Weather Records on 12 October 1946

554 weather records were set or tied worldwide on 12 October 1946. Highest significance: Koffiefontein (Pol), ZA.

Key Facts for 12 October 1946

On 12 October 1946, 554 weather records were set or tied at long-record stations worldwide.
96 were record highs and 257 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 6 monthly and 547 daily.
Koffiefontein (Pol) set a daily record precipitation of 47.0 mm (1.9 in) on 12 October 1946.
Across 163 earlier years (1805 to 2026) the same calendar date averaged 451 records.

Record Map

554 stations

554 station records on 12 October 1946 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 October 1946: highest significance records shown on the map
Station	Country	Type	Value	Significance
Koffiefontein (Pol)	South Africa	Record daily precipitation	47.0 mm (1.9 in)	62 of 100 (Major)
Vicosa Do Ceara	Brazil	Record daily precipitation	70.1 mm (2.8 in)	55 of 100 (Notable)
Brockville	Canada	Record daily precipitation	49.3 mm (1.9 in)	54 of 100 (Notable)
Coshocton Wpc Plt	United States	Record daily precipitation	50.3 mm (2.0 in)	51 of 100 (Notable)
New Castle 1 N	United States	Record daily precipitation	42.4 mm (1.7 in)	50 of 100 (Notable)
Palasbari	India	Record daily precipitation	81.3 mm (3.2 in)	49 of 100 (Notable)
Canfield 1 S	United States	Record daily precipitation	49.5 mm (1.9 in)	47 of 100 (Notable)
Nominingue	Canada	Record daily precipitation	57.2 mm (2.3 in)	46 of 100 (Notable)
Lockport 2SE	United States	Record daily precipitation	46.7 mm (1.8 in)	45 of 100 (Notable)
Fredonia	United States	Record daily precipitation	48.3 mm (1.9 in)	44 of 100 (Notable)
Geneva Exp STN	United States	Record daily precipitation	40.4 mm (1.6 in)	44 of 100 (Notable)
Hemlock	United States	Record daily precipitation	37.6 mm (1.5 in)	43 of 100 (Notable)
Canton 4 SE	United States	Record daily precipitation	46.2 mm (1.8 in)	43 of 100 (Notable)
Zanesville Wwtp	United States	Record daily precipitation	40.9 mm (1.6 in)	42 of 100 (Notable)
Welland	Canada	Record daily precipitation	45.2 mm (1.8 in)	41 of 100 (Notable)
Edmonton 3 W	United States	Record daily precipitation	35.1 mm (1.4 in)	39 of 100 (Notable)
Cadiz	United States	Record daily precipitation	36.6 mm (1.4 in)	39 of 100 (Notable)
Millport 4 NE	United States	Record daily precipitation	43.4 mm (1.7 in)	37 of 100 (Notable)
Avon	United States	Record daily precipitation	35.3 mm (1.4 in)	36 of 100 (Notable)
Goat Rock	United States	Record daily precipitation	36.6 mm (1.4 in)	35 of 100 (Notable)
Greenville 2 NE	United States	Record daily precipitation	52.6 mm (2.1 in)	35 of 100 (Notable)
Letchworth Park	United States	Record daily precipitation	38.4 mm (1.5 in)	34 of 100 (Routine)
Barrage Gouin	Canada	Record daily precipitation	73.9 mm (2.9 in)	33 of 100 (Routine)
Angola	United States	Record daily precipitation	48.3 mm (1.9 in)	32 of 100 (Routine)
Angelica	United States	Record daily precipitation	35.6 mm (1.4 in)	32 of 100 (Routine)
Farrell Sharon	United States	Record daily precipitation	31.8 mm (1.3 in)	32 of 100 (Routine)
New Cumberland L/D	United States	Record daily precipitation	34.5 mm (1.4 in)	32 of 100 (Routine)
Belleville	Canada	Record daily precipitation	37.1 mm (1.5 in)	30 of 100 (Routine)
Ottawa Cda	Canada	Record daily precipitation	50.5 mm (2.0 in)	29 of 100 (Routine)
Union Springs 9 S	United States	Record daily precipitation	27.9 mm (1.1 in)	29 of 100 (Routine)
Middelplaats	South Africa	Record daily precipitation	45.7 mm (1.8 in)	28 of 100 (Routine)
Ft Deposit	United States	Record daily precipitation	44.7 mm (1.8 in)	28 of 100 (Routine)
Crossville Ed & Rsch STN	United States	Record daily precipitation	31.8 mm (1.3 in)	28 of 100 (Routine)
Periyanaickampal	India	Record daily precipitation	73.4 mm (2.9 in)	27 of 100 (Routine)
Matatiele	South Africa	Record daily precipitation	27.9 mm (1.1 in)	26 of 100 (Routine)
W Pt	United States	Record daily precipitation	25.9 mm (1.0 in)	26 of 100 (Routine)
Gabriels	United States	Record daily precipitation	31.2 mm (1.2 in)	26 of 100 (Routine)
Roxbury	United States	Record high minimum temperature	15.6 C (60.1 F)	26 of 100 (Routine)
Tupper Lake Sunmount	United States	Record daily precipitation	35.3 mm (1.4 in)	26 of 100 (Routine)
Dickinson Exp STN	United States	Record snow depth	10.2 cm (4.0 in)	26 of 100 (Routine)
Northfield	United States	Record high minimum temperature	14.4 C (57.9 F)	26 of 100 (Routine)
Valapady	India	Record daily precipitation	70.4 mm (2.8 in)	25 of 100 (Routine)
Lancaster 2 NW	United States	Record daily precipitation	25.7 mm (1.0 in)	25 of 100 (Routine)
New River	United States	Record daily precipitation	48.3 mm (1.9 in)	25 of 100 (Routine)
Morrisburg	Canada	Record daily precipitation	34.8 mm (1.4 in)	24 of 100 (Routine)
Council	United States	Record low minimum temperature	-6.7 C (19.9 F)	24 of 100 (Routine)
Richmond	United States	Record daily precipitation	44.7 mm (1.8 in)	24 of 100 (Routine)
Portal	United States	Record low maximum temperature	-0.6 C (30.9 F)	24 of 100 (Routine)
Cambridge St Hospital	United States	Record daily precipitation	36.3 mm (1.4 in)	24 of 100 (Routine)
Tyndall	United States	Record low maximum temperature	5.0 C (41.0 F)	24 of 100 (Routine)
Sherbrooke	Canada	Record high minimum temperature	15.0 C (59.0 F)	23 of 100 (Routine)
Ootacamund Obsy Sr	India	Record daily precipitation	32.3 mm (1.3 in)	23 of 100 (Routine)
Troy	United States	Record daily precipitation	44.2 mm (1.7 in)	23 of 100 (Routine)
Mt Pleasant 2 W	United States	Record daily precipitation	26.2 mm (1.0 in)	23 of 100 (Routine)
Glens Falls Fire STN	United States	Record high minimum temperature	15.0 C (59.0 F)	23 of 100 (Routine)
College STN 6 SW	United States	Record low minimum temperature	4.4 C (39.9 F)	23 of 100 (Routine)
La Sal	United States	Record low minimum temperature	-7.8 C (18.0 F)	23 of 100 (Routine)
Chelsea	United States	Record high minimum temperature	13.3 C (55.9 F)	23 of 100 (Routine)
New Martinsville 4 NNE	United States	Record daily precipitation	35.8 mm (1.4 in)	23 of 100 (Routine)
Evanston 1 E	United States	Record low minimum temperature	-9.4 C (15.1 F)	23 of 100 (Routine)

Counts by Type and Timescale

554 records

Records set or tied on 12 October 1946 by type: Highest daily maximum 18, Lowest daily maximum 74, Highest daily minimum 78, Lowest daily minimum 183, Heaviest daily rainfall 188, Heaviest daily snowfall 12, Deepest snow cover 1.

Records on 12 October 1946 by type
Record type	Records
Highest daily maximum	18
Lowest daily maximum	74
Highest daily minimum	78
Lowest daily minimum	183
Heaviest daily rainfall	188
Heaviest daily snowfall	12
Deepest snow cover	1

Records on 12 October 1946 by timescale: all-time 1, monthly 6, daily 547.

How Much Records Were Beaten By

455 broken records

Margins by which the 455 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 102.0. Ties are not counted.

Top 20 by Significance

12 October 1946

Top 20 records on 12 October 1946 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 October 1946	Koffiefontein (Pol), ZA	daily rain	47.0 mm (1.9 in)	36.8 mm (1.4 in)	59 years	62 of 100 (Major)
12 October 1946	Vicosa Do Ceara, BR	monthly rain	70.1 mm (2.8 in)	40.5 mm (1.6 in)	6 years	55 of 100 (Notable)
12 October 1946	Brockville, CA	daily rain	49.3 mm (1.9 in)	24.9 mm (1.0 in)	72 years	54 of 100 (Notable)
12 October 1946	Coshocton Wpc Plt, US	daily rain	50.3 mm (2.0 in)	39.1 mm (1.5 in)	27 years	51 of 100 (Notable)
12 October 1946	New Castle 1 N, US	daily rain	42.4 mm (1.7 in)	31.5 mm (1.2 in)	27 years	50 of 100 (Notable)
12 October 1946	Palasbari, IN	daily rain	81.3 mm (3.2 in)	65.8 mm (2.6 in)	17 years	49 of 100 (Notable)
12 October 1946	Canfield 1 S, US	daily rain	49.5 mm (1.9 in)	29.7 mm (1.2 in)	19 years	47 of 100 (Notable)
12 October 1946	Nominingue, CA	daily rain	57.2 mm (2.3 in)	34.3 mm (1.4 in)	17 years	46 of 100 (Notable)
12 October 1946	Lockport 2SE, US	daily rain	46.7 mm (1.8 in)	28.2 mm (1.1 in)	28 years	45 of 100 (Notable)
12 October 1946	Fredonia, US	daily rain	48.3 mm (1.9 in)	29.8 mm (1.2 in)	19 years	44 of 100 (Notable)
12 October 1946	Geneva Exp STN, US	daily rain	40.4 mm (1.6 in)	28.5 mm (1.1 in)	32 years	44 of 100 (Notable)
12 October 1946	Hemlock, US	daily rain	37.6 mm (1.5 in)	29.2 mm (1.1 in)	13 years	43 of 100 (Notable)
12 October 1946	Canton 4 SE, US	daily rain	46.2 mm (1.8 in)	28.9 mm (1.1 in)	19 years	43 of 100 (Notable)
12 October 1946	Zanesville Wwtp, US	daily rain	40.9 mm (1.6 in)	25.7 mm (1.0 in)	27 years	42 of 100 (Notable)
12 October 1946	Welland, CA	daily rain	45.2 mm (1.8 in)	24.9 mm (1.0 in)	19 years	41 of 100 (Notable)
12 October 1946	Edmonton 3 W, US	daily rain	35.1 mm (1.4 in)	23.4 mm (0.9 in)	44 years	39 of 100 (Notable)
12 October 1946	Cadiz, US	daily rain	36.6 mm (1.4 in)	29.0 mm (1.1 in)	28 years	39 of 100 (Notable)
12 October 1946	Millport 4 NE, US	daily rain	43.4 mm (1.7 in)	22.8 mm (0.9 in)	19 years	37 of 100 (Notable)
12 October 1946	Avon, US	daily rain	35.3 mm (1.4 in)	16.2 mm (0.6 in)	36 years	36 of 100 (Notable)
12 October 1946	Goat Rock, US	daily rain	36.6 mm (1.4 in)	35.6 mm (1.4 in)	7 years	35 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 1946

Records set or tied on this calendar date in each year from 1805 to 1946. 1946 had 554 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 1946-10-12: 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 20	422
20 to 40	29
40 to 60	2
60 to 80	1
80 to 100	0
100 to 120	1