Weather Records on 30 August 2021

429 weather records were set or tied worldwide on 30 August 2021. Highest significance: Poplarville Exp STN, US.

Key Facts for 30 August 2021

On 30 August 2021, 429 weather records were set or tied at long-record stations worldwide.
282 were record highs and 35 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 9 monthly and 418 daily.
Poplarville Exp STN set a monthly record daily precipitation of 175.3 mm (6.9 in) on 30 August 2021.
Across 169 earlier years (1806 to 2026) the same calendar date averaged 423 records.

Record Map

429 stations

429 station records on 30 August 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 August 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
Poplarville Exp STN	United States	Record daily precipitation	175.3 mm (6.9 in)	78 of 100 (Major)
Slidell	United States	Record daily precipitation	254.0 mm (10.0 in)	66 of 100 (Major)
Ponchatoula 4 E	United States	Record daily precipitation	406.4 mm (16.0 in)	62 of 100 (Major)
Tulun	Russia	Record daily precipitation	52.8 mm (2.1 in)	59 of 100 (Notable)
Covington Fltr Plt	United States	Record daily precipitation	77.0 mm (3.0 in)	58 of 100 (Notable)
Meridian Naas	United States	Record daily precipitation	96.0 mm (3.8 in)	55 of 100 (Notable)
Livingston	United States	Record daily precipitation	411.5 mm (16.2 in)	52 of 100 (Notable)
Koloa Mauka 994	United States	Record daily precipitation	88.9 mm (3.5 in)	52 of 100 (Notable)
Colonia Juan Carras	Mexico	Record daily precipitation	183.9 mm (7.2 in)	50 of 100 (Notable)
Blacksburg Nwso	United States	Record daily precipitation	58.2 mm (2.3 in)	50 of 100 (Notable)
Kairouan	Tunisia	Record daily precipitation	35.8 mm (1.4 in)	48 of 100 (Notable)
Myronivka	Ukraine	Record daily precipitation	51.1 mm (2.0 in)	47 of 100 (Notable)
Progreso	Mexico	Record daily precipitation	50.5 mm (2.0 in)	46 of 100 (Notable)
Carbondale Sewage Plt	United States	Record high minimum temperature	26.7 C (80.1 F)	45 of 100 (Notable)
Beaconsfield (Mine & Heritage	Australia	Record daily precipitation	28.4 mm (1.1 in)	43 of 100 (Notable)
Berne Wwtp	United States	Record daily precipitation	29.2 mm (1.1 in)	43 of 100 (Notable)
Newburgh L&D	United States	Record daily precipitation	74.2 mm (2.9 in)	42 of 100 (Notable)
Ganca	Azerbaijan	Record high minimum temperature	22.8 C (73.0 F)	41 of 100 (Notable)
Newman	United States	Record high maximum temperature	42.8 C (109.0 F)	41 of 100 (Notable)
Rockville	United States	Record daily precipitation	58.4 mm (2.3 in)	41 of 100 (Notable)
Brocken	Germany	Record daily precipitation	47.4 mm (1.9 in)	40 of 100 (Notable)
Memmingen	Germany	Record daily precipitation	45.0 mm (1.8 in)	40 of 100 (Notable)
Dalatangi	Iceland	Record high maximum temperature	22.1 C (71.8 F)	40 of 100 (Notable)
Colonia Juan Carras	Mexico	Record low maximum temperature	27.9 C (82.2 F)	40 of 100 (Notable)
Greensburg	United States	Record daily precipitation	29.2 mm (1.1 in)	40 of 100 (Notable)
Quicksand	United States	Record high minimum temperature	21.1 C (70.0 F)	40 of 100 (Notable)
Bragin	Belarus	Record daily precipitation	34.0 mm (1.3 in)	38 of 100 (Notable)
Toamasina	Madagascar	Record daily precipitation	54.1 mm (2.1 in)	38 of 100 (Notable)
Towanda 1 S	United States	Record high minimum temperature	20.6 C (69.1 F)	38 of 100 (Notable)
Gotnja	Russia	Record high minimum temperature	20.0 C (68.0 F)	37 of 100 (Notable)
Quemado	United States	Record high minimum temperature	12.8 C (55.0 F)	37 of 100 (Notable)
Mobile	United States	Record daily precipitation	118.1 mm (4.6 in)	37 of 100 (Notable)
Schierke	Germany	Record daily precipitation	36.9 mm (1.5 in)	36 of 100 (Notable)
Gathright Dam	United States	Record daily precipitation	34.8 mm (1.4 in)	36 of 100 (Notable)
Wynne	United States	Record high minimum temperature	25.0 C (77.0 F)	35 of 100 (Notable)
Benghazi Benina	Libya	Record high maximum temperature	36.4 C (97.5 F)	34 of 100 (Routine)
Cawker City	United States	Record daily precipitation	46.7 mm (1.8 in)	34 of 100 (Routine)
St Louis Sci Ctr	United States	Record daily precipitation	56.1 mm (2.2 in)	34 of 100 (Routine)
Bluestone Lake	United States	Record daily precipitation	46.7 mm (1.8 in)	34 of 100 (Routine)
Gove Airport	Australia	Record high maximum temperature	33.4 C (92.1 F)	33 of 100 (Routine)
Five Points 5 SSW	United States	Record high maximum temperature	43.3 C (109.9 F)	33 of 100 (Routine)
Angelica	United States	Record high minimum temperature	18.9 C (66.0 F)	33 of 100 (Routine)
Kerch	Ukraine	Record high minimum temperature	23.1 C (73.6 F)	32 of 100 (Routine)
Tuscola	United States	Record high minimum temperature	23.3 C (73.9 F)	32 of 100 (Routine)
Bungawarra	Australia	Record daily precipitation	41.1 mm (1.6 in)	31 of 100 (Routine)
Tveitsund	Norway	Record high maximum temperature	25.9 C (78.6 F)	31 of 100 (Routine)
Kem-Port	Russia	Record low minimum temperature	0.1 C (32.2 F)	31 of 100 (Routine)
Fairhope 2 NE	United States	Record daily precipitation	129.5 mm (5.1 in)	31 of 100 (Routine)
Ouargla	Algeria	Record high minimum temperature	29.5 C (85.1 F)	30 of 100 (Routine)
Loken I Volbu	Norway	Record high maximum temperature	24.6 C (76.3 F)	29 of 100 (Routine)
Lafayette 8 S	United States	Record daily precipitation	103.4 mm (4.1 in)	29 of 100 (Routine)
Geneseo	United States	Record daily precipitation	78.7 mm (3.1 in)	29 of 100 (Routine)
Darganata	Uzbekistan	Record high minimum temperature	20.8 C (69.4 F)	29 of 100 (Routine)
Orel	Russia	Record high minimum temperature	18.2 C (64.8 F)	28 of 100 (Routine)
Thibodaux 4 SE	United States	Record daily precipitation	85.3 mm (3.4 in)	28 of 100 (Routine)
Mansfield Lahm Rgnl AP	United States	Record high minimum temperature	21.7 C (71.1 F)	28 of 100 (Routine)
Tupelo Rgnl AP	United States	Record daily precipitation	62.5 mm (2.5 in)	28 of 100 (Routine)
Juncos 1 SE	Puerto Rico [United States]	Record high minimum temperature	23.9 C (75.0 F)	27 of 100 (Routine)
Marion 2 N	United States	Record daily precipitation	33.0 mm (1.3 in)	27 of 100 (Routine)
Celina 3 NE	United States	Record daily precipitation	47.5 mm (1.9 in)	27 of 100 (Routine)

Counts by Type and Timescale

429 records

Records set or tied on 30 August 2021 by type: Highest daily maximum 79, Lowest daily maximum 19, Highest daily minimum 203, Lowest daily minimum 16, Heaviest daily rainfall 112.

Records on 30 August 2021 by type
Record type	Records
Highest daily maximum	79
Lowest daily maximum	19
Highest daily minimum	203
Lowest daily minimum	16
Heaviest daily rainfall	112
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 August 2021 by timescale: all-time 2, monthly 9, daily 418.

How Much Records Were Beaten By

294 broken records

Margins by which the 294 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 116.9. Ties are not counted.

Top 20 by Significance

30 August 2021

Top 20 records on 30 August 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 August 2021	Poplarville Exp STN, US	monthly rain	175.3 mm (6.9 in)	47.0 mm (1.9 in)	90 years	78 of 100 (Major)
30 August 2021	Slidell, US	monthly rain	254.0 mm (10.0 in)	99.1 mm (3.9 in)	36 years	66 of 100 (Major)
30 August 2021	Ponchatoula 4 E, US	all-time rain	406.4 mm (16.0 in)	67.1 mm (2.6 in)	5 years	62 of 100 (Major)
30 August 2021	Tulun, RU	daily rain	52.8 mm (2.1 in)	40.3 mm (1.6 in)	38 years	59 of 100 (Notable)
30 August 2021	Covington Fltr Plt, US	daily rain	77.0 mm (3.0 in)	53.1 mm (2.1 in)	40 years	58 of 100 (Notable)
30 August 2021	Meridian Naas, US	daily rain	96.0 mm (3.8 in)	52.1 mm (2.1 in)	47 years	55 of 100 (Notable)
30 August 2021	Livingston, US	all-time rain	411.5 mm (16.2 in)	77.2 mm (3.0 in)	8 years	52 of 100 (Notable)
30 August 2021	Koloa Mauka 994, US	daily rain	88.9 mm (3.5 in)	44.4 mm (1.7 in)	72 years	52 of 100 (Notable)
30 August 2021	Colonia Juan Carras, MX	daily rain	183.9 mm (7.2 in)	116.9 mm (4.6 in)	22 years	50 of 100 (Notable)
30 August 2021	Blacksburg Nwso, US	daily rain	58.2 mm (2.3 in)	43.5 mm (1.7 in)	20 years	50 of 100 (Notable)
30 August 2021	Kairouan, TN	daily rain	35.8 mm (1.4 in)	35.0 mm (1.4 in)	16 years	48 of 100 (Notable)
30 August 2021	Myronivka, UA	daily rain	51.1 mm (2.0 in)	23.9 mm (0.9 in)	56 years	47 of 100 (Notable)
30 August 2021	Progreso, MX	daily rain	50.5 mm (2.0 in)	38.1 mm (1.5 in)	28 years	46 of 100 (Notable)
30 August 2021	Carbondale Sewage Plt, US	daily high min	26.7 C (80.1 F)	3.4 C (6.1 F)	88 years	45 of 100 (Notable)
30 August 2021	Beaconsfield (Mine & Heritage, AU	daily rain	28.4 mm (1.1 in)	5.5 mm (0.22 in)	91 years	43 of 100 (Notable)
30 August 2021	Berne Wwtp, US	daily rain	29.2 mm (1.1 in)	6.3 mm (0.25 in)	94 years	43 of 100 (Notable)
30 August 2021	Newburgh L&D, US	daily rain	74.2 mm (2.9 in)	31.0 mm (1.2 in)	47 years	42 of 100 (Notable)
30 August 2021	Ganca, AZ	daily high min	22.8 C (73.0 F)	1.1 C (2.0 F)	91 years	41 of 100 (Notable)
30 August 2021	Newman, US	daily high max	42.8 C (109.0 F)	0.6 C (1.1 F)	108 years	41 of 100 (Notable)
30 August 2021	Rockville, US	daily rain	58.4 mm (2.3 in)	21.6 mm (0.9 in)	56 years	41 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

1806 to 2021

Records set or tied on this calendar date in each year from 1806 to 2021. 2021 had 429 records.

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

Records on 08-30 in each year
Year	Records
1806	1
1807	4
1813	1
1814	2
1827	1
1829	1
1835	1
1838	1
1839	1
1845	4
1850	1
1851	2
1855	1
1857	1
1859	1
1864	2
1867	1
1869	1
1870	2
1874	1
1875	2
1876	1
1877	2
1878	1
1880	4
1881	2
1882	1
1884	1
1885	5
1886	7
1887	1
1888	1
1889	2
1890	5
1891	1
1892	3
1893	3
1894	2
1895	1
1896	1
1897	3
1898	3
1899	2
1900	6
1901	8
1902	12
1903	19
1904	13
1905	23
1906	29
1907	8
1908	10
1909	37
1910	15
1911	41
1912	60
1913	22
1914	23
1915	47
1916	17
1917	50
1918	45
1919	17
1920	78
1921	100
1922	65
1923	61
1924	283
1925	167
1926	173
1927	109
1928	327
1929	208
1930	245
1931	192
1932	1,102
1933	274
1934	519
1935	476
1936	191
1937	418
1938	233
1939	401
1940	346
1941	422
1942	385
1943	487
1944	491
1945	455
1946	545
1947	599
1948	519
1949	240
1950	481
1951	1,091
1952	316
1953	1,124
1954	516
1955	417
1956	479
1957	321
1958	363
1959	546
1960	356
1961	573
1962	387
1963	442
1964	422
1965	1,118
1966	500
1967	536
1968	729
1969	522
1970	423
1971	443
1972	579
1973	646
1974	838
1975	664
1976	679
1977	665
1978	825
1979	517
1980	572
1981	684
1982	770
1983	696
1984	1,127
1985	629
1986	1,768
1987	638
1988	881
1989	791
1990	983
1991	938
1992	1,697
1993	1,200
1994	601
1995	940
1996	1,385
1997	960
1998	1,278
1999	864
2000	1,189
2001	750
2002	801
2003	1,226
2004	1,087
2005	1,500
2006	989
2007	1,300
2008	678
2009	1,251
2010	1,552
2011	994
2012	1,087
2013	644
2014	558
2015	1,074
2016	552
2017	924
2018	616
2019	755
2020	671
2021	429
2022	1,077
2023	651
2024	912
2025	324
2026	733

Download the Data

Data for records on 2021-08-30: 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	269
20 to 40	15
40 to 60	6
60 to 80	2
80 to 100	1
100 to 120	1