Weather Records on 17 December 1945

621 weather records were set or tied worldwide on 17 December 1945. Highest significance: Arnsberg, DE.

Key Facts for 17 December 1945

On 17 December 1945, 621 weather records were set or tied at long-record stations worldwide.
16 were record highs and 384 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 7 monthly and 614 daily.
Arnsberg set a daily record snow depth of 24.0 cm (9.4 in) on 17 December 1945.
Across 160 earlier years (1793 to 2025) the same calendar date averaged 462 records.

Record Map

621 stations

621 station records on 17 December 1945 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 December 1945: highest significance records shown on the map
Station	Country	Type	Value	Significance
Arnsberg	Germany	Record snow depth	24.0 cm (9.4 in)	42 of 100 (Notable)
East Anaconda	United States	Record daily snowfall	14.0 cm (5.5 in)	42 of 100 (Notable)
Conway	United States	Record daily snowfall	9.7 cm (3.8 in)	40 of 100 (Notable)
Border 3 N	United States	Record daily snowfall	15.2 cm (6.0 in)	39 of 100 (Notable)
Penola (Comaum Park)	Australia	Record daily precipitation	30.0 mm (1.2 in)	38 of 100 (Notable)
Perundurai	India	Record daily precipitation	35.1 mm (1.4 in)	38 of 100 (Notable)
Coldwater	Canada	Record daily snowfall	40.6 cm (16.0 in)	35 of 100 (Notable)
Crete 4ESE	United States	Record daily snowfall	8.9 cm (3.5 in)	34 of 100 (Routine)
Echo	United States	Record daily snowfall	15.2 cm (6.0 in)	33 of 100 (Routine)
Wausau Record Herald	United States	Record low maximum temperature	-16.7 C (1.9 F)	33 of 100 (Routine)
Lawn Hill	Australia	Record daily precipitation	27.4 mm (1.1 in)	32 of 100 (Routine)
Coldwater	Canada	Record daily precipitation	40.6 mm (1.6 in)	32 of 100 (Routine)
Iffley Station	Australia	Record daily precipitation	98.0 mm (3.9 in)	30 of 100 (Routine)
Simcoe	Canada	Record low maximum temperature	-8.9 C (16.0 F)	30 of 100 (Routine)
Namdalseid	Norway	Record snow depth	67.0 cm (26.4 in)	30 of 100 (Routine)
Lodgepole	United States	Record daily snowfall	12.7 cm (5.0 in)	30 of 100 (Routine)
Lowville	United States	Record daily snowfall	19.1 cm (7.5 in)	28 of 100 (Routine)
Lien I Selbu	Norway	Record snow depth	80.0 cm (31.5 in)	27 of 100 (Routine)
Independence	United States	Record daily snowfall	7.6 cm (3.0 in)	27 of 100 (Routine)
Stamford Station	Australia	Record daily precipitation	34.3 mm (1.4 in)	26 of 100 (Routine)
Rockford	United States	Record low maximum temperature	-16.7 C (1.9 F)	26 of 100 (Routine)
Oak Park Station	Australia	Record daily precipitation	26.7 mm (1.1 in)	25 of 100 (Routine)
Iola	United States	Record snow depth	12.7 cm (5.0 in)	25 of 100 (Routine)
Ann Arbor U of Mich	United States	Record low maximum temperature	-13.3 C (8.1 F)	25 of 100 (Routine)
Langhorne Creek	Australia	Record daily precipitation	32.8 mm (1.3 in)	24 of 100 (Routine)
Lochnagar	Australia	Record daily precipitation	48.3 mm (1.9 in)	24 of 100 (Routine)
Emmett 2 E	United States	Record daily snowfall	16.5 cm (6.5 in)	24 of 100 (Routine)
Trenton 2	United States	Record low maximum temperature	-5.0 C (23.0 F)	24 of 100 (Routine)
Hermiston 1 SE	United States	Record daily snowfall	7.6 cm (3.0 in)	24 of 100 (Routine)
Port Vincent	Australia	Record daily precipitation	28.4 mm (1.1 in)	23 of 100 (Routine)
Cherry Gardens	Australia	Record daily precipitation	26.7 mm (1.1 in)	23 of 100 (Routine)
Winton Post Office	Australia	Record daily precipitation	41.4 mm (1.6 in)	23 of 100 (Routine)
Emerson	Canada	Record low maximum temperature	-17.8 C (0.0 F)	23 of 100 (Routine)
Payette	United States	Record daily snowfall	8.1 cm (3.2 in)	23 of 100 (Routine)
Walnut	United States	Record low maximum temperature	-13.3 C (8.1 F)	23 of 100 (Routine)
Oskaloosa	United States	Record low maximum temperature	-15.0 C (5.0 F)	23 of 100 (Routine)
Red Lodge	United States	Record snow depth	43.2 cm (17.0 in)	23 of 100 (Routine)
Williston Sloulin Fld	United States	Record snow depth	15.2 cm (6.0 in)	23 of 100 (Routine)
Miranda Downs Station	Australia	Record daily precipitation	49.8 mm (2.0 in)	22 of 100 (Routine)
Elmira	United States	Record low maximum temperature	-10.0 C (14.0 F)	22 of 100 (Routine)
Ashland	United States	Record low maximum temperature	-12.8 C (9.0 F)	22 of 100 (Routine)
Defiance	United States	Record low minimum temperature	-21.7 C (-7.1 F)	22 of 100 (Routine)
Brookings 2 NE	United States	Record snow depth	12.7 cm (5.0 in)	22 of 100 (Routine)
Lake Mills Wwtp	United States	Record low minimum temperature	-26.7 C (-16.1 F)	22 of 100 (Routine)
Butte Bert Mooney AP	United States	Record daily snowfall	8.1 cm (3.2 in)	22 of 100 (Routine)
Ngukurr	Australia	Record daily precipitation	60.5 mm (2.4 in)	21 of 100 (Routine)
Langhorne Creek 2	Australia	Record daily precipitation	30.7 mm (1.2 in)	21 of 100 (Routine)
Bool Lagoon	Australia	Record daily precipitation	27.9 mm (1.1 in)	21 of 100 (Routine)
Penola Post Office	Australia	Record daily precipitation	28.2 mm (1.1 in)	21 of 100 (Routine)
Ayrshire Downs	Australia	Record daily precipitation	26.4 mm (1.0 in)	21 of 100 (Routine)
Kindersley	Canada	Record low minimum temperature	-32.8 C (-27.0 F)	21 of 100 (Routine)
Tartu	Estonia	Record low minimum temperature	-19.4 C (-2.9 F)	21 of 100 (Routine)
Bjornholt	Norway	Record daily precipitation	30.9 mm (1.2 in)	21 of 100 (Routine)
Cet Central England	United Kingdom	Record high minimum temperature	9.2 C (48.6 F)	21 of 100 (Routine)
Greenfield	United States	Record low maximum temperature	-12.8 C (9.0 F)	21 of 100 (Routine)
Grundy Ctr	United States	Record low maximum temperature	-15.0 C (5.0 F)	21 of 100 (Routine)
Hampton	United States	Record low maximum temperature	-15.0 C (5.0 F)	21 of 100 (Routine)
Waverly	United States	Record low maximum temperature	-16.7 C (1.9 F)	21 of 100 (Routine)
Mackinaw City 2	United States	Record daily snowfall	8.9 cm (3.5 in)	21 of 100 (Routine)
St Ignace	United States	Record low maximum temperature	-7.2 C (19.0 F)	21 of 100 (Routine)

Counts by Type and Timescale

621 records

Records set or tied on 17 December 1945 by type: Highest daily maximum 6, Lowest daily maximum 227, Highest daily minimum 10, Lowest daily minimum 157, Heaviest daily rainfall 131, Heaviest daily snowfall 58, Deepest snow cover 32.

Records on 17 December 1945 by type
Record type	Records
Highest daily maximum	6
Lowest daily maximum	227
Highest daily minimum	10
Lowest daily minimum	157
Heaviest daily rainfall	131
Heaviest daily snowfall	58
Deepest snow cover	32

Records on 17 December 1945 by timescale: all-time 0, monthly 7, daily 614.

How Much Records Were Beaten By

443 broken records

Margins by which the 443 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 210.0. Ties are not counted.

Top 20 by Significance

17 December 1945

Top 20 records on 17 December 1945 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 December 1945	Arnsberg, DE	daily snow depth	24.0 cm (9.4 in)	15.0 cm (5.9 in)	18 years	42 of 100 (Notable)
17 December 1945	East Anaconda, US	daily snowfall	14.0 cm (5.5 in)	11.5 cm (4.5 in)	32 years	42 of 100 (Notable)
17 December 1945	Conway, US	daily snowfall	9.7 cm (3.8 in)	9.7 cm (3.8 in)	52 years	40 of 100 (Notable)
17 December 1945	Border 3 N, US	daily snowfall	15.2 cm (6.0 in)	11.4 cm (4.5 in)	30 years	39 of 100 (Notable)
17 December 1945	Penola (Comaum Park), AU	daily rain	30.0 mm (1.2 in)	18.1 mm (0.7 in)	19 years	38 of 100 (Notable)
17 December 1945	Perundurai, IN	daily rain	35.1 mm (1.4 in)	28.7 mm (1.1 in)	38 years	38 of 100 (Notable)
17 December 1945	Coldwater, CA	daily snowfall	40.6 cm (16.0 in)	16.7 cm (6.6 in)	4 years	35 of 100 (Notable)
17 December 1945	Crete 4ESE, US	daily snowfall	8.9 cm (3.5 in)	6.4 cm (2.5 in)	48 years	34 of 100 (Routine)
17 December 1945	Echo, US	daily snowfall	15.2 cm (6.0 in)	10.1 cm (4.0 in)	32 years	33 of 100 (Routine)
17 December 1945	Wausau Record Herald, US	daily low max	-16.7 C (1.9 F)	8.9 C (16.0 F)	42 years	33 of 100 (Routine)
17 December 1945	Lawn Hill, AU	daily rain	27.4 mm (1.1 in)	18.8 mm (0.7 in)	55 years	32 of 100 (Routine)
17 December 1945	Coldwater, CA	daily rain	40.6 mm (1.6 in)	16.7 mm (0.7 in)	4 years	32 of 100 (Routine)
17 December 1945	Iffley Station, AU	daily rain	98.0 mm (3.9 in)	48.0 mm (1.9 in)	2 years	30 of 100 (Routine)
17 December 1945	Simcoe, CA	daily low max	-8.9 C (16.0 F)	2.2 C (4.0 F)	60 years	30 of 100 (Routine)
17 December 1945	Namdalseid, NO	monthly snow depth	67.0 cm (26.4 in)	2.0 cm (0.8 in)	46 years	30 of 100 (Routine)
17 December 1945	Lodgepole, US	daily snowfall	12.7 cm (5.0 in)	7.6 cm (3.0 in)	38 years	30 of 100 (Routine)
17 December 1945	Lowville, US	daily snowfall	19.1 cm (7.5 in)	8.9 cm (3.5 in)	43 years	28 of 100 (Routine)
17 December 1945	Lien I Selbu, NO	daily snow depth	80.0 cm (31.5 in)	21.0 cm (8.3 in)	30 years	27 of 100 (Routine)
17 December 1945	Independence, US	daily snowfall	7.6 cm (3.0 in)	5.1 cm (2.0 in)	38 years	27 of 100 (Routine)
17 December 1945	Stamford Station, AU	daily rain	34.3 mm (1.4 in)	24.1 mm (0.9 in)	38 years	26 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 1945

Records set or tied on this calendar date in each year from 1793 to 1945. 1945 had 621 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 1945-12-17: 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 50	421
50 to 100	14
100 to 150	5
150 to 200	2
200 to 250	1