Weather Records on 17 December 1947

258 weather records were set or tied worldwide on 17 December 1947. Highest significance: Kumsi, IN.

Key Facts for 17 December 1947

On 17 December 1947, 258 weather records were set or tied at long-record stations worldwide.
36 were record highs and 17 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 250 daily.
Kumsi set a monthly record daily precipitation of 107.2 mm (4.2 in) on 17 December 1947.
Across 160 earlier years (1793 to 2025) the same calendar date averaged 464 records.

Record Map

258 stations

258 station records on 17 December 1947 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 December 1947: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kumsi	India	Record daily precipitation	107.2 mm (4.2 in)	67 of 100 (Major)
Vayittiri	India	Record daily precipitation	109.7 mm (4.3 in)	67 of 100 (Major)
Joao Pessoa	Brazil	Record daily precipitation	67.9 mm (2.7 in)	61 of 100 (Major)
Turuvekere	India	Record daily precipitation	63.5 mm (2.5 in)	59 of 100 (Notable)
Hosdurg	India	Record daily precipitation	168.4 mm (6.6 in)	57 of 100 (Notable)
Surada	India	Record daily precipitation	43.2 mm (1.7 in)	57 of 100 (Notable)
Bobbili	India	Record daily precipitation	64.8 mm (2.6 in)	52 of 100 (Notable)
Touros	Brazil	Record daily precipitation	35.4 mm (1.4 in)	51 of 100 (Notable)
Cherapalaseri	India	Record daily precipitation	68.6 mm (2.7 in)	51 of 100 (Notable)
Nanaimo	Canada	Record daily precipitation	55.1 mm (2.2 in)	50 of 100 (Notable)
Khurda	India	Record daily precipitation	30.5 mm (1.2 in)	47 of 100 (Notable)
Rajahmundry	India	Record daily precipitation	29.2 mm (1.1 in)	46 of 100 (Notable)
Hilo 86A	United States	Record daily precipitation	189.7 mm (7.5 in)	46 of 100 (Notable)
Farukhnagar	India	Record daily precipitation	32.8 mm (1.3 in)	42 of 100 (Notable)
Yellowin	Australia	Record daily precipitation	48.8 mm (1.9 in)	41 of 100 (Notable)
Haileybury	Canada	Record daily snowfall	15.2 cm (6.0 in)	41 of 100 (Notable)
Badagara	India	Record daily precipitation	31.2 mm (1.2 in)	40 of 100 (Notable)
Itchapuram	India	Record daily precipitation	46.7 mm (1.8 in)	39 of 100 (Notable)
Hillgrove (Hillview)	Australia	Record daily precipitation	52.6 mm (2.1 in)	37 of 100 (Notable)
Haveri	India	Record daily precipitation	38.6 mm (1.5 in)	36 of 100 (Notable)
Barrage Temiscamingue	Canada	Record daily snowfall	20.3 cm (8.0 in)	32 of 100 (Routine)
Simferopol	Ukraine	Record daily precipitation	27.4 mm (1.1 in)	31 of 100 (Routine)
Belthangady	India	Record daily precipitation	45.5 mm (1.8 in)	30 of 100 (Routine)
Karkal	India	Record daily precipitation	36.3 mm (1.4 in)	30 of 100 (Routine)
Lost River	Canada	Record daily snowfall	9.7 cm (3.8 in)	29 of 100 (Routine)
Esquimalt	Canada	Record daily precipitation	38.1 mm (1.5 in)	28 of 100 (Routine)
Lindsay	Canada	Record daily snowfall	17.8 cm (7.0 in)	28 of 100 (Routine)
Henichesk	Ukraine	Record daily precipitation	33.1 mm (1.3 in)	28 of 100 (Routine)
Ranebennur	India	Record daily precipitation	61.0 mm (2.4 in)	27 of 100 (Routine)
Muvattupuzha	India	Record daily precipitation	50.8 mm (2.0 in)	27 of 100 (Routine)
Porthill	United States	Record daily snowfall	20.3 cm (8.0 in)	27 of 100 (Routine)
Framingham	United States	Record high maximum temperature	15.0 C (59.0 F)	27 of 100 (Routine)
Guelph Oac	Canada	Record daily snowfall	5.8 cm (2.3 in)	26 of 100 (Routine)
Saltspring Island	Canada	Record daily precipitation	52.1 mm (2.1 in)	25 of 100 (Routine)
Nanaimo Departure Bay	Canada	Record daily precipitation	39.9 mm (1.6 in)	25 of 100 (Routine)
Ottapalam	India	Record daily precipitation	47.8 mm (1.9 in)	25 of 100 (Routine)
Brookings 2 NE	United States	Record snow depth	25.4 cm (10.0 in)	25 of 100 (Routine)
Riverview Observatory	Australia	Record daily precipitation	32.0 mm (1.3 in)	23 of 100 (Routine)
Launceston (Pumping Station)	Australia	Record high minimum temperature	20.0 C (68.0 F)	22 of 100 (Routine)
Huntsville	Canada	Record daily snowfall	12.7 cm (5.0 in)	22 of 100 (Routine)
Sringeri	India	Record daily precipitation	29.2 mm (1.1 in)	22 of 100 (Routine)
Vashon Island	United States	Record high minimum temperature	8.9 C (48.0 F)	22 of 100 (Routine)
Mangalore	India	Record daily precipitation	29.5 mm (1.2 in)	21 of 100 (Routine)
Haileybury	Canada	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Hosanagar	India	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Irapuato	Mexico	Record daily precipitation	23.1 mm (0.9 in)	20 of 100 (Routine)
Gajapathinagaram	India	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Thirthahalli	India	Record daily precipitation	21.3 mm (0.8 in)	20 of 100 (Routine)
Tanuku	India	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Ram/Udayagiri	India	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Gumma	India	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)
Narsipatnam	India	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Woomera (Arcoona)	Australia	Record daily precipitation	2.3 mm (0.09 in)	20 of 100 (Routine)
Lost River	Canada	Record daily precipitation	9.7 mm (0.38 in)	20 of 100 (Routine)
Timbauba	Brazil	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Kothapeta	India	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Salur	India	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Vidisha	India	Record daily precipitation	8.9 mm (0.35 in)	20 of 100 (Routine)
Gothenburg	United States	Record snow depth	5.1 cm (2.0 in)	20 of 100 (Routine)
Gosford (Gertrude Place)	Australia	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)

Counts by Type and Timescale

258 records

Records set or tied on 17 December 1947 by type: Highest daily maximum 15, Lowest daily maximum 4, Highest daily minimum 21, Lowest daily minimum 13, Heaviest daily rainfall 167, Heaviest daily snowfall 26, Deepest snow cover 12.

Records on 17 December 1947 by type
Record type	Records
Highest daily maximum	15
Lowest daily maximum	4
Highest daily minimum	21
Lowest daily minimum	13
Heaviest daily rainfall	167
Heaviest daily snowfall	26
Deepest snow cover	12

Records on 17 December 1947 by timescale: all-time 0, monthly 8, daily 250.

How Much Records Were Beaten By

225 broken records

Margins by which the 225 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 166.1. Ties are not counted.

Top 20 by Significance

17 December 1947

Top 20 records on 17 December 1947 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 December 1947	Kumsi, IN	monthly rain	107.2 mm (4.2 in)	60.2 mm (2.4 in)	45 years	67 of 100 (Major)
17 December 1947	Vayittiri, IN	monthly rain	109.7 mm (4.3 in)	50.5 mm (2.0 in)	45 years	67 of 100 (Major)
17 December 1947	Joao Pessoa, BR	monthly rain	67.9 mm (2.7 in)	23.4 mm (0.9 in)	26 years	61 of 100 (Major)
17 December 1947	Turuvekere, IN	monthly rain	63.5 mm (2.5 in)	30.0 mm (1.2 in)	22 years	59 of 100 (Notable)
17 December 1947	Hosdurg, IN	daily rain	168.4 mm (6.6 in)	166.1 mm (6.5 in)	44 years	57 of 100 (Notable)
17 December 1947	Surada, IN	daily rain	43.2 mm (1.7 in)	43.2 mm (1.7 in)	45 years	57 of 100 (Notable)
17 December 1947	Bobbili, IN	daily rain	64.8 mm (2.6 in)	63.8 mm (2.5 in)	28 years	52 of 100 (Notable)
17 December 1947	Touros, BR	daily rain	35.4 mm (1.4 in)	26.4 mm (1.0 in)	28 years	51 of 100 (Notable)
17 December 1947	Cherapalaseri, IN	daily rain	68.6 mm (2.7 in)	67.1 mm (2.6 in)	44 years	51 of 100 (Notable)
17 December 1947	Nanaimo, CA	daily rain	55.1 mm (2.2 in)	33.8 mm (1.3 in)	28 years	50 of 100 (Notable)
17 December 1947	Khurda, IN	daily rain	30.5 mm (1.2 in)	30.5 mm (1.2 in)	45 years	47 of 100 (Notable)
17 December 1947	Rajahmundry, IN	daily rain	29.2 mm (1.1 in)	29.2 mm (1.1 in)	45 years	46 of 100 (Notable)
17 December 1947	Hilo 86A, US	daily rain	189.7 mm (7.5 in)	99.8 mm (3.9 in)	24 years	46 of 100 (Notable)
17 December 1947	Farukhnagar, IN	daily rain	32.8 mm (1.3 in)	26.7 mm (1.1 in)	42 years	42 of 100 (Notable)
17 December 1947	Yellowin, AU	daily rain	48.8 mm (1.9 in)	32.3 mm (1.3 in)	26 years	41 of 100 (Notable)
17 December 1947	Haileybury, CA	daily snowfall	15.2 cm (6.0 in)	9.6 cm (3.8 in)	36 years	41 of 100 (Notable)
17 December 1947	Badagara, IN	daily rain	31.2 mm (1.2 in)	26.4 mm (1.0 in)	44 years	40 of 100 (Notable)
17 December 1947	Itchapuram, IN	daily rain	46.7 mm (1.8 in)	46.7 mm (1.8 in)	45 years	39 of 100 (Notable)
17 December 1947	Hillgrove (Hillview), AU	daily rain	52.6 mm (2.1 in)	25.9 mm (1.0 in)	42 years	37 of 100 (Notable)
17 December 1947	Haveri, IN	daily rain	38.6 mm (1.5 in)	35.8 mm (1.4 in)	44 years	36 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

1793 to 1947

Records set or tied on this calendar date in each year from 1793 to 1947. 1947 had 258 records.

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

Records on 12-17 in each year
Year	Records
1793	2
1796	1
1806	2
1808	2
1814	1
1815	1
1839	1
1845	1
1846	4
1847	1
1848	1
1859	3
1866	1
1867	1
1868	1
1869	2
1873	2
1876	3
1877	2
1878	1
1879	2
1881	2
1885	1
1886	1
1888	2
1889	2
1890	4
1892	4
1893	2
1894	4
1895	3
1896	4
1897	4
1898	2
1899	1
1900	6
1901	5
1902	47
1903	2
1904	14
1905	2
1906	17
1907	9
1908	13
1909	5
1910	37
1911	12
1912	15
1913	21
1914	17
1915	31
1916	21
1917	21
1918	21
1919	109
1920	97
1921	94
1922	120
1923	170
1924	505
1925	79
1926	172
1927	143
1928	359
1929	221
1930	362
1931	217
1932	684
1933	710
1934	200
1935	87
1936	504
1937	379
1938	118
1939	1,126
1940	248
1941	261
1942	507
1943	444
1944	189
1945	621
1946	207
1947	258
1948	316
1949	296
1950	294
1951	773
1952	277
1953	283
1954	409
1955	419
1956	448
1957	686
1958	540
1959	548
1960	492
1961	911
1962	676
1963	531
1964	1,239
1965	482
1966	516
1967	1,121
1968	338
1969	238
1970	820
1971	781
1972	601
1973	1,016
1974	390
1975	474
1976	507
1977	1,024
1978	710
1979	951
1980	1,116
1981	1,354
1982	569
1983	1,264
1984	1,618
1985	1,210
1986	743
1987	1,191
1988	481
1989	2,905
1990	866
1991	577
1992	1,461
1993	761
1994	685
1995	956
1996	1,212
1997	1,279
1998	695
1999	901
2000	1,566
2001	1,262
2002	858
2003	751
2004	554
2005	806
2006	1,307
2007	1,100
2008	1,354
2009	926
2010	1,405
2011	430
2012	942
2013	718
2014	370
2015	1,378
2016	1,521
2017	408
2018	498
2019	917
2020	768
2021	908
2022	595
2023	931
2024	560
2025	1,198

Download the Data

Data for records on 1947-12-17: 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 25	174
25 to 50	35
50 to 75	10
75 to 100	3
100 to 125	1
125 to 150	1
150 to 175	1