Weather Records on 15 December 1979

560 weather records were set or tied worldwide on 15 December 1979. Highest significance: Blackleaf, US.

Key Facts for 15 December 1979

On 15 December 1979, 560 weather records were set or tied at long-record stations worldwide.
209 were record highs and 75 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 12 monthly and 548 daily.
Blackleaf set a monthly record daily snowfall of 45.7 cm (18.0 in) on 15 December 1979.
Across 168 earlier years (1793 to 2025) the same calendar date averaged 455 records.

Record Map

560 stations

560 station records on 15 December 1979 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 December 1979: highest significance records shown on the map
Station	Country	Type	Value	Significance
Blackleaf	United States	Record daily snowfall	45.7 cm (18.0 in)	57 of 100 (Notable)
Buckley 1 NE	United States	Record daily precipitation	71.1 mm (2.8 in)	53 of 100 (Notable)
Puyallup 2 W Exp STN	United States	Record daily precipitation	64.0 mm (2.5 in)	53 of 100 (Notable)
Meleiro	Brazil	Record daily precipitation	59.0 mm (2.3 in)	50 of 100 (Notable)
Caldwell	Canada	Record daily precipitation	36.1 mm (1.4 in)	50 of 100 (Notable)
Caldwell	Canada	Record daily snowfall	36.1 cm (14.2 in)	50 of 100 (Notable)
Cooyar Post Office	Australia	Record daily precipitation	83.2 mm (3.3 in)	49 of 100 (Notable)
Westermarkelsdorf/Fehmarn	Germany	Record snow depth	20.0 cm (7.9 in)	49 of 100 (Notable)
Pendroy 2 NNW	United States	Record daily snowfall	25.4 cm (10.0 in)	48 of 100 (Notable)
Forquilhinha	Brazil	Record daily precipitation	60.4 mm (2.4 in)	44 of 100 (Notable)
Visby_Flygplats	Sweden	Record low minimum temperature	-10.9 C (12.4 F)	44 of 100 (Notable)
Anacortes	United States	Record daily precipitation	38.9 mm (1.5 in)	44 of 100 (Notable)
Guaira	Brazil	Record daily precipitation	113.4 mm (4.5 in)	43 of 100 (Notable)
Fairfield	United States	Record daily snowfall	12.7 cm (5.0 in)	43 of 100 (Notable)
Sun Rvr 4 S	United States	Record daily snowfall	15.2 cm (6.0 in)	40 of 100 (Notable)
Banana Post Office	Australia	Record daily precipitation	99.0 mm (3.9 in)	39 of 100 (Notable)
Kuujjuarapik A	Canada	Record daily snowfall	13.9 cm (5.5 in)	39 of 100 (Notable)
Ethridge	United States	Record daily snowfall	12.7 cm (5.0 in)	38 of 100 (Notable)
Saint Ignatius	United States	Record daily snowfall	29.2 cm (11.5 in)	38 of 100 (Notable)
Mud Mtn Dam	United States	Record daily precipitation	59.9 mm (2.4 in)	37 of 100 (Notable)
Taabinga	Australia	Record daily precipitation	106.6 mm (4.2 in)	36 of 100 (Notable)
Northport	United States	Record high maximum temperature	9.4 C (48.9 F)	36 of 100 (Notable)
Manitowoc	United States	Record high maximum temperature	11.1 C (52.0 F)	36 of 100 (Notable)
Ardurad	Australia	Record daily precipitation	50.0 mm (2.0 in)	33 of 100 (Routine)
Kumbia Post Office	Australia	Record daily precipitation	97.0 mm (3.8 in)	33 of 100 (Routine)
Rio Pequeno	Brazil	Record daily precipitation	124.6 mm (4.9 in)	33 of 100 (Routine)
Choteau	United States	Record daily snowfall	15.2 cm (6.0 in)	32 of 100 (Routine)
Bozeman Gallatin Fld AP	United States	Record daily snowfall	10.2 cm (4.0 in)	32 of 100 (Routine)
Willapa Harbor	United States	Record daily precipitation	79.0 mm (3.1 in)	31 of 100 (Routine)
Mtn View 91	United States	Record high maximum temperature	28.9 C (84.0 F)	31 of 100 (Routine)
Langley Downs	Australia	Record daily precipitation	67.5 mm (2.7 in)	30 of 100 (Routine)
Brocken	Germany	Record daily precipitation	25.4 mm (1.0 in)	30 of 100 (Routine)
Liepaja	Latvia	Record low minimum temperature	-18.6 C (-1.5 F)	30 of 100 (Routine)
Vastervik	Sweden	Record low minimum temperature	-14.5 C (5.9 F)	30 of 100 (Routine)
Augusta	United States	Record daily snowfall	17.8 cm (7.0 in)	30 of 100 (Routine)
Turallin	Australia	Record daily precipitation	59.0 mm (2.3 in)	29 of 100 (Routine)
Gunbower	Australia	Record daily precipitation	44.6 mm (1.8 in)	29 of 100 (Routine)
Ibirama (Pcd)	Brazil	Record daily precipitation	54.9 mm (2.2 in)	29 of 100 (Routine)
The Dalles	United States	Record high maximum temperature	16.7 C (62.1 F)	29 of 100 (Routine)
Phillips	United States	Record snow depth	20.3 cm (8.0 in)	29 of 100 (Routine)
Conrad	United States	Record daily snowfall	15.2 cm (6.0 in)	28 of 100 (Routine)
Hood Rvr Exp STN	United States	Record high minimum temperature	7.8 C (46.0 F)	28 of 100 (Routine)
Floydada	United States	Record daily snowfall	5.1 cm (2.0 in)	28 of 100 (Routine)
Goodger Store	Australia	Record daily precipitation	92.0 mm (3.6 in)	27 of 100 (Routine)
McBride 4SE	Canada	Record low minimum temperature	-39.5 C (-39.1 F)	27 of 100 (Routine)
Barabinsk	Russia	Record high minimum temperature	-6.9 C (19.6 F)	27 of 100 (Routine)
Inga	Russia	Record high maximum temperature	7.7 C (45.9 F)	27 of 100 (Routine)
Gibson Dam	United States	Record daily snowfall	22.9 cm (9.0 in)	27 of 100 (Routine)
Tewantin Post Office	Australia	Record high minimum temperature	24.4 C (75.9 F)	26 of 100 (Routine)
Fazenda Laranjal	Brazil	Record daily precipitation	44.3 mm (1.7 in)	26 of 100 (Routine)
Fazenda Chantebled	Brazil	Record daily precipitation	64.2 mm (2.5 in)	26 of 100 (Routine)
Olenja Rechka	Russia	Record high maximum temperature	-2.6 C (27.3 F)	26 of 100 (Routine)
East Anaconda	United States	Record daily snowfall	12.7 cm (5.0 in)	26 of 100 (Routine)
White Sulphur Spg 10 N	United States	Record daily snowfall	15.2 cm (6.0 in)	26 of 100 (Routine)
Sao Francisco da Corredeira	Brazil	Record daily precipitation	59.8 mm (2.4 in)	25 of 100 (Routine)
Petropavlovsk-Kamchatskij	Russia	Record high minimum temperature	-0.6 C (30.9 F)	25 of 100 (Routine)
Pekisko	Canada	Record low minimum temperature	-37.2 C (-35.0 F)	24 of 100 (Routine)
Petropavlovskij Majak	Russia	Record high maximum temperature	3.1 C (37.6 F)	24 of 100 (Routine)
Dzardzan	Russia	Record high maximum temperature	-8.2 C (17.2 F)	24 of 100 (Routine)
Hemse	Sweden	Record low minimum temperature	-16.0 C (3.2 F)	24 of 100 (Routine)

Counts by Type and Timescale

560 records

Records set or tied on 15 December 1979 by type: Highest daily maximum 126, Lowest daily maximum 37, Highest daily minimum 83, Lowest daily minimum 38, Heaviest daily rainfall 228, Heaviest daily snowfall 35, Deepest snow cover 13.

Records on 15 December 1979 by type
Record type	Records
Highest daily maximum	126
Lowest daily maximum	37
Highest daily minimum	83
Lowest daily minimum	38
Heaviest daily rainfall	228
Heaviest daily snowfall	35
Deepest snow cover	13

Records on 15 December 1979 by timescale: all-time 0, monthly 12, daily 548.

How Much Records Were Beaten By

468 broken records

Margins by which the 468 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 305.0. Ties are not counted.

Top 20 by Significance

15 December 1979

Top 20 records on 15 December 1979 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 December 1979	Blackleaf, US	monthly snowfall	45.7 cm (18.0 in)	22.8 cm (9.0 in)	2 years	57 of 100 (Notable)
15 December 1979	Buckley 1 NE, US	daily rain	71.1 mm (2.8 in)	30.0 mm (1.2 in)	54 years	53 of 100 (Notable)
15 December 1979	Puyallup 2 W Exp STN, US	daily rain	64.0 mm (2.5 in)	32.5 mm (1.3 in)	40 years	53 of 100 (Notable)
15 December 1979	Meleiro, BR	daily rain	59.0 mm (2.3 in)	50.4 mm (2.0 in)	26 years	50 of 100 (Notable)
15 December 1979	Caldwell, CA	daily rain	36.1 mm (1.4 in)	25.9 mm (1.0 in)	32 years	50 of 100 (Notable)
15 December 1979	Caldwell, CA	daily snowfall	36.1 cm (14.2 in)	25.9 cm (10.2 in)	32 years	50 of 100 (Notable)
15 December 1979	Cooyar Post Office, AU	daily rain	83.2 mm (3.3 in)	48.1 mm (1.9 in)	30 years	49 of 100 (Notable)
15 December 1979	Westermarkelsdorf/Fehmarn, DE	daily snow depth	20.0 cm (7.9 in)	18.0 cm (7.1 in)	21 years	49 of 100 (Notable)
15 December 1979	Pendroy 2 NNW, US	daily snowfall	25.4 cm (10.0 in)	17.8 cm (7.0 in)	30 years	48 of 100 (Notable)
15 December 1979	Forquilhinha, BR	daily rain	60.4 mm (2.4 in)	41.2 mm (1.6 in)	26 years	44 of 100 (Notable)
15 December 1979	Visby_Flygplats, SE	daily low min	-10.9 C (12.4 F)	3.9 C (7.0 F)	80 years	44 of 100 (Notable)
15 December 1979	Anacortes, US	daily rain	38.9 mm (1.5 in)	10.2 mm (0.4 in)	72 years	44 of 100 (Notable)
15 December 1979	Guaira, BR	daily rain	113.4 mm (4.5 in)	78.2 mm (3.1 in)	8 years	43 of 100 (Notable)
15 December 1979	Fairfield, US	daily snowfall	12.7 cm (5.0 in)	8.9 cm (3.5 in)	30 years	43 of 100 (Notable)
15 December 1979	Sun Rvr 4 S, US	daily snowfall	15.2 cm (6.0 in)	11.4 cm (4.5 in)	14 years	40 of 100 (Notable)
15 December 1979	Banana Post Office, AU	daily rain	99.0 mm (3.9 in)	43.6 mm (1.7 in)	8 years	39 of 100 (Notable)
15 December 1979	Kuujjuarapik A, CA	daily snowfall	13.9 cm (5.5 in)	7.5 cm (3.0 in)	40 years	39 of 100 (Notable)
15 December 1979	Ethridge, US	daily snowfall	12.7 cm (5.0 in)	10.2 cm (4.0 in)	28 years	38 of 100 (Notable)
15 December 1979	Saint Ignatius, US	monthly snowfall	29.2 cm (11.5 in)	7.6 cm (3.0 in)	8 years	38 of 100 (Notable)
15 December 1979	Mud Mtn Dam, US	daily rain	59.9 mm (2.4 in)	24.3 mm (1.0 in)	32 years	37 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 1979

Records set or tied on this calendar date in each year from 1793 to 1979. 1979 had 560 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 1979-12-15: 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	447
50 to 100	12
100 to 150	4
150 to 200	2
200 to 250	1
250 to 300	1
300 to 350	1