Weather Records on 12 December 1946

761 weather records were set or tied worldwide on 12 December 1946. Highest significance: Keremeos, CA.

Key Facts for 12 December 1946

On 12 December 1946, 761 weather records were set or tied at long-record stations worldwide.
351 were record highs and 39 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 20 monthly and 741 daily.
Keremeos set a monthly record daily precipitation of 27.9 mm (1.1 in) on 12 December 1946.
Across 153 earlier years (1796 to 2025) the same calendar date averaged 467 records.

Record Map

761 stations

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

Weather records on 12 December 1946: highest significance records shown on the map
Station	Country	Type	Value	Significance
Keremeos	Canada	Record daily precipitation	27.9 mm (1.1 in)	61 of 100 (Major)
Keremeos	Canada	Record daily snowfall	27.9 cm (11.0 in)	59 of 100 (Notable)
Mt Clemens Ang Base	United States	Record daily precipitation	55.1 mm (2.2 in)	59 of 100 (Notable)
Atchison	United States	Record daily precipitation	53.8 mm (2.1 in)	57 of 100 (Notable)
Ottawa 4SW	United States	Record daily precipitation	47.2 mm (1.9 in)	56 of 100 (Notable)
Burlington Muni AP	United States	Record daily precipitation	42.4 mm (1.7 in)	56 of 100 (Notable)
Horton	United States	Record daily precipitation	36.3 mm (1.4 in)	55 of 100 (Notable)
Saginaw Mbs Intl AP	United States	Record daily precipitation	35.1 mm (1.4 in)	54 of 100 (Notable)
Galesburg	United States	Record daily precipitation	44.5 mm (1.8 in)	53 of 100 (Notable)
Eskridge	United States	Record daily precipitation	50.5 mm (2.0 in)	53 of 100 (Notable)
Adrian 2 NNE	United States	Record daily precipitation	43.2 mm (1.7 in)	53 of 100 (Notable)
Southampton	Canada	Record daily precipitation	34.0 mm (1.3 in)	52 of 100 (Notable)
Newton	United States	Record daily precipitation	42.4 mm (1.7 in)	52 of 100 (Notable)
La Harpe	United States	Record daily precipitation	50.0 mm (2.0 in)	51 of 100 (Notable)
Alva 1W	United States	Record daily precipitation	40.1 mm (1.6 in)	51 of 100 (Notable)
Macomb	United States	Record daily precipitation	48.8 mm (1.9 in)	50 of 100 (Notable)
Mt Hope	United States	Record daily precipitation	54.6 mm (2.1 in)	50 of 100 (Notable)
Owosso Wwtp	United States	Record daily precipitation	36.8 mm (1.4 in)	50 of 100 (Notable)
Elgin Water	United States	Record daily precipitation	34.3 mm (1.4 in)	49 of 100 (Notable)
Paw Paw 2S	United States	Record daily precipitation	38.6 mm (1.5 in)	49 of 100 (Notable)
Sycamore	United States	Record daily precipitation	38.4 mm (1.5 in)	49 of 100 (Notable)
Norwich	United States	Record daily precipitation	35.6 mm (1.4 in)	49 of 100 (Notable)
Fairview	United States	Record daily precipitation	46.0 mm (1.8 in)	47 of 100 (Notable)
Galva	United States	Record daily precipitation	37.6 mm (1.5 in)	47 of 100 (Notable)
Kirksville	United States	Record daily precipitation	58.4 mm (2.3 in)	47 of 100 (Notable)
Orofino	United States	Record daily precipitation	33.0 mm (1.3 in)	46 of 100 (Notable)
Valparaiso Wtr Wks	United States	Record daily precipitation	47.8 mm (1.9 in)	46 of 100 (Notable)
Charlotte	United States	Record daily precipitation	52.1 mm (2.1 in)	46 of 100 (Notable)
Chillicothe 2S	United States	Record daily precipitation	32.5 mm (1.3 in)	46 of 100 (Notable)
Springfield Mad Rvr St	United States	Record daily precipitation	34.5 mm (1.4 in)	46 of 100 (Notable)
Orion	Australia	Record daily precipitation	80.0 mm (3.1 in)	44 of 100 (Notable)
Kitchener	Canada	Record daily precipitation	44.5 mm (1.8 in)	44 of 100 (Notable)
Dwight	United States	Record daily precipitation	37.3 mm (1.5 in)	44 of 100 (Notable)
Greensburg	United States	Record daily precipitation	40.4 mm (1.6 in)	44 of 100 (Notable)
Holland Wtp	United States	Record daily precipitation	33.0 mm (1.3 in)	44 of 100 (Notable)
Howell Wwtp	United States	Record daily precipitation	38.1 mm (1.5 in)	44 of 100 (Notable)
Steffenville	United States	Record daily precipitation	43.7 mm (1.7 in)	44 of 100 (Notable)
Summit Grd STN	United States	Record daily precipitation	102.4 mm (4.0 in)	44 of 100 (Notable)
Hedley	Canada	Record daily snowfall	25.4 cm (10.0 in)	43 of 100 (Notable)
Subiaco	United States	Record daily precipitation	67.6 mm (2.7 in)	43 of 100 (Notable)
Leavenworth	United States	Record daily precipitation	42.7 mm (1.7 in)	43 of 100 (Notable)
St Joseph Wbo	United States	Record daily precipitation	32.5 mm (1.3 in)	41 of 100 (Notable)
Minonk	United States	Record daily precipitation	33.5 mm (1.3 in)	40 of 100 (Notable)
St Joseph	United States	Record daily precipitation	32.5 mm (1.3 in)	40 of 100 (Notable)
Gladwin	United States	Record daily precipitation	38.6 mm (1.5 in)	39 of 100 (Notable)
Monmouth	United States	Record daily precipitation	39.4 mm (1.6 in)	38 of 100 (Notable)
Quincy	United States	Record daily precipitation	38.1 mm (1.5 in)	38 of 100 (Notable)
Streator 2SE	United States	Record daily precipitation	40.1 mm (1.6 in)	38 of 100 (Notable)
Woodward	United States	Record daily precipitation	29.2 mm (1.1 in)	38 of 100 (Notable)
Headworks Portland Wtr B	United States	Record daily precipitation	69.3 mm (2.7 in)	38 of 100 (Notable)
Columboola	Australia	Record daily precipitation	77.5 mm (3.1 in)	37 of 100 (Notable)
Toronto	Canada	Record daily precipitation	25.7 mm (1.0 in)	37 of 100 (Notable)
Moores Hill	United States	Record daily precipitation	42.7 mm (1.7 in)	37 of 100 (Notable)
Holton	United States	Record daily precipitation	29.5 mm (1.2 in)	37 of 100 (Notable)
Walnut	United States	Record daily precipitation	34.0 mm (1.3 in)	36 of 100 (Notable)
Council Grove	United States	Record daily precipitation	36.3 mm (1.4 in)	36 of 100 (Notable)
Cascade Locks	United States	Record daily precipitation	88.9 mm (3.5 in)	36 of 100 (Notable)
Goderich	Canada	Record high minimum temperature	5.6 C (42.1 F)	35 of 100 (Notable)
Mauzy	United States	Record daily precipitation	45.7 mm (1.8 in)	35 of 100 (Notable)
Hastings	United States	Record daily precipitation	40.1 mm (1.6 in)	35 of 100 (Notable)

Counts by Type and Timescale

761 records

Records set or tied on 12 December 1946 by type: Highest daily maximum 177, Lowest daily maximum 27, Highest daily minimum 174, Lowest daily minimum 12, Heaviest daily rainfall 346, Heaviest daily snowfall 24, Deepest snow cover 1.

Records on 12 December 1946 by type
Record type	Records
Highest daily maximum	177
Lowest daily maximum	27
Highest daily minimum	174
Lowest daily minimum	12
Heaviest daily rainfall	346
Heaviest daily snowfall	24
Deepest snow cover	1

Records on 12 December 1946 by timescale: all-time 0, monthly 20, daily 741.

How Much Records Were Beaten By

642 broken records

Margins by which the 642 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 147.0. Ties are not counted.

Top 20 by Significance

12 December 1946

Top 20 records on 12 December 1946 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 December 1946	Keremeos, CA	monthly rain	27.9 mm (1.1 in)	10.1 mm (0.4 in)	53 years	61 of 100 (Major)
12 December 1946	Keremeos, CA	monthly snowfall	27.9 cm (11.0 in)	14.7 cm (5.8 in)	14 years	59 of 100 (Notable)
12 December 1946	Mt Clemens Ang Base, US	daily rain	55.1 mm (2.2 in)	40.6 mm (1.6 in)	46 years	59 of 100 (Notable)
12 December 1946	Atchison, US	daily rain	53.8 mm (2.1 in)	37.3 mm (1.5 in)	43 years	57 of 100 (Notable)
12 December 1946	Ottawa 4SW, US	daily rain	47.2 mm (1.9 in)	25.4 mm (1.0 in)	46 years	56 of 100 (Notable)
12 December 1946	Burlington Muni AP, US	daily rain	42.4 mm (1.7 in)	29.7 mm (1.2 in)	36 years	56 of 100 (Notable)
12 December 1946	Horton, US	daily rain	36.3 mm (1.4 in)	29.4 mm (1.2 in)	44 years	55 of 100 (Notable)
12 December 1946	Saginaw Mbs Intl AP, US	daily rain	35.1 mm (1.4 in)	20.9 mm (0.8 in)	43 years	54 of 100 (Notable)
12 December 1946	Galesburg, US	daily rain	44.5 mm (1.8 in)	33.1 mm (1.3 in)	43 years	53 of 100 (Notable)
12 December 1946	Eskridge, US	daily rain	50.5 mm (2.0 in)	37.8 mm (1.5 in)	28 years	53 of 100 (Notable)
12 December 1946	Adrian 2 NNE, US	daily rain	43.2 mm (1.7 in)	28.0 mm (1.1 in)	43 years	53 of 100 (Notable)
12 December 1946	Southampton, CA	daily rain	34.0 mm (1.3 in)	16.5 mm (0.6 in)	51 years	52 of 100 (Notable)
12 December 1946	Newton, US	daily rain	42.4 mm (1.7 in)	32.7 mm (1.3 in)	28 years	52 of 100 (Notable)
12 December 1946	La Harpe, US	daily rain	50.0 mm (2.0 in)	32.5 mm (1.3 in)	23 years	51 of 100 (Notable)
12 December 1946	Alva 1W, US	daily rain	40.1 mm (1.6 in)	29.4 mm (1.2 in)	28 years	51 of 100 (Notable)
12 December 1946	Macomb, US	daily rain	48.8 mm (1.9 in)	32.3 mm (1.3 in)	23 years	50 of 100 (Notable)
12 December 1946	Mt Hope, US	daily rain	54.6 mm (2.1 in)	43.9 mm (1.7 in)	17 years	50 of 100 (Notable)
12 December 1946	Owosso Wwtp, US	daily rain	36.8 mm (1.4 in)	26.6 mm (1.0 in)	16 years	50 of 100 (Notable)
12 December 1946	Elgin Water, US	daily rain	34.3 mm (1.4 in)	29.7 mm (1.2 in)	16 years	49 of 100 (Notable)
12 December 1946	Paw Paw 2S, US	daily rain	38.6 mm (1.5 in)	27.4 mm (1.1 in)	23 years	49 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

1796 to 1946

Records set or tied on this calendar date in each year from 1796 to 1946. 1946 had 761 records.

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

Records on 12-12 in each year
Year	Records
1796	2
1798	1
1802	1
1808	2
1814	1
1825	2
1831	1
1835	2
1846	1
1855	2
1861	1
1863	3
1870	2
1871	5
1873	2
1879	2
1882	3
1887	1
1889	1
1891	2
1892	2
1893	8
1894	3
1895	1
1896	4
1897	3
1898	20
1899	11
1900	5
1901	4
1902	7
1903	18
1904	20
1905	10
1906	14
1907	8
1908	25
1909	20
1910	39
1911	104
1912	53
1913	20
1914	19
1915	46
1916	115
1917	246
1918	33
1919	23
1920	41
1921	63
1922	61
1923	91
1924	130
1925	75
1926	143
1927	335
1928	234
1929	405
1930	45
1931	522
1932	813
1933	358
1934	430
1935	266
1936	142
1937	468
1938	103
1939	418
1940	621
1941	260
1942	257
1943	165
1944	688
1945	212
1946	761
1947	295
1948	282
1949	789
1950	364
1951	175
1952	501
1953	288
1954	696
1955	381
1956	441
1957	1,118
1958	884
1959	464
1960	710
1961	1,481
1962	1,495
1963	439
1964	459
1965	1,045
1966	369
1967	565
1968	727
1969	499
1970	366
1971	585
1972	1,669
1973	397
1974	191
1975	492
1976	319
1977	907
1978	382
1979	1,016
1980	583
1981	734
1982	867
1983	816
1984	808
1985	1,384
1986	408
1987	468
1988	1,030
1989	930
1990	676
1991	1,980
1992	818
1993	887
1994	1,172
1995	2,030
1996	1,391
1997	869
1998	1,103
1999	952
2000	2,510
2001	700
2002	683
2003	537
2004	727
2005	769
2006	886
2007	1,315
2008	1,424
2009	818
2010	1,501
2011	621
2012	684
2013	646
2014	1,040
2015	1,496
2016	530
2017	808
2018	256
2019	418
2020	507
2021	441
2022	767
2023	544
2024	328
2025	1,485

Download the Data

Data for records on 1946-12-12: 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	568
20 to 40	55
40 to 60	12
60 to 80	5
80 to 100	1
100 to 120	0
120 to 140	0
140 to 160	1