Weather Records on 12 May 1975

418 weather records were set or tied worldwide on 12 May 1975. Highest significance: Novosibirsk, RU.

Key Facts for 12 May 1975

On 12 May 1975, 418 weather records were set or tied at long-record stations worldwide.
124 were record highs and 57 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 11 monthly and 407 daily.
Novosibirsk set a daily record precipitation of 70.1 mm (2.8 in) on 12 May 1975.
Across 164 earlier years (1814 to 2026) the same calendar date averaged 453 records.

Record Map

418 stations

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

Weather records on 12 May 1975: highest significance records shown on the map
Station	Country	Type	Value	Significance
Novosibirsk	Russia	Record daily precipitation	70.1 mm (2.8 in)	56 of 100 (Notable)
Zacualtipan (Smn)	Mexico	Record daily precipitation	61.5 mm (2.4 in)	52 of 100 (Notable)
Linkoeping-Malmslaett	Sweden	Record daily precipitation	32.8 mm (1.3 in)	52 of 100 (Notable)
Vasterhaninge	Sweden	Record daily precipitation	25.7 mm (1.0 in)	51 of 100 (Notable)
Gustavsberg	Sweden	Record daily precipitation	27.5 mm (1.1 in)	51 of 100 (Notable)
Akron Washington Co AP	United States	Record daily precipitation	54.9 mm (2.2 in)	48 of 100 (Notable)
Grundsjon	Sweden	Record daily precipitation	29.0 mm (1.1 in)	47 of 100 (Notable)
Adelaide (Glen Osmond)	Australia	Record daily precipitation	30.6 mm (1.2 in)	46 of 100 (Notable)
Granshult	Sweden	Record daily precipitation	27.2 mm (1.1 in)	46 of 100 (Notable)
Tanunda	Australia	Record daily precipitation	45.0 mm (1.8 in)	45 of 100 (Notable)
Angaston	Australia	Record daily precipitation	40.0 mm (1.6 in)	44 of 100 (Notable)
Magiscatzin (Smn)	Mexico	Record daily precipitation	101.9 mm (4.0 in)	44 of 100 (Notable)
Toraliden	Sweden	Record daily precipitation	32.0 mm (1.3 in)	44 of 100 (Notable)
Tornby	Sweden	Record daily precipitation	25.0 mm (1.0 in)	44 of 100 (Notable)
Mexia	United States	Record daily precipitation	134.1 mm (5.3 in)	42 of 100 (Notable)
Goodland	United States	Record daily precipitation	30.7 mm (1.2 in)	42 of 100 (Notable)
Yungaburra	Australia	Record daily precipitation	38.0 mm (1.5 in)	41 of 100 (Notable)
Amealco	Mexico	Record low maximum temperature	13.9 C (57.0 F)	41 of 100 (Notable)
Minatitlan	Mexico	Record daily precipitation	77.0 mm (3.0 in)	41 of 100 (Notable)
Lommaryd	Sweden	Record daily precipitation	27.5 mm (1.1 in)	41 of 100 (Notable)
Alliance 1WNW	United States	Record daily precipitation	35.8 mm (1.4 in)	41 of 100 (Notable)
Podor	Senegal	Record high minimum temperature	30.0 C (86.0 F)	40 of 100 (Notable)
Rosedale (Turretfield Research	Australia	Record daily precipitation	29.0 mm (1.1 in)	39 of 100 (Notable)
Bartow 1SE	United States	Record daily precipitation	76.2 mm (3.0 in)	37 of 100 (Notable)
Julesburg	United States	Record daily precipitation	40.1 mm (1.6 in)	36 of 100 (Notable)
Pitea	Sweden	Record high minimum temperature	6.4 C (43.5 F)	35 of 100 (Notable)
Piranhas (Marechal Floriano)	Brazil	Record daily precipitation	60.5 mm (2.4 in)	34 of 100 (Routine)
Norjeby	Sweden	Record daily precipitation	25.0 mm (1.0 in)	34 of 100 (Routine)
Roanoke	United States	Record daily precipitation	62.2 mm (2.4 in)	34 of 100 (Routine)
Alta 1 NNW	United States	Record snow depth	50.8 cm (20.0 in)	34 of 100 (Routine)
Batesville	United States	Record daily precipitation	57.2 mm (2.3 in)	32 of 100 (Routine)
Gogland	Russia	Record high minimum temperature	11.1 C (52.0 F)	31 of 100 (Routine)
Ewa Plantation 741	United States	Record low minimum temperature	14.4 C (57.9 F)	31 of 100 (Routine)
Cimarron 4 SW	United States	Record low minimum temperature	-5.0 C (23.0 F)	30 of 100 (Routine)
Ciudad Victoria	Mexico	Record daily precipitation	60.0 mm (2.4 in)	29 of 100 (Routine)
Rosso	Mauritania	Record high minimum temperature	28.9 C (84.0 F)	28 of 100 (Routine)
San Francisco Tlalcilalcalpan	Mexico	Record low maximum temperature	10.0 C (50.0 F)	28 of 100 (Routine)
Vorogovo	Russia	Record daily precipitation	28.5 mm (1.1 in)	28 of 100 (Routine)
Falun	Sweden	Record high minimum temperature	9.6 C (49.3 F)	28 of 100 (Routine)
Ordway 4 W	United States	Record daily snowfall	5.1 cm (2.0 in)	27 of 100 (Routine)
Tartu-Toravere	Estonia	Record high minimum temperature	13.6 C (56.5 F)	26 of 100 (Routine)
Henichesk	Ukraine	Record high minimum temperature	16.7 C (62.1 F)	26 of 100 (Routine)
Homestead Exp STN	United States	Record daily precipitation	53.1 mm (2.1 in)	26 of 100 (Routine)
Fayette	United States	Record daily precipitation	26.9 mm (1.1 in)	26 of 100 (Routine)
Oujda	Morocco	Record low maximum temperature	19.0 C (66.2 F)	25 of 100 (Routine)
Los Herreras	Mexico	Record daily precipitation	48.5 mm (1.9 in)	25 of 100 (Routine)
Pascagoula 3 NE	United States	Record high maximum temperature	31.7 C (89.1 F)	25 of 100 (Routine)
Baddeck	Canada	Record high maximum temperature	21.7 C (71.1 F)	24 of 100 (Routine)
Kljuchi	Russia	Record low maximum temperature	1.3 C (34.3 F)	24 of 100 (Routine)
Hay Springs	United States	Record daily precipitation	30.5 mm (1.2 in)	24 of 100 (Routine)
Allakaket	United States	Record high maximum temperature	20.6 C (69.1 F)	24 of 100 (Routine)
Cacequi	Brazil	Record daily precipitation	106.2 mm (4.2 in)	23 of 100 (Routine)
Itaporanga Dajuda	Brazil	Record daily precipitation	68.2 mm (2.7 in)	23 of 100 (Routine)
Temascales	Mexico	Record daily precipitation	25.4 mm (1.0 in)	23 of 100 (Routine)
Tecamachalco	Mexico	Record low maximum temperature	21.7 C (71.1 F)	23 of 100 (Routine)
Tenango de Doria	Mexico	Record daily precipitation	54.9 mm (2.2 in)	22 of 100 (Routine)
San Ildelfonso Villa Alta	Mexico	Record high maximum temperature	37.8 C (100.0 F)	22 of 100 (Routine)
Kern River Ph 1	United States	Record high minimum temperature	24.4 C (75.9 F)	22 of 100 (Routine)
University Exp STN	United States	Record high minimum temperature	8.3 C (46.9 F)	22 of 100 (Routine)
Don Muang	Thailand	Record low minimum temperature	21.5 C (70.7 F)	21 of 100 (Routine)

Counts by Type and Timescale

418 records

Records set or tied on 12 May 1975 by type: Highest daily maximum 53, Lowest daily maximum 27, Highest daily minimum 71, Lowest daily minimum 30, Heaviest daily rainfall 230, Heaviest daily snowfall 2, Deepest snow cover 5.

Records on 12 May 1975 by type
Record type	Records
Highest daily maximum	53
Lowest daily maximum	27
Highest daily minimum	71
Lowest daily minimum	30
Heaviest daily rainfall	230
Heaviest daily snowfall	2
Deepest snow cover	5

Records on 12 May 1975 by timescale: all-time 0, monthly 11, daily 407.

How Much Records Were Beaten By

358 broken records

Margins by which the 358 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 432.0. Ties are not counted.

Top 20 by Significance

12 May 1975

Top 20 records on 12 May 1975 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 May 1975	Novosibirsk, RU	daily rain	70.1 mm (2.8 in)	55.6 mm (2.2 in)	32 years	56 of 100 (Notable)
12 May 1975	Zacualtipan (Smn), MX	daily rain	61.5 mm (2.4 in)	49.6 mm (2.0 in)	30 years	52 of 100 (Notable)
12 May 1975	Linkoeping-Malmslaett, SE	monthly rain	32.8 mm (1.3 in)	4.5 mm (0.18 in)	73 years	52 of 100 (Notable)
12 May 1975	Vasterhaninge, SE	daily rain	25.7 mm (1.0 in)	20.6 mm (0.8 in)	28 years	51 of 100 (Notable)
12 May 1975	Gustavsberg, SE	daily rain	27.5 mm (1.1 in)	23.5 mm (0.9 in)	28 years	51 of 100 (Notable)
12 May 1975	Akron Washington Co AP, US	daily rain	54.9 mm (2.2 in)	42.7 mm (1.7 in)	17 years	48 of 100 (Notable)
12 May 1975	Grundsjon, SE	daily rain	29.0 mm (1.1 in)	19.7 mm (0.8 in)	26 years	47 of 100 (Notable)
12 May 1975	Adelaide (Glen Osmond), AU	daily rain	30.6 mm (1.2 in)	9.5 mm (0.37 in)	87 years	46 of 100 (Notable)
12 May 1975	Granshult, SE	daily rain	27.2 mm (1.1 in)	18.2 mm (0.7 in)	21 years	46 of 100 (Notable)
12 May 1975	Tanunda, AU	daily rain	45.0 mm (1.8 in)	23.9 mm (0.9 in)	14 years	45 of 100 (Notable)
12 May 1975	Angaston, AU	daily rain	40.0 mm (1.6 in)	22.2 mm (0.9 in)	14 years	44 of 100 (Notable)
12 May 1975	Magiscatzin (Smn), MX	monthly rain	101.9 mm (4.0 in)	32.0 mm (1.3 in)	31 years	44 of 100 (Notable)
12 May 1975	Toraliden, SE	daily rain	32.0 mm (1.3 in)	24.5 mm (1.0 in)	4 years	44 of 100 (Notable)
12 May 1975	Tornby, SE	daily rain	25.0 mm (1.0 in)	20.4 mm (0.8 in)	5 years	44 of 100 (Notable)
12 May 1975	Mexia, US	daily rain	134.1 mm (5.3 in)	55.4 mm (2.2 in)	17 years	42 of 100 (Notable)
12 May 1975	Goodland, US	daily rain	30.7 mm (1.2 in)	20.5 mm (0.8 in)	48 years	42 of 100 (Notable)
12 May 1975	Yungaburra, AU	daily rain	38.0 mm (1.5 in)	16.9 mm (0.7 in)	36 years	41 of 100 (Notable)
12 May 1975	Amealco, MX	daily low max	13.9 C (57.0 F)	9.4 C (16.9 F)	30 years	41 of 100 (Notable)
12 May 1975	Minatitlan, MX	daily rain	77.0 mm (3.0 in)	58.2 mm (2.3 in)	16 years	41 of 100 (Notable)
12 May 1975	Lommaryd, SE	daily rain	27.5 mm (1.1 in)	19.8 mm (0.8 in)	5 years	41 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

1814 to 1975

Records set or tied on this calendar date in each year from 1814 to 1975. 1975 had 418 records.

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

Records on 05-12 in each year
Year	Records
1814	2
1823	1
1825	1
1827	1
1834	1
1837	1
1838	1
1845	1
1847	1
1848	1
1849	2
1851	1
1855	2
1860	2
1862	2
1863	1
1867	1
1868	1
1872	2
1874	1
1877	1
1878	1
1879	1
1881	4
1882	5
1884	3
1885	2
1886	3
1887	1
1888	1
1889	1
1890	1
1891	4
1894	1
1895	1
1896	1
1897	7
1898	3
1900	3
1901	6
1902	5
1903	7
1904	11
1905	10
1906	20
1907	53
1908	12
1909	4
1910	9
1911	37
1912	46
1913	6
1914	36
1915	50
1916	42
1917	54
1918	113
1919	42
1920	19
1921	64
1922	43
1923	109
1924	245
1925	275
1926	121
1927	167
1928	192
1929	172
1930	500
1931	350
1932	199
1933	476
1934	293
1935	404
1936	329
1937	214
1938	394
1939	233
1940	440
1941	568
1942	418
1943	803
1944	368
1945	389
1946	653
1947	286
1948	390
1949	414
1950	283
1951	427
1952	711
1953	891
1954	305
1955	265
1956	1,568
1957	454
1958	714
1959	740
1960	1,583
1961	381
1962	713
1963	777
1964	401
1965	196
1966	909
1967	810
1968	890
1969	506
1970	698
1971	668
1972	641
1973	393
1974	702
1975	418
1976	541
1977	855
1978	802
1979	763
1980	684
1981	855
1982	763
1983	1,281
1984	887
1985	1,199
1986	473
1987	1,295
1988	619
1989	856
1990	617
1991	1,177
1992	1,022
1993	1,208
1994	738
1995	1,190
1996	1,420
1997	921
1998	1,576
1999	881
2000	1,486
2001	1,015
2002	1,027
2003	861
2004	1,054
2005	1,369
2006	797
2007	630
2008	858
2009	687
2010	1,250
2011	1,119
2012	660
2013	689
2014	949
2015	958
2016	421
2017	529
2018	819
2019	784
2020	1,338
2021	712
2022	1,930
2023	429
2024	447
2025	940
2026	1,110

Download the Data

Data for records on 1975-05-12: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 100	355
100 to 200	1
200 to 300	0
300 to 400	1
400 to 500	1