Weather Records on 31 August 1991

848 weather records were set or tied worldwide on 31 August 1991. Highest significance: Premaydena Hatchery, AU.

Key Facts for 31 August 1991

On 31 August 1991, 848 weather records were set or tied at long-record stations worldwide.
542 were record highs and 79 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 12 monthly and 834 daily.
Premaydena Hatchery set a daily record precipitation of 50.8 mm (2.0 in) on 31 August 1991.
Across 165 earlier years (1796 to 2026) the same calendar date averaged 433 records.

Record Map

848 stations

848 station records on 31 August 1991 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 August 1991: highest significance records shown on the map
Station	Country	Type	Value	Significance
Premaydena Hatchery	Australia	Record daily precipitation	50.8 mm (2.0 in)	70 of 100 (Major)
Woodbridge	Australia	Record daily precipitation	39.0 mm (1.5 in)	62 of 100 (Major)
Kettering (Saddle Road)	Australia	Record daily precipitation	42.6 mm (1.7 in)	61 of 100 (Major)
Eaglehawk Neck (Jetty Road)	Australia	Record daily precipitation	36.4 mm (1.4 in)	58 of 100 (Notable)
Bohodukhiv	Ukraine	Record daily precipitation	99.1 mm (3.9 in)	58 of 100 (Notable)
Nubeena	Australia	Record daily precipitation	39.0 mm (1.5 in)	54 of 100 (Notable)
Plain Dealing	United States	Record daily precipitation	82.3 mm (3.2 in)	52 of 100 (Notable)
Stornoway Airport	United Kingdom	Record high maximum temperature	22.8 C (73.0 F)	50 of 100 (Notable)
Ft Kent	United States	Record daily precipitation	45.0 mm (1.8 in)	49 of 100 (Notable)
Hachinohe	Japan	Record daily precipitation	93.0 mm (3.7 in)	48 of 100 (Notable)
Walterboro 1 SW	United States	Record high minimum temperature	26.1 C (79.0 F)	47 of 100 (Notable)
Canton 5 W	United States	Record daily precipitation	57.9 mm (2.3 in)	47 of 100 (Notable)
De Ridder	United States	Record daily precipitation	61.0 mm (2.4 in)	46 of 100 (Notable)
Walnut Grove	United States	Record daily precipitation	76.2 mm (3.0 in)	46 of 100 (Notable)
Bream Creek (Stroud)	Australia	Record daily precipitation	41.0 mm (1.6 in)	45 of 100 (Notable)
Barcelona/Aeropuerto	Spain	Record high minimum temperature	24.2 C (75.6 F)	45 of 100 (Notable)
Nerchinskij Zavod	Russia	Record daily precipitation	39.7 mm (1.6 in)	44 of 100 (Notable)
Tisul	Russia	Record daily precipitation	33.6 mm (1.3 in)	43 of 100 (Notable)
Levendale	Australia	Record daily precipitation	28.8 mm (1.1 in)	41 of 100 (Notable)
Cotton Valley 5 NNW	United States	Record daily precipitation	68.6 mm (2.7 in)	41 of 100 (Notable)
Frederick Police Brks	United States	Record high minimum temperature	25.0 C (77.0 F)	41 of 100 (Notable)
Renovo	United States	Record high maximum temperature	35.6 C (96.1 F)	40 of 100 (Notable)
Karnack	United States	Record daily precipitation	78.2 mm (3.1 in)	40 of 100 (Notable)
Miahuatlan (Smn)	Mexico	Record high maximum temperature	37.8 C (100.0 F)	39 of 100 (Notable)
Newark Ag Farm	United States	Record high minimum temperature	23.3 C (73.9 F)	39 of 100 (Notable)
Tacambaro	Mexico	Record daily precipitation	42.9 mm (1.7 in)	38 of 100 (Notable)
Gibson City	United States	Record daily precipitation	54.6 mm (2.1 in)	38 of 100 (Notable)
Iron Mtn-Kingsford Wwtp	United States	Record high maximum temperature	35.0 C (95.0 F)	37 of 100 (Notable)
Bolivar	United States	Record high maximum temperature	32.2 C (90.0 F)	37 of 100 (Notable)
New London	United States	Record high minimum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
Kellevie	Australia	Record daily precipitation	42.0 mm (1.7 in)	36 of 100 (Notable)
Middleton Post Office	Australia	Record daily precipitation	32.0 mm (1.3 in)	36 of 100 (Notable)
Alonnah Area School	Australia	Record daily precipitation	37.5 mm (1.5 in)	36 of 100 (Notable)
Birsk	Russia	Record daily precipitation	25.7 mm (1.0 in)	36 of 100 (Notable)
Richfield	United States	Record high maximum temperature	36.7 C (98.1 F)	36 of 100 (Notable)
Arlington	United States	Record high minimum temperature	20.0 C (68.0 F)	36 of 100 (Notable)
Atlantic City Marina	United States	Record high maximum temperature	33.9 C (93.0 F)	36 of 100 (Notable)
Penjamo	Mexico	Record low minimum temperature	10.0 C (50.0 F)	35 of 100 (Notable)
Tenosique (Smn)	Mexico	Record high maximum temperature	38.9 C (102.0 F)	35 of 100 (Notable)
Comanche	United States	Record daily precipitation	59.7 mm (2.4 in)	35 of 100 (Notable)
Bluestone Lake	United States	Record daily precipitation	34.5 mm (1.4 in)	35 of 100 (Notable)
Sidney	United States	Record high minimum temperature	20.0 C (68.0 F)	34 of 100 (Routine)
Cabot	United States	Record daily precipitation	69.9 mm (2.8 in)	33 of 100 (Routine)
Anaconda	United States	Record high maximum temperature	32.2 C (90.0 F)	33 of 100 (Routine)
Old Forge	United States	Record high maximum temperature	30.0 C (86.0 F)	33 of 100 (Routine)
Arlington Six Flags	United States	Record daily precipitation	40.6 mm (1.6 in)	33 of 100 (Routine)
Cuauhtemoc	Mexico	Record daily precipitation	38.4 mm (1.5 in)	32 of 100 (Routine)
Canby	United States	Record high maximum temperature	37.8 C (100.0 F)	32 of 100 (Routine)
Chasm Falls	United States	Record daily precipitation	44.2 mm (1.7 in)	32 of 100 (Routine)
Grayland	United States	Record daily precipitation	39.4 mm (1.6 in)	32 of 100 (Routine)
Toolangi (Mount St Leonard Dpi	Australia	Record daily precipitation	26.6 mm (1.0 in)	31 of 100 (Routine)
Lunawanna	Australia	Record daily precipitation	28.0 mm (1.1 in)	31 of 100 (Routine)
Coffeeville	United States	Record daily precipitation	46.7 mm (1.8 in)	31 of 100 (Routine)
Chinook	United States	Record high maximum temperature	38.9 C (102.0 F)	31 of 100 (Routine)
Fairfield	United States	Record high minimum temperature	18.9 C (66.0 F)	31 of 100 (Routine)
Yamagata	Japan	Record daily precipitation	71.9 mm (2.8 in)	30 of 100 (Routine)
Iguala (Smn)	Mexico	Record high minimum temperature	22.8 C (73.0 F)	30 of 100 (Routine)
Santiago Ixcuintla	Mexico	Record high maximum temperature	39.4 C (102.9 F)	30 of 100 (Routine)
San Pedro	Mexico	Record daily precipitation	59.9 mm (2.4 in)	30 of 100 (Routine)
Woodstock	United States	Record high minimum temperature	23.3 C (73.9 F)	30 of 100 (Routine)

Counts by Type and Timescale

848 records

Records set or tied on 31 August 1991 by type: Highest daily maximum 302, Lowest daily maximum 29, Highest daily minimum 240, Lowest daily minimum 50, Heaviest daily rainfall 227.

Records on 31 August 1991 by type
Record type	Records
Highest daily maximum	302
Lowest daily maximum	29
Highest daily minimum	240
Lowest daily minimum	50
Heaviest daily rainfall	227
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 August 1991 by timescale: all-time 2, monthly 12, daily 834.

How Much Records Were Beaten By

626 broken records

Margins by which the 626 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 55.5. Ties are not counted.

Top 20 by Significance

31 August 1991

Top 20 records on 31 August 1991 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 August 1991	Premaydena Hatchery, AU	daily rain	50.8 mm (2.0 in)	33.8 mm (1.3 in)	73 years	70 of 100 (Major)
31 August 1991	Woodbridge, AU	daily rain	39.0 mm (1.5 in)	30.9 mm (1.2 in)	56 years	62 of 100 (Major)
31 August 1991	Kettering (Saddle Road), AU	daily rain	42.6 mm (1.7 in)	21.0 mm (0.8 in)	73 years	61 of 100 (Major)
31 August 1991	Eaglehawk Neck (Jetty Road), AU	daily rain	36.4 mm (1.4 in)	25.5 mm (1.0 in)	56 years	58 of 100 (Notable)
31 August 1991	Bohodukhiv, UA	monthly rain	99.1 mm (3.9 in)	41.6 mm (1.6 in)	18 years	58 of 100 (Notable)
31 August 1991	Nubeena, AU	daily rain	39.0 mm (1.5 in)	19.2 mm (0.8 in)	72 years	54 of 100 (Notable)
31 August 1991	Plain Dealing, US	daily rain	82.3 mm (3.2 in)	45.5 mm (1.8 in)	49 years	52 of 100 (Notable)
31 August 1991	Stornoway Airport, GB	daily high max	22.8 C (73.0 F)	2.2 C (4.0 F)	110 years	50 of 100 (Notable)
31 August 1991	Ft Kent, US	daily rain	45.0 mm (1.8 in)	13.2 mm (0.5 in)	97 years	49 of 100 (Notable)
31 August 1991	Hachinohe, JP	daily rain	93.0 mm (3.7 in)	55.5 mm (2.2 in)	36 years	48 of 100 (Notable)
31 August 1991	Walterboro 1 SW, US	daily high min	26.1 C (79.0 F)	2.8 C (5.0 F)	84 years	47 of 100 (Notable)
31 August 1991	Canton 5 W, US	daily rain	57.9 mm (2.3 in)	49.0 mm (1.9 in)	41 years	47 of 100 (Notable)
31 August 1991	De Ridder, US	daily rain	61.0 mm (2.4 in)	29.2 mm (1.1 in)	70 years	46 of 100 (Notable)
31 August 1991	Walnut Grove, US	daily rain	76.2 mm (3.0 in)	45.5 mm (1.8 in)	36 years	46 of 100 (Notable)
31 August 1991	Bream Creek (Stroud), AU	daily rain	41.0 mm (1.6 in)	18.9 mm (0.7 in)	56 years	45 of 100 (Notable)
31 August 1991	Barcelona/Aeropuerto, ES	all-time high min	24.2 C (75.6 F)	0.2 C (0.4 F)	64 years	45 of 100 (Notable)
31 August 1991	Nerchinskij Zavod, RU	daily rain	39.7 mm (1.6 in)	12.4 mm (0.5 in)	78 years	44 of 100 (Notable)
31 August 1991	Tisul, RU	daily rain	33.6 mm (1.3 in)	18.9 mm (0.7 in)	28 years	43 of 100 (Notable)
31 August 1991	Levendale, AU	daily rain	28.8 mm (1.1 in)	10.3 mm (0.4 in)	72 years	41 of 100 (Notable)
31 August 1991	Cotton Valley 5 NNW, US	daily rain	68.6 mm (2.7 in)	43.7 mm (1.7 in)	16 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

1796 to 1991

Records set or tied on this calendar date in each year from 1796 to 1991. 1991 had 848 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 1991-08-31: 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 2026-10-18. Last revised 18 October 2026 (2026-10-18).

Histogram of margins by which records were beaten on 31 August 1991
Margin	Records
0 to 10	536
10 to 20	53
20 to 30	19
30 to 40	10
40 to 50	7
50 to 60	1