Weather Records on 31 October 1951

527 weather records were set or tied worldwide on 31 October 1951. Highest significance: Canguaretama, BR.

Key Facts for 31 October 1951

On 31 October 1951, 527 weather records were set or tied at long-record stations worldwide.
106 were record highs and 248 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 21 monthly and 506 daily.
Canguaretama set a monthly record daily precipitation of 83.5 mm (3.3 in) on 31 October 1951.
Across 163 earlier years (1805 to 2025) the same calendar date averaged 471 records.

Record Map

527 stations

527 station records on 31 October 1951 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 October 1951: highest significance records shown on the map
Station	Country	Type	Value	Significance
Canguaretama	Brazil	Record daily precipitation	83.5 mm (3.3 in)	63 of 100 (Major)
Kahuku 912	United States	Record daily precipitation	54.9 mm (2.2 in)	56 of 100 (Notable)
Mahukona 159	United States	Record daily precipitation	48.5 mm (1.9 in)	54 of 100 (Notable)
Macaiba	Brazil	Record daily precipitation	25.0 mm (1.0 in)	47 of 100 (Notable)
Kohala 179.1	United States	Record daily precipitation	68.6 mm (2.7 in)	46 of 100 (Notable)
Kohala Mis 175.1	United States	Record daily precipitation	62.7 mm (2.5 in)	46 of 100 (Notable)
Denkanikottah	India	Record daily precipitation	72.4 mm (2.9 in)	44 of 100 (Notable)
Launiupoko Intake 376	United States	Record daily precipitation	79.0 mm (3.1 in)	44 of 100 (Notable)
Kaanapali AP 453.1	United States	Record daily precipitation	105.4 mm (4.1 in)	42 of 100 (Notable)
Teresina	Brazil	Record daily precipitation	43.4 mm (1.7 in)	41 of 100 (Notable)
Grand Canyon HQ	United States	Record daily precipitation	46.2 mm (1.8 in)	40 of 100 (Notable)
Chapleau 2	Canada	Record daily snowfall	20.3 cm (8.0 in)	39 of 100 (Notable)
Lahaina 361	United States	Record daily precipitation	118.1 mm (4.6 in)	39 of 100 (Notable)
Niulii 179	United States	Record daily precipitation	91.2 mm (3.6 in)	39 of 100 (Notable)
Aiea Fld 764A	United States	Record daily precipitation	37.6 mm (1.5 in)	38 of 100 (Notable)
Hawi 168	United States	Record daily precipitation	40.6 mm (1.6 in)	38 of 100 (Notable)
Kangayam	India	Record daily precipitation	77.2 mm (3.0 in)	37 of 100 (Notable)
Kailua 446	United States	Record daily precipitation	84.6 mm (3.3 in)	37 of 100 (Notable)
Saltora	India	Record daily precipitation	43.2 mm (1.7 in)	36 of 100 (Notable)
Valapady	India	Record daily precipitation	52.1 mm (2.1 in)	34 of 100 (Routine)
Black Point 717	United States	Record daily precipitation	38.6 mm (1.5 in)	34 of 100 (Routine)
Haleakala Rch 432	United States	Record daily precipitation	56.4 mm (2.2 in)	34 of 100 (Routine)
Moanalua 770	United States	Record daily precipitation	36.3 mm (1.4 in)	34 of 100 (Routine)
Long Prairie	United States	Record low minimum temperature	-16.1 C (3.0 F)	32 of 100 (Routine)
Kahoma Intake 374	United States	Record daily precipitation	138.2 mm (5.4 in)	32 of 100 (Routine)
Gundlupet	India	Record daily precipitation	63.2 mm (2.5 in)	31 of 100 (Routine)
Bajramaly	Turkmenistan	Record low maximum temperature	6.3 C (43.3 F)	30 of 100 (Routine)
Park Rapids Muni AP	United States	Record low minimum temperature	-18.9 C (-2.0 F)	30 of 100 (Routine)
Pahala 21	United States	Record daily precipitation	67.8 mm (2.7 in)	29 of 100 (Routine)
Babb 6 NE	United States	Record low minimum temperature	-22.2 C (-8.0 F)	28 of 100 (Routine)
Ganca	Azerbaijan	Record low maximum temperature	6.7 C (44.1 F)	27 of 100 (Routine)
Buckeye	United States	Record daily precipitation	25.4 mm (1.0 in)	27 of 100 (Routine)
Hermit 8 SE	United States	Record daily snowfall	17.8 cm (7.0 in)	27 of 100 (Routine)
W Pt	United States	Record daily precipitation	45.2 mm (1.8 in)	27 of 100 (Routine)
Long Lake Dam	United States	Record daily snowfall	8.9 cm (3.5 in)	27 of 100 (Routine)
Kachugaon	India	Record daily precipitation	68.6 mm (2.7 in)	26 of 100 (Routine)
Guerrero (Smn)	Mexico	Record high minimum temperature	12.2 C (54.0 F)	26 of 100 (Routine)
Woodbury	United States	Record daily precipitation	37.1 mm (1.5 in)	26 of 100 (Routine)
Waiopai Rch 256	United States	Record daily precipitation	51.3 mm (2.0 in)	26 of 100 (Routine)
Kalgoorlie Post Office	Australia	Record high minimum temperature	23.1 C (73.6 F)	25 of 100 (Routine)
Pereiro	Brazil	Record daily precipitation	28.0 mm (1.1 in)	25 of 100 (Routine)
Atyrau	Kazakhstan	Record low maximum temperature	-1.3 C (29.7 F)	25 of 100 (Routine)
Hammond	United States	Record high maximum temperature	35.6 C (96.1 F)	25 of 100 (Routine)
Ironwood	United States	Record snow depth	20.3 cm (8.0 in)	25 of 100 (Routine)
Lake Yellowstone	United States	Record low minimum temperature	-18.9 C (-2.0 F)	25 of 100 (Routine)
Braunschweig (T.H.)	Germany	Record high minimum temperature	9.4 C (48.9 F)	24 of 100 (Routine)
Kislovodsk	Russia	Record low minimum temperature	-6.3 C (20.7 F)	24 of 100 (Routine)
Alkmaar	South Africa	Record daily precipitation	35.3 mm (1.4 in)	24 of 100 (Routine)
Zaaiplaats	South Africa	Record daily precipitation	35.8 mm (1.4 in)	24 of 100 (Routine)
Cheneyville 1 NE	United States	Record high maximum temperature	32.2 C (90.0 F)	24 of 100 (Routine)
Ishpeming	United States	Record daily snowfall	12.7 cm (5.0 in)	24 of 100 (Routine)
Phelps	United States	Record daily precipitation	25.4 mm (1.0 in)	24 of 100 (Routine)
Winter	United States	Record daily snowfall	10.2 cm (4.0 in)	24 of 100 (Routine)
Holly	United States	Record low maximum temperature	0.0 C (32.0 F)	23 of 100 (Routine)
Long Prairie	United States	Record low maximum temperature	-1.7 C (28.9 F)	23 of 100 (Routine)
Willmar Wwtp	United States	Record low maximum temperature	-2.2 C (28.0 F)	23 of 100 (Routine)
Imperial	United States	Record low maximum temperature	-1.1 C (30.0 F)	23 of 100 (Routine)
Kawainui Lower 193	United States	Record daily precipitation	81.8 mm (3.2 in)	23 of 100 (Routine)
Polur	India	Record daily precipitation	54.9 mm (2.2 in)	22 of 100 (Routine)
Milaca	United States	Record low minimum temperature	-12.2 C (10.0 F)	22 of 100 (Routine)

Counts by Type and Timescale

527 records

Records set or tied on 31 October 1951 by type: Highest daily maximum 34, Lowest daily maximum 169, Highest daily minimum 72, Lowest daily minimum 79, Heaviest daily rainfall 138, Heaviest daily snowfall 30, Deepest snow cover 5.

Records on 31 October 1951 by type
Record type	Records
Highest daily maximum	34
Lowest daily maximum	169
Highest daily minimum	72
Lowest daily minimum	79
Heaviest daily rainfall	138
Heaviest daily snowfall	30
Deepest snow cover	5

Records on 31 October 1951 by timescale: all-time 0, monthly 21, daily 506.

How Much Records Were Beaten By

405 broken records

Margins by which the 405 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 165.0. Ties are not counted.

Top 20 by Significance

31 October 1951

Top 20 records on 31 October 1951 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 October 1951	Canguaretama, BR	monthly rain	83.5 mm (3.3 in)	36.9 mm (1.5 in)	31 years	63 of 100 (Major)
31 October 1951	Kahuku 912, US	daily rain	54.9 mm (2.2 in)	46.8 mm (1.8 in)	41 years	56 of 100 (Notable)
31 October 1951	Mahukona 159, US	daily rain	48.5 mm (1.9 in)	44.4 mm (1.7 in)	33 years	54 of 100 (Notable)
31 October 1951	Macaiba, BR	daily rain	25.0 mm (1.0 in)	18.3 mm (0.7 in)	12 years	47 of 100 (Notable)
31 October 1951	Kohala 179.1, US	daily rain	68.6 mm (2.7 in)	47.8 mm (1.9 in)	6 years	46 of 100 (Notable)
31 October 1951	Kohala Mis 175.1, US	daily rain	62.7 mm (2.5 in)	38.8 mm (1.5 in)	6 years	46 of 100 (Notable)
31 October 1951	Denkanikottah, IN	daily rain	72.4 mm (2.9 in)	54.6 mm (2.1 in)	28 years	44 of 100 (Notable)
31 October 1951	Launiupoko Intake 376, US	daily rain	79.0 mm (3.1 in)	68.8 mm (2.7 in)	24 years	44 of 100 (Notable)
31 October 1951	Kaanapali AP 453.1, US	monthly rain	105.4 mm (4.1 in)	26.7 mm (1.1 in)	10 years	42 of 100 (Notable)
31 October 1951	Teresina, BR	daily rain	43.4 mm (1.7 in)	42.4 mm (1.7 in)	1 year	41 of 100 (Notable)
31 October 1951	Grand Canyon HQ, US	daily rain	46.2 mm (1.8 in)	25.9 mm (1.0 in)	24 years	40 of 100 (Notable)
31 October 1951	Chapleau 2, CA	daily snowfall	20.3 cm (8.0 in)	16.5 cm (6.5 in)	12 years	39 of 100 (Notable)
31 October 1951	Lahaina 361, US	monthly rain	118.1 mm (4.6 in)	35.8 mm (1.4 in)	12 years	39 of 100 (Notable)
31 October 1951	Niulii 179, US	monthly rain	91.2 mm (3.6 in)	19.3 mm (0.8 in)	10 years	39 of 100 (Notable)
31 October 1951	Aiea Fld 764A, US	daily rain	37.6 mm (1.5 in)	28.7 mm (1.1 in)	32 years	38 of 100 (Notable)
31 October 1951	Hawi 168, US	daily rain	40.6 mm (1.6 in)	23.3 mm (0.9 in)	28 years	38 of 100 (Notable)
31 October 1951	Kangayam, IN	daily rain	77.2 mm (3.0 in)	36.6 mm (1.4 in)	40 years	37 of 100 (Notable)
31 October 1951	Kailua 446, US	daily rain	84.6 mm (3.3 in)	50.8 mm (2.0 in)	5 years	37 of 100 (Notable)
31 October 1951	Saltora, IN	daily rain	43.2 mm (1.7 in)	43.2 mm (1.7 in)	32 years	36 of 100 (Notable)
31 October 1951	Valapady, IN	daily rain	52.1 mm (2.1 in)	28.0 mm (1.1 in)	37 years	34 of 100 (Routine)

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 1951

Records set or tied on this calendar date in each year from 1805 to 1951. 1951 had 527 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 1951-10-31: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 25	363
25 to 50	31
50 to 75	7
75 to 100	0
100 to 125	3
125 to 150	0
150 to 175	1