Weather Records on 12 October 1940

235 weather records were set or tied worldwide on 12 October 1940. Highest significance: Greenough, AU.

Key Facts for 12 October 1940

On 12 October 1940, 235 weather records were set or tied at long-record stations worldwide.
114 were record highs and 24 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 3 monthly and 232 daily.
Greenough set a daily record precipitation of 27.9 mm (1.1 in) on 12 October 1940.
Across 163 earlier years (1805 to 2026) the same calendar date averaged 453 records.

Record Map

235 stations

235 station records on 12 October 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 October 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Greenough	Australia	Record daily precipitation	27.9 mm (1.1 in)	49 of 100 (Notable)
Bookara	Australia	Record daily precipitation	32.3 mm (1.3 in)	47 of 100 (Notable)
Pudukkottai	India	Record daily precipitation	104.6 mm (4.1 in)	47 of 100 (Notable)
Bowgada	Australia	Record daily precipitation	27.4 mm (1.1 in)	45 of 100 (Notable)
Robe Comparison	Australia	Record high maximum temperature	29.8 C (85.6 F)	40 of 100 (Notable)
Hobart (Ellerslie Road)	Australia	Record high maximum temperature	31.7 C (89.1 F)	38 of 100 (Notable)
Kizljar	Russia	Record daily precipitation	39.6 mm (1.6 in)	36 of 100 (Notable)
Mount Gambier Post Office	Australia	Record high maximum temperature	33.3 C (91.9 F)	33 of 100 (Routine)
Arantangi	India	Record daily precipitation	71.6 mm (2.8 in)	33 of 100 (Routine)
Edjudina	Australia	Record daily precipitation	40.6 mm (1.6 in)	31 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record high maximum temperature	31.7 C (89.1 F)	29 of 100 (Routine)
Belgaum	India	Record daily precipitation	34.5 mm (1.4 in)	29 of 100 (Routine)
Melbourne Regional Office	Australia	Record high maximum temperature	33.3 C (91.9 F)	27 of 100 (Routine)
Davangire	India	Record daily precipitation	49.3 mm (1.9 in)	27 of 100 (Routine)
Adelaide West Terrace	Australia	Record high maximum temperature	35.9 C (96.6 F)	26 of 100 (Routine)
Kalghatgi	India	Record daily precipitation	33.0 mm (1.3 in)	26 of 100 (Routine)
Oxford	United Kingdom	Record low minimum temperature	-2.2 C (28.0 F)	26 of 100 (Routine)
Mildura Post Office	Australia	Record high maximum temperature	36.3 C (97.3 F)	25 of 100 (Routine)
Oakley	United States	Record high maximum temperature	32.8 C (91.0 F)	24 of 100 (Routine)
Honomanu 450	United States	Record daily precipitation	62.2 mm (2.4 in)	24 of 100 (Routine)
Mildura Post Office	Australia	Record high minimum temperature	17.4 C (63.3 F)	23 of 100 (Routine)
Port Lincoln	Australia	Record high maximum temperature	34.4 C (93.9 F)	22 of 100 (Routine)
Wagga Wagga (Kooringal)	Australia	Record high maximum temperature	32.8 C (91.0 F)	22 of 100 (Routine)
Sampagaon-Bailh	India	Record daily precipitation	82.8 mm (3.3 in)	22 of 100 (Routine)
Attur	India	Record daily precipitation	54.4 mm (2.1 in)	22 of 100 (Routine)
Dongara	Australia	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Wyalkatchem	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Moora	Australia	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
Dowerin	Australia	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
Round Hill	Australia	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
Walebing	Australia	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)
Carnamah	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Merredin	Australia	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Nangeenan	Australia	Record daily precipitation	21.8 mm (0.9 in)	20 of 100 (Routine)
Mangowine	Australia	Record daily precipitation	17.5 mm (0.7 in)	20 of 100 (Routine)
Berkshire Valley	Australia	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Three Springs	Australia	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Pindathuna	Australia	Record daily precipitation	11.7 mm (0.5 in)	20 of 100 (Routine)
Kokardine	Australia	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
Mingenew	Australia	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)
Codg Codgen	Australia	Record daily precipitation	17.0 mm (0.7 in)	20 of 100 (Routine)
Grassy Hill Radio Otc	Australia	Record daily precipitation	10.4 mm (0.4 in)	20 of 100 (Routine)
Fitzroy Crossing Comp.	Australia	Record daily precipitation	1.5 mm (0.06 in)	20 of 100 (Routine)
Mullewa	Australia	Record daily precipitation	15.0 mm (0.6 in)	20 of 100 (Routine)
White Peak	Australia	Record daily precipitation	17.0 mm (0.7 in)	20 of 100 (Routine)
Baandee	Australia	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)
Ejanding	Australia	Record daily precipitation	11.7 mm (0.5 in)	20 of 100 (Routine)
Walk Walkin	Australia	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)
Walgormouring	Australia	Record daily precipitation	13.7 mm (0.5 in)	20 of 100 (Routine)
Snowtown	Australia	Record high maximum temperature	37.0 C (98.6 F)	20 of 100 (Routine)
Low Isles Lighthouse	Australia	Record daily precipitation	2.5 mm (0.10 in)	20 of 100 (Routine)
Hvar	Croatia	Record daily precipitation	16.4 mm (0.6 in)	20 of 100 (Routine)
Kualapuu 534	United States	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Nungarin	Australia	Record daily precipitation	19.1 mm (0.8 in)	19 of 100 (Routine)
Tiruppathur	India	Record daily precipitation	49.8 mm (2.0 in)	19 of 100 (Routine)
Cardonia	Australia	Record daily precipitation	16.3 mm (0.6 in)	18 of 100 (Routine)
Turuvekere	India	Record daily precipitation	57.4 mm (2.3 in)	18 of 100 (Routine)
Ft Stanton	United States	Record daily precipitation	10.2 mm (0.4 in)	18 of 100 (Routine)
Liveringa Upper	Australia	Record daily precipitation	1.0 mm (0.04 in)	17 of 100 (Routine)
Kellerberrin	Australia	Record daily precipitation	14.2 mm (0.6 in)	17 of 100 (Routine)

Counts by Type and Timescale

235 records

Records set or tied on 12 October 1940 by type: Highest daily maximum 72, Lowest daily maximum 10, Highest daily minimum 42, Lowest daily minimum 14, Heaviest daily rainfall 97.

Records on 12 October 1940 by type
Record type	Records
Highest daily maximum	72
Lowest daily maximum	10
Highest daily minimum	42
Lowest daily minimum	14
Heaviest daily rainfall	97
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 12 October 1940 by timescale: all-time 0, monthly 3, daily 232.

How Much Records Were Beaten By

185 broken records

Margins by which the 185 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 67.3. Ties are not counted.

Top 20 by Significance

12 October 1940

Top 20 records on 12 October 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 October 1940	Greenough, AU	daily rain	27.9 mm (1.1 in)	17.7 mm (0.7 in)	15 years	49 of 100 (Notable)
12 October 1940	Bookara, AU	daily rain	32.3 mm (1.3 in)	22.4 mm (0.9 in)	15 years	47 of 100 (Notable)
12 October 1940	Pudukkottai, IN	daily rain	104.6 mm (4.1 in)	67.3 mm (2.6 in)	35 years	47 of 100 (Notable)
12 October 1940	Bowgada, AU	daily rain	27.4 mm (1.1 in)	22.6 mm (0.9 in)	15 years	45 of 100 (Notable)
12 October 1940	Robe Comparison, AU	daily high max	29.8 C (85.6 F)	6.5 C (11.7 F)	51 years	40 of 100 (Notable)
12 October 1940	Hobart (Ellerslie Road), AU	daily high max	31.7 C (89.1 F)	7.3 C (13.1 F)	51 years	38 of 100 (Notable)
12 October 1940	Kizljar, RU	monthly rain	39.6 mm (1.6 in)	7.6 mm (0.30 in)	12 years	36 of 100 (Notable)
12 October 1940	Mount Gambier Post Office, AU	daily high max	33.3 C (91.9 F)	9.7 C (17.5 F)	32 years	33 of 100 (Routine)
12 October 1940	Arantangi, IN	daily rain	71.6 mm (2.8 in)	48.2 mm (1.9 in)	27 years	33 of 100 (Routine)
12 October 1940	Edjudina, AU	daily rain	40.6 mm (1.6 in)	24.1 mm (0.9 in)	27 years	31 of 100 (Routine)
12 October 1940	Cape Otway Lighthouse, AU	daily high max	31.7 C (89.1 F)	5.0 C (9.0 F)	37 years	29 of 100 (Routine)
12 October 1940	Belgaum, IN	daily rain	34.5 mm (1.4 in)	19.3 mm (0.8 in)	38 years	29 of 100 (Routine)
12 October 1940	Melbourne Regional Office, AU	daily high max	33.3 C (91.9 F)	3.0 C (5.4 F)	44 years	27 of 100 (Routine)
12 October 1940	Davangire, IN	daily rain	49.3 mm (1.9 in)	29.5 mm (1.2 in)	29 years	27 of 100 (Routine)
12 October 1940	Adelaide West Terrace, AU	daily high max	35.9 C (96.6 F)	4.6 C (8.3 F)	41 years	26 of 100 (Routine)
12 October 1940	Kalghatgi, IN	daily rain	33.0 mm (1.3 in)	16.5 mm (0.6 in)	35 years	26 of 100 (Routine)
12 October 1940	Oxford, GB	daily low min	-2.2 C (28.0 F)	0.4 C (0.7 F)	52 years	26 of 100 (Routine)
12 October 1940	Mildura Post Office, AU	daily high max	36.3 C (97.3 F)	3.5 C (6.3 F)	47 years	25 of 100 (Routine)
12 October 1940	Oakley, US	monthly high max	32.8 C (91.0 F)	0.6 C (1.1 F)	30 years	24 of 100 (Routine)
12 October 1940	Honomanu 450, US	daily rain	62.2 mm (2.4 in)	24.9 mm (1.0 in)	31 years	24 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 1940

Records set or tied on this calendar date in each year from 1805 to 1940. 1940 had 235 records.

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

Records on 10-12 in each year
Year	Records
1805	2
1809	1
1810	1
1814	3
1822	1
1839	1
1841	1
1843	1
1850	1
1852	1
1854	1
1859	1
1860	2
1861	1
1867	1
1871	3
1873	2
1875	2
1876	5
1879	2
1881	2
1884	1
1885	2
1886	1
1887	2
1888	1
1889	1
1890	3
1891	1
1892	1
1893	2
1894	2
1895	2
1896	3
1897	3
1898	2
1899	3
1900	2
1901	6
1902	14
1903	16
1904	30
1905	13
1906	16
1907	10
1908	13
1909	30
1910	13
1911	10
1912	30
1913	33
1914	17
1915	34
1916	29
1917	53
1918	29
1919	53
1920	79
1921	102
1922	21
1923	200
1924	129
1925	107
1926	201
1927	195
1928	714
1929	165
1930	606
1931	283
1932	398
1933	155
1934	477
1935	209
1936	301
1937	185
1938	470
1939	198
1940	235
1941	226
1942	540
1943	418
1944	274
1945	321
1946	554
1947	358
1948	311
1949	725
1950	594
1951	391
1952	352
1953	252
1954	911
1955	383
1956	899
1957	473
1958	448
1959	501
1960	449
1961	436
1962	971
1963	459
1964	636
1965	157
1966	423
1967	623
1968	443
1969	1,828
1970	763
1971	382
1972	412
1973	673
1974	369
1975	830
1976	582
1977	832
1978	525
1979	898
1980	741
1981	1,201
1982	777
1983	992
1984	636
1985	872
1986	1,510
1987	1,530
1988	1,015
1989	543
1990	1,325
1991	948
1992	865
1993	1,145
1994	934
1995	1,238
1996	816
1997	1,851
1998	741
1999	641
2000	1,095
2001	1,194
2002	1,139
2003	1,043
2004	750
2005	872
2006	1,357
2007	566
2008	1,669
2009	2,300
2010	797
2011	906
2012	921
2013	558
2014	514
2015	964
2016	374
2017	1,068
2018	1,195
2019	1,321
2020	655
2021	1,294
2022	439
2023	904
2024	958
2025	624
2026	710

Download the Data

Data for records on 1940-10-12: 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 10	163
10 to 20	12
20 to 30	8
30 to 40	0
40 to 50	1
50 to 60	0
60 to 70	1