	112
1920	63
1921	22
1922	72
1923	359
1924	244
1925	405
1926	153
1927	183
1928	120
1929	234
1930	240
1931	178
1932	260
1933	796
1934	410
1935	981
1936	307
1937	335
1938	399
1939	415
1940	248
1941	536
1942	578
1943	213
1944	611
1945	287
1946	530
1947	371
1948	695
1949	831
1950	1,237
1951	527
1952	393
1953	303
1954	460
1955	427
1956	1,086
1957	392
1958	314
1959	484
1960	296
1961	511
1962	344
1963	631
1964	538
1965	340
1966	630
1967	748
1968	605
1969	531
1970	412
1971	992
1972	1,234
1973	581
1974	1,192
1975	827
1976	655
1977	616
1978	538
1979	1,130
1980	657
1981	497
1982	560
1983	782
1984	1,054
1985	632
1986	396
1987	1,002
1988	1,058
1989	857
1990	990
1991	3,294
1992	1,324
1993	2,926
1994	1,004
1995	1,051
1996	1,074
1997	1,553
1998	1,410
1999	997
2000	1,114
2001	1,218
2002	1,613
2003	1,167
2004	870
2005	1,048
2006	842
2007	613
2008	1,256
2009	1,030
2010	931
2011	746
2012	884
2013	623
2014	547
2015	691
2016	1,012
2017	437
2018	414
2019	2,501
2020	542
2021	469
2022	497
2023	960
2024	1,133
2025	314

Download the Data

Data for records on 2017-10-31: 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	307
20 to 40	19
40 to 60	2
60 to 80	2
80 to 100	1
100 to 120	2