Weather Records on 18 August 1950

683 weather records were set or tied worldwide on 18 August 1950. Highest significance: Rjukan, NO.

Key Facts for 18 August 1950

On 18 August 1950, 683 weather records were set or tied at long-record stations worldwide.
145 were record highs and 338 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 12 monthly and 671 daily.
Rjukan set a daily record precipitation of 71.0 mm (2.8 in) on 18 August 1950.
Across 171 earlier years (1797 to 2026) the same calendar date averaged 440 records.

Record Map

683 stations

683 station records on 18 August 1950 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 August 1950: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rjukan	Norway	Record daily precipitation	71.0 mm (2.8 in)	56 of 100 (Notable)
Cudgen Plantation	Australia	Record daily precipitation	58.2 mm (2.3 in)	49 of 100 (Notable)
Colton Railway Station	Australia	Record daily precipitation	25.4 mm (1.0 in)	44 of 100 (Notable)
St Marys (Clive Street)	Australia	Record daily precipitation	41.9 mm (1.6 in)	43 of 100 (Notable)
Santa Fe	United States	Record low minimum temperature	6.7 C (44.1 F)	42 of 100 (Notable)
Lima Wwtp	United States	Record daily precipitation	45.7 mm (1.8 in)	41 of 100 (Notable)
Sursand	India	Record daily precipitation	120.7 mm (4.8 in)	40 of 100 (Notable)
Chanchal	India	Record daily precipitation	74.2 mm (2.9 in)	37 of 100 (Notable)
Deloraine (Athol)	Australia	Record daily precipitation	50.8 mm (2.0 in)	36 of 100 (Notable)
Hiasen I Sigdal	Norway	Record daily precipitation	46.5 mm (1.8 in)	35 of 100 (Notable)
Tulsa	United States	Record daily precipitation	63.5 mm (2.5 in)	35 of 100 (Notable)
Fingal (Legge Street)	Australia	Record daily precipitation	28.2 mm (1.1 in)	34 of 100 (Routine)
St Louis St Louis UNIV	United States	Record daily precipitation	74.4 mm (2.9 in)	33 of 100 (Routine)
Pahala 21	United States	Record low maximum temperature	23.9 C (75.0 F)	33 of 100 (Routine)
Eden (Caravan Park)	Australia	Record daily precipitation	39.6 mm (1.6 in)	32 of 100 (Routine)
Tuddal	Norway	Record daily precipitation	56.0 mm (2.2 in)	32 of 100 (Routine)
Hickory 1 E	United States	Record daily precipitation	50.8 mm (2.0 in)	32 of 100 (Routine)
Lifjell	Norway	Record daily precipitation	45.7 mm (1.8 in)	31 of 100 (Routine)
Britt 3E	United States	Record low minimum temperature	3.3 C (37.9 F)	31 of 100 (Routine)
Jeanerette 5 NW	United States	Record high minimum temperature	25.6 C (78.1 F)	31 of 100 (Routine)
Tilba Tilba	Australia	Record daily precipitation	34.5 mm (1.4 in)	30 of 100 (Routine)
Arthurs Lake (Upper)	Australia	Record daily precipitation	35.8 mm (1.4 in)	30 of 100 (Routine)
Farmland 5 NNW	United States	Record daily precipitation	72.9 mm (2.9 in)	30 of 100 (Routine)
Salem	United States	Record daily precipitation	36.1 mm (1.4 in)	30 of 100 (Routine)
Juandah	Australia	Record daily precipitation	26.7 mm (1.1 in)	29 of 100 (Routine)
Faerder Fyr	Norway	Record daily precipitation	38.3 mm (1.5 in)	29 of 100 (Routine)
Kurgan	Russia	Record daily precipitation	43.0 mm (1.7 in)	29 of 100 (Routine)
Du Quoin 4 SE	United States	Record daily precipitation	78.7 mm (3.1 in)	29 of 100 (Routine)
Ulysses 3NE	United States	Record low minimum temperature	9.4 C (48.9 F)	29 of 100 (Routine)
Bluewater 3 WSW	United States	Record low minimum temperature	2.8 C (37.0 F)	29 of 100 (Routine)
Nashlyn	Canada	Record low minimum temperature	-3.9 C (25.0 F)	28 of 100 (Routine)
Prince	Canada	Record low maximum temperature	8.9 C (48.0 F)	28 of 100 (Routine)
Benipatti	India	Record daily precipitation	69.9 mm (2.8 in)	28 of 100 (Routine)
Gvarv	Norway	Record daily precipitation	40.0 mm (1.6 in)	28 of 100 (Routine)
Jeffersonville	United States	Record daily precipitation	31.5 mm (1.2 in)	28 of 100 (Routine)
Oolitic Purdue Ex Fm	United States	Record daily precipitation	50.8 mm (2.0 in)	28 of 100 (Routine)
Northwood	United States	Record low minimum temperature	5.6 C (42.1 F)	28 of 100 (Routine)
El Dorado Goodwin Fld	United States	Record daily precipitation	79.5 mm (3.1 in)	28 of 100 (Routine)
Postmyr I Drangedal	Norway	Record daily precipitation	62.5 mm (2.5 in)	27 of 100 (Routine)
Rauland	Norway	Record daily precipitation	38.0 mm (1.5 in)	27 of 100 (Routine)
Pine Bluff	United States	Record daily precipitation	34.5 mm (1.4 in)	27 of 100 (Routine)
Antioch	United States	Record low maximum temperature	18.3 C (64.9 F)	27 of 100 (Routine)
Neosho	United States	Record low maximum temperature	22.2 C (72.0 F)	27 of 100 (Routine)
Stevens Pt	United States	Record low minimum temperature	2.8 C (37.0 F)	27 of 100 (Routine)
Gronbaek-Allingskovgard	Denmark	Record daily precipitation	32.4 mm (1.3 in)	26 of 100 (Routine)
Longmont 2 ESE	United States	Record low minimum temperature	6.1 C (43.0 F)	26 of 100 (Routine)
Kissimmee	United States	Record low minimum temperature	20.6 C (69.1 F)	26 of 100 (Routine)
Bluffton Wtr Wks	United States	Record daily precipitation	53.8 mm (2.1 in)	26 of 100 (Routine)
Long Prairie	United States	Record low minimum temperature	1.1 C (34.0 F)	26 of 100 (Routine)
Antigo	United States	Record low minimum temperature	2.2 C (36.0 F)	26 of 100 (Routine)
Hamilton	Canada	Record low maximum temperature	17.2 C (63.0 F)	25 of 100 (Routine)
Partapganj	India	Record daily precipitation	63.5 mm (2.5 in)	25 of 100 (Routine)
Nainital	India	Record daily precipitation	147.8 mm (5.8 in)	25 of 100 (Routine)
Wonderboom	South Africa	Record daily precipitation	41.9 mm (1.6 in)	25 of 100 (Routine)
Russellville	United States	Record low maximum temperature	29.4 C (84.9 F)	25 of 100 (Routine)
Le Grand	United States	Record high maximum temperature	44.4 C (111.9 F)	25 of 100 (Routine)
Muncie 4 SE	United States	Record daily precipitation	71.6 mm (2.8 in)	25 of 100 (Routine)
Noblesville River	United States	Record daily precipitation	48.3 mm (1.9 in)	25 of 100 (Routine)
Rosedale	United States	Record low maximum temperature	28.9 C (84.0 F)	25 of 100 (Routine)
Westhope	United States	Record low maximum temperature	12.8 C (55.0 F)	25 of 100 (Routine)

Counts by Type and Timescale

683 records

Records set or tied on 18 August 1950 by type: Highest daily maximum 101, Lowest daily maximum 121, Highest daily minimum 44, Lowest daily minimum 217, Heaviest daily rainfall 200.

Records on 18 August 1950 by type
Record type	Records
Highest daily maximum	101
Lowest daily maximum	121
Highest daily minimum	44
Lowest daily minimum	217
Heaviest daily rainfall	200
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 August 1950 by timescale: all-time 0, monthly 12, daily 671.

How Much Records Were Beaten By

521 broken records

Margins by which the 521 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 85.4. Ties are not counted.

Top 20 by Significance

18 August 1950

Top 20 records on 18 August 1950 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 August 1950	Rjukan, NO	daily rain	71.0 mm (2.8 in)	42.0 mm (1.7 in)	48 years	56 of 100 (Notable)
18 August 1950	Cudgen Plantation, AU	daily rain	58.2 mm (2.3 in)	40.7 mm (1.6 in)	51 years	49 of 100 (Notable)
18 August 1950	Colton Railway Station, AU	daily rain	25.4 mm (1.0 in)	25.4 mm (1.0 in)	40 years	44 of 100 (Notable)
18 August 1950	St Marys (Clive Street), AU	daily rain	41.9 mm (1.6 in)	35.5 mm (1.4 in)	41 years	43 of 100 (Notable)
18 August 1950	Santa Fe, US	daily low min	6.7 C (44.1 F)	2.7 C (4.9 F)	75 years	42 of 100 (Notable)
18 August 1950	Lima Wwtp, US	daily rain	45.7 mm (1.8 in)	33.0 mm (1.3 in)	37 years	41 of 100 (Notable)
18 August 1950	Sursand, IN	daily rain	120.7 mm (4.8 in)	85.4 mm (3.4 in)	28 years	40 of 100 (Notable)
18 August 1950	Chanchal, IN	daily rain	74.2 mm (2.9 in)	51.3 mm (2.0 in)	44 years	37 of 100 (Notable)
18 August 1950	Deloraine (Athol), AU	daily rain	50.8 mm (2.0 in)	20.8 mm (0.8 in)	24 years	36 of 100 (Notable)
18 August 1950	Hiasen I Sigdal, NO	daily rain	46.5 mm (1.8 in)	15.4 mm (0.6 in)	47 years	35 of 100 (Notable)
18 August 1950	Tulsa, US	daily rain	63.5 mm (2.5 in)	44.4 mm (1.7 in)	12 years	35 of 100 (Notable)
18 August 1950	Fingal (Legge Street), AU	daily rain	28.2 mm (1.1 in)	16.5 mm (0.6 in)	24 years	34 of 100 (Routine)
18 August 1950	St Louis St Louis UNIV, US	daily rain	74.4 mm (2.9 in)	53.8 mm (2.1 in)	19 years	33 of 100 (Routine)
18 August 1950	Pahala 21, US	daily low max	23.9 C (75.0 F)	2.8 C (5.0 F)	33 years	33 of 100 (Routine)
18 August 1950	Eden (Caravan Park), AU	daily rain	39.6 mm (1.6 in)	23.1 mm (0.9 in)	29 years	32 of 100 (Routine)
18 August 1950	Tuddal, NO	daily rain	56.0 mm (2.2 in)	16.0 mm (0.6 in)	44 years	32 of 100 (Routine)
18 August 1950	Hickory 1 E, US	daily rain	50.8 mm (2.0 in)	26.7 mm (1.1 in)	32 years	32 of 100 (Routine)
18 August 1950	Lifjell, NO	daily rain	45.7 mm (1.8 in)	13.7 mm (0.5 in)	44 years	31 of 100 (Routine)
18 August 1950	Britt 3E, US	daily low min	3.3 C (37.9 F)	4.5 C (8.1 F)	52 years	31 of 100 (Routine)
18 August 1950	Jeanerette 5 NW, US	daily high min	25.6 C (78.1 F)	1.7 C (3.1 F)	53 years	31 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

1797 to 1950

Records set or tied on this calendar date in each year from 1797 to 1950. 1950 had 683 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 1950-08-18: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 20	490
20 to 40	24
40 to 60	6
60 to 80	0
80 to 100	1