Weather Records on 27 August 1991

813 weather records were set or tied worldwide on 27 August 1991. Highest significance: Shelton, US.

Key Facts for 27 August 1991

On 27 August 1991, 813 weather records were set or tied at long-record stations worldwide.
474 were record highs and 155 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 18 monthly and 795 daily.
Shelton set a daily record precipitation of 40.9 mm (1.6 in) on 27 August 1991.
Across 165 earlier years (1807 to 2026) the same calendar date averaged 435 records.

Record Map

813 stations

813 station records on 27 August 1991 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 August 1991: highest significance records shown on the map
Station	Country	Type	Value	Significance
Shelton	United States	Record daily precipitation	40.9 mm (1.6 in)	59 of 100 (Notable)
Randleman	United States	Record daily precipitation	87.1 mm (3.4 in)	56 of 100 (Notable)
Matehuala (Smn)	Mexico	Record daily precipitation	62.0 mm (2.4 in)	52 of 100 (Notable)
Maysville	United States	Record daily precipitation	72.6 mm (2.9 in)	52 of 100 (Notable)
Walterboro 1 SW	United States	Record high minimum temperature	27.2 C (81.0 F)	50 of 100 (Notable)
Grapeview 3 SW	United States	Record daily precipitation	37.6 mm (1.5 in)	48 of 100 (Notable)
El Palmito	Mexico	Record daily precipitation	55.4 mm (2.2 in)	47 of 100 (Notable)
Rucker Canyon	United States	Record daily precipitation	39.4 mm (1.6 in)	47 of 100 (Notable)
Agua Buena (Smn)	Mexico	Record daily precipitation	177.8 mm (7.0 in)	45 of 100 (Notable)
Martinsville Fltr Plt	United States	Record daily precipitation	52.6 mm (2.1 in)	45 of 100 (Notable)
Slidell	United States	Record daily precipitation	93.5 mm (3.7 in)	44 of 100 (Notable)
Clearwater	United States	Record daily precipitation	78.2 mm (3.1 in)	44 of 100 (Notable)
Tower 2S	United States	Record high maximum temperature	33.3 C (91.9 F)	42 of 100 (Notable)
Aberdeen 20NNE	United States	Record daily precipitation	54.4 mm (2.1 in)	42 of 100 (Notable)
Elma	United States	Record daily precipitation	34.0 mm (1.3 in)	42 of 100 (Notable)
Yinchuan	China	Record daily precipitation	40.6 mm (1.6 in)	41 of 100 (Notable)
Irapuato	Mexico	Record daily precipitation	62.7 mm (2.5 in)	41 of 100 (Notable)
Perm	Russia	Record daily precipitation	30.1 mm (1.2 in)	41 of 100 (Notable)
Martinsdale 3 NNW	United States	Record high minimum temperature	13.3 C (55.9 F)	41 of 100 (Notable)
Pathfinder Dam	United States	Record high minimum temperature	20.0 C (68.0 F)	41 of 100 (Notable)
La Grange 1N	United States	Record high minimum temperature	22.8 C (73.0 F)	40 of 100 (Notable)
Humacao 2 SSE	Puerto Rico [United States]	Record low minimum temperature	16.7 C (62.1 F)	39 of 100 (Notable)
Puerto de la Concepcion	Mexico	Record daily precipitation	67.3 mm (2.6 in)	38 of 100 (Notable)
Miahuatlan (Smn)	Mexico	Record high maximum temperature	37.8 C (100.0 F)	38 of 100 (Notable)
Walnut Grove	United States	Record daily precipitation	49.5 mm (1.9 in)	38 of 100 (Notable)
Red Springs 1 SE	United States	Record daily precipitation	64.3 mm (2.5 in)	38 of 100 (Notable)
Newman	United States	Record low maximum temperature	26.7 C (80.1 F)	37 of 100 (Notable)
Elgin Water	United States	Record high maximum temperature	33.9 C (93.0 F)	37 of 100 (Notable)
Gettysburg	United States	Record high minimum temperature	21.1 C (70.0 F)	37 of 100 (Notable)
Enosburg Falls	United States	Record high minimum temperature	21.1 C (70.0 F)	37 of 100 (Notable)
Altotonga	Mexico	Record high maximum temperature	28.9 C (84.0 F)	36 of 100 (Notable)
Cedartown	United States	Record high minimum temperature	27.2 C (81.0 F)	36 of 100 (Notable)
Walker	United States	Record high minimum temperature	22.8 C (73.0 F)	36 of 100 (Notable)
New Orleans AP	United States	Record daily precipitation	72.4 mm (2.9 in)	36 of 100 (Notable)
Baton Rouge Metro AP	United States	Record daily precipitation	47.8 mm (1.9 in)	36 of 100 (Notable)
Quitupan	Mexico	Record high maximum temperature	35.0 C (95.0 F)	35 of 100 (Notable)
Mtn View	United States	Record daily precipitation	44.5 mm (1.8 in)	35 of 100 (Notable)
New England	United States	Record high maximum temperature	38.3 C (100.9 F)	35 of 100 (Notable)
Blaine	United States	Record daily precipitation	32.0 mm (1.3 in)	35 of 100 (Notable)
Wauna 3 W	United States	Record daily precipitation	30.5 mm (1.2 in)	35 of 100 (Notable)
Kurgan	Russia	Record high minimum temperature	17.0 C (62.6 F)	34 of 100 (Routine)
Hill City 1 W	United States	Record high minimum temperature	16.7 C (62.1 F)	34 of 100 (Routine)
Fergus Falls	United States	Record high minimum temperature	22.2 C (72.0 F)	34 of 100 (Routine)
Gulfport Naval Ctr	United States	Record daily precipitation	128.0 mm (5.0 in)	34 of 100 (Routine)
Sarapul	Russia	Record daily precipitation	30.8 mm (1.2 in)	33 of 100 (Routine)
Libby 32 SSE	United States	Record low minimum temperature	-1.7 C (28.9 F)	33 of 100 (Routine)
Lake Placid 2 S	United States	Record high minimum temperature	20.0 C (68.0 F)	33 of 100 (Routine)
Dinosaur Nm-Quarry Area	United States	Record high minimum temperature	18.3 C (64.9 F)	33 of 100 (Routine)
Clinton	United States	Record daily precipitation	30.5 mm (1.2 in)	32 of 100 (Routine)
Greers Ferry Dam	United States	Record daily precipitation	44.2 mm (1.7 in)	32 of 100 (Routine)
Hayden	United States	Record high minimum temperature	12.2 C (54.0 F)	32 of 100 (Routine)
Montezuma 2 NW	United States	Record daily precipitation	87.6 mm (3.4 in)	32 of 100 (Routine)
Aberdeen	United States	Record daily precipitation	25.1 mm (1.0 in)	32 of 100 (Routine)
Ocotlan de Morelos	Mexico	Record high minimum temperature	18.9 C (66.0 F)	31 of 100 (Routine)
Cornelia	United States	Record low maximum temperature	21.1 C (70.0 F)	31 of 100 (Routine)
Canyon Ferry Dam	United States	Record high minimum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Faulkton	United States	Record high minimum temperature	22.2 C (72.0 F)	30 of 100 (Routine)
San Diego de Alejandria	Mexico	Record high maximum temperature	35.0 C (95.0 F)	29 of 100 (Routine)
Big Bar 4 E	United States	Record low minimum temperature	3.3 C (37.9 F)	29 of 100 (Routine)
Orland	United States	Record low minimum temperature	8.9 C (48.0 F)	29 of 100 (Routine)

Counts by Type and Timescale

813 records

Records set or tied on 27 August 1991 by type: Highest daily maximum 180, Lowest daily maximum 84, Highest daily minimum 294, Lowest daily minimum 71, Heaviest daily rainfall 184.

Records on 27 August 1991 by type
Record type	Records
Highest daily maximum	180
Lowest daily maximum	84
Highest daily minimum	294
Lowest daily minimum	71
Heaviest daily rainfall	184
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 27 August 1991 by timescale: all-time 0, monthly 18, daily 795.

How Much Records Were Beaten By

576 broken records

Margins by which the 576 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 114.8. Ties are not counted.

Top 20 by Significance

27 August 1991

Top 20 records on 27 August 1991 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 August 1991	Shelton, US	daily rain	40.9 mm (1.6 in)	25.9 mm (1.0 in)	49 years	59 of 100 (Notable)
27 August 1991	Randleman, US	daily rain	87.1 mm (3.4 in)	41.4 mm (1.6 in)	76 years	56 of 100 (Notable)
27 August 1991	Matehuala (Smn), MX	daily rain	62.0 mm (2.4 in)	40.2 mm (1.6 in)	22 years	52 of 100 (Notable)
27 August 1991	Maysville, US	daily rain	72.6 mm (2.9 in)	58.6 mm (2.3 in)	48 years	52 of 100 (Notable)
27 August 1991	Walterboro 1 SW, US	daily high min	27.2 C (81.0 F)	3.3 C (5.9 F)	88 years	50 of 100 (Notable)
27 August 1991	Grapeview 3 SW, US	daily rain	37.6 mm (1.5 in)	11.2 mm (0.4 in)	82 years	48 of 100 (Notable)
27 August 1991	El Palmito, MX	daily rain	55.4 mm (2.2 in)	35.6 mm (1.4 in)	28 years	47 of 100 (Notable)
27 August 1991	Rucker Canyon, US	daily rain	39.4 mm (1.6 in)	26.2 mm (1.0 in)	44 years	47 of 100 (Notable)
27 August 1991	Agua Buena (Smn), MX	daily rain	177.8 mm (7.0 in)	114.8 mm (4.5 in)	12 years	45 of 100 (Notable)
27 August 1991	Martinsville Fltr Plt, US	daily rain	52.6 mm (2.1 in)	34.8 mm (1.4 in)	54 years	45 of 100 (Notable)
27 August 1991	Slidell, US	daily rain	93.5 mm (3.7 in)	64.8 mm (2.6 in)	10 years	44 of 100 (Notable)
27 August 1991	Clearwater, US	daily rain	78.2 mm (3.1 in)	32.0 mm (1.3 in)	24 years	44 of 100 (Notable)
27 August 1991	Tower 2S, US	daily high max	33.3 C (91.9 F)	2.7 C (4.9 F)	90 years	42 of 100 (Notable)
27 August 1991	Aberdeen 20NNE, US	daily rain	54.4 mm (2.1 in)	33.3 mm (1.3 in)	22 years	42 of 100 (Notable)
27 August 1991	Elma, US	daily rain	34.0 mm (1.3 in)	18.0 mm (0.7 in)	16 years	42 of 100 (Notable)
27 August 1991	Yinchuan, CN	daily rain	40.6 mm (1.6 in)	25.3 mm (1.0 in)	29 years	41 of 100 (Notable)
27 August 1991	Irapuato, MX	daily rain	62.7 mm (2.5 in)	16.0 mm (0.6 in)	64 years	41 of 100 (Notable)
27 August 1991	Perm, RU	daily rain	30.1 mm (1.2 in)	4.0 mm (0.16 in)	85 years	41 of 100 (Notable)
27 August 1991	Martinsdale 3 NNW, US	daily high min	13.3 C (55.9 F)	2.2 C (4.0 F)	89 years	41 of 100 (Notable)
27 August 1991	Pathfinder Dam, US	daily high min	20.0 C (68.0 F)	2.8 C (5.0 F)	80 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

1807 to 1991

Records set or tied on this calendar date in each year from 1807 to 1991. 1991 had 813 records.

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

Records on 08-27 in each year
Year	Records
1807	3
1810	1
1811	1
1813	1
1816	1
1827	1
1829	1
1834	1
1846	1
1847	1
1848	1
1854	1
1857	1
1858	1
1859	1
1863	1
1864	3
1865	2
1869	1
1870	1
1871	1
1874	1
1876	1
1877	4
1880	1
1881	2
1882	1
1884	3
1885	2
1886	2
1887	2
1889	1
1890	10
1891	4
1892	1
1894	7
1895	1
1896	4
1899	5
1900	5
1901	6
1902	2
1903	22
1904	4
1905	16
1906	27
1907	9
1908	10
1909	10
1910	6
1911	16
1912	40
1913	10
1914	31
1915	37
1916	106
1917	57
1918	18
1919	78
1920	36
1921	27
1922	52
1923	63
1924	245
1925	102
1926	143
1927	395
1928	197
1929	80
1930	247
1931	205
1932	355
1933	368
1934	249
1935	348
1936	806
1937	679
1938	374
1939	191
1940	468
1941	504
1942	476
1943	581
1944	811
1945	414
1946	345
1947	291
1948	987
1949	475
1950	380
1951	415
1952	402
1953	712
1954	594
1955	485
1956	387
1957	615
1958	213
1959	522
1960	365
1961	365
1962	577
1963	335
1964	400
1965	440
1966	406
1967	887
1968	517
1969	780
1970	1,361
1971	640
1972	722
1973	1,519
1974	722
1975	506
1976	565
1977	793
1978	671
1979	917
1980	478
1981	998
1982	828
1983	823
1984	683
1985	660
1986	1,072
1987	1,356
1988	601
1989	854
1990	761
1991	813
1992	1,657
1993	1,087
1994	696
1995	1,143
1996	968
1997	1,189
1998	1,387
1999	1,258
2000	865
2001	1,304
2002	1,027
2003	916
2004	1,037
2005	733
2006	1,090
2007	958
2008	885
2009	701
2010	1,045
2011	1,518
2012	626
2013	629
2014	582
2015	832
2016	968
2017	838
2018	933
2019	1,013
2020	777
2021	635
2022	470
2023	953
2024	600
2025	1,218
2026	815

Download the Data

Data for records on 1991-08-27: 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	547
20 to 40	23
40 to 60	4
60 to 80	1
80 to 100	0
100 to 120	1