Weather Records on 31 October 1971

992 weather records were set or tied worldwide on 31 October 1971. Highest significance: Ft Ripley, US.

Key Facts for 31 October 1971

On 31 October 1971, 992 weather records were set or tied at long-record stations worldwide.
298 were record highs and 350 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 96 monthly and 896 daily.
Ft Ripley set a daily record precipitation of 58.7 mm (2.3 in) on 31 October 1971.
Across 163 earlier years (1805 to 2025) the same calendar date averaged 468 records.

Record Map

992 stations

992 station records on 31 October 1971 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 October 1971: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ft Ripley	United States	Record daily precipitation	58.7 mm (2.3 in)	67 of 100 (Major)
South Slocan	Canada	Record daily snowfall	26.9 cm (10.6 in)	61 of 100 (Major)
Eagle Bay	Canada	Record daily snowfall	21.6 cm (8.5 in)	58 of 100 (Notable)
Arthur 4NW	United States	Record daily snowfall	30.5 cm (12.0 in)	57 of 100 (Notable)
Long Prairie	United States	Record daily precipitation	45.5 mm (1.8 in)	54 of 100 (Notable)
Washburn	United States	Record daily precipitation	38.1 mm (1.5 in)	54 of 100 (Notable)
Fran?A	Brazil	Record daily precipitation	80.4 mm (3.2 in)	51 of 100 (Notable)
Vernon Coldstream Ranch	Canada	Record daily snowfall	16.5 cm (6.5 in)	50 of 100 (Notable)
Maandagshoek	South Africa	Record daily precipitation	46.0 mm (1.8 in)	47 of 100 (Notable)
Cacule	Brazil	Record daily precipitation	54.8 mm (2.2 in)	46 of 100 (Notable)
Creston	Canada	Record daily snowfall	16.5 cm (6.5 in)	46 of 100 (Notable)
Red Lake Indian Agcy	United States	Record daily snowfall	7.6 cm (3.0 in)	45 of 100 (Notable)
Cedarville	United States	Record daily snowfall	8.9 cm (3.5 in)	44 of 100 (Notable)
Coeur D'Alene	United States	Record daily snowfall	7.6 cm (3.0 in)	44 of 100 (Notable)
Fillmore	United States	Record snow depth	27.9 cm (11.0 in)	44 of 100 (Notable)
Kanosh	United States	Record snow depth	33.0 cm (13.0 in)	43 of 100 (Notable)
Morro Do Chapeu	Brazil	Record daily precipitation	95.9 mm (3.8 in)	42 of 100 (Notable)
Gyshgy	Turkmenistan	Record high maximum temperature	43.8 C (110.8 F)	42 of 100 (Notable)
Bear River Refuge	United States	Record daily snowfall	12.7 cm (5.0 in)	42 of 100 (Notable)
Logan Utah St UNIV	United States	Record daily snowfall	7.6 cm (3.0 in)	42 of 100 (Notable)
Garibaldi	Canada	Record daily snowfall	17.8 cm (7.0 in)	41 of 100 (Notable)
Toronto	Canada	Record high minimum temperature	11.7 C (53.1 F)	41 of 100 (Notable)
Sandrivierspoort	South Africa	Record daily precipitation	26.0 mm (1.0 in)	41 of 100 (Notable)
McCloud	United States	Record daily snowfall	5.1 cm (2.0 in)	41 of 100 (Notable)
Tooele	United States	Record daily snowfall	20.3 cm (8.0 in)	41 of 100 (Notable)
New Denver	Canada	Record daily snowfall	15.2 cm (6.0 in)	40 of 100 (Notable)
Armstrong	Canada	Record daily snowfall	14.7 cm (5.8 in)	40 of 100 (Notable)
Mabel Lake	Canada	Record daily snowfall	11.4 cm (4.5 in)	40 of 100 (Notable)
Grangeville	United States	Record daily snowfall	5.1 cm (2.0 in)	40 of 100 (Notable)
Richfield	United States	Record daily snowfall	8.1 cm (3.2 in)	40 of 100 (Notable)
Sugar City	United States	Record daily snowfall	10.2 cm (4.0 in)	40 of 100 (Notable)
Austin #2	United States	Record snow depth	10.2 cm (4.0 in)	40 of 100 (Notable)
Austin 3 S	United States	Record daily snowfall	10.2 cm (4.0 in)	40 of 100 (Notable)
Kingstree	United States	Record daily precipitation	67.3 mm (2.6 in)	40 of 100 (Notable)
Corinne	United States	Record daily snowfall	12.7 cm (5.0 in)	40 of 100 (Notable)
Heber	United States	Record snow depth	10.2 cm (4.0 in)	40 of 100 (Notable)
Park Rapids Muni AP	United States	Record daily precipitation	37.1 mm (1.5 in)	40 of 100 (Notable)
Westwold	Canada	Record daily snowfall	10.2 cm (4.0 in)	39 of 100 (Notable)
Oak City	United States	Record snow depth	27.9 cm (11.0 in)	39 of 100 (Notable)
Fantan	Armenia	Record daily precipitation	33.8 mm (1.3 in)	38 of 100 (Notable)
Bjelasnica	Bosnia and Herzegovina	Record low maximum temperature	-7.0 C (19.4 F)	38 of 100 (Notable)
Red Lake Indian Agcy	United States	Record daily precipitation	31.0 mm (1.2 in)	38 of 100 (Notable)
Eureka	United States	Record low maximum temperature	0.0 C (32.0 F)	38 of 100 (Notable)
Milford	United States	Record snow depth	22.9 cm (9.0 in)	38 of 100 (Notable)
Santo Inacio	Brazil	Record daily precipitation	80.2 mm (3.2 in)	37 of 100 (Notable)
Barreiras	Brazil	Record daily precipitation	62.7 mm (2.5 in)	37 of 100 (Notable)
South Slocan	Canada	Record daily precipitation	26.9 mm (1.1 in)	37 of 100 (Notable)
Malakwa Eagle R Hatchery	Canada	Record daily snowfall	30.0 cm (11.8 in)	37 of 100 (Notable)
Mc Henry 3W	United States	Record daily snowfall	10.9 cm (4.3 in)	37 of 100 (Notable)
Barkerville	Canada	Record daily snowfall	21.6 cm (8.5 in)	36 of 100 (Notable)
Warfield	Canada	Record daily snowfall	10.2 cm (4.0 in)	36 of 100 (Notable)
Salmon Arm	Canada	Record daily snowfall	19.3 cm (7.6 in)	35 of 100 (Notable)
Sorrento	Canada	Record daily snowfall	8.6 cm (3.4 in)	35 of 100 (Notable)
Larimore 4SW	United States	Record daily precipitation	38.1 mm (1.5 in)	35 of 100 (Notable)
Willow City	United States	Record daily snowfall	10.7 cm (4.2 in)	35 of 100 (Notable)
Alton	United States	Record low minimum temperature	-12.2 C (10.0 F)	35 of 100 (Notable)
Duchesne	United States	Record snow depth	10.2 cm (4.0 in)	35 of 100 (Notable)
Eureka	United States	Record daily snowfall	14.0 cm (5.5 in)	35 of 100 (Notable)
Santaquin Chlorinator	United States	Record daily snowfall	10.2 cm (4.0 in)	35 of 100 (Notable)
Crandall Creek	United States	Record low minimum temperature	-28.9 C (-20.0 F)	35 of 100 (Notable)

Counts by Type and Timescale

992 records

Records set or tied on 31 October 1971 by type: Highest daily maximum 117, Lowest daily maximum 182, Highest daily minimum 181, Lowest daily minimum 168, Heaviest daily rainfall 163, Heaviest daily snowfall 129, Deepest snow cover 52.

Records on 31 October 1971 by type
Record type	Records
Highest daily maximum	117
Lowest daily maximum	182
Highest daily minimum	181
Lowest daily minimum	168
Heaviest daily rainfall	163
Heaviest daily snowfall	129
Deepest snow cover	52

Records on 31 October 1971 by timescale: all-time 0, monthly 96, daily 896.

How Much Records Were Beaten By

812 broken records

Margins by which the 812 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 279.0. Ties are not counted.

Top 20 by Significance

31 October 1971

Top 20 records on 31 October 1971 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 October 1971	Ft Ripley, US	daily rain	58.7 mm (2.3 in)	48.5 mm (1.9 in)	64 years	67 of 100 (Major)
31 October 1971	South Slocan, CA	monthly snowfall	26.9 cm (10.6 in)	20.5 cm (8.1 in)	28 years	61 of 100 (Major)
31 October 1971	Eagle Bay, CA	monthly snowfall	21.6 cm (8.5 in)	16.5 cm (6.5 in)	38 years	58 of 100 (Notable)
31 October 1971	Arthur 4NW, US	monthly snowfall	30.5 cm (12.0 in)	10.2 cm (4.0 in)	59 years	57 of 100 (Notable)
31 October 1971	Long Prairie, US	daily rain	45.5 mm (1.8 in)	36.6 mm (1.4 in)	30 years	54 of 100 (Notable)
31 October 1971	Washburn, US	daily rain	38.1 mm (1.5 in)	27.9 mm (1.1 in)	24 years	54 of 100 (Notable)
31 October 1971	Fran?A, BR	monthly rain	80.4 mm (3.2 in)	24.7 mm (1.0 in)	35 years	51 of 100 (Notable)
31 October 1971	Vernon Coldstream Ranch, CA	daily snowfall	16.5 cm (6.5 in)	14.0 cm (5.5 in)	52 years	50 of 100 (Notable)
31 October 1971	Maandagshoek, ZA	daily rain	46.0 mm (1.8 in)	35.1 mm (1.4 in)	36 years	47 of 100 (Notable)
31 October 1971	Cacule, BR	daily rain	54.8 mm (2.2 in)	50.2 mm (2.0 in)	12 years	46 of 100 (Notable)
31 October 1971	Creston, CA	monthly snowfall	16.5 cm (6.5 in)	7.6 cm (3.0 in)	52 years	46 of 100 (Notable)
31 October 1971	Red Lake Indian Agcy, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	76 years	45 of 100 (Notable)
31 October 1971	Cedarville, US	monthly snowfall	8.9 cm (3.5 in)	1.3 cm (0.5 in)	72 years	44 of 100 (Notable)
31 October 1971	Coeur D'Alene, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	75 years	44 of 100 (Notable)
31 October 1971	Fillmore, US	daily snow depth	27.9 cm (11.0 in)	27.9 cm (11.0 in)	42 years	44 of 100 (Notable)
31 October 1971	Kanosh, US	daily snow depth	33.0 cm (13.0 in)	27.9 cm (11.0 in)	37 years	43 of 100 (Notable)
31 October 1971	Morro Do Chapeu, BR	monthly rain	95.9 mm (3.8 in)	26.0 mm (1.0 in)	3 years	42 of 100 (Notable)
31 October 1971	Gyshgy, TM	monthly high max	43.8 C (110.8 F)	6.6 C (11.9 F)	50 years	42 of 100 (Notable)
31 October 1971	Bear River Refuge, US	monthly snowfall	12.7 cm (5.0 in)	10.2 cm (4.0 in)	30 years	42 of 100 (Notable)
31 October 1971	Logan Utah St UNIV, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	68 years	42 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 1971

Records set or tied on this calendar date in each year from 1805 to 1971. 1971 had 992 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 1971-10-31: 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 50	744
50 to 100	48
100 to 150	13
150 to 200	2
200 to 250	3
250 to 300	2