Weather Records on 31 August 1971

326 weather records were set or tied worldwide on 31 August 1971. Highest significance: Pulosero, RU.

Key Facts for 31 August 1971

On 31 August 1971, 326 weather records were set or tied at long-record stations worldwide.
81 were record highs and 71 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 14 monthly and 311 daily.
Pulosero set an all-time record daily precipitation of 58.5 mm (2.3 in) on 31 August 1971.
Across 165 earlier years (1796 to 2026) the same calendar date averaged 437 records.

Record Map

326 stations

326 station records on 31 August 1971 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 August 1971: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pulosero	Russia	Record daily precipitation	58.5 mm (2.3 in)	71 of 100 (Major)
Cottonwood 2 E	United States	Record daily precipitation	70.4 mm (2.8 in)	61 of 100 (Major)
Winthrop 1 WSW	United States	Record daily precipitation	31.8 mm (1.3 in)	57 of 100 (Notable)
Hvar	Croatia	Record daily precipitation	61.2 mm (2.4 in)	56 of 100 (Notable)
Alcozauca (Smn)	Mexico	Record daily precipitation	62.5 mm (2.5 in)	53 of 100 (Notable)
Morris W Cntrl Rsch & Outreach	United States	Record daily precipitation	93.2 mm (3.7 in)	52 of 100 (Notable)
Redwood Falls Muni AP	United States	Record daily precipitation	43.4 mm (1.7 in)	44 of 100 (Notable)
Mascota (Smn)	Mexico	Record daily precipitation	101.9 mm (4.0 in)	41 of 100 (Notable)
McGregor	United States	Record daily precipitation	84.1 mm (3.3 in)	41 of 100 (Notable)
Alma	United States	Record daily precipitation	53.3 mm (2.1 in)	38 of 100 (Notable)
Milbank 4 NW	United States	Record daily precipitation	40.4 mm (1.6 in)	37 of 100 (Notable)
Tangambalanga NE Dairy	Australia	Record daily precipitation	73.2 mm (2.9 in)	36 of 100 (Notable)
Murmansk	Russia	Record daily precipitation	37.2 mm (1.5 in)	36 of 100 (Notable)
Orenburg	Russia	Record high minimum temperature	19.6 C (67.3 F)	35 of 100 (Notable)
El Grullo	Mexico	Record daily precipitation	87.4 mm (3.4 in)	34 of 100 (Routine)
Victor 4 N	United States	Record daily precipitation	43.2 mm (1.7 in)	34 of 100 (Routine)
Puerto Vallarta	Mexico	Record daily precipitation	122.9 mm (4.8 in)	32 of 100 (Routine)
Lovozero	Russia	Record daily precipitation	42.4 mm (1.7 in)	32 of 100 (Routine)
Greenwood	Canada	Record high minimum temperature	11.7 C (53.1 F)	31 of 100 (Routine)
Artichoke Lake 1 E	United States	Record daily precipitation	38.1 mm (1.5 in)	31 of 100 (Routine)
Corvallis Water Bureau	United States	Record daily precipitation	27.4 mm (1.1 in)	31 of 100 (Routine)
Orlando Executive AP	United States	Record high minimum temperature	25.0 C (77.0 F)	31 of 100 (Routine)
Priest Rvr Exp STN	United States	Record daily precipitation	28.7 mm (1.1 in)	30 of 100 (Routine)
Sitka Magnetic Obsy	United States	Record high maximum temperature	22.2 C (72.0 F)	29 of 100 (Routine)
Vardoe	Norway	Record daily precipitation	25.0 mm (1.0 in)	28 of 100 (Routine)
Silver Creek Falls	United States	Record daily precipitation	38.6 mm (1.5 in)	28 of 100 (Routine)
Georgetown Post Office	Australia	Record high minimum temperature	21.1 C (70.0 F)	27 of 100 (Routine)
Beaver City	United States	Record daily precipitation	59.2 mm (2.3 in)	27 of 100 (Routine)
Golden A	Canada	Record high minimum temperature	13.9 C (57.0 F)	26 of 100 (Routine)
Arteaga	Mexico	Record low maximum temperature	22.2 C (72.0 F)	26 of 100 (Routine)
Ostrov Kotelnyj	Russia	Record high minimum temperature	5.2 C (41.4 F)	26 of 100 (Routine)
Lake Spaulding	United States	Record low maximum temperature	18.3 C (64.9 F)	26 of 100 (Routine)
Orleans	United States	Record low maximum temperature	21.7 C (71.1 F)	26 of 100 (Routine)
Estes Park	United States	Record high minimum temperature	12.8 C (55.0 F)	26 of 100 (Routine)
Valemount	Canada	Record high minimum temperature	13.3 C (55.9 F)	25 of 100 (Routine)
Semej	Kazakhstan	Record low minimum temperature	0.5 C (32.9 F)	25 of 100 (Routine)
Coalcoman (Smn)	Mexico	Record low maximum temperature	22.8 C (73.0 F)	25 of 100 (Routine)
Kjusjur	Russia	Record high maximum temperature	21.9 C (71.4 F)	25 of 100 (Routine)
Denair 3 NNE	United States	Record low maximum temperature	25.0 C (77.0 F)	25 of 100 (Routine)
Brookport Dam 52	United States	Record daily precipitation	45.7 mm (1.8 in)	25 of 100 (Routine)
N Bend SW Oregon Rgnl AP	United States	Record daily precipitation	36.3 mm (1.4 in)	25 of 100 (Routine)
Fort St James	Canada	Record high minimum temperature	11.7 C (53.1 F)	24 of 100 (Routine)
Brooks Ahrc	Canada	Record high minimum temperature	14.4 C (57.9 F)	24 of 100 (Routine)
Suhana	Russia	Record high maximum temperature	25.6 C (78.1 F)	24 of 100 (Routine)
Ostrov Kotelnyj	Russia	Record high maximum temperature	13.5 C (56.3 F)	23 of 100 (Routine)
Elephant Butte Dam	United States	Record high minimum temperature	21.1 C (70.0 F)	23 of 100 (Routine)
Conceicao Dos Ouros	Brazil	Record daily precipitation	45.2 mm (1.8 in)	22 of 100 (Routine)
Dawson	Canada	Record high minimum temperature	9.4 C (48.9 F)	22 of 100 (Routine)
Fort Vermilion Cda	Canada	Record high minimum temperature	14.4 C (57.9 F)	22 of 100 (Routine)
Zhigansk	Russia	Record high maximum temperature	25.3 C (77.5 F)	22 of 100 (Routine)
Collegeville St John's	United States	Record daily precipitation	38.4 mm (1.5 in)	22 of 100 (Routine)
Farmington 3NW	United States	Record daily precipitation	43.2 mm (1.7 in)	22 of 100 (Routine)
Gilmer 4 WNW	United States	Record low minimum temperature	13.3 C (55.9 F)	22 of 100 (Routine)
Vavenby	Canada	Record high minimum temperature	15.0 C (59.0 F)	21 of 100 (Routine)
Buenavista	Mexico	Record daily precipitation	55.1 mm (2.2 in)	21 of 100 (Routine)
Jubilejnaja	Russia	Record high maximum temperature	20.2 C (68.4 F)	21 of 100 (Routine)
Salem	United States	Record daily precipitation	32.5 mm (1.3 in)	21 of 100 (Routine)
Orleans 2 W	United States	Record daily precipitation	27.9 mm (1.1 in)	21 of 100 (Routine)
Salem AP (McNary Field)	United States	Record daily precipitation	29.0 mm (1.1 in)	21 of 100 (Routine)
Katherine Council	Australia	Record daily precipitation	11.4 mm (0.4 in)	20 of 100 (Routine)

Counts by Type and Timescale

326 records

Records set or tied on 31 August 1971 by type: Highest daily maximum 13, Lowest daily maximum 39, Highest daily minimum 68, Lowest daily minimum 32, Heaviest daily rainfall 174.

Records on 31 August 1971 by type
Record type	Records
Highest daily maximum	13
Lowest daily maximum	39
Highest daily minimum	68
Lowest daily minimum	32
Heaviest daily rainfall	174
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 August 1971 by timescale: all-time 1, monthly 14, daily 311.

How Much Records Were Beaten By

263 broken records

Margins by which the 263 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 64.0. Ties are not counted.

Top 20 by Significance

31 August 1971

Top 20 records on 31 August 1971 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 August 1971	Pulosero, RU	all-time rain	58.5 mm (2.3 in)	16.1 mm (0.6 in)	33 years	71 of 100 (Major)
31 August 1971	Cottonwood 2 E, US	daily rain	70.4 mm (2.8 in)	64.0 mm (2.5 in)	50 years	61 of 100 (Major)
31 August 1971	Winthrop 1 WSW, US	daily rain	31.8 mm (1.3 in)	19.4 mm (0.8 in)	48 years	57 of 100 (Notable)
31 August 1971	Hvar, HR	daily rain	61.2 mm (2.4 in)	26.7 mm (1.1 in)	85 years	56 of 100 (Notable)
31 August 1971	Alcozauca (Smn), MX	daily rain	62.5 mm (2.5 in)	37.1 mm (1.5 in)	30 years	53 of 100 (Notable)
31 August 1971	Morris W Cntrl Rsch & Outreach, US	daily rain	93.2 mm (3.7 in)	56.6 mm (2.2 in)	13 years	52 of 100 (Notable)
31 August 1971	Redwood Falls Muni AP, US	daily rain	43.4 mm (1.7 in)	33.7 mm (1.3 in)	26 years	44 of 100 (Notable)
31 August 1971	Mascota (Smn), MX	monthly rain	101.9 mm (4.0 in)	26.0 mm (1.0 in)	5 years	41 of 100 (Notable)
31 August 1971	McGregor, US	daily rain	84.1 mm (3.3 in)	57.9 mm (2.3 in)	12 years	41 of 100 (Notable)
31 August 1971	Alma, US	daily rain	53.3 mm (2.1 in)	19.0 mm (0.7 in)	69 years	38 of 100 (Notable)
31 August 1971	Milbank 4 NW, US	daily rain	40.4 mm (1.6 in)	26.4 mm (1.0 in)	20 years	37 of 100 (Notable)
31 August 1971	Tangambalanga NE Dairy, AU	monthly rain	73.2 mm (2.9 in)	3.9 mm (0.15 in)	53 years	36 of 100 (Notable)
31 August 1971	Murmansk, RU	daily rain	37.2 mm (1.5 in)	16.5 mm (0.6 in)	1 year	36 of 100 (Notable)
31 August 1971	Orenburg, RU	daily high min	19.6 C (67.3 F)	2.0 C (3.6 F)	73 years	35 of 100 (Notable)
31 August 1971	El Grullo, MX	monthly rain	87.4 mm (3.4 in)	21.6 mm (0.9 in)	8 years	34 of 100 (Routine)
31 August 1971	Victor 4 N, US	daily rain	43.2 mm (1.7 in)	26.2 mm (1.0 in)	26 years	34 of 100 (Routine)
31 August 1971	Puerto Vallarta, MX	daily rain	122.9 mm (4.8 in)	63.0 mm (2.5 in)	9 years	32 of 100 (Routine)
31 August 1971	Lovozero, RU	daily rain	42.4 mm (1.7 in)	17.1 mm (0.7 in)	6 years	32 of 100 (Routine)
31 August 1971	Greenwood, CA	daily high min	11.7 C (53.1 F)	2.8 C (5.0 F)	54 years	31 of 100 (Routine)
31 August 1971	Artichoke Lake 1 E, US	daily rain	38.1 mm (1.5 in)	24.1 mm (0.9 in)	32 years	31 of 100 (Routine)

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

1796 to 1971

Records set or tied on this calendar date in each year from 1796 to 1971. 1971 had 326 records.

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

Records on 08-31 in each year
Year	Records
1796	1
1806	1
1807	2
1813	1
1814	1
1816	1
1827	1
1836	1
1846	1
1849	1
1851	1
1856	2
1858	1
1859	1
1860	1
1861	1
1863	1
1867	1
1869	1
1873	1
1875	1
1876	1
1877	2
1879	2
1881	3
1882	2
1885	1
1886	5
1887	1
1889	1
1890	2
1892	3
1893	1
1894	1
1895	1
1896	1
1897	5
1898	10
1899	4
1900	3
1901	5
1902	5
1903	16
1904	13
1905	8
1906	47
1907	6
1908	12
1909	39
1910	20
1911	31
1912	34
1913	40
1914	23
1915	71
1916	7
1917	60
1918	58
1919	25
1920	46
1921	86
1922	58
1923	63
1924	232
1925	111
1926	148
1927	103
1928	201
1929	300
1930	243
1931	192
1932	807
1933	424
1934	381
1935	540
1936	226
1937	508
1938	324
1939	296
1940	400
1941	528
1942	422
1943	650
1944	638
1945	572
1946	545
1947	473
1948	367
1949	409
1950	662
1951	910
1952	388
1953	1,054
1954	633
1955	539
1956	734
1957	317
1958	417
1959	496
1960	366
1961	625
1962	432
1963	415
1964	591
1965	886
1966	830
1967	952
1968	562
1969	474
1970	558
1971	326
1972	287
1973	793
1974	587
1975	658
1976	732
1977	621
1978	891
1979	400
1980	701
1981	692
1982	586
1983	788
1984	866
1985	854
1986	1,218
1987	836
1988	570
1989	622
1990	966
1991	848
1992	1,274
1993	1,286
1994	1,139
1995	1,077
1996	1,451
1997	943
1998	1,163
1999	988
2000	1,545
2001	944
2002	852
2003	1,232
2004	963
2005	1,782
2006	1,147
2007	1,110
2008	870
2009	1,224
2010	1,490
2011	994
2012	932
2013	771
2014	458
2015	1,074
2016	599
2017	596
2018	366
2019	781
2020	737
2021	553
2022	1,191
2023	600
2024	766
2025	307
2026	595

Download the Data

Data for records on 1971-08-31: 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	222
10 to 20	28
20 to 30	7
30 to 40	2
40 to 50	0
50 to 60	2
60 to 70	2