Weather Records on 18 July 2020

361 weather records were set or tied worldwide on 18 July 2020. Highest significance: Oshima, JP.

Key Facts for 18 July 2020

On 18 July 2020, 361 weather records were set or tied at long-record stations worldwide.
218 were record highs and 66 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 9 monthly and 349 daily.
Oshima set a daily record precipitation of 184.9 mm (7.3 in) on 18 July 2020.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 462 records.

Record Map

361 stations

361 station records on 18 July 2020 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 July 2020: highest significance records shown on the map
Station	Country	Type	Value	Significance
Oshima	Japan	Record daily precipitation	184.9 mm (7.3 in)	60 of 100 (Major)
Irozaki	Japan	Record daily precipitation	205.0 mm (8.1 in)	59 of 100 (Notable)
Kahuku 912	United States	Record high maximum temperature	32.8 C (91.0 F)	56 of 100 (Notable)
Madeline Is	United States	Record daily precipitation	70.9 mm (2.8 in)	52 of 100 (Notable)
Charleston	United States	Record daily precipitation	66.0 mm (2.6 in)	51 of 100 (Notable)
Williamsville	United States	Record daily precipitation	65.8 mm (2.6 in)	50 of 100 (Notable)
Katsuura	Japan	Record daily precipitation	126.0 mm (5.0 in)	48 of 100 (Notable)
Flekkefjord	Norway	Record daily precipitation	72.5 mm (2.9 in)	48 of 100 (Notable)
San Francisco Oceanside	United States	Record low minimum temperature	6.1 C (43.0 F)	47 of 100 (Notable)
Hefei	China	Record daily precipitation	199.1 mm (7.8 in)	43 of 100 (Notable)
Sucinsk	Kazakhstan	Record high minimum temperature	22.9 C (73.2 F)	43 of 100 (Notable)
Traverse Cy Cherry Capital AP	United States	Record daily precipitation	27.7 mm (1.1 in)	42 of 100 (Notable)
Lautoka	Fiji	Record daily precipitation	69.9 mm (2.8 in)	41 of 100 (Notable)
Kokshetay	Kazakhstan	Record high minimum temperature	23.3 C (73.9 F)	41 of 100 (Notable)
Choibalsan	Mongolia	Record daily precipitation	43.9 mm (1.7 in)	41 of 100 (Notable)
Ozark	United States	Record daily precipitation	58.9 mm (2.3 in)	41 of 100 (Notable)
Tateyama	Japan	Record daily precipitation	112.0 mm (4.4 in)	39 of 100 (Notable)
Nis	Serbia	Record daily precipitation	30.5 mm (1.2 in)	39 of 100 (Notable)
Daytona Beach	United States	Record high minimum temperature	28.3 C (82.9 F)	39 of 100 (Notable)
Abiquiu Dam	United States	Record low minimum temperature	5.6 C (42.1 F)	39 of 100 (Notable)
Kustanai	Kazakhstan	Record high minimum temperature	21.9 C (71.4 F)	38 of 100 (Notable)
Linguere	Senegal	Record daily precipitation	57.9 mm (2.3 in)	37 of 100 (Notable)
Melrose	United States	Record daily precipitation	66.3 mm (2.6 in)	37 of 100 (Notable)
White Sands Natl Mon	United States	Record high minimum temperature	25.6 C (78.1 F)	37 of 100 (Notable)
Petersburg 2 N	United States	Record daily precipitation	33.8 mm (1.3 in)	36 of 100 (Notable)
Sterlitamak	Russia	Record high minimum temperature	21.4 C (70.5 F)	35 of 100 (Notable)
Orenburg	Russia	Record high maximum temperature	38.8 C (101.8 F)	35 of 100 (Notable)
Mammoth Cave	United States	Record daily precipitation	40.4 mm (1.6 in)	35 of 100 (Notable)
Atlanta Hartsfield-Jackson Int	United States	Record high minimum temperature	25.0 C (77.0 F)	35 of 100 (Notable)
Aktobe	Kazakhstan	Record high maximum temperature	39.6 C (103.3 F)	34 of 100 (Routine)
Bogucany	Russia	Record low maximum temperature	16.7 C (62.1 F)	34 of 100 (Routine)
Mammoth Spring	United States	Record daily precipitation	36.1 mm (1.4 in)	34 of 100 (Routine)
Krasnoufimsk	Russia	Record high minimum temperature	17.5 C (63.5 F)	33 of 100 (Routine)
Belcourt Keya Radio	United States	Record daily precipitation	32.5 mm (1.3 in)	33 of 100 (Routine)
Jamestown State Hosp	United States	Record daily precipitation	48.3 mm (1.9 in)	33 of 100 (Routine)
Pennington Gap	United States	Record high maximum temperature	35.6 C (96.1 F)	33 of 100 (Routine)
Anniston Metro AP	United States	Record high minimum temperature	23.3 C (73.9 F)	33 of 100 (Routine)
Uil	Kazakhstan	Record high maximum temperature	42.2 C (108.0 F)	32 of 100 (Routine)
Caransebes	Romania	Record daily precipitation	33.9 mm (1.3 in)	32 of 100 (Routine)
Franklin Falls Dam	United States	Record low maximum temperature	18.9 C (66.0 F)	32 of 100 (Routine)
Bristol AP	United States	Record high maximum temperature	34.4 C (93.9 F)	32 of 100 (Routine)
Onaway 4N	United States	Record daily precipitation	57.7 mm (2.3 in)	31 of 100 (Routine)
Winfield Locks	United States	Record high minimum temperature	22.8 C (73.0 F)	31 of 100 (Routine)
Rome R B Russell AP	United States	Record high minimum temperature	23.9 C (75.0 F)	31 of 100 (Routine)
Dongtai	China	Record daily precipitation	77.0 mm (3.0 in)	30 of 100 (Routine)
Barren Rvr Lake	United States	Record daily precipitation	52.3 mm (2.1 in)	30 of 100 (Routine)
Bemidji	United States	Record daily precipitation	33.0 mm (1.3 in)	30 of 100 (Routine)
Sarh	Chad	Record high minimum temperature	24.0 C (75.2 F)	29 of 100 (Routine)
Puttalam	Sri Lanka	Record high maximum temperature	34.0 C (93.2 F)	29 of 100 (Routine)
Yichang	China	Record low maximum temperature	23.5 C (74.3 F)	29 of 100 (Routine)
Esil	Kazakhstan	Record high minimum temperature	19.9 C (67.8 F)	29 of 100 (Routine)
Vanavara	Russia	Record low maximum temperature	14.0 C (57.2 F)	29 of 100 (Routine)
Ulety	Russia	Record low minimum temperature	7.6 C (45.7 F)	29 of 100 (Routine)
Dimmitt	United States	Record high minimum temperature	22.8 C (73.0 F)	29 of 100 (Routine)
Oak Ridge Atdd	United States	Record high minimum temperature	23.9 C (75.0 F)	29 of 100 (Routine)
Chunggang	Korea, North	Record high maximum temperature	37.5 C (99.5 F)	28 of 100 (Routine)
Mt Locke	United States	Record high maximum temperature	36.7 C (98.1 F)	28 of 100 (Routine)
Kahului AP	United States	Record high maximum temperature	33.9 C (93.0 F)	28 of 100 (Routine)
Yanchi	China	Record low minimum temperature	11.2 C (52.2 F)	27 of 100 (Routine)
Georgetown 1 E	United States	Record daily precipitation	41.7 mm (1.6 in)	27 of 100 (Routine)

Counts by Type and Timescale

361 records

Records set or tied on 18 July 2020 by type: Highest daily maximum 72, Lowest daily maximum 38, Highest daily minimum 146, Lowest daily minimum 28, Heaviest daily rainfall 77.

Records on 18 July 2020 by type
Record type	Records
Highest daily maximum	72
Lowest daily maximum	38
Highest daily minimum	146
Lowest daily minimum	28
Heaviest daily rainfall	77
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 July 2020 by timescale: all-time 3, monthly 9, daily 349.

How Much Records Were Beaten By

255 broken records

Margins by which the 255 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 133.0. Ties are not counted.

Top 20 by Significance

18 July 2020

Top 20 records on 18 July 2020 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 July 2020	Oshima, JP	daily rain	184.9 mm (7.3 in)	103.7 mm (4.1 in)	67 years	60 of 100 (Major)
18 July 2020	Irozaki, JP	daily rain	205.0 mm (8.1 in)	133.0 mm (5.2 in)	41 years	59 of 100 (Notable)
18 July 2020	Kahuku 912, US	monthly high max	32.8 C (91.0 F)	0.6 C (1.1 F)	100 years	56 of 100 (Notable)
18 July 2020	Madeline Is, US	daily rain	70.9 mm (2.8 in)	43.0 mm (1.7 in)	42 years	52 of 100 (Notable)
18 July 2020	Charleston, US	daily rain	66.0 mm (2.6 in)	43.1 mm (1.7 in)	45 years	51 of 100 (Notable)
18 July 2020	Williamsville, US	daily rain	65.8 mm (2.6 in)	27.2 mm (1.1 in)	82 years	50 of 100 (Notable)
18 July 2020	Katsuura, JP	daily rain	126.0 mm (5.0 in)	90.9 mm (3.6 in)	14 years	48 of 100 (Notable)
18 July 2020	Flekkefjord, NO	daily rain	72.5 mm (2.9 in)	51.0 mm (2.0 in)	9 years	48 of 100 (Notable)
18 July 2020	San Francisco Oceanside, US	daily low min	6.1 C (43.0 F)	3.9 C (7.0 F)	50 years	47 of 100 (Notable)
18 July 2020	Hefei, CN	monthly rain	199.1 mm (7.8 in)	52.5 mm (2.1 in)	10 years	43 of 100 (Notable)
18 July 2020	Sucinsk, KZ	all-time high min	22.9 C (73.2 F)	1.9 C (3.4 F)	43 years	43 of 100 (Notable)
18 July 2020	Traverse Cy Cherry Capital AP, US	daily rain	27.7 mm (1.1 in)	2.3 mm (0.09 in)	112 years	42 of 100 (Notable)
18 July 2020	Lautoka, FJ	daily rain	69.9 mm (2.8 in)	45.1 mm (1.8 in)	38 years	41 of 100 (Notable)
18 July 2020	Kokshetay, KZ	daily high min	23.3 C (73.9 F)	4.4 C (7.9 F)	67 years	41 of 100 (Notable)
18 July 2020	Choibalsan, MN	daily rain	43.9 mm (1.7 in)	20.9 mm (0.8 in)	53 years	41 of 100 (Notable)
18 July 2020	Ozark, US	daily rain	58.9 mm (2.3 in)	24.6 mm (1.0 in)	73 years	41 of 100 (Notable)
18 July 2020	Tateyama, JP	daily rain	112.0 mm (4.4 in)	59.0 mm (2.3 in)	33 years	39 of 100 (Notable)
18 July 2020	Nis, RS	daily rain	30.5 mm (1.2 in)	20.1 mm (0.8 in)	20 years	39 of 100 (Notable)
18 July 2020	Daytona Beach, US	daily high min	28.3 C (82.9 F)	1.6 C (2.9 F)	68 years	39 of 100 (Notable)
18 July 2020	Abiquiu Dam, US	daily low min	5.6 C (42.1 F)	3.8 C (6.8 F)	59 years	39 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

1793 to 2020

Records set or tied on this calendar date in each year from 1793 to 2020. 2020 had 361 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 2020-07-18: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	239
20 to 40	7
40 to 60	6
60 to 80	0
80 to 100	1
100 to 120	1
120 to 140	1