Weather Records on 21 July 2010

1,148 weather records were set or tied worldwide on 21 July 2010. Highest significance: Mondy, RU.

Key Facts for 21 July 2010

On 21 July 2010, 1,148 weather records were set or tied at long-record stations worldwide.
666 were record highs and 197 were record lows, counting maximum and minimum temperature.
By timescale, 11 were all-time records, 47 monthly and 1,090 daily.
Mondy set an all-time record daily precipitation of 104.1 mm (4.1 in) on 21 July 2010.
Across 159 earlier years (1794 to 2026) the same calendar date averaged 462 records.

Record Map

1,148 stations

1,148 station records on 21 July 2010 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 July 2010: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mondy	Russia	Record daily precipitation	104.1 mm (4.1 in)	79 of 100 (Major)
Briksdal	Norway	Record daily precipitation	66.2 mm (2.6 in)	73 of 100 (Major)
Flemingsburg 2 N	United States	Record daily precipitation	109.2 mm (4.3 in)	73 of 100 (Major)
Dinosaur Nm-Quarry Area	United States	Record daily precipitation	25.9 mm (1.0 in)	71 of 100 (Major)
Grayson Lake	United States	Record daily precipitation	157.7 mm (6.2 in)	68 of 100 (Major)
Sandane	Norway	Record daily precipitation	54.8 mm (2.2 in)	65 of 100 (Major)
Akron	United States	Record daily precipitation	109.2 mm (4.3 in)	61 of 100 (Major)
Sogndal - Selseng	Norway	Record daily precipitation	62.4 mm (2.5 in)	60 of 100 (Major)
Ensenada 1 W	Puerto Rico [United States]	Record daily precipitation	137.2 mm (5.4 in)	60 of 100 (Major)
Milford 4 NW	United States	Record daily precipitation	99.1 mm (3.9 in)	58 of 100 (Notable)
Norddal	Norway	Record daily precipitation	44.8 mm (1.8 in)	57 of 100 (Notable)
Alfoten II	Norway	Record daily precipitation	56.0 mm (2.2 in)	56 of 100 (Notable)
Boverdal	Norway	Record daily precipitation	27.0 mm (1.1 in)	55 of 100 (Notable)
Camp Crook	United States	Record daily precipitation	56.6 mm (2.2 in)	55 of 100 (Notable)
Saverton L&D 22	United States	Record daily precipitation	104.1 mm (4.1 in)	52 of 100 (Notable)
Lavik	Norway	Record daily precipitation	60.8 mm (2.4 in)	51 of 100 (Notable)
Myklebust I Breim	Norway	Record daily precipitation	60.3 mm (2.4 in)	51 of 100 (Notable)
Tahquamenon Falls Sp	United States	Record daily precipitation	84.8 mm (3.3 in)	50 of 100 (Notable)
Buckhorn	United States	Record daily precipitation	50.3 mm (2.0 in)	50 of 100 (Notable)
Rochester Gtr Intl	United States	Record daily precipitation	48.0 mm (1.9 in)	50 of 100 (Notable)
Eksingedal	Norway	Record daily precipitation	52.1 mm (2.1 in)	49 of 100 (Notable)
Hafslo	Norway	Record daily precipitation	40.2 mm (1.6 in)	49 of 100 (Notable)
Ortnevik	Norway	Record daily precipitation	47.1 mm (1.9 in)	48 of 100 (Notable)
Hawarden	United States	Record daily precipitation	116.1 mm (4.6 in)	48 of 100 (Notable)
Wayne 2	United States	Record daily precipitation	97.5 mm (3.8 in)	48 of 100 (Notable)
Magueyes Is	Puerto Rico [United States]	Record daily precipitation	72.4 mm (2.9 in)	47 of 100 (Notable)
Rock Springs	United States	Record daily precipitation	40.6 mm (1.6 in)	47 of 100 (Notable)
Opaeula 870	United States	Record low minimum temperature	11.1 C (52.0 F)	47 of 100 (Notable)
Gullbra	Norway	Record daily precipitation	45.5 mm (1.8 in)	46 of 100 (Notable)
Hornindal	Norway	Record daily precipitation	63.5 mm (2.5 in)	46 of 100 (Notable)
Gronning	Norway	Record daily precipitation	36.4 mm (1.4 in)	46 of 100 (Notable)
Uppsala_Aut	Sweden	Record high minimum temperature	19.3 C (66.7 F)	46 of 100 (Notable)
Miltonvale	United States	Record daily precipitation	139.7 mm (5.5 in)	46 of 100 (Notable)
Madison 3NNW	United States	Record daily precipitation	67.3 mm (2.6 in)	46 of 100 (Notable)
Tarbes - Ossun	France	Record daily precipitation	40.0 mm (1.6 in)	45 of 100 (Notable)
Taylorville 2SE	United States	Record daily precipitation	40.6 mm (1.6 in)	43 of 100 (Notable)
Wellston Tippy Dam	United States	Record daily precipitation	38.6 mm (1.5 in)	43 of 100 (Notable)
Forse	Sweden	Record high minimum temperature	15.7 C (60.3 F)	42 of 100 (Notable)
Aberporth	United Kingdom	Record daily precipitation	34.0 mm (1.3 in)	42 of 100 (Notable)
Rocky Ford 2 SE	United States	Record daily precipitation	49.8 mm (2.0 in)	42 of 100 (Notable)
Lewistown 11 SSE	United States	Record daily precipitation	26.7 mm (1.1 in)	42 of 100 (Notable)
Skara 1	Sweden	Record high minimum temperature	16.3 C (61.3 F)	41 of 100 (Notable)
Chicapa de Castro	Mexico	Record low maximum temperature	22.8 C (73.0 F)	40 of 100 (Notable)
Botnen I Forde	Norway	Record daily precipitation	56.9 mm (2.2 in)	40 of 100 (Notable)
Trubcevsk	Russia	Record high maximum temperature	35.4 C (95.7 F)	40 of 100 (Notable)
Griggsville	United States	Record daily precipitation	50.8 mm (2.0 in)	40 of 100 (Notable)
Chilo Meldahl Locks & Dam	United States	Record daily precipitation	67.8 mm (2.7 in)	40 of 100 (Notable)
Quiriego (Smn)	Mexico	Record high minimum temperature	28.9 C (84.0 F)	39 of 100 (Notable)
Guayama 1SW	Puerto Rico [United States]	Record low maximum temperature	28.3 C (82.9 F)	39 of 100 (Notable)
Omsk	Russia	Record low minimum temperature	4.8 C (40.6 F)	39 of 100 (Notable)
Krasnaja Poljana	Russia	Record daily precipitation	44.7 mm (1.8 in)	39 of 100 (Notable)
Santuck	United States	Record high minimum temperature	25.0 C (77.0 F)	39 of 100 (Notable)
Vik I Sogn III	Norway	Record daily precipitation	41.7 mm (1.6 in)	38 of 100 (Notable)
Ytre Solund	Norway	Record daily precipitation	40.8 mm (1.6 in)	38 of 100 (Notable)
Orskog	Norway	Record daily precipitation	37.4 mm (1.5 in)	38 of 100 (Notable)
Union 8 S	United States	Record high minimum temperature	25.6 C (78.1 F)	38 of 100 (Notable)
El Tapiro	Mexico	Record daily precipitation	63.0 mm (2.5 in)	37 of 100 (Notable)
Boca del Cerro	Mexico	Record daily precipitation	109.0 mm (4.3 in)	37 of 100 (Notable)
Bulken	Norway	Record daily precipitation	35.8 mm (1.4 in)	37 of 100 (Notable)
Veitastrond	Norway	Record daily precipitation	53.6 mm (2.1 in)	37 of 100 (Notable)

Counts by Type and Timescale

1,148 records

Records set or tied on 21 July 2010 by type: Highest daily maximum 184, Lowest daily maximum 121, Highest daily minimum 482, Lowest daily minimum 76, Heaviest daily rainfall 285.

Records on 21 July 2010 by type
Record type	Records
Highest daily maximum	184
Lowest daily maximum	121
Highest daily minimum	482
Lowest daily minimum	76
Heaviest daily rainfall	285
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 July 2010 by timescale: all-time 11, monthly 47, daily 1,090.

How Much Records Were Beaten By

812 broken records

Margins by which the 812 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 83.4. Ties are not counted.

Top 20 by Significance

21 July 2010

Top 20 records on 21 July 2010 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 2010	Mondy, RU	all-time rain	104.1 mm (4.1 in)	24.6 mm (1.0 in)	60 years	79 of 100 (Major)
21 July 2010	Briksdal, NO	monthly rain	66.2 mm (2.6 in)	16.7 mm (0.7 in)	88 years	73 of 100 (Major)
21 July 2010	Flemingsburg 2 N, US	daily rain	109.2 mm (4.3 in)	68.6 mm (2.7 in)	84 years	73 of 100 (Major)
21 July 2010	Dinosaur Nm-Quarry Area, US	daily rain	25.9 mm (1.0 in)	21.1 mm (0.8 in)	88 years	71 of 100 (Major)
21 July 2010	Grayson Lake, US	all-time rain	157.7 mm (6.2 in)	48.0 mm (1.9 in)	24 years	68 of 100 (Major)
21 July 2010	Sandane, NO	monthly rain	54.8 mm (2.2 in)	24.8 mm (1.0 in)	35 years	65 of 100 (Major)
21 July 2010	Akron, US	monthly rain	109.2 mm (4.3 in)	23.6 mm (0.9 in)	81 years	61 of 100 (Major)
21 July 2010	Sogndal - Selseng, NO	monthly rain	62.4 mm (2.5 in)	9.0 mm (0.35 in)	88 years	60 of 100 (Major)
21 July 2010	Ensenada 1 W, PR	daily rain	137.2 mm (5.4 in)	83.4 mm (3.3 in)	52 years	60 of 100 (Major)
21 July 2010	Milford 4 NW, US	daily rain	99.1 mm (3.9 in)	62.0 mm (2.4 in)	32 years	58 of 100 (Notable)
21 July 2010	Norddal, NO	monthly rain	44.8 mm (1.8 in)	9.4 mm (0.37 in)	57 years	57 of 100 (Notable)
21 July 2010	Alfoten II, NO	daily rain	56.0 mm (2.2 in)	28.8 mm (1.1 in)	36 years	56 of 100 (Notable)
21 July 2010	Boverdal, NO	daily rain	27.0 mm (1.1 in)	16.5 mm (0.6 in)	17 years	55 of 100 (Notable)
21 July 2010	Camp Crook, US	daily rain	56.6 mm (2.2 in)	39.8 mm (1.6 in)	17 years	55 of 100 (Notable)
21 July 2010	Saverton L&D 22, US	daily rain	104.1 mm (4.1 in)	46.4 mm (1.8 in)	60 years	52 of 100 (Notable)
21 July 2010	Lavik, NO	daily rain	60.8 mm (2.4 in)	33.1 mm (1.3 in)	36 years	51 of 100 (Notable)
21 July 2010	Myklebust I Breim, NO	monthly rain	60.3 mm (2.4 in)	6.1 mm (0.24 in)	74 years	51 of 100 (Notable)
21 July 2010	Tahquamenon Falls Sp, US	monthly rain	84.8 mm (3.3 in)	30.2 mm (1.2 in)	23 years	50 of 100 (Notable)
21 July 2010	Buckhorn, US	daily rain	50.3 mm (2.0 in)	36.6 mm (1.4 in)	40 years	50 of 100 (Notable)
21 July 2010	Rochester Gtr Intl, US	daily rain	48.0 mm (1.9 in)	23.4 mm (0.9 in)	67 years	50 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

1794 to 2010

Records set or tied on this calendar date in each year from 1794 to 2010. 2010 had 1,148 records.

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

Records on 07-21 in each year
Year	Records
1794	1
1795	1
1796	1
1797	1
1813	2
1832	2
1837	1
1839	1
1843	1
1844	2
1854	1
1859	3
1865	3
1868	3
1872	1
1876	1
1879	2
1880	1
1881	1
1884	1
1885	1
1886	2
1888	2
1889	3
1890	2
1892	3
1893	3
1894	3
1895	1
1896	3
1897	4
1898	7
1899	2
1900	6
1901	13
1902	12
1903	10
1904	8
1905	13
1906	13
1907	12
1908	25
1909	18
1910	12
1911	37
1912	52
1913	41
1914	48
1915	81
1916	72
1917	136
1918	130
1919	51
1920	33
1921	55
1922	48
1923	132
1924	286
1925	202
1926	401
1927	191
1928	205
1929	360
1930	521
1931	549
1932	322
1933	208
1934	965
1935	236
1936	322
1937	253
1938	638
1939	415
1940	318
1941	226
1942	318
1943	253
1944	716
1945	300
1946	398
1947	795
1948	403
1949	603
1950	662
1951	427
1952	657
1953	351
1954	656
1955	582
1956	490
1957	447
1958	531
1959	940
1960	651
1961	388
1962	263
1963	470
1964	457
1965	748
1966	626
1967	313
1968	334
1969	636
1970	1,241
1971	475
1972	1,046
1973	871
1974	536
1975	380
1976	477
1977	708
1978	1,155
1979	964
1980	926
1981	1,352
1982	588
1983	1,234
1984	764
1985	554
1986	791
1987	1,025
1988	1,015
1989	973
1990	914
1991	812
1992	1,562
1993	866
1994	773
1995	1,247
1996	1,141
1997	849
1998	1,674
1999	814
2000	1,230
2001	889
2002	990
2003	1,250
2004	694
2005	1,420
2006	1,479
2007	1,145
2008	989
2009	1,306
2010	1,148
2011	1,414
2012	815
2013	526
2014	762
2015	704
2016	645
2017	433
2018	942
2019	755
2020	363
2021	574
2022	866
2023	816
2024	873
2025	881
2026	874

Download the Data

Data for records on 2010-07-21: 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 2026-10-13 (13 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	754
20 to 40	49
40 to 60	4
60 to 80	4
80 to 100	1