Weather Records on 18 July 2009

1,757 weather records were set or tied worldwide on 18 July 2009. Highest significance: Sviland, NO.

Key Facts for 18 July 2009

On 18 July 2009, 1,757 weather records were set or tied at long-record stations worldwide.
481 were record highs and 1,118 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 26 monthly and 1,729 daily.
Sviland set a daily record precipitation of 81.5 mm (3.2 in) on 18 July 2009.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 454 records.

Record Map

1,757 stations

1,757 station records on 18 July 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 July 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sviland	Norway	Record daily precipitation	81.5 mm (3.2 in)	70 of 100 (Major)
Bakke	Norway	Record daily precipitation	58.2 mm (2.3 in)	68 of 100 (Major)
Aseral	Norway	Record daily precipitation	60.1 mm (2.4 in)	63 of 100 (Major)
Stavanger - Valand	Norway	Record daily precipitation	56.6 mm (2.2 in)	63 of 100 (Major)
Soyland I Gjesdal	Norway	Record daily precipitation	73.0 mm (2.9 in)	62 of 100 (Major)
Sola	Norway	Record daily precipitation	56.5 mm (2.2 in)	59 of 100 (Notable)
Leeming	United Kingdom	Record daily precipitation	51.1 mm (2.0 in)	59 of 100 (Notable)
Lista Fyr	Norway	Record daily precipitation	65.4 mm (2.6 in)	57 of 100 (Notable)
Egersund	Norway	Record daily precipitation	65.5 mm (2.6 in)	57 of 100 (Notable)
Sorve	Estonia	Record daily precipitation	56.9 mm (2.2 in)	56 of 100 (Notable)
Helland I Gjesdal	Norway	Record daily precipitation	74.0 mm (2.9 in)	56 of 100 (Notable)
Cresco 1 NE	United States	Record low maximum temperature	16.1 C (61.0 F)	53 of 100 (Notable)
Osage	United States	Record low maximum temperature	16.1 C (61.0 F)	53 of 100 (Notable)
Postmyr I Drangedal	Norway	Record daily precipitation	61.7 mm (2.4 in)	52 of 100 (Notable)
Hognestad	Norway	Record daily precipitation	57.5 mm (2.3 in)	52 of 100 (Notable)
Lysebotn	Norway	Record daily precipitation	47.5 mm (1.9 in)	52 of 100 (Notable)
Mason City	United States	Record low maximum temperature	16.7 C (62.1 F)	52 of 100 (Notable)
Northwood	United States	Record low maximum temperature	16.1 C (61.0 F)	52 of 100 (Notable)
Elizabethton	United States	Record low maximum temperature	22.2 C (72.0 F)	52 of 100 (Notable)
1 ENE Fairfield	United States	Record low maximum temperature	21.1 C (70.0 F)	51 of 100 (Notable)
Vandalia	United States	Record low maximum temperature	23.9 C (75.0 F)	51 of 100 (Notable)
Charles City	United States	Record low maximum temperature	18.9 C (66.0 F)	51 of 100 (Notable)
Newton	United States	Record low maximum temperature	19.4 C (66.9 F)	51 of 100 (Notable)
Mauston 1 SE	United States	Record low maximum temperature	17.2 C (63.0 F)	51 of 100 (Notable)
Prairie du Chien	United States	Record low maximum temperature	17.2 C (63.0 F)	51 of 100 (Notable)
Oltedal	Norway	Record daily precipitation	77.0 mm (3.0 in)	50 of 100 (Notable)
Segerstad	Sweden	Record daily precipitation	39.5 mm (1.6 in)	50 of 100 (Notable)
Belle Plaine	United States	Record low maximum temperature	18.3 C (64.9 F)	50 of 100 (Notable)
Elkader 6 SSW	United States	Record low maximum temperature	16.7 C (62.1 F)	50 of 100 (Notable)
Fayette	United States	Record low maximum temperature	16.1 C (61.0 F)	50 of 100 (Notable)
Hampton	United States	Record low maximum temperature	17.8 C (64.0 F)	50 of 100 (Notable)
St Peter	United States	Record low maximum temperature	18.9 C (66.0 F)	50 of 100 (Notable)
Elizabethton	United States	Record low minimum temperature	12.8 C (55.0 F)	50 of 100 (Notable)
Fedafjorden II	Norway	Record daily precipitation	58.0 mm (2.3 in)	49 of 100 (Notable)
Tonstad - Nettfed	Norway	Record daily precipitation	53.0 mm (2.1 in)	49 of 100 (Notable)
Aginskoe	Russia	Record daily precipitation	38.1 mm (1.5 in)	49 of 100 (Notable)
Norra_Mockleby	Sweden	Record daily precipitation	40.0 mm (1.6 in)	49 of 100 (Notable)
Palestine	United States	Record low maximum temperature	23.3 C (73.9 F)	49 of 100 (Notable)
Tuscola	United States	Record low maximum temperature	22.8 C (73.0 F)	49 of 100 (Notable)
Windsor	United States	Record low maximum temperature	22.2 C (72.0 F)	49 of 100 (Notable)
1 WSW Princeton	United States	Record low maximum temperature	22.2 C (72.0 F)	49 of 100 (Notable)
E Wareham	United States	Record daily precipitation	45.7 mm (1.8 in)	49 of 100 (Notable)
Lake City Exp Farm	United States	Record low maximum temperature	17.2 C (63.0 F)	49 of 100 (Notable)
Montague 4 NW	United States	Record low maximum temperature	19.4 C (66.9 F)	49 of 100 (Notable)
Zumbrota	United States	Record low maximum temperature	17.2 C (63.0 F)	49 of 100 (Notable)
Chilton	United States	Record low maximum temperature	18.3 C (64.9 F)	49 of 100 (Notable)
Oconomowoc Wwtp	United States	Record low maximum temperature	18.3 C (64.9 F)	49 of 100 (Notable)
Lexington Bluegrass AP	United States	Record low maximum temperature	20.6 C (69.1 F)	49 of 100 (Notable)
Decatur Wtp	United States	Record low maximum temperature	23.3 C (73.9 F)	48 of 100 (Notable)
Bloomfield	United States	Record low maximum temperature	21.1 C (70.0 F)	48 of 100 (Notable)
Carroll	United States	Record low maximum temperature	20.6 C (69.1 F)	48 of 100 (Notable)
Toledo 3N	United States	Record low maximum temperature	17.8 C (64.0 F)	48 of 100 (Notable)
Portage Wwtp	United States	Record low maximum temperature	17.8 C (64.0 F)	48 of 100 (Notable)
Stevens Pt	United States	Record low maximum temperature	16.7 C (62.1 F)	48 of 100 (Notable)
Carlinville	United States	Record low maximum temperature	23.9 C (75.0 F)	47 of 100 (Notable)
Bloomington Indiana UNIV	United States	Record low maximum temperature	23.3 C (73.9 F)	47 of 100 (Notable)
Algona	United States	Record low maximum temperature	18.3 C (64.9 F)	47 of 100 (Notable)
Decorah	United States	Record low maximum temperature	18.3 C (64.9 F)	47 of 100 (Notable)
Postville	United States	Record low maximum temperature	17.2 C (63.0 F)	47 of 100 (Notable)
Manhattan	United States	Record low minimum temperature	10.0 C (50.0 F)	47 of 100 (Notable)

Counts by Type and Timescale

1,757 records

Records set or tied on 18 July 2009 by type: Highest daily maximum 262, Lowest daily maximum 690, Highest daily minimum 219, Lowest daily minimum 428, Heaviest daily rainfall 158.

Records on 18 July 2009 by type
Record type	Records
Highest daily maximum	262
Lowest daily maximum	690
Highest daily minimum	219
Lowest daily minimum	428
Heaviest daily rainfall	158
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 July 2009 by timescale: all-time 2, monthly 26, daily 1,729.

How Much Records Were Beaten By

1,291 broken records

Margins by which the 1,291 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 60.0. Ties are not counted.

Top 20 by Significance

18 July 2009

Top 20 records on 18 July 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 July 2009	Sviland, NO	daily rain	81.5 mm (3.2 in)	54.5 mm (2.1 in)	68 years	70 of 100 (Major)
18 July 2009	Bakke, NO	daily rain	58.2 mm (2.3 in)	32.8 mm (1.3 in)	91 years	68 of 100 (Major)
18 July 2009	Aseral, NO	daily rain	60.1 mm (2.4 in)	23.4 mm (0.9 in)	100 years	63 of 100 (Major)
18 July 2009	Stavanger - Valand, NO	daily rain	56.6 mm (2.2 in)	35.8 mm (1.4 in)	56 years	63 of 100 (Major)
18 July 2009	Soyland I Gjesdal, NO	daily rain	73.0 mm (2.9 in)	44.2 mm (1.7 in)	42 years	62 of 100 (Major)
18 July 2009	Sola, NO	daily rain	56.5 mm (2.2 in)	26.8 mm (1.1 in)	56 years	59 of 100 (Notable)
18 July 2009	Leeming, GB	monthly rain	51.1 mm (2.0 in)	22.1 mm (0.9 in)	22 years	59 of 100 (Notable)
18 July 2009	Lista Fyr, NO	daily rain	65.4 mm (2.6 in)	47.7 mm (1.9 in)	42 years	57 of 100 (Notable)
18 July 2009	Egersund, NO	daily rain	65.5 mm (2.6 in)	40.5 mm (1.6 in)	42 years	57 of 100 (Notable)
18 July 2009	Sorve, EE	daily rain	56.9 mm (2.2 in)	31.7 mm (1.2 in)	20 years	56 of 100 (Notable)
18 July 2009	Helland I Gjesdal, NO	daily rain	74.0 mm (2.9 in)	53.8 mm (2.1 in)	42 years	56 of 100 (Notable)
18 July 2009	Cresco 1 NE, US	daily low max	16.1 C (61.0 F)	5.0 C (9.0 F)	112 years	53 of 100 (Notable)
18 July 2009	Osage, US	daily low max	16.1 C (61.0 F)	5.0 C (9.0 F)	107 years	53 of 100 (Notable)
18 July 2009	Postmyr I Drangedal, NO	daily rain	61.7 mm (2.4 in)	28.7 mm (1.1 in)	48 years	52 of 100 (Notable)
18 July 2009	Hognestad, NO	daily rain	57.5 mm (2.3 in)	39.5 mm (1.6 in)	26 years	52 of 100 (Notable)
18 July 2009	Lysebotn, NO	daily rain	47.5 mm (1.9 in)	11.0 mm (0.4 in)	103 years	52 of 100 (Notable)
18 July 2009	Mason City, US	daily low max	16.7 C (62.1 F)	5.0 C (9.0 F)	96 years	52 of 100 (Notable)
18 July 2009	Northwood, US	daily low max	16.1 C (61.0 F)	5.6 C (10.1 F)	94 years	52 of 100 (Notable)
18 July 2009	Elizabethton, US	daily low max	22.2 C (72.0 F)	3.4 C (6.1 F)	111 years	52 of 100 (Notable)
18 July 2009	1 ENE Fairfield, US	daily low max	21.1 C (70.0 F)	3.9 C (7.0 F)	108 years	51 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 2009

Records set or tied on this calendar date in each year from 1793 to 2009. 2009 had 1,757 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 2009-07-18: 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 10	1,211
10 to 20	39
20 to 30	23
30 to 40	10
40 to 50	5
50 to 60	3