Weather Records on 30 August 1971

443 weather records were set or tied worldwide on 30 August 1971. Highest significance: Gibson Dam, US.

Key Facts for 30 August 1971

On 30 August 1971, 443 weather records were set or tied at long-record stations worldwide.
131 were record highs and 65 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 11 monthly and 432 daily.
Gibson Dam set a monthly record daily precipitation of 102.6 mm (4.0 in) on 30 August 1971.
Across 169 earlier years (1806 to 2026) the same calendar date averaged 423 records.

Record Map

443 stations

443 station records on 30 August 1971 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 August 1971: highest significance records shown on the map
Station	Country	Type	Value	Significance
Gibson Dam	United States	Record daily precipitation	102.6 mm (4.0 in)	70 of 100 (Major)
Kennebec	United States	Record daily precipitation	76.2 mm (3.0 in)	64 of 100 (Major)
Coulta	Australia	Record daily precipitation	35.6 mm (1.4 in)	60 of 100 (Major)
Faulkton	United States	Record daily precipitation	101.6 mm (4.0 in)	56 of 100 (Notable)
Miller	United States	Record daily precipitation	65.0 mm (2.6 in)	55 of 100 (Notable)
Redfield	United States	Record daily precipitation	48.8 mm (1.9 in)	55 of 100 (Notable)
Miles City	United States	Record daily precipitation	28.4 mm (1.1 in)	53 of 100 (Notable)
Port Lincoln	Australia	Record daily precipitation	26.9 mm (1.1 in)	52 of 100 (Notable)
Highmore	United States	Record daily precipitation	62.2 mm (2.4 in)	52 of 100 (Notable)
Forsyth 2 E	United States	Record daily precipitation	73.2 mm (2.9 in)	51 of 100 (Notable)
Pineview Dam	United States	Record daily precipitation	37.3 mm (1.5 in)	51 of 100 (Notable)
Cachoeiro Itapemiri	Brazil	Record daily precipitation	36.2 mm (1.4 in)	50 of 100 (Notable)
Mellette 4 W	United States	Record daily precipitation	45.7 mm (1.8 in)	50 of 100 (Notable)
Arlington 1 W	United States	Record daily precipitation	63.5 mm (2.5 in)	49 of 100 (Notable)
Onaka	United States	Record daily precipitation	67.3 mm (2.6 in)	49 of 100 (Notable)
Colstrip	United States	Record daily precipitation	45.5 mm (1.8 in)	48 of 100 (Notable)
Springview 2NW	United States	Record daily precipitation	38.1 mm (1.5 in)	47 of 100 (Notable)
Gettysburg	United States	Record daily precipitation	63.5 mm (2.5 in)	47 of 100 (Notable)
Point Pass	Australia	Record daily precipitation	31.8 mm (1.3 in)	46 of 100 (Notable)
Arteaga	Mexico	Record daily precipitation	98.8 mm (3.9 in)	46 of 100 (Notable)
Hebgen Dam	United States	Record daily precipitation	36.1 mm (1.4 in)	46 of 100 (Notable)
Valentine Nwr	United States	Record daily precipitation	72.9 mm (2.9 in)	45 of 100 (Notable)
Huron Rgnl AP	United States	Record daily precipitation	30.7 mm (1.2 in)	45 of 100 (Notable)
Ponce 4 E	Puerto Rico [United States]	Record low maximum temperature	28.3 C (82.9 F)	44 of 100 (Notable)
Uppsala_Aut	Sweden	Record low maximum temperature	13.0 C (55.4 F)	44 of 100 (Notable)
Newton	United States	Record daily precipitation	43.4 mm (1.7 in)	44 of 100 (Notable)
Augusta	United States	Record daily precipitation	32.0 mm (1.3 in)	44 of 100 (Notable)
Richland	United States	Record daily precipitation	29.0 mm (1.1 in)	44 of 100 (Notable)
Clark	United States	Record daily precipitation	58.9 mm (2.3 in)	44 of 100 (Notable)
Barber	United States	Record daily precipitation	39.9 mm (1.6 in)	43 of 100 (Notable)
Brewster	United States	Record daily precipitation	66.0 mm (2.6 in)	43 of 100 (Notable)
La Delle 7 NE	United States	Record daily precipitation	34.5 mm (1.4 in)	43 of 100 (Notable)
Patrocinio Do Muriae	Brazil	Record daily precipitation	28.4 mm (1.1 in)	41 of 100 (Notable)
Martinsdale 3 NNW	United States	Record daily precipitation	41.7 mm (1.6 in)	41 of 100 (Notable)
Howard	United States	Record daily precipitation	48.8 mm (1.9 in)	41 of 100 (Notable)
Madrid	United States	Record daily precipitation	49.0 mm (1.9 in)	40 of 100 (Notable)
Cottonwood 2 E	United States	Record daily precipitation	41.1 mm (1.6 in)	39 of 100 (Notable)
Rive	Brazil	Record daily precipitation	25.0 mm (1.0 in)	38 of 100 (Notable)
Saint Maries	United States	Record high minimum temperature	17.2 C (63.0 F)	38 of 100 (Notable)
Coorada	Australia	Record daily precipitation	35.6 mm (1.4 in)	37 of 100 (Notable)
Fitzgerald	United States	Record daily precipitation	71.6 mm (2.8 in)	37 of 100 (Notable)
Ponce 4 E	Puerto Rico [United States]	Record low minimum temperature	20.0 C (68.0 F)	36 of 100 (Notable)
Truro	Australia	Record daily precipitation	29.2 mm (1.1 in)	35 of 100 (Notable)
Butte	United States	Record daily precipitation	54.4 mm (2.1 in)	35 of 100 (Notable)
Paxton	United States	Record daily precipitation	25.4 mm (1.0 in)	35 of 100 (Notable)
Castlewood	United States	Record daily precipitation	43.9 mm (1.7 in)	35 of 100 (Notable)
De Smet	United States	Record daily precipitation	44.5 mm (1.8 in)	35 of 100 (Notable)
Watertown Rgnl AP	United States	Record daily precipitation	63.8 mm (2.5 in)	35 of 100 (Notable)
Alapaha Exp STN	United States	Record daily precipitation	64.0 mm (2.5 in)	34 of 100 (Routine)
Covington 8 WNW	United States	Record daily precipitation	35.6 mm (1.4 in)	34 of 100 (Routine)
Orlando Executive AP	United States	Record high minimum temperature	25.0 C (77.0 F)	34 of 100 (Routine)
Miles City AP	United States	Record daily precipitation	35.6 mm (1.4 in)	33 of 100 (Routine)
Coalcoman (Smn)	Mexico	Record low maximum temperature	23.9 C (75.0 F)	32 of 100 (Routine)
Fortine 1 N	United States	Record high minimum temperature	14.4 C (57.9 F)	32 of 100 (Routine)
Hawkinsville	United States	Record daily precipitation	52.1 mm (2.1 in)	31 of 100 (Routine)
Scott	United States	Record low maximum temperature	23.3 C (73.9 F)	31 of 100 (Routine)
Ainsworth	United States	Record daily precipitation	60.2 mm (2.4 in)	31 of 100 (Routine)
Mullen 3S	United States	Record daily precipitation	43.2 mm (1.7 in)	31 of 100 (Routine)
Forman 5 SSE	United States	Record daily precipitation	43.9 mm (1.7 in)	31 of 100 (Routine)
Onida 4 NW	United States	Record daily precipitation	64.8 mm (2.6 in)	31 of 100 (Routine)

Counts by Type and Timescale

443 records

Records set or tied on 30 August 1971 by type: Highest daily maximum 26, Lowest daily maximum 35, Highest daily minimum 105, Lowest daily minimum 30, Heaviest daily rainfall 247.

Records on 30 August 1971 by type
Record type	Records
Highest daily maximum	26
Lowest daily maximum	35
Highest daily minimum	105
Lowest daily minimum	30
Heaviest daily rainfall	247
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 August 1971 by timescale: all-time 0, monthly 11, daily 432.

How Much Records Were Beaten By

382 broken records

Margins by which the 382 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 73.4. Ties are not counted.

Top 20 by Significance

30 August 1971

Top 20 records on 30 August 1971 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 August 1971	Gibson Dam, US	monthly rain	102.6 mm (4.0 in)	46.7 mm (1.8 in)	48 years	70 of 100 (Major)
30 August 1971	Kennebec, US	daily rain	76.2 mm (3.0 in)	53.3 mm (2.1 in)	58 years	64 of 100 (Major)
30 August 1971	Coulta, AU	daily rain	35.6 mm (1.4 in)	14.3 mm (0.6 in)	78 years	60 of 100 (Major)
30 August 1971	Faulkton, US	monthly rain	101.6 mm (4.0 in)	36.8 mm (1.4 in)	11 years	56 of 100 (Notable)
30 August 1971	Miller, US	daily rain	65.0 mm (2.6 in)	47.0 mm (1.9 in)	28 years	55 of 100 (Notable)
30 August 1971	Redfield, US	daily rain	48.8 mm (1.9 in)	33.6 mm (1.3 in)	68 years	55 of 100 (Notable)
30 August 1971	Miles City, US	daily rain	28.4 mm (1.1 in)	19.3 mm (0.8 in)	68 years	53 of 100 (Notable)
30 August 1971	Port Lincoln, AU	daily rain	26.9 mm (1.1 in)	10.9 mm (0.4 in)	53 years	52 of 100 (Notable)
30 August 1971	Highmore, US	daily rain	62.2 mm (2.4 in)	28.2 mm (1.1 in)	68 years	52 of 100 (Notable)
30 August 1971	Forsyth 2 E, US	monthly rain	73.2 mm (2.9 in)	22.4 mm (0.9 in)	7 years	51 of 100 (Notable)
30 August 1971	Pineview Dam, US	daily rain	37.3 mm (1.5 in)	33.7 mm (1.3 in)	29 years	51 of 100 (Notable)
30 August 1971	Cachoeiro Itapemiri, BR	daily rain	36.2 mm (1.4 in)	25.1 mm (1.0 in)	24 years	50 of 100 (Notable)
30 August 1971	Mellette 4 W, US	daily rain	45.7 mm (1.8 in)	23.9 mm (0.9 in)	71 years	50 of 100 (Notable)
30 August 1971	Arlington 1 W, US	daily rain	63.5 mm (2.5 in)	41.7 mm (1.6 in)	20 years	49 of 100 (Notable)
30 August 1971	Onaka, US	daily rain	67.3 mm (2.6 in)	50.8 mm (2.0 in)	12 years	49 of 100 (Notable)
30 August 1971	Colstrip, US	daily rain	45.5 mm (1.8 in)	30.8 mm (1.2 in)	14 years	48 of 100 (Notable)
30 August 1971	Springview 2NW, US	daily rain	38.1 mm (1.5 in)	21.1 mm (0.8 in)	68 years	47 of 100 (Notable)
30 August 1971	Gettysburg, US	daily rain	63.5 mm (2.5 in)	42.9 mm (1.7 in)	1 year	47 of 100 (Notable)
30 August 1971	Point Pass, AU	daily rain	31.8 mm (1.3 in)	17.3 mm (0.7 in)	32 years	46 of 100 (Notable)
30 August 1971	Arteaga, MX	daily rain	98.8 mm (3.9 in)	73.4 mm (2.9 in)	25 years	46 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 1971

Records set or tied on this calendar date in each year from 1806 to 1971. 1971 had 443 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 1971-08-30: 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 10	296
10 to 20	48
20 to 30	22
30 to 40	7
40 to 50	5
50 to 60	3
60 to 70	0
70 to 80	1