Weather Records on 27 August 1981

998 weather records were set or tied worldwide on 27 August 1981. Highest significance: Allegan 5NE, US.

Key Facts for 27 August 1981

On 27 August 1981, 998 weather records were set or tied at long-record stations worldwide.
481 were record highs and 195 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 38 monthly and 957 daily.
Allegan 5NE set a daily record precipitation of 89.4 mm (3.5 in) on 27 August 1981.
Across 165 earlier years (1807 to 2026) the same calendar date averaged 434 records.

Record Map

998 stations

998 station records on 27 August 1981 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 August 1981: highest significance records shown on the map
Station	Country	Type	Value	Significance
Allegan 5NE	United States	Record daily precipitation	89.4 mm (3.5 in)	58 of 100 (Notable)
Mason City	United States	Record daily precipitation	97.3 mm (3.8 in)	54 of 100 (Notable)
Frasers	South Africa	Record daily precipitation	90.0 mm (3.5 in)	53 of 100 (Notable)
Port Washington	United States	Record daily precipitation	62.2 mm (2.4 in)	53 of 100 (Notable)
Cape St. Francis	South Africa	Record daily precipitation	55.0 mm (2.2 in)	52 of 100 (Notable)
Buffalo Twr	United States	Record daily precipitation	65.0 mm (2.6 in)	52 of 100 (Notable)
Villa Cuauhtemoc	Mexico	Record daily precipitation	199.9 mm (7.9 in)	51 of 100 (Notable)
Tula	Russia	Record daily precipitation	40.6 mm (1.6 in)	51 of 100 (Notable)
De Rust (Pol)	South Africa	Record daily precipitation	40.0 mm (1.6 in)	49 of 100 (Notable)
Cotton Valley 5 NNW	United States	Record daily precipitation	59.7 mm (2.4 in)	49 of 100 (Notable)
Glorieta	United States	Record daily precipitation	62.5 mm (2.5 in)	49 of 100 (Notable)
Zacualtipan (Smn)	Mexico	Record daily precipitation	111.3 mm (4.4 in)	48 of 100 (Notable)
Tlanchinol (Smn)	Mexico	Record daily precipitation	212.9 mm (8.4 in)	48 of 100 (Notable)
Atlin	Canada	Record daily precipitation	33.0 mm (1.3 in)	46 of 100 (Notable)
Cointzio	Mexico	Record daily precipitation	47.8 mm (1.9 in)	46 of 100 (Notable)
Witelsbos (Bos)	South Africa	Record daily precipitation	89.0 mm (3.5 in)	46 of 100 (Notable)
Caledonia	United States	Record daily precipitation	79.5 mm (3.1 in)	46 of 100 (Notable)
Chicontepec de Tejeda (Smn)	Mexico	Record daily precipitation	200.2 mm (7.9 in)	45 of 100 (Notable)
Tantima	Mexico	Record daily precipitation	207.8 mm (8.2 in)	45 of 100 (Notable)
Mozajsk	Russia	Record daily precipitation	40.7 mm (1.6 in)	45 of 100 (Notable)
Nagasaki	Japan	Record daily precipitation	157.0 mm (6.2 in)	44 of 100 (Notable)
Atyrau	Kazakhstan	Record high minimum temperature	24.3 C (75.7 F)	44 of 100 (Notable)
Nashville 1 E	United States	Record daily precipitation	78.7 mm (3.1 in)	43 of 100 (Notable)
Lake Maloya	United States	Record daily precipitation	36.8 mm (1.4 in)	43 of 100 (Notable)
Whitewater Wwtp	United States	Record daily precipitation	70.1 mm (2.8 in)	43 of 100 (Notable)
Van Staadens (Rsv)	South Africa	Record daily precipitation	56.4 mm (2.2 in)	42 of 100 (Notable)
Chester	United States	Record high minimum temperature	17.2 C (63.0 F)	41 of 100 (Notable)
Vancouver 4 NNE	United States	Record low minimum temperature	4.4 C (39.9 F)	41 of 100 (Notable)
Stoughton Wwtp	United States	Record daily precipitation	45.2 mm (1.8 in)	41 of 100 (Notable)
Redlands	United States	Record high maximum temperature	43.3 C (109.9 F)	40 of 100 (Notable)
Germantown Wastewater Utility	United States	Record daily precipitation	57.7 mm (2.3 in)	40 of 100 (Notable)
Kaneohe Mauka 781	United States	Record high minimum temperature	27.8 C (82.0 F)	40 of 100 (Notable)
Lafayette Purdue UNIV AP	United States	Record daily precipitation	62.5 mm (2.5 in)	40 of 100 (Notable)
Talisman I	Mexico	Record low maximum temperature	26.1 C (79.0 F)	39 of 100 (Notable)
Medora 1 S	United States	Record daily precipitation	48.3 mm (1.9 in)	39 of 100 (Notable)
Bozeman Montana State UNIV	United States	Record high minimum temperature	16.1 C (61.0 F)	39 of 100 (Notable)
Fort Vermilion Cda	Canada	Record high minimum temperature	19.5 C (67.1 F)	38 of 100 (Notable)
Lichtentanne	Germany	Record daily precipitation	29.3 mm (1.2 in)	38 of 100 (Notable)
Frontera Hidalgo	Mexico	Record low maximum temperature	26.7 C (80.1 F)	38 of 100 (Notable)
Tver	Russia	Record daily precipitation	38.0 mm (1.5 in)	38 of 100 (Notable)
Ekaterinburg	Russia	Record high maximum temperature	32.0 C (89.6 F)	38 of 100 (Notable)
Casa Grande Nm	United States	Record high minimum temperature	28.3 C (82.9 F)	38 of 100 (Notable)
Koran	United States	Record daily precipitation	52.1 mm (2.1 in)	38 of 100 (Notable)
Mazapa	Mexico	Record high minimum temperature	13.9 C (57.0 F)	37 of 100 (Notable)
Deland 1 SSE	United States	Record low maximum temperature	28.3 C (82.9 F)	37 of 100 (Notable)
Waseca S Rsch & Outreach Ctr	United States	Record daily precipitation	55.9 mm (2.2 in)	37 of 100 (Notable)
Sonora	United States	Record daily precipitation	30.0 mm (1.2 in)	37 of 100 (Notable)
Sion	Canada	Record high minimum temperature	18.5 C (65.3 F)	36 of 100 (Notable)
Ft Smith Wtp	United States	Record daily precipitation	45.7 mm (1.8 in)	36 of 100 (Notable)
Emmetsburg	United States	Record daily precipitation	38.1 mm (1.5 in)	36 of 100 (Notable)
Sheboygan	United States	Record daily precipitation	43.4 mm (1.7 in)	36 of 100 (Notable)
Barkerville	Canada	Record high minimum temperature	12.0 C (53.6 F)	35 of 100 (Notable)
Syktyvkar	Russia	Record high maximum temperature	29.3 C (84.7 F)	35 of 100 (Notable)
Swellendam (Tnk)	South Africa	Record daily precipitation	48.0 mm (1.9 in)	35 of 100 (Notable)
Humansdorp (Pol)	South Africa	Record daily precipitation	55.5 mm (2.2 in)	35 of 100 (Notable)
Yorba Linda	United States	Record high maximum temperature	41.7 C (107.1 F)	35 of 100 (Notable)
Subiaco	United States	Record daily precipitation	44.2 mm (1.7 in)	34 of 100 (Routine)
Fruita	United States	Record high minimum temperature	20.0 C (68.0 F)	34 of 100 (Routine)
Red Bud 2 S	United States	Record daily precipitation	49.8 mm (2.0 in)	34 of 100 (Routine)
Medicine Hat A	Canada	Record high minimum temperature	21.0 C (69.8 F)	33 of 100 (Routine)

Counts by Type and Timescale

998 records

Records set or tied on 27 August 1981 by type: Highest daily maximum 273, Lowest daily maximum 134, Highest daily minimum 208, Lowest daily minimum 61, Heaviest daily rainfall 321, Heaviest daily snowfall 1.

Records on 27 August 1981 by type
Record type	Records
Highest daily maximum	273
Lowest daily maximum	134
Highest daily minimum	208
Lowest daily minimum	61
Heaviest daily rainfall	321
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 27 August 1981 by timescale: all-time 3, monthly 38, daily 957.

How Much Records Were Beaten By

795 broken records

Margins by which the 795 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 185.4. Ties are not counted.

Top 20 by Significance

27 August 1981

Top 20 records on 27 August 1981 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 August 1981	Allegan 5NE, US	daily rain	89.4 mm (3.5 in)	44.9 mm (1.8 in)	60 years	58 of 100 (Notable)
27 August 1981	Mason City, US	daily rain	97.3 mm (3.8 in)	57.2 mm (2.3 in)	44 years	54 of 100 (Notable)
27 August 1981	Frasers, ZA	daily rain	90.0 mm (3.5 in)	59.0 mm (2.3 in)	28 years	53 of 100 (Notable)
27 August 1981	Port Washington, US	daily rain	62.2 mm (2.4 in)	25.4 mm (1.0 in)	85 years	53 of 100 (Notable)
27 August 1981	Cape St. Francis, ZA	daily rain	55.0 mm (2.2 in)	32.0 mm (1.3 in)	38 years	52 of 100 (Notable)
27 August 1981	Buffalo Twr, US	daily rain	65.0 mm (2.6 in)	64.5 mm (2.5 in)	31 years	52 of 100 (Notable)
27 August 1981	Villa Cuauhtemoc, MX	daily rain	199.9 mm (7.9 in)	185.4 mm (7.3 in)	28 years	51 of 100 (Notable)
27 August 1981	Tula, RU	daily rain	40.6 mm (1.6 in)	28.1 mm (1.1 in)	28 years	51 of 100 (Notable)
27 August 1981	De Rust (Pol), ZA	daily rain	40.0 mm (1.6 in)	19.7 mm (0.8 in)	48 years	49 of 100 (Notable)
27 August 1981	Cotton Valley 5 NNW, US	daily rain	59.7 mm (2.4 in)	51.8 mm (2.0 in)	22 years	49 of 100 (Notable)
27 August 1981	Glorieta, US	daily rain	62.5 mm (2.5 in)	44.2 mm (1.7 in)	12 years	49 of 100 (Notable)
27 August 1981	Zacualtipan (Smn), MX	daily rain	111.3 mm (4.4 in)	62.5 mm (2.5 in)	14 years	48 of 100 (Notable)
27 August 1981	Tlanchinol (Smn), MX	daily rain	212.9 mm (8.4 in)	127.6 mm (5.0 in)	14 years	48 of 100 (Notable)
27 August 1981	Atlin, CA	monthly rain	33.0 mm (1.3 in)	2.5 mm (0.10 in)	76 years	46 of 100 (Notable)
27 August 1981	Cointzio, MX	daily rain	47.8 mm (1.9 in)	26.5 mm (1.0 in)	24 years	46 of 100 (Notable)
27 August 1981	Witelsbos (Bos), ZA	daily rain	89.0 mm (3.5 in)	46.3 mm (1.8 in)	48 years	46 of 100 (Notable)
27 August 1981	Caledonia, US	daily rain	79.5 mm (3.1 in)	22.3 mm (0.9 in)	78 years	46 of 100 (Notable)
27 August 1981	Chicontepec de Tejeda (Smn), MX	daily rain	200.2 mm (7.9 in)	146.9 mm (5.8 in)	8 years	45 of 100 (Notable)
27 August 1981	Tantima, MX	daily rain	207.8 mm (8.2 in)	123.0 mm (4.8 in)	8 years	45 of 100 (Notable)
27 August 1981	Mozajsk, RU	daily rain	40.7 mm (1.6 in)	28.1 mm (1.1 in)	20 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

1807 to 1981

Records set or tied on this calendar date in each year from 1807 to 1981. 1981 had 998 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 1981-08-27: 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 25	749
25 to 50	35
50 to 75	6
75 to 100	1
100 to 125	1
125 to 150	2
150 to 175	0
175 to 200	1