Weather Records on 12 December 1987

468 weather records were set or tied worldwide on 12 December 1987. Highest significance: Keams Canyon, US.

Key Facts for 12 December 1987

On 12 December 1987, 468 weather records were set or tied at long-record stations worldwide.
226 were record highs and 65 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 22 monthly and 445 daily.
Keams Canyon set a daily record precipitation of 38.1 mm (1.5 in) on 12 December 1987.
Across 153 earlier years (1796 to 2025) the same calendar date averaged 469 records.

Record Map

468 stations

468 station records on 12 December 1987 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 December 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
Keams Canyon	United States	Record daily precipitation	38.1 mm (1.5 in)	69 of 100 (Major)
Manoa 712.1	United States	Record daily precipitation	144.0 mm (5.7 in)	67 of 100 (Major)
Kaneohe Mauka 781	United States	Record daily precipitation	144.8 mm (5.7 in)	57 of 100 (Notable)
Hilo Intl AP 87	United States	Record daily precipitation	166.6 mm (6.6 in)	52 of 100 (Notable)
Pauoa Flats 784	United States	Record daily precipitation	191.5 mm (7.5 in)	51 of 100 (Notable)
Wilhelmina Rise 721	United States	Record daily precipitation	170.2 mm (6.7 in)	51 of 100 (Notable)
Mendonca	Brazil	Record daily precipitation	84.6 mm (3.3 in)	50 of 100 (Notable)
Molokai Kaunakakai Molokai AP	United States	Record daily precipitation	110.5 mm (4.4 in)	50 of 100 (Notable)
Kalihi Rsch Site 777	United States	Record daily precipitation	159.0 mm (6.3 in)	47 of 100 (Notable)
Kekaha 944	United States	Record daily precipitation	57.2 mm (2.3 in)	47 of 100 (Notable)
Kahului AP	United States	Record daily precipitation	80.8 mm (3.2 in)	47 of 100 (Notable)
Kaneohe Bay MCAS	United States	Record daily precipitation	125.5 mm (4.9 in)	47 of 100 (Notable)
Carmichael (Tnk)	South Africa	Record daily precipitation	63.5 mm (2.5 in)	45 of 100 (Notable)
Machias	United States	Record daily snowfall	10.2 cm (4.0 in)	45 of 100 (Notable)
Punchbowl Crater 709	United States	Record daily precipitation	66.0 mm (2.6 in)	45 of 100 (Notable)
Eastport	United States	Record daily snowfall	16.5 cm (6.5 in)	44 of 100 (Notable)
Koloko Rsvr 1137	United States	Record daily precipitation	67.8 mm (2.7 in)	44 of 100 (Notable)
Songli	Norway	Record daily precipitation	47.9 mm (1.9 in)	43 of 100 (Notable)
Utah Lake Lehi	United States	Record daily snowfall	10.2 cm (4.0 in)	43 of 100 (Notable)
Maxwell 3 NW	United States	Record daily snowfall	10.2 cm (4.0 in)	42 of 100 (Notable)
Honolulu Intl AP	United States	Record daily precipitation	200.4 mm (7.9 in)	40 of 100 (Notable)
Wessington Springs	United States	Record high minimum temperature	0.0 C (32.0 F)	39 of 100 (Notable)
Naalehu 14	United States	Record daily precipitation	66.0 mm (2.6 in)	38 of 100 (Notable)
Maxwell 3 NW	United States	Record snow depth	10.2 cm (4.0 in)	37 of 100 (Notable)
Moanalua 770	United States	Record daily precipitation	106.7 mm (4.2 in)	37 of 100 (Notable)
Bon Accord Dam	South Africa	Record daily precipitation	40.0 mm (1.6 in)	36 of 100 (Notable)
Meade	United States	Record high minimum temperature	2.2 C (36.0 F)	36 of 100 (Notable)
Fantan	Armenia	Record daily precipitation	26.4 mm (1.0 in)	34 of 100 (Routine)
Stephan 2 NW	United States	Record high minimum temperature	-3.3 C (26.1 F)	34 of 100 (Routine)
Waialae-Kahala 715	United States	Record daily precipitation	69.6 mm (2.7 in)	34 of 100 (Routine)
Cedar Butte	United States	Record high maximum temperature	21.1 C (70.0 F)	33 of 100 (Routine)
Vaernes	Norway	Record daily precipitation	29.7 mm (1.2 in)	32 of 100 (Routine)
Palolo Vly 718	United States	Record daily precipitation	181.4 mm (7.1 in)	32 of 100 (Routine)
Amberd (Koshabulakh)	Armenia	Record daily precipitation	39.2 mm (1.5 in)	31 of 100 (Routine)
Barra Do Funchal	Brazil	Record daily precipitation	95.0 mm (3.7 in)	31 of 100 (Routine)
Corozal Substn	Puerto Rico [United States]	Record high maximum temperature	33.3 C (91.9 F)	31 of 100 (Routine)
Tomsk	Russia	Record high minimum temperature	-3.4 C (25.9 F)	31 of 100 (Routine)
Mc Henry 3W	United States	Record high minimum temperature	-5.0 C (23.0 F)	31 of 100 (Routine)
Manoa Tun 2 716	United States	Record daily precipitation	196.6 mm (7.7 in)	31 of 100 (Routine)
Nuuanu Rsch 4 783	United States	Record daily precipitation	196.6 mm (7.7 in)	31 of 100 (Routine)
Castilho	Brazil	Record daily precipitation	67.4 mm (2.7 in)	30 of 100 (Routine)
Presa Parral	Mexico	Record high minimum temperature	10.6 C (51.1 F)	30 of 100 (Routine)
Guadalajara (Dge)	Mexico	Record low maximum temperature	16.7 C (62.1 F)	30 of 100 (Routine)
Rindal	Norway	Record daily precipitation	32.1 mm (1.3 in)	30 of 100 (Routine)
Artesia 6S	United States	Record high maximum temperature	28.3 C (82.9 F)	30 of 100 (Routine)
Chaco Canyon Natl Mon	United States	Record daily snowfall	5.1 cm (2.0 in)	30 of 100 (Routine)
Grandfalls 3SSE	United States	Record high maximum temperature	29.4 C (84.9 F)	30 of 100 (Routine)
Kaneohe Mauka 781	United States	Record low maximum temperature	20.0 C (68.0 F)	30 of 100 (Routine)
Waimea 947	United States	Record daily precipitation	50.8 mm (2.0 in)	30 of 100 (Routine)
Hartbeespoort Dam (Irr)	South Africa	Record daily precipitation	35.5 mm (1.4 in)	29 of 100 (Routine)
Hatchville	United States	Record daily precipitation	35.6 mm (1.4 in)	29 of 100 (Routine)
Brackettville	United States	Record high maximum temperature	27.8 C (82.0 F)	29 of 100 (Routine)
Antonio Escobedo (Smn)	Mexico	Record low maximum temperature	15.0 C (59.0 F)	28 of 100 (Routine)
Rooijantjiesfontein	South Africa	Record daily precipitation	44.0 mm (1.7 in)	28 of 100 (Routine)
Lybrook	United States	Record daily snowfall	15.2 cm (6.0 in)	28 of 100 (Routine)
Nagqu	China	Record high maximum temperature	11.8 C (53.2 F)	27 of 100 (Routine)
Uruapan (Smn)	Mexico	Record high minimum temperature	15.0 C (59.0 F)	27 of 100 (Routine)
Alkmaar	South Africa	Record daily precipitation	39.5 mm (1.6 in)	27 of 100 (Routine)
Illawarra	South Africa	Record daily precipitation	36.0 mm (1.4 in)	27 of 100 (Routine)
Los Alamos	United States	Record daily snowfall	11.4 cm (4.5 in)	27 of 100 (Routine)

Counts by Type and Timescale

468 records

Records set or tied on 12 December 1987 by type: Highest daily maximum 103, Lowest daily maximum 39, Highest daily minimum 123, Lowest daily minimum 26, Heaviest daily rainfall 151, Heaviest daily snowfall 20, Deepest snow cover 6.

Records on 12 December 1987 by type
Record type	Records
Highest daily maximum	103
Lowest daily maximum	39
Highest daily minimum	123
Lowest daily minimum	26
Heaviest daily rainfall	151
Heaviest daily snowfall	20
Deepest snow cover	6

Records on 12 December 1987 by timescale: all-time 1, monthly 22, daily 445.

How Much Records Were Beaten By

368 broken records

Margins by which the 368 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 152.0. Ties are not counted.

Top 20 by Significance

12 December 1987

Top 20 records on 12 December 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 December 1987	Keams Canyon, US	daily rain	38.1 mm (1.5 in)	33.0 mm (1.3 in)	68 years	69 of 100 (Major)
12 December 1987	Manoa 712.1, US	daily rain	144.0 mm (5.7 in)	74.7 mm (2.9 in)	65 years	67 of 100 (Major)
12 December 1987	Kaneohe Mauka 781, US	daily rain	144.8 mm (5.7 in)	67.3 mm (2.6 in)	49 years	57 of 100 (Notable)
12 December 1987	Hilo Intl AP 87, US	daily rain	166.6 mm (6.6 in)	107.7 mm (4.2 in)	32 years	52 of 100 (Notable)
12 December 1987	Pauoa Flats 784, US	daily rain	191.5 mm (7.5 in)	104.6 mm (4.1 in)	26 years	51 of 100 (Notable)
12 December 1987	Wilhelmina Rise 721, US	daily rain	170.2 mm (6.7 in)	132.1 mm (5.2 in)	26 years	51 of 100 (Notable)
12 December 1987	Mendonca, BR	daily rain	84.6 mm (3.3 in)	66.5 mm (2.6 in)	32 years	50 of 100 (Notable)
12 December 1987	Molokai Kaunakakai Molokai AP, US	daily rain	110.5 mm (4.4 in)	71.6 mm (2.8 in)	24 years	50 of 100 (Notable)
12 December 1987	Kalihi Rsch Site 777, US	daily rain	159.0 mm (6.3 in)	76.7 mm (3.0 in)	24 years	47 of 100 (Notable)
12 December 1987	Kekaha 944, US	daily rain	57.2 mm (2.3 in)	34.6 mm (1.4 in)	80 years	47 of 100 (Notable)
12 December 1987	Kahului AP, US	daily rain	80.8 mm (3.2 in)	56.9 mm (2.2 in)	4 years	47 of 100 (Notable)
12 December 1987	Kaneohe Bay MCAS, US	monthly rain	125.5 mm (4.9 in)	33.6 mm (1.3 in)	7 years	47 of 100 (Notable)
12 December 1987	Carmichael (Tnk), ZA	daily rain	63.5 mm (2.5 in)	33.0 mm (1.3 in)	48 years	45 of 100 (Notable)
12 December 1987	Machias, US	daily snowfall	10.2 cm (4.0 in)	5.1 cm (2.0 in)	93 years	45 of 100 (Notable)
12 December 1987	Punchbowl Crater 709, US	daily rain	66.0 mm (2.6 in)	51.8 mm (2.0 in)	36 years	45 of 100 (Notable)
12 December 1987	Eastport, US	daily snowfall	16.5 cm (6.5 in)	6.8 cm (2.7 in)	81 years	44 of 100 (Notable)
12 December 1987	Koloko Rsvr 1137, US	daily rain	67.8 mm (2.7 in)	52.6 mm (2.1 in)	40 years	44 of 100 (Notable)
12 December 1987	Songli, NO	daily rain	47.9 mm (1.9 in)	33.6 mm (1.3 in)	6 years	43 of 100 (Notable)
12 December 1987	Utah Lake Lehi, US	daily snowfall	10.2 cm (4.0 in)	7.7 cm (3.0 in)	60 years	43 of 100 (Notable)
12 December 1987	Maxwell 3 NW, US	daily snowfall	10.2 cm (4.0 in)	7.7 cm (3.0 in)	66 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

1796 to 1987

Records set or tied on this calendar date in each year from 1796 to 1987. 1987 had 468 records.

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

Records on 12-12 in each year
Year	Records
1796	2
1798	1
1802	1
1808	2
1814	1
1825	2
1831	1
1835	2
1846	1
1855	2
1861	1
1863	3
1870	2
1871	5
1873	2
1879	2
1882	3
1887	1
1889	1
1891	2
1892	2
1893	8
1894	3
1895	1
1896	4
1897	3
1898	20
1899	11
1900	5
1901	4
1902	7
1903	18
1904	20
1905	10
1906	14
1907	8
1908	25
1909	20
1910	39
1911	104
1912	53
1913	20
1914	19
1915	46
1916	115
1917	246
1918	33
1919	23
1920	41
1921	63
1922	61
1923	91
1924	130
1925	75
1926	143
1927	335
1928	234
1929	405
1930	45
1931	522
1932	813
1933	358
1934	430
1935	266
1936	142
1937	468
1938	103
1939	418
1940	621
1941	260
1942	257
1943	165
1944	688
1945	212
1946	761
1947	295
1948	282
1949	789
1950	364
1951	175
1952	501
1953	288
1954	696
1955	381
1956	441
1957	1,118
1958	884
1959	464
1960	710
1961	1,481
1962	1,495
1963	439
1964	459
1965	1,045
1966	369
1967	565
1968	727
1969	499
1970	366
1971	585
1972	1,669
1973	397
1974	191
1975	492
1976	319
1977	907
1978	382
1979	1,016
1980	583
1981	734
1982	867
1983	816
1984	808
1985	1,384
1986	408
1987	468
1988	1,030
1989	930
1990	676
1991	1,980
1992	818
1993	887
1994	1,172
1995	2,030
1996	1,391
1997	869
1998	1,103
1999	952
2000	2,510
2001	700
2002	683
2003	537
2004	727
2005	769
2006	886
2007	1,315
2008	1,424
2009	818
2010	1,501
2011	621
2012	684
2013	646
2014	1,040
2015	1,496
2016	530
2017	808
2018	256
2019	418
2020	507
2021	441
2022	767
2023	544
2024	328
2025	1,485

Download the Data

Data for records on 1987-12-12: 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 20	321
20 to 40	19
40 to 60	10
60 to 80	10
80 to 100	1
100 to 120	4
120 to 140	2
140 to 160	1