Weather Records on 12 May 1949

414 weather records were set or tied worldwide on 12 May 1949. Highest significance: Asifabad(Rev), IN.

Key Facts for 12 May 1949

On 12 May 1949, 414 weather records were set or tied at long-record stations worldwide.
214 were record highs and 65 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 6 monthly and 408 daily.
Asifabad(Rev) set a monthly record daily precipitation of 69.9 mm (2.8 in) on 12 May 1949.
Across 164 earlier years (1814 to 2026) the same calendar date averaged 453 records.

Record Map

414 stations

414 station records on 12 May 1949 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 May 1949: highest significance records shown on the map
Station	Country	Type	Value	Significance
Asifabad(Rev)	India	Record daily precipitation	69.9 mm (2.8 in)	62 of 100 (Major)
Goalpara	India	Record daily precipitation	157.5 mm (6.2 in)	56 of 100 (Notable)
Serampore	India	Record daily precipitation	184.7 mm (7.3 in)	54 of 100 (Notable)
Chacon	United States	Record daily precipitation	38.1 mm (1.5 in)	53 of 100 (Notable)
Loukahi	India	Record daily precipitation	76.2 mm (3.0 in)	46 of 100 (Notable)
Monghyr	India	Record daily precipitation	58.4 mm (2.3 in)	42 of 100 (Notable)
Kharagpur	India	Record daily precipitation	63.5 mm (2.5 in)	38 of 100 (Notable)
Ghazipur	India	Record daily precipitation	30.2 mm (1.2 in)	35 of 100 (Notable)
Guayama 1SW	Puerto Rico [United States]	Record daily precipitation	49.5 mm (1.9 in)	35 of 100 (Notable)
Kaikalur	India	Record daily precipitation	58.4 mm (2.3 in)	34 of 100 (Routine)
Tiruvur(Tiruvvru)	India	Record daily precipitation	66.5 mm (2.6 in)	33 of 100 (Routine)
Navalgund	India	Record daily precipitation	43.9 mm (1.7 in)	33 of 100 (Routine)
Portland Rfc City	United States	Record high minimum temperature	17.8 C (64.0 F)	33 of 100 (Routine)
Vancouver 4 NNE	United States	Record high minimum temperature	15.6 C (60.1 F)	31 of 100 (Routine)
Tirumangalam	India	Record daily precipitation	26.4 mm (1.0 in)	29 of 100 (Routine)
Moncure 3 SE	United States	Record low maximum temperature	13.9 C (57.0 F)	29 of 100 (Routine)
Arlington	United States	Record high maximum temperature	35.6 C (96.1 F)	29 of 100 (Routine)
Hanamkonda	India	Record daily precipitation	61.0 mm (2.4 in)	28 of 100 (Routine)
Albany 1 N	United States	Record high minimum temperature	14.4 C (57.9 F)	28 of 100 (Routine)
Mehgawan	India	Record daily precipitation	38.1 mm (1.5 in)	27 of 100 (Routine)
Cumbres	United States	Record daily snowfall	15.5 cm (6.1 in)	27 of 100 (Routine)
Jacksonville Wb City	United States	Record low maximum temperature	21.1 C (70.0 F)	27 of 100 (Routine)
Marble Bar Comparison	Australia	Record low minimum temperature	7.8 C (46.0 F)	26 of 100 (Routine)
Ilkal	India	Record daily precipitation	34.3 mm (1.4 in)	26 of 100 (Routine)
Potkabari	India	Record daily precipitation	68.1 mm (2.7 in)	26 of 100 (Routine)
Drevja	Norway	Record daily precipitation	32.0 mm (1.3 in)	26 of 100 (Routine)
Columbia Falls 5 SW	United States	Record high maximum temperature	31.1 C (88.0 F)	26 of 100 (Routine)
Salem AP (McNary Field)	United States	Record high minimum temperature	14.4 C (57.9 F)	26 of 100 (Routine)
Russell	Canada	Record high maximum temperature	28.9 C (84.0 F)	25 of 100 (Routine)
Forest Grove	United States	Record high minimum temperature	13.9 C (57.0 F)	25 of 100 (Routine)
Monsenhor Tabosa	Brazil	Record daily precipitation	25.0 mm (1.0 in)	24 of 100 (Routine)
Dublin Phoenix Park	Ireland	Record high maximum temperature	22.8 C (73.0 F)	24 of 100 (Routine)
Liepaja	Latvia	Record low minimum temperature	-0.7 C (30.7 F)	24 of 100 (Routine)
Idaho Springs	United States	Record daily precipitation	37.8 mm (1.5 in)	24 of 100 (Routine)
Graz	Austria	Record low maximum temperature	10.5 C (50.9 F)	23 of 100 (Routine)
Chengannur	India	Record daily precipitation	90.2 mm (3.6 in)	23 of 100 (Routine)
Pattanamphitta	India	Record daily precipitation	71.1 mm (2.8 in)	23 of 100 (Routine)
Riva	Italy	Record low minimum temperature	7.0 C (44.6 F)	23 of 100 (Routine)
Ponce 4 E	Puerto Rico [United States]	Record daily precipitation	33.8 mm (1.3 in)	23 of 100 (Routine)
Hyannis	United States	Record low maximum temperature	7.8 C (46.0 F)	23 of 100 (Routine)
Society Hill 6 S	United States	Record low maximum temperature	17.2 C (63.0 F)	23 of 100 (Routine)
Dibrugarh Obsy	India	Record daily precipitation	56.6 mm (2.2 in)	22 of 100 (Routine)
Sheffield	United Kingdom	Record high maximum temperature	22.2 C (72.0 F)	22 of 100 (Routine)
Beaufort Wwtp	United States	Record low maximum temperature	22.2 C (72.0 F)	22 of 100 (Routine)
Pathalipam	India	Record daily precipitation	84.3 mm (3.3 in)	21 of 100 (Routine)
Corvallis State UNIV	United States	Record high minimum temperature	17.2 C (63.0 F)	21 of 100 (Routine)
Moro	United States	Record high minimum temperature	15.0 C (59.0 F)	21 of 100 (Routine)
Makrai	India	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Regensburg	Germany	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)
Yuma	United States	Record daily precipitation	22.6 mm (0.9 in)	20 of 100 (Routine)
Bethesdaweg (Sar)	South Africa	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Los Alamos	United States	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
San Luis 1 S	United States	Record daily precipitation	9.4 mm (0.37 in)	20 of 100 (Routine)
Stuttgart	Germany	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
Weltevrede	South Africa	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Graz	Austria	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Nellore	India	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Amraoti	India	Record daily precipitation	4.6 mm (0.18 in)	20 of 100 (Routine)
Cerro	United States	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Santa Fe	United States	Record daily precipitation	12.4 mm (0.5 in)	20 of 100 (Routine)

Counts by Type and Timescale

414 records

Records set or tied on 12 May 1949 by type: Highest daily maximum 135, Lowest daily maximum 44, Highest daily minimum 79, Lowest daily minimum 21, Heaviest daily rainfall 132, Heaviest daily snowfall 1, Deepest snow cover 2.

Records on 12 May 1949 by type
Record type	Records
Highest daily maximum	135
Lowest daily maximum	44
Highest daily minimum	79
Lowest daily minimum	21
Heaviest daily rainfall	132
Heaviest daily snowfall	1
Deepest snow cover	2

Records on 12 May 1949 by timescale: all-time 0, monthly 6, daily 408.

How Much Records Were Beaten By

323 broken records

Margins by which the 323 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 131.4. Ties are not counted.

Top 20 by Significance

12 May 1949

Top 20 records on 12 May 1949 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 May 1949	Asifabad(Rev), IN	monthly rain	69.9 mm (2.8 in)	33.1 mm (1.3 in)	26 years	62 of 100 (Major)
12 May 1949	Goalpara, IN	daily rain	157.5 mm (6.2 in)	112.3 mm (4.4 in)	43 years	56 of 100 (Notable)
12 May 1949	Serampore, IN	daily rain	184.7 mm (7.3 in)	131.4 mm (5.2 in)	36 years	54 of 100 (Notable)
12 May 1949	Chacon, US	daily rain	38.1 mm (1.5 in)	33.0 mm (1.3 in)	30 years	53 of 100 (Notable)
12 May 1949	Loukahi, IN	daily rain	76.2 mm (3.0 in)	63.5 mm (2.5 in)	8 years	46 of 100 (Notable)
12 May 1949	Monghyr, IN	daily rain	58.4 mm (2.3 in)	35.5 mm (1.4 in)	44 years	42 of 100 (Notable)
12 May 1949	Kharagpur, IN	daily rain	63.5 mm (2.5 in)	32.3 mm (1.3 in)	36 years	38 of 100 (Notable)
12 May 1949	Ghazipur, IN	daily rain	30.2 mm (1.2 in)	25.1 mm (1.0 in)	23 years	35 of 100 (Notable)
12 May 1949	Guayama 1SW, PR	daily rain	49.5 mm (1.9 in)	35.0 mm (1.4 in)	38 years	35 of 100 (Notable)
12 May 1949	Kaikalur, IN	daily rain	58.4 mm (2.3 in)	32.0 mm (1.3 in)	36 years	34 of 100 (Routine)
12 May 1949	Tiruvur(Tiruvvru), IN	daily rain	66.5 mm (2.6 in)	26.6 mm (1.0 in)	48 years	33 of 100 (Routine)
12 May 1949	Navalgund, IN	daily rain	43.9 mm (1.7 in)	27.1 mm (1.1 in)	23 years	33 of 100 (Routine)
12 May 1949	Portland Rfc City, US	daily high min	17.8 C (64.0 F)	2.8 C (5.0 F)	53 years	33 of 100 (Routine)
12 May 1949	Vancouver 4 NNE, US	daily high min	15.6 C (60.1 F)	3.4 C (6.1 F)	48 years	31 of 100 (Routine)
12 May 1949	Tirumangalam, IN	daily rain	26.4 mm (1.0 in)	15.7 mm (0.6 in)	46 years	29 of 100 (Routine)
12 May 1949	Moncure 3 SE, US	daily low max	13.9 C (57.0 F)	5.5 C (9.9 F)	42 years	29 of 100 (Routine)
12 May 1949	Arlington, US	daily high max	35.6 C (96.1 F)	4.5 C (8.1 F)	51 years	29 of 100 (Routine)
12 May 1949	Hanamkonda, IN	daily rain	61.0 mm (2.4 in)	20.1 mm (0.8 in)	31 years	28 of 100 (Routine)
12 May 1949	Albany 1 N, US	daily high min	14.4 C (57.9 F)	2.2 C (4.0 F)	51 years	28 of 100 (Routine)
12 May 1949	Mehgawan, IN	daily rain	38.1 mm (1.5 in)	22.4 mm (0.9 in)	30 years	27 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 1949

Records set or tied on this calendar date in each year from 1814 to 1949. 1949 had 414 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 1949-05-12: 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 20	299
20 to 40	18
40 to 60	2
60 to 80	2
80 to 100	0
100 to 120	1
120 to 140	1