Weather Records on 17 December 1984

1,618 weather records were set or tied worldwide on 17 December 1984. Highest significance: Wick, GB.

Key Facts for 17 December 1984

On 17 December 1984, 1,618 weather records were set or tied at long-record stations worldwide.
1,108 were record highs and 196 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 20 monthly and 1,598 daily.
Wick set a daily record precipitation of 38.4 mm (1.5 in) on 17 December 1984.
Across 160 earlier years (1793 to 2025) the same calendar date averaged 456 records.

Record Map

1,618 stations

1,618 station records on 17 December 1984 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 December 1984: highest significance records shown on the map
Station	Country	Type	Value	Significance
Wick	United Kingdom	Record daily precipitation	38.4 mm (1.5 in)	60 of 100 (Major)
Coeur D'Alene	United States	Record daily snowfall	27.9 cm (11.0 in)	56 of 100 (Notable)
Rosella Plains Station	Australia	Record daily precipitation	91.4 mm (3.6 in)	54 of 100 (Notable)
Tiree	Australia	Record daily precipitation	81.0 mm (3.2 in)	51 of 100 (Notable)
Dal-Ftw Wscmo AP	United States	Record daily precipitation	48.5 mm (1.9 in)	50 of 100 (Notable)
Bishop AP	United States	Record low minimum temperature	-17.8 C (0.0 F)	49 of 100 (Notable)
Ludington 4 SE	United States	Record high maximum temperature	14.4 C (57.9 F)	47 of 100 (Notable)
Defiance	United States	Record high maximum temperature	17.8 C (64.0 F)	46 of 100 (Notable)
Maricopa	United States	Record low minimum temperature	-8.9 C (16.0 F)	45 of 100 (Notable)
Glenwood 3SW	United States	Record daily precipitation	63.5 mm (2.5 in)	45 of 100 (Notable)
Lockport 2SE	United States	Record high maximum temperature	16.7 C (62.1 F)	45 of 100 (Notable)
Beulah	United States	Record daily snowfall	10.2 cm (4.0 in)	45 of 100 (Notable)
Britton	United States	Record daily snowfall	7.6 cm (3.0 in)	45 of 100 (Notable)
Toledo Blade	United States	Record high maximum temperature	17.2 C (63.0 F)	44 of 100 (Notable)
College Obsy	United States	Record daily snowfall	21.8 cm (8.6 in)	44 of 100 (Notable)
Carrollton Lock 1	United States	Record high maximum temperature	21.1 C (70.0 F)	43 of 100 (Notable)
W Branch 3SE	United States	Record high maximum temperature	13.9 C (57.0 F)	43 of 100 (Notable)
Morgantown Muni AP	United States	Record high minimum temperature	13.3 C (55.9 F)	43 of 100 (Notable)
E Tawas	United States	Record high maximum temperature	14.4 C (57.9 F)	42 of 100 (Notable)
Turquoise Bonanza Ck	United States	Record snow depth	20.3 cm (8.0 in)	42 of 100 (Notable)
Beulah	United States	Record snow depth	17.8 cm (7.0 in)	42 of 100 (Notable)
Pioche	United States	Record low minimum temperature	-15.6 C (3.9 F)	41 of 100 (Notable)
Angelica	United States	Record high maximum temperature	13.9 C (57.0 F)	41 of 100 (Notable)
Toledo Blade	United States	Record high minimum temperature	6.7 C (44.1 F)	41 of 100 (Notable)
Penola Downs Station	Australia	Record daily precipitation	64.0 mm (2.5 in)	40 of 100 (Notable)
Bad Axe	United States	Record high maximum temperature	15.6 C (60.1 F)	40 of 100 (Notable)
Petoskey	United States	Record high maximum temperature	10.0 C (50.0 F)	40 of 100 (Notable)
Peterboro 2 S	United States	Record high minimum temperature	5.6 C (42.1 F)	40 of 100 (Notable)
Fremont	United States	Record high maximum temperature	17.2 C (63.0 F)	40 of 100 (Notable)
Condon	United States	Record daily snowfall	10.2 cm (4.0 in)	40 of 100 (Notable)
Walla Walla Rgnl AP	United States	Record daily snowfall	11.4 cm (4.5 in)	40 of 100 (Notable)
Caixa de Areia	Brazil	Record daily precipitation	99.4 mm (3.9 in)	39 of 100 (Notable)
Santa Maria da Serra	Brazil	Record daily precipitation	141.5 mm (5.6 in)	39 of 100 (Notable)
Jayuya	Puerto Rico [United States]	Record daily precipitation	42.9 mm (1.7 in)	39 of 100 (Notable)
Ottawa 4SW	United States	Record high maximum temperature	16.7 C (62.1 F)	39 of 100 (Notable)
Vevay	United States	Record high minimum temperature	14.4 C (57.9 F)	39 of 100 (Notable)
Setauket Strong	United States	Record high maximum temperature	15.0 C (59.0 F)	39 of 100 (Notable)
Watertown	United States	Record high maximum temperature	13.9 C (57.0 F)	39 of 100 (Notable)
Terrell	United States	Record daily precipitation	50.8 mm (2.0 in)	39 of 100 (Notable)
Oconto 4 W	United States	Record high maximum temperature	11.7 C (53.1 F)	39 of 100 (Notable)
Oshkosh	United States	Record high maximum temperature	13.3 C (55.9 F)	39 of 100 (Notable)
Dutch Harbor	United States	Record high minimum temperature	6.7 C (44.1 F)	39 of 100 (Notable)
Auburn 2 SSE	United States	Record high maximum temperature	16.1 C (61.0 F)	38 of 100 (Notable)
Marion 2 N	United States	Record high maximum temperature	18.3 C (64.9 F)	38 of 100 (Notable)
Eastport	United States	Record high minimum temperature	4.4 C (39.9 F)	38 of 100 (Notable)
Bosque del Apache	United States	Record snow depth	20.3 cm (8.0 in)	38 of 100 (Notable)
Ogdensburg 4 NE	United States	Record high maximum temperature	10.6 C (51.1 F)	38 of 100 (Notable)
Antigo	United States	Record high maximum temperature	8.9 C (48.0 F)	38 of 100 (Notable)
Griffiss AFB	United States	Record high maximum temperature	11.1 C (52.0 F)	38 of 100 (Notable)
Rio Piracicaba	Brazil	Record daily precipitation	78.4 mm (3.1 in)	37 of 100 (Notable)
Jerome	United States	Record low maximum temperature	2.2 C (36.0 F)	37 of 100 (Notable)
Lewiston	United States	Record high maximum temperature	12.8 C (55.0 F)	37 of 100 (Notable)
Harbor Beach 1 SSE	United States	Record high maximum temperature	15.6 C (60.1 F)	37 of 100 (Notable)
Caledonia	United States	Record high maximum temperature	10.6 C (51.1 F)	37 of 100 (Notable)
Canton 4 SE	United States	Record high maximum temperature	12.8 C (55.0 F)	37 of 100 (Notable)
Kokomo 3 WSW	United States	Record high maximum temperature	17.8 C (64.0 F)	36 of 100 (Notable)
Mt Vernon	United States	Record high maximum temperature	21.1 C (70.0 F)	36 of 100 (Notable)
Wheatfield	United States	Record high maximum temperature	20.6 C (69.1 F)	36 of 100 (Notable)
Shelbyville 1 E	United States	Record high maximum temperature	21.1 C (70.0 F)	36 of 100 (Notable)
Bloomingdale	United States	Record high maximum temperature	17.2 C (63.0 F)	36 of 100 (Notable)

Counts by Type and Timescale

1,618 records

Records set or tied on 17 December 1984 by type: Highest daily maximum 669, Lowest daily maximum 97, Highest daily minimum 439, Lowest daily minimum 99, Heaviest daily rainfall 178, Heaviest daily snowfall 78, Deepest snow cover 58.

Records on 17 December 1984 by type
Record type	Records
Highest daily maximum	669
Lowest daily maximum	97
Highest daily minimum	439
Lowest daily minimum	99
Heaviest daily rainfall	178
Heaviest daily snowfall	78
Deepest snow cover	58

Records on 17 December 1984 by timescale: all-time 0, monthly 20, daily 1,598.

How Much Records Were Beaten By

1,380 broken records

Margins by which the 1,380 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 203.0. Ties are not counted.

Top 20 by Significance

17 December 1984

Top 20 records on 17 December 1984 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 December 1984	Wick, GB	daily rain	38.4 mm (1.5 in)	22.7 mm (0.9 in)	52 years	60 of 100 (Major)
17 December 1984	Coeur D'Alene, US	daily snowfall	27.9 cm (11.0 in)	17.7 cm (7.0 in)	53 years	56 of 100 (Notable)
17 December 1984	Rosella Plains Station, AU	daily rain	91.4 mm (3.6 in)	56.9 mm (2.2 in)	51 years	54 of 100 (Notable)
17 December 1984	Tiree, AU	daily rain	81.0 mm (3.2 in)	42.9 mm (1.7 in)	60 years	51 of 100 (Notable)
17 December 1984	Dal-Ftw Wscmo AP, US	daily rain	48.5 mm (1.9 in)	44.4 mm (1.7 in)	25 years	50 of 100 (Notable)
17 December 1984	Bishop AP, US	daily low min	-17.8 C (0.0 F)	5.6 C (10.1 F)	88 years	49 of 100 (Notable)
17 December 1984	Ludington 4 SE, US	daily high max	14.4 C (57.9 F)	6.6 C (11.9 F)	84 years	47 of 100 (Notable)
17 December 1984	Defiance, US	daily high max	17.8 C (64.0 F)	6.7 C (12.1 F)	88 years	46 of 100 (Notable)
17 December 1984	Maricopa, US	daily low min	-8.9 C (16.0 F)	6.7 C (12.1 F)	69 years	45 of 100 (Notable)
17 December 1984	Glenwood 3SW, US	monthly rain	63.5 mm (2.5 in)	7.6 mm (0.30 in)	52 years	45 of 100 (Notable)
17 December 1984	Lockport 2SE, US	daily high max	16.7 C (62.1 F)	5.6 C (10.1 F)	89 years	45 of 100 (Notable)
17 December 1984	Beulah, US	daily snowfall	10.2 cm (4.0 in)	5.1 cm (2.0 in)	81 years	45 of 100 (Notable)
17 December 1984	Britton, US	daily snowfall	7.6 cm (3.0 in)	5.8 cm (2.3 in)	60 years	45 of 100 (Notable)
17 December 1984	Toledo Blade, US	daily high max	17.2 C (63.0 F)	2.8 C (5.0 F)	106 years	44 of 100 (Notable)
17 December 1984	College Obsy, US	daily snowfall	21.8 cm (8.6 in)	14.9 cm (5.9 in)	14 years	44 of 100 (Notable)
17 December 1984	Carrollton Lock 1, US	daily high max	21.1 C (70.0 F)	5.5 C (9.9 F)	88 years	43 of 100 (Notable)
17 December 1984	W Branch 3SE, US	daily high max	13.9 C (57.0 F)	7.2 C (13.0 F)	71 years	43 of 100 (Notable)
17 December 1984	Morgantown Muni AP, US	daily high min	13.3 C (55.9 F)	2.2 C (4.0 F)	106 years	43 of 100 (Notable)
17 December 1984	E Tawas, US	daily high max	14.4 C (57.9 F)	5.5 C (9.9 F)	71 years	42 of 100 (Notable)
17 December 1984	Turquoise Bonanza Ck, US	daily snow depth	20.3 cm (8.0 in)	12.7 cm (5.0 in)	24 years	42 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 1,618 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 1984-12-17: 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 50	1,333
50 to 100	32
100 to 150	13
150 to 200	1
200 to 250	1