Weather Records on 15 December 2018

539 weather records were set or tied worldwide on 15 December 2018. Highest significance: Annuello, AU.

Key Facts for 15 December 2018

On 15 December 2018, 539 weather records were set or tied at long-record stations worldwide.
165 were record highs and 26 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 13 monthly and 525 daily.
Annuello set a daily record precipitation of 41.6 mm (1.6 in) on 15 December 2018.
Across 168 earlier years (1793 to 2025) the same calendar date averaged 455 records.

Record Map

539 stations

539 station records on 15 December 2018 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 December 2018: highest significance records shown on the map
Station	Country	Type	Value	Significance
Annuello	Australia	Record daily precipitation	41.6 mm (1.6 in)	71 of 100 (Major)
Washington Reagan Natl AP	United States	Record daily precipitation	64.8 mm (2.6 in)	67 of 100 (Major)
Cape Barren Island (Cape Barre	Australia	Record daily precipitation	60.6 mm (2.4 in)	66 of 100 (Major)
Dulan	China	Record daily precipitation	89.9 mm (3.5 in)	66 of 100 (Major)
Arad	Romania	Record daily precipitation	28.1 mm (1.1 in)	64 of 100 (Major)
Hordern Vale	Australia	Record daily precipitation	58.8 mm (2.3 in)	63 of 100 (Major)
Memana (Babel Farm)	Australia	Record daily precipitation	67.8 mm (2.7 in)	62 of 100 (Major)
Cape Moreton Lighthouse	Australia	Record daily precipitation	80.4 mm (3.2 in)	60 of 100 (Major)
Big Hill (Glen Dusk)	Australia	Record daily precipitation	55.0 mm (2.2 in)	59 of 100 (Notable)
Whitemark Post Office	Australia	Record daily precipitation	74.4 mm (2.9 in)	57 of 100 (Notable)
Charlottesville 2W	United States	Record daily precipitation	47.5 mm (1.9 in)	56 of 100 (Notable)
Melbourne Botanical Gardens	Australia	Record daily precipitation	47.0 mm (1.9 in)	55 of 100 (Notable)
Inverness 3 SE	United States	Record daily precipitation	139.7 mm (5.5 in)	53 of 100 (Notable)
Brookgreen Gardens	United States	Record daily precipitation	84.6 mm (3.3 in)	53 of 100 (Notable)
Yabba Station	Australia	Record daily precipitation	73.8 mm (2.9 in)	52 of 100 (Notable)
Flinders Island Airport	Australia	Record daily precipitation	66.6 mm (2.6 in)	52 of 100 (Notable)
Surat Thani	Thailand	Record daily precipitation	104.4 mm (4.1 in)	52 of 100 (Notable)
Hillsborough	United Kingdom	Record daily precipitation	32.2 mm (1.3 in)	52 of 100 (Notable)
Miranda Downs Station	Australia	Record daily precipitation	69.0 mm (2.7 in)	51 of 100 (Notable)
Killara	Australia	Record daily precipitation	72.4 mm (2.9 in)	51 of 100 (Notable)
Crescent City	United States	Record daily precipitation	106.7 mm (4.2 in)	51 of 100 (Notable)
Martinsburg E W Virginia Rgnl	United States	Record daily precipitation	56.1 mm (2.2 in)	51 of 100 (Notable)
Abingdon Downs Station	Australia	Record daily precipitation	120.0 mm (4.7 in)	50 of 100 (Notable)
Rosevale	Australia	Record daily precipitation	118.6 mm (4.7 in)	50 of 100 (Notable)
Danewood Vale	Australia	Record daily precipitation	73.0 mm (2.9 in)	50 of 100 (Notable)
Marulan (George St)	Australia	Record daily precipitation	30.0 mm (1.2 in)	50 of 100 (Notable)
Sea Lake (Marston Downs)	Australia	Record daily precipitation	32.0 mm (1.3 in)	50 of 100 (Notable)
Coleraine (Melville Forest)	Australia	Record daily precipitation	41.0 mm (1.6 in)	50 of 100 (Notable)
Romney 1 SW	United States	Record daily precipitation	29.5 mm (1.2 in)	50 of 100 (Notable)
Cross City 1 E	United States	Record daily precipitation	99.3 mm (3.9 in)	48 of 100 (Notable)
Baltimore-Washington Intl AP	United States	Record daily precipitation	56.9 mm (2.2 in)	48 of 100 (Notable)
Hallett (Lorraine)	Australia	Record daily precipitation	27.0 mm (1.1 in)	47 of 100 (Notable)
Bullengarook East (Seskinore)	Australia	Record daily precipitation	38.6 mm (1.5 in)	47 of 100 (Notable)
Stornoway Airport	United Kingdom	Record daily precipitation	29.8 mm (1.2 in)	47 of 100 (Notable)
Threave	United Kingdom	Record daily precipitation	47.2 mm (1.9 in)	47 of 100 (Notable)
Meadows	Australia	Record daily precipitation	33.8 mm (1.3 in)	46 of 100 (Notable)
Dubois Srn In Forage Farm	United States	Record daily precipitation	54.9 mm (2.2 in)	46 of 100 (Notable)
Wooroolin Post Office	Australia	Record daily precipitation	73.8 mm (2.9 in)	45 of 100 (Notable)
1 ENE Fairfield	United States	Record daily precipitation	61.7 mm (2.4 in)	45 of 100 (Notable)
Bringelly (Maryland)	Australia	Record daily precipitation	41.0 mm (1.6 in)	44 of 100 (Notable)
Savage Rvr Dam	United States	Record daily precipitation	34.3 mm (1.4 in)	44 of 100 (Notable)
Washington Dulles Intl AP	United States	Record daily precipitation	63.2 mm (2.5 in)	43 of 100 (Notable)
Wedderburn (Booalbyn)	Australia	Record daily precipitation	39.0 mm (1.5 in)	42 of 100 (Notable)
Rock Flat (Old Post Office)	Australia	Record daily precipitation	26.2 mm (1.0 in)	42 of 100 (Notable)
Waterhouse(Barooga)	Australia	Record daily precipitation	43.4 mm (1.7 in)	42 of 100 (Notable)
Tete	Mozambique	Record low minimum temperature	16.7 C (62.1 F)	42 of 100 (Notable)
Lake City 2 E	United States	Record daily precipitation	67.3 mm (2.6 in)	42 of 100 (Notable)
Woodend (Carlisle Street)	Australia	Record daily precipitation	36.0 mm (1.4 in)	41 of 100 (Notable)
Glen Park (White Swan Reservoi	Australia	Record daily precipitation	54.2 mm (2.1 in)	41 of 100 (Notable)
Gladstone (Old Post Office)	Australia	Record daily precipitation	60.4 mm (2.4 in)	41 of 100 (Notable)
Craibstone	United Kingdom	Record daily precipitation	34.4 mm (1.4 in)	41 of 100 (Notable)
De Soto	United States	Record daily precipitation	56.9 mm (2.2 in)	41 of 100 (Notable)
Cheraw	United States	Record daily precipitation	29.7 mm (1.2 in)	41 of 100 (Notable)
Summerville 4W	United States	Record daily precipitation	52.1 mm (2.1 in)	41 of 100 (Notable)
Buckingham	United States	Record daily precipitation	34.3 mm (1.4 in)	41 of 100 (Notable)
Eddystone Point	Australia	Record daily precipitation	32.6 mm (1.3 in)	40 of 100 (Notable)
Hvar	Croatia	Record daily precipitation	41.1 mm (1.6 in)	40 of 100 (Notable)
Mt Vernon	United States	Record daily precipitation	58.2 mm (2.3 in)	40 of 100 (Notable)
Elizabeth City	United States	Record daily precipitation	40.4 mm (1.6 in)	40 of 100 (Notable)
Marion	United States	Record daily precipitation	49.5 mm (1.9 in)	40 of 100 (Notable)

Counts by Type and Timescale

539 records

Records set or tied on 15 December 2018 by type: Highest daily maximum 65, Lowest daily maximum 11, Highest daily minimum 100, Lowest daily minimum 15, Heaviest daily rainfall 337, Heaviest daily snowfall 2, Deepest snow cover 9.

Records on 15 December 2018 by type
Record type	Records
Highest daily maximum	65
Lowest daily maximum	11
Highest daily minimum	100
Lowest daily minimum	15
Heaviest daily rainfall	337
Heaviest daily snowfall	2
Deepest snow cover	9

Records on 15 December 2018 by timescale: all-time 1, monthly 13, daily 525.

How Much Records Were Beaten By

479 broken records

Margins by which the 479 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 2018

Top 20 records on 15 December 2018 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 December 2018	Annuello, AU	daily rain	41.6 mm (1.6 in)	28.9 mm (1.1 in)	85 years	71 of 100 (Major)
15 December 2018	Washington Reagan Natl AP, US	daily rain	64.8 mm (2.6 in)	40.9 mm (1.6 in)	69 years	67 of 100 (Major)
15 December 2018	Cape Barren Island (Cape Barre, AU	daily rain	60.6 mm (2.4 in)	29.9 mm (1.2 in)	84 years	66 of 100 (Major)
15 December 2018	Dulan, CN	all-time rain	89.9 mm (3.5 in)	39.9 mm (1.6 in)	1 year	66 of 100 (Major)
15 December 2018	Arad, RO	daily rain	28.1 mm (1.1 in)	13.8 mm (0.5 in)	80 years	64 of 100 (Major)
15 December 2018	Hordern Vale, AU	daily rain	58.8 mm (2.3 in)	34.2 mm (1.3 in)	57 years	63 of 100 (Major)
15 December 2018	Memana (Babel Farm), AU	daily rain	67.8 mm (2.7 in)	39.9 mm (1.6 in)	56 years	62 of 100 (Major)
15 December 2018	Cape Moreton Lighthouse, AU	daily rain	80.4 mm (3.2 in)	43.3 mm (1.7 in)	92 years	60 of 100 (Major)
15 December 2018	Big Hill (Glen Dusk), AU	daily rain	55.0 mm (2.2 in)	32.6 mm (1.3 in)	71 years	59 of 100 (Notable)
15 December 2018	Whitemark Post Office, AU	daily rain	74.4 mm (2.9 in)	52.4 mm (2.1 in)	43 years	57 of 100 (Notable)
15 December 2018	Charlottesville 2W, US	daily rain	47.5 mm (1.9 in)	20.3 mm (0.8 in)	116 years	56 of 100 (Notable)
15 December 2018	Melbourne Botanical Gardens, AU	daily rain	47.0 mm (1.9 in)	37.6 mm (1.5 in)	33 years	55 of 100 (Notable)
15 December 2018	Inverness 3 SE, US	monthly rain	139.7 mm (5.5 in)	27.7 mm (1.1 in)	45 years	53 of 100 (Notable)
15 December 2018	Brookgreen Gardens, US	daily rain	84.6 mm (3.3 in)	62.0 mm (2.4 in)	24 years	53 of 100 (Notable)
15 December 2018	Yabba Station, AU	daily rain	73.8 mm (2.9 in)	27.1 mm (1.1 in)	92 years	52 of 100 (Notable)
15 December 2018	Flinders Island Airport, AU	daily rain	66.6 mm (2.6 in)	26.0 mm (1.0 in)	56 years	52 of 100 (Notable)
15 December 2018	Surat Thani, TH	daily rain	104.4 mm (4.1 in)	79.5 mm (3.1 in)	53 years	52 of 100 (Notable)
15 December 2018	Hillsborough, GB	daily rain	32.2 mm (1.3 in)	20.4 mm (0.8 in)	28 years	52 of 100 (Notable)
15 December 2018	Miranda Downs Station, AU	daily rain	69.0 mm (2.7 in)	32.9 mm (1.3 in)	88 years	51 of 100 (Notable)
15 December 2018	Killara, AU	daily rain	72.4 mm (2.9 in)	41.9 mm (1.6 in)	56 years	51 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 2018

Records set or tied on this calendar date in each year from 1793 to 2018. 2018 had 539 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 2018-12-15: 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	467
50 to 100	11
100 to 150	0
150 to 200	0
200 to 250	0
250 to 300	1