Weather Records on 21 January 1975

496 weather records were set or tied worldwide on 21 January 1975. Highest significance: Tasiilaq, GL.

Key Facts for 21 January 1975

On 21 January 1975, 496 weather records were set or tied at long-record stations worldwide.
90 were record highs and 133 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 9 monthly and 486 daily.
Tasiilaq set a daily record precipitation of 70.4 mm (2.8 in) on 21 January 1975.
Across 163 earlier years (1793 to 2026) the same calendar date averaged 467 records.

Record Map

496 stations

496 station records on 21 January 1975 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 January 1975: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tasiilaq	Greenland [Denmark]	Record daily precipitation	70.4 mm (2.8 in)	65 of 100 (Major)
Euclides da Cunha (Cumbe)	Brazil	Record daily precipitation	97.5 mm (3.8 in)	54 of 100 (Notable)
Ponte Do Licinio	Brazil	Record daily precipitation	117.5 mm (4.6 in)	53 of 100 (Notable)
Lerma	Mexico	Record daily precipitation	33.8 mm (1.3 in)	49 of 100 (Notable)
Monte Santo	Brazil	Record daily precipitation	94.0 mm (3.7 in)	47 of 100 (Notable)
Farmville	United States	Record daily snowfall	11.4 cm (4.5 in)	46 of 100 (Notable)
Cape St James	Canada	Record daily precipitation	56.6 mm (2.2 in)	44 of 100 (Notable)
Jardim	Brazil	Record daily precipitation	85.2 mm (3.4 in)	42 of 100 (Notable)
Senhor Do Bonfim	Brazil	Record daily precipitation	89.0 mm (3.5 in)	41 of 100 (Notable)
St Andrews	Canada	Record low minimum temperature	-22.8 C (-9.0 F)	38 of 100 (Notable)
Acude Ceraima	Brazil	Record daily precipitation	87.4 mm (3.4 in)	37 of 100 (Notable)
Usina Parauna	Brazil	Record daily precipitation	81.6 mm (3.2 in)	36 of 100 (Notable)
Izana	Spain	Record daily precipitation	56.6 mm (2.2 in)	36 of 100 (Notable)
Yosemite Park HQ	United States	Record high maximum temperature	18.9 C (66.0 F)	35 of 100 (Notable)
Acambaro	Mexico	Record low maximum temperature	11.1 C (52.0 F)	33 of 100 (Routine)
Santa Cruz Juventino Rosas (S	Mexico	Record low maximum temperature	15.0 C (59.0 F)	33 of 100 (Routine)
Sackville	Canada	Record low minimum temperature	-25.6 C (-14.1 F)	32 of 100 (Routine)
Malhada Real	Brazil	Record daily precipitation	49.0 mm (1.9 in)	31 of 100 (Routine)
Porto Alegre	Brazil	Record daily precipitation	61.2 mm (2.4 in)	31 of 100 (Routine)
Palmas de Monte Alto	Brazil	Record daily precipitation	51.3 mm (2.0 in)	31 of 100 (Routine)
Clarke City	Canada	Record low minimum temperature	-38.9 C (-38.0 F)	31 of 100 (Routine)
Salamanca	Mexico	Record low maximum temperature	13.9 C (57.0 F)	31 of 100 (Routine)
Ebenezer (Weltevrede)	South Africa	Record daily precipitation	35.5 mm (1.4 in)	31 of 100 (Routine)
North Lake	United States	Record daily snowfall	12.7 cm (5.0 in)	31 of 100 (Routine)
Ruy Barbosa	Brazil	Record daily precipitation	70.0 mm (2.8 in)	30 of 100 (Routine)
Pindai	Brazil	Record daily precipitation	102.0 mm (4.0 in)	30 of 100 (Routine)
Tarandacuao	Mexico	Record low maximum temperature	11.7 C (53.1 F)	30 of 100 (Routine)
La Poza Grande	Mexico	Record high maximum temperature	35.6 C (96.1 F)	29 of 100 (Routine)
Angamacutiro	Mexico	Record low maximum temperature	16.1 C (61.0 F)	29 of 100 (Routine)
Longmont 2 ESE	United States	Record daily snowfall	5.1 cm (2.0 in)	29 of 100 (Routine)
Trinidad	United States	Record daily snowfall	8.9 cm (3.5 in)	29 of 100 (Routine)
Floyd 2 NE	United States	Record daily snowfall	15.2 cm (6.0 in)	29 of 100 (Routine)
Itapicuru	Brazil	Record daily precipitation	48.3 mm (1.9 in)	28 of 100 (Routine)
Shahat	Libya	Record high maximum temperature	21.0 C (69.8 F)	28 of 100 (Routine)
Orenburg	Russia	Record high minimum temperature	-4.8 C (23.4 F)	28 of 100 (Routine)
Mvenyane	South Africa	Record daily precipitation	31.0 mm (1.2 in)	28 of 100 (Routine)
Paso Robles	United States	Record high maximum temperature	24.4 C (75.9 F)	28 of 100 (Routine)
Tehachapi	United States	Record high maximum temperature	20.6 C (69.1 F)	28 of 100 (Routine)
Del Norte 3ENE	United States	Record daily snowfall	14.2 cm (5.6 in)	28 of 100 (Routine)
Hawthorne	United States	Record daily snowfall	16.5 cm (6.5 in)	28 of 100 (Routine)
Judal Station	Australia	Record daily precipitation	40.0 mm (1.6 in)	27 of 100 (Routine)
Curvelo	Brazil	Record daily precipitation	71.0 mm (2.8 in)	27 of 100 (Routine)
Caninde de Sao Francisco	Brazil	Record daily precipitation	74.2 mm (2.9 in)	27 of 100 (Routine)
Lerma	Mexico	Record low maximum temperature	8.9 C (48.0 F)	27 of 100 (Routine)
Cambridge	United States	Record high minimum temperature	0.6 C (33.1 F)	27 of 100 (Routine)
Ipanema	Brazil	Record daily precipitation	122.6 mm (4.8 in)	26 of 100 (Routine)
Mandiroba (Laranjeiras)	Brazil	Record daily precipitation	90.3 mm (3.6 in)	26 of 100 (Routine)
Barrage Mattawin	Canada	Record daily snowfall	12.4 cm (4.9 in)	26 of 100 (Routine)
Coalcoman (Smn)	Mexico	Record low maximum temperature	20.0 C (68.0 F)	26 of 100 (Routine)
Pau Ferro	Brazil	Record daily precipitation	36.8 mm (1.4 in)	25 of 100 (Routine)
Kustanai	Kazakhstan	Record high maximum temperature	-3.5 C (25.7 F)	25 of 100 (Routine)
Pericos	Mexico	Record low maximum temperature	13.9 C (57.0 F)	25 of 100 (Routine)
Tezontepec (Smn)	Mexico	Record low maximum temperature	10.6 C (51.1 F)	25 of 100 (Routine)
Selagoncy	Russia	Record high minimum temperature	-23.3 C (-9.9 F)	25 of 100 (Routine)
Bailey	United States	Record daily snowfall	8.9 cm (3.5 in)	25 of 100 (Routine)
Winchester Airport 3 E	United States	Record snow depth	10.2 cm (4.0 in)	25 of 100 (Routine)
Little Falls 2NNE	United States	Record snow depth	94.0 cm (37.0 in)	25 of 100 (Routine)
Arteaga	Mexico	Record low maximum temperature	18.3 C (64.9 F)	24 of 100 (Routine)
Temascales	Mexico	Record low maximum temperature	7.8 C (46.0 F)	24 of 100 (Routine)
Balcon Diablo	Mexico	Record low maximum temperature	13.9 C (57.0 F)	24 of 100 (Routine)

Counts by Type and Timescale

496 records

Records set or tied on 21 January 1975 by type: Highest daily maximum 51, Lowest daily maximum 67, Highest daily minimum 39, Lowest daily minimum 66, Heaviest daily rainfall 200, Heaviest daily snowfall 57, Deepest snow cover 16.

Records on 21 January 1975 by type
Record type	Records
Highest daily maximum	51
Lowest daily maximum	67
Highest daily minimum	39
Lowest daily minimum	66
Heaviest daily rainfall	200
Heaviest daily snowfall	57
Deepest snow cover	16

Records on 21 January 1975 by timescale: all-time 1, monthly 9, daily 486.

How Much Records Were Beaten By

412 broken records

Margins by which the 412 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 305.0. Ties are not counted.

Top 20 by Significance

21 January 1975

Top 20 records on 21 January 1975 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 January 1975	Tasiilaq, GL	daily rain	70.4 mm (2.8 in)	32.5 mm (1.3 in)	60 years	65 of 100 (Major)
21 January 1975	Euclides da Cunha (Cumbe), BR	daily rain	97.5 mm (3.8 in)	72.0 mm (2.8 in)	28 years	54 of 100 (Notable)
21 January 1975	Ponte Do Licinio, BR	monthly rain	117.5 mm (4.6 in)	38.2 mm (1.5 in)	33 years	53 of 100 (Notable)
21 January 1975	Lerma, MX	daily rain	33.8 mm (1.3 in)	33.8 mm (1.3 in)	32 years	49 of 100 (Notable)
21 January 1975	Monte Santo, BR	daily rain	94.0 mm (3.7 in)	48.0 mm (1.9 in)	36 years	47 of 100 (Notable)
21 January 1975	Farmville, US	daily snowfall	11.4 cm (4.5 in)	11.4 cm (4.5 in)	76 years	46 of 100 (Notable)
21 January 1975	Cape St James, CA	monthly rain	56.6 mm (2.2 in)	15.7 mm (0.6 in)	20 years	44 of 100 (Notable)
21 January 1975	Jardim, BR	daily rain	85.2 mm (3.4 in)	36.6 mm (1.4 in)	59 years	42 of 100 (Notable)
21 January 1975	Senhor Do Bonfim, BR	monthly rain	89.0 mm (3.5 in)	16.1 mm (0.6 in)	47 years	41 of 100 (Notable)
21 January 1975	St Andrews, CA	daily low min	-22.8 C (-9.0 F)	1.1 C (2.0 F)	95 years	38 of 100 (Notable)
21 January 1975	Acude Ceraima, BR	daily rain	87.4 mm (3.4 in)	56.0 mm (2.2 in)	9 years	37 of 100 (Notable)
21 January 1975	Usina Parauna, BR	daily rain	81.6 mm (3.2 in)	41.8 mm (1.6 in)	17 years	36 of 100 (Notable)
21 January 1975	Izana, ES	daily rain	56.6 mm (2.2 in)	40.3 mm (1.6 in)	39 years	36 of 100 (Notable)
21 January 1975	Yosemite Park HQ, US	daily high max	18.9 C (66.0 F)	3.9 C (7.0 F)	64 years	35 of 100 (Notable)
21 January 1975	Acambaro, MX	daily low max	11.1 C (52.0 F)	7.2 C (13.0 F)	16 years	33 of 100 (Routine)
21 January 1975	Santa Cruz Juventino Rosas (S, MX	daily low max	15.0 C (59.0 F)	5.0 C (9.0 F)	44 years	33 of 100 (Routine)
21 January 1975	Sackville, CA	daily low min	-25.6 C (-14.1 F)	0.6 C (1.1 F)	77 years	32 of 100 (Routine)
21 January 1975	Malhada Real, BR	daily rain	49.0 mm (1.9 in)	33.7 mm (1.3 in)	36 years	31 of 100 (Routine)
21 January 1975	Porto Alegre, BR	daily rain	61.2 mm (2.4 in)	45.8 mm (1.8 in)	11 years	31 of 100 (Routine)
21 January 1975	Palmas de Monte Alto, BR	daily rain	51.3 mm (2.0 in)	13.3 mm (0.5 in)	63 years	31 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 1975

Records set or tied on this calendar date in each year from 1793 to 1975. 1975 had 496 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 1975-01-21: 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 50	387
50 to 100	20
100 to 150	3
150 to 200	1
200 to 250	0
250 to 300	0
300 to 350	1