Weather Records on 15 December 1966

275 weather records were set or tied worldwide on 15 December 1966. Highest significance: Premier Mine-Cullinan, ZA.

Key Facts for 15 December 1966

On 15 December 1966, 275 weather records were set or tied at long-record stations worldwide.
62 were record highs and 62 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 7 monthly and 268 daily.
Premier Mine-Cullinan set a daily record precipitation of 65.5 mm (2.6 in) on 15 December 1966.
Across 168 earlier years (1793 to 2025) the same calendar date averaged 457 records.

Record Map

275 stations

275 station records on 15 December 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 December 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Premier Mine-Cullinan	South Africa	Record daily precipitation	65.5 mm (2.6 in)	53 of 100 (Notable)
Alagoa Nova (Laranjeiras)	Brazil	Record daily precipitation	32.5 mm (1.3 in)	44 of 100 (Notable)
Zwartruggens (Pol)	South Africa	Record daily precipitation	60.0 mm (2.4 in)	44 of 100 (Notable)
Pilanesberg-Pol	South Africa	Record daily precipitation	76.5 mm (3.0 in)	44 of 100 (Notable)
Argyle Downs	Australia	Record daily precipitation	50.8 mm (2.0 in)	40 of 100 (Notable)
Estevan Point	Canada	Record daily precipitation	124.2 mm (4.9 in)	39 of 100 (Notable)
Alouette Lake	Canada	Record daily precipitation	100.8 mm (4.0 in)	39 of 100 (Notable)
Agassiz Cda	Canada	Record daily precipitation	61.0 mm (2.4 in)	37 of 100 (Notable)
Stave Falls	Canada	Record daily precipitation	80.0 mm (3.1 in)	37 of 100 (Notable)
Burquitlam Vancouver Golf Cour	Canada	Record daily precipitation	68.8 mm (2.7 in)	36 of 100 (Notable)
Blue River North	Canada	Record daily precipitation	34.0 mm (1.3 in)	36 of 100 (Notable)
Anna	Russia	Record daily precipitation	26.1 mm (1.0 in)	36 of 100 (Notable)
Bon Accord Dam	South Africa	Record daily precipitation	73.0 mm (2.9 in)	34 of 100 (Routine)
Setlagodi (Pol)	South Africa	Record daily precipitation	40.5 mm (1.6 in)	33 of 100 (Routine)
Lithgow (Birdwood St)	Australia	Record daily precipitation	25.1 mm (1.0 in)	32 of 100 (Routine)
Orford South	Australia	Record daily precipitation	27.4 mm (1.1 in)	32 of 100 (Routine)
Hinnomunjie	Australia	Record daily precipitation	26.9 mm (1.1 in)	31 of 100 (Routine)
Chilliwack	Canada	Record daily precipitation	52.1 mm (2.1 in)	31 of 100 (Routine)
Hedal I Valdres	Norway	Record snow depth	128.0 cm (50.4 in)	31 of 100 (Routine)
Ekaterinburg	Russia	Record low maximum temperature	-32.0 C (-25.6 F)	30 of 100 (Routine)
Dwarsfontein	South Africa	Record daily precipitation	47.0 mm (1.9 in)	30 of 100 (Routine)
Brynawe, Paddock	South Africa	Record daily precipitation	47.0 mm (1.9 in)	29 of 100 (Routine)
Seymour Falls	Canada	Record daily precipitation	119.1 mm (4.7 in)	28 of 100 (Routine)
White Rock Campbell Scientific	Canada	Record daily precipitation	42.7 mm (1.7 in)	28 of 100 (Routine)
Svyatoy Nos;Cape(Closed)	Russia	Record low minimum temperature	-17.5 C (0.5 F)	28 of 100 (Routine)
Buffelshoek	South Africa	Record daily precipitation	44.0 mm (1.7 in)	28 of 100 (Routine)
Vastrap	South Africa	Record daily precipitation	44.5 mm (1.8 in)	28 of 100 (Routine)
Buntzen Lake	Canada	Record daily precipitation	121.4 mm (4.8 in)	27 of 100 (Routine)
Assiniboia	Canada	Record high minimum temperature	-5.0 C (23.0 F)	27 of 100 (Routine)
Leribe	Lesotho	Record daily precipitation	67.1 mm (2.6 in)	27 of 100 (Routine)
Tweespruit	South Africa	Record daily precipitation	32.5 mm (1.3 in)	27 of 100 (Routine)
Mosita	South Africa	Record daily precipitation	61.0 mm (2.4 in)	27 of 100 (Routine)
Fergana	Uzbekistan	Record high minimum temperature	4.6 C (40.3 F)	27 of 100 (Routine)
Teriberka	Russia	Record low maximum temperature	-16.0 C (3.2 F)	25 of 100 (Routine)
Svyatoy Nos;Cape(Closed)	Russia	Record low maximum temperature	-13.3 C (8.1 F)	25 of 100 (Routine)
Krasnoshelye	Russia	Record low maximum temperature	-24.3 C (-11.7 F)	25 of 100 (Routine)
Cudgegong (Kiora)	Australia	Record daily precipitation	36.1 mm (1.4 in)	24 of 100 (Routine)
Kampur	India	Record daily precipitation	30.0 mm (1.2 in)	24 of 100 (Routine)
Ostrov Sosnovez	Russia	Record low maximum temperature	-16.0 C (3.2 F)	24 of 100 (Routine)
Botataboomen	South Africa	Record daily precipitation	58.0 mm (2.3 in)	24 of 100 (Routine)
Britannia Beach Furry Cr	Canada	Record daily precipitation	53.8 mm (2.1 in)	23 of 100 (Routine)
Cultus Lake	Canada	Record daily precipitation	46.5 mm (1.8 in)	23 of 100 (Routine)
Koppiesvlei	South Africa	Record daily precipitation	44.5 mm (1.8 in)	23 of 100 (Routine)
Ostrov Sosnovez	Russia	Record low minimum temperature	-19.0 C (-2.2 F)	22 of 100 (Routine)
Waterkloof	South Africa	Record daily precipitation	49.0 mm (1.9 in)	22 of 100 (Routine)
Staunton Wtp	United States	Record low minimum temperature	-16.7 C (1.9 F)	22 of 100 (Routine)
Swansea (Kelvedon)	Australia	Record daily precipitation	25.4 mm (1.0 in)	21 of 100 (Routine)
Assiniboia	Canada	Record high maximum temperature	4.4 C (39.9 F)	21 of 100 (Routine)
Limassol	Cyprus	Record daily precipitation	29.0 mm (1.1 in)	21 of 100 (Routine)
Celaya (Smn)	Mexico	Record low minimum temperature	0.6 C (33.1 F)	21 of 100 (Routine)
Vajda-Guba	Russia	Record low maximum temperature	-12.5 C (9.5 F)	21 of 100 (Routine)
Entabeni (Bos)	South Africa	Record daily precipitation	62.0 mm (2.4 in)	21 of 100 (Routine)
Harlingen	United States	Record low minimum temperature	-1.1 C (30.0 F)	21 of 100 (Routine)
Komisarivka	Ukraine	Record daily precipitation	22.5 mm (0.9 in)	20 of 100 (Routine)
Kamennaja-Step	Russia	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)
Susamyr	Kyrgyzstan	Record daily precipitation	9.3 mm (0.37 in)	20 of 100 (Routine)
Kyzylorda	Kazakhstan	Record daily precipitation	12.4 mm (0.5 in)	20 of 100 (Routine)
Odesa	Ukraine	Record daily precipitation	23.4 mm (0.9 in)	20 of 100 (Routine)
Uch-Aral	Kazakhstan	Record daily precipitation	11.9 mm (0.5 in)	20 of 100 (Routine)
Urjupinsk	Russia	Record daily precipitation	14.8 mm (0.6 in)	20 of 100 (Routine)

Counts by Type and Timescale

275 records

Records set or tied on 15 December 1966 by type: Highest daily maximum 16, Lowest daily maximum 31, Highest daily minimum 46, Lowest daily minimum 31, Heaviest daily rainfall 143, Heaviest daily snowfall 1, Deepest snow cover 7.

Records on 15 December 1966 by type
Record type	Records
Highest daily maximum	16
Lowest daily maximum	31
Highest daily minimum	46
Lowest daily minimum	31
Heaviest daily rainfall	143
Heaviest daily snowfall	1
Deepest snow cover	7

Records on 15 December 1966 by timescale: all-time 0, monthly 7, daily 268.

How Much Records Were Beaten By

236 broken records

Margins by which the 236 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 400.0. Ties are not counted.

Top 20 by Significance

15 December 1966

Top 20 records on 15 December 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 December 1966	Premier Mine-Cullinan, ZA	daily rain	65.5 mm (2.6 in)	43.4 mm (1.7 in)	56 years	53 of 100 (Notable)
15 December 1966	Alagoa Nova (Laranjeiras), BR	daily rain	32.5 mm (1.3 in)	27.3 mm (1.1 in)	27 years	44 of 100 (Notable)
15 December 1966	Zwartruggens (Pol), ZA	daily rain	60.0 mm (2.4 in)	28.2 mm (1.1 in)	57 years	44 of 100 (Notable)
15 December 1966	Pilanesberg-Pol, ZA	daily rain	76.5 mm (3.0 in)	56.5 mm (2.2 in)	9 years	44 of 100 (Notable)
15 December 1966	Argyle Downs, AU	daily rain	50.8 mm (2.0 in)	24.6 mm (1.0 in)	48 years	40 of 100 (Notable)
15 December 1966	Estevan Point, CA	daily rain	124.2 mm (4.9 in)	42.9 mm (1.7 in)	40 years	39 of 100 (Notable)
15 December 1966	Alouette Lake, CA	daily rain	100.8 mm (4.0 in)	41.4 mm (1.6 in)	41 years	39 of 100 (Notable)
15 December 1966	Agassiz Cda, CA	daily rain	61.0 mm (2.4 in)	14.3 mm (0.6 in)	63 years	37 of 100 (Notable)
15 December 1966	Stave Falls, CA	daily rain	80.0 mm (3.1 in)	44.4 mm (1.7 in)	9 years	37 of 100 (Notable)
15 December 1966	Burquitlam Vancouver Golf Cour, CA	daily rain	68.8 mm (2.7 in)	34.0 mm (1.3 in)	24 years	36 of 100 (Notable)
15 December 1966	Blue River North, CA	daily rain	34.0 mm (1.3 in)	21.8 mm (0.9 in)	9 years	36 of 100 (Notable)
15 December 1966	Anna, RU	monthly rain	26.1 mm (1.0 in)	6.2 mm (0.24 in)	3 years	36 of 100 (Notable)
15 December 1966	Bon Accord Dam, ZA	monthly rain	73.0 mm (2.9 in)	13.6 mm (0.5 in)	32 years	34 of 100 (Routine)
15 December 1966	Setlagodi (Pol), ZA	daily rain	40.5 mm (1.6 in)	12.1 mm (0.5 in)	59 years	33 of 100 (Routine)
15 December 1966	Lithgow (Birdwood St), AU	daily rain	25.1 mm (1.0 in)	12.7 mm (0.5 in)	51 years	32 of 100 (Routine)
15 December 1966	Orford South, AU	daily rain	27.4 mm (1.1 in)	19.5 mm (0.8 in)	5 years	32 of 100 (Routine)
15 December 1966	Hinnomunjie, AU	daily rain	26.9 mm (1.1 in)	2.8 mm (0.11 in)	71 years	31 of 100 (Routine)
15 December 1966	Chilliwack, CA	daily rain	52.1 mm (2.1 in)	12.0 mm (0.5 in)	48 years	31 of 100 (Routine)
15 December 1966	Hedal I Valdres, NO	daily snow depth	128.0 cm (50.4 in)	40.0 cm (15.7 in)	28 years	31 of 100 (Routine)
15 December 1966	Ekaterinburg, RU	daily low max	-32.0 C (-25.6 F)	2.6 C (4.7 F)	64 years	30 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

1793 to 1966

Records set or tied on this calendar date in each year from 1793 to 1966. 1966 had 275 records.

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

Records on 12-15 in each year
Year	Records
1793	1
1796	1
1798	1
1800	1
1808	3
1810	1
1814	3
1815	1
1825	1
1831	1
1840	2
1844	2
1846	3
1847	1
1854	3
1859	2
1863	1
1864	1
1866	1
1867	2
1868	1
1869	1
1870	1
1873	1
1874	1
1878	4
1879	2
1880	2
1881	3
1882	2
1883	1
1885	1
1886	1
1889	3
1890	1
1891	2
1892	4
1893	1
1894	4
1895	1
1896	5
1897	2
1899	12
1900	5
1901	21
1902	3
1903	7
1904	9
1905	6
1906	9
1907	10
1908	5
1909	5
1910	4
1911	23
1912	42
1913	13
1914	239
1915	180
1916	40
1917	40
1918	54
1919	28
1920	35
1921	26
1922	65
1923	132
1924	358
1925	187
1926	226
1927	235
1928	388
1929	500
1930	160
1931	284
1932	385
1933	796
1934	199
1935	140
1936	286
1937	310
1938	100
1939	637
1940	464
1941	373
1942	385
1943	486
1944	281
1945	420
1946	521
1947	634
1948	1,239
1949	135
1950	292
1951	962
1952	367
1953	270
1954	413
1955	371
1956	531
1957	304
1958	531
1959	560
1960	313
1961	883
1962	979
1963	670
1964	371
1965	759
1966	275
1967	948
1968	510
1969	352
1970	215
1971	1,739
1972	1,159
1973	615
1974	511
1975	1,230
1976	349
1977	963
1978	499
1979	560
1980	1,085
1981	1,243
1982	831
1983	1,229
1984	1,397
1985	1,077
1986	502
1987	1,740
1988	519
1989	2,753
1990	846
1991	636
1992	1,263
1993	734
1994	676
1995	848
1996	727
1997	1,521
1998	1,216
1999	621
2000	1,154
2001	1,026
2002	831
2003	846
2004	795
2005	953
2006	1,491
2007	973
2008	1,789
2009	930
2010	1,705
2011	780
2012	1,058
2013	701
2014	1,045
2015	1,398
2016	1,024
2017	332
2018	539
2019	547
2020	400
2021	1,182
2022	1,057
2023	794
2024	369
2025	2,115

Download the Data

Data for records on 1966-12-15: 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	230
50 to 100	4
100 to 150	1
150 to 200	0
200 to 250	0
250 to 300	0
300 to 350	0
350 to 400	1