Weather Records on 17 January 1975

647 weather records were set or tied worldwide on 17 January 1975. Highest significance: Ignacio Allende, MX.

Key Facts for 17 January 1975

On 17 January 1975, 647 weather records were set or tied at long-record stations worldwide.
395 were record highs and 31 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 34 monthly and 612 daily.
Ignacio Allende set a monthly record daily precipitation of 74.9 mm (2.9 in) on 17 January 1975.
Across 168 earlier years (1795 to 2026) the same calendar date averaged 474 records.

Record Map

647 stations

647 station records on 17 January 1975 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 January 1975: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ignacio Allende	Mexico	Record daily precipitation	74.9 mm (2.9 in)	62 of 100 (Major)
Okanagan Centre	Canada	Record daily snowfall	36.8 cm (14.5 in)	61 of 100 (Major)
Fauquier	Canada	Record daily snowfall	29.5 cm (11.6 in)	56 of 100 (Notable)
Vernon Coldstream Ranch	Canada	Record daily precipitation	31.5 mm (1.2 in)	53 of 100 (Notable)
Vernon Coldstream Ranch	Canada	Record daily snowfall	31.5 cm (12.4 in)	53 of 100 (Notable)
Cayo Arenas	Mexico	Record daily precipitation	64.8 mm (2.6 in)	50 of 100 (Notable)
De Kroon (Irr)	South Africa	Record daily precipitation	65.0 mm (2.6 in)	48 of 100 (Notable)
Sedro-Woolley	United States	Record daily precipitation	49.5 mm (1.9 in)	48 of 100 (Notable)
Idalia	South Africa	Record daily precipitation	83.0 mm (3.3 in)	47 of 100 (Notable)
King Junction	Australia	Record daily precipitation	90.4 mm (3.6 in)	46 of 100 (Notable)
Springs-Olympia Park	South Africa	Record daily precipitation	76.8 mm (3.0 in)	46 of 100 (Notable)
Groot Rietvlei	South Africa	Record daily precipitation	78.0 mm (3.1 in)	45 of 100 (Notable)
Bloomsbury Post Office	Australia	Record daily precipitation	117.0 mm (4.6 in)	44 of 100 (Notable)
Esmeralda Station	Australia	Record daily precipitation	146.0 mm (5.7 in)	43 of 100 (Notable)
Bellingham 2 N	United States	Record daily precipitation	43.4 mm (1.7 in)	42 of 100 (Notable)
Concrete Ppl Fish STN	United States	Record daily precipitation	55.4 mm (2.2 in)	40 of 100 (Notable)
Westwold	Canada	Record daily precipitation	25.4 mm (1.0 in)	39 of 100 (Notable)
Westwold	Canada	Record daily snowfall	25.4 cm (10.0 in)	39 of 100 (Notable)
Brakpan (Mun)	South Africa	Record daily precipitation	57.5 mm (2.3 in)	39 of 100 (Notable)
Rosherville (Pow)	South Africa	Record daily precipitation	68.0 mm (2.7 in)	37 of 100 (Notable)
Kaalplaas	South Africa	Record daily precipitation	62.9 mm (2.5 in)	36 of 100 (Notable)
Blaine	United States	Record daily precipitation	41.9 mm (1.6 in)	36 of 100 (Notable)
Deer Park	Canada	Record daily snowfall	20.8 cm (8.2 in)	35 of 100 (Notable)
Petford	Australia	Record daily precipitation	100.0 mm (3.9 in)	34 of 100 (Routine)
La Poza Grande	Mexico	Record high maximum temperature	36.7 C (98.1 F)	33 of 100 (Routine)
Bomnak	Russia	Record high minimum temperature	-16.1 C (3.0 F)	33 of 100 (Routine)
Visby_Flygplats	Sweden	Record high maximum temperature	7.7 C (45.9 F)	33 of 100 (Routine)
Mc Minnville	United States	Record high maximum temperature	16.1 C (61.0 F)	33 of 100 (Routine)
Arhangelsk	Russia	Record high minimum temperature	2.5 C (36.5 F)	32 of 100 (Routine)
Angelica	United States	Record daily snowfall	10.2 cm (4.0 in)	32 of 100 (Routine)
Clearbrook	United States	Record daily precipitation	52.3 mm (2.1 in)	32 of 100 (Routine)
Startup 1 E	United States	Record daily precipitation	54.4 mm (2.1 in)	32 of 100 (Routine)
Salzburg	Austria	Record high maximum temperature	12.8 C (55.0 F)	31 of 100 (Routine)
Summerland Cda	Canada	Record daily snowfall	19.1 cm (7.5 in)	31 of 100 (Routine)
Coral Harbour A	Canada	Record low minimum temperature	-52.8 C (-63.0 F)	31 of 100 (Routine)
Irapuato	Mexico	Record low minimum temperature	-2.2 C (28.0 F)	31 of 100 (Routine)
Kargopol	Russia	Record high minimum temperature	0.2 C (32.4 F)	31 of 100 (Routine)
Wittebank	South Africa	Record daily precipitation	60.5 mm (2.4 in)	31 of 100 (Routine)
Salem AP (McNary Field)	United States	Record high maximum temperature	16.1 C (61.0 F)	31 of 100 (Routine)
Bjelasnica	Bosnia and Herzegovina	Record high minimum temperature	-1.0 C (30.2 F)	30 of 100 (Routine)
Baddeck	Canada	Record daily snowfall	15.2 cm (6.0 in)	30 of 100 (Routine)
Blagovescensk	Russia	Record high minimum temperature	-15.3 C (4.5 F)	30 of 100 (Routine)
Heppner	United States	Record high maximum temperature	16.7 C (62.1 F)	30 of 100 (Routine)
Port Aux Basques	Canada	Record daily snowfall	19.8 cm (7.8 in)	29 of 100 (Routine)
Mazanovo	Russia	Record high minimum temperature	-15.0 C (5.0 F)	29 of 100 (Routine)
Villa Nora (Pol)	South Africa	Record daily precipitation	58.0 mm (2.3 in)	29 of 100 (Routine)
Karlshamn	Sweden	Record high maximum temperature	7.5 C (45.5 F)	29 of 100 (Routine)
Stillwater Rsvr	United States	Record daily snowfall	29.2 cm (11.5 in)	29 of 100 (Routine)
Georgetown Post Office	Australia	Record low maximum temperature	24.7 C (76.5 F)	28 of 100 (Routine)
Okanagan Centre	Canada	Record daily precipitation	36.8 mm (1.4 in)	28 of 100 (Routine)
Iron River	Canada	Record daily snowfall	6.4 cm (2.5 in)	28 of 100 (Routine)
Ust Tzilma	Russia	Record high maximum temperature	3.1 C (37.6 F)	28 of 100 (Routine)
Norsk	Russia	Record high minimum temperature	-12.0 C (10.4 F)	28 of 100 (Routine)
Seeley Lake Rs	United States	Record daily precipitation	30.2 mm (1.2 in)	28 of 100 (Routine)
Virginia City	United States	Record high minimum temperature	4.4 C (39.9 F)	28 of 100 (Routine)
Prestwood Station	Australia	Record daily precipitation	85.6 mm (3.4 in)	27 of 100 (Routine)
Keg River	Canada	Record daily snowfall	8.9 cm (3.5 in)	27 of 100 (Routine)
Glen Morgan	South Africa	Record daily precipitation	55.0 mm (2.2 in)	27 of 100 (Routine)
Reitz 36	South Africa	Record daily precipitation	39.0 mm (1.5 in)	27 of 100 (Routine)
Oranjeville (Skl)	South Africa	Record daily precipitation	62.0 mm (2.4 in)	27 of 100 (Routine)

Counts by Type and Timescale

647 records

Records set or tied on 17 January 1975 by type: Highest daily maximum 220, Lowest daily maximum 7, Highest daily minimum 175, Lowest daily minimum 24, Heaviest daily rainfall 166, Heaviest daily snowfall 40, Deepest snow cover 15.

Records on 17 January 1975 by type
Record type	Records
Highest daily maximum	220
Lowest daily maximum	7
Highest daily minimum	175
Lowest daily minimum	24
Heaviest daily rainfall	166
Heaviest daily snowfall	40
Deepest snow cover	15

Records on 17 January 1975 by timescale: all-time 1, monthly 34, daily 612.

How Much Records Were Beaten By

568 broken records

Margins by which the 568 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 304.0. Ties are not counted.

Top 20 by Significance

17 January 1975

Top 20 records on 17 January 1975 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 January 1975	Ignacio Allende, MX	monthly rain	74.9 mm (2.9 in)	50.0 mm (2.0 in)	30 years	62 of 100 (Major)
17 January 1975	Okanagan Centre, CA	monthly snowfall	36.8 cm (14.5 in)	17.7 cm (7.0 in)	22 years	61 of 100 (Major)
17 January 1975	Fauquier, CA	daily snowfall	29.5 cm (11.6 in)	19.3 cm (7.6 in)	36 years	56 of 100 (Notable)
17 January 1975	Vernon Coldstream Ranch, CA	monthly rain	31.5 mm (1.2 in)	6.1 mm (0.24 in)	72 years	53 of 100 (Notable)
17 January 1975	Vernon Coldstream Ranch, CA	monthly snowfall	31.5 cm (12.4 in)	6.1 cm (2.4 in)	72 years	53 of 100 (Notable)
17 January 1975	Cayo Arenas, MX	daily rain	64.8 mm (2.6 in)	63.0 mm (2.5 in)	32 years	50 of 100 (Notable)
17 January 1975	De Kroon (Irr), ZA	daily rain	65.0 mm (2.6 in)	38.8 mm (1.5 in)	44 years	48 of 100 (Notable)
17 January 1975	Sedro-Woolley, US	daily rain	49.5 mm (1.9 in)	21.6 mm (0.9 in)	55 years	48 of 100 (Notable)
17 January 1975	Idalia, ZA	daily rain	83.0 mm (3.3 in)	43.6 mm (1.7 in)	44 years	47 of 100 (Notable)
17 January 1975	King Junction, AU	daily rain	90.4 mm (3.6 in)	49.8 mm (2.0 in)	48 years	46 of 100 (Notable)
17 January 1975	Springs-Olympia Park, ZA	daily rain	76.8 mm (3.0 in)	37.4 mm (1.5 in)	24 years	46 of 100 (Notable)
17 January 1975	Groot Rietvlei, ZA	daily rain	78.0 mm (3.1 in)	44.7 mm (1.8 in)	44 years	45 of 100 (Notable)
17 January 1975	Bloomsbury Post Office, AU	daily rain	117.0 mm (4.6 in)	47.1 mm (1.9 in)	80 years	44 of 100 (Notable)
17 January 1975	Esmeralda Station, AU	daily rain	146.0 mm (5.7 in)	78.7 mm (3.1 in)	24 years	43 of 100 (Notable)
17 January 1975	Bellingham 2 N, US	daily rain	43.4 mm (1.7 in)	15.2 mm (0.6 in)	55 years	42 of 100 (Notable)
17 January 1975	Concrete Ppl Fish STN, US	daily rain	55.4 mm (2.2 in)	17.8 mm (0.7 in)	64 years	40 of 100 (Notable)
17 January 1975	Westwold, CA	monthly rain	25.4 mm (1.0 in)	3.8 mm (0.15 in)	49 years	39 of 100 (Notable)
17 January 1975	Westwold, CA	monthly snowfall	25.4 cm (10.0 in)	3.8 cm (1.5 in)	49 years	39 of 100 (Notable)
17 January 1975	Brakpan (Mun), ZA	daily rain	57.5 mm (2.3 in)	31.6 mm (1.2 in)	39 years	39 of 100 (Notable)
17 January 1975	Rosherville (Pow), ZA	daily rain	68.0 mm (2.7 in)	35.6 mm (1.4 in)	8 years	37 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

1795 to 1975

Records set or tied on this calendar date in each year from 1795 to 1975. 1975 had 647 records.

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

Records on 01-17 in each year
Year	Records
1795	1
1800	2
1802	1
1804	1
1805	2
1809	1
1812	1
1820	1
1826	2
1828	1
1838	2
1845	3
1854	1
1858	1
1861	1
1864	3
1865	1
1866	1
1869	1
1870	2
1871	1
1874	1
1875	1
1876	2
1877	1
1878	1
1880	1
1881	2
1883	3
1884	1
1885	2
1886	1
1888	1
1889	4
1890	2
1891	4
1893	5
1894	5
1895	3
1896	4
1897	6
1899	5
1900	5
1901	1
1902	4
1903	3
1904	9
1905	2
1906	19
1907	38
1908	10
1909	13
1910	21
1911	49
1912	8
1913	66
1914	13
1915	19
1916	47
1917	32
1918	37
1919	45
1920	148
1921	70
1922	25
1923	122
1924	278
1925	184
1926	118
1927	144
1928	309
1929	118
1930	942
1931	130
1932	489
1933	203
1934	120
1935	444
1936	377
1937	196
1938	323
1939	375
1940	566
1941	644
1942	601
1943	1,086
1944	333
1945	511
1946	1,089
1947	354
1948	613
1949	566
1950	731
1951	535
1952	773
1953	531
1954	632
1955	303
1956	431
1957	1,040
1958	555
1959	760
1960	657
1961	537
1962	625
1963	537
1964	450
1965	1,180
1966	275
1967	423
1968	400
1969	526
1970	931
1971	871
1972	884
1973	1,147
1974	1,327
1975	647
1976	717
1977	2,352
1978	1,458
1979	1,182
1980	601
1981	821
1982	1,899
1983	592
1984	888
1985	988
1986	848
1987	1,375
1988	751
1989	745
1990	1,986
1991	776
1992	958
1993	1,685
1994	1,805
1995	1,186
1996	1,353
1997	791
1998	832
1999	775
2000	1,060
2001	744
2002	505
2003	764
2004	1,245
2005	682
2006	1,055
2007	1,911
2008	1,114
2009	851
2010	876
2011	972
2012	847
2013	643
2014	548
2015	489
2016	458
2017	1,002
2018	1,273
2019	582
2020	828
2021	375
2022	1,022
2023	808
2024	1,585
2025	586
2026	370

Download the Data

Data for records on 1975-01-17: 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	551
50 to 100	11
100 to 150	2
150 to 200	3
200 to 250	0
250 to 300	0
300 to 350	1