Weather Records on 12 May 1934

293 weather records were set or tied worldwide on 12 May 1934. Highest significance: Cananeia G4-001, BR.

Key Facts for 12 May 1934

On 12 May 1934, 293 weather records were set or tied at long-record stations worldwide.
192 were record highs and 56 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 5 monthly and 288 daily.
Cananeia G4-001 set a daily record precipitation of 70.0 mm (2.8 in) on 12 May 1934.
Across 164 earlier years (1814 to 2026) the same calendar date averaged 454 records.

Record Map

293 stations

293 station records on 12 May 1934 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 May 1934: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cananeia G4-001	Brazil	Record daily precipitation	70.0 mm (2.8 in)	36 of 100 (Notable)
Dunderlandsdalen	Norway	Record daily precipitation	27.0 mm (1.1 in)	36 of 100 (Notable)
Krakmo	Norway	Record daily precipitation	33.3 mm (1.3 in)	35 of 100 (Notable)
Port Arthur	Canada	Record daily snowfall	7.4 cm (2.9 in)	28 of 100 (Routine)
Palayankottai	India	Record daily precipitation	56.9 mm (2.2 in)	28 of 100 (Routine)
Redlands	United States	Record high minimum temperature	15.6 C (60.1 F)	26 of 100 (Routine)
Lake Mills Wwtp	United States	Record low minimum temperature	-6.7 C (19.9 F)	26 of 100 (Routine)
N Bend SW Oregon Rgnl AP	United States	Record high maximum temperature	27.2 C (81.0 F)	26 of 100 (Routine)
Hvar	Croatia	Record high maximum temperature	26.6 C (79.9 F)	24 of 100 (Routine)
Montrose #2	United States	Record high minimum temperature	13.3 C (55.9 F)	24 of 100 (Routine)
Globe Rs	United States	Record high minimum temperature	20.6 C (69.1 F)	22 of 100 (Routine)
Oracle	United States	Record high minimum temperature	21.7 C (71.1 F)	22 of 100 (Routine)
Delta	United States	Record high minimum temperature	11.1 C (52.0 F)	22 of 100 (Routine)
Bedford 2 SE	United States	Record high minimum temperature	6.7 C (44.1 F)	22 of 100 (Routine)
Kottarakara	India	Record daily precipitation	59.7 mm (2.4 in)	21 of 100 (Routine)
Mesa	United States	Record high minimum temperature	20.6 C (69.1 F)	21 of 100 (Routine)
Glenwood Spgs #2	United States	Record high minimum temperature	11.1 C (52.0 F)	21 of 100 (Routine)
Rosewood Walloon Rd	Australia	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Healy	United States	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Broken Hill (Nuntherungie)	Australia	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Albert Lea 3SE	United States	Record daily precipitation	13.7 mm (0.5 in)	20 of 100 (Routine)
Kuturi	India	Record daily precipitation	59.2 mm (2.3 in)	20 of 100 (Routine)
Kampli	India	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Greeley	United States	Record high minimum temperature	12.2 C (54.0 F)	20 of 100 (Routine)
Hutchinson River	United States	Record high minimum temperature	20.0 C (68.0 F)	20 of 100 (Routine)
Petoskey	United States	Record low minimum temperature	-4.4 C (24.1 F)	20 of 100 (Routine)
Levan	United States	Record high minimum temperature	10.6 C (51.1 F)	20 of 100 (Routine)
Moab	United States	Record high maximum temperature	36.1 C (97.0 F)	20 of 100 (Routine)
Traverse Cy Cherry Capital AP	United States	Record low minimum temperature	-2.8 C (27.0 F)	20 of 100 (Routine)
Kapskarmo	Norway	Record daily precipitation	12.1 mm (0.5 in)	19 of 100 (Routine)
Phillipsburg 1 SSE	United States	Record high maximum temperature	36.7 C (98.1 F)	19 of 100 (Routine)
Napoleon	United States	Record low minimum temperature	-1.1 C (30.0 F)	19 of 100 (Routine)
Madison Wb City	United States	Record daily precipitation	18.8 mm (0.7 in)	19 of 100 (Routine)
Lowood Don St	Australia	Record daily precipitation	8.4 mm (0.33 in)	18 of 100 (Routine)
Tranebjerg	Denmark	Record high minimum temperature	10.0 C (50.0 F)	18 of 100 (Routine)
Attingal	India	Record daily precipitation	44.5 mm (1.8 in)	18 of 100 (Routine)
Ulan-Ude	Russia	Record high minimum temperature	6.3 C (43.3 F)	18 of 100 (Routine)
Karlshamn	Sweden	Record high minimum temperature	12.5 C (54.5 F)	18 of 100 (Routine)
Bjuraker	Sweden	Record high maximum temperature	23.0 C (73.4 F)	18 of 100 (Routine)
Clay Ctr	United States	Record high minimum temperature	20.0 C (68.0 F)	18 of 100 (Routine)
Mackinaw City 2	United States	Record low minimum temperature	-3.9 C (25.0 F)	18 of 100 (Routine)
Franklin	United States	Record high minimum temperature	17.8 C (64.0 F)	18 of 100 (Routine)
Chama	United States	Record high minimum temperature	4.4 C (39.9 F)	18 of 100 (Routine)
St George	United States	Record high maximum temperature	36.7 C (98.1 F)	18 of 100 (Routine)
Hillsboro	United States	Record daily precipitation	34.3 mm (1.4 in)	18 of 100 (Routine)
Benson	United States	Record high minimum temperature	15.0 C (59.0 F)	17 of 100 (Routine)
Whiteriver 1 SW	United States	Record high maximum temperature	34.4 C (93.9 F)	17 of 100 (Routine)
Los Gatos	United States	Record high maximum temperature	37.2 C (99.0 F)	17 of 100 (Routine)
Merced	United States	Record high maximum temperature	38.3 C (100.9 F)	17 of 100 (Routine)
Canon City	United States	Record high minimum temperature	15.6 C (60.1 F)	17 of 100 (Routine)
Lamar	United States	Record high maximum temperature	36.7 C (98.1 F)	17 of 100 (Routine)
Las Animas	United States	Record high minimum temperature	20.6 C (69.1 F)	17 of 100 (Routine)
Wray	United States	Record high minimum temperature	16.1 C (61.0 F)	17 of 100 (Routine)
Phillipsburg 1 SSE	United States	Record high minimum temperature	17.2 C (63.0 F)	17 of 100 (Routine)
Pratt 3NW	United States	Record high minimum temperature	17.2 C (63.0 F)	17 of 100 (Routine)
Adrian 2 NNE	United States	Record low minimum temperature	-1.7 C (28.9 F)	17 of 100 (Routine)
Grayling	United States	Record low minimum temperature	-7.2 C (19.0 F)	17 of 100 (Routine)
Harrisville	United States	Record low minimum temperature	-1.7 C (28.9 F)	17 of 100 (Routine)
Owosso Wwtp	United States	Record low minimum temperature	-3.9 C (25.0 F)	17 of 100 (Routine)
Genoa 2 W	United States	Record high minimum temperature	17.8 C (64.0 F)	17 of 100 (Routine)

Counts by Type and Timescale

293 records

Records set or tied on 12 May 1934 by type: Highest daily maximum 84, Lowest daily maximum 4, Highest daily minimum 108, Lowest daily minimum 52, Heaviest daily rainfall 44, Heaviest daily snowfall 1.

Records on 12 May 1934 by type
Record type	Records
Highest daily maximum	84
Lowest daily maximum	4
Highest daily minimum	108
Lowest daily minimum	52
Heaviest daily rainfall	44
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 12 May 1934 by timescale: all-time 0, monthly 5, daily 288.

How Much Records Were Beaten By

232 broken records

Margins by which the 232 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 54.0. Ties are not counted.

Top 20 by Significance

12 May 1934

Top 20 records on 12 May 1934 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 May 1934	Cananeia G4-001, BR	daily rain	70.0 mm (2.8 in)	39.6 mm (1.6 in)	3 years	36 of 100 (Notable)
12 May 1934	Dunderlandsdalen, NO	daily rain	27.0 mm (1.1 in)	16.5 mm (0.6 in)	4 years	36 of 100 (Notable)
12 May 1934	Krakmo, NO	daily rain	33.3 mm (1.3 in)	20.7 mm (0.8 in)	4 years	35 of 100 (Notable)
12 May 1934	Port Arthur, CA	daily snowfall	7.4 cm (2.9 in)	5.4 cm (2.1 in)	45 years	28 of 100 (Routine)
12 May 1934	Palayankottai, IN	daily rain	56.9 mm (2.2 in)	36.3 mm (1.4 in)	0 years	28 of 100 (Routine)
12 May 1934	Redlands, US	daily high min	15.6 C (60.1 F)	3.4 C (6.1 F)	31 years	26 of 100 (Routine)
12 May 1934	Lake Mills Wwtp, US	monthly low min	-6.7 C (19.9 F)	2.3 C (4.1 F)	27 years	26 of 100 (Routine)
12 May 1934	N Bend SW Oregon Rgnl AP, US	daily high max	27.2 C (81.0 F)	4.4 C (7.9 F)	29 years	26 of 100 (Routine)
12 May 1934	Hvar, HR	daily high max	26.6 C (79.9 F)	1.4 C (2.5 F)	49 years	24 of 100 (Routine)
12 May 1934	Montrose #2, US	daily high min	13.3 C (55.9 F)	6.1 C (11.0 F)	19 years	24 of 100 (Routine)
12 May 1934	Globe Rs, US	daily high min	20.6 C (69.1 F)	2.8 C (5.0 F)	39 years	22 of 100 (Routine)
12 May 1934	Oracle, US	daily high min	21.7 C (71.1 F)	2.8 C (5.0 F)	38 years	22 of 100 (Routine)
12 May 1934	Delta, US	daily high min	11.1 C (52.0 F)	2.8 C (5.0 F)	39 years	22 of 100 (Routine)
12 May 1934	Bedford 2 SE, US	daily high min	6.7 C (44.1 F)	3.4 C (6.1 F)	32 years	22 of 100 (Routine)
12 May 1934	Kottarakara, IN	daily rain	59.7 mm (2.4 in)	24.1 mm (0.9 in)	31 years	21 of 100 (Routine)
12 May 1934	Mesa, US	daily high min	20.6 C (69.1 F)	3.4 C (6.1 F)	31 years	21 of 100 (Routine)
12 May 1934	Glenwood Spgs #2, US	daily high min	11.1 C (52.0 F)	2.2 C (4.0 F)	39 years	21 of 100 (Routine)
12 May 1934	Rosewood Walloon Rd, AU	daily rain	19.1 mm (0.8 in)	12.0 mm (0.5 in)	37 years	20 of 100 (Routine)
12 May 1934	Healy, US	daily rain	22.9 mm (0.9 in)	12.5 mm (0.5 in)	32 years	20 of 100 (Routine)
12 May 1934	Broken Hill (Nuntherungie), AU	daily rain	14.0 mm (0.6 in)	7.1 mm (0.28 in)	28 years	20 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

1814 to 1934

Records set or tied on this calendar date in each year from 1814 to 1934. 1934 had 293 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 1934-05-12: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 10	218
10 to 20	7
20 to 30	4
30 to 40	2
40 to 50	0
50 to 60	1