Weather Records on 21 August 2001

797 weather records were set or tied worldwide on 21 August 2001. Highest significance: Nicolas Bravo KM. 71, MX.

Key Facts for 21 August 2001

On 21 August 2001, 797 weather records were set or tied at long-record stations worldwide.
511 were record highs and 172 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 42 monthly and 755 daily.
Nicolas Bravo KM. 71 set a daily record precipitation of 132.1 mm (5.2 in) on 21 August 2001.
Across 165 earlier years (1800 to 2026) the same calendar date averaged 448 records.

Record Map

797 stations

797 station records on 21 August 2001 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 August 2001: highest significance records shown on the map
Station	Country	Type	Value	Significance
Nicolas Bravo KM. 71	Mexico	Record daily precipitation	132.1 mm (5.2 in)	56 of 100 (Notable)
Kansk	Russia	Record daily precipitation	94.0 mm (3.7 in)	56 of 100 (Notable)
Chetumal (Dge)	Mexico	Record daily precipitation	212.1 mm (8.4 in)	55 of 100 (Notable)
Makaweli 965	United States	Record low maximum temperature	26.7 C (80.1 F)	54 of 100 (Notable)
Muren	Mongolia	Record daily precipitation	44.2 mm (1.7 in)	50 of 100 (Notable)
Sredhekolymsk	Russia	Record daily precipitation	34.2 mm (1.3 in)	47 of 100 (Notable)
Guanacevi (Smn)	Mexico	Record low minimum temperature	5.6 C (42.1 F)	46 of 100 (Notable)
X-Pichil	Mexico	Record low minimum temperature	15.6 C (60.1 F)	46 of 100 (Notable)
Flaming Gorge	United States	Record daily precipitation	27.2 mm (1.1 in)	45 of 100 (Notable)
Grays Rvr Hatchery	United States	Record daily precipitation	51.6 mm (2.0 in)	45 of 100 (Notable)
Tarwin Lower (Riverside)	Australia	Record daily precipitation	29.6 mm (1.2 in)	43 of 100 (Notable)
Tonala (Smn)	Mexico	Record high minimum temperature	30.6 C (87.1 F)	43 of 100 (Notable)
Pico del Este	Puerto Rico [United States]	Record low minimum temperature	13.9 C (57.0 F)	43 of 100 (Notable)
Keflavik	Iceland	Record daily precipitation	48.8 mm (1.9 in)	42 of 100 (Notable)
Quillayute AP	United States	Record daily precipitation	67.8 mm (2.7 in)	41 of 100 (Notable)
Olsens Bridge (Morwell River P	Australia	Record daily precipitation	54.0 mm (2.1 in)	40 of 100 (Notable)
Pixoyal (Smn)	Mexico	Record daily precipitation	84.6 mm (3.3 in)	40 of 100 (Notable)
Dudinka	Russia	Record high minimum temperature	16.7 C (62.1 F)	40 of 100 (Notable)
Clifton	United States	Record low minimum temperature	13.9 C (57.0 F)	40 of 100 (Notable)
Astoria AP (Port of)	United States	Record daily precipitation	27.7 mm (1.1 in)	40 of 100 (Notable)
Sewanee	United States	Record low minimum temperature	13.3 C (55.9 F)	39 of 100 (Notable)
Buffalo Bill Dam	United States	Record high minimum temperature	20.0 C (68.0 F)	39 of 100 (Notable)
Gillette 3SE	United States	Record high minimum temperature	18.9 C (66.0 F)	38 of 100 (Notable)
Kadoka	United States	Record high minimum temperature	22.2 C (72.0 F)	37 of 100 (Notable)
Philippi	United States	Record low maximum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
Anchorage Merrill Fld	United States	Record high maximum temperature	23.9 C (75.0 F)	37 of 100 (Notable)
Bolaos	Mexico	Record daily precipitation	45.2 mm (1.8 in)	36 of 100 (Notable)
Wonthaggi	Australia	Record daily precipitation	41.2 mm (1.6 in)	35 of 100 (Notable)
Temascalcingo	Mexico	Record high maximum temperature	28.9 C (84.0 F)	35 of 100 (Notable)
Holly	United States	Record high maximum temperature	40.0 C (104.0 F)	35 of 100 (Notable)
Elizabethtown	United States	Record daily precipitation	73.7 mm (2.9 in)	35 of 100 (Notable)
Nilsia Pieksa	Finland	Record daily precipitation	34.7 mm (1.4 in)	34 of 100 (Routine)
Blythe	United States	Record low minimum temperature	14.4 C (57.9 F)	34 of 100 (Routine)
Matehuala (Smn)	Mexico	Record high minimum temperature	18.9 C (66.0 F)	33 of 100 (Routine)
Klaipeda	Lithuania	Record high minimum temperature	19.3 C (66.7 F)	32 of 100 (Routine)
Huautla	Mexico	Record low minimum temperature	10.6 C (51.1 F)	32 of 100 (Routine)
Cedral	Mexico	Record high minimum temperature	16.7 C (62.1 F)	32 of 100 (Routine)
Putnam Lake	United States	Record daily precipitation	99.1 mm (3.9 in)	32 of 100 (Routine)
Tupper Lake Sunmount	United States	Record daily precipitation	32.8 mm (1.3 in)	32 of 100 (Routine)
Concordia ASOS	United States	Record high maximum temperature	40.0 C (104.0 F)	32 of 100 (Routine)
Nagoya	Japan	Record daily precipitation	73.2 mm (2.9 in)	31 of 100 (Routine)
Santa Maria del Rio (Dge)	Mexico	Record high maximum temperature	35.6 C (96.1 F)	31 of 100 (Routine)
Tamarindo	Mexico	Record low minimum temperature	18.3 C (64.9 F)	31 of 100 (Routine)
Camp Hill 2NW	United States	Record low minimum temperature	12.2 C (54.0 F)	31 of 100 (Routine)
Yap Island WSO AP	Federated States of Micronesia	Record low maximum temperature	26.7 C (80.1 F)	30 of 100 (Routine)
Murotomisaki	Japan	Record daily precipitation	124.0 mm (4.9 in)	30 of 100 (Routine)
Atyrau	Kazakhstan	Record high minimum temperature	23.2 C (73.8 F)	30 of 100 (Routine)
Santa Catarina Sur	Mexico	Record low maximum temperature	25.6 C (78.1 F)	30 of 100 (Routine)
Pustunich	Mexico	Record low maximum temperature	26.1 C (79.0 F)	30 of 100 (Routine)
Cihuatlan (Dge)	Mexico	Record high maximum temperature	38.3 C (100.9 F)	30 of 100 (Routine)
Cointzio	Mexico	Record high maximum temperature	30.0 C (86.0 F)	30 of 100 (Routine)
Zacapu (Smn)	Mexico	Record high maximum temperature	30.0 C (86.0 F)	30 of 100 (Routine)
San Fernando	Mexico	Record high minimum temperature	25.6 C (78.1 F)	30 of 100 (Routine)
Lumpkin 2 SE	United States	Record low minimum temperature	14.4 C (57.9 F)	30 of 100 (Routine)
Gulkana AP	United States	Record high minimum temperature	11.7 C (53.1 F)	30 of 100 (Routine)
Valdez WSO	United States	Record high maximum temperature	25.6 C (78.1 F)	30 of 100 (Routine)
Shionomisaki	Japan	Record daily precipitation	290.1 mm (11.4 in)	29 of 100 (Routine)
Presa Madero	Mexico	Record high maximum temperature	27.8 C (82.0 F)	29 of 100 (Routine)
Caon Fernandez	Mexico	Record daily precipitation	28.4 mm (1.1 in)	28 of 100 (Routine)
Higuera Blanca	Mexico	Record high minimum temperature	27.2 C (81.0 F)	28 of 100 (Routine)

Counts by Type and Timescale

797 records

Records set or tied on 21 August 2001 by type: Highest daily maximum 246, Lowest daily maximum 73, Highest daily minimum 265, Lowest daily minimum 99, Heaviest daily rainfall 114.

Records on 21 August 2001 by type
Record type	Records
Highest daily maximum	246
Lowest daily maximum	73
Highest daily minimum	265
Lowest daily minimum	99
Heaviest daily rainfall	114
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 August 2001 by timescale: all-time 0, monthly 42, daily 755.

How Much Records Were Beaten By

511 broken records

Margins by which the 511 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 102.1. Ties are not counted.

Top 20 by Significance

21 August 2001

Top 20 records on 21 August 2001 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 August 2001	Nicolas Bravo KM. 71, MX	daily rain	132.1 mm (5.2 in)	102.1 mm (4.0 in)	40 years	56 of 100 (Notable)
21 August 2001	Kansk, RU	monthly rain	94.0 mm (3.7 in)	47.0 mm (1.9 in)	2 years	56 of 100 (Notable)
21 August 2001	Chetumal (Dge), MX	monthly rain	212.1 mm (8.4 in)	81.5 mm (3.2 in)	0 years	55 of 100 (Notable)
21 August 2001	Makaweli 965, US	daily low max	26.7 C (80.1 F)	2.2 C (4.0 F)	78 years	54 of 100 (Notable)
21 August 2001	Muren, MN	daily rain	44.2 mm (1.7 in)	31.2 mm (1.2 in)	32 years	50 of 100 (Notable)
21 August 2001	Sredhekolymsk, RU	daily rain	34.2 mm (1.3 in)	27.4 mm (1.1 in)	4 years	47 of 100 (Notable)
21 August 2001	Guanacevi (Smn), MX	daily low min	5.6 C (42.1 F)	3.3 C (5.9 F)	62 years	46 of 100 (Notable)
21 August 2001	X-Pichil, MX	daily low min	15.6 C (60.1 F)	4.4 C (7.9 F)	40 years	46 of 100 (Notable)
21 August 2001	Flaming Gorge, US	daily rain	27.2 mm (1.1 in)	20.8 mm (0.8 in)	15 years	45 of 100 (Notable)
21 August 2001	Grays Rvr Hatchery, US	daily rain	51.6 mm (2.0 in)	39.9 mm (1.6 in)	4 years	45 of 100 (Notable)
21 August 2001	Tarwin Lower (Riverside), AU	daily rain	29.6 mm (1.2 in)	3.7 mm (0.15 in)	91 years	43 of 100 (Notable)
21 August 2001	Tonala (Smn), MX	monthly high min	30.6 C (87.1 F)	0.6 C (1.1 F)	79 years	43 of 100 (Notable)
21 August 2001	Pico del Este, PR	daily low min	13.9 C (57.0 F)	3.3 C (5.9 F)	28 years	43 of 100 (Notable)
21 August 2001	Keflavik, IS	daily rain	48.8 mm (1.9 in)	21.6 mm (0.9 in)	34 years	42 of 100 (Notable)
21 August 2001	Quillayute AP, US	daily rain	67.8 mm (2.7 in)	37.6 mm (1.5 in)	30 years	41 of 100 (Notable)
21 August 2001	Olsens Bridge (Morwell River P, AU	daily rain	54.0 mm (2.1 in)	25.8 mm (1.0 in)	11 years	40 of 100 (Notable)
21 August 2001	Pixoyal (Smn), MX	daily rain	84.6 mm (3.3 in)	29.7 mm (1.2 in)	50 years	40 of 100 (Notable)
21 August 2001	Dudinka, RU	daily high min	16.7 C (62.1 F)	2.9 C (5.2 F)	82 years	40 of 100 (Notable)
21 August 2001	Clifton, US	daily low min	13.9 C (57.0 F)	1.7 C (3.1 F)	83 years	40 of 100 (Notable)
21 August 2001	Astoria AP (Port of), US	daily rain	27.7 mm (1.1 in)	16.0 mm (0.6 in)	40 years	40 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

1800 to 2001

Records set or tied on this calendar date in each year from 1800 to 2001. 2001 had 797 records.

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

Records on 08-21 in each year
Year	Records
1800	1
1802	1
1804	1
1807	1
1816	1
1818	1
1832	1
1834	1
1839	3
1843	1
1847	1
1849	3
1850	1
1851	2
1863	1
1866	1
1867	2
1870	3
1871	2
1872	1
1873	1
1876	1
1877	2
1879	2
1884	2
1885	5
1886	1
1887	5
1888	2
1889	3
1890	4
1891	2
1893	4
1894	8
1895	3
1896	2
1897	4
1898	4
1899	7
1900	4
1901	9
1902	8
1903	6
1904	8
1905	4
1906	22
1907	20
1908	13
1909	17
1910	33
1911	19
1912	50
1913	37
1914	24
1915	21
1916	106
1917	101
1918	202
1919	19
1920	59
1921	34
1922	58
1923	111
1924	135
1925	220
1926	227
1927	228
1928	110
1929	234
1930	297
1931	277
1932	264
1933	328
1934	320
1935	318
1936	807
1937	762
1938	239
1939	630
1940	683
1941	180
1942	415
1943	438
1944	346
1945	544
1946	390
1947	954
1948	305
1949	508
1950	958
1951	699
1952	368
1953	331
1954	497
1955	885
1956	701
1957	490
1958	389
1959	704
1960	490
1961	644
1962	469
1963	338
1964	794
1965	455
1966	661
1967	541
1968	1,014
1969	650
1970	373
1971	660
1972	441
1973	438
1974	564
1975	545
1976	756
1977	764
1978	445
1979	778
1980	904
1981	1,015
1982	769
1983	1,407
1984	975
1985	623
1986	1,166
1987	740
1988	889
1989	828
1990	910
1991	828
1992	957
1993	698
1994	968
1995	962
1996	950
1997	1,291
1998	948
1999	717
2000	861
2001	797
2002	965
2003	1,241
2004	1,585
2005	1,071
2006	797
2007	1,829
2008	1,012
2009	1,319
2010	1,155
2011	1,022
2012	990
2013	513
2014	624
2015	651
2016	890
2017	347
2018	816
2019	631
2020	1,147
2021	767
2022	917
2023	1,826
2024	777
2025	1,230
2026	1,289

Download the Data

Data for records on 2001-08-21: 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	492
20 to 40	15
40 to 60	2
60 to 80	0
80 to 100	1
100 to 120	1