Weather Records on 12 May 1970

698 weather records were set or tied worldwide on 12 May 1970. Highest significance: Brillion, US.

Key Facts for 12 May 1970

On 12 May 1970, 698 weather records were set or tied at long-record stations worldwide.
240 were record highs and 189 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 11 monthly and 687 daily.
Brillion set a daily record precipitation of 47.5 mm (1.9 in) on 12 May 1970.
Across 164 earlier years (1814 to 2026) the same calendar date averaged 451 records.

Record Map

698 stations

698 station records on 12 May 1970 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 May 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
Brillion	United States	Record daily precipitation	47.5 mm (1.9 in)	54 of 100 (Notable)
Uman	Ukraine	Record daily precipitation	66.8 mm (2.6 in)	50 of 100 (Notable)
Schluchtern-Herolz	Germany	Record daily precipitation	36.1 mm (1.4 in)	49 of 100 (Notable)
Lamoni	United States	Record daily precipitation	46.5 mm (1.8 in)	47 of 100 (Notable)
Hkorol	Russia	Record daily precipitation	44.0 mm (1.7 in)	46 of 100 (Notable)
Amsterdam (Pol)	South Africa	Record daily precipitation	47.0 mm (1.9 in)	46 of 100 (Notable)
Grant City	United States	Record daily precipitation	68.1 mm (2.7 in)	46 of 100 (Notable)
Makakatana	South Africa	Record daily precipitation	96.5 mm (3.8 in)	45 of 100 (Notable)
Bad Bruckenau (A)	Germany	Record daily precipitation	33.8 mm (1.3 in)	43 of 100 (Notable)
Mt Ayr	United States	Record daily precipitation	57.7 mm (2.3 in)	43 of 100 (Notable)
Sovetskaja Gavan	Russia	Record daily precipitation	47.0 mm (1.9 in)	42 of 100 (Notable)
Hartington	United States	Record daily precipitation	41.9 mm (1.6 in)	42 of 100 (Notable)
Hausstein	Germany	Record daily precipitation	46.2 mm (1.8 in)	41 of 100 (Notable)
Nongoma	South Africa	Record daily precipitation	37.8 mm (1.5 in)	41 of 100 (Notable)
Portola	United States	Record daily snowfall	10.2 cm (4.0 in)	41 of 100 (Notable)
Brocken	Germany	Record snow depth	165.0 cm (65.0 in)	40 of 100 (Notable)
Forsyth 2 E	United States	Record daily snowfall	7.6 cm (3.0 in)	40 of 100 (Notable)
Sawantwadi	India	Record daily precipitation	69.0 mm (2.7 in)	39 of 100 (Notable)
Pogranichnoe	Russia	Record daily precipitation	34.9 mm (1.4 in)	39 of 100 (Notable)
Utuado	Puerto Rico [United States]	Record low maximum temperature	26.1 C (79.0 F)	38 of 100 (Notable)
Lucerne	United States	Record daily precipitation	48.8 mm (1.9 in)	38 of 100 (Notable)
Stanley Wwtp	United States	Record daily precipitation	52.8 mm (2.1 in)	38 of 100 (Notable)
Saundatti	India	Record daily precipitation	44.4 mm (1.7 in)	37 of 100 (Notable)
Poronajsk	Russia	Record daily precipitation	34.8 mm (1.4 in)	37 of 100 (Notable)
Harlan	United States	Record daily precipitation	34.3 mm (1.4 in)	37 of 100 (Notable)
Gardiner	United States	Record high minimum temperature	14.4 C (57.9 F)	37 of 100 (Notable)
Trier	Germany	Record daily precipitation	25.9 mm (1.0 in)	36 of 100 (Notable)
Van Wert 1 S	United States	Record daily precipitation	27.2 mm (1.1 in)	36 of 100 (Notable)
Yellow Grass	Canada	Record daily snowfall	6.1 cm (2.4 in)	35 of 100 (Notable)
Manati 2 E	Puerto Rico [United States]	Record daily precipitation	55.4 mm (2.2 in)	35 of 100 (Notable)
Hill City 1 W	United States	Record daily snowfall	15.2 cm (6.0 in)	35 of 100 (Notable)
Roy	United States	Record high minimum temperature	18.9 C (66.0 F)	35 of 100 (Notable)
Cluj Napoca	Romania	Record daily precipitation	28.7 mm (1.1 in)	33 of 100 (Routine)
Kirksville	United States	Record high minimum temperature	19.4 C (66.9 F)	33 of 100 (Routine)
Waukesha Wwtp	United States	Record daily precipitation	56.1 mm (2.2 in)	33 of 100 (Routine)
Registro	Brazil	Record daily precipitation	55.3 mm (2.2 in)	32 of 100 (Routine)
Fairview	South Africa	Record daily precipitation	36.0 mm (1.4 in)	32 of 100 (Routine)
Yreka	United States	Record low minimum temperature	-3.3 C (26.1 F)	32 of 100 (Routine)
Morrison	United States	Record high minimum temperature	18.9 C (66.0 F)	32 of 100 (Routine)
Iowa City	United States	Record high minimum temperature	18.9 C (66.0 F)	32 of 100 (Routine)
Houston	United States	Record high minimum temperature	18.9 C (66.0 F)	32 of 100 (Routine)
Table Rock 4N	United States	Record daily precipitation	40.1 mm (1.6 in)	32 of 100 (Routine)
Healdton 3 E	United States	Record high minimum temperature	21.7 C (71.1 F)	32 of 100 (Routine)
West Bend	United States	Record daily precipitation	33.3 mm (1.3 in)	32 of 100 (Routine)
Khanpur	India	Record daily precipitation	25.4 mm (1.0 in)	31 of 100 (Routine)
Dixon Wwtp	United States	Record high minimum temperature	18.9 C (66.0 F)	31 of 100 (Routine)
Clinton #1	United States	Record high minimum temperature	18.3 C (64.9 F)	31 of 100 (Routine)
Oskaloosa	United States	Record high minimum temperature	18.9 C (66.0 F)	31 of 100 (Routine)
Minnedosa	Canada	Record low maximum temperature	3.9 C (39.0 F)	30 of 100 (Routine)
Kangela, Mtubatuba	South Africa	Record daily precipitation	34.5 mm (1.4 in)	30 of 100 (Routine)
Fayette	United States	Record high minimum temperature	17.8 C (64.0 F)	30 of 100 (Routine)
Oakland	United States	Record daily precipitation	29.0 mm (1.1 in)	30 of 100 (Routine)
Klamath Falls 2 SSW	United States	Record low minimum temperature	-6.1 C (21.0 F)	30 of 100 (Routine)
Novoalekseevka	Kazakhstan	Record daily precipitation	30.5 mm (1.2 in)	29 of 100 (Routine)
Ternej	Russia	Record daily precipitation	45.7 mm (1.8 in)	29 of 100 (Routine)
Hollister 1 SW	United States	Record low minimum temperature	1.7 C (35.1 F)	29 of 100 (Routine)
Jersey City	United States	Record high minimum temperature	20.0 C (68.0 F)	29 of 100 (Routine)
Parsons 3 SE	United States	Record high minimum temperature	15.0 C (59.0 F)	29 of 100 (Routine)
Davenport L&D 15	United States	Record high minimum temperature	18.3 C (64.9 F)	29 of 100 (Routine)
Swaziland Ranch-Homest	Swaziland	Record daily precipitation	67.5 mm (2.7 in)	29 of 100 (Routine)

Counts by Type and Timescale

698 records

Records set or tied on 12 May 1970 by type: Highest daily maximum 52, Lowest daily maximum 121, Highest daily minimum 188, Lowest daily minimum 68, Heaviest daily rainfall 222, Heaviest daily snowfall 42, Deepest snow cover 5.

Records on 12 May 1970 by type
Record type	Records
Highest daily maximum	52
Lowest daily maximum	121
Highest daily minimum	188
Lowest daily minimum	68
Heaviest daily rainfall	222
Heaviest daily snowfall	42
Deepest snow cover	5

Records on 12 May 1970 by timescale: all-time 0, monthly 11, daily 687.

How Much Records Were Beaten By

530 broken records

Margins by which the 530 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 1000.0. Ties are not counted.

Top 20 by Significance

12 May 1970

Top 20 records on 12 May 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 May 1970	Brillion, US	daily rain	47.5 mm (1.9 in)	34.8 mm (1.4 in)	35 years	54 of 100 (Notable)
12 May 1970	Uman, UA	daily rain	66.8 mm (2.6 in)	36.2 mm (1.4 in)	8 years	50 of 100 (Notable)
12 May 1970	Schluchtern-Herolz, DE	daily rain	36.1 mm (1.4 in)	22.8 mm (0.9 in)	17 years	49 of 100 (Notable)
12 May 1970	Lamoni, US	daily rain	46.5 mm (1.8 in)	30.2 mm (1.2 in)	53 years	47 of 100 (Notable)
12 May 1970	Hkorol, RU	daily rain	44.0 mm (1.7 in)	25.4 mm (1.0 in)	20 years	46 of 100 (Notable)
12 May 1970	Amsterdam (Pol), ZA	daily rain	47.0 mm (1.9 in)	35.0 mm (1.4 in)	7 years	46 of 100 (Notable)
12 May 1970	Grant City, US	daily rain	68.1 mm (2.7 in)	33.8 mm (1.3 in)	49 years	46 of 100 (Notable)
12 May 1970	Makakatana, ZA	daily rain	96.5 mm (3.8 in)	88.5 mm (3.5 in)	4 years	45 of 100 (Notable)
12 May 1970	Bad Bruckenau (A), DE	daily rain	33.8 mm (1.3 in)	21.5 mm (0.8 in)	17 years	43 of 100 (Notable)
12 May 1970	Mt Ayr, US	daily rain	57.7 mm (2.3 in)	18.3 mm (0.7 in)	73 years	43 of 100 (Notable)
12 May 1970	Sovetskaja Gavan, RU	daily rain	47.0 mm (1.9 in)	25.3 mm (1.0 in)	21 years	42 of 100 (Notable)
12 May 1970	Hartington, US	daily rain	41.9 mm (1.6 in)	18.5 mm (0.7 in)	67 years	42 of 100 (Notable)
12 May 1970	Hausstein, DE	daily rain	46.2 mm (1.8 in)	22.0 mm (0.9 in)	33 years	41 of 100 (Notable)
12 May 1970	Nongoma, ZA	daily rain	37.8 mm (1.5 in)	21.8 mm (0.9 in)	48 years	41 of 100 (Notable)
12 May 1970	Portola, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	53 years	41 of 100 (Notable)
12 May 1970	Brocken, DE	daily snow depth	165.0 cm (65.0 in)	100.0 cm (39.4 in)	3 years	40 of 100 (Notable)
12 May 1970	Forsyth 2 E, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	64 years	40 of 100 (Notable)
12 May 1970	Sawantwadi, IN	daily rain	69.0 mm (2.7 in)	48.9 mm (1.9 in)	36 years	39 of 100 (Notable)
12 May 1970	Pogranichnoe, RU	daily rain	34.9 mm (1.4 in)	18.2 mm (0.7 in)	20 years	39 of 100 (Notable)
12 May 1970	Utuado, PR	daily low max	26.1 C (79.0 F)	4.5 C (8.1 F)	21 years	38 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 1970

Records set or tied on this calendar date in each year from 1814 to 1970. 1970 had 698 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 1970-05-12: 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 200	529
200 to 400	0
400 to 600	0
600 to 800	0
800 to 1000	1