Weather Records on 15 December 1984

1,397 weather records were set or tied worldwide on 15 December 1984. Highest significance: Concordia ASOS, US.

Key Facts for 15 December 1984

On 15 December 1984, 1,397 weather records were set or tied at long-record stations worldwide.
560 were record highs and 140 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 58 monthly and 1,334 daily.
Concordia ASOS set a monthly record daily precipitation of 62.5 mm (2.5 in) on 15 December 1984.
Across 168 earlier years (1793 to 2025) the same calendar date averaged 450 records.

Record Map

1,397 stations

1,397 station records on 15 December 1984 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 December 1984: highest significance records shown on the map
Station	Country	Type	Value	Significance
Concordia ASOS	United States	Record daily precipitation	62.5 mm (2.5 in)	77 of 100 (Major)
Logan 1 WNW	United States	Record daily precipitation	50.8 mm (2.0 in)	75 of 100 (Major)
Beloit	United States	Record daily precipitation	36.1 mm (1.4 in)	73 of 100 (Major)
Guide Rock	United States	Record daily snowfall	20.3 cm (8.0 in)	73 of 100 (Major)
Carandotta Station	Australia	Record daily precipitation	153.7 mm (6.1 in)	70 of 100 (Major)
Ft Davis	United States	Record daily precipitation	26.2 mm (1.0 in)	69 of 100 (Major)
Abilene	United States	Record daily precipitation	31.0 mm (1.2 in)	68 of 100 (Major)
Birni N'Konni	Niger	Record daily precipitation	64.0 mm (2.5 in)	67 of 100 (Major)
Firth	United States	Record daily precipitation	71.4 mm (2.8 in)	67 of 100 (Major)
Oban Station	Australia	Record daily precipitation	87.0 mm (3.4 in)	66 of 100 (Major)
Nambour Bowling Club	Australia	Record daily precipitation	240.0 mm (9.4 in)	66 of 100 (Major)
Weeping Water	United States	Record daily precipitation	61.0 mm (2.4 in)	62 of 100 (Major)
Ashland	United States	Record daily precipitation	35.6 mm (1.4 in)	61 of 100 (Major)
Buffalo 2 SSW	United States	Record daily precipitation	47.0 mm (1.9 in)	60 of 100 (Major)
Coldwater	United States	Record daily precipitation	39.6 mm (1.6 in)	59 of 100 (Notable)
Buckingham Downs	Australia	Record daily precipitation	137.5 mm (5.4 in)	58 of 100 (Notable)
Jornada Exp Range	United States	Record daily snowfall	20.3 cm (8.0 in)	57 of 100 (Notable)
Cawker City	United States	Record daily precipitation	27.9 mm (1.1 in)	55 of 100 (Notable)
Guide Rock	United States	Record daily precipitation	50.8 mm (2.0 in)	54 of 100 (Notable)
Pedernal 9 E	United States	Record daily snowfall	12.7 cm (5.0 in)	54 of 100 (Notable)
Medina	United States	Record daily snowfall	7.6 cm (3.0 in)	54 of 100 (Notable)
Higgins	United States	Record daily precipitation	44.5 mm (1.8 in)	54 of 100 (Notable)
Camooweal Township	Australia	Record daily precipitation	46.0 mm (1.8 in)	53 of 100 (Notable)
Larned	United States	Record daily precipitation	38.4 mm (1.5 in)	53 of 100 (Notable)
Liberal	United States	Record daily precipitation	27.2 mm (1.1 in)	53 of 100 (Notable)
Peakvale Station	Australia	Record daily precipitation	67.0 mm (2.6 in)	52 of 100 (Notable)
Hastings 4N	United States	Record daily precipitation	37.1 mm (1.5 in)	52 of 100 (Notable)
Jornada Exp Range	United States	Record snow depth	20.3 cm (8.0 in)	52 of 100 (Notable)
Enterprise	United States	Record daily snowfall	61.0 cm (24.0 in)	52 of 100 (Notable)
Grangeville	United States	Record snow depth	30.5 cm (12.0 in)	51 of 100 (Notable)
Loretta 1W	United States	Record daily precipitation	34.3 mm (1.4 in)	51 of 100 (Notable)
Wymore	United States	Record daily precipitation	39.6 mm (1.6 in)	51 of 100 (Notable)
Aleman Rch	United States	Record daily snowfall	25.4 cm (10.0 in)	51 of 100 (Notable)
Perryton 11 WNW	United States	Record daily precipitation	31.2 mm (1.2 in)	51 of 100 (Notable)
Bogantungan Post Office	Australia	Record daily precipitation	85.0 mm (3.3 in)	50 of 100 (Notable)
Kinsley 2E	United States	Record daily precipitation	68.6 mm (2.7 in)	50 of 100 (Notable)
Mtn Park	United States	Record daily snowfall	27.9 cm (11.0 in)	50 of 100 (Notable)
Currie Post Office	Australia	Record daily precipitation	27.6 mm (1.1 in)	49 of 100 (Notable)
Changde	China	Record daily precipitation	41.0 mm (1.6 in)	49 of 100 (Notable)
Burdett 3S	United States	Record daily precipitation	34.3 mm (1.4 in)	49 of 100 (Notable)
Ransom 2NE	United States	Record daily snowfall	17.8 cm (7.0 in)	49 of 100 (Notable)
Chacon	United States	Record snow depth	50.8 cm (20.0 in)	49 of 100 (Notable)
Booker	United States	Record daily precipitation	45.2 mm (1.8 in)	49 of 100 (Notable)
Snyder	United States	Record daily precipitation	33.5 mm (1.3 in)	49 of 100 (Notable)
Ellsworth	United States	Record daily precipitation	61.5 mm (2.4 in)	48 of 100 (Notable)
Fowler 3 NNE	United States	Record daily precipitation	36.6 mm (1.4 in)	48 of 100 (Notable)
Golconda	United States	Record daily snowfall	7.6 cm (3.0 in)	48 of 100 (Notable)
Deal Island	Australia	Record daily precipitation	64.8 mm (2.6 in)	47 of 100 (Notable)
Jewell	United States	Record daily precipitation	53.3 mm (2.1 in)	47 of 100 (Notable)
Medicine Lodge	United States	Record daily precipitation	58.2 mm (2.3 in)	47 of 100 (Notable)
Newton	United States	Record daily precipitation	39.4 mm (1.6 in)	47 of 100 (Notable)
Pratt 3NW	United States	Record daily precipitation	55.9 mm (2.2 in)	47 of 100 (Notable)
Balmoral Station	Australia	Record daily precipitation	125.0 mm (4.9 in)	46 of 100 (Notable)
Bulliwallah	Australia	Record daily precipitation	75.0 mm (3.0 in)	46 of 100 (Notable)
Harwell	Australia	Record daily precipitation	27.6 mm (1.1 in)	46 of 100 (Notable)
Castana Exp Farm	United States	Record daily precipitation	30.2 mm (1.2 in)	46 of 100 (Notable)
Greensburg	United States	Record daily precipitation	27.2 mm (1.1 in)	46 of 100 (Notable)
Trousdale 1 NE	United States	Record daily precipitation	28.4 mm (1.1 in)	46 of 100 (Notable)
Burlington Junction	United States	Record daily precipitation	35.6 mm (1.4 in)	46 of 100 (Notable)
Dodge City	United States	Record daily precipitation	36.3 mm (1.4 in)	46 of 100 (Notable)

Counts by Type and Timescale

1,397 records

Records set or tied on 15 December 1984 by type: Highest daily maximum 348, Lowest daily maximum 86, Highest daily minimum 212, Lowest daily minimum 54, Heaviest daily rainfall 531, Heaviest daily snowfall 99, Deepest snow cover 67.

Records on 15 December 1984 by type
Record type	Records
Highest daily maximum	348
Lowest daily maximum	86
Highest daily minimum	212
Lowest daily minimum	54
Heaviest daily rainfall	531
Heaviest daily snowfall	99
Deepest snow cover	67

Records on 15 December 1984 by timescale: all-time 5, monthly 58, daily 1,334.

How Much Records Were Beaten By

1,130 broken records

Margins by which the 1,130 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 356.0. Ties are not counted.

Top 20 by Significance

15 December 1984

Top 20 records on 15 December 1984 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 December 1984	Concordia ASOS, US	monthly rain	62.5 mm (2.5 in)	19.1 mm (0.8 in)	71 years	77 of 100 (Major)
15 December 1984	Logan 1 WNW, US	daily rain	50.8 mm (2.0 in)	31.7 mm (1.2 in)	89 years	75 of 100 (Major)
15 December 1984	Beloit, US	daily rain	36.1 mm (1.4 in)	26.4 mm (1.0 in)	89 years	73 of 100 (Major)
15 December 1984	Guide Rock, US	daily snowfall	20.3 cm (8.0 in)	20.3 cm (8.0 in)	84 years	73 of 100 (Major)
15 December 1984	Carandotta Station, AU	monthly rain	153.7 mm (6.1 in)	67.3 mm (2.6 in)	33 years	70 of 100 (Major)
15 December 1984	Ft Davis, US	daily rain	26.2 mm (1.0 in)	22.1 mm (0.9 in)	73 years	69 of 100 (Major)
15 December 1984	Abilene, US	daily rain	31.0 mm (1.2 in)	25.4 mm (1.0 in)	89 years	68 of 100 (Major)
15 December 1984	Birni N'Konni, NE	monthly rain	64.0 mm (2.5 in)	64.0 mm (2.5 in)	46 years	67 of 100 (Major)
15 December 1984	Firth, US	monthly rain	71.4 mm (2.8 in)	35.8 mm (1.4 in)	37 years	67 of 100 (Major)
15 December 1984	Oban Station, AU	daily rain	87.0 mm (3.4 in)	78.9 mm (3.1 in)	66 years	66 of 100 (Major)
15 December 1984	Nambour Bowling Club, AU	daily rain	240.0 mm (9.4 in)	211.8 mm (8.3 in)	58 years	66 of 100 (Major)
15 December 1984	Weeping Water, US	daily rain	61.0 mm (2.4 in)	48.3 mm (1.9 in)	44 years	62 of 100 (Major)
15 December 1984	Ashland, US	daily rain	35.6 mm (1.4 in)	27.0 mm (1.1 in)	44 years	61 of 100 (Major)
15 December 1984	Buffalo 2 SSW, US	daily rain	47.0 mm (1.9 in)	39.4 mm (1.6 in)	44 years	60 of 100 (Major)
15 December 1984	Coldwater, US	daily rain	39.6 mm (1.6 in)	26.1 mm (1.0 in)	44 years	59 of 100 (Notable)
15 December 1984	Buckingham Downs, AU	monthly rain	137.5 mm (5.4 in)	61.5 mm (2.4 in)	9 years	58 of 100 (Notable)
15 December 1984	Jornada Exp Range, US	all-time snowfall	20.3 cm (8.0 in)	5.1 cm (2.0 in)	66 years	57 of 100 (Notable)
15 December 1984	Cawker City, US	daily rain	27.9 mm (1.1 in)	21.5 mm (0.8 in)	44 years	55 of 100 (Notable)
15 December 1984	Guide Rock, US	monthly rain	50.8 mm (2.0 in)	8.9 mm (0.35 in)	71 years	54 of 100 (Notable)
15 December 1984	Pedernal 9 E, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	55 years	54 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 1984

Records set or tied on this calendar date in each year from 1793 to 1984. 1984 had 1,397 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 1984-12-15: 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	1,054
50 to 100	50
100 to 150	14
150 to 200	7
200 to 250	3
250 to 300	1
300 to 350	0
350 to 400	1