Weather Records on 31 December 1966

326 weather records were set or tied worldwide on 31 December 1966. Highest significance: Concordia ASOS, US.

Key Facts for 31 December 1966

On 31 December 1966, 326 weather records were set or tied at long-record stations worldwide.
51 were record highs and 80 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 13 monthly and 313 daily.
Concordia ASOS set a daily record snow depth of 25.4 cm (10.0 in) on 31 December 1966.
Across 157 earlier years (1797 to 2025) the same calendar date averaged 488 records.

Record Map

326 stations

326 station records on 31 December 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 December 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Concordia ASOS	United States	Record snow depth	25.4 cm (10.0 in)	55 of 100 (Notable)
Naalehu 14	United States	Record daily precipitation	118.9 mm (4.7 in)	51 of 100 (Notable)
Bhandara	India	Record daily precipitation	40.0 mm (1.6 in)	50 of 100 (Notable)
Manhattan	United States	Record snow depth	25.4 cm (10.0 in)	49 of 100 (Notable)
Ellsworth	United States	Record snow depth	17.8 cm (7.0 in)	47 of 100 (Notable)
Tor Downs	Australia	Record daily precipitation	51.8 mm (2.0 in)	46 of 100 (Notable)
Minneapolis	United States	Record snow depth	25.4 cm (10.0 in)	45 of 100 (Notable)
Alapaha Exp STN	United States	Record daily precipitation	84.3 mm (3.3 in)	44 of 100 (Notable)
Bedford 2 SE	United States	Record daily precipitation	25.4 mm (1.0 in)	44 of 100 (Notable)
Baziya (Bos)	South Africa	Record daily precipitation	79.0 mm (3.1 in)	42 of 100 (Notable)
Harrison	United States	Record snow depth	15.2 cm (6.0 in)	40 of 100 (Notable)
Irvingdale Post Office	Australia	Record daily precipitation	63.5 mm (2.5 in)	39 of 100 (Notable)
Emerson	Canada	Record high minimum temperature	-8.9 C (16.0 F)	37 of 100 (Notable)
Steynsrus (Mun)	South Africa	Record daily precipitation	53.0 mm (2.1 in)	36 of 100 (Notable)
Chorozinho	Brazil	Record daily precipitation	45.3 mm (1.8 in)	35 of 100 (Notable)
Sacaton	United States	Record low maximum temperature	4.4 C (39.9 F)	35 of 100 (Notable)
Whiteriver 1 SW	United States	Record low maximum temperature	-1.7 C (28.9 F)	35 of 100 (Notable)
Alton 1 W	United States	Record snow depth	25.4 cm (10.0 in)	35 of 100 (Notable)
Bjornholt	Norway	Record daily precipitation	25.4 mm (1.0 in)	34 of 100 (Routine)
Lund	United States	Record low maximum temperature	-5.6 C (21.9 F)	34 of 100 (Routine)
Stehekin 4 NW	United States	Record high minimum temperature	7.2 C (45.0 F)	34 of 100 (Routine)
Monsildale	Australia	Record daily precipitation	59.4 mm (2.3 in)	32 of 100 (Routine)
Maryland	Australia	Record daily precipitation	31.5 mm (1.2 in)	32 of 100 (Routine)
Geneva	United States	Record daily precipitation	47.5 mm (1.9 in)	32 of 100 (Routine)
Pearlington	United States	Record daily precipitation	61.7 mm (2.4 in)	32 of 100 (Routine)
Lead	United States	Record daily snowfall	15.2 cm (6.0 in)	32 of 100 (Routine)
Nooitgedacht	South Africa	Record daily precipitation	39.0 mm (1.5 in)	31 of 100 (Routine)
Evergreen	United States	Record daily precipitation	41.9 mm (1.6 in)	31 of 100 (Routine)
Elba	United States	Record daily precipitation	48.3 mm (1.9 in)	30 of 100 (Routine)
San Carlos Rsvr	United States	Record low maximum temperature	3.9 C (39.0 F)	30 of 100 (Routine)
Kvikkjokk-Arrenjarka	Sweden	Record snow depth	104.0 cm (40.9 in)	29 of 100 (Routine)
Mesa	United States	Record low maximum temperature	6.7 C (44.1 F)	29 of 100 (Routine)
Safford	United States	Record low maximum temperature	7.8 C (46.0 F)	29 of 100 (Routine)
Belvidere	United States	Record snow depth	33.0 cm (13.0 in)	29 of 100 (Routine)
Cornwall	United States	Record snow depth	48.3 cm (19.0 in)	29 of 100 (Routine)
Ulamambri Post Office	Australia	Record daily precipitation	53.3 mm (2.1 in)	28 of 100 (Routine)
McPherson	United States	Record snow depth	20.3 cm (8.0 in)	28 of 100 (Routine)
Deadwood	United States	Record daily snowfall	14.7 cm (5.8 in)	28 of 100 (Routine)
Lamar Rs	United States	Record daily snowfall	12.7 cm (5.0 in)	28 of 100 (Routine)
Newton	United States	Record daily precipitation	38.1 mm (1.5 in)	27 of 100 (Routine)
Cawker City	United States	Record snow depth	25.4 cm (10.0 in)	27 of 100 (Routine)
Morrisville 6 SW	United States	Record snow depth	55.9 cm (22.0 in)	27 of 100 (Routine)
Turnu Magurele	Romania	Record low minimum temperature	13.8 C (56.8 F)	26 of 100 (Routine)
Fairbury 7S	United States	Record snow depth	27.9 cm (11.0 in)	26 of 100 (Routine)
Cooperstown	United States	Record snow depth	43.2 cm (17.0 in)	26 of 100 (Routine)
Stehekin 4 NW	United States	Record high maximum temperature	11.1 C (52.0 F)	26 of 100 (Routine)
Glen Innes Post Office	Australia	Record daily precipitation	55.9 mm (2.2 in)	25 of 100 (Routine)
Brantley	United States	Record daily precipitation	50.0 mm (2.0 in)	25 of 100 (Routine)
Kurrowah	Australia	Record daily precipitation	64.5 mm (2.5 in)	24 of 100 (Routine)
Minas Nuevas	Mexico	Record low maximum temperature	15.6 C (60.1 F)	24 of 100 (Routine)
Fredonia	United States	Record low minimum temperature	-21.7 C (-7.1 F)	24 of 100 (Routine)
Mormon Flat	United States	Record low maximum temperature	6.1 C (43.0 F)	24 of 100 (Routine)
Wickenburg	United States	Record low maximum temperature	8.3 C (46.9 F)	24 of 100 (Routine)
Brawley 2 SW	United States	Record low maximum temperature	11.1 C (52.0 F)	24 of 100 (Routine)
Hays 1 S	United States	Record snow depth	20.3 cm (8.0 in)	24 of 100 (Routine)
Chama	United States	Record low maximum temperature	-6.1 C (21.0 F)	24 of 100 (Routine)
Morrisville 6 SW	United States	Record daily snowfall	16.0 cm (6.3 in)	24 of 100 (Routine)
Sundance	United States	Record daily snowfall	17.8 cm (7.0 in)	24 of 100 (Routine)
Huelva	Spain	Record high maximum temperature	22.8 C (73.0 F)	23 of 100 (Routine)
Fredonia	United States	Record low maximum temperature	-3.9 C (25.0 F)	23 of 100 (Routine)

Counts by Type and Timescale

326 records

Records set or tied on 31 December 1966 by type: Highest daily maximum 25, Lowest daily maximum 45, Highest daily minimum 26, Lowest daily minimum 35, Heaviest daily rainfall 122, Heaviest daily snowfall 25, Deepest snow cover 48.

Records on 31 December 1966 by type
Record type	Records
Highest daily maximum	25
Lowest daily maximum	45
Highest daily minimum	26
Lowest daily minimum	35
Heaviest daily rainfall	122
Heaviest daily snowfall	25
Deepest snow cover	48

Records on 31 December 1966 by timescale: all-time 0, monthly 13, daily 313.

How Much Records Were Beaten By

250 broken records

Margins by which the 250 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 153.0. Ties are not counted.

Top 20 by Significance

31 December 1966

Top 20 records on 31 December 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 December 1966	Concordia ASOS, US	daily snow depth	25.4 cm (10.0 in)	15.2 cm (6.0 in)	48 years	55 of 100 (Notable)
31 December 1966	Naalehu 14, US	daily rain	118.9 mm (4.7 in)	56.7 mm (2.2 in)	60 years	51 of 100 (Notable)
31 December 1966	Bhandara, IN	daily rain	40.0 mm (1.6 in)	40.0 mm (1.6 in)	64 years	50 of 100 (Notable)
31 December 1966	Manhattan, US	daily snow depth	25.4 cm (10.0 in)	15.2 cm (6.0 in)	8 years	49 of 100 (Notable)
31 December 1966	Ellsworth, US	daily snow depth	17.8 cm (7.0 in)	12.7 cm (5.0 in)	39 years	47 of 100 (Notable)
31 December 1966	Tor Downs, AU	daily rain	51.8 mm (2.0 in)	38.3 mm (1.5 in)	8 years	46 of 100 (Notable)
31 December 1966	Minneapolis, US	daily snow depth	25.4 cm (10.0 in)	12.7 cm (5.0 in)	48 years	45 of 100 (Notable)
31 December 1966	Alapaha Exp STN, US	daily rain	84.3 mm (3.3 in)	44.9 mm (1.8 in)	39 years	44 of 100 (Notable)
31 December 1966	Bedford 2 SE, US	daily rain	25.4 mm (1.0 in)	15.2 mm (0.6 in)	15 years	44 of 100 (Notable)
31 December 1966	Baziya (Bos), ZA	daily rain	79.0 mm (3.1 in)	47.0 mm (1.9 in)	3 years	42 of 100 (Notable)
31 December 1966	Harrison, US	daily snow depth	15.2 cm (6.0 in)	12.7 cm (5.0 in)	52 years	40 of 100 (Notable)
31 December 1966	Irvingdale Post Office, AU	daily rain	63.5 mm (2.5 in)	33.0 mm (1.3 in)	47 years	39 of 100 (Notable)
31 December 1966	Emerson, CA	daily high min	-8.9 C (16.0 F)	1.7 C (3.1 F)	88 years	37 of 100 (Notable)
31 December 1966	Steynsrus (Mun), ZA	daily rain	53.0 mm (2.1 in)	28.9 mm (1.1 in)	24 years	36 of 100 (Notable)
31 December 1966	Chorozinho, BR	daily rain	45.3 mm (1.8 in)	44.4 mm (1.7 in)	8 years	35 of 100 (Notable)
31 December 1966	Sacaton, US	monthly low max	4.4 C (39.9 F)	2.8 C (5.0 F)	48 years	35 of 100 (Notable)
31 December 1966	Whiteriver 1 SW, US	monthly low max	-1.7 C (28.9 F)	0.6 C (1.1 F)	61 years	35 of 100 (Notable)
31 December 1966	Alton 1 W, US	daily snow depth	25.4 cm (10.0 in)	7.6 cm (3.0 in)	55 years	35 of 100 (Notable)
31 December 1966	Bjornholt, NO	daily rain	25.4 mm (1.0 in)	4.9 mm (0.19 in)	66 years	34 of 100 (Routine)
31 December 1966	Lund, US	daily low max	-5.6 C (21.9 F)	5.6 C (10.1 F)	65 years	34 of 100 (Routine)

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

1797 to 1966

Records set or tied on this calendar date in each year from 1797 to 1966. 1966 had 326 records.

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

Records on 12-31 in each year
Year	Records
1797	1
1799	2
1826	1
1836	1
1842	2
1850	3
1853	1
1854	1
1859	1
1860	1
1867	1
1870	2
1872	2
1874	4
1875	2
1876	2
1878	2
1879	2
1880	2
1882	1
1884	2
1885	1
1886	3
1887	1
1888	2
1890	2
1891	8
1892	4
1895	4
1897	6
1898	5
1899	4
1900	3
1901	16
1902	3
1903	3
1904	11
1905	9
1906	31
1907	11
1908	7
1909	5
1910	25
1911	14
1912	17
1913	46
1914	34
1915	32
1916	25
1917	239
1918	24
1919	38
1920	64
1921	130
1922	83
1923	280
1924	113
1925	183
1926	77
1927	491
1928	53
1929	224
1930	58
1931	543
1932	394
1933	409
1934	181
1935	309
1936	567
1937	500
1938	247
1939	298
1940	467
1941	159
1942	352
1943	159
1944	259
1945	210
1946	707
1947	461
1948	591
1949	384
1950	310
1951	1,421
1952	377
1953	410
1954	286
1955	429
1956	216
1957	724
1958	584
1959	414
1960	389
1961	309
1962	810
1963	1,015
1964	388
1965	1,371
1966	326
1967	1,023
1968	1,371
1969	825
1970	579
1971	568
1972	836
1973	1,370
1974	590
1975	791
1976	1,306
1977	641
1978	2,791
1979	448
1980	1,448
1981	786
1982	639
1983	2,220
1984	942
1985	593
1986	616
1987	845
1988	600
1989	506
1990	1,379
1991	703
1992	1,062
1993	718
1994	878
1995	1,151
1996	2,202
1997	988
1998	739
1999	524
2000	1,575
2001	748
2002	1,232
2003	523
2004	1,278
2005	959
2006	2,089
2007	652
2008	656
2009	867
2010	1,544
2011	739
2012	803
2013	606
2014	903
2015	748
2016	678
2017	1,589
2018	620
2019	593
2020	489
2021	1,739
2022	1,497
2023	474
2024	460
2025	760

Download the Data

Data for records on 1966-12-31: 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	189
20 to 40	29
40 to 60	14
60 to 80	7
80 to 100	1
100 to 120	3
120 to 140	4
140 to 160	3