Weather Records on 31 October 1997

1,553 weather records were set or tied worldwide on 31 October 1997. Highest significance: Balaklava, AU.

Key Facts for 31 October 1997

On 31 October 1997, 1,553 weather records were set or tied at long-record stations worldwide.
579 were record highs and 230 were record lows, counting maximum and minimum temperature.
By timescale, 10 were all-time records, 215 monthly and 1,328 daily.
Balaklava set a monthly record daily precipitation of 67.8 mm (2.7 in) on 31 October 1997.
Across 163 earlier years (1805 to 2025) the same calendar date averaged 465 records.

Record Map

1,553 stations

1,553 station records on 31 October 1997 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 October 1997: highest significance records shown on the map
Station	Country	Type	Value	Significance
Balaklava	Australia	Record daily precipitation	67.8 mm (2.7 in)	90 of 100 (Exceptional)
Maitland	Australia	Record daily precipitation	69.4 mm (2.7 in)	90 of 100 (Exceptional)
Auburn	Australia	Record daily precipitation	94.0 mm (3.7 in)	87 of 100 (Exceptional)
Mundoora	Australia	Record daily precipitation	72.0 mm (2.8 in)	84 of 100 (Exceptional)
Stansbury	Australia	Record daily precipitation	58.0 mm (2.3 in)	81 of 100 (Exceptional)
Mallala	Australia	Record daily precipitation	83.0 mm (3.3 in)	81 of 100 (Exceptional)
Two Wells	Australia	Record daily precipitation	68.0 mm (2.7 in)	81 of 100 (Exceptional)
Gumeracha	Australia	Record daily precipitation	72.0 mm (2.8 in)	81 of 100 (Exceptional)
Terowie	Australia	Record daily precipitation	41.2 mm (1.6 in)	80 of 100 (Exceptional)
Sedan	Australia	Record daily precipitation	54.0 mm (2.1 in)	79 of 100 (Major)
Gulnare	Australia	Record daily precipitation	73.6 mm (2.9 in)	78 of 100 (Major)
Lochiel Saltworks	Australia	Record daily precipitation	76.0 mm (3.0 in)	78 of 100 (Major)
Yankalilla	Australia	Record daily precipitation	59.2 mm (2.3 in)	78 of 100 (Major)
Roopena	Australia	Record daily precipitation	38.0 mm (1.5 in)	77 of 100 (Major)
Ardrossan	Australia	Record daily precipitation	75.2 mm (3.0 in)	76 of 100 (Major)
Port Vincent	Australia	Record daily precipitation	76.0 mm (3.0 in)	76 of 100 (Major)
Melrose	Australia	Record daily precipitation	55.4 mm (2.2 in)	75 of 100 (Major)
Warooka	Australia	Record daily precipitation	57.0 mm (2.2 in)	75 of 100 (Major)
Yorketown	Australia	Record daily precipitation	42.6 mm (1.7 in)	75 of 100 (Major)
Owen	Australia	Record daily precipitation	90.0 mm (3.5 in)	75 of 100 (Major)
Strathalbyn	Australia	Record daily precipitation	57.0 mm (2.2 in)	75 of 100 (Major)
Mannum Council Depot	Australia	Record daily precipitation	63.0 mm (2.5 in)	75 of 100 (Major)
Peake	Australia	Record daily precipitation	31.0 mm (1.2 in)	74 of 100 (Major)
Blyth	Australia	Record daily precipitation	73.8 mm (2.9 in)	73 of 100 (Major)
Keyneton	Australia	Record daily precipitation	44.2 mm (1.7 in)	72 of 100 (Major)
Yacka	Australia	Record daily precipitation	65.4 mm (2.6 in)	71 of 100 (Major)
Port Clinton (Yararoo)	Australia	Record daily precipitation	75.0 mm (3.0 in)	71 of 100 (Major)
Victor Harbor (Rivington Grang	Australia	Record daily precipitation	54.0 mm (2.1 in)	71 of 100 (Major)
Narrung (Yalkuri)	Australia	Record daily precipitation	52.0 mm (2.0 in)	71 of 100 (Major)
Gawler Council Depot	Australia	Record daily precipitation	60.4 mm (2.4 in)	70 of 100 (Major)
Port Neill	Australia	Record daily precipitation	31.4 mm (1.2 in)	69 of 100 (Major)
Lower Light	Australia	Record daily precipitation	81.4 mm (3.2 in)	69 of 100 (Major)
North Adelaide	Australia	Record daily precipitation	72.0 mm (2.8 in)	69 of 100 (Major)
Waikerie	Australia	Record daily precipitation	63.4 mm (2.5 in)	69 of 100 (Major)
Meningie (Waltowa)	Australia	Record daily precipitation	65.6 mm (2.6 in)	69 of 100 (Major)
Port Germein (Baroota Reservoi	Australia	Record daily precipitation	64.0 mm (2.5 in)	68 of 100 (Major)
Arthurton (Lowandale)	Australia	Record daily precipitation	76.8 mm (3.0 in)	68 of 100 (Major)
Meningie	Australia	Record daily precipitation	50.8 mm (2.0 in)	68 of 100 (Major)
Ballan	Australia	Record daily precipitation	47.0 mm (1.9 in)	68 of 100 (Major)
Cleve (Mangalo)	Australia	Record daily precipitation	38.6 mm (1.5 in)	67 of 100 (Major)
Dawson (Anda-Vale)	Australia	Record daily precipitation	43.0 mm (1.7 in)	67 of 100 (Major)
Bute	Australia	Record daily precipitation	68.8 mm (2.7 in)	67 of 100 (Major)
Port Wakefield	Australia	Record daily precipitation	73.0 mm (2.9 in)	67 of 100 (Major)
Paskeville	Australia	Record daily precipitation	60.8 mm (2.4 in)	67 of 100 (Major)
Sandilands	Australia	Record daily precipitation	78.0 mm (3.1 in)	67 of 100 (Major)
Wallaroo	Australia	Record daily precipitation	59.0 mm (2.3 in)	67 of 100 (Major)
Kapunda	Australia	Record daily precipitation	69.0 mm (2.7 in)	67 of 100 (Major)
Riverton	Australia	Record daily precipitation	69.2 mm (2.7 in)	67 of 100 (Major)
Butler (Anona)	Australia	Record daily precipitation	32.0 mm (1.3 in)	66 of 100 (Major)
Woolgangi	Australia	Record daily precipitation	45.6 mm (1.8 in)	66 of 100 (Major)
Clare (Hill River)	Australia	Record daily precipitation	70.0 mm (2.8 in)	66 of 100 (Major)
Port Broughton	Australia	Record daily precipitation	69.6 mm (2.7 in)	66 of 100 (Major)
Moonta	Australia	Record daily precipitation	60.8 mm (2.4 in)	66 of 100 (Major)
Adelaide (Salisbury Bowling Cl	Australia	Record daily precipitation	74.4 mm (2.9 in)	66 of 100 (Major)
Callington	Australia	Record daily precipitation	75.0 mm (3.0 in)	66 of 100 (Major)
Langhorne Creek	Australia	Record daily precipitation	68.0 mm (2.7 in)	66 of 100 (Major)
Milang	Australia	Record daily precipitation	65.6 mm (2.6 in)	66 of 100 (Major)
Port Augusta West	Australia	Record daily precipitation	56.2 mm (2.2 in)	65 of 100 (Major)
Arno Bay	Australia	Record daily precipitation	27.8 mm (1.1 in)	65 of 100 (Major)
Bruce	Australia	Record daily precipitation	57.0 mm (2.2 in)	65 of 100 (Major)

Counts by Type and Timescale

1,553 records

Records set or tied on 31 October 1997 by type: Highest daily maximum 335, Lowest daily maximum 113, Highest daily minimum 244, Lowest daily minimum 117, Heaviest daily rainfall 704, Heaviest daily snowfall 2, Deepest snow cover 38.

Records on 31 October 1997 by type
Record type	Records
Highest daily maximum	335
Lowest daily maximum	113
Highest daily minimum	244
Lowest daily minimum	117
Heaviest daily rainfall	704
Heaviest daily snowfall	2
Deepest snow cover	38

Records on 31 October 1997 by timescale: all-time 10, monthly 215, daily 1,328.

How Much Records Were Beaten By

1,330 broken records

Margins by which the 1,330 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 330.0. Ties are not counted.

Top 20 by Significance

31 October 1997

Top 20 records on 31 October 1997 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 October 1997	Balaklava, AU	monthly rain	67.8 mm (2.7 in)	32.7 mm (1.3 in)	108 years	90 of 100 (Exceptional)
31 October 1997	Maitland, AU	monthly rain	69.4 mm (2.7 in)	24.7 mm (1.0 in)	103 years	90 of 100 (Exceptional)
31 October 1997	Auburn, AU	monthly rain	94.0 mm (3.7 in)	25.4 mm (1.0 in)	103 years	87 of 100 (Exceptional)
31 October 1997	Mundoora, AU	monthly rain	72.0 mm (2.8 in)	27.5 mm (1.1 in)	93 years	84 of 100 (Exceptional)
31 October 1997	Stansbury, AU	monthly rain	58.0 mm (2.3 in)	16.1 mm (0.6 in)	111 years	81 of 100 (Exceptional)
31 October 1997	Mallala, AU	monthly rain	83.0 mm (3.3 in)	41.9 mm (1.6 in)	73 years	81 of 100 (Exceptional)
31 October 1997	Two Wells, AU	monthly rain	68.0 mm (2.7 in)	31.9 mm (1.3 in)	73 years	81 of 100 (Exceptional)
31 October 1997	Gumeracha, AU	monthly rain	72.0 mm (2.8 in)	28.3 mm (1.1 in)	71 years	81 of 100 (Exceptional)
31 October 1997	Terowie, AU	daily rain	41.2 mm (1.6 in)	35.1 mm (1.4 in)	112 years	80 of 100 (Exceptional)
31 October 1997	Sedan, AU	daily rain	54.0 mm (2.1 in)	49.9 mm (2.0 in)	96 years	79 of 100 (Major)
31 October 1997	Gulnare, AU	monthly rain	73.6 mm (2.9 in)	21.0 mm (0.8 in)	93 years	78 of 100 (Major)
31 October 1997	Lochiel Saltworks, AU	monthly rain	76.0 mm (3.0 in)	44.5 mm (1.8 in)	67 years	78 of 100 (Major)
31 October 1997	Yankalilla, AU	monthly rain	59.2 mm (2.3 in)	19.1 mm (0.8 in)	89 years	78 of 100 (Major)
31 October 1997	Roopena, AU	daily rain	38.0 mm (1.5 in)	30.9 mm (1.2 in)	105 years	77 of 100 (Major)
31 October 1997	Ardrossan, AU	monthly rain	75.2 mm (3.0 in)	26.9 mm (1.1 in)	55 years	76 of 100 (Major)
31 October 1997	Port Vincent, AU	monthly rain	76.0 mm (3.0 in)	36.6 mm (1.4 in)	55 years	76 of 100 (Major)
31 October 1997	Melrose, AU	daily rain	55.4 mm (2.2 in)	42.7 mm (1.7 in)	86 years	75 of 100 (Major)
31 October 1997	Warooka, AU	daily rain	57.0 mm (2.2 in)	38.7 mm (1.5 in)	86 years	75 of 100 (Major)
31 October 1997	Yorketown, AU	daily rain	42.6 mm (1.7 in)	25.8 mm (1.0 in)	86 years	75 of 100 (Major)
31 October 1997	Owen, AU	monthly rain	90.0 mm (3.5 in)	57.2 mm (2.3 in)	62 years	75 of 100 (Major)

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 1997

Records set or tied on this calendar date in each year from 1805 to 1997. 1997 had 1,553 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 1997-10-31: 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	1,296
50 to 100	18
100 to 150	5
150 to 200	7
200 to 250	1
250 to 300	2
300 to 350	1