Weather Records on 21 January 1964

771 weather records were set or tied worldwide on 21 January 1964. Highest significance: Port Hastings, CA.

Key Facts for 21 January 1964

On 21 January 1964, 771 weather records were set or tied at long-record stations worldwide.
360 were record highs and 42 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 20 monthly and 749 daily.
Port Hastings set a daily record precipitation of 69.9 mm (2.8 in) on 21 January 1964.
Across 163 earlier years (1793 to 2026) the same calendar date averaged 465 records.

Record Map

771 stations

771 station records on 21 January 1964 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 January 1964: highest significance records shown on the map
Station	Country	Type	Value	Significance
Port Hastings	Canada	Record daily precipitation	69.9 mm (2.8 in)	70 of 100 (Major)
Ely AP	United States	Record daily snowfall	21.3 cm (8.4 in)	58 of 100 (Notable)
Tupper Lake Sunmount	United States	Record daily precipitation	31.5 mm (1.2 in)	54 of 100 (Notable)
Grafton	United States	Record daily precipitation	46.5 mm (1.8 in)	52 of 100 (Notable)
Fitzwilliam 2 W	United States	Record daily precipitation	43.9 mm (1.7 in)	51 of 100 (Notable)
Portola	United States	Record daily snowfall	50.8 cm (20.0 in)	50 of 100 (Notable)
Groton	United States	Record daily precipitation	44.5 mm (1.8 in)	50 of 100 (Notable)
Holyoke	United States	Record daily precipitation	42.9 mm (1.7 in)	50 of 100 (Notable)
Bellows Falls	United States	Record daily precipitation	52.3 mm (2.1 in)	50 of 100 (Notable)
Acude Macaubas	Brazil	Record daily precipitation	94.3 mm (3.7 in)	49 of 100 (Notable)
Northbridge	United States	Record daily precipitation	61.0 mm (2.4 in)	47 of 100 (Notable)
Castro Alves	Brazil	Record daily precipitation	49.2 mm (1.9 in)	45 of 100 (Notable)
Peru	United States	Record daily precipitation	47.0 mm (1.9 in)	45 of 100 (Notable)
Darby	United States	Record daily snowfall	25.4 cm (10.0 in)	45 of 100 (Notable)
Dannemora	United States	Record daily precipitation	27.9 mm (1.1 in)	45 of 100 (Notable)
Oroville Brg	United States	Record daily precipitation	91.2 mm (3.6 in)	44 of 100 (Notable)
Yreka	United States	Record daily precipitation	59.7 mm (2.4 in)	44 of 100 (Notable)
Newport	United States	Record daily precipitation	46.7 mm (1.8 in)	44 of 100 (Notable)
Barrinha	Brazil	Record daily precipitation	116.7 mm (4.6 in)	43 of 100 (Notable)
Lake Spaulding	United States	Record daily snowfall	61.0 cm (24.0 in)	43 of 100 (Notable)
Milford	United States	Record daily precipitation	52.1 mm (2.1 in)	43 of 100 (Notable)
Keene	United States	Record daily precipitation	40.1 mm (1.6 in)	43 of 100 (Notable)
Whitingham 1 W	United States	Record daily precipitation	50.3 mm (2.0 in)	43 of 100 (Notable)
Bowman Dam	United States	Record daily snowfall	68.6 cm (27.0 in)	42 of 100 (Notable)
Chestnut Hill	United States	Record daily precipitation	46.7 mm (1.8 in)	42 of 100 (Notable)
Tobolsk	Russia	Record low minimum temperature	-48.5 C (-55.3 F)	41 of 100 (Notable)
Fitchburg 4 SE	United States	Record daily precipitation	44.7 mm (1.8 in)	41 of 100 (Notable)
Hubbardston	United States	Record daily precipitation	35.1 mm (1.4 in)	41 of 100 (Notable)
Spot Pond	United States	Record daily precipitation	49.3 mm (1.9 in)	41 of 100 (Notable)
Waterville	United States	Record snow depth	48.3 cm (19.0 in)	41 of 100 (Notable)
Nuwara Eliya	Sri Lanka	Record high maximum temperature	25.9 C (78.6 F)	40 of 100 (Notable)
Uppsala_Aut	Sweden	Record high maximum temperature	6.5 C (43.7 F)	40 of 100 (Notable)
Chasm Falls	United States	Record daily precipitation	26.7 mm (1.1 in)	40 of 100 (Notable)
Cambridge	United States	Record daily precipitation	35.6 mm (1.4 in)	39 of 100 (Notable)
McCall	United States	Record daily snowfall	53.3 cm (21.0 in)	39 of 100 (Notable)
Heath	United States	Record daily precipitation	45.7 mm (1.8 in)	39 of 100 (Notable)
Shelburne Falls	United States	Record daily precipitation	47.0 mm (1.9 in)	39 of 100 (Notable)
Franklin	United States	Record daily precipitation	55.4 mm (2.2 in)	39 of 100 (Notable)
Snake Creek Powerhouse	United States	Record daily precipitation	27.4 mm (1.1 in)	39 of 100 (Notable)
Regina Int'l A	Canada	Record daily snowfall	6.4 cm (2.5 in)	38 of 100 (Notable)
Chaplin	Canada	Record daily snowfall	16.5 cm (6.5 in)	38 of 100 (Notable)
Middletown 4 W	United States	Record daily precipitation	51.6 mm (2.0 in)	38 of 100 (Notable)
Weston	United States	Record daily precipitation	40.6 mm (1.6 in)	38 of 100 (Notable)
Mechanicville 2 S	United States	Record daily precipitation	28.7 mm (1.1 in)	38 of 100 (Notable)
Cornwall	United States	Record daily precipitation	41.1 mm (1.6 in)	38 of 100 (Notable)
Gravelbourg	Canada	Record daily snowfall	13.7 cm (5.4 in)	37 of 100 (Notable)
Petrun	Russia	Record low maximum temperature	-43.9 C (-47.0 F)	37 of 100 (Notable)
Montrose	United States	Record daily precipitation	31.5 mm (1.2 in)	37 of 100 (Notable)
Davidson	Canada	Record daily snowfall	12.7 cm (5.0 in)	36 of 100 (Notable)
Swan River	Canada	Record daily snowfall	17.8 cm (7.0 in)	36 of 100 (Notable)
Bologna	Italy	Record low minimum temperature	-9.7 C (14.5 F)	36 of 100 (Notable)
Nashua 2 NNW	United States	Record daily precipitation	38.4 mm (1.5 in)	36 of 100 (Notable)
Plattsburgh AFB	United States	Record daily precipitation	33.0 mm (1.3 in)	36 of 100 (Notable)
Fran?A	Brazil	Record daily precipitation	54.0 mm (2.1 in)	35 of 100 (Notable)
Regina Cda	Canada	Record daily snowfall	7.6 cm (3.0 in)	35 of 100 (Notable)
Madison	United States	Record daily precipitation	31.8 mm (1.3 in)	35 of 100 (Notable)
Ashland	United States	Record daily precipitation	43.9 mm (1.7 in)	35 of 100 (Notable)
Hardwick	United States	Record daily precipitation	33.8 mm (1.3 in)	35 of 100 (Notable)
Berlin	United States	Record daily precipitation	34.0 mm (1.3 in)	35 of 100 (Notable)
New Berlin	United States	Record daily precipitation	30.2 mm (1.2 in)	35 of 100 (Notable)

Counts by Type and Timescale

771 records

Records set or tied on 21 January 1964 by type: Highest daily maximum 216, Lowest daily maximum 21, Highest daily minimum 144, Lowest daily minimum 21, Heaviest daily rainfall 272, Heaviest daily snowfall 88, Deepest snow cover 9.

Records on 21 January 1964 by type
Record type	Records
Highest daily maximum	216
Lowest daily maximum	21
Highest daily minimum	144
Lowest daily minimum	21
Heaviest daily rainfall	272
Heaviest daily snowfall	88
Deepest snow cover	9

Records on 21 January 1964 by timescale: all-time 2, monthly 20, daily 749.

How Much Records Were Beaten By

635 broken records

Margins by which the 635 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 483.0. Ties are not counted.

Top 20 by Significance

21 January 1964

Top 20 records on 21 January 1964 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 January 1964	Port Hastings, CA	daily rain	69.9 mm (2.8 in)	57.2 mm (2.3 in)	72 years	70 of 100 (Major)
21 January 1964	Ely AP, US	daily snowfall	21.3 cm (8.4 in)	16.2 cm (6.4 in)	68 years	58 of 100 (Notable)
21 January 1964	Tupper Lake Sunmount, US	daily rain	31.5 mm (1.2 in)	22.4 mm (0.9 in)	26 years	54 of 100 (Notable)
21 January 1964	Grafton, US	daily rain	46.5 mm (1.8 in)	21.1 mm (0.8 in)	63 years	52 of 100 (Notable)
21 January 1964	Fitzwilliam 2 W, US	daily rain	43.9 mm (1.7 in)	31.7 mm (1.2 in)	26 years	51 of 100 (Notable)
21 January 1964	Portola, US	daily snowfall	50.8 cm (20.0 in)	38.1 cm (15.0 in)	36 years	50 of 100 (Notable)
21 January 1964	Groton, US	daily rain	44.5 mm (1.8 in)	22.7 mm (0.9 in)	60 years	50 of 100 (Notable)
21 January 1964	Holyoke, US	daily rain	42.9 mm (1.7 in)	25.4 mm (1.0 in)	60 years	50 of 100 (Notable)
21 January 1964	Bellows Falls, US	daily rain	52.3 mm (2.1 in)	33.0 mm (1.3 in)	16 years	50 of 100 (Notable)
21 January 1964	Acude Macaubas, BR	daily rain	94.3 mm (3.7 in)	69.2 mm (2.7 in)	20 years	49 of 100 (Notable)
21 January 1964	Northbridge, US	daily rain	61.0 mm (2.4 in)	41.2 mm (1.6 in)	16 years	47 of 100 (Notable)
21 January 1964	Castro Alves, BR	daily rain	49.2 mm (1.9 in)	34.7 mm (1.4 in)	38 years	45 of 100 (Notable)
21 January 1964	Peru, US	daily rain	47.0 mm (1.9 in)	36.1 mm (1.4 in)	9 years	45 of 100 (Notable)
21 January 1964	Darby, US	daily snowfall	25.4 cm (10.0 in)	15.2 cm (6.0 in)	20 years	45 of 100 (Notable)
21 January 1964	Dannemora, US	daily rain	27.9 mm (1.1 in)	12.7 mm (0.5 in)	50 years	45 of 100 (Notable)
21 January 1964	Oroville Brg, US	daily rain	91.2 mm (3.6 in)	41.4 mm (1.6 in)	20 years	44 of 100 (Notable)
21 January 1964	Yreka, US	daily rain	59.7 mm (2.4 in)	18.3 mm (0.7 in)	67 years	44 of 100 (Notable)
21 January 1964	Newport, US	daily rain	46.7 mm (1.8 in)	35.8 mm (1.4 in)	4 years	44 of 100 (Notable)
21 January 1964	Barrinha, BR	daily rain	116.7 mm (4.6 in)	93.5 mm (3.7 in)	2 years	43 of 100 (Notable)
21 January 1964	Lake Spaulding, US	daily snowfall	61.0 cm (24.0 in)	33.1 cm (13.0 in)	54 years	43 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

1793 to 1964

Records set or tied on this calendar date in each year from 1793 to 1964. 1964 had 771 records.

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

Records on 01-21 in each year
Year	Records
1793	1
1795	2
1796	1
1798	1
1800	2
1803	1
1804	2
1829	1
1838	3
1840	2
1845	2
1846	1
1850	2
1864	2
1866	4
1867	1
1869	1
1871	1
1873	2
1876	1
1878	4
1880	3
1881	4
1884	1
1885	1
1886	1
1888	3
1890	2
1891	3
1892	2
1893	1
1894	3
1895	2
1896	2
1897	3
1898	3
1899	15
1900	5
1901	4
1902	8
1903	18
1904	30
1905	3
1906	53
1907	10
1908	11
1909	25
1910	11
1911	8
1912	7
1913	23
1914	37
1915	47
1916	38
1917	83
1918	49
1919	14
1920	75
1921	54
1922	35
1923	62
1924	535
1925	103
1926	157
1927	447
1928	206
1929	132
1930	616
1931	112
1932	167
1933	572
1934	255
1935	771
1936	314
1937	852
1938	250
1939	305
1940	562
1941	205
1942	522
1943	1,168
1944	324
1945	290
1946	339
1947	205
1948	387
1949	452
1950	643
1951	367
1952	436
1953	325
1954	1,094
1955	399
1956	653
1957	527
1958	506
1959	936
1960	319
1961	746
1962	741
1963	761
1964	771
1965	251
1966	636
1967	511
1968	1,179
1969	927
1970	1,770
1971	672
1972	598
1973	573
1974	992
1975	496
1976	860
1977	549
1978	1,301
1979	1,675
1980	425
1981	972
1982	1,339
1983	1,179
1984	2,132
1985	2,457
1986	883
1987	934
1988	771
1989	511
1990	927
1991	559
1992	447
1993	1,763
1994	1,195
1995	1,276
1996	528
1997	950
1998	606
1999	1,387
2000	686
2001	736
2002	796
2003	690
2004	535
2005	1,111
2006	1,116
2007	1,955
2008	1,061
2009	788
2010	1,166
2011	836
2012	1,148
2013	455
2014	522
2015	426
2016	580
2017	1,248
2018	664
2019	526
2020	894
2021	626
2022	430
2023	517
2024	1,015
2025	1,386
2026	201

Download the Data

Data for records on 1964-01-21: 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 100	615
100 to 200	11
200 to 300	5
300 to 400	3
400 to 500	1