Weather Records on 17 December 2017

408 weather records were set or tied worldwide on 17 December 2017. Highest significance: Changchun, CN.

Key Facts for 17 December 2017

On 17 December 2017, 408 weather records were set or tied at long-record stations worldwide.
152 were record highs and 40 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 6 monthly and 402 daily.
Changchun set a daily record precipitation of 39.9 mm (1.6 in) on 17 December 2017.
Across 160 earlier years (1793 to 2025) the same calendar date averaged 463 records.

Record Map

408 stations

408 station records on 17 December 2017 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 December 2017: highest significance records shown on the map
Station	Country	Type	Value	Significance
Changchun	China	Record daily precipitation	39.9 mm (1.6 in)	59 of 100 (Notable)
Katherine Aviation Museum	Australia	Record daily precipitation	80.6 mm (3.2 in)	52 of 100 (Notable)
Tubuai	French Polynesia	Record daily precipitation	124.7 mm (4.9 in)	52 of 100 (Notable)
Rosalia	United States	Record daily snowfall	22.9 cm (9.0 in)	52 of 100 (Notable)
Jokkmokk	Sweden	Record snow depth	88.0 cm (34.6 in)	48 of 100 (Notable)
Chapman	United States	Record high minimum temperature	4.4 C (39.9 F)	44 of 100 (Notable)
Hawkins	United States	Record daily precipitation	47.2 mm (1.9 in)	41 of 100 (Notable)
Smithville	United States	Record daily precipitation	45.7 mm (1.8 in)	40 of 100 (Notable)
Narrogin	Australia	Record low maximum temperature	19.5 C (67.1 F)	39 of 100 (Notable)
Deer Lodge 3 W	United States	Record daily snowfall	8.9 cm (3.5 in)	39 of 100 (Notable)
Longview	United States	Record daily precipitation	51.1 mm (2.0 in)	39 of 100 (Notable)
Tyler	United States	Record daily precipitation	81.3 mm (3.2 in)	38 of 100 (Notable)
Pontiac Wwtp	United States	Record snow depth	22.9 cm (9.0 in)	37 of 100 (Notable)
San Marcos	United States	Record daily precipitation	31.8 mm (1.3 in)	37 of 100 (Notable)
Waipahu 750	United States	Record daily precipitation	66.0 mm (2.6 in)	37 of 100 (Notable)
Lubny	Ukraine	Record high maximum temperature	10.6 C (51.1 F)	34 of 100 (Routine)
Granger Dam	United States	Record daily precipitation	39.6 mm (1.6 in)	33 of 100 (Routine)
Athens	United States	Record daily precipitation	46.5 mm (1.8 in)	32 of 100 (Routine)
Mt Clemens Ang Base	United States	Record snow depth	22.9 cm (9.0 in)	32 of 100 (Routine)
Abilene	United States	Record high minimum temperature	5.6 C (42.1 F)	31 of 100 (Routine)
Greybull	United States	Record daily snowfall	6.4 cm (2.5 in)	31 of 100 (Routine)
Keithville	United States	Record daily precipitation	39.9 mm (1.6 in)	30 of 100 (Routine)
Cdu Katherine Rural Campus	Australia	Record daily precipitation	70.2 mm (2.8 in)	29 of 100 (Routine)
Saran-Paul	Russia	Record high minimum temperature	-6.4 C (20.5 F)	29 of 100 (Routine)
Pulaski	United States	Record snow depth	40.6 cm (16.0 in)	29 of 100 (Routine)
Ben Gurion	Israel	Record high maximum temperature	25.5 C (77.9 F)	28 of 100 (Routine)
Bouake	Cote D'Ivoire	Record high minimum temperature	24.6 C (76.3 F)	28 of 100 (Routine)
Fascene	Madagascar	Record high minimum temperature	26.8 C (80.2 F)	28 of 100 (Routine)
Simferopol	Ukraine	Record high minimum temperature	10.9 C (51.6 F)	28 of 100 (Routine)
Newman	United States	Record high maximum temperature	21.1 C (70.0 F)	28 of 100 (Routine)
Centerville	United States	Record daily precipitation	33.5 mm (1.3 in)	28 of 100 (Routine)
Bohicon	Benin	Record high minimum temperature	26.5 C (79.7 F)	27 of 100 (Routine)
Herington	United States	Record high minimum temperature	4.4 C (39.9 F)	27 of 100 (Routine)
Atlanta	United States	Record daily precipitation	40.1 mm (1.6 in)	27 of 100 (Routine)
Georgetown Lake	United States	Record daily precipitation	32.0 mm (1.3 in)	27 of 100 (Routine)
Jarrell	United States	Record daily precipitation	33.8 mm (1.3 in)	27 of 100 (Routine)
McCarran Intl AP	United States	Record high minimum temperature	8.3 C (46.9 F)	27 of 100 (Routine)
Douglas River	Australia	Record daily precipitation	40.0 mm (1.6 in)	26 of 100 (Routine)
Oodnadatta Airport	Australia	Record high maximum temperature	45.8 C (114.4 F)	26 of 100 (Routine)
Sinop	Turkey	Record high minimum temperature	13.5 C (56.3 F)	26 of 100 (Routine)
Ponca City Muni AP	United States	Record high minimum temperature	6.7 C (44.1 F)	26 of 100 (Routine)
Ceres Aero	Argentina	Record high maximum temperature	42.2 C (108.0 F)	25 of 100 (Routine)
Bencubbin	Australia	Record low maximum temperature	22.7 C (72.9 F)	25 of 100 (Routine)
Braidwood (Krawarree)	Australia	Record daily precipitation	36.8 mm (1.4 in)	25 of 100 (Routine)
Brjansk	Russia	Record high maximum temperature	8.7 C (47.7 F)	25 of 100 (Routine)
Trubcevsk	Russia	Record high maximum temperature	9.7 C (49.5 F)	25 of 100 (Routine)
Gotnja	Russia	Record high minimum temperature	2.7 C (36.9 F)	25 of 100 (Routine)
Kotel'nikovo	Russia	Record high minimum temperature	3.5 C (38.3 F)	25 of 100 (Routine)
Bulverde	United States	Record daily precipitation	31.8 mm (1.3 in)	25 of 100 (Routine)
Langtry	United States	Record low maximum temperature	8.9 C (48.0 F)	25 of 100 (Routine)
Shoshoni	United States	Record daily snowfall	5.8 cm (2.3 in)	25 of 100 (Routine)
Squaw Lake California	United States	Record high minimum temperature	18.3 C (64.9 F)	25 of 100 (Routine)
Manjimup	Australia	Record low maximum temperature	17.2 C (63.0 F)	24 of 100 (Routine)
Sibiti	Congo (Brazzaville)	Record high minimum temperature	22.0 C (71.6 F)	24 of 100 (Routine)
Rylsk	Russia	Record high maximum temperature	9.7 C (49.5 F)	24 of 100 (Routine)
Inga	Russia	Record high minimum temperature	-10.6 C (12.9 F)	24 of 100 (Routine)
Kursk	Russia	Record high maximum temperature	8.3 C (46.9 F)	24 of 100 (Routine)
Cunnamulla Post Office	Australia	Record high minimum temperature	28.0 C (82.4 F)	23 of 100 (Routine)
Coronel Carlos Ciriani Santa	Peru	Record low minimum temperature	11.6 C (52.9 F)	23 of 100 (Routine)
Krasnaja_Gora	Russia	Record high maximum temperature	7.3 C (45.1 F)	23 of 100 (Routine)

Counts by Type and Timescale

408 records

Records set or tied on 17 December 2017 by type: Highest daily maximum 70, Lowest daily maximum 26, Highest daily minimum 82, Lowest daily minimum 14, Heaviest daily rainfall 188, Heaviest daily snowfall 14, Deepest snow cover 14.

Records on 17 December 2017 by type
Record type	Records
Highest daily maximum	70
Lowest daily maximum	26
Highest daily minimum	82
Lowest daily minimum	14
Heaviest daily rainfall	188
Heaviest daily snowfall	14
Deepest snow cover	14

Records on 17 December 2017 by timescale: all-time 0, monthly 6, daily 402.

How Much Records Were Beaten By

363 broken records

Margins by which the 363 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 140.0. Ties are not counted.

Top 20 by Significance

17 December 2017

Top 20 records on 17 December 2017 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 December 2017	Changchun, CN	daily rain	39.9 mm (1.6 in)	34.8 mm (1.4 in)	60 years	59 of 100 (Notable)
17 December 2017	Katherine Aviation Museum, AU	daily rain	80.6 mm (3.2 in)	48.1 mm (1.9 in)	74 years	52 of 100 (Notable)
17 December 2017	Tubuai, PF	daily rain	124.7 mm (4.9 in)	86.6 mm (3.4 in)	28 years	52 of 100 (Notable)
17 December 2017	Rosalia, US	daily snowfall	22.9 cm (9.0 in)	12.7 cm (5.0 in)	24 years	52 of 100 (Notable)
17 December 2017	Jokkmokk, SE	daily snow depth	88.0 cm (34.6 in)	14.0 cm (5.5 in)	104 years	48 of 100 (Notable)
17 December 2017	Chapman, US	daily high min	4.4 C (39.9 F)	2.7 C (4.9 F)	108 years	44 of 100 (Notable)
17 December 2017	Hawkins, US	daily rain	47.2 mm (1.9 in)	27.9 mm (1.1 in)	60 years	41 of 100 (Notable)
17 December 2017	Smithville, US	daily rain	45.7 mm (1.8 in)	8.4 mm (0.33 in)	83 years	40 of 100 (Notable)
17 December 2017	Narrogin, AU	daily low max	19.5 C (67.1 F)	0.6 C (1.1 F)	95 years	39 of 100 (Notable)
17 December 2017	Deer Lodge 3 W, US	daily snowfall	8.9 cm (3.5 in)	5.6 cm (2.2 in)	50 years	39 of 100 (Notable)
17 December 2017	Longview, US	daily rain	51.1 mm (2.0 in)	9.2 mm (0.36 in)	80 years	39 of 100 (Notable)
17 December 2017	Tyler, US	daily rain	81.3 mm (3.2 in)	51.6 mm (2.0 in)	16 years	38 of 100 (Notable)
17 December 2017	Pontiac Wwtp, US	daily snow depth	22.9 cm (9.0 in)	2.6 cm (1.0 in)	80 years	37 of 100 (Notable)
17 December 2017	San Marcos, US	daily rain	31.8 mm (1.3 in)	6.4 mm (0.25 in)	83 years	37 of 100 (Notable)
17 December 2017	Waipahu 750, US	daily rain	66.0 mm (2.6 in)	18.0 mm (0.7 in)	66 years	37 of 100 (Notable)
17 December 2017	Lubny, UA	daily high max	10.6 C (51.1 F)	1.4 C (2.5 F)	80 years	34 of 100 (Routine)
17 December 2017	Granger Dam, US	daily rain	39.6 mm (1.6 in)	35.0 mm (1.4 in)	34 years	33 of 100 (Routine)
17 December 2017	Athens, US	daily rain	46.5 mm (1.8 in)	24.7 mm (1.0 in)	27 years	32 of 100 (Routine)
17 December 2017	Mt Clemens Ang Base, US	daily snow depth	22.9 cm (9.0 in)	2.6 cm (1.0 in)	66 years	32 of 100 (Routine)
17 December 2017	Abilene, US	daily high min	5.6 C (42.1 F)	2.3 C (4.1 F)	60 years	31 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 2017

Records set or tied on this calendar date in each year from 1793 to 2017. 2017 had 408 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 2017-12-17: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	343
20 to 40	11
40 to 60	4
60 to 80	1
80 to 100	1
100 to 120	0
120 to 140	3