Weather Records on 18 December 2015

1,254 weather records were set or tied worldwide on 18 December 2015. Highest significance: Melville 4 W, US.

Key Facts for 18 December 2015

On 18 December 2015, 1,254 weather records were set or tied at long-record stations worldwide.
888 were record highs and 38 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 47 monthly and 1,204 daily.
Melville 4 W set a daily record snow depth of 40.6 cm (16.0 in) on 18 December 2015.
Across 156 earlier years (1793 to 2025) the same calendar date averaged 475 records.

Record Map

1,254 stations

1,254 station records on 18 December 2015 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 December 2015: highest significance records shown on the map
Station	Country	Type	Value	Significance
Melville 4 W	United States	Record snow depth	40.6 cm (16.0 in)	61 of 100 (Major)
Chengde	China	Record daily precipitation	30.0 mm (1.2 in)	56 of 100 (Notable)
Port Orford 5 E	United States	Record daily precipitation	196.9 mm (7.8 in)	56 of 100 (Notable)
Bonneville Dam	United States	Record daily precipitation	88.6 mm (3.5 in)	55 of 100 (Notable)
Detroit Dam	United States	Record daily precipitation	120.9 mm (4.8 in)	53 of 100 (Notable)
Ucharonidge	Australia	Record daily precipitation	120.0 mm (4.7 in)	51 of 100 (Notable)
Kamiah	United States	Record daily snowfall	10.2 cm (4.0 in)	50 of 100 (Notable)
Vancouver 4 NNE	United States	Record daily precipitation	41.4 mm (1.6 in)	50 of 100 (Notable)
Powers	United States	Record daily precipitation	81.8 mm (3.2 in)	49 of 100 (Notable)
Raleigh State UNIV	United States	Record daily precipitation	34.3 mm (1.4 in)	48 of 100 (Notable)
Port Orford #2	United States	Record daily precipitation	116.8 mm (4.6 in)	48 of 100 (Notable)
Falls City 2 SSW	United States	Record daily precipitation	112.0 mm (4.4 in)	47 of 100 (Notable)
Payette	United States	Record daily snowfall	15.2 cm (6.0 in)	46 of 100 (Notable)
Dilley 2 S	United States	Record daily precipitation	51.3 mm (2.0 in)	45 of 100 (Notable)
Forest Grove	United States	Record daily precipitation	44.5 mm (1.8 in)	45 of 100 (Notable)
Tillamook	United States	Record daily precipitation	108.7 mm (4.3 in)	45 of 100 (Notable)
Grant 5 SE	United States	Record snow depth	20.3 cm (8.0 in)	44 of 100 (Notable)
Belknap Springs 8 N	United States	Record daily precipitation	79.0 mm (3.1 in)	44 of 100 (Notable)
Marion Forks Fish Hatchery	United States	Record daily precipitation	68.6 mm (2.7 in)	44 of 100 (Notable)
Silverton	United States	Record daily precipitation	55.9 mm (2.2 in)	44 of 100 (Notable)
Middleboro	United States	Record high maximum temperature	12.8 C (55.0 F)	43 of 100 (Notable)
Liepaja	Latvia	Record high minimum temperature	6.8 C (44.2 F)	42 of 100 (Notable)
Karlshamn	Sweden	Record high maximum temperature	10.9 C (51.6 F)	42 of 100 (Notable)
Lawrence	United States	Record high minimum temperature	6.1 C (43.0 F)	42 of 100 (Notable)
Bandon 2 NNE	United States	Record daily precipitation	61.0 mm (2.4 in)	42 of 100 (Notable)
Corvallis Water Bureau	United States	Record daily precipitation	80.3 mm (3.2 in)	42 of 100 (Notable)
Dublin Phoenix Park	Ireland	Record high maximum temperature	15.6 C (60.1 F)	41 of 100 (Notable)
Malin Head	Ireland	Record high maximum temperature	15.4 C (59.7 F)	41 of 100 (Notable)
Oxford	United Kingdom	Record high minimum temperature	10.8 C (51.4 F)	41 of 100 (Notable)
Stayton	United States	Record daily precipitation	58.9 mm (2.3 in)	41 of 100 (Notable)
Woodstock	United States	Record high minimum temperature	3.3 C (37.9 F)	41 of 100 (Notable)
Parnu	Estonia	Record high maximum temperature	8.0 C (46.4 F)	40 of 100 (Notable)
Stockholm	Sweden	Record high maximum temperature	9.7 C (49.5 F)	40 of 100 (Notable)
Armagh	United Kingdom	Record high minimum temperature	10.3 C (50.5 F)	40 of 100 (Notable)
Northdale	United States	Record daily snowfall	17.8 cm (7.0 in)	40 of 100 (Notable)
Labuan	Malaysia	Record daily precipitation	193.3 mm (7.6 in)	39 of 100 (Notable)
Lerwick	United Kingdom	Record high maximum temperature	12.5 C (54.5 F)	39 of 100 (Notable)
Haiwee	United States	Record low minimum temperature	-8.9 C (16.0 F)	39 of 100 (Notable)
Cascade Locks	United States	Record daily precipitation	75.7 mm (3.0 in)	39 of 100 (Notable)
Bethel AP	United States	Record daily snowfall	11.7 cm (4.6 in)	39 of 100 (Notable)
Gove Airport	Australia	Record daily precipitation	67.0 mm (2.6 in)	38 of 100 (Notable)
Natitingou	Benin	Record low minimum temperature	9.6 C (49.3 F)	38 of 100 (Notable)
Stavanger - Valand	Norway	Record high minimum temperature	9.3 C (48.7 F)	38 of 100 (Notable)
Durham	United Kingdom	Record high minimum temperature	10.6 C (51.1 F)	38 of 100 (Notable)
Crescent City	United States	Record high minimum temperature	21.1 C (70.0 F)	38 of 100 (Notable)
Hanover	United States	Record high minimum temperature	2.8 C (37.0 F)	38 of 100 (Notable)
Troutdale	United States	Record daily precipitation	40.6 mm (1.6 in)	38 of 100 (Notable)
Odessa	United States	Record daily snowfall	10.2 cm (4.0 in)	38 of 100 (Notable)
Halmstad	Sweden	Record high minimum temperature	7.5 C (45.5 F)	37 of 100 (Notable)
Boras	Sweden	Record high minimum temperature	7.6 C (45.7 F)	37 of 100 (Notable)
Newton Rigg	United Kingdom	Record high maximum temperature	14.2 C (57.6 F)	37 of 100 (Notable)
Bradford	United Kingdom	Record high maximum temperature	15.7 C (60.3 F)	37 of 100 (Notable)
Council	United States	Record daily precipitation	39.1 mm (1.5 in)	37 of 100 (Notable)
Glenwood	United States	Record high maximum temperature	26.7 C (80.1 F)	37 of 100 (Notable)
Siler City 2 N	United States	Record daily precipitation	30.5 mm (1.2 in)	37 of 100 (Notable)
Fern Ridge-Veneta	United States	Record daily precipitation	39.9 mm (1.6 in)	37 of 100 (Notable)
Wiluna	Australia	Record high minimum temperature	35.0 C (95.0 F)	36 of 100 (Notable)
Alcan Minesite	Australia	Record daily precipitation	72.0 mm (2.8 in)	36 of 100 (Notable)
Vilsandi	Estonia	Record high maximum temperature	8.5 C (47.3 F)	36 of 100 (Notable)
Ulricehamn	Sweden	Record high minimum temperature	6.3 C (43.3 F)	36 of 100 (Notable)

Counts by Type and Timescale

1,254 records

Records set or tied on 18 December 2015 by type: Highest daily maximum 440, Lowest daily maximum 16, Highest daily minimum 448, Lowest daily minimum 22, Heaviest daily rainfall 264, Heaviest daily snowfall 19, Deepest snow cover 45.

Records on 18 December 2015 by type
Record type	Records
Highest daily maximum	440
Lowest daily maximum	16
Highest daily minimum	448
Lowest daily minimum	22
Heaviest daily rainfall	264
Heaviest daily snowfall	19
Deepest snow cover	45

Records on 18 December 2015 by timescale: all-time 3, monthly 47, daily 1,204.

How Much Records Were Beaten By

1,096 broken records

Margins by which the 1,096 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 406.0. Ties are not counted.

Top 20 by Significance

18 December 2015

Top 20 records on 18 December 2015 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 December 2015	Melville 4 W, US	daily snow depth	40.6 cm (16.0 in)	40.6 cm (16.0 in)	54 years	61 of 100 (Major)
18 December 2015	Chengde, CN	daily rain	30.0 mm (1.2 in)	20.1 mm (0.8 in)	33 years	56 of 100 (Notable)
18 December 2015	Port Orford 5 E, US	daily rain	196.9 mm (7.8 in)	136.7 mm (5.4 in)	42 years	56 of 100 (Notable)
18 December 2015	Bonneville Dam, US	daily rain	88.6 mm (3.5 in)	49.2 mm (1.9 in)	64 years	55 of 100 (Notable)
18 December 2015	Detroit Dam, US	daily rain	120.9 mm (4.8 in)	85.3 mm (3.4 in)	24 years	53 of 100 (Notable)
18 December 2015	Ucharonidge, AU	monthly rain	120.0 mm (4.7 in)	45.0 mm (1.8 in)	14 years	51 of 100 (Notable)
18 December 2015	Kamiah, US	daily snowfall	10.2 cm (4.0 in)	5.1 cm (2.0 in)	100 years	50 of 100 (Notable)
18 December 2015	Vancouver 4 NNE, US	daily rain	41.4 mm (1.6 in)	11.2 mm (0.4 in)	97 years	50 of 100 (Notable)
18 December 2015	Powers, US	daily rain	81.8 mm (3.2 in)	45.0 mm (1.8 in)	54 years	49 of 100 (Notable)
18 December 2015	Raleigh State UNIV, US	daily rain	34.3 mm (1.4 in)	10.9 mm (0.4 in)	93 years	48 of 100 (Notable)
18 December 2015	Port Orford #2, US	daily rain	116.8 mm (4.6 in)	60.9 mm (2.4 in)	42 years	48 of 100 (Notable)
18 December 2015	Falls City 2 SSW, US	daily rain	112.0 mm (4.4 in)	25.6 mm (1.0 in)	81 years	47 of 100 (Notable)
18 December 2015	Payette, US	daily snowfall	15.2 cm (6.0 in)	5.0 cm (2.0 in)	85 years	46 of 100 (Notable)
18 December 2015	Dilley 2 S, US	daily rain	51.3 mm (2.0 in)	21.3 mm (0.8 in)	64 years	45 of 100 (Notable)
18 December 2015	Forest Grove, US	daily rain	44.5 mm (1.8 in)	7.9 mm (0.31 in)	97 years	45 of 100 (Notable)
18 December 2015	Tillamook, US	daily rain	108.7 mm (4.3 in)	39.6 mm (1.6 in)	54 years	45 of 100 (Notable)
18 December 2015	Grant 5 SE, US	daily snow depth	20.3 cm (8.0 in)	5.1 cm (2.0 in)	86 years	44 of 100 (Notable)
18 December 2015	Belknap Springs 8 N, US	daily rain	79.0 mm (3.1 in)	46.0 mm (1.8 in)	54 years	44 of 100 (Notable)
18 December 2015	Marion Forks Fish Hatchery, US	daily rain	68.6 mm (2.7 in)	38.6 mm (1.5 in)	57 years	44 of 100 (Notable)
18 December 2015	Silverton, US	daily rain	55.9 mm (2.2 in)	33.8 mm (1.3 in)	24 years	44 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 2015

Records set or tied on this calendar date in each year from 1793 to 2015. 2015 had 1,254 records.

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

Records on 12-18 in each year
Year	Records
1793	1
1796	1
1805	1
1814	1
1825	1
1846	1
1849	1
1852	2
1858	1
1859	4
1862	2
1864	1
1868	1
1873	1
1875	1
1876	2
1878	1
1881	2
1882	1
1884	2
1886	1
1887	1
1888	1
1889	4
1890	5
1892	4
1894	8
1895	1
1897	4
1898	9
1899	3
1900	2
1901	6
1902	33
1903	11
1904	25
1905	3
1906	21
1907	15
1908	16
1909	18
1910	19
1911	9
1912	33
1913	38
1914	20
1915	28
1916	57
1917	62
1918	21
1919	117
1920	77
1921	123
1922	108
1923	378
1924	480
1925	74
1926	173
1927	151
1928	165
1929	366
1930	230
1931	360
1932	353
1933	506
1934	209
1935	138
1936	466
1937	459
1938	185
1939	900
1940	242
1941	213
1942	281
1943	419
1944	191
1945	598
1946	199
1947	266
1948	354
1949	561
1950	289
1951	867
1952	450
1953	373
1954	507
1955	611
1956	333
1957	901
1958	524
1959	477
1960	477
1961	885
1962	759
1963	571
1964	840
1965	402
1966	644
1967	1,105
1968	488
1969	376
1970	502
1971	387
1972	375
1973	1,008
1974	229
1975	625
1976	459
1977	992
1978	946
1979	1,087
1980	772
1981	1,362
1982	537
1983	2,014
1984	1,439
1985	1,384
1986	875
1987	1,505
1988	1,061
1989	1,818
1990	1,367
1991	756
1992	1,045
1993	697
1994	643
1995	1,065
1996	1,833
1997	1,195
1998	863
1999	923
2000	1,572
2001	906
2002	1,437
2003	987
2004	506
2005	987
2006	1,167
2007	746
2008	1,014
2009	1,253
2010	1,322
2011	697
2012	729
2013	513
2014	556
2015	1,254
2016	1,821
2017	516
2018	464
2019	679
2020	326
2021	762
2022	536
2023	1,293
2024	780
2025	994

Download the Data

Data for records on 2015-12-18: 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 100	1,088
100 to 200	7
200 to 300	0
300 to 400	0
400 to 500	1