Weather Records on 18 August 1956

580 weather records were set or tied worldwide on 18 August 1956. Highest significance: Red Oak, US.

Key Facts for 18 August 1956

On 18 August 1956, 580 weather records were set or tied at long-record stations worldwide.
196 were record highs and 225 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 5 monthly and 575 daily.
Red Oak set a daily record precipitation of 91.4 mm (3.6 in) on 18 August 1956.
Across 171 earlier years (1797 to 2026) the same calendar date averaged 440 records.

Record Map

580 stations

580 station records on 18 August 1956 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 August 1956: highest significance records shown on the map
Station	Country	Type	Value	Significance
Red Oak	United States	Record daily precipitation	91.4 mm (3.6 in)	57 of 100 (Notable)
Ramnagar	India	Record daily precipitation	241.3 mm (9.5 in)	55 of 100 (Notable)
Perryton	United States	Record daily precipitation	87.9 mm (3.5 in)	54 of 100 (Notable)
Sarnia	Canada	Record daily precipitation	33.5 mm (1.3 in)	49 of 100 (Notable)
Sedan 7 NW	United States	Record daily precipitation	62.0 mm (2.4 in)	49 of 100 (Notable)
Marnai	India	Record daily precipitation	217.9 mm (8.6 in)	47 of 100 (Notable)
Lincoln UNIV Pwr Plt	United States	Record daily precipitation	59.9 mm (2.4 in)	47 of 100 (Notable)
Buxton	United Kingdom	Record daily precipitation	40.6 mm (1.6 in)	46 of 100 (Notable)
Red Lodge	United States	Record daily precipitation	30.2 mm (1.2 in)	45 of 100 (Notable)
Poco Das Trincheiras	Brazil	Record daily precipitation	43.2 mm (1.7 in)	44 of 100 (Notable)
Sable Island	Canada	Record daily precipitation	71.4 mm (2.8 in)	44 of 100 (Notable)
Jatusana	India	Record daily precipitation	88.9 mm (3.5 in)	44 of 100 (Notable)
Ericson 8 WNW	United States	Record daily precipitation	38.6 mm (1.5 in)	44 of 100 (Notable)
Marinette	United States	Record daily precipitation	38.1 mm (1.5 in)	43 of 100 (Notable)
Wichita Falls Muni AP	United States	Record daily precipitation	60.5 mm (2.4 in)	42 of 100 (Notable)
Canguaretama	Brazil	Record daily precipitation	35.0 mm (1.4 in)	41 of 100 (Notable)
Cherrapunji	India	Record daily precipitation	434.3 mm (17.1 in)	39 of 100 (Notable)
Lincoln Agronomy Farm	United States	Record daily precipitation	57.2 mm (2.3 in)	39 of 100 (Notable)
Lincoln College View	United States	Record daily precipitation	52.1 mm (2.1 in)	38 of 100 (Notable)
Barabinsk	Russia	Record daily precipitation	30.2 mm (1.2 in)	36 of 100 (Notable)
Broken Bow 2 W	United States	Record daily precipitation	47.0 mm (1.9 in)	36 of 100 (Notable)
Groot Constantia	South Africa	Record daily precipitation	54.0 mm (2.1 in)	33 of 100 (Routine)
Newark Ag Farm	United States	Record high maximum temperature	33.9 C (93.0 F)	32 of 100 (Routine)
Qu'appelle	Canada	Record low minimum temperature	0.6 C (33.1 F)	31 of 100 (Routine)
Forestburg 4 NNE	United States	Record low maximum temperature	18.3 C (64.9 F)	31 of 100 (Routine)
Tura	India	Record daily precipitation	284.7 mm (11.2 in)	30 of 100 (Routine)
Abohar	India	Record daily precipitation	82.6 mm (3.3 in)	30 of 100 (Routine)
Marengo	United States	Record daily precipitation	49.8 mm (2.0 in)	30 of 100 (Routine)
Newkirk	United States	Record daily precipitation	37.8 mm (1.5 in)	30 of 100 (Routine)
Ft Yates 4 SW	United States	Record low maximum temperature	18.3 C (64.9 F)	30 of 100 (Routine)
Miller	United States	Record low maximum temperature	17.2 C (63.0 F)	30 of 100 (Routine)
Gurgaon	India	Record daily precipitation	75.4 mm (3.0 in)	29 of 100 (Routine)
Dadahor	India	Record daily precipitation	53.3 mm (2.1 in)	29 of 100 (Routine)
Arriba	United States	Record low maximum temperature	20.6 C (69.1 F)	29 of 100 (Routine)
New England	United States	Record low maximum temperature	15.0 C (59.0 F)	29 of 100 (Routine)
Willowghby East Lake	United States	Record daily precipitation	43.7 mm (1.7 in)	29 of 100 (Routine)
Quakertown	United States	Record high maximum temperature	33.3 C (91.9 F)	29 of 100 (Routine)
Federal Pt	United States	Record low minimum temperature	19.4 C (66.9 F)	28 of 100 (Routine)
Riverton	United States	Record daily precipitation	46.2 mm (1.8 in)	28 of 100 (Routine)
Bird City 10S	United States	Record daily precipitation	34.0 mm (1.3 in)	28 of 100 (Routine)
Bowman	United States	Record low maximum temperature	13.9 C (57.0 F)	28 of 100 (Routine)
Toledo Blade	United States	Record daily precipitation	37.8 mm (1.5 in)	28 of 100 (Routine)
Koloa 936	United States	Record daily precipitation	28.4 mm (1.1 in)	28 of 100 (Routine)
Watertown Rgnl AP	United States	Record low maximum temperature	17.2 C (63.0 F)	28 of 100 (Routine)
Clayton Muni Air Pk	United States	Record daily precipitation	68.8 mm (2.7 in)	28 of 100 (Routine)
Lakhipur	India	Record daily precipitation	89.2 mm (3.5 in)	27 of 100 (Routine)
Upper Shillong	India	Record daily precipitation	79.5 mm (3.1 in)	27 of 100 (Routine)
Lamar	United States	Record low maximum temperature	24.4 C (75.9 F)	27 of 100 (Routine)
Lamar	United States	Record daily precipitation	36.6 mm (1.4 in)	27 of 100 (Routine)
Corning	United States	Record daily precipitation	32.0 mm (1.3 in)	27 of 100 (Routine)
Busby	United States	Record low maximum temperature	15.6 C (60.1 F)	27 of 100 (Routine)
Bruning	United States	Record daily precipitation	37.8 mm (1.5 in)	27 of 100 (Routine)
Beach	United States	Record low maximum temperature	13.3 C (55.9 F)	27 of 100 (Routine)
Ellendale	United States	Record low maximum temperature	18.9 C (66.0 F)	27 of 100 (Routine)
Clark	United States	Record low maximum temperature	17.2 C (63.0 F)	27 of 100 (Routine)
Kesiary Kaltikri	India	Record daily precipitation	76.2 mm (3.0 in)	26 of 100 (Routine)
Ft Yukon	United States	Record high maximum temperature	26.1 C (79.0 F)	26 of 100 (Routine)
Hissar	India	Record daily precipitation	53.3 mm (2.1 in)	25 of 100 (Routine)
Jodhpur	India	Record daily precipitation	25.4 mm (1.0 in)	25 of 100 (Routine)
Sirkali	India	Record daily precipitation	81.8 mm (3.2 in)	25 of 100 (Routine)

Counts by Type and Timescale

580 records

Records set or tied on 18 August 1956 by type: Highest daily maximum 117, Lowest daily maximum 168, Highest daily minimum 79, Lowest daily minimum 57, Heaviest daily rainfall 159.

Records on 18 August 1956 by type
Record type	Records
Highest daily maximum	117
Lowest daily maximum	168
Highest daily minimum	79
Lowest daily minimum	57
Heaviest daily rainfall	159
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 August 1956 by timescale: all-time 0, monthly 5, daily 575.

How Much Records Were Beaten By

440 broken records

Margins by which the 440 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 204.4. Ties are not counted.

Top 20 by Significance

18 August 1956

Top 20 records on 18 August 1956 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 August 1956	Red Oak, US	daily rain	91.4 mm (3.6 in)	59.1 mm (2.3 in)	51 years	57 of 100 (Notable)
18 August 1956	Ramnagar, IN	monthly rain	241.3 mm (9.5 in)	95.8 mm (3.8 in)	16 years	55 of 100 (Notable)
18 August 1956	Perryton, US	monthly rain	87.9 mm (3.5 in)	30.7 mm (1.2 in)	46 years	54 of 100 (Notable)
18 August 1956	Sarnia, CA	daily rain	33.5 mm (1.3 in)	28.2 mm (1.1 in)	65 years	49 of 100 (Notable)
18 August 1956	Sedan 7 NW, US	daily rain	62.0 mm (2.4 in)	39.1 mm (1.5 in)	33 years	49 of 100 (Notable)
18 August 1956	Marnai, IN	daily rain	217.9 mm (8.6 in)	128.5 mm (5.1 in)	21 years	47 of 100 (Notable)
18 August 1956	Lincoln UNIV Pwr Plt, US	daily rain	59.9 mm (2.4 in)	42.4 mm (1.7 in)	51 years	47 of 100 (Notable)
18 August 1956	Buxton, GB	daily rain	40.6 mm (1.6 in)	20.6 mm (0.8 in)	29 years	46 of 100 (Notable)
18 August 1956	Red Lodge, US	daily rain	30.2 mm (1.2 in)	22.6 mm (0.9 in)	30 years	45 of 100 (Notable)
18 August 1956	Poco Das Trincheiras, BR	daily rain	43.2 mm (1.7 in)	29.0 mm (1.1 in)	19 years	44 of 100 (Notable)
18 August 1956	Sable Island, CA	daily rain	71.4 mm (2.8 in)	53.4 mm (2.1 in)	5 years	44 of 100 (Notable)
18 August 1956	Jatusana, IN	daily rain	88.9 mm (3.5 in)	50.8 mm (2.0 in)	39 years	44 of 100 (Notable)
18 August 1956	Ericson 8 WNW, US	daily rain	38.6 mm (1.5 in)	23.4 mm (0.9 in)	53 years	44 of 100 (Notable)
18 August 1956	Marinette, US	daily rain	38.1 mm (1.5 in)	35.6 mm (1.4 in)	31 years	43 of 100 (Notable)
18 August 1956	Wichita Falls Muni AP, US	daily rain	60.5 mm (2.4 in)	33.8 mm (1.3 in)	41 years	42 of 100 (Notable)
18 August 1956	Canguaretama, BR	daily rain	35.0 mm (1.4 in)	27.0 mm (1.1 in)	42 years	41 of 100 (Notable)
18 August 1956	Cherrapunji, IN	daily rain	434.3 mm (17.1 in)	204.4 mm (8.0 in)	36 years	39 of 100 (Notable)
18 August 1956	Lincoln Agronomy Farm, US	daily rain	57.2 mm (2.3 in)	38.7 mm (1.5 in)	11 years	39 of 100 (Notable)
18 August 1956	Lincoln College View, US	daily rain	52.1 mm (2.1 in)	42.7 mm (1.7 in)	2 years	38 of 100 (Notable)
18 August 1956	Barabinsk, RU	daily rain	30.2 mm (1.2 in)	10.2 mm (0.4 in)	52 years	36 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

1797 to 1956

Records set or tied on this calendar date in each year from 1797 to 1956. 1956 had 580 records.

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

Records on 08-18 in each year
Year	Records
1797	2
1805	1
1816	1
1827	1
1829	1
1830	1
1833	1
1841	1
1844	1
1845	3
1846	1
1847	1
1849	1
1851	1
1852	1
1853	1
1854	2
1855	1
1856	1
1861	1
1864	2
1866	1
1868	2
1869	1
1870	2
1872	1
1873	1
1875	3
1876	1
1878	1
1879	2
1883	3
1885	3
1886	3
1887	3
1888	2
1889	1
1890	1
1891	2
1892	6
1893	4
1894	4
1895	1
1898	4
1899	6
1900	2
1901	10
1902	8
1903	6
1904	8
1905	10
1906	40
1907	7
1908	21
1909	24
1910	16
1911	11
1912	21
1913	43
1914	37
1915	60
1916	71
1917	70
1918	53
1919	34
1920	51
1921	39
1922	129
1923	90
1924	225
1925	300
1926	168
1927	269
1928	141
1929	181
1930	150
1931	241
1932	382
1933	431
1934	638
1935	424
1936	766
1937	308
1938	243
1939	381
1940	434
1941	467
1942	333
1943	738
1944	325
1945	400
1946	416
1947	958
1948	315
1949	393
1950	683
1951	355
1952	405
1953	323
1954	622
1955	795
1956	580
1957	380
1958	580
1959	537
1960	599
1961	415
1962	428
1963	760
1964	443
1965	525
1966	573
1967	623
1968	795
1969	530
1970	597
1971	381
1972	493
1973	734
1974	639
1975	844
1976	917
1977	1,112
1978	854
1979	1,309
1980	771
1981	1,386
1982	563
1983	1,420
1984	600
1985	765
1986	861
1987	1,609
1988	1,351
1989	952
1990	920
1991	533
1992	1,497
1993	706
1994	1,027
1995	1,882
1996	760
1997	1,191
1998	923
1999	888
2000	1,183
2001	1,036
2002	1,306
2003	860
2004	1,050
2005	865
2006	842
2007	1,116
2008	1,265
2009	839
2010	1,167
2011	1,239
2012	1,247
2013	752
2014	751
2015	880
2016	704
2017	565
2018	462
2019	615
2020	1,541
2021	1,118
2022	1,237
2023	1,094
2024	696
2025	455
2026	545

Download the Data

Data for records on 1956-08-18: 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 50	434
50 to 100	4
100 to 150	1
150 to 200	0
200 to 250	1