Weather Records on 18 July 2011

1,148 weather records were set or tied worldwide on 18 July 2011. Highest significance: Biloxi, US.

Key Facts for 18 July 2011

On 18 July 2011, 1,148 weather records were set or tied at long-record stations worldwide.
787 were record highs and 169 were record lows, counting maximum and minimum temperature.
By timescale, 18 were all-time records, 34 monthly and 1,096 daily.
Biloxi set a daily record precipitation of 222.3 mm (8.8 in) on 18 July 2011.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 457 records.

Record Map

1,148 stations

1,148 station records on 18 July 2011 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 July 2011: highest significance records shown on the map
Station	Country	Type	Value	Significance
Biloxi	United States	Record daily precipitation	222.3 mm (8.8 in)	79 of 100 (Major)
Arcadia	United States	Record daily precipitation	105.4 mm (4.1 in)	71 of 100 (Major)
Yerilla	Australia	Record daily precipitation	27.0 mm (1.1 in)	68 of 100 (Major)
Tixtla (Dge)	Mexico	Record daily precipitation	145.3 mm (5.7 in)	64 of 100 (Major)
Mierkenis_A	Sweden	Record daily precipitation	34.9 mm (1.4 in)	63 of 100 (Major)
Zhigalovo	Russia	Record daily precipitation	64.9 mm (2.6 in)	55 of 100 (Notable)
Barcelona -Fabra Observatory	Spain	Record daily precipitation	51.6 mm (2.0 in)	54 of 100 (Notable)
Eufaula Wildlife Ref	United States	Record daily precipitation	136.7 mm (5.4 in)	53 of 100 (Notable)
Rest Lake	United States	Record daily precipitation	124.5 mm (4.9 in)	53 of 100 (Notable)
Orlinga	Russia	Record daily precipitation	47.9 mm (1.9 in)	52 of 100 (Notable)
Neillsville 3ESE	United States	Record daily precipitation	64.3 mm (2.5 in)	52 of 100 (Notable)
Yuinmery	Australia	Record daily precipitation	30.2 mm (1.2 in)	51 of 100 (Notable)
Altotonga	Mexico	Record high minimum temperature	18.9 C (66.0 F)	50 of 100 (Notable)
Reedsburg Wwtp	United States	Record high minimum temperature	26.1 C (79.0 F)	50 of 100 (Notable)
Echo Dam	United States	Record high minimum temperature	21.1 C (70.0 F)	49 of 100 (Notable)
San Felipe	Mexico	Record daily precipitation	170.9 mm (6.7 in)	48 of 100 (Notable)
Boogardie	Australia	Record daily precipitation	33.8 mm (1.3 in)	46 of 100 (Notable)
Madison 2SE	United States	Record high minimum temperature	28.3 C (82.9 F)	46 of 100 (Notable)
Hopewell	United States	Record daily precipitation	25.4 mm (1.0 in)	46 of 100 (Notable)
Challa	Australia	Record daily precipitation	31.4 mm (1.2 in)	45 of 100 (Notable)
Crosby	United States	Record high minimum temperature	20.0 C (68.0 F)	45 of 100 (Notable)
Napoleon	United States	Record high minimum temperature	23.3 C (73.9 F)	45 of 100 (Notable)
Strathbogie North	Australia	Record daily precipitation	38.2 mm (1.5 in)	44 of 100 (Notable)
Olekminsk	Russia	Record high minimum temperature	20.4 C (68.7 F)	44 of 100 (Notable)
Mc Clusky	United States	Record high minimum temperature	23.9 C (75.0 F)	44 of 100 (Notable)
Emblem	United States	Record high minimum temperature	21.1 C (70.0 F)	44 of 100 (Notable)
Biloxi	United States	Record low maximum temperature	26.7 C (80.1 F)	43 of 100 (Notable)
Findlay Wpcc	United States	Record daily precipitation	59.4 mm (2.3 in)	43 of 100 (Notable)
Logan	United States	Record low maximum temperature	25.6 C (78.1 F)	43 of 100 (Notable)
Evanston 1 E	United States	Record high minimum temperature	15.6 C (60.1 F)	43 of 100 (Notable)
Rossared	Sweden	Record daily precipitation	42.5 mm (1.7 in)	42 of 100 (Notable)
Avesta	Sweden	Record daily precipitation	28.5 mm (1.1 in)	42 of 100 (Notable)
Stuttgart 9 ESE	United States	Record high minimum temperature	27.8 C (82.0 F)	42 of 100 (Notable)
Iron Mtn-Kingsford Wwtp	United States	Record daily precipitation	27.4 mm (1.1 in)	42 of 100 (Notable)
Dickinson Exp STN	United States	Record high minimum temperature	21.7 C (71.1 F)	42 of 100 (Notable)
Manassa	United States	Record high minimum temperature	15.0 C (59.0 F)	41 of 100 (Notable)
Rock Is L&D 15	United States	Record high maximum temperature	35.0 C (95.0 F)	41 of 100 (Notable)
Postville	United States	Record high minimum temperature	23.3 C (73.9 F)	41 of 100 (Notable)
Conception	United States	Record high minimum temperature	25.0 C (77.0 F)	41 of 100 (Notable)
Glasgow #2	United States	Record high minimum temperature	23.9 C (75.0 F)	41 of 100 (Notable)
Great Falls 16St	United States	Record high maximum temperature	38.3 C (100.9 F)	41 of 100 (Notable)
Aldama (Dge)	Mexico	Record low minimum temperature	16.7 C (62.1 F)	40 of 100 (Notable)
Norberg	Sweden	Record daily precipitation	30.1 mm (1.2 in)	40 of 100 (Notable)
Cheboygan	United States	Record daily precipitation	39.6 mm (1.6 in)	40 of 100 (Notable)
Pollock	United States	Record high minimum temperature	25.6 C (78.1 F)	40 of 100 (Notable)
Hayward Rs	United States	Record high minimum temperature	20.6 C (69.1 F)	40 of 100 (Notable)
Sukumo	Japan	Record daily precipitation	160.8 mm (6.3 in)	39 of 100 (Notable)
Canton	United States	Record high minimum temperature	25.0 C (77.0 F)	39 of 100 (Notable)
Faulkton	United States	Record high minimum temperature	22.8 C (73.0 F)	39 of 100 (Notable)
Ipswich	United States	Record high minimum temperature	22.2 C (72.0 F)	39 of 100 (Notable)
Dumas	United States	Record low minimum temperature	10.0 C (50.0 F)	39 of 100 (Notable)
Lake Mills Wwtp	United States	Record high minimum temperature	27.2 C (81.0 F)	39 of 100 (Notable)
Kookynie	Australia	Record daily precipitation	30.0 mm (1.2 in)	38 of 100 (Notable)
Progreso	Mexico	Record high minimum temperature	23.9 C (75.0 F)	38 of 100 (Notable)
Everglades	United States	Record high maximum temperature	36.1 C (97.0 F)	38 of 100 (Notable)
Grundy Ctr	United States	Record high minimum temperature	25.0 C (77.0 F)	38 of 100 (Notable)
Bland	United States	Record daily precipitation	42.2 mm (1.7 in)	38 of 100 (Notable)
Eagle Rvr	United States	Record daily precipitation	64.0 mm (2.5 in)	38 of 100 (Notable)
Findlay AP	United States	Record daily precipitation	53.6 mm (2.1 in)	38 of 100 (Notable)
Nanjing	China	Record daily precipitation	101.4 mm (4.0 in)	37 of 100 (Notable)

Counts by Type and Timescale

1,148 records

Records set or tied on 18 July 2011 by type: Highest daily maximum 175, Lowest daily maximum 104, Highest daily minimum 612, Lowest daily minimum 65, Heaviest daily rainfall 192.

Records on 18 July 2011 by type
Record type	Records
Highest daily maximum	175
Lowest daily maximum	104
Highest daily minimum	612
Lowest daily minimum	65
Heaviest daily rainfall	192
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 July 2011 by timescale: all-time 18, monthly 34, daily 1,096.

How Much Records Were Beaten By

755 broken records

Margins by which the 755 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 127.8. Ties are not counted.

Top 20 by Significance

18 July 2011

Top 20 records on 18 July 2011 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 July 2011	Biloxi, US	daily rain	222.3 mm (8.8 in)	127.8 mm (5.0 in)	98 years	79 of 100 (Major)
18 July 2011	Arcadia, US	daily rain	105.4 mm (4.1 in)	48.2 mm (1.9 in)	109 years	71 of 100 (Major)
18 July 2011	Yerilla, AU	daily rain	27.0 mm (1.1 in)	15.6 mm (0.6 in)	104 years	68 of 100 (Major)
18 July 2011	Tixtla (Dge), MX	all-time rain	145.3 mm (5.7 in)	35.3 mm (1.4 in)	34 years	64 of 100 (Major)
18 July 2011	Mierkenis_A, SE	daily rain	34.9 mm (1.4 in)	19.0 mm (0.7 in)	88 years	63 of 100 (Major)
18 July 2011	Zhigalovo, RU	daily rain	64.9 mm (2.6 in)	31.3 mm (1.2 in)	40 years	55 of 100 (Notable)
18 July 2011	Barcelona -Fabra Observatory, ES	daily rain	51.6 mm (2.0 in)	36.3 mm (1.4 in)	53 years	54 of 100 (Notable)
18 July 2011	Eufaula Wildlife Ref, US	daily rain	136.7 mm (5.4 in)	104.2 mm (4.1 in)	32 years	53 of 100 (Notable)
18 July 2011	Rest Lake, US	daily rain	124.5 mm (4.9 in)	88.9 mm (3.5 in)	14 years	53 of 100 (Notable)
18 July 2011	Orlinga, RU	daily rain	47.9 mm (1.9 in)	19.2 mm (0.8 in)	66 years	52 of 100 (Notable)
18 July 2011	Neillsville 3ESE, US	daily rain	64.3 mm (2.5 in)	22.4 mm (0.9 in)	89 years	52 of 100 (Notable)
18 July 2011	Yuinmery, AU	daily rain	30.2 mm (1.2 in)	18.5 mm (0.7 in)	37 years	51 of 100 (Notable)
18 July 2011	Altotonga, MX	daily high min	18.9 C (66.0 F)	5.0 C (9.0 F)	81 years	50 of 100 (Notable)
18 July 2011	Reedsburg Wwtp, US	monthly high min	26.1 C (79.0 F)	1.1 C (2.0 F)	93 years	50 of 100 (Notable)
18 July 2011	Echo Dam, US	all-time high min	21.1 C (70.0 F)	1.1 C (2.0 F)	63 years	49 of 100 (Notable)
18 July 2011	San Felipe, MX	daily rain	170.9 mm (6.7 in)	113.0 mm (4.4 in)	12 years	48 of 100 (Notable)
18 July 2011	Boogardie, AU	daily rain	33.8 mm (1.3 in)	15.0 mm (0.6 in)	37 years	46 of 100 (Notable)
18 July 2011	Madison 2SE, US	all-time high min	28.3 C (82.9 F)	2.7 C (4.9 F)	46 years	46 of 100 (Notable)
18 July 2011	Hopewell, US	daily rain	25.4 mm (1.0 in)	20.3 mm (0.8 in)	25 years	46 of 100 (Notable)
18 July 2011	Challa, AU	daily rain	31.4 mm (1.2 in)	14.4 mm (0.6 in)	37 years	45 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 2011

Records set or tied on this calendar date in each year from 1793 to 2011. 2011 had 1,148 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	920
2014	1,348
2015	746
2016	609
2017	426
2018	699
2019	548
2020	361
2021	674
2022	1,071
2023	867
2024	581
2025	779
2026	806

Download the Data

Data for records on 2011-07-18: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 20	732
20 to 40	13
40 to 60	4
60 to 80	1
80 to 100	2
100 to 120	2
120 to 140	1