Weather Records on 15 December 2015

1,398 weather records were set or tied worldwide on 15 December 2015. Highest significance: Ironwood, US.

Key Facts for 15 December 2015

On 15 December 2015, 1,398 weather records were set or tied at long-record stations worldwide.
919 were record highs and 59 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 39 monthly and 1,359 daily.
Ironwood set a daily record precipitation of 38.4 mm (1.5 in) on 15 December 2015.
Across 168 earlier years (1793 to 2025) the same calendar date averaged 450 records.

Record Map

1,398 stations

1,398 station records on 15 December 2015 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 December 2015: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ironwood	United States	Record daily precipitation	38.4 mm (1.5 in)	76 of 100 (Major)
Yan An	China	Record daily precipitation	39.9 mm (1.6 in)	74 of 100 (Major)
Big Bay 1NW	United States	Record daily precipitation	48.5 mm (1.9 in)	71 of 100 (Major)
Minocqua	United States	Record daily precipitation	32.8 mm (1.3 in)	70 of 100 (Major)
Ft Hall 1 NNE	United States	Record daily snowfall	17.8 cm (7.0 in)	65 of 100 (Major)
Chippewa Falls	United States	Record daily precipitation	38.1 mm (1.5 in)	64 of 100 (Major)
Cody 12SE	United States	Record daily snowfall	15.2 cm (6.0 in)	62 of 100 (Major)
Rangely 1E	United States	Record daily snowfall	20.3 cm (8.0 in)	61 of 100 (Major)
Paonia 1SW	United States	Record daily snowfall	15.2 cm (6.0 in)	58 of 100 (Notable)
Farson 2NNE	United States	Record daily snowfall	10.2 cm (4.0 in)	58 of 100 (Notable)
Chengde	China	Record daily precipitation	30.0 mm (1.2 in)	57 of 100 (Notable)
Yinchuan	China	Record daily precipitation	39.9 mm (1.6 in)	56 of 100 (Notable)
Bergland Dam	United States	Record daily precipitation	38.4 mm (1.5 in)	55 of 100 (Notable)
Colstrip	United States	Record daily snowfall	12.7 cm (5.0 in)	55 of 100 (Notable)
Norris Madison Pwr House	United States	Record snow depth	30.5 cm (12.0 in)	54 of 100 (Notable)
Bryce Canyon Np Hqrs	United States	Record daily precipitation	50.8 mm (2.0 in)	54 of 100 (Notable)
Bridger 2 N	United States	Record daily snowfall	22.9 cm (9.0 in)	53 of 100 (Notable)
Moab	United States	Record daily snowfall	17.8 cm (7.0 in)	53 of 100 (Notable)
Marquette	United States	Record daily precipitation	36.6 mm (1.4 in)	53 of 100 (Notable)
Greeley Unc	United States	Record daily snowfall	26.7 cm (10.5 in)	52 of 100 (Notable)
Herman	United States	Record daily precipitation	32.3 mm (1.3 in)	51 of 100 (Notable)
Hastings Dam 2	United States	Record daily precipitation	34.0 mm (1.3 in)	51 of 100 (Notable)
Purdum	United States	Record daily snowfall	12.7 cm (5.0 in)	51 of 100 (Notable)
Cheyenne	United States	Record daily snowfall	17.8 cm (7.0 in)	51 of 100 (Notable)
Detour Village	United States	Record daily precipitation	35.8 mm (1.4 in)	50 of 100 (Notable)
Selinsgrove 2 S	United States	Record high minimum temperature	10.6 C (51.1 F)	50 of 100 (Notable)
Columbus	United States	Record daily snowfall	31.2 cm (12.3 in)	49 of 100 (Notable)
Wolf Canyon	United States	Record daily snowfall	35.6 cm (14.0 in)	49 of 100 (Notable)
W Chester 2 NW	United States	Record high minimum temperature	11.1 C (52.0 F)	49 of 100 (Notable)
Lexington	United States	Record high minimum temperature	13.9 C (57.0 F)	49 of 100 (Notable)
Leo 6 SW	United States	Record daily snowfall	25.4 cm (10.0 in)	49 of 100 (Notable)
Billings Wtp	United States	Record daily snowfall	17.8 cm (7.0 in)	48 of 100 (Notable)
Judith Gap	United States	Record daily snowfall	12.7 cm (5.0 in)	48 of 100 (Notable)
Freehold-Marlboro	United States	Record high minimum temperature	11.1 C (52.0 F)	48 of 100 (Notable)
Waverly	United States	Record high minimum temperature	8.9 C (48.0 F)	48 of 100 (Notable)
Charlevoix	United States	Record high maximum temperature	13.3 C (55.9 F)	47 of 100 (Notable)
Nye #2	United States	Record daily snowfall	33.0 cm (13.0 in)	47 of 100 (Notable)
Arthur 4NW	United States	Record daily snowfall	15.2 cm (6.0 in)	47 of 100 (Notable)
Hamburg	United States	Record high minimum temperature	11.1 C (52.0 F)	47 of 100 (Notable)
State College	United States	Record high minimum temperature	8.9 C (48.0 F)	47 of 100 (Notable)
Onida 4 NW	United States	Record daily snowfall	15.2 cm (6.0 in)	47 of 100 (Notable)
Woodstock 2 NE	United States	Record high minimum temperature	12.8 C (55.0 F)	47 of 100 (Notable)
Thermopolis	United States	Record snow depth	27.9 cm (11.0 in)	47 of 100 (Notable)
Reno Hill	United States	Record daily precipitation	30.5 mm (1.2 in)	47 of 100 (Notable)
Holter Dam	United States	Record daily snowfall	10.2 cm (4.0 in)	46 of 100 (Notable)
Boonton 1 SE	United States	Record high minimum temperature	8.9 C (48.0 F)	46 of 100 (Notable)
Hightstown 2 W	United States	Record high minimum temperature	11.1 C (52.0 F)	46 of 100 (Notable)
Addison	United States	Record high minimum temperature	7.2 C (45.0 F)	46 of 100 (Notable)
Elizabeth City	United States	Record high minimum temperature	16.1 C (61.0 F)	46 of 100 (Notable)
Northfield	United States	Record high minimum temperature	6.1 C (43.0 F)	46 of 100 (Notable)
Alberta Ford For Ctr	United States	Record daily precipitation	40.9 mm (1.6 in)	45 of 100 (Notable)
Avon	United States	Record high minimum temperature	6.1 C (43.0 F)	45 of 100 (Notable)
Elmira	United States	Record high minimum temperature	7.8 C (46.0 F)	45 of 100 (Notable)
Franklinville	United States	Record high minimum temperature	5.6 C (42.1 F)	45 of 100 (Notable)
Indian Lake 2SW	United States	Record high minimum temperature	6.1 C (43.0 F)	45 of 100 (Notable)
Mohonk Lake	United States	Record high minimum temperature	8.9 C (48.0 F)	45 of 100 (Notable)
Louisburg	United States	Record high minimum temperature	13.9 C (57.0 F)	45 of 100 (Notable)
Renovo	United States	Record high minimum temperature	7.8 C (46.0 F)	45 of 100 (Notable)
Woodstock	United States	Record high minimum temperature	6.7 C (44.1 F)	45 of 100 (Notable)
Newark Liberty Intl AP	United States	Record high minimum temperature	11.1 C (52.0 F)	45 of 100 (Notable)

Counts by Type and Timescale

1,398 records

Records set or tied on 15 December 2015 by type: Highest daily maximum 474, Lowest daily maximum 34, Highest daily minimum 445, Lowest daily minimum 25, Heaviest daily rainfall 246, Heaviest daily snowfall 128, Deepest snow cover 46.

Records on 15 December 2015 by type
Record type	Records
Highest daily maximum	474
Lowest daily maximum	34
Highest daily minimum	445
Lowest daily minimum	25
Heaviest daily rainfall	246
Heaviest daily snowfall	128
Deepest snow cover	46

Records on 15 December 2015 by timescale: all-time 0, monthly 39, daily 1,359.

How Much Records Were Beaten By

1,194 broken records

Margins by which the 1,194 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 254.0. Ties are not counted.

Top 20 by Significance

15 December 2015

Top 20 records on 15 December 2015 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 December 2015	Ironwood, US	daily rain	38.4 mm (1.5 in)	25.7 mm (1.0 in)	88 years	76 of 100 (Major)
15 December 2015	Yan An, CN	monthly rain	39.9 mm (1.6 in)	26.2 mm (1.0 in)	62 years	74 of 100 (Major)
15 December 2015	Big Bay 1NW, US	monthly rain	48.5 mm (1.9 in)	24.4 mm (1.0 in)	49 years	71 of 100 (Major)
15 December 2015	Minocqua, US	monthly rain	32.8 mm (1.3 in)	7.4 mm (0.29 in)	110 years	70 of 100 (Major)
15 December 2015	Ft Hall 1 NNE, US	daily snowfall	17.8 cm (7.0 in)	10.2 cm (4.0 in)	85 years	65 of 100 (Major)
15 December 2015	Chippewa Falls, US	monthly rain	38.1 mm (1.5 in)	8.4 mm (0.33 in)	108 years	64 of 100 (Major)
15 December 2015	Cody 12SE, US	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	65 years	62 of 100 (Major)
15 December 2015	Rangely 1E, US	daily snowfall	20.3 cm (8.0 in)	10.1 cm (4.0 in)	119 years	61 of 100 (Major)
15 December 2015	Paonia 1SW, US	daily snowfall	15.2 cm (6.0 in)	8.8 cm (3.5 in)	118 years	58 of 100 (Notable)
15 December 2015	Farson 2NNE, US	daily snowfall	10.2 cm (4.0 in)	6.4 cm (2.5 in)	100 years	58 of 100 (Notable)
15 December 2015	Chengde, CN	daily rain	30.0 mm (1.2 in)	24.0 mm (0.9 in)	37 years	57 of 100 (Notable)
15 December 2015	Yinchuan, CN	monthly rain	39.9 mm (1.6 in)	33.5 mm (1.3 in)	0 years	56 of 100 (Notable)
15 December 2015	Bergland Dam, US	daily rain	38.4 mm (1.5 in)	21.1 mm (0.8 in)	18 years	55 of 100 (Notable)
15 December 2015	Colstrip, US	daily snowfall	12.7 cm (5.0 in)	10.2 cm (4.0 in)	66 years	55 of 100 (Notable)
15 December 2015	Norris Madison Pwr House, US	daily snow depth	30.5 cm (12.0 in)	10.2 cm (4.0 in)	105 years	54 of 100 (Notable)
15 December 2015	Bryce Canyon Np Hqrs, US	monthly rain	50.8 mm (2.0 in)	15.5 mm (0.6 in)	48 years	54 of 100 (Notable)
15 December 2015	Bridger 2 N, US	monthly snowfall	22.9 cm (9.0 in)	2.6 cm (1.0 in)	88 years	53 of 100 (Notable)
15 December 2015	Moab, US	daily snowfall	17.8 cm (7.0 in)	14.5 cm (5.7 in)	44 years	53 of 100 (Notable)
15 December 2015	Marquette, US	daily rain	36.6 mm (1.4 in)	6.1 mm (0.24 in)	123 years	53 of 100 (Notable)
15 December 2015	Greeley Unc, US	daily snowfall	26.7 cm (10.5 in)	20.3 cm (8.0 in)	26 years	52 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 1,398 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 2015-12-15: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 50	1,113
50 to 100	47
100 to 150	20
150 to 200	8
200 to 250	4
250 to 300	2