Weather Records on 18 July 1940

352 weather records were set or tied worldwide on 18 July 1940. Highest significance: Marlinton, US.

Key Facts for 18 July 1940

On 18 July 1940, 352 weather records were set or tied at long-record stations worldwide.
148 were record highs and 96 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 6 monthly and 343 daily.
Marlinton set an all-time record high minimum temperature of 23.3 C (73.9 F) on 18 July 1940.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 463 records.

Record Map

352 stations

352 station records on 18 July 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 July 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Marlinton	United States	Record high minimum temperature	23.3 C (73.9 F)	40 of 100 (Notable)
Mena	United States	Record daily precipitation	56.1 mm (2.2 in)	38 of 100 (Notable)
Kurla	India	Record daily precipitation	146.6 mm (5.8 in)	35 of 100 (Notable)
Tranebjerg	Denmark	Record low minimum temperature	1.5 C (34.7 F)	33 of 100 (Routine)
Margaret River 1	Australia	Record daily precipitation	42.4 mm (1.7 in)	32 of 100 (Routine)
Hanover	United States	Record daily precipitation	102.4 mm (4.0 in)	31 of 100 (Routine)
Clemson UNIV	United States	Record daily precipitation	52.1 mm (2.1 in)	29 of 100 (Routine)
Chemnitz	Germany	Record low minimum temperature	6.0 C (42.8 F)	28 of 100 (Routine)
Halol	India	Record daily precipitation	106.4 mm (4.2 in)	27 of 100 (Routine)
Bhir	India	Record daily precipitation	41.1 mm (1.6 in)	27 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record high maximum temperature	42.8 C (109.0 F)	27 of 100 (Routine)
Hosanagar	India	Record daily precipitation	254.5 mm (10.0 in)	26 of 100 (Routine)
Dhenkanal	India	Record daily precipitation	68.1 mm (2.7 in)	26 of 100 (Routine)
Brooksville Chin Hill	United States	Record daily precipitation	53.1 mm (2.1 in)	26 of 100 (Routine)
Dholera	India	Record daily precipitation	81.0 mm (3.2 in)	25 of 100 (Routine)
Algona	United States	Record high maximum temperature	39.4 C (102.9 F)	25 of 100 (Routine)
Albert Lea 3SE	United States	Record high maximum temperature	39.4 C (102.9 F)	25 of 100 (Routine)
Hubbard	Canada	Record daily precipitation	88.9 mm (3.5 in)	24 of 100 (Routine)
Skagway	United States	Record high minimum temperature	14.4 C (57.9 F)	24 of 100 (Routine)
Fremantle	Australia	Record daily precipitation	34.3 mm (1.4 in)	23 of 100 (Routine)
Alice Springs Post Office	Australia	Record low minimum temperature	-4.0 C (24.8 F)	23 of 100 (Routine)
Aska	India	Record daily precipitation	62.5 mm (2.5 in)	23 of 100 (Routine)
Bharatpur	India	Record daily precipitation	54.1 mm (2.1 in)	23 of 100 (Routine)
Nogales	United States	Record low minimum temperature	13.3 C (55.9 F)	22 of 100 (Routine)
Estherville 4E	United States	Record high maximum temperature	39.4 C (102.9 F)	22 of 100 (Routine)
Dale Enterprise	United States	Record daily precipitation	33.3 mm (1.3 in)	22 of 100 (Routine)
Bunbury Post Office	Australia	Record daily precipitation	33.5 mm (1.3 in)	21 of 100 (Routine)
Lugano	Switzerland	Record daily precipitation	42.3 mm (1.7 in)	21 of 100 (Routine)
Kahuku 912	United States	Record high minimum temperature	24.4 C (75.9 F)	21 of 100 (Routine)
Fraser	United States	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Alamogordo 1	United States	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Poltava	Ukraine	Record daily precipitation	23.2 mm (0.9 in)	20 of 100 (Routine)
Alamogordo	United States	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Dickinson Exp STN	United States	Record daily precipitation	11.9 mm (0.5 in)	20 of 100 (Routine)
Deesa	India	Record daily precipitation	39.9 mm (1.6 in)	20 of 100 (Routine)
Karwar	India	Record daily precipitation	137.2 mm (5.4 in)	20 of 100 (Routine)
Tot-Ma	Russia	Record daily precipitation	24.2 mm (1.0 in)	20 of 100 (Routine)
Tobolsk	Russia	Record high minimum temperature	19.2 C (66.6 F)	20 of 100 (Routine)
Fairmont	United States	Record high minimum temperature	22.8 C (73.0 F)	20 of 100 (Routine)
Holly Springs 2 N	United States	Record low minimum temperature	16.7 C (62.1 F)	20 of 100 (Routine)
Bluewater 3 WSW	United States	Record low minimum temperature	6.1 C (43.0 F)	20 of 100 (Routine)
Wentworth 2.5 WNW	United States	Record high maximum temperature	40.0 C (104.0 F)	20 of 100 (Routine)
Youngs Siding	Australia	Record daily precipitation	27.9 mm (1.1 in)	19 of 100 (Routine)
Dunvegan	Canada	Record low maximum temperature	16.7 C (62.1 F)	19 of 100 (Routine)
Ilulissat (Jakobshavn)	Greenland [Denmark]	Record high maximum temperature	15.9 C (60.6 F)	19 of 100 (Routine)
Begumpet Obsy	India	Record daily precipitation	30.5 mm (1.2 in)	19 of 100 (Routine)
Bhuj Obsy Sr	India	Record daily precipitation	36.3 mm (1.4 in)	19 of 100 (Routine)
Sviland	Norway	Record daily precipitation	27.0 mm (1.1 in)	19 of 100 (Routine)
Hornindal	Norway	Record daily precipitation	27.2 mm (1.1 in)	19 of 100 (Routine)
Viljujsk	Russia	Record daily precipitation	25.9 mm (1.0 in)	19 of 100 (Routine)
Avon Park 2 W	United States	Record daily precipitation	55.9 mm (2.2 in)	19 of 100 (Routine)
Raiford State Prison	United States	Record low minimum temperature	16.7 C (62.1 F)	19 of 100 (Routine)
Milan 1NW	United States	Record high maximum temperature	41.7 C (107.1 F)	19 of 100 (Routine)
Carlsbad	United States	Record daily precipitation	15.7 mm (0.6 in)	19 of 100 (Routine)
Dayville	United States	Record daily precipitation	1.3 mm (0.05 in)	19 of 100 (Routine)
Castlewood	United States	Record high maximum temperature	40.6 C (105.1 F)	19 of 100 (Routine)
Loa	United States	Record low maximum temperature	20.6 C (69.1 F)	19 of 100 (Routine)
Simferopol	Ukraine	Record high minimum temperature	19.1 C (66.4 F)	18 of 100 (Routine)
Oracle	United States	Record low minimum temperature	11.1 C (52.0 F)	18 of 100 (Routine)
Brawley 2 SW	United States	Record low minimum temperature	13.9 C (57.0 F)	18 of 100 (Routine)

Counts by Type and Timescale

352 records

Records set or tied on 18 July 1940 by type: Highest daily maximum 76, Lowest daily maximum 49, Highest daily minimum 72, Lowest daily minimum 47, Heaviest daily rainfall 108.

Records on 18 July 1940 by type
Record type	Records
Highest daily maximum	76
Lowest daily maximum	49
Highest daily minimum	72
Lowest daily minimum	47
Heaviest daily rainfall	108
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 July 1940 by timescale: all-time 3, monthly 6, daily 343.

How Much Records Were Beaten By

270 broken records

Margins by which the 270 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 79.0. Ties are not counted.

Top 20 by Significance

18 July 1940

Top 20 records on 18 July 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 July 1940	Marlinton, US	all-time high min	23.3 C (73.9 F)	1.1 C (2.0 F)	43 years	40 of 100 (Notable)
18 July 1940	Mena, US	daily rain	56.1 mm (2.2 in)	31.2 mm (1.2 in)	35 years	38 of 100 (Notable)
18 July 1940	Kurla, IN	daily rain	146.6 mm (5.8 in)	79.0 mm (3.1 in)	27 years	35 of 100 (Notable)
18 July 1940	Tranebjerg, DK	daily low min	1.5 C (34.7 F)	5.5 C (9.9 F)	11 years	33 of 100 (Routine)
18 July 1940	Margaret River 1, AU	daily rain	42.4 mm (1.7 in)	24.6 mm (1.0 in)	21 years	32 of 100 (Routine)
18 July 1940	Hanover, US	monthly rain	102.4 mm (4.0 in)	13.5 mm (0.5 in)	23 years	31 of 100 (Routine)
18 July 1940	Clemson UNIV, US	daily rain	52.1 mm (2.1 in)	21.6 mm (0.9 in)	42 years	29 of 100 (Routine)
18 July 1940	Chemnitz, DE	daily low min	6.0 C (42.8 F)	2.0 C (3.6 F)	53 years	28 of 100 (Routine)
18 July 1940	Halol, IN	daily rain	106.4 mm (4.2 in)	52.6 mm (2.1 in)	31 years	27 of 100 (Routine)
18 July 1940	Bhir, IN	daily rain	41.1 mm (1.6 in)	23.3 mm (0.9 in)	27 years	27 of 100 (Routine)
18 July 1940	Morris W Cntrl Rsch & Outreach, US	all-time high max	42.8 C (109.0 F)	0.6 C (1.1 F)	5 years	27 of 100 (Routine)
18 July 1940	Hosanagar, IN	daily rain	254.5 mm (10.0 in)	61.5 mm (2.4 in)	29 years	26 of 100 (Routine)
18 July 1940	Dhenkanal, IN	daily rain	68.1 mm (2.7 in)	33.8 mm (1.3 in)	28 years	26 of 100 (Routine)
18 July 1940	Brooksville Chin Hill, US	daily rain	53.1 mm (2.1 in)	27.7 mm (1.1 in)	27 years	26 of 100 (Routine)
18 July 1940	Dholera, IN	daily rain	81.0 mm (3.2 in)	40.4 mm (1.6 in)	27 years	25 of 100 (Routine)
18 July 1940	Algona, US	daily high max	39.4 C (102.9 F)	3.3 C (5.9 F)	45 years	25 of 100 (Routine)
18 July 1940	Albert Lea 3SE, US	daily high max	39.4 C (102.9 F)	3.3 C (5.9 F)	45 years	25 of 100 (Routine)
18 July 1940	Hubbard, CA	monthly rain	88.9 mm (3.5 in)	2.5 mm (0.10 in)	30 years	24 of 100 (Routine)
18 July 1940	Skagway, US	daily high min	14.4 C (57.9 F)	2.2 C (4.0 F)	40 years	24 of 100 (Routine)
18 July 1940	Fremantle, AU	daily rain	34.3 mm (1.4 in)	5.6 mm (0.22 in)	32 years	23 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

1793 to 1940

Records set or tied on this calendar date in each year from 1793 to 1940. 1940 had 352 records.

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

Records on 07-18 in each year
Year	Records
1793	2
1801	1
1845	1
1847	1
1851	1
1858	1
1862	1
1863	2
1865	1
1866	2
1871	2
1872	1
1874	1
1877	1
1878	4
1880	1
1881	2
1883	2
1886	2
1887	2
1888	1
1889	2
1890	4
1891	1
1892	2
1895	1
1896	2
1897	6
1898	2
1899	3
1900	8
1901	5
1902	3
1903	14
1904	7
1905	22
1906	13
1907	12
1908	39
1909	11
1910	33
1911	42
1912	28
1913	21
1914	47
1915	95
1916	235
1917	265
1918	58
1919	38
1920	59
1921	67
1922	138
1923	126
1924	306
1925	217
1926	191
1927	85
1928	108
1929	123
1930	462
1931	382
1932	343
1933	228
1934	502
1935	212
1936	665
1937	334
1938	306
1939	424
1940	352
1941	349
1942	661
1943	277
1944	333
1945	350
1946	334
1947	385
1948	289
1949	521
1950	632
1951	307
1952	597
1953	493
1954	501
1955	423
1956	466
1957	325
1958	475
1959	548
1960	669
1961	280
1962	516
1963	269
1964	523
1965	707
1966	545
1967	735
1968	998
1969	590
1970	530
1971	625
1972	701
1973	976
1974	729
1975	643
1976	1,047
1977	839
1978	881
1979	821
1980	747
1981	624
1982	749
1983	1,071
1984	1,000
1985	582
1986	908
1987	1,845
1988	1,001
1989	1,233
1990	1,053
1991	589
1992	1,135
1993	1,013
1994	720
1995	904
1996	1,157
1997	785
1998	1,169
1999	900
2000	1,214
2001	909
2002	840
2003	1,159
2004	985
2005	1,210
2006	1,285
2007	1,267
2008	593
2009	1,757
2010	878
2011	1,148
2012	1,070
2013	921
2014	1,348
2015	745
2016	609
2017	426
2018	699
2019	548
2020	361
2021	676
2022	1,071
2023	867
2024	581
2025	779
2026	806

Download the Data

Data for records on 1940-07-18: 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 10	233
10 to 20	18
20 to 30	11
30 to 40	3
40 to 50	2
50 to 60	1
60 to 70	1
70 to 80	1