Weather Records on 15 May 1956

466 weather records were set or tied worldwide on 15 May 1956. Highest significance: Houston, US.

Key Facts for 15 May 1956

On 15 May 1956, 466 weather records were set or tied at long-record stations worldwide.
154 were record highs and 52 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 10 monthly and 454 daily.
Houston set an all-time record daily precipitation of 127.0 mm (5.0 in) on 15 May 1956.
Across 162 earlier years (1820 to 2026) the same calendar date averaged 430 records.

Record Map

466 stations

466 station records on 15 May 1956 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 May 1956: highest significance records shown on the map
Station	Country	Type	Value	Significance
Houston	United States	Record daily precipitation	127.0 mm (5.0 in)	62 of 100 (Major)
Avoca (Post Office)	Australia	Record daily precipitation	72.4 mm (2.9 in)	61 of 100 (Major)
Bikrampur	India	Record daily precipitation	216.2 mm (8.5 in)	57 of 100 (Notable)
Moonambel	Australia	Record daily precipitation	77.5 mm (3.1 in)	54 of 100 (Notable)
Cape Don	Australia	Record daily precipitation	33.8 mm (1.3 in)	52 of 100 (Notable)
Moanalua 770	United States	Record daily precipitation	35.6 mm (1.4 in)	51 of 100 (Notable)
Mtn Grove 2 N	United States	Record daily precipitation	115.6 mm (4.6 in)	50 of 100 (Notable)
Willow Sprg Radio Kuku	United States	Record daily precipitation	133.4 mm (5.3 in)	48 of 100 (Notable)
Jowai	India	Record daily precipitation	218.4 mm (8.6 in)	47 of 100 (Notable)
Stewart	Canada	Record daily precipitation	33.8 mm (1.3 in)	46 of 100 (Notable)
Indpur	India	Record daily precipitation	81.3 mm (3.2 in)	46 of 100 (Notable)
Hailey 3 WSW	United States	Record daily precipitation	101.6 mm (4.0 in)	46 of 100 (Notable)
Kapalama 773	United States	Record daily precipitation	43.7 mm (1.7 in)	45 of 100 (Notable)
Oak Park	Australia	Record daily precipitation	29.0 mm (1.1 in)	44 of 100 (Notable)
Asansol Obsy Sr	India	Record daily precipitation	74.9 mm (2.9 in)	44 of 100 (Notable)
Northcliffe	Australia	Record daily precipitation	51.3 mm (2.0 in)	43 of 100 (Notable)
Birch Tree	United States	Record daily precipitation	87.4 mm (3.4 in)	42 of 100 (Notable)
Sitka Magnetic Obsy	United States	Record daily precipitation	45.7 mm (1.8 in)	40 of 100 (Notable)
Williamsville	United States	Record daily precipitation	64.3 mm (2.5 in)	39 of 100 (Notable)
Bangalup	Australia	Record daily precipitation	28.7 mm (1.1 in)	37 of 100 (Notable)
Irapuato	Mexico	Record daily precipitation	26.9 mm (1.1 in)	37 of 100 (Notable)
Mehgawan	India	Record daily precipitation	72.4 mm (2.9 in)	36 of 100 (Notable)
Dexter	United States	Record daily precipitation	68.6 mm (2.7 in)	36 of 100 (Notable)
Seligman	United States	Record daily precipitation	139.2 mm (5.5 in)	35 of 100 (Notable)
Maly Uzen'	Russia	Record daily precipitation	48.3 mm (1.9 in)	34 of 100 (Routine)
Salem	United States	Record daily precipitation	56.6 mm (2.2 in)	34 of 100 (Routine)
Sikeston	United States	Record daily precipitation	50.8 mm (2.0 in)	34 of 100 (Routine)
Laredo	United States	Record daily precipitation	75.2 mm (3.0 in)	34 of 100 (Routine)
Chula Vista	United States	Record high maximum temperature	27.2 C (81.0 F)	32 of 100 (Routine)
Serampore	India	Record daily precipitation	69.9 mm (2.8 in)	31 of 100 (Routine)
Ahuacatlan	Mexico	Record daily precipitation	47.8 mm (1.9 in)	29 of 100 (Routine)
Westcliffe	United States	Record low minimum temperature	-13.3 C (8.1 F)	29 of 100 (Routine)
Farmington	United States	Record daily precipitation	53.3 mm (2.1 in)	29 of 100 (Routine)
Koshkonong	United States	Record daily precipitation	68.1 mm (2.7 in)	29 of 100 (Routine)
Surada	India	Record daily precipitation	27.2 mm (1.1 in)	28 of 100 (Routine)
Santa Barbara	United States	Record high maximum temperature	34.4 C (93.9 F)	28 of 100 (Routine)
Princeton	United States	Record daily precipitation	28.2 mm (1.1 in)	28 of 100 (Routine)
Knowsley Post Office	Australia	Record daily precipitation	28.2 mm (1.1 in)	27 of 100 (Routine)
Barrage Angliers	Canada	Record daily snowfall	5.1 cm (2.0 in)	27 of 100 (Routine)
Dimapur	India	Record daily precipitation	48.3 mm (1.9 in)	27 of 100 (Routine)
Pachet(Kharai)	India	Record daily precipitation	41.9 mm (1.6 in)	27 of 100 (Routine)
Spavinaw	United States	Record daily precipitation	83.8 mm (3.3 in)	27 of 100 (Routine)
Haringhata	India	Record daily precipitation	73.7 mm (2.9 in)	26 of 100 (Routine)
Sfax El-Maou	Tunisia	Record low minimum temperature	10.0 C (50.0 F)	26 of 100 (Routine)
Holbrook	United States	Record low minimum temperature	-2.8 C (27.0 F)	26 of 100 (Routine)
Rogers	United States	Record daily precipitation	55.9 mm (2.2 in)	26 of 100 (Routine)
Samburg Wr	United States	Record daily precipitation	34.8 mm (1.4 in)	26 of 100 (Routine)
Ketchikan AP	United States	Record daily precipitation	63.8 mm (2.5 in)	26 of 100 (Routine)
Topchanchi	India	Record daily precipitation	63.5 mm (2.5 in)	25 of 100 (Routine)
Santa Ana Fire STN	United States	Record high maximum temperature	36.7 C (98.1 F)	25 of 100 (Routine)
Princess Anne	United States	Record high maximum temperature	33.3 C (91.9 F)	25 of 100 (Routine)
Morganton	United States	Record high maximum temperature	33.3 C (91.9 F)	25 of 100 (Routine)
Weldon	United States	Record high maximum temperature	35.6 C (96.1 F)	25 of 100 (Routine)
Pryor	United States	Record daily precipitation	72.9 mm (2.9 in)	25 of 100 (Routine)
Home Hill Fifteen A St	Australia	Record daily precipitation	53.8 mm (2.1 in)	24 of 100 (Routine)
El Cajon 2 E	United States	Record high maximum temperature	37.8 C (100.0 F)	24 of 100 (Routine)
Sierra Madre Henszey	United States	Record high maximum temperature	35.0 C (95.0 F)	24 of 100 (Routine)
Cheltenham 1 NW	United States	Record high maximum temperature	35.0 C (95.0 F)	24 of 100 (Routine)
Morehouse	United States	Record daily precipitation	49.8 mm (2.0 in)	24 of 100 (Routine)
Levy	United States	Record low minimum temperature	-6.1 C (21.0 F)	24 of 100 (Routine)

Counts by Type and Timescale

466 records

Records set or tied on 15 May 1956 by type: Highest daily maximum 92, Lowest daily maximum 20, Highest daily minimum 62, Lowest daily minimum 32, Heaviest daily rainfall 248, Heaviest daily snowfall 9, Deepest snow cover 3.

Records on 15 May 1956 by type
Record type	Records
Highest daily maximum	92
Lowest daily maximum	20
Highest daily minimum	62
Lowest daily minimum	32
Heaviest daily rainfall	248
Heaviest daily snowfall	9
Deepest snow cover	3

Records on 15 May 1956 by timescale: all-time 2, monthly 10, daily 454.

How Much Records Were Beaten By

373 broken records

Margins by which the 373 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 450.0. Ties are not counted.

Top 20 by Significance

15 May 1956

Top 20 records on 15 May 1956 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 May 1956	Houston, US	all-time rain	127.0 mm (5.0 in)	24.1 mm (0.9 in)	52 years	62 of 100 (Major)
15 May 1956	Avoca (Post Office), AU	monthly rain	72.4 mm (2.9 in)	27.2 mm (1.1 in)	16 years	61 of 100 (Major)
15 May 1956	Bikrampur, IN	daily rain	216.2 mm (8.5 in)	138.7 mm (5.5 in)	41 years	57 of 100 (Notable)
15 May 1956	Moonambel, AU	monthly rain	77.5 mm (3.1 in)	22.9 mm (0.9 in)	49 years	54 of 100 (Notable)
15 May 1956	Cape Don, AU	daily rain	33.8 mm (1.3 in)	33.0 mm (1.3 in)	27 years	52 of 100 (Notable)
15 May 1956	Moanalua 770, US	daily rain	35.6 mm (1.4 in)	23.2 mm (0.9 in)	43 years	51 of 100 (Notable)
15 May 1956	Mtn Grove 2 N, US	monthly rain	115.6 mm (4.6 in)	37.1 mm (1.5 in)	23 years	50 of 100 (Notable)
15 May 1956	Willow Sprg Radio Kuku, US	monthly rain	133.4 mm (5.3 in)	44.8 mm (1.8 in)	6 years	48 of 100 (Notable)
15 May 1956	Jowai, IN	daily rain	218.4 mm (8.6 in)	166.3 mm (6.5 in)	7 years	47 of 100 (Notable)
15 May 1956	Stewart, CA	daily rain	33.8 mm (1.3 in)	23.1 mm (0.9 in)	9 years	46 of 100 (Notable)
15 May 1956	Indpur, IN	daily rain	81.3 mm (3.2 in)	73.7 mm (2.9 in)	7 years	46 of 100 (Notable)
15 May 1956	Hailey 3 WSW, US	daily rain	101.6 mm (4.0 in)	84.3 mm (3.3 in)	10 years	46 of 100 (Notable)
15 May 1956	Kapalama 773, US	daily rain	43.7 mm (1.7 in)	27.4 mm (1.1 in)	24 years	45 of 100 (Notable)
15 May 1956	Oak Park, AU	daily rain	29.0 mm (1.1 in)	19.3 mm (0.8 in)	32 years	44 of 100 (Notable)
15 May 1956	Asansol Obsy Sr, IN	daily rain	74.9 mm (2.9 in)	49.8 mm (2.0 in)	10 years	44 of 100 (Notable)
15 May 1956	Northcliffe, AU	daily rain	51.3 mm (2.0 in)	37.6 mm (1.5 in)	24 years	43 of 100 (Notable)
15 May 1956	Birch Tree, US	daily rain	87.4 mm (3.4 in)	39.6 mm (1.6 in)	33 years	42 of 100 (Notable)
15 May 1956	Sitka Magnetic Obsy, US	daily rain	45.7 mm (1.8 in)	20.3 mm (0.8 in)	30 years	40 of 100 (Notable)
15 May 1956	Williamsville, US	daily rain	64.3 mm (2.5 in)	44.5 mm (1.8 in)	23 years	39 of 100 (Notable)
15 May 1956	Bangalup, AU	daily rain	28.7 mm (1.1 in)	18.0 mm (0.7 in)	32 years	37 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

1820 to 1956

Records set or tied on this calendar date in each year from 1820 to 1956. 1956 had 466 records.

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

Records on 05-15 in each year
Year	Records
1820	1
1825	1
1831	1
1832	1
1837	2
1845	1
1847	2
1848	1
1855	2
1857	2
1859	1
1862	1
1863	1
1865	1
1866	2
1867	1
1868	2
1870	1
1871	3
1874	2
1876	4
1878	1
1879	2
1881	1
1883	1
1885	1
1886	2
1888	3
1891	3
1893	5
1894	2
1895	4
1896	2
1897	4
1898	3
1899	9
1900	9
1901	2
1902	9
1903	4
1904	13
1905	16
1906	10
1907	27
1908	25
1909	89
1910	27
1911	27
1912	26
1913	60
1914	16
1915	236
1916	27
1917	80
1918	133
1919	25
1920	58
1921	92
1922	30
1923	125
1924	174
1925	100
1926	161
1927	191
1928	144
1929	161
1930	136
1931	459
1932	368
1933	439
1934	227
1935	288
1936	372
1937	373
1938	393
1939	351
1940	179
1941	454
1942	701
1943	568
1944	630
1945	588
1946	238
1947	334
1948	264
1949	363
1950	260
1951	736
1952	476
1953	426
1954	355
1955	538
1956	466
1957	521
1958	605
1959	764
1960	291
1961	508
1962	1,128
1963	782
1964	347
1965	320
1966	389
1967	609
1968	1,019
1969	790
1970	512
1971	351
1972	484
1973	818
1974	1,230
1975	372
1976	803
1977	1,186
1978	922
1979	404
1980	625
1981	586
1982	500
1983	1,215
1984	1,059
1985	649
1986	679
1987	1,073
1988	643
1989	552
1990	776
1991	1,179
1992	944
1993	784
1994	910
1995	1,750
1996	1,452
1997	1,175
1998	1,641
1999	810
2000	850
2001	1,280
2002	801
2003	1,023
2004	1,046
2005	767
2006	955
2007	949
2008	995
2009	675
2010	1,088
2011	1,298
2012	751
2013	1,081
2014	1,411
2015	717
2016	890
2017	435
2018	1,074
2019	627
2020	472
2021	412
2022	847
2023	566
2024	596
2025	801
2026	481

Download the Data

Data for records on 1956-05-15: 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	369
100 to 200	3
200 to 300	0
300 to 400	0
400 to 500	1