Weather Records on 28 August 2021

459 weather records were set or tied worldwide on 28 August 2021. Highest significance: New Hampton, US.

Key Facts for 28 August 2021

On 28 August 2021, 459 weather records were set or tied at long-record stations worldwide.
269 were record highs and 73 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 6 monthly and 451 daily.
New Hampton set a daily record precipitation of 109.7 mm (4.3 in) on 28 August 2021.
Across 161 earlier years (1800 to 2026) the same calendar date averaged 457 records.

Record Map

459 stations

459 station records on 28 August 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 28 August 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
New Hampton	United States	Record daily precipitation	109.7 mm (4.3 in)	76 of 100 (Major)
Postville	United States	Record daily precipitation	95.5 mm (3.8 in)	71 of 100 (Major)
Wellston Tippy Dam	United States	Record daily precipitation	75.2 mm (3.0 in)	66 of 100 (Major)
Martinsburg E W Virginia Rgnl	United States	Record daily precipitation	82.8 mm (3.3 in)	64 of 100 (Major)
Noupoort	South Africa	Record daily precipitation	56.9 mm (2.2 in)	61 of 100 (Major)
Northwood	United States	Record daily precipitation	125.2 mm (4.9 in)	60 of 100 (Major)
Lupton 1S	United States	Record daily precipitation	91.4 mm (3.6 in)	59 of 100 (Notable)
Evelyn Sharp Fld	United States	Record daily precipitation	61.2 mm (2.4 in)	56 of 100 (Notable)
Marshfield Exp Farm	United States	Record daily precipitation	73.9 mm (2.9 in)	55 of 100 (Notable)
Vacoas (Mauritius)	Mauritius	Record daily precipitation	85.1 mm (3.4 in)	54 of 100 (Notable)
Bowdle	United States	Record daily precipitation	34.3 mm (1.4 in)	54 of 100 (Notable)
Sioux Falls	United States	Record daily precipitation	85.1 mm (3.4 in)	53 of 100 (Notable)
Fayette	United States	Record daily precipitation	66.0 mm (2.6 in)	51 of 100 (Notable)
Osage	United States	Record daily precipitation	118.1 mm (4.6 in)	51 of 100 (Notable)
Lushi	China	Record daily precipitation	47.5 mm (1.9 in)	50 of 100 (Notable)
Minnesota City Dam 5	United States	Record daily precipitation	65.0 mm (2.6 in)	49 of 100 (Notable)
Clintonville	United States	Record daily precipitation	127.8 mm (5.0 in)	48 of 100 (Notable)
Rosholt	United States	Record daily precipitation	73.2 mm (2.9 in)	48 of 100 (Notable)
Waupaca	United States	Record daily precipitation	68.3 mm (2.7 in)	48 of 100 (Notable)
Winona Dam 5 A	United States	Record daily precipitation	46.7 mm (1.8 in)	45 of 100 (Notable)
Bellefontaine	United States	Record daily precipitation	47.8 mm (1.9 in)	45 of 100 (Notable)
Castle Rock	United States	Record high maximum temperature	36.1 C (97.0 F)	44 of 100 (Notable)
Inverness 3 SE	United States	Record high minimum temperature	25.6 C (78.1 F)	44 of 100 (Notable)
Viroqua	United States	Record daily precipitation	84.8 mm (3.3 in)	44 of 100 (Notable)
Moose Pass 3NW	United States	Record low maximum temperature	5.6 C (42.1 F)	44 of 100 (Notable)
Genoa 2 W	United States	Record high minimum temperature	23.3 C (73.9 F)	41 of 100 (Notable)
Elmira	United States	Record high minimum temperature	19.4 C (66.9 F)	41 of 100 (Notable)
Stevens Pt	United States	Record daily precipitation	56.1 mm (2.2 in)	41 of 100 (Notable)
Muskegon Co AP	United States	Record high minimum temperature	25.6 C (78.1 F)	41 of 100 (Notable)
Cairns Post Office	Australia	Record high maximum temperature	30.3 C (86.5 F)	40 of 100 (Notable)
St Cloud Rgnl AP	United States	Record daily precipitation	30.7 mm (1.2 in)	40 of 100 (Notable)
St. Brandon (St. Ra	Mauritius	Record daily precipitation	68.1 mm (2.7 in)	38 of 100 (Notable)
Fremont	United States	Record high minimum temperature	23.3 C (73.9 F)	38 of 100 (Notable)
Charlotteburg Rsvr	United States	Record high minimum temperature	20.6 C (69.1 F)	38 of 100 (Notable)
Sisseton	United States	Record daily precipitation	54.9 mm (2.2 in)	37 of 100 (Notable)
Charles City	United States	Record daily precipitation	59.2 mm (2.3 in)	36 of 100 (Notable)
Elkader 6 SSW	United States	Record daily precipitation	44.5 mm (1.8 in)	36 of 100 (Notable)
Myton	United States	Record high minimum temperature	15.0 C (59.0 F)	36 of 100 (Notable)
Shawano 2SSW	United States	Record daily precipitation	51.6 mm (2.0 in)	36 of 100 (Notable)
Goodland	United States	Record high minimum temperature	21.1 C (70.0 F)	36 of 100 (Notable)
Culebra #2	United States	Record high maximum temperature	33.2 C (91.8 F)	35 of 100 (Notable)
King Salmon	United States	Record low minimum temperature	-3.2 C (26.2 F)	35 of 100 (Notable)
Roscoe	United States	Record daily precipitation	38.1 mm (1.5 in)	34 of 100 (Routine)
Yichang	China	Record low minimum temperature	18.4 C (65.1 F)	33 of 100 (Routine)
Turuhansk	Russia	Record low maximum temperature	7.5 C (45.5 F)	33 of 100 (Routine)
Bolsoy Santar	Russia	Record high minimum temperature	13.6 C (56.5 F)	33 of 100 (Routine)
Bomnak	Russia	Record low maximum temperature	10.4 C (50.7 F)	33 of 100 (Routine)
Phila Intl AP	United States	Record daily precipitation	80.5 mm (3.2 in)	33 of 100 (Routine)
Zhengzhou	China	Record daily precipitation	35.6 mm (1.4 in)	32 of 100 (Routine)
Eagle Mtn	United States	Record high maximum temperature	46.1 C (115.0 F)	32 of 100 (Routine)
Milwaukee Mitchell AP	United States	Record high minimum temperature	25.0 C (77.0 F)	32 of 100 (Routine)
Alexandria Chandler Fld	United States	Record daily precipitation	57.7 mm (2.3 in)	32 of 100 (Routine)
Galeton	United States	Record daily precipitation	40.1 mm (1.6 in)	31 of 100 (Routine)
Lanai AP 656	United States	Record low maximum temperature	26.1 C (79.0 F)	31 of 100 (Routine)
Guangzhou	China	Record low minimum temperature	22.3 C (72.1 F)	30 of 100 (Routine)
Elat	Israel	Record high minimum temperature	30.9 C (87.6 F)	30 of 100 (Routine)
Tomakomai	Japan	Record high maximum temperature	28.8 C (83.8 F)	30 of 100 (Routine)
John Martin Dam	United States	Record high minimum temperature	20.6 C (69.1 F)	30 of 100 (Routine)
Trenton Dam 1N	United States	Record high minimum temperature	21.7 C (71.1 F)	30 of 100 (Routine)
Hite Rs	United States	Record low minimum temperature	11.7 C (53.1 F)	30 of 100 (Routine)

Counts by Type and Timescale

459 records

Records set or tied on 28 August 2021 by type: Highest daily maximum 110, Lowest daily maximum 41, Highest daily minimum 159, Lowest daily minimum 32, Heaviest daily rainfall 117.

Records on 28 August 2021 by type
Record type	Records
Highest daily maximum	110
Lowest daily maximum	41
Highest daily minimum	159
Lowest daily minimum	32
Heaviest daily rainfall	117
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 28 August 2021 by timescale: all-time 2, monthly 6, daily 451.

How Much Records Were Beaten By

342 broken records

Margins by which the 342 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 75.7. Ties are not counted.

Top 20 by Significance

28 August 2021

Top 20 records on 28 August 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 August 2021	New Hampton, US	daily rain	109.7 mm (4.3 in)	67.0 mm (2.6 in)	88 years	76 of 100 (Major)
28 August 2021	Postville, US	daily rain	95.5 mm (3.8 in)	53.1 mm (2.1 in)	88 years	71 of 100 (Major)
28 August 2021	Wellston Tippy Dam, US	daily rain	75.2 mm (3.0 in)	41.4 mm (1.6 in)	71 years	66 of 100 (Major)
28 August 2021	Martinsburg E W Virginia Rgnl, US	daily rain	82.8 mm (3.3 in)	32.8 mm (1.3 in)	106 years	64 of 100 (Major)
28 August 2021	Noupoort, ZA	daily rain	56.9 mm (2.2 in)	39.9 mm (1.6 in)	40 years	61 of 100 (Major)
28 August 2021	Northwood, US	daily rain	125.2 mm (4.9 in)	75.7 mm (3.0 in)	36 years	60 of 100 (Major)
28 August 2021	Lupton 1S, US	daily rain	91.4 mm (3.6 in)	66.8 mm (2.6 in)	43 years	59 of 100 (Notable)
28 August 2021	Evelyn Sharp Fld, US	daily rain	61.2 mm (2.4 in)	21.6 mm (0.9 in)	100 years	56 of 100 (Notable)
28 August 2021	Marshfield Exp Farm, US	daily rain	73.9 mm (2.9 in)	33.3 mm (1.3 in)	71 years	55 of 100 (Notable)
28 August 2021	Vacoas (Mauritius), MU	daily rain	85.1 mm (3.4 in)	69.1 mm (2.7 in)	27 years	54 of 100 (Notable)
28 August 2021	Bowdle, US	daily rain	34.3 mm (1.4 in)	15.2 mm (0.6 in)	114 years	54 of 100 (Notable)
28 August 2021	Sioux Falls, US	daily rain	85.1 mm (3.4 in)	24.9 mm (1.0 in)	88 years	53 of 100 (Notable)
28 August 2021	Fayette, US	daily rain	66.0 mm (2.6 in)	23.6 mm (0.9 in)	88 years	51 of 100 (Notable)
28 August 2021	Osage, US	daily rain	118.1 mm (4.6 in)	38.1 mm (1.5 in)	64 years	51 of 100 (Notable)
28 August 2021	Lushi, CN	daily rain	47.5 mm (1.9 in)	30.8 mm (1.2 in)	56 years	50 of 100 (Notable)
28 August 2021	Minnesota City Dam 5, US	daily rain	65.0 mm (2.6 in)	40.9 mm (1.6 in)	40 years	49 of 100 (Notable)
28 August 2021	Clintonville, US	all-time rain	127.8 mm (5.0 in)	25.2 mm (1.0 in)	2 years	48 of 100 (Notable)
28 August 2021	Rosholt, US	daily rain	73.2 mm (2.9 in)	30.0 mm (1.2 in)	60 years	48 of 100 (Notable)
28 August 2021	Waupaca, US	daily rain	68.3 mm (2.7 in)	11.1 mm (0.4 in)	108 years	48 of 100 (Notable)
28 August 2021	Winona Dam 5 A, US	daily rain	46.7 mm (1.8 in)	20.5 mm (0.8 in)	75 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

1800 to 2021

Records set or tied on this calendar date in each year from 1800 to 2021. 2021 had 459 records.

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

Records on 08-28 in each year
Year	Records
1800	1
1807	4
1811	1
1814	2
1817	1
1835	1
1849	1
1850	1
1851	1
1854	1
1856	1
1858	1
1863	1
1864	4
1865	3
1870	2
1873	1
1874	1
1875	1
1876	1
1877	2
1880	3
1881	4
1884	1
1885	2
1886	1
1887	1
1889	1
1890	4
1891	1
1892	2
1893	3
1894	2
1895	4
1896	9
1897	3
1901	12
1902	2
1903	16
1904	13
1905	23
1906	12
1907	2
1908	10
1909	20
1910	5
1911	34
1912	44
1913	17
1914	40
1915	43
1916	141
1917	49
1918	43
1919	39
1920	80
1921	47
1922	60
1923	79
1924	207
1925	165
1926	241
1927	239
1928	252
1929	162
1930	152
1931	306
1932	383
1933	376
1934	346
1935	545
1936	531
1937	545
1938	325
1939	296
1940	368
1941	485
1942	461
1943	366
1944	592
1945	368
1946	495
1947	288
1948	1,133
1949	442
1950	492
1951	694
1952	447
1953	762
1954	499
1955	413
1956	327
1957	545
1958	288
1959	552
1960	470
1961	371
1962	469
1963	464
1964	556
1965	635
1966	338
1967	701
1968	864
1969	1,089
1970	617
1971	695
1972	651
1973	1,211
1974	816
1975	507
1976	505
1977	757
1978	774
1979	838
1980	424
1981	1,120
1982	1,009
1983	748
1984	886
1985	528
1986	1,995
1987	1,260
1988	953
1989	911
1990	983
1991	968
1992	1,814
1993	1,061
1994	688
1995	954
1996	1,109
1997	1,082
1998	1,415
1999	905
2000	1,028
2001	1,042
2002	903
2003	792
2004	966
2005	731
2006	1,244
2007	788
2008	889
2009	928
2010	914
2011	1,748
2012	682
2013	693
2014	590
2015	660
2016	812
2017	1,060
2018	1,110
2019	943
2020	1,008
2021	459
2022	388
2023	899
2024	862
2025	871
2026	873

Download the Data

Data for records on 2021-08-28: 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	304
10 to 20	13
20 to 30	10
30 to 40	7
40 to 50	3
50 to 60	1
60 to 70	3
70 to 80	1