Weather Records on 15 December 1964

371 weather records were set or tied worldwide on 15 December 1964. Highest significance: Anadyr, RU.

Key Facts for 15 December 1964

On 15 December 1964, 371 weather records were set or tied at long-record stations worldwide.
23 were record highs and 163 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 21 monthly and 348 daily.
Anadyr set a monthly record daily precipitation of 28.4 mm (1.1 in) on 15 December 1964.
Across 168 earlier years (1793 to 2025) the same calendar date averaged 456 records.

Record Map

371 stations

371 station records on 15 December 1964 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 December 1964: highest significance records shown on the map
Station	Country	Type	Value	Significance
Anadyr	Russia	Record daily precipitation	28.4 mm (1.1 in)	56 of 100 (Notable)
Kakabeka Falls	Canada	Record daily snowfall	22.9 cm (9.0 in)	55 of 100 (Notable)
Fort Qu'appelle	Canada	Record daily snowfall	10.2 cm (4.0 in)	47 of 100 (Notable)
Moran 5WNW	United States	Record daily snowfall	22.9 cm (9.0 in)	38 of 100 (Notable)
Lead	United States	Record daily snowfall	12.7 cm (5.0 in)	37 of 100 (Notable)
Sitka Magnetic Obsy	United States	Record low maximum temperature	-13.3 C (8.1 F)	36 of 100 (Notable)
Twin Falls 2 NNE	United States	Record daily snowfall	6.4 cm (2.5 in)	34 of 100 (Routine)
Dickinson Exp STN	United States	Record snow depth	20.3 cm (8.0 in)	34 of 100 (Routine)
Rimrock Tieton Dam	United States	Record daily snowfall	25.4 cm (10.0 in)	34 of 100 (Routine)
Lake Kachess	United States	Record daily snowfall	25.4 cm (10.0 in)	33 of 100 (Routine)
Masset Airport	Canada	Record low maximum temperature	-10.0 C (14.0 F)	31 of 100 (Routine)
Enterprise Rs	United States	Record daily snowfall	10.2 cm (4.0 in)	31 of 100 (Routine)
Tatoosh Island Wb	United States	Record low minimum temperature	-6.7 C (19.9 F)	31 of 100 (Routine)
Foremost	Canada	Record low maximum temperature	-31.1 C (-24.0 F)	30 of 100 (Routine)
Medicine Hat A	Canada	Record daily snowfall	6.4 cm (2.5 in)	30 of 100 (Routine)
Pekisko	Canada	Record low maximum temperature	-33.3 C (-27.9 F)	30 of 100 (Routine)
Livingston	United States	Record low minimum temperature	-31.1 C (-24.0 F)	30 of 100 (Routine)
Sitka Magnetic Obsy	United States	Record low minimum temperature	-20.0 C (-4.0 F)	30 of 100 (Routine)
Ketchikan AP	United States	Record low minimum temperature	-18.3 C (-0.9 F)	30 of 100 (Routine)
Tewantin Post Office	Australia	Record high maximum temperature	36.7 C (98.1 F)	29 of 100 (Routine)
Maple Creek	Canada	Record daily snowfall	7.6 cm (3.0 in)	29 of 100 (Routine)
Souris	Canada	Record daily snowfall	10.2 cm (4.0 in)	29 of 100 (Routine)
Tree Point Lt STN	United States	Record low maximum temperature	-11.7 C (10.9 F)	29 of 100 (Routine)
Pender Island	Canada	Record daily snowfall	6.4 cm (2.5 in)	28 of 100 (Routine)
Barkerville	Canada	Record low minimum temperature	-36.1 C (-33.0 F)	28 of 100 (Routine)
Regina Int'l A	Canada	Record daily snowfall	8.9 cm (3.5 in)	28 of 100 (Routine)
Regina Cda	Canada	Record daily snowfall	7.9 cm (3.1 in)	28 of 100 (Routine)
Warren	United States	Record daily snowfall	11.4 cm (4.5 in)	28 of 100 (Routine)
Moloaa 1145	United States	Record daily precipitation	43.9 mm (1.7 in)	28 of 100 (Routine)
Baker Kbkr	United States	Record daily snowfall	6.4 cm (2.5 in)	28 of 100 (Routine)
Ketchikan AP	United States	Record low maximum temperature	-11.7 C (10.9 F)	28 of 100 (Routine)
Fort St James	Canada	Record low minimum temperature	-36.1 C (-33.0 F)	27 of 100 (Routine)
Bowie	United States	Record low minimum temperature	-10.6 C (12.9 F)	27 of 100 (Routine)
Custer	United States	Record snow depth	15.2 cm (6.0 in)	27 of 100 (Routine)
Skagway	United States	Record low maximum temperature	-22.2 C (-8.0 F)	27 of 100 (Routine)
Roswell Muni AP	United States	Record low minimum temperature	-13.9 C (7.0 F)	27 of 100 (Routine)
Quatsino	Canada	Record low maximum temperature	-2.8 C (27.0 F)	26 of 100 (Routine)
Carway	Canada	Record low maximum temperature	-32.2 C (-26.0 F)	26 of 100 (Routine)
Nokomis	Canada	Record daily snowfall	10.2 cm (4.0 in)	26 of 100 (Routine)
Winkelman 6 S	United States	Record low minimum temperature	-8.9 C (16.0 F)	26 of 100 (Routine)
New Meadows Rs	United States	Record daily snowfall	18.8 cm (7.4 in)	26 of 100 (Routine)
Viking	Canada	Record low maximum temperature	-35.0 C (-31.0 F)	25 of 100 (Routine)
Outlook	Canada	Record daily snowfall	7.6 cm (3.0 in)	25 of 100 (Routine)
Rosthern	Canada	Record daily snowfall	10.2 cm (4.0 in)	25 of 100 (Routine)
Valemount	Canada	Record low maximum temperature	-28.9 C (-20.0 F)	24 of 100 (Routine)
Lethbridge Cda	Canada	Record low maximum temperature	-29.4 C (-20.9 F)	24 of 100 (Routine)
Chemnitz	Germany	Record high maximum temperature	12.3 C (54.1 F)	24 of 100 (Routine)
Hull	United Kingdom	Record low maximum temperature	-1.1 C (30.0 F)	24 of 100 (Routine)
Elephant Butte Dam	United States	Record low minimum temperature	-10.0 C (14.0 F)	24 of 100 (Routine)
Hatch	United States	Record low minimum temperature	-13.3 C (8.1 F)	24 of 100 (Routine)
Camp Crook	United States	Record snow depth	25.4 cm (10.0 in)	24 of 100 (Routine)
Dumont 2 ENE	United States	Record daily snowfall	7.6 cm (3.0 in)	24 of 100 (Routine)
Clallam Bay 1 NNE	United States	Record low minimum temperature	-8.9 C (16.0 F)	24 of 100 (Routine)
Skagway	United States	Record low minimum temperature	-28.9 C (-20.0 F)	24 of 100 (Routine)
Wrangell AP	United States	Record low minimum temperature	-21.7 C (-7.1 F)	24 of 100 (Routine)
Superior	United States	Record daily snowfall	12.7 cm (5.0 in)	24 of 100 (Routine)
Estevan Point	Canada	Record low minimum temperature	-6.1 C (21.0 F)	23 of 100 (Routine)
Stewart	Canada	Record low minimum temperature	-21.7 C (-7.1 F)	23 of 100 (Routine)
Big Creek	Canada	Record low maximum temperature	-24.4 C (-11.9 F)	23 of 100 (Routine)
Consul	Canada	Record daily snowfall	7.6 cm (3.0 in)	23 of 100 (Routine)

Counts by Type and Timescale

371 records

Records set or tied on 15 December 1964 by type: Highest daily maximum 9, Lowest daily maximum 62, Highest daily minimum 14, Lowest daily minimum 101, Heaviest daily rainfall 88, Heaviest daily snowfall 84, Deepest snow cover 13.

Records on 15 December 1964 by type
Record type	Records
Highest daily maximum	9
Lowest daily maximum	62
Highest daily minimum	14
Lowest daily minimum	101
Heaviest daily rainfall	88
Heaviest daily snowfall	84
Deepest snow cover	13

Records on 15 December 1964 by timescale: all-time 2, monthly 21, daily 348.

How Much Records Were Beaten By

297 broken records

Margins by which the 297 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 165.0. Ties are not counted.

Top 20 by Significance

15 December 1964

Top 20 records on 15 December 1964 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 December 1964	Anadyr, RU	monthly rain	28.4 mm (1.1 in)	12.4 mm (0.5 in)	0 years	56 of 100 (Notable)
15 December 1964	Kakabeka Falls, CA	daily snowfall	22.9 cm (9.0 in)	16.5 cm (6.5 in)	40 years	55 of 100 (Notable)
15 December 1964	Fort Qu'appelle, CA	daily snowfall	10.2 cm (4.0 in)	5.6 cm (2.2 in)	49 years	47 of 100 (Notable)
15 December 1964	Moran 5WNW, US	daily snowfall	22.9 cm (9.0 in)	15.3 cm (6.0 in)	23 years	38 of 100 (Notable)
15 December 1964	Lead, US	daily snowfall	12.7 cm (5.0 in)	7.6 cm (3.0 in)	55 years	37 of 100 (Notable)
15 December 1964	Sitka Magnetic Obsy, US	daily low max	-13.3 C (8.1 F)	7.7 C (13.9 F)	40 years	36 of 100 (Notable)
15 December 1964	Twin Falls 2 NNE, US	daily snowfall	6.4 cm (2.5 in)	3.9 cm (1.5 in)	58 years	34 of 100 (Routine)
15 December 1964	Dickinson Exp STN, US	daily snow depth	20.3 cm (8.0 in)	5.1 cm (2.0 in)	63 years	34 of 100 (Routine)
15 December 1964	Rimrock Tieton Dam, US	daily snowfall	25.4 cm (10.0 in)	15.2 cm (6.0 in)	38 years	34 of 100 (Routine)
15 December 1964	Lake Kachess, US	daily snowfall	25.4 cm (10.0 in)	12.7 cm (5.0 in)	53 years	33 of 100 (Routine)
15 December 1964	Masset Airport, CA	monthly low max	-10.0 C (14.0 F)	1.7 C (3.1 F)	35 years	31 of 100 (Routine)
15 December 1964	Enterprise Rs, US	daily snowfall	10.2 cm (4.0 in)	5.6 cm (2.2 in)	31 years	31 of 100 (Routine)
15 December 1964	Tatoosh Island Wb, US	monthly low min	-6.7 C (19.9 F)	2.3 C (4.1 F)	32 years	31 of 100 (Routine)
15 December 1964	Foremost, CA	all-time low max	-31.1 C (-24.0 F)	4.4 C (7.9 F)	2 years	30 of 100 (Routine)
15 December 1964	Medicine Hat A, CA	daily snowfall	6.4 cm (2.5 in)	1.3 cm (0.5 in)	63 years	30 of 100 (Routine)
15 December 1964	Pekisko, CA	monthly low max	-33.3 C (-27.9 F)	1.6 C (2.9 F)	45 years	30 of 100 (Routine)
15 December 1964	Livingston, US	daily low min	-31.1 C (-24.0 F)	8.9 C (16.0 F)	40 years	30 of 100 (Routine)
15 December 1964	Sitka Magnetic Obsy, US	daily low min	-20.0 C (-4.0 F)	5.6 C (10.1 F)	40 years	30 of 100 (Routine)
15 December 1964	Ketchikan AP, US	monthly low min	-18.3 C (-0.9 F)	0.5 C (0.9 F)	46 years	30 of 100 (Routine)
15 December 1964	Tewantin Post Office, AU	daily high max	36.7 C (98.1 F)	2.0 C (3.6 F)	50 years	29 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 1964

Records set or tied on this calendar date in each year from 1793 to 1964. 1964 had 371 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 1964-12-15: 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 25	243
25 to 50	31
50 to 75	15
75 to 100	4
100 to 125	0
125 to 150	1
150 to 175	3