Weather Records on 18 December 1987

1,505 weather records were set or tied worldwide on 18 December 1987. Highest significance: Rhinelander, US.

Key Facts for 18 December 1987

On 18 December 1987, 1,505 weather records were set or tied at long-record stations worldwide.
817 were record highs and 58 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 58 monthly and 1,447 daily.
Rhinelander set a monthly record daily precipitation of 50.8 mm (2.0 in) on 18 December 1987.
Across 156 earlier years (1793 to 2025) the same calendar date averaged 473 records.

Record Map

1,505 stations

1,505 station records on 18 December 1987 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 December 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rhinelander	United States	Record daily precipitation	50.8 mm (2.0 in)	73 of 100 (Major)
San Simon	United States	Record daily precipitation	46.2 mm (1.8 in)	67 of 100 (Major)
Kukuiula 935	United States	Record daily precipitation	97.3 mm (3.8 in)	64 of 100 (Major)
Koloa 936	United States	Record daily precipitation	99.6 mm (3.9 in)	58 of 100 (Notable)
Lihue 1020	United States	Record daily precipitation	110.5 mm (4.4 in)	58 of 100 (Notable)
Mairinque	Brazil	Record daily precipitation	127.7 mm (5.0 in)	56 of 100 (Notable)
Wichita Mtn Wr	United States	Record daily precipitation	50.8 mm (2.0 in)	56 of 100 (Notable)
Angatuba	Brazil	Record daily precipitation	101.8 mm (4.0 in)	55 of 100 (Notable)
Waco 4N	United States	Record snow depth	15.2 cm (6.0 in)	55 of 100 (Notable)
Puhi 1013	United States	Record daily precipitation	115.6 mm (4.6 in)	55 of 100 (Notable)
Ponca City Muni AP	United States	Record snow depth	15.2 cm (6.0 in)	55 of 100 (Notable)
Tombstone	United States	Record daily precipitation	45.7 mm (1.8 in)	54 of 100 (Notable)
Eleele 927	United States	Record daily precipitation	94.7 mm (3.7 in)	54 of 100 (Notable)
Halenanaho 1006	United States	Record daily precipitation	118.1 mm (4.6 in)	54 of 100 (Notable)
Brydeswood STN 985	United States	Record daily precipitation	100.3 mm (3.9 in)	53 of 100 (Notable)
Wahiawa 930	United States	Record daily precipitation	94.5 mm (3.7 in)	53 of 100 (Notable)
W Lawai 931	United States	Record daily precipitation	96.0 mm (3.8 in)	53 of 100 (Notable)
Helena 1 SSE	United States	Record snow depth	35.6 cm (14.0 in)	52 of 100 (Notable)
Mound Valley 3 WSW	United States	Record snow depth	20.3 cm (8.0 in)	51 of 100 (Notable)
Dresden-Hosterwitz	Germany	Record daily precipitation	27.3 mm (1.1 in)	50 of 100 (Notable)
Bowie	United States	Record daily precipitation	43.2 mm (1.7 in)	50 of 100 (Notable)
Claude	United States	Record snow depth	20.3 cm (8.0 in)	49 of 100 (Notable)
Mutual	United States	Record snow depth	20.3 cm (8.0 in)	48 of 100 (Notable)
Warruwi	Australia	Record daily precipitation	108.8 mm (4.3 in)	47 of 100 (Notable)
Chiricahua Nm	United States	Record daily precipitation	73.7 mm (2.9 in)	46 of 100 (Notable)
Hohenpeissenberg	Germany	Record daily precipitation	28.0 mm (1.1 in)	45 of 100 (Notable)
Weismain	Germany	Record daily precipitation	35.4 mm (1.4 in)	45 of 100 (Notable)
Nueva Esperanza	Mexico	Record high minimum temperature	27.8 C (82.0 F)	45 of 100 (Notable)
Valencia Estates	South Africa	Record daily precipitation	105.0 mm (4.1 in)	45 of 100 (Notable)
Rolla Missouri S&T	United States	Record snow depth	15.2 cm (6.0 in)	45 of 100 (Notable)
Coloso	Puerto Rico [United States]	Record low minimum temperature	11.1 C (52.0 F)	44 of 100 (Notable)
Fall Rvr Lake	United States	Record snow depth	10.2 cm (4.0 in)	44 of 100 (Notable)
Maramec	United States	Record snow depth	17.8 cm (7.0 in)	44 of 100 (Notable)
San Juan del Mezquital	Mexico	Record daily precipitation	41.9 mm (1.6 in)	43 of 100 (Notable)
Higgins	United States	Record snow depth	20.3 cm (8.0 in)	43 of 100 (Notable)
Perryton	United States	Record snow depth	22.9 cm (9.0 in)	43 of 100 (Notable)
Ilhota-Jusante	Brazil	Record daily precipitation	55.2 mm (2.2 in)	42 of 100 (Notable)
Bom Retiro	Brazil	Record daily precipitation	78.4 mm (3.1 in)	42 of 100 (Notable)
Marienberg-Reitzenhain	Germany	Record daily precipitation	36.3 mm (1.4 in)	42 of 100 (Notable)
Eldorado Springs	United States	Record snow depth	22.9 cm (9.0 in)	42 of 100 (Notable)
Ibiuna	Brazil	Record daily precipitation	125.2 mm (4.9 in)	41 of 100 (Notable)
Tres Piedras	United States	Record daily snowfall	15.2 cm (6.0 in)	41 of 100 (Notable)
Amarillo	United States	Record snow depth	17.8 cm (7.0 in)	41 of 100 (Notable)
Breckenridge	United States	Record daily precipitation	43.7 mm (1.7 in)	40 of 100 (Notable)
Uccle	Belgium	Record high minimum temperature	10.3 C (50.5 F)	39 of 100 (Notable)
Trier	Germany	Record high minimum temperature	12.0 C (53.6 F)	39 of 100 (Notable)
Trier-Zewen	Germany	Record high minimum temperature	12.0 C (53.6 F)	39 of 100 (Notable)
Zwieselberg	Germany	Record daily precipitation	51.2 mm (2.0 in)	39 of 100 (Notable)
Tucson Magnetic Obsy	United States	Record daily precipitation	29.5 mm (1.2 in)	39 of 100 (Notable)
Joplin Rgnl AP	United States	Record snow depth	17.8 cm (7.0 in)	39 of 100 (Notable)
Bourke Post Office	Australia	Record daily precipitation	31.6 mm (1.2 in)	38 of 100 (Notable)
Passau-Maierhof	Germany	Record daily precipitation	27.1 mm (1.1 in)	38 of 100 (Notable)
Schierke	Germany	Record high minimum temperature	5.5 C (41.9 F)	38 of 100 (Notable)
Concordia	United States	Record snow depth	25.4 cm (10.0 in)	38 of 100 (Notable)
Los Alamos	United States	Record daily snowfall	15.2 cm (6.0 in)	38 of 100 (Notable)
Miandetta (Tyrone)	Australia	Record daily precipitation	31.0 mm (1.2 in)	37 of 100 (Notable)
Kremsmuenster	Austria	Record high maximum temperature	11.8 C (53.2 F)	37 of 100 (Notable)
Jena Sternwarte	Germany	Record high maximum temperature	15.7 C (60.3 F)	37 of 100 (Notable)
Neudenau	Germany	Record daily precipitation	33.9 mm (1.3 in)	37 of 100 (Notable)
Marienberg	Germany	Record daily precipitation	25.5 mm (1.0 in)	37 of 100 (Notable)

Counts by Type and Timescale

1,505 records

Records set or tied on 18 December 1987 by type: Highest daily maximum 419, Lowest daily maximum 36, Highest daily minimum 398, Lowest daily minimum 22, Heaviest daily rainfall 426, Heaviest daily snowfall 52, Deepest snow cover 152.

Records on 18 December 1987 by type
Record type	Records
Highest daily maximum	419
Lowest daily maximum	36
Highest daily minimum	398
Lowest daily minimum	22
Heaviest daily rainfall	426
Heaviest daily snowfall	52
Deepest snow cover	152

Records on 18 December 1987 by timescale: all-time 0, monthly 58, daily 1,447.

How Much Records Were Beaten By

1,336 broken records

Margins by which the 1,336 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 229.0. Ties are not counted.

Top 20 by Significance

18 December 1987

Top 20 records on 18 December 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 December 1987	Rhinelander, US	monthly rain	50.8 mm (2.0 in)	21.3 mm (0.8 in)	47 years	73 of 100 (Major)
18 December 1987	San Simon, US	monthly rain	46.2 mm (1.8 in)	18.8 mm (0.7 in)	52 years	67 of 100 (Major)
18 December 1987	Kukuiula 935, US	daily rain	97.3 mm (3.8 in)	56.7 mm (2.2 in)	70 years	64 of 100 (Major)
18 December 1987	Koloa 936, US	daily rain	99.6 mm (3.9 in)	67.6 mm (2.7 in)	33 years	58 of 100 (Notable)
18 December 1987	Lihue 1020, US	daily rain	110.5 mm (4.4 in)	65.5 mm (2.6 in)	37 years	58 of 100 (Notable)
18 December 1987	Mairinque, BR	daily rain	127.7 mm (5.0 in)	100.7 mm (4.0 in)	40 years	56 of 100 (Notable)
18 December 1987	Wichita Mtn Wr, US	daily rain	50.8 mm (2.0 in)	43.2 mm (1.7 in)	52 years	56 of 100 (Notable)
18 December 1987	Angatuba, BR	daily rain	101.8 mm (4.0 in)	69.8 mm (2.7 in)	38 years	55 of 100 (Notable)
18 December 1987	Waco 4N, US	daily snow depth	15.2 cm (6.0 in)	15.2 cm (6.0 in)	38 years	55 of 100 (Notable)
18 December 1987	Puhi 1013, US	daily rain	115.6 mm (4.6 in)	75.0 mm (3.0 in)	36 years	55 of 100 (Notable)
18 December 1987	Ponca City Muni AP, US	daily snow depth	15.2 cm (6.0 in)	15.2 cm (6.0 in)	38 years	55 of 100 (Notable)
18 December 1987	Tombstone, US	monthly rain	45.7 mm (1.8 in)	9.6 mm (0.38 in)	72 years	54 of 100 (Notable)
18 December 1987	Eleele 927, US	daily rain	94.7 mm (3.7 in)	60.4 mm (2.4 in)	37 years	54 of 100 (Notable)
18 December 1987	Halenanaho 1006, US	daily rain	118.1 mm (4.6 in)	71.6 mm (2.8 in)	36 years	54 of 100 (Notable)
18 December 1987	Brydeswood STN 985, US	daily rain	100.3 mm (3.9 in)	69.1 mm (2.7 in)	36 years	53 of 100 (Notable)
18 December 1987	Wahiawa 930, US	daily rain	94.5 mm (3.7 in)	62.7 mm (2.5 in)	36 years	53 of 100 (Notable)
18 December 1987	W Lawai 931, US	daily rain	96.0 mm (3.8 in)	62.5 mm (2.5 in)	36 years	53 of 100 (Notable)
18 December 1987	Helena 1 SSE, US	daily snow depth	35.6 cm (14.0 in)	22.9 cm (9.0 in)	14 years	52 of 100 (Notable)
18 December 1987	Mound Valley 3 WSW, US	daily snow depth	20.3 cm (8.0 in)	20.3 cm (8.0 in)	36 years	51 of 100 (Notable)
18 December 1987	Dresden-Hosterwitz, DE	daily rain	27.3 mm (1.1 in)	16.8 mm (0.7 in)	21 years	50 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 1987

Records set or tied on this calendar date in each year from 1793 to 1987. 1987 had 1,505 records.

Counts for years before the ledger starts come from the same station rules.

Records on 12-18 in each year
Year	Records
1793	1
1796	1
1805	1
1814	1
1825	1
1846	1
1849	1
1852	2
1858	1
1859	4
1862	2
1864	1
1868	1
1873	1
1875	1
1876	2
1878	1
1881	2
1882	1
1884	2
1886	1
1887	1
1888	1
1889	4
1890	5
1892	4
1894	8
1895	1
1897	4
1898	9
1899	3
1900	2
1901	6
1902	33
1903	11
1904	25
1905	3
1906	21
1907	15
1908	16
1909	18
1910	19
1911	9
1912	33
1913	38
1914	20
1915	28
1916	57
1917	62
1918	21
1919	117
1920	77
1921	123
1922	108
1923	378
1924	480
1925	74
1926	173
1927	151
1928	165
1929	366
1930	230
1931	360
1932	353
1933	506
1934	209
1935	138
1936	466
1937	459
1938	185
1939	900
1940	242
1941	213
1942	281
1943	419
1944	191
1945	598
1946	199
1947	266
1948	354
1949	561
1950	289
1951	867
1952	450
1953	373
1954	507
1955	611
1956	333
1957	901
1958	524
1959	477
1960	477
1961	885
1962	759
1963	571
1964	840
1965	402
1966	644
1967	1,105
1968	488
1969	376
1970	502
1971	387
1972	375
1973	1,008
1974	229
1975	625
1976	459
1977	992
1978	946
1979	1,087
1980	772
1981	1,362
1982	537
1983	2,014
1984	1,439
1985	1,384
1986	875
1987	1,505
1988	1,061
1989	1,818
1990	1,367
1991	756
1992	1,045
1993	697
1994	643
1995	1,065
1996	1,833
1997	1,195
1998	863
1999	923
2000	1,572
2001	906
2002	1,437
2003	987
2004	506
2005	987
2006	1,167
2007	746
2008	1,014
2009	1,253
2010	1,322
2011	697
2012	729
2013	513
2014	556
2015	1,254
2016	1,821
2017	516
2018	464
2019	679
2020	326
2021	762
2022	536
2023	1,293
2024	780
2025	994

Download the Data

Data for records on 1987-12-18: 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	1,250
50 to 100	59
100 to 150	15
150 to 200	9
200 to 250	3