Weather Records on 15 December 1946

521 weather records were set or tied worldwide on 15 December 1946. Highest significance: Ponneri, IN.

Key Facts for 15 December 1946

On 15 December 1946, 521 weather records were set or tied at long-record stations worldwide.
246 were record highs and 75 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 11 monthly and 509 daily.
Ponneri set a daily record precipitation of 186.9 mm (7.4 in) on 15 December 1946.
Across 168 earlier years (1793 to 2025) the same calendar date averaged 455 records.

Record Map

521 stations

521 station records on 15 December 1946 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 December 1946: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ponneri	India	Record daily precipitation	186.9 mm (7.4 in)	49 of 100 (Notable)
Paravur	India	Record daily precipitation	73.7 mm (2.9 in)	45 of 100 (Notable)
Parasala	India	Record daily precipitation	108.0 mm (4.3 in)	44 of 100 (Notable)
Summit	United States	Record daily precipitation	80.0 mm (3.1 in)	44 of 100 (Notable)
Jefferson	United States	Record daily precipitation	47.5 mm (1.9 in)	43 of 100 (Notable)
Georgetown Post Office	Australia	Record high minimum temperature	31.1 C (88.0 F)	41 of 100 (Notable)
Albany 1 N	United States	Record daily precipitation	42.4 mm (1.7 in)	40 of 100 (Notable)
Johnson 11 ESE	United States	Record high minimum temperature	7.8 C (46.0 F)	32 of 100 (Routine)
Moose Jaw Chab	Canada	Record daily snowfall	14.0 cm (5.5 in)	31 of 100 (Routine)
Vriddhachalam	India	Record daily precipitation	90.7 mm (3.6 in)	31 of 100 (Routine)
Madras/Minambakkam	India	Record daily precipitation	91.7 mm (3.6 in)	29 of 100 (Routine)
Summit Grd STN	United States	Record daily precipitation	86.1 mm (3.4 in)	29 of 100 (Routine)
Alix	Canada	Record daily snowfall	15.2 cm (6.0 in)	28 of 100 (Routine)
Huntly	Australia	Record daily precipitation	38.6 mm (1.5 in)	27 of 100 (Routine)
Cajazeiras	Brazil	Record daily precipitation	25.5 mm (1.0 in)	27 of 100 (Routine)
University Exp STN	United States	Record low minimum temperature	-52.2 C (-62.0 F)	27 of 100 (Routine)
Caron	Canada	Record daily snowfall	15.2 cm (6.0 in)	26 of 100 (Routine)
Athipettu	India	Record daily precipitation	115.6 mm (4.6 in)	26 of 100 (Routine)
Braunschweig (T.H.)	Germany	Record low maximum temperature	-10.4 C (13.3 F)	25 of 100 (Routine)
Port Blair	India	Record daily precipitation	61.7 mm (2.4 in)	25 of 100 (Routine)
Detroit	United States	Record daily precipitation	67.8 mm (2.7 in)	25 of 100 (Routine)
Park City G.C.	United States	Record high maximum temperature	13.3 C (55.9 F)	25 of 100 (Routine)
Tooele	United States	Record high minimum temperature	7.2 C (45.0 F)	25 of 100 (Routine)
Wynnum Railway Station	Australia	Record daily precipitation	83.1 mm (3.3 in)	24 of 100 (Routine)
Black Creek	Australia	Record daily precipitation	30.7 mm (1.2 in)	24 of 100 (Routine)
Telegraph Point (Farrawells Ro	Australia	Record daily precipitation	72.4 mm (2.9 in)	24 of 100 (Routine)
Chaplin	Canada	Record daily snowfall	10.2 cm (4.0 in)	24 of 100 (Routine)
Holy Cross	United States	Record low maximum temperature	-33.3 C (-27.9 F)	24 of 100 (Routine)
Kickerbell	Australia	Record daily precipitation	45.0 mm (1.8 in)	23 of 100 (Routine)
Cheyyar	India	Record daily precipitation	49.3 mm (1.9 in)	23 of 100 (Routine)
Saint Maries	United States	Record daily precipitation	25.1 mm (1.0 in)	23 of 100 (Routine)
Curtis	United States	Record high maximum temperature	22.2 C (72.0 F)	23 of 100 (Routine)
Bell Ranch	United States	Record high maximum temperature	26.7 C (80.1 F)	23 of 100 (Routine)
Tower Hill	Australia	Record daily precipitation	30.7 mm (1.2 in)	22 of 100 (Routine)
Clausthal-Zellerfeld	Germany	Record low minimum temperature	-17.3 C (0.9 F)	22 of 100 (Routine)
Rapur	India	Record daily precipitation	76.2 mm (3.0 in)	22 of 100 (Routine)
Astrakan	Russia	Record low minimum temperature	-19.5 C (-3.1 F)	22 of 100 (Routine)
Vale	United States	Record high maximum temperature	13.9 C (57.0 F)	22 of 100 (Routine)
Ft Duchesne	United States	Record high maximum temperature	10.0 C (50.0 F)	22 of 100 (Routine)
Emerson	Canada	Record low minimum temperature	-26.7 C (-16.1 F)	21 of 100 (Routine)
Kalahasti	India	Record daily precipitation	61.2 mm (2.4 in)	21 of 100 (Routine)
Los Gatos	United States	Record low maximum temperature	6.1 C (43.0 F)	21 of 100 (Routine)
Colby	United States	Record high minimum temperature	2.8 C (37.0 F)	21 of 100 (Routine)
The Dalles	United States	Record high minimum temperature	6.7 C (44.1 F)	21 of 100 (Routine)
Concordia ASOS	United States	Record high minimum temperature	5.0 C (41.0 F)	21 of 100 (Routine)
Wendover AP AWOS	United States	Record high maximum temperature	18.3 C (64.9 F)	21 of 100 (Routine)
Wallowa	United States	Record daily precipitation	24.6 mm (1.0 in)	20 of 100 (Routine)
Stevensville	United States	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
Moose Jaw Chab	Canada	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Chandur Bazar	India	Record daily precipitation	8.4 mm (0.33 in)	20 of 100 (Routine)
Bodalkasa	India	Record daily precipitation	19.8 mm (0.8 in)	20 of 100 (Routine)
Alix	Canada	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Kholapur	India	Record daily precipitation	13.0 mm (0.5 in)	20 of 100 (Routine)
Caron	Canada	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Nagpur (Mayo Hospit	India	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Chaplin	Canada	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Koratagere	India	Record daily precipitation	7.6 mm (0.30 in)	20 of 100 (Routine)
Khairagarh	India	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Tharsa	India	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Cottonwood	United States	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)

Counts by Type and Timescale

521 records

Records set or tied on 15 December 1946 by type: Highest daily maximum 142, Lowest daily maximum 46, Highest daily minimum 104, Lowest daily minimum 29, Heaviest daily rainfall 173, Heaviest daily snowfall 26, Deepest snow cover 1.

Records on 15 December 1946 by type
Record type	Records
Highest daily maximum	142
Lowest daily maximum	46
Highest daily minimum	104
Lowest daily minimum	29
Heaviest daily rainfall	173
Heaviest daily snowfall	26
Deepest snow cover	1

Records on 15 December 1946 by timescale: all-time 1, monthly 11, daily 509.

How Much Records Were Beaten By

429 broken records

Margins by which the 429 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 114.0. Ties are not counted.

Top 20 by Significance

15 December 1946

Top 20 records on 15 December 1946 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 December 1946	Ponneri, IN	daily rain	186.9 mm (7.4 in)	109.2 mm (4.3 in)	40 years	49 of 100 (Notable)
15 December 1946	Paravur, IN	daily rain	73.7 mm (2.9 in)	68.6 mm (2.7 in)	4 years	45 of 100 (Notable)
15 December 1946	Parasala, IN	daily rain	108.0 mm (4.3 in)	77.0 mm (3.0 in)	1 year	44 of 100 (Notable)
15 December 1946	Summit, US	daily rain	80.0 mm (3.1 in)	54.1 mm (2.1 in)	12 years	44 of 100 (Notable)
15 December 1946	Jefferson, US	daily rain	47.5 mm (1.9 in)	31.8 mm (1.3 in)	35 years	43 of 100 (Notable)
15 December 1946	Georgetown Post Office, AU	all-time high min	31.1 C (88.0 F)	1.7 C (3.1 F)	26 years	41 of 100 (Notable)
15 December 1946	Albany 1 N, US	daily rain	42.4 mm (1.7 in)	22.1 mm (0.9 in)	46 years	40 of 100 (Notable)
15 December 1946	Johnson 11 ESE, US	monthly high min	7.8 C (46.0 F)	1.1 C (2.0 F)	51 years	32 of 100 (Routine)
15 December 1946	Moose Jaw Chab, CA	monthly snowfall	14.0 cm (5.5 in)	1.3 cm (0.5 in)	35 years	31 of 100 (Routine)
15 December 1946	Vriddhachalam, IN	daily rain	90.7 mm (3.6 in)	73.4 mm (2.9 in)	12 years	31 of 100 (Routine)
15 December 1946	Madras/Minambakkam, IN	daily rain	91.7 mm (3.6 in)	34.3 mm (1.4 in)	44 years	29 of 100 (Routine)
15 December 1946	Summit Grd STN, US	daily rain	86.1 mm (3.4 in)	37.8 mm (1.5 in)	7 years	29 of 100 (Routine)
15 December 1946	Alix, CA	daily snowfall	15.2 cm (6.0 in)	11.4 cm (4.5 in)	12 years	28 of 100 (Routine)
15 December 1946	Huntly, AU	daily rain	38.6 mm (1.5 in)	31.0 mm (1.2 in)	19 years	27 of 100 (Routine)
15 December 1946	Cajazeiras, BR	daily rain	25.5 mm (1.0 in)	22.5 mm (0.9 in)	31 years	27 of 100 (Routine)
15 December 1946	University Exp STN, US	monthly low min	-52.2 C (-62.0 F)	1.1 C (2.0 F)	41 years	27 of 100 (Routine)
15 December 1946	Caron, CA	daily snowfall	15.2 cm (6.0 in)	3.8 cm (1.5 in)	31 years	26 of 100 (Routine)
15 December 1946	Athipettu, IN	daily rain	115.6 mm (4.6 in)	25.9 mm (1.0 in)	44 years	26 of 100 (Routine)
15 December 1946	Braunschweig (T.H.), DE	daily low max	-10.4 C (13.3 F)	3.0 C (5.4 F)	46 years	25 of 100 (Routine)
15 December 1946	Port Blair, IN	daily rain	61.7 mm (2.4 in)	33.3 mm (1.3 in)	32 years	25 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

1793 to 1946

Records set or tied on this calendar date in each year from 1793 to 1946. 1946 had 521 records.

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

Records on 12-15 in each year
Year	Records
1793	1
1796	1
1798	1
1800	1
1808	3
1810	1
1814	3
1815	1
1825	1
1831	1
1840	2
1844	2
1846	3
1847	1
1854	3
1859	2
1863	1
1864	1
1866	1
1867	2
1868	1
1869	1
1870	1
1873	1
1874	1
1878	4
1879	2
1880	2
1881	3
1882	2
1883	1
1885	1
1886	1
1889	3
1890	1
1891	2
1892	4
1893	1
1894	4
1895	1
1896	5
1897	2
1899	12
1900	5
1901	21
1902	3
1903	7
1904	9
1905	6
1906	9
1907	10
1908	5
1909	5
1910	4
1911	23
1912	42
1913	13
1914	239
1915	180
1916	40
1917	40
1918	54
1919	28
1920	35
1921	26
1922	65
1923	132
1924	358
1925	187
1926	226
1927	235
1928	388
1929	500
1930	160
1931	284
1932	385
1933	796
1934	199
1935	140
1936	286
1937	310
1938	100
1939	637
1940	464
1941	373
1942	385
1943	486
1944	281
1945	420
1946	521
1947	634
1948	1,239
1949	135
1950	292
1951	962
1952	367
1953	270
1954	413
1955	371
1956	531
1957	304
1958	531
1959	560
1960	313
1961	883
1962	979
1963	670
1964	371
1965	759
1966	275
1967	948
1968	510
1969	352
1970	215
1971	1,739
1972	1,159
1973	615
1974	511
1975	1,230
1976	349
1977	963
1978	499
1979	560
1980	1,085
1981	1,243
1982	831
1983	1,229
1984	1,397
1985	1,077
1986	502
1987	1,740
1988	519
1989	2,753
1990	846
1991	636
1992	1,263
1993	734
1994	676
1995	848
1996	727
1997	1,521
1998	1,216
1999	621
2000	1,154
2001	1,026
2002	831
2003	846
2004	795
2005	953
2006	1,491
2007	973
2008	1,789
2009	930
2010	1,705
2011	780
2012	1,058
2013	701
2014	1,045
2015	1,398
2016	1,024
2017	332
2018	539
2019	547
2020	400
2021	1,182
2022	1,057
2023	794
2024	369
2025	2,115

Download the Data

Data for records on 1946-12-15: 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	399
20 to 40	22
40 to 60	2
60 to 80	4
80 to 100	0
100 to 120	2