Weather Records on 8 December 1966

1,255 weather records were set or tied worldwide on 8 December 1966. Highest significance: Hillsboro, US.

Key Facts for 8 December 1966

On 8 December 1966, 1,255 weather records were set or tied at long-record stations worldwide.
803 were record highs and 48 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 168 monthly and 1,087 daily.
Hillsboro set a monthly record daily precipitation of 94.5 mm (3.7 in) on 8 December 1966.
Across 151 earlier years (1796 to 2025) the same calendar date averaged 509 records.

Record Map

1,255 stations

1,255 station records on 8 December 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 8 December 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hillsboro	United States	Record daily precipitation	94.5 mm (3.7 in)	72 of 100 (Major)
Columbus Junction	United States	Record daily precipitation	36.8 mm (1.4 in)	61 of 100 (Major)
Davenport L&D 15	United States	Record daily precipitation	44.5 mm (1.8 in)	61 of 100 (Major)
Mio Hydro Plt	United States	Record daily precipitation	28.4 mm (1.1 in)	60 of 100 (Major)
Crawfordsville Pwr Plt	United States	Record daily precipitation	58.2 mm (2.3 in)	59 of 100 (Notable)
Montpelier	United States	Record daily precipitation	48.5 mm (1.9 in)	59 of 100 (Notable)
Pontiac	United States	Record daily precipitation	43.4 mm (1.7 in)	58 of 100 (Notable)
Monticello	United States	Record daily precipitation	47.5 mm (1.9 in)	58 of 100 (Notable)
Defiance	United States	Record daily precipitation	69.6 mm (2.7 in)	58 of 100 (Notable)
Huntington	United States	Record daily precipitation	46.7 mm (1.8 in)	57 of 100 (Notable)
Bowling Green Wwtp	United States	Record daily precipitation	52.1 mm (2.1 in)	57 of 100 (Notable)
Scottville 1 NE	United States	Record daily precipitation	33.5 mm (1.3 in)	56 of 100 (Notable)
Plymouth Wwtp	United States	Record daily precipitation	32.5 mm (1.3 in)	55 of 100 (Notable)
Wauseon Wtp	United States	Record daily precipitation	48.0 mm (1.9 in)	54 of 100 (Notable)
Valparaiso Wtr Wks	United States	Record daily precipitation	39.4 mm (1.6 in)	52 of 100 (Notable)
Tripoli City	Libya	Record daily precipitation	83.1 mm (3.3 in)	51 of 100 (Notable)
Rochester	United States	Record daily precipitation	62.2 mm (2.4 in)	51 of 100 (Notable)
Versailles	United States	Record daily precipitation	41.7 mm (1.6 in)	50 of 100 (Notable)
Logansport Cicott St	United States	Record daily precipitation	81.3 mm (3.2 in)	46 of 100 (Notable)
Wabash	United States	Record daily precipitation	59.2 mm (2.3 in)	46 of 100 (Notable)
Stoughton Wwtp	United States	Record daily precipitation	26.7 mm (1.1 in)	46 of 100 (Notable)
Toronto	Canada	Record high maximum temperature	15.6 C (60.1 F)	45 of 100 (Notable)
Paulding	United States	Record daily precipitation	36.8 mm (1.4 in)	45 of 100 (Notable)
Palmwoods Post Office	Australia	Record daily precipitation	114.3 mm (4.5 in)	44 of 100 (Notable)
Toronto	Canada	Record high minimum temperature	10.0 C (50.0 F)	44 of 100 (Notable)
Houghton Lake 6 WSW	United States	Record daily precipitation	33.3 mm (1.3 in)	44 of 100 (Notable)
Danville	United States	Record daily precipitation	46.2 mm (1.8 in)	43 of 100 (Notable)
Belleville	Canada	Record high maximum temperature	13.3 C (55.9 F)	42 of 100 (Notable)
Peterborough	Canada	Record high minimum temperature	9.4 C (48.9 F)	42 of 100 (Notable)
Wapello	United States	Record daily precipitation	29.0 mm (1.1 in)	42 of 100 (Notable)
Woodstock	Canada	Record high minimum temperature	11.1 C (52.0 F)	41 of 100 (Notable)
Kankakee 3 SW	United States	Record daily precipitation	39.9 mm (1.6 in)	41 of 100 (Notable)
Huntington	United States	Record high minimum temperature	13.3 C (55.9 F)	41 of 100 (Notable)
Marion 2 N	United States	Record high minimum temperature	13.3 C (55.9 F)	41 of 100 (Notable)
Put-In-Bay	United States	Record daily precipitation	38.1 mm (1.5 in)	40 of 100 (Notable)
Windsor	United States	Record high maximum temperature	22.8 C (73.0 F)	39 of 100 (Notable)
Hettinger	United States	Record daily snowfall	5.1 cm (2.0 in)	39 of 100 (Notable)
Norwalk Wwtp	United States	Record high minimum temperature	13.3 C (55.9 F)	38 of 100 (Notable)
Brookings 2 NE	United States	Record daily snowfall	12.7 cm (5.0 in)	38 of 100 (Notable)
Mabel Downs	Australia	Record daily precipitation	71.1 mm (2.8 in)	37 of 100 (Notable)
Lucknow	Canada	Record high maximum temperature	16.1 C (61.0 F)	37 of 100 (Notable)
Albion 5 E	United States	Record daily precipitation	57.2 mm (2.3 in)	37 of 100 (Notable)
Frankfort Disposal	United States	Record daily precipitation	43.7 mm (1.7 in)	37 of 100 (Notable)
Windom	United States	Record daily snowfall	10.2 cm (4.0 in)	37 of 100 (Notable)
Kalama 5 ENE	United States	Record daily snowfall	6.4 cm (2.5 in)	37 of 100 (Notable)
Williston Sloulin Fld	United States	Record daily snowfall	7.1 cm (2.8 in)	37 of 100 (Notable)
Palestine	United States	Record daily precipitation	52.1 mm (2.1 in)	36 of 100 (Notable)
Decatur 1 N	United States	Record daily precipitation	25.9 mm (1.0 in)	36 of 100 (Notable)
Steffenville	United States	Record daily precipitation	32.0 mm (1.3 in)	36 of 100 (Notable)
Vida 6 NE	United States	Record daily snowfall	10.2 cm (4.0 in)	36 of 100 (Notable)
Alexandria	United States	Record daily snowfall	8.9 cm (3.5 in)	36 of 100 (Notable)
Mt Clemens Ang Base	United States	Record high minimum temperature	11.1 C (52.0 F)	36 of 100 (Notable)
Grimsby	Canada	Record high maximum temperature	18.3 C (64.9 F)	35 of 100 (Notable)
Bancroft	Canada	Record high maximum temperature	12.8 C (55.0 F)	35 of 100 (Notable)
Flora 5 NW	United States	Record daily precipitation	49.8 mm (2.0 in)	35 of 100 (Notable)
Havana	United States	Record daily precipitation	30.0 mm (1.2 in)	35 of 100 (Notable)
Henderson 8 SSW	United States	Record high minimum temperature	16.1 C (61.0 F)	35 of 100 (Notable)
Norwich	United States	Record daily precipitation	25.4 mm (1.0 in)	35 of 100 (Notable)
Assiniboia	Canada	Record low maximum temperature	-21.1 C (-6.0 F)	34 of 100 (Routine)
Guelph Oac	Canada	Record high minimum temperature	10.0 C (50.0 F)	34 of 100 (Routine)

Counts by Type and Timescale

1,255 records

Records set or tied on 8 December 1966 by type: Highest daily maximum 426, Lowest daily maximum 30, Highest daily minimum 377, Lowest daily minimum 18, Heaviest daily rainfall 338, Heaviest daily snowfall 54, Deepest snow cover 12.

Records on 8 December 1966 by type
Record type	Records
Highest daily maximum	426
Lowest daily maximum	30
Highest daily minimum	377
Lowest daily minimum	18
Heaviest daily rainfall	338
Heaviest daily snowfall	54
Deepest snow cover	12

Records on 8 December 1966 by timescale: all-time 0, monthly 168, daily 1,087.

How Much Records Were Beaten By

985 broken records

Margins by which the 985 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 127.0. Ties are not counted.

Top 20 by Significance

8 December 1966

Top 20 records on 8 December 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
8 December 1966	Hillsboro, US	monthly rain	94.5 mm (3.7 in)	32.3 mm (1.3 in)	64 years	72 of 100 (Major)
8 December 1966	Columbus Junction, US	daily rain	36.8 mm (1.4 in)	30.4 mm (1.2 in)	52 years	61 of 100 (Major)
8 December 1966	Davenport L&D 15, US	daily rain	44.5 mm (1.8 in)	37.1 mm (1.5 in)	52 years	61 of 100 (Major)
8 December 1966	Mio Hydro Plt, US	daily rain	28.4 mm (1.1 in)	18.2 mm (0.7 in)	48 years	60 of 100 (Major)
8 December 1966	Crawfordsville Pwr Plt, US	daily rain	58.2 mm (2.3 in)	32.8 mm (1.3 in)	64 years	59 of 100 (Notable)
8 December 1966	Montpelier, US	daily rain	48.5 mm (1.9 in)	28.2 mm (1.1 in)	59 years	59 of 100 (Notable)
8 December 1966	Pontiac, US	daily rain	43.4 mm (1.7 in)	30.7 mm (1.2 in)	49 years	58 of 100 (Notable)
8 December 1966	Monticello, US	daily rain	47.5 mm (1.9 in)	32.0 mm (1.3 in)	49 years	58 of 100 (Notable)
8 December 1966	Defiance, US	monthly rain	69.6 mm (2.7 in)	21.8 mm (0.9 in)	34 years	58 of 100 (Notable)
8 December 1966	Huntington, US	daily rain	46.7 mm (1.8 in)	26.4 mm (1.0 in)	48 years	57 of 100 (Notable)
8 December 1966	Bowling Green Wwtp, US	daily rain	52.1 mm (2.1 in)	26.7 mm (1.1 in)	41 years	57 of 100 (Notable)
8 December 1966	Scottville 1 NE, US	daily rain	33.5 mm (1.3 in)	27.9 mm (1.1 in)	39 years	56 of 100 (Notable)
8 December 1966	Plymouth Wwtp, US	daily rain	32.5 mm (1.3 in)	21.8 mm (0.9 in)	41 years	55 of 100 (Notable)
8 December 1966	Wauseon Wtp, US	daily rain	48.0 mm (1.9 in)	24.9 mm (1.0 in)	41 years	54 of 100 (Notable)
8 December 1966	Valparaiso Wtr Wks, US	daily rain	39.4 mm (1.6 in)	23.7 mm (0.9 in)	49 years	52 of 100 (Notable)
8 December 1966	Tripoli City, LY	daily rain	83.1 mm (3.3 in)	61.0 mm (2.4 in)	24 years	51 of 100 (Notable)
8 December 1966	Rochester, US	daily rain	62.2 mm (2.4 in)	52.3 mm (2.1 in)	19 years	51 of 100 (Notable)
8 December 1966	Versailles, US	daily rain	41.7 mm (1.6 in)	36.6 mm (1.4 in)	28 years	50 of 100 (Notable)
8 December 1966	Logansport Cicott St, US	monthly rain	81.3 mm (3.2 in)	22.4 mm (0.9 in)	0 years	46 of 100 (Notable)
8 December 1966	Wabash, US	monthly rain	59.2 mm (2.3 in)	16.0 mm (0.6 in)	41 years	46 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 1966

Records set or tied on this calendar date in each year from 1796 to 1966. 1966 had 1,255 records.

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

Records on 12-08 in each year
Year	Records
1796	1
1805	1
1815	2
1824	1
1825	2
1844	2
1846	1
1848	2
1854	1
1856	2
1866	1
1868	3
1869	1
1871	4
1875	2
1879	5
1882	4
1885	1
1886	1
1891	2
1892	1
1894	1
1896	4
1897	14
1898	3
1899	4
1900	6
1901	6
1902	17
1903	2
1904	6
1905	6
1906	39
1907	15
1908	11
1909	20
1910	14
1911	21
1912	33
1913	42
1914	59
1915	67
1916	93
1917	106
1918	27
1919	59
1920	95
1921	53
1922	163
1923	176
1924	399
1925	107
1926	80
1927	593
1928	100
1929	136
1930	421
1931	229
1932	327
1933	109
1934	437
1935	229
1936	138
1937	443
1938	447
1939	643
1940	495
1941	140
1942	481
1943	378
1944	269
1945	323
1946	1,331
1947	293
1948	269
1949	275
1950	859
1951	1,430
1952	539
1953	361
1954	354
1955	199
1956	890
1957	429
1958	794
1959	538
1960	544
1961	289
1962	413
1963	739
1964	375
1965	509
1966	1,255
1967	442
1968	436
1969	617
1970	801
1971	978
1972	1,825
1973	506
1974	631
1975	497
1976	1,130
1977	1,503
1978	2,440
1979	507
1980	1,527
1981	951
1982	835
1983	924
1984	989
1985	1,099
1986	958
1987	733
1988	581
1989	1,426
1990	847
1991	918
1992	689
1993	957
1994	1,178
1995	764
1996	949
1997	1,194
1998	1,348
1999	530
2000	1,056
2001	513
2002	735
2003	862
2004	1,172
2005	2,056
2006	2,166
2007	1,042
2008	924
2009	1,593
2010	1,951
2011	968
2012	724
2013	1,403
2014	404
2015	1,125
2016	594
2017	677
2018	747
2019	623
2020	942
2021	362
2022	682
2023	909
2024	426
2025	986

Download the Data

Data for records on 1966-12-08: 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	917
20 to 40	47
40 to 60	12
60 to 80	5
80 to 100	2
100 to 120	1
120 to 140	1