Weather Records on 15 August 1991

778 weather records were set or tied worldwide on 15 August 1991. Highest significance: Waddamana Field Study Centre, AU.

Key Facts for 15 August 1991

On 15 August 1991, 778 weather records were set or tied at long-record stations worldwide.
284 were record highs and 276 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 34 monthly and 744 daily.
Waddamana Field Study Centre set a daily record precipitation of 35.0 mm (1.4 in) on 15 August 1991.
Across 168 earlier years (1793 to 2026) the same calendar date averaged 453 records.

Record Map

778 stations

778 station records on 15 August 1991 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 August 1991: highest significance records shown on the map
Station	Country	Type	Value	Significance
Waddamana Field Study Centre	Australia	Record daily precipitation	35.0 mm (1.4 in)	59 of 100 (Notable)
Brenham	United States	Record daily precipitation	53.1 mm (2.1 in)	58 of 100 (Notable)
Bushy Park (Bushy Park Estates	Australia	Record daily precipitation	27.0 mm (1.1 in)	57 of 100 (Notable)
Lenah Valley (Augusta Road)	Australia	Record daily precipitation	31.8 mm (1.3 in)	55 of 100 (Notable)
Waratah (Mount Road)	Australia	Record daily precipitation	69.4 mm (2.7 in)	54 of 100 (Notable)
Apsley (Parki)	Australia	Record daily precipitation	29.6 mm (1.2 in)	53 of 100 (Notable)
Glenorchy (Glenorchy Reservoir	Australia	Record daily precipitation	45.4 mm (1.8 in)	51 of 100 (Notable)
Natchitoches	United States	Record low maximum temperature	23.3 C (73.9 F)	50 of 100 (Notable)
Douglas (Bisbee) Intl AP	United States	Record daily precipitation	49.5 mm (1.9 in)	50 of 100 (Notable)
Ouse (Millbrook)	Australia	Record daily precipitation	38.8 mm (1.5 in)	49 of 100 (Notable)
Alto 5 SW	United States	Record daily precipitation	75.7 mm (3.0 in)	49 of 100 (Notable)
Marshall	United States	Record low maximum temperature	23.3 C (73.9 F)	49 of 100 (Notable)
Melton Mowbray (Lovely Banks)	Australia	Record daily precipitation	28.4 mm (1.1 in)	48 of 100 (Notable)
Temixco	Mexico	Record high maximum temperature	36.7 C (98.1 F)	47 of 100 (Notable)
Liman	Russia	Record daily precipitation	37.7 mm (1.5 in)	47 of 100 (Notable)
W Pt	United States	Record low maximum temperature	22.2 C (72.0 F)	47 of 100 (Notable)
Plain Dealing	United States	Record low maximum temperature	22.2 C (72.0 F)	47 of 100 (Notable)
Steamboat Springs	United States	Record daily precipitation	25.9 mm (1.0 in)	46 of 100 (Notable)
Winnfield 3 N	United States	Record low maximum temperature	26.7 C (80.1 F)	46 of 100 (Notable)
Beulah 1 W	United States	Record daily precipitation	31.2 mm (1.2 in)	45 of 100 (Notable)
Grapevine Dam	United States	Record low maximum temperature	23.9 C (75.0 F)	44 of 100 (Notable)
Wayatinah Power Station	Australia	Record daily precipitation	58.0 mm (2.3 in)	43 of 100 (Notable)
Minden	United States	Record low maximum temperature	23.3 C (73.9 F)	42 of 100 (Notable)
Dublin 2SE	United States	Record low maximum temperature	23.3 C (73.9 F)	42 of 100 (Notable)
Hobart (Ellerslie Road)	Australia	Record daily precipitation	26.8 mm (1.1 in)	40 of 100 (Notable)
Grove (Comparison)	Australia	Record daily precipitation	36.0 mm (1.4 in)	40 of 100 (Notable)
Monclova (Dge)	Mexico	Record low maximum temperature	21.7 C (71.1 F)	40 of 100 (Notable)
Experiment	United States	Record low maximum temperature	20.6 C (69.1 F)	40 of 100 (Notable)
Donaldsonville 4 SW	United States	Record low maximum temperature	28.3 C (82.9 F)	40 of 100 (Notable)
Leesville	United States	Record low maximum temperature	24.4 C (75.9 F)	40 of 100 (Notable)
Daytona Beach Intl AP	United States	Record daily precipitation	68.6 mm (2.7 in)	40 of 100 (Notable)
Snug Primary School	Australia	Record daily precipitation	38.0 mm (1.5 in)	39 of 100 (Notable)
Quitupan	Mexico	Record high maximum temperature	33.9 C (93.0 F)	39 of 100 (Notable)
Hawkinsville	United States	Record low maximum temperature	26.7 C (80.1 F)	39 of 100 (Notable)
Melstone	United States	Record daily precipitation	32.5 mm (1.3 in)	39 of 100 (Notable)
Eastland	United States	Record low maximum temperature	23.3 C (73.9 F)	39 of 100 (Notable)
Bothwell (Cluny)	Australia	Record daily precipitation	36.8 mm (1.4 in)	38 of 100 (Notable)
Tavda	Russia	Record daily precipitation	43.8 mm (1.7 in)	38 of 100 (Notable)
Snug Plains (Cataract Falls)	Australia	Record daily precipitation	35.8 mm (1.4 in)	37 of 100 (Notable)
Greenwood	United States	Record low maximum temperature	22.8 C (73.0 F)	37 of 100 (Notable)
Corsicana	United States	Record low maximum temperature	25.6 C (78.1 F)	37 of 100 (Notable)
Mexia	United States	Record low minimum temperature	14.4 C (57.9 F)	37 of 100 (Notable)
Hampshire (Neena Road)	Australia	Record daily precipitation	35.4 mm (1.4 in)	36 of 100 (Notable)
Ulan-Ude	Russia	Record high minimum temperature	16.6 C (61.9 F)	36 of 100 (Notable)
Lake City	United States	Record high minimum temperature	11.1 C (52.0 F)	36 of 100 (Notable)
Calhoun 2 N	United States	Record low maximum temperature	22.8 C (73.0 F)	36 of 100 (Notable)
Highlands	United States	Record low maximum temperature	16.1 C (61.0 F)	36 of 100 (Notable)
Taylor	United States	Record daily precipitation	51.1 mm (2.0 in)	36 of 100 (Notable)
Colebrook (the Meadows)	Australia	Record daily precipitation	27.4 mm (1.1 in)	35 of 100 (Notable)
Tarraleah Village	Australia	Record daily precipitation	44.0 mm (1.7 in)	35 of 100 (Notable)
Guildford Junction	Australia	Record daily precipitation	35.8 mm (1.4 in)	35 of 100 (Notable)
Tuusula Hyryla	Finland	Record daily precipitation	30.4 mm (1.2 in)	35 of 100 (Notable)
Rock Mills	United States	Record low maximum temperature	23.3 C (73.9 F)	35 of 100 (Notable)
Burlington Fire STN #5	United States	Record daily precipitation	47.0 mm (1.9 in)	35 of 100 (Notable)
Greenville	United States	Record low maximum temperature	25.6 C (78.1 F)	35 of 100 (Notable)
Cando 1E	United States	Record daily precipitation	37.8 mm (1.5 in)	35 of 100 (Notable)
Tahoe City	United States	Record daily precipitation	40.6 mm (1.6 in)	34 of 100 (Routine)
Haskell	United States	Record low maximum temperature	21.7 C (71.1 F)	34 of 100 (Routine)
Buenos Aires Observ	Argentina	Record high minimum temperature	17.6 C (63.7 F)	33 of 100 (Routine)
Victoria Valley (Glenrowan)	Australia	Record daily precipitation	50.8 mm (2.0 in)	33 of 100 (Routine)

Counts by Type and Timescale

778 records

Records set or tied on 15 August 1991 by type: Highest daily maximum 128, Lowest daily maximum 200, Highest daily minimum 156, Lowest daily minimum 76, Heaviest daily rainfall 218.

Records on 15 August 1991 by type
Record type	Records
Highest daily maximum	128
Lowest daily maximum	200
Highest daily minimum	156
Lowest daily minimum	76
Heaviest daily rainfall	218
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 15 August 1991 by timescale: all-time 0, monthly 34, daily 744.

How Much Records Were Beaten By

595 broken records

Margins by which the 595 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 67.3. Ties are not counted.

Top 20 by Significance

15 August 1991

Top 20 records on 15 August 1991 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 August 1991	Waddamana Field Study Centre, AU	daily rain	35.0 mm (1.4 in)	19.8 mm (0.8 in)	64 years	59 of 100 (Notable)
15 August 1991	Brenham, US	daily rain	53.1 mm (2.1 in)	39.1 mm (1.5 in)	84 years	58 of 100 (Notable)
15 August 1991	Bushy Park (Bushy Park Estates, AU	daily rain	27.0 mm (1.1 in)	14.0 mm (0.6 in)	42 years	57 of 100 (Notable)
15 August 1991	Lenah Valley (Augusta Road), AU	daily rain	31.8 mm (1.3 in)	16.8 mm (0.7 in)	60 years	55 of 100 (Notable)
15 August 1991	Waratah (Mount Road), AU	daily rain	69.4 mm (2.7 in)	30.5 mm (1.2 in)	56 years	54 of 100 (Notable)
15 August 1991	Apsley (Parki), AU	daily rain	29.6 mm (1.2 in)	15.4 mm (0.6 in)	60 years	53 of 100 (Notable)
15 August 1991	Glenorchy (Glenorchy Reservoir, AU	daily rain	45.4 mm (1.8 in)	34.0 mm (1.3 in)	25 years	51 of 100 (Notable)
15 August 1991	Natchitoches, US	monthly low max	23.3 C (73.9 F)	0.6 C (1.1 F)	97 years	50 of 100 (Notable)
15 August 1991	Douglas (Bisbee) Intl AP, US	daily rain	49.5 mm (1.9 in)	30.2 mm (1.2 in)	30 years	50 of 100 (Notable)
15 August 1991	Ouse (Millbrook), AU	monthly rain	38.8 mm (1.5 in)	9.6 mm (0.38 in)	32 years	49 of 100 (Notable)
15 August 1991	Alto 5 SW, US	daily rain	75.7 mm (3.0 in)	67.3 mm (2.6 in)	13 years	49 of 100 (Notable)
15 August 1991	Marshall, US	daily low max	23.3 C (73.9 F)	6.1 C (11.0 F)	70 years	49 of 100 (Notable)
15 August 1991	Melton Mowbray (Lovely Banks), AU	daily rain	28.4 mm (1.1 in)	11.1 mm (0.4 in)	60 years	48 of 100 (Notable)
15 August 1991	Temixco, MX	daily high max	36.7 C (98.1 F)	6.1 C (11.0 F)	18 years	47 of 100 (Notable)
15 August 1991	Liman, RU	monthly rain	37.7 mm (1.5 in)	11.2 mm (0.4 in)	33 years	47 of 100 (Notable)
15 August 1991	W Pt, US	daily low max	22.2 C (72.0 F)	5.0 C (9.0 F)	60 years	47 of 100 (Notable)
15 August 1991	Plain Dealing, US	daily low max	22.2 C (72.0 F)	4.5 C (8.1 F)	76 years	47 of 100 (Notable)
15 August 1991	Steamboat Springs, US	daily rain	25.9 mm (1.0 in)	16.0 mm (0.6 in)	10 years	46 of 100 (Notable)
15 August 1991	Winnfield 3 N, US	daily low max	26.7 C (80.1 F)	2.2 C (4.0 F)	97 years	46 of 100 (Notable)
15 August 1991	Beulah 1 W, US	daily rain	31.2 mm (1.2 in)	20.5 mm (0.8 in)	46 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

1793 to 1991

Records set or tied on this calendar date in each year from 1793 to 1991. 1991 had 778 records.

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

Records on 08-15 in each year
Year	Records
1793	2
1802	1
1805	1
1812	1
1821	1
1838	2
1839	1
1841	1
1844	1
1845	3
1852	1
1854	1
1856	1
1858	1
1861	3
1867	1
1868	2
1869	1
1873	2
1875	1
1876	2
1877	1
1878	1
1879	1
1880	3
1881	2
1882	2
1883	1
1884	2
1885	3
1886	1
1887	1
1888	3
1890	2
1891	2
1892	3
1893	3
1895	1
1896	9
1897	3
1898	1
1899	2
1900	6
1901	5
1902	10
1903	5
1904	17
1905	26
1906	8
1907	14
1908	15
1909	30
1910	16
1911	26
1912	34
1913	42
1914	11
1915	26
1916	223
1917	32
1918	23
1919	22
1920	59
1921	55
1922	86
1923	116
1924	220
1925	91
1926	115
1927	223
1928	271
1929	586
1930	274
1931	351
1932	368
1933	268
1934	992
1935	414
1936	867
1937	574
1938	681
1939	450
1940	372
1941	289
1942	377
1943	426
1944	610
1945	433
1946	285
1947	559
1948	366
1949	559
1950	317
1951	597
1952	596
1953	449
1954	481
1955	539
1956	390
1957	355
1958	1,092
1959	515
1960	417
1961	704
1962	1,052
1963	972
1964	1,185
1965	535
1966	340
1967	687
1968	1,002
1969	583
1970	382
1971	899
1972	613
1973	499
1974	512
1975	490
1976	1,345
1977	550
1978	841
1979	1,788
1980	745
1981	588
1982	479
1983	955
1984	622
1985	915
1986	1,283
1987	1,098
1988	1,479
1989	495
1990	758
1991	778
1992	1,638
1993	831
1994	1,073
1995	1,298
1996	929
1997	927
1998	861
1999	956
2000	932
2001	1,254
2002	1,307
2003	1,248
2004	1,424
2005	1,067
2006	923
2007	1,317
2008	964
2009	1,038
2010	1,622
2011	770
2012	654
2013	711
2014	583
2015	759
2016	707
2017	532
2018	328
2019	435
2020	1,327
2021	900
2022	692
2023	1,414
2024	729
2025	772
2026	975

Download the Data

Data for records on 1991-08-15: 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	524
10 to 20	47
20 to 30	13
30 to 40	9
40 to 50	1
50 to 60	0
60 to 70	1