Weather Records on 31 October 1938

399 weather records were set or tied worldwide on 31 October 1938. Highest significance: Hamilton, AU.

Key Facts for 31 October 1938

On 31 October 1938, 399 weather records were set or tied at long-record stations worldwide.
242 were record highs and 16 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 5 monthly and 394 daily.
Hamilton set a daily record precipitation of 39.4 mm (1.6 in) on 31 October 1938.
Across 163 earlier years (1805 to 2025) the same calendar date averaged 472 records.

Record Map

399 stations

399 station records on 31 October 1938 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 October 1938: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hamilton	Australia	Record daily precipitation	39.4 mm (1.6 in)	52 of 100 (Notable)
Glenlyon	Australia	Record daily precipitation	31.8 mm (1.3 in)	43 of 100 (Notable)
Vallam	India	Record daily precipitation	127.0 mm (5.0 in)	43 of 100 (Notable)
Cooktown Post Office	Australia	Record daily precipitation	29.2 mm (1.1 in)	41 of 100 (Notable)
Nyngan Airport	Australia	Record daily precipitation	40.6 mm (1.6 in)	40 of 100 (Notable)
Penshurst (Post Office)	Australia	Record daily precipitation	34.8 mm (1.4 in)	38 of 100 (Notable)
Nidamangalam	India	Record daily precipitation	93.5 mm (3.7 in)	38 of 100 (Notable)
Tennant Creek Post Office	Australia	Record daily precipitation	36.1 mm (1.4 in)	36 of 100 (Notable)
Grassy Hill Radio Otc	Australia	Record daily precipitation	55.9 mm (2.2 in)	36 of 100 (Notable)
Skipton Post Office	Australia	Record daily precipitation	25.7 mm (1.0 in)	31 of 100 (Routine)
Nemours (Ghazaouet)	Algeria	Record low minimum temperature	4.0 C (39.2 F)	28 of 100 (Routine)
Kumbhakonam	India	Record daily precipitation	81.5 mm (3.2 in)	28 of 100 (Routine)
Thiruthuraipoond	India	Record daily precipitation	102.1 mm (4.0 in)	28 of 100 (Routine)
Butterworth (Tnk)	South Africa	Record daily precipitation	43.9 mm (1.7 in)	28 of 100 (Routine)
Rokewood (Kuruc A Ruc)	Australia	Record daily precipitation	25.4 mm (1.0 in)	27 of 100 (Routine)
Dunvegan	Canada	Record high minimum temperature	1.7 C (35.1 F)	27 of 100 (Routine)
Tiruvarur	India	Record daily precipitation	132.1 mm (5.2 in)	27 of 100 (Routine)
Victoria River Downs	Australia	Record daily precipitation	25.4 mm (1.0 in)	26 of 100 (Routine)
Cranbrook (Cranbrook House)	Australia	Record daily precipitation	32.5 mm (1.3 in)	26 of 100 (Routine)
Minicoy Obsy	India	Record daily precipitation	70.9 mm (2.8 in)	26 of 100 (Routine)
Green Rvr	United States	Record high minimum temperature	3.3 C (37.9 F)	26 of 100 (Routine)
Alexandria	Australia	Record daily precipitation	27.4 mm (1.1 in)	25 of 100 (Routine)
Detroit Lakes 1 NNE	United States	Record high minimum temperature	10.0 C (50.0 F)	25 of 100 (Routine)
Highmore	United States	Record high minimum temperature	11.1 C (52.0 F)	25 of 100 (Routine)
Algiers-Ville/Universite	Algeria	Record daily precipitation	34.8 mm (1.4 in)	24 of 100 (Routine)
Ada	United States	Record high minimum temperature	7.2 C (45.0 F)	24 of 100 (Routine)
Hermannsburg	Australia	Record daily precipitation	30.5 mm (1.2 in)	23 of 100 (Routine)
Kattumannarkoil	India	Record daily precipitation	185.4 mm (7.3 in)	23 of 100 (Routine)
Leroy 5 WSW	United States	Record high minimum temperature	7.2 C (45.0 F)	22 of 100 (Routine)
Fergus Falls	United States	Record high minimum temperature	11.1 C (52.0 F)	22 of 100 (Routine)
Toorourrong Reservoir (Toorour	Australia	Record daily precipitation	33.5 mm (1.3 in)	21 of 100 (Routine)
Mayuram	India	Record daily precipitation	103.1 mm (4.1 in)	21 of 100 (Routine)
Montello 2NE	United States	Record daily precipitation	25.4 mm (1.0 in)	21 of 100 (Routine)
Cloud Chief 2 SE	United States	Record high maximum temperature	30.6 C (87.1 F)	21 of 100 (Routine)
Concordia ASOS	United States	Record high maximum temperature	27.8 C (82.0 F)	21 of 100 (Routine)
Grace	United States	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Yass (Linton Hostel)	Australia	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Colinroobie	Australia	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Naracoorte	Australia	Record daily precipitation	13.7 mm (0.5 in)	20 of 100 (Routine)
Burrundie Railway Station	Australia	Record daily precipitation	20.1 mm (0.8 in)	20 of 100 (Routine)
Lenah Valley (Augusta Road)	Australia	Record daily precipitation	18.0 mm (0.7 in)	20 of 100 (Routine)
Barguzin	Russia	Record daily precipitation	9.1 mm (0.36 in)	20 of 100 (Routine)
Magill Post Office	Australia	Record daily precipitation	7.9 mm (0.31 in)	20 of 100 (Routine)
Gnalta	Australia	Record daily precipitation	0.5 mm (0.02 in)	20 of 100 (Routine)
Blackfoot Fire Dept	United States	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
Urandangi	Australia	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Kirensk	Russia	Record daily precipitation	7.4 mm (0.29 in)	20 of 100 (Routine)
Livingston	United States	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Wentworth (Wamberra Station)	Australia	Record daily precipitation	2.0 mm (0.08 in)	20 of 100 (Routine)
Ellerston (Hunters Vale)	Australia	Record daily precipitation	37.6 mm (1.5 in)	20 of 100 (Routine)
Jayamkondam	India	Record daily precipitation	166.9 mm (6.6 in)	20 of 100 (Routine)
Westcliffe	United States	Record high minimum temperature	5.0 C (41.0 F)	20 of 100 (Routine)
Brainerd	United States	Record high minimum temperature	8.3 C (46.9 F)	20 of 100 (Routine)
Wattle Flat General Store	Australia	Record daily precipitation	19.1 mm (0.8 in)	19 of 100 (Routine)
Cressy Post Office	Australia	Record daily precipitation	15.5 mm (0.6 in)	19 of 100 (Routine)
Swansea Post Office	Australia	Record daily precipitation	29.7 mm (1.2 in)	19 of 100 (Routine)
Mount Wellington (the Springs)	Australia	Record daily precipitation	66.0 mm (2.6 in)	19 of 100 (Routine)
Fort Macleod	Canada	Record high maximum temperature	20.0 C (68.0 F)	19 of 100 (Routine)
Kenora	Canada	Record high minimum temperature	8.3 C (46.9 F)	19 of 100 (Routine)
Astrakan	Russia	Record high maximum temperature	20.2 C (68.4 F)	19 of 100 (Routine)

Counts by Type and Timescale

399 records

Records set or tied on 31 October 1938 by type: Highest daily maximum 110, Lowest daily maximum 8, Highest daily minimum 132, Lowest daily minimum 8, Heaviest daily rainfall 137, Heaviest daily snowfall 4.

Records on 31 October 1938 by type
Record type	Records
Highest daily maximum	110
Lowest daily maximum	8
Highest daily minimum	132
Lowest daily minimum	8
Heaviest daily rainfall	137
Heaviest daily snowfall	4
Deepest snow cover	0

Records on 31 October 1938 by timescale: all-time 0, monthly 5, daily 394.

How Much Records Were Beaten By

324 broken records

Margins by which the 324 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 99.1. Ties are not counted.

Top 20 by Significance

31 October 1938

Top 20 records on 31 October 1938 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 October 1938	Hamilton, AU	daily rain	39.4 mm (1.6 in)	23.4 mm (0.9 in)	32 years	52 of 100 (Notable)
31 October 1938	Glenlyon, AU	daily rain	31.8 mm (1.3 in)	22.1 mm (0.9 in)	32 years	43 of 100 (Notable)
31 October 1938	Vallam, IN	daily rain	127.0 mm (5.0 in)	99.1 mm (3.9 in)	0 years	43 of 100 (Notable)
31 October 1938	Cooktown Post Office, AU	daily rain	29.2 mm (1.1 in)	21.6 mm (0.9 in)	45 years	41 of 100 (Notable)
31 October 1938	Nyngan Airport, AU	daily rain	40.6 mm (1.6 in)	27.4 mm (1.1 in)	15 years	40 of 100 (Notable)
31 October 1938	Penshurst (Post Office), AU	daily rain	34.8 mm (1.4 in)	15.5 mm (0.6 in)	32 years	38 of 100 (Notable)
31 October 1938	Nidamangalam, IN	daily rain	93.5 mm (3.7 in)	58.4 mm (2.3 in)	12 years	38 of 100 (Notable)
31 October 1938	Tennant Creek Post Office, AU	monthly rain	36.1 mm (1.4 in)	4.1 mm (0.16 in)	47 years	36 of 100 (Notable)
31 October 1938	Grassy Hill Radio Otc, AU	daily rain	55.9 mm (2.2 in)	22.9 mm (0.9 in)	21 years	36 of 100 (Notable)
31 October 1938	Skipton Post Office, AU	daily rain	25.7 mm (1.0 in)	11.7 mm (0.5 in)	27 years	31 of 100 (Routine)
31 October 1938	Nemours (Ghazaouet), DZ	monthly low min	4.0 C (39.2 F)	1.0 C (1.8 F)	31 years	28 of 100 (Routine)
31 October 1938	Kumbhakonam, IN	daily rain	81.5 mm (3.2 in)	42.4 mm (1.7 in)	12 years	28 of 100 (Routine)
31 October 1938	Thiruthuraipoond, IN	daily rain	102.1 mm (4.0 in)	42.2 mm (1.7 in)	19 years	28 of 100 (Routine)
31 October 1938	Butterworth (Tnk), ZA	daily rain	43.9 mm (1.7 in)	24.1 mm (0.9 in)	7 years	28 of 100 (Routine)
31 October 1938	Rokewood (Kuruc A Ruc), AU	daily rain	25.4 mm (1.0 in)	9.1 mm (0.36 in)	24 years	27 of 100 (Routine)
31 October 1938	Dunvegan, CA	daily high min	1.7 C (35.1 F)	2.8 C (5.0 F)	56 years	27 of 100 (Routine)
31 October 1938	Tiruvarur, IN	daily rain	132.1 mm (5.2 in)	50.1 mm (2.0 in)	12 years	27 of 100 (Routine)
31 October 1938	Victoria River Downs, AU	daily rain	25.4 mm (1.0 in)	11.7 mm (0.5 in)	27 years	26 of 100 (Routine)
31 October 1938	Cranbrook (Cranbrook House), AU	daily rain	32.5 mm (1.3 in)	15.0 mm (0.6 in)	20 years	26 of 100 (Routine)
31 October 1938	Minicoy Obsy, IN	daily rain	70.9 mm (2.8 in)	28.7 mm (1.1 in)	24 years	26 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 1938

Records set or tied on this calendar date in each year from 1805 to 1938. 1938 had 399 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 1938-10-31: 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 20	306
20 to 40	11
40 to 60	6
60 to 80	0
80 to 100	1