Weather Records on 20 July 2010

1,154 weather records were set or tied worldwide on 20 July 2010. Highest significance: Milan, US.

Key Facts for 20 July 2010

On 20 July 2010, 1,154 weather records were set or tied at long-record stations worldwide.
643 were record highs and 199 were record lows, counting maximum and minimum temperature.
By timescale, 11 were all-time records, 26 monthly and 1,117 daily.
Milan set a daily record precipitation of 118.1 mm (4.6 in) on 20 July 2010.
Across 161 earlier years (1809 to 2026) the same calendar date averaged 455 records.

Record Map

1,154 stations

1,154 station records on 20 July 2010 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 July 2010: highest significance records shown on the map
Station	Country	Type	Value	Significance
Milan	United States	Record daily precipitation	118.1 mm (4.6 in)	71 of 100 (Major)
Rushville	United States	Record daily precipitation	96.8 mm (3.8 in)	68 of 100 (Major)
Edina	United States	Record daily precipitation	132.6 mm (5.2 in)	68 of 100 (Major)
Chariton 1 E	United States	Record daily precipitation	121.9 mm (4.8 in)	64 of 100 (Major)
Kirksville Rgnl AP	United States	Record daily precipitation	118.9 mm (4.7 in)	64 of 100 (Major)
Nenjiang	China	Record daily precipitation	93.5 mm (3.7 in)	63 of 100 (Major)
Shelbina	United States	Record daily precipitation	137.2 mm (5.4 in)	63 of 100 (Major)
Altotonga	Mexico	Record daily precipitation	79.0 mm (3.1 in)	62 of 100 (Major)
Steffenville	United States	Record daily precipitation	101.9 mm (4.0 in)	62 of 100 (Major)
Kirksville	United States	Record daily precipitation	181.4 mm (7.1 in)	61 of 100 (Major)
Unionville	United States	Record daily precipitation	168.9 mm (6.6 in)	61 of 100 (Major)
Pamplona (Observatorio)	Spain	Record daily precipitation	54.8 mm (2.2 in)	59 of 100 (Notable)
Santiago Chivela	Mexico	Record daily precipitation	183.9 mm (7.2 in)	57 of 100 (Notable)
Prilep	Macedonia	Record daily precipitation	27.6 mm (1.1 in)	55 of 100 (Notable)
Allerton	United States	Record daily precipitation	108.0 mm (4.3 in)	55 of 100 (Notable)
Palizada	Mexico	Record daily precipitation	95.0 mm (3.7 in)	53 of 100 (Notable)
Jonuta	Mexico	Record daily precipitation	78.0 mm (3.1 in)	53 of 100 (Notable)
Petersburg 3SSW	United States	Record daily precipitation	74.7 mm (2.9 in)	53 of 100 (Notable)
Quemado	United States	Record daily precipitation	39.4 mm (1.6 in)	53 of 100 (Notable)
McNary 2N	United States	Record daily precipitation	35.6 mm (1.4 in)	52 of 100 (Notable)
Paraiso	Puerto Rico [United States]	Record daily precipitation	101.6 mm (4.0 in)	50 of 100 (Notable)
Rathbun Dam	United States	Record daily precipitation	147.3 mm (5.8 in)	50 of 100 (Notable)
Juncos 1 SE	Puerto Rico [United States]	Record daily precipitation	81.3 mm (3.2 in)	49 of 100 (Notable)
Trenton	United States	Record daily precipitation	33.0 mm (1.3 in)	49 of 100 (Notable)
Raton Muni Crews Fld AP	United States	Record daily precipitation	59.2 mm (2.3 in)	49 of 100 (Notable)
Dyce	United Kingdom	Record daily precipitation	26.0 mm (1.0 in)	46 of 100 (Notable)
Moweaqua 2S	United States	Record daily precipitation	85.1 mm (3.4 in)	46 of 100 (Notable)
Natchitoches	United States	Record daily precipitation	52.8 mm (2.1 in)	46 of 100 (Notable)
Canton L&D 20	United States	Record daily precipitation	81.3 mm (3.2 in)	46 of 100 (Notable)
San Jose Tenango II	Mexico	Record daily precipitation	220.0 mm (8.7 in)	45 of 100 (Notable)
Detroit Willow Run AP	United States	Record daily precipitation	54.4 mm (2.1 in)	45 of 100 (Notable)
Zhigansk	Russia	Record daily precipitation	33.7 mm (1.3 in)	44 of 100 (Notable)
Havana	United States	Record daily precipitation	76.2 mm (3.0 in)	44 of 100 (Notable)
Santiago Tlazala	Mexico	Record daily precipitation	50.8 mm (2.0 in)	43 of 100 (Notable)
Tenosique (Smn)	Mexico	Record daily precipitation	67.8 mm (2.7 in)	43 of 100 (Notable)
Payson	United States	Record daily precipitation	86.9 mm (3.4 in)	43 of 100 (Notable)
Downing	United States	Record daily precipitation	75.4 mm (3.0 in)	43 of 100 (Notable)
Manitowoc	United States	Record daily precipitation	68.6 mm (2.7 in)	43 of 100 (Notable)
Jaral de Berrios	Mexico	Record high maximum temperature	35.0 C (95.0 F)	42 of 100 (Notable)
Velikie Luki	Russia	Record high minimum temperature	18.7 C (65.7 F)	42 of 100 (Notable)
Kursk	Russia	Record high minimum temperature	23.6 C (74.5 F)	42 of 100 (Notable)
Titusville	United States	Record high minimum temperature	28.3 C (82.9 F)	42 of 100 (Notable)
Taylorville 2SE	United States	Record daily precipitation	71.1 mm (2.8 in)	42 of 100 (Notable)
Campeche (Dge)	Mexico	Record daily precipitation	84.8 mm (3.3 in)	41 of 100 (Notable)
Bentley	United States	Record daily precipitation	82.0 mm (3.2 in)	41 of 100 (Notable)
Angleton 2 W	United States	Record high minimum temperature	26.1 C (79.0 F)	41 of 100 (Notable)
Calacoaya	Mexico	Record daily precipitation	44.5 mm (1.8 in)	40 of 100 (Notable)
San Pedro	Mexico	Record daily precipitation	54.9 mm (2.2 in)	40 of 100 (Notable)
Jubilejnaja	Russia	Record high minimum temperature	19.7 C (67.5 F)	40 of 100 (Notable)
Surgut	Russia	Record low minimum temperature	3.5 C (38.3 F)	40 of 100 (Notable)
Clayton Muni Air Pk	United States	Record high minimum temperature	22.2 C (72.0 F)	40 of 100 (Notable)
Oxchuc	Mexico	Record daily precipitation	67.8 mm (2.7 in)	39 of 100 (Notable)
San Lucas Arroyo Paloma	Mexico	Record high maximum temperature	37.8 C (100.0 F)	39 of 100 (Notable)
San Miguel Suchixtepec	Mexico	Record daily precipitation	61.7 mm (2.4 in)	39 of 100 (Notable)
Leuchars	United Kingdom	Record daily precipitation	28.4 mm (1.1 in)	39 of 100 (Notable)
Lawrenceville 2WSW	United States	Record daily precipitation	81.3 mm (3.2 in)	39 of 100 (Notable)
Okmulgee Wtr Wks	United States	Record high minimum temperature	25.6 C (78.1 F)	39 of 100 (Notable)
San Miguel Ejutla	Mexico	Record high minimum temperature	18.9 C (66.0 F)	38 of 100 (Notable)
Felipe Carrillo Puerto (Dge)	Mexico	Record daily precipitation	74.4 mm (2.9 in)	38 of 100 (Notable)
Guaquitepec	Mexico	Record daily precipitation	59.9 mm (2.4 in)	37 of 100 (Notable)

Counts by Type and Timescale

1,154 records

Records set or tied on 20 July 2010 by type: Highest daily maximum 173, Lowest daily maximum 100, Highest daily minimum 470, Lowest daily minimum 99, Heaviest daily rainfall 312.

Records on 20 July 2010 by type
Record type	Records
Highest daily maximum	173
Lowest daily maximum	100
Highest daily minimum	470
Lowest daily minimum	99
Heaviest daily rainfall	312
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 July 2010 by timescale: all-time 11, monthly 26, daily 1,117.

How Much Records Were Beaten By

790 broken records

Margins by which the 790 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 134.2. Ties are not counted.

Top 20 by Significance

20 July 2010

Top 20 records on 20 July 2010 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 July 2010	Milan, US	daily rain	118.1 mm (4.6 in)	86.6 mm (3.4 in)	79 years	71 of 100 (Major)
20 July 2010	Rushville, US	daily rain	96.8 mm (3.8 in)	74.4 mm (2.9 in)	60 years	68 of 100 (Major)
20 July 2010	Edina, US	daily rain	132.6 mm (5.2 in)	104.7 mm (4.1 in)	60 years	68 of 100 (Major)
20 July 2010	Chariton 1 E, US	daily rain	121.9 mm (4.8 in)	63.0 mm (2.5 in)	60 years	64 of 100 (Major)
20 July 2010	Kirksville Rgnl AP, US	daily rain	118.9 mm (4.7 in)	76.0 mm (3.0 in)	60 years	64 of 100 (Major)
20 July 2010	Nenjiang, CN	daily rain	93.5 mm (3.7 in)	70.8 mm (2.8 in)	59 years	63 of 100 (Major)
20 July 2010	Shelbina, US	daily rain	137.2 mm (5.4 in)	72.4 mm (2.9 in)	52 years	63 of 100 (Major)
20 July 2010	Altotonga, MX	daily rain	79.0 mm (3.1 in)	48.0 mm (1.9 in)	47 years	62 of 100 (Major)
20 July 2010	Steffenville, US	daily rain	101.9 mm (4.0 in)	65.6 mm (2.6 in)	40 years	62 of 100 (Major)
20 July 2010	Kirksville, US	daily rain	181.4 mm (7.1 in)	134.2 mm (5.3 in)	36 years	61 of 100 (Major)
20 July 2010	Unionville, US	daily rain	168.9 mm (6.6 in)	122.9 mm (4.8 in)	36 years	61 of 100 (Major)
20 July 2010	Pamplona (Observatorio), ES	daily rain	54.8 mm (2.2 in)	51.1 mm (2.0 in)	48 years	59 of 100 (Notable)
20 July 2010	Santiago Chivela, MX	daily rain	183.9 mm (7.2 in)	105.2 mm (4.1 in)	36 years	57 of 100 (Notable)
20 July 2010	Prilep, MK	daily rain	27.6 mm (1.1 in)	23.8 mm (0.9 in)	52 years	55 of 100 (Notable)
20 July 2010	Allerton, US	daily rain	108.0 mm (4.3 in)	49.1 mm (1.9 in)	60 years	55 of 100 (Notable)
20 July 2010	Palizada, MX	daily rain	95.0 mm (3.7 in)	54.9 mm (2.2 in)	24 years	53 of 100 (Notable)
20 July 2010	Jonuta, MX	daily rain	78.0 mm (3.1 in)	47.5 mm (1.9 in)	45 years	53 of 100 (Notable)
20 July 2010	Petersburg 3SSW, US	daily rain	74.7 mm (2.9 in)	46.3 mm (1.8 in)	56 years	53 of 100 (Notable)
20 July 2010	Quemado, US	daily rain	39.4 mm (1.6 in)	24.9 mm (1.0 in)	27 years	53 of 100 (Notable)
20 July 2010	McNary 2N, US	daily rain	35.6 mm (1.4 in)	19.1 mm (0.8 in)	59 years	52 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

1809 to 2010

Records set or tied on this calendar date in each year from 1809 to 2010. 2010 had 1,154 records.

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

Records on 07-20 in each year
Year	Records
1809	1
1810	1
1811	2
1832	2
1844	2
1850	1
1859	2
1863	1
1865	4
1866	1
1867	1
1868	1
1870	1
1872	1
1874	2
1876	1
1877	2
1879	3
1880	1
1881	2
1882	1
1883	2
1885	1
1886	2
1887	1
1888	1
1889	2
1890	5
1892	7
1893	1
1894	1
1895	1
1897	4
1898	2
1899	4
1900	9
1901	3
1902	13
1903	6
1904	10
1905	6
1906	8
1907	12
1908	31
1909	6
1910	27
1911	12
1912	33
1913	28
1914	20
1915	163
1916	117
1917	57
1918	53
1919	40
1920	16
1921	55
1922	52
1923	173
1924	112
1925	125
1926	411
1927	106
1928	366
1929	480
1930	598
1931	362
1932	338
1933	201
1934	857
1935	386
1936	358
1937	213
1938	392
1939	336
1940	325
1941	270
1942	609
1943	326
1944	470
1945	278
1946	482
1947	635
1948	385
1949	807
1950	563
1951	448
1952	488
1953	316
1954	512
1955	377
1956	545
1957	351
1958	536
1959	605
1960	758
1961	338
1962	327
1963	457
1964	416
1965	1,110
1966	469
1967	455
1968	389
1969	649
1970	890
1971	619
1972	1,062
1973	804
1974	489
1975	470
1976	580
1977	899
1978	663
1979	1,249
1980	925
1981	1,048
1982	580
1983	1,117
1984	799
1985	604
1986	848
1987	1,156
1988	1,103
1989	1,183
1990	724
1991	1,024
1992	1,137
1993	901
1994	611
1995	961
1996	1,365
1997	903
1998	1,682
1999	815
2000	1,393
2001	755
2002	986
2003	1,313
2004	978
2005	1,266
2006	1,487
2007	1,124
2008	663
2009	1,533
2010	1,154
2011	1,339
2012	817
2013	850
2014	1,000
2015	812
2016	744
2017	398
2018	930
2019	867
2020	524
2021	683
2022	1,108
2023	812
2024	737
2025	680
2026	863

Download the Data

Data for records on 2010-07-20: 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	727
20 to 40	34
40 to 60	15
60 to 80	8
80 to 100	1
100 to 120	3
120 to 140	2