Weather Records on 12 April 1975

704 weather records were set or tied worldwide on 12 April 1975. Highest significance: Bowman, US.

Key Facts for 12 April 1975

On 12 April 1975, 704 weather records were set or tied at long-record stations worldwide.
170 were record highs and 239 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 15 monthly and 687 daily.
Bowman set a daily record snow depth of 38.1 cm (15.0 in) on 12 April 1975.
Across 161 earlier years (1793 to 2026) the same calendar date averaged 500 records.

Record Map

704 stations

704 station records on 12 April 1975 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 April 1975: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bowman	United States	Record snow depth	38.1 cm (15.0 in)	62 of 100 (Major)
Tres Piedras	United States	Record daily snowfall	30.5 cm (12.0 in)	61 of 100 (Major)
Poplar 2 E	United States	Record snow depth	15.2 cm (6.0 in)	57 of 100 (Notable)
Mandan Exp STN	United States	Record snow depth	17.8 cm (7.0 in)	57 of 100 (Notable)
Monticello 2E	United States	Record daily snowfall	12.7 cm (5.0 in)	56 of 100 (Notable)
Medicine Lake 3 SE	United States	Record snow depth	55.9 cm (22.0 in)	54 of 100 (Notable)
Great Falls AP	United States	Record snow depth	30.5 cm (12.0 in)	54 of 100 (Notable)
Ovando	United States	Record snow depth	33.0 cm (13.0 in)	51 of 100 (Notable)
Los Alamos	United States	Record daily snowfall	50.8 cm (20.0 in)	51 of 100 (Notable)
Eureka	United States	Record snow depth	33.0 cm (13.0 in)	50 of 100 (Notable)
Newport	United States	Record snow depth	30.5 cm (12.0 in)	50 of 100 (Notable)
Northdale	United States	Record daily snowfall	15.2 cm (6.0 in)	49 of 100 (Notable)
Golden	United States	Record daily precipitation	35.6 mm (1.4 in)	49 of 100 (Notable)
Tres Piedras	United States	Record daily precipitation	30.5 mm (1.2 in)	49 of 100 (Notable)
Saguache	United States	Record daily snowfall	11.4 cm (4.5 in)	48 of 100 (Notable)
Pecos Nm	United States	Record daily snowfall	20.3 cm (8.0 in)	48 of 100 (Notable)
Pasamonte	United States	Record daily snowfall	7.6 cm (3.0 in)	46 of 100 (Notable)
Rawsonville (Pol)	South Africa	Record daily precipitation	83.5 mm (3.3 in)	45 of 100 (Notable)
Sidney	United States	Record snow depth	10.2 cm (4.0 in)	45 of 100 (Notable)
Butte Bert Mooney AP	United States	Record snow depth	30.5 cm (12.0 in)	45 of 100 (Notable)
Belya	Russia	Record daily precipitation	29.8 mm (1.2 in)	44 of 100 (Notable)
Vallecito Dam	United States	Record daily snowfall	50.8 cm (20.0 in)	44 of 100 (Notable)
Chazy	United States	Record snow depth	15.2 cm (6.0 in)	44 of 100 (Notable)
Redig 11 NE	United States	Record snow depth	30.5 cm (12.0 in)	43 of 100 (Notable)
Ekaterinburg	Russia	Record high minimum temperature	8.8 C (47.8 F)	42 of 100 (Notable)
Yale 1 NNW	United States	Record snow depth	20.3 cm (8.0 in)	42 of 100 (Notable)
Priest Rvr Exp STN	United States	Record snow depth	27.9 cm (11.0 in)	41 of 100 (Notable)
Eumundi - Crescent Rd	Australia	Record daily precipitation	76.2 mm (3.0 in)	39 of 100 (Notable)
Mayo A	Canada	Record daily snowfall	10.7 cm (4.2 in)	39 of 100 (Notable)
Los Alamos	United States	Record daily precipitation	50.8 mm (2.0 in)	39 of 100 (Notable)
Pagosa Springs 1SE	United States	Record daily snowfall	15.2 cm (6.0 in)	38 of 100 (Notable)
Rico	United States	Record daily snowfall	25.4 cm (10.0 in)	38 of 100 (Notable)
Bloomfield 3 SE	United States	Record daily precipitation	32.5 mm (1.3 in)	38 of 100 (Notable)
Cambridge Galt Moe	Canada	Record low minimum temperature	-7.8 C (18.0 F)	37 of 100 (Notable)
Tacoma	United States	Record daily precipitation	36.8 mm (1.4 in)	37 of 100 (Notable)
Broadwater Sugar Mill	Australia	Record daily precipitation	72.0 mm (2.8 in)	36 of 100 (Notable)
Buena Vista 2S	United States	Record daily snowfall	7.6 cm (3.0 in)	36 of 100 (Notable)
Westby	United States	Record snow depth	45.7 cm (18.0 in)	36 of 100 (Notable)
Bancroft	Canada	Record low minimum temperature	-16.7 C (1.9 F)	35 of 100 (Notable)
Lake City	United States	Record daily snowfall	14.0 cm (5.5 in)	35 of 100 (Notable)
Tacoma	United States	Record daily snowfall	71.1 cm (28.0 in)	35 of 100 (Notable)
Virginia	United States	Record snow depth	50.8 cm (20.0 in)	35 of 100 (Notable)
Biskra	Algeria	Record low maximum temperature	14.0 C (57.2 F)	34 of 100 (Routine)
Wadena 3 S	United States	Record snow depth	20.3 cm (8.0 in)	34 of 100 (Routine)
Cascade 5 S	United States	Record snow depth	12.7 cm (5.0 in)	34 of 100 (Routine)
Mosquero 1 NE	United States	Record daily snowfall	7.6 cm (3.0 in)	34 of 100 (Routine)
Hettinger	United States	Record snow depth	17.8 cm (7.0 in)	34 of 100 (Routine)
Zhitckovichi	Belarus	Record daily precipitation	30.3 mm (1.2 in)	33 of 100 (Routine)
Waterdale	United States	Record daily snowfall	5.1 cm (2.0 in)	33 of 100 (Routine)
Millington 1 SE	United States	Record low minimum temperature	-5.6 C (21.9 F)	33 of 100 (Routine)
Worland	United States	Record low minimum temperature	-12.2 C (10.0 F)	33 of 100 (Routine)
Ignacio 1 N	United States	Record snow depth	12.7 cm (5.0 in)	32 of 100 (Routine)
Auburn 2 SSE	United States	Record low minimum temperature	-5.6 C (21.9 F)	32 of 100 (Routine)
Goldbutte 7 N	United States	Record snow depth	40.6 cm (16.0 in)	32 of 100 (Routine)
Derry 4 SW	United States	Record low maximum temperature	1.1 C (34.0 F)	32 of 100 (Routine)
Butte Bert Mooney AP	United States	Record low minimum temperature	-16.7 C (1.9 F)	32 of 100 (Routine)
Inverness 3 SE	United States	Record daily precipitation	58.4 mm (2.3 in)	31 of 100 (Routine)
Baldwin	United States	Record low minimum temperature	-11.1 C (12.0 F)	31 of 100 (Routine)
Laguna	United States	Record low maximum temperature	6.7 C (44.1 F)	31 of 100 (Routine)
Maroochydore Swan Bowls Club	Australia	Record daily precipitation	89.4 mm (3.5 in)	30 of 100 (Routine)

Counts by Type and Timescale

704 records

Records set or tied on 12 April 1975 by type: Highest daily maximum 84, Lowest daily maximum 70, Highest daily minimum 86, Lowest daily minimum 169, Heaviest daily rainfall 186, Heaviest daily snowfall 38, Deepest snow cover 71.

Records on 12 April 1975 by type
Record type	Records
Highest daily maximum	84
Lowest daily maximum	70
Highest daily minimum	86
Lowest daily minimum	169
Heaviest daily rainfall	186
Heaviest daily snowfall	38
Deepest snow cover	71

Records on 12 April 1975 by timescale: all-time 2, monthly 15, daily 687.

How Much Records Were Beaten By

581 broken records

Margins by which the 581 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 534.0. Ties are not counted.

Top 20 by Significance

12 April 1975

Top 20 records on 12 April 1975 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 April 1975	Bowman, US	daily snow depth	38.1 cm (15.0 in)	35.6 cm (14.0 in)	56 years	62 of 100 (Major)
12 April 1975	Tres Piedras, US	daily snowfall	30.5 cm (12.0 in)	28.0 cm (11.0 in)	48 years	61 of 100 (Major)
12 April 1975	Poplar 2 E, US	daily snow depth	15.2 cm (6.0 in)	15.2 cm (6.0 in)	60 years	57 of 100 (Notable)
12 April 1975	Mandan Exp STN, US	daily snow depth	17.8 cm (7.0 in)	17.8 cm (7.0 in)	60 years	57 of 100 (Notable)
12 April 1975	Monticello 2E, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	72 years	56 of 100 (Notable)
12 April 1975	Medicine Lake 3 SE, US	daily snow depth	55.9 cm (22.0 in)	53.4 cm (21.0 in)	26 years	54 of 100 (Notable)
12 April 1975	Great Falls AP, US	daily snow depth	30.5 cm (12.0 in)	30.5 cm (12.0 in)	37 years	54 of 100 (Notable)
12 April 1975	Ovando, US	daily snow depth	33.0 cm (13.0 in)	33.0 cm (13.0 in)	36 years	51 of 100 (Notable)
12 April 1975	Los Alamos, US	all-time snowfall	50.8 cm (20.0 in)	5.1 cm (2.0 in)	59 years	51 of 100 (Notable)
12 April 1975	Eureka, US	daily snow depth	33.0 cm (13.0 in)	27.9 cm (11.0 in)	4 years	50 of 100 (Notable)
12 April 1975	Newport, US	daily snow depth	30.5 cm (12.0 in)	30.5 cm (12.0 in)	48 years	50 of 100 (Notable)
12 April 1975	Northdale, US	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	44 years	49 of 100 (Notable)
12 April 1975	Golden, US	daily rain	35.6 mm (1.4 in)	28.0 mm (1.1 in)	16 years	49 of 100 (Notable)
12 April 1975	Tres Piedras, US	daily rain	30.5 mm (1.2 in)	22.1 mm (0.9 in)	16 years	49 of 100 (Notable)
12 April 1975	Saguache, US	daily snowfall	11.4 cm (4.5 in)	10.1 cm (4.0 in)	78 years	48 of 100 (Notable)
12 April 1975	Pecos Nm, US	daily snowfall	20.3 cm (8.0 in)	17.8 cm (7.0 in)	52 years	48 of 100 (Notable)
12 April 1975	Pasamonte, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	64 years	46 of 100 (Notable)
12 April 1975	Rawsonville (Pol), ZA	monthly rain	83.5 mm (3.3 in)	10.9 mm (0.4 in)	67 years	45 of 100 (Notable)
12 April 1975	Sidney, US	daily snow depth	10.2 cm (4.0 in)	10.2 cm (4.0 in)	64 years	45 of 100 (Notable)
12 April 1975	Butte Bert Mooney AP, US	daily snow depth	30.5 cm (12.0 in)	20.3 cm (8.0 in)	8 years	45 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 1975

Records set or tied on this calendar date in each year from 1793 to 1975. 1975 had 704 records.

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

Records on 04-12 in each year
Year	Records
1793	1
1805	1
1810	1
1812	2
1817	2
1826	1
1831	1
1845	1
1850	1
1854	1
1865	2
1866	2
1868	4
1869	5
1871	1
1873	1
1874	5
1876	2
1877	1
1878	1
1879	4
1881	1
1882	1
1885	2
1889	4
1890	10
1891	3
1892	2
1893	4
1894	1
1895	1
1896	1
1897	4
1898	4
1899	5
1900	6
1901	5
1902	3
1903	10
1904	11
1905	19
1906	24
1907	5
1908	10
1909	16
1910	15
1911	26
1912	48
1913	88
1914	41
1915	125
1916	37
1917	33
1918	40
1919	39
1920	148
1921	34
1922	48
1923	134
1924	69
1925	178
1926	347
1927	179
1928	145
1929	141
1930	638
1931	267
1932	253
1933	551
1934	531
1935	171
1936	277
1937	236
1938	175
1939	1,174
1940	1,407
1941	869
1942	191
1943	614
1944	423
1945	884
1946	347
1947	733
1948	1,496
1949	358
1950	638
1951	1,102
1952	455
1953	707
1954	424
1955	611
1956	382
1957	910
1958	542
1959	513
1960	314
1961	551
1962	510
1963	518
1964	363
1965	659
1966	520
1967	682
1968	717
1969	352
1970	568
1971	587
1972	1,316
1973	903
1974	822
1975	704
1976	1,076
1977	1,069
1978	533
1979	1,096
1980	611
1981	1,068
1982	852
1983	877
1984	671
1985	734
1986	1,350
1987	606
1988	1,369
1989	1,838
1990	946
1991	1,484
1992	1,000
1993	586
1994	1,375
1995	1,173
1996	994
1997	3,094
1998	1,409
1999	873
2000	784
2001	1,369
2002	600
2003	1,079
2004	964
2005	536
2006	796
2007	1,144
2008	1,015
2009	811
2010	935
2011	1,026
2012	666
2013	1,039
2014	597
2015	504
2016	595
2017	519
2018	868
2019	685
2020	1,150
2021	710
2022	1,862
2023	1,262
2024	1,086
2025	1,281
2026	622

Download the Data

Data for records on 1975-04-12: 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 2026-10-18. Last revised 18 October 2026 (2026-10-18).

Margin	Records
0 to 100	538
100 to 200	27
200 to 300	10
300 to 400	5
400 to 500	0
500 to 600	1