Weather Records on 30 December 1966

403 weather records were set or tied worldwide on 30 December 1966. Highest significance: Gundagai, AU.

Key Facts for 30 December 1966

On 30 December 1966, 403 weather records were set or tied at long-record stations worldwide.
34 were record highs and 166 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 13 monthly and 389 daily.
Gundagai set a daily record precipitation of 51.6 mm (2.0 in) on 30 December 1966.
Across 154 earlier years (1799 to 2025) the same calendar date averaged 496 records.

Record Map

403 stations

403 station records on 30 December 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 December 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Gundagai	Australia	Record daily precipitation	51.6 mm (2.0 in)	63 of 100 (Major)
Concordia ASOS	United States	Record snow depth	30.5 cm (12.0 in)	63 of 100 (Major)
Bourke (Beemery)	Australia	Record daily precipitation	53.8 mm (2.1 in)	58 of 100 (Notable)
Talwood State School	Australia	Record daily precipitation	69.9 mm (2.8 in)	53 of 100 (Notable)
Manhattan	United States	Record snow depth	25.4 cm (10.0 in)	51 of 100 (Notable)
Ibirama (Pcd)	Brazil	Record daily precipitation	66.3 mm (2.6 in)	46 of 100 (Notable)
Minneapolis	United States	Record snow depth	25.4 cm (10.0 in)	41 of 100 (Notable)
Alton 1 W	United States	Record snow depth	27.9 cm (11.0 in)	40 of 100 (Notable)
Ellsworth	United States	Record snow depth	17.8 cm (7.0 in)	40 of 100 (Notable)
Port Menier	Canada	Record daily snowfall	21.8 cm (8.6 in)	39 of 100 (Notable)
Skjak	Norway	Record snow depth	59.0 cm (23.2 in)	39 of 100 (Notable)
Seligman	United States	Record daily snowfall	10.2 cm (4.0 in)	39 of 100 (Notable)
St George	United States	Record daily snowfall	5.8 cm (2.3 in)	38 of 100 (Notable)
Hedley	Canada	Record daily snowfall	12.7 cm (5.0 in)	36 of 100 (Notable)
Lake Placid 2 S	United States	Record daily snowfall	12.7 cm (5.0 in)	36 of 100 (Notable)
Hays 1 S	United States	Record snow depth	22.9 cm (9.0 in)	35 of 100 (Notable)
McPherson	United States	Record snow depth	22.9 cm (9.0 in)	35 of 100 (Notable)
Nogales	United States	Record low maximum temperature	4.4 C (39.9 F)	34 of 100 (Routine)
Zion Np	United States	Record daily snowfall	5.1 cm (2.0 in)	33 of 100 (Routine)
Globe Rs	United States	Record low maximum temperature	1.1 C (34.0 F)	32 of 100 (Routine)
Marnhull	Australia	Record daily precipitation	30.5 mm (1.2 in)	31 of 100 (Routine)
Cawker City	United States	Record snow depth	25.4 cm (10.0 in)	31 of 100 (Routine)
Wellton	United States	Record low maximum temperature	7.2 C (45.0 F)	30 of 100 (Routine)
Gowrie Station	Australia	Record daily precipitation	52.6 mm (2.1 in)	29 of 100 (Routine)
Franklin	United States	Record snow depth	25.4 cm (10.0 in)	29 of 100 (Routine)
Belvidere	United States	Record snow depth	33.0 cm (13.0 in)	29 of 100 (Routine)
Fillmore	United States	Record snow depth	20.3 cm (8.0 in)	29 of 100 (Routine)
Scotia	Canada	Record daily snowfall	15.2 cm (6.0 in)	28 of 100 (Routine)
Eads	United States	Record low minimum temperature	-21.7 C (-7.1 F)	28 of 100 (Routine)
Ness City	United States	Record low maximum temperature	-7.2 C (19.0 F)	28 of 100 (Routine)
Woodville 4 ESE	United States	Record daily precipitation	42.9 mm (1.7 in)	28 of 100 (Routine)
El Vado Dam	United States	Record low minimum temperature	-30.0 C (-22.0 F)	28 of 100 (Routine)
Springer	United States	Record low minimum temperature	-25.0 C (-13.0 F)	28 of 100 (Routine)
Ewa Plantation 741	United States	Record high minimum temperature	20.6 C (69.1 F)	28 of 100 (Routine)
Olinda (Springdale)	Australia	Record daily precipitation	28.4 mm (1.1 in)	27 of 100 (Routine)
Clarks Siding	South Africa	Record daily precipitation	31.2 mm (1.2 in)	27 of 100 (Routine)
Canelo 1 NW	United States	Record low maximum temperature	1.1 C (34.0 F)	27 of 100 (Routine)
Tuzigoot Nm	United States	Record low maximum temperature	2.2 C (36.0 F)	27 of 100 (Routine)
Ness City	United States	Record low minimum temperature	-20.0 C (-4.0 F)	27 of 100 (Routine)
Winona	United States	Record snow depth	33.0 cm (13.0 in)	27 of 100 (Routine)
Pawnee City	United States	Record snow depth	22.9 cm (9.0 in)	27 of 100 (Routine)
Searchlight	United States	Record daily snowfall	5.1 cm (2.0 in)	27 of 100 (Routine)
Crockett	United States	Record low maximum temperature	6.7 C (44.1 F)	27 of 100 (Routine)
Karesuando	Sweden	Record snow depth	85.0 cm (33.5 in)	26 of 100 (Routine)
Holly	United States	Record low minimum temperature	-23.9 C (-11.0 F)	26 of 100 (Routine)
Montrose #2	United States	Record low maximum temperature	-6.7 C (19.9 F)	26 of 100 (Routine)
Johnson 11 ESE	United States	Record low minimum temperature	-19.4 C (-2.9 F)	26 of 100 (Routine)
Ft Bayard 4W	United States	Record low maximum temperature	-0.6 C (30.9 F)	26 of 100 (Routine)
Angelica	United States	Record daily snowfall	8.9 cm (3.5 in)	26 of 100 (Routine)
Dungowan Station	Australia	Record daily precipitation	30.5 mm (1.2 in)	25 of 100 (Routine)
Lithgow (Birdwood St)	Australia	Record daily precipitation	34.3 mm (1.4 in)	25 of 100 (Routine)
Jetmore	United States	Record low minimum temperature	-20.6 C (-5.1 F)	25 of 100 (Routine)
Syracuse 1NE	United States	Record low minimum temperature	-23.3 C (-9.9 F)	25 of 100 (Routine)
Ulysses 3NE	United States	Record low minimum temperature	-20.0 C (-4.0 F)	25 of 100 (Routine)
Cortland	United States	Record daily snowfall	10.2 cm (4.0 in)	25 of 100 (Routine)
Bradford Cntrl Fs	United States	Record daily precipitation	26.9 mm (1.1 in)	25 of 100 (Routine)
Ft Duchesne	United States	Record low maximum temperature	-14.4 C (6.1 F)	25 of 100 (Routine)
Ft Valley	United States	Record low maximum temperature	-6.1 C (21.0 F)	24 of 100 (Routine)
Phillipsburg 1 SSE	United States	Record low minimum temperature	-21.7 C (-7.1 F)	24 of 100 (Routine)
Sublette 7WSW	United States	Record low minimum temperature	-20.0 C (-4.0 F)	24 of 100 (Routine)

Counts by Type and Timescale

403 records

Records set or tied on 30 December 1966 by type: Highest daily maximum 15, Lowest daily maximum 77, Highest daily minimum 19, Lowest daily minimum 89, Heaviest daily rainfall 109, Heaviest daily snowfall 41, Deepest snow cover 53.

Records on 30 December 1966 by type
Record type	Records
Highest daily maximum	15
Lowest daily maximum	77
Highest daily minimum	19
Lowest daily minimum	89
Heaviest daily rainfall	109
Heaviest daily snowfall	41
Deepest snow cover	53

Records on 30 December 1966 by timescale: all-time 1, monthly 13, daily 389.

How Much Records Were Beaten By

311 broken records

Margins by which the 311 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

30 December 1966

Top 20 records on 30 December 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 December 1966	Gundagai, AU	daily rain	51.6 mm (2.0 in)	35.6 mm (1.4 in)	72 years	63 of 100 (Major)
30 December 1966	Concordia ASOS, US	daily snow depth	30.5 cm (12.0 in)	22.9 cm (9.0 in)	55 years	63 of 100 (Major)
30 December 1966	Bourke (Beemery), AU	daily rain	53.8 mm (2.1 in)	48.2 mm (1.9 in)	51 years	58 of 100 (Notable)
30 December 1966	Talwood State School, AU	daily rain	69.9 mm (2.8 in)	55.7 mm (2.2 in)	29 years	53 of 100 (Notable)
30 December 1966	Manhattan, US	daily snow depth	25.4 cm (10.0 in)	17.8 cm (7.0 in)	13 years	51 of 100 (Notable)
30 December 1966	Ibirama (Pcd), BR	daily rain	66.3 mm (2.6 in)	53.0 mm (2.1 in)	13 years	46 of 100 (Notable)
30 December 1966	Minneapolis, US	daily snow depth	25.4 cm (10.0 in)	10.2 cm (4.0 in)	52 years	41 of 100 (Notable)
30 December 1966	Alton 1 W, US	daily snow depth	27.9 cm (11.0 in)	10.1 cm (4.0 in)	55 years	40 of 100 (Notable)
30 December 1966	Ellsworth, US	daily snow depth	17.8 cm (7.0 in)	12.7 cm (5.0 in)	13 years	40 of 100 (Notable)
30 December 1966	Port Menier, CA	daily snowfall	21.8 cm (8.6 in)	11.6 cm (4.6 in)	36 years	39 of 100 (Notable)
30 December 1966	Skjak, NO	monthly snow depth	59.0 cm (23.2 in)	3.0 cm (1.2 in)	68 years	39 of 100 (Notable)
30 December 1966	Seligman, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	61 years	39 of 100 (Notable)
30 December 1966	St George, US	daily snowfall	5.8 cm (2.3 in)	5.8 cm (2.3 in)	68 years	38 of 100 (Notable)
30 December 1966	Hedley, CA	daily snowfall	12.7 cm (5.0 in)	5.6 cm (2.2 in)	56 years	36 of 100 (Notable)
30 December 1966	Lake Placid 2 S, US	daily snowfall	12.7 cm (5.0 in)	5.1 cm (2.0 in)	68 years	36 of 100 (Notable)
30 December 1966	Hays 1 S, US	daily snow depth	22.9 cm (9.0 in)	7.7 cm (3.0 in)	48 years	35 of 100 (Notable)
30 December 1966	McPherson, US	daily snow depth	22.9 cm (9.0 in)	10.2 cm (4.0 in)	13 years	35 of 100 (Notable)
30 December 1966	Nogales, US	daily low max	4.4 C (39.9 F)	5.6 C (10.1 F)	51 years	34 of 100 (Routine)
30 December 1966	Zion Np, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	59 years	33 of 100 (Routine)
30 December 1966	Globe Rs, US	daily low max	1.1 C (34.0 F)	5.6 C (10.1 F)	40 years	32 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

1799 to 1966

Records set or tied on this calendar date in each year from 1799 to 1966. 1966 had 403 records.

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

Records on 12-30 in each year
Year	Records
1799	2
1835	1
1850	1
1853	1
1856	1
1859	1
1863	1
1868	1
1870	4
1872	3
1874	2
1875	2
1876	3
1878	1
1880	5
1881	3
1882	3
1884	2
1888	2
1889	2
1890	7
1891	1
1892	1
1893	3
1895	6
1896	3
1897	7
1898	6
1899	3
1900	5
1901	8
1902	2
1903	8
1904	12
1905	10
1906	11
1907	26
1908	17
1909	13
1910	18
1911	20
1912	37
1913	32
1914	47
1915	62
1916	45
1917	217
1918	25
1919	82
1920	84
1921	111
1922	227
1923	223
1924	65
1925	184
1926	63
1927	290
1928	31
1929	382
1930	71
1931	509
1932	407
1933	279
1934	206
1935	202
1936	931
1937	234
1938	208
1939	237
1940	397
1941	149
1942	584
1943	165
1944	137
1945	251
1946	584
1947	317
1948	760
1949	206
1950	479
1951	955
1952	334
1953	399
1954	538
1955	254
1956	556
1957	443
1958	525
1959	216
1960	345
1961	389
1962	671
1963	567
1964	537
1965	1,122
1966	403
1967	760
1968	1,391
1969	817
1970	571
1971	1,122
1972	1,052
1973	1,262
1974	564
1975	703
1976	981
1977	795
1978	1,930
1979	427
1980	1,560
1981	684
1982	630
1983	2,765
1984	1,834
1985	568
1986	852
1987	1,270
1988	755
1989	528
1990	3,065
1991	525
1992	1,210
1993	865
1994	642
1995	1,455
1996	1,620
1997	1,384
1998	801
1999	838
2000	1,377
2001	651
2002	1,034
2003	661
2004	974
2005	928
2006	1,779
2007	748
2008	653
2009	933
2010	1,200
2011	782
2012	676
2013	642
2014	660
2015	820
2016	706
2017	1,324
2018	284
2019	1,131
2020	604
2021	1,455
2022	909
2023	726
2024	638
2025	325

Download the Data

Data for records on 1966-12-30: 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	276
50 to 100	23
100 to 150	10
150 to 200	1
200 to 250	1