Weather Records on 28 August 1986

1,995 weather records were set or tied worldwide on 28 August 1986. Highest significance: Hartebeestpoort, ZA.

Key Facts for 28 August 1986

On 28 August 1986, 1,995 weather records were set or tied at long-record stations worldwide.
273 were record highs and 1,275 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 200 monthly and 1,794 daily.
Hartebeestpoort set a monthly record daily precipitation of 56.0 mm (2.2 in) on 28 August 1986.
Across 161 earlier years (1800 to 2026) the same calendar date averaged 447 records.

Record Map

1,995 stations

1,995 station records on 28 August 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 28 August 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hartebeestpoort	South Africa	Record daily precipitation	56.0 mm (2.2 in)	72 of 100 (Major)
Mojave	United States	Record daily precipitation	25.4 mm (1.0 in)	72 of 100 (Major)
Bizana (Bos)	South Africa	Record daily precipitation	90.5 mm (3.6 in)	68 of 100 (Major)
Cleveland	United States	Record daily precipitation	81.8 mm (3.2 in)	65 of 100 (Major)
Flagstaff (Tnk)	South Africa	Record daily precipitation	76.0 mm (3.0 in)	63 of 100 (Major)
Zastron (Tnk)	South Africa	Record daily precipitation	41.0 mm (1.6 in)	63 of 100 (Major)
Batesville	United States	Record daily precipitation	81.3 mm (3.2 in)	62 of 100 (Major)
St Joseph 3 N	United States	Record daily precipitation	75.9 mm (3.0 in)	61 of 100 (Major)
Mqanduli (Tnk)	South Africa	Record daily precipitation	45.5 mm (1.8 in)	58 of 100 (Notable)
Assab	Eritrea	Record daily precipitation	99.0 mm (3.9 in)	57 of 100 (Notable)
Ntsubane (Bos)	South Africa	Record daily precipitation	140.0 mm (5.5 in)	57 of 100 (Notable)
Lewisburg Exp STN	United States	Record daily precipitation	79.2 mm (3.1 in)	57 of 100 (Notable)
Tsolo	South Africa	Record daily precipitation	41.0 mm (1.6 in)	56 of 100 (Notable)
Rome	United States	Record daily precipitation	94.2 mm (3.7 in)	54 of 100 (Notable)
Kloofend	South Africa	Record daily precipitation	121.7 mm (4.8 in)	51 of 100 (Notable)
Klipspruit (Pur)	South Africa	Record daily precipitation	32.0 mm (1.3 in)	51 of 100 (Notable)
Dordrecht - Tnk 14	South Africa	Record daily precipitation	68.0 mm (2.7 in)	50 of 100 (Notable)
Avoca	South Africa	Record daily precipitation	42.0 mm (1.7 in)	50 of 100 (Notable)
Oorsprong-Oos	South Africa	Record daily precipitation	50.0 mm (2.0 in)	50 of 100 (Notable)
Yarrabah Comm Council	Australia	Record daily precipitation	42.6 mm (1.7 in)	49 of 100 (Notable)
Bushy Vales, Margate	South Africa	Record daily precipitation	141.5 mm (5.6 in)	49 of 100 (Notable)
Reitz 36	South Africa	Record daily precipitation	39.0 mm (1.5 in)	49 of 100 (Notable)
Swan Lake	United States	Record daily precipitation	66.5 mm (2.6 in)	49 of 100 (Notable)
Gjerstad I Aust-Agder	Norway	Record daily precipitation	66.3 mm (2.6 in)	48 of 100 (Notable)
Lokenburg	South Africa	Record daily precipitation	27.0 mm (1.1 in)	48 of 100 (Notable)
Papane (Bos)	South Africa	Record daily precipitation	40.0 mm (1.6 in)	48 of 100 (Notable)
Waterville	United States	Record high minimum temperature	20.0 C (68.0 F)	48 of 100 (Notable)
The Cliff	South Africa	Record daily precipitation	40.0 mm (1.6 in)	47 of 100 (Notable)
Port Gibson 1 NE	United States	Record daily precipitation	37.6 mm (1.5 in)	47 of 100 (Notable)
Crane	United States	Record daily precipitation	71.4 mm (2.8 in)	47 of 100 (Notable)
Robert Lee 4WSW	United States	Record daily precipitation	88.4 mm (3.5 in)	47 of 100 (Notable)
Rietfontein (Skl)	South Africa	Record daily precipitation	33.5 mm (1.3 in)	46 of 100 (Notable)
Sparta	United States	Record daily precipitation	82.0 mm (3.2 in)	46 of 100 (Notable)
Baldwin	United States	Record low minimum temperature	-1.7 C (28.9 F)	46 of 100 (Notable)
Kirksville	United States	Record low minimum temperature	4.4 C (39.9 F)	46 of 100 (Notable)
Imperial	United States	Record daily precipitation	62.2 mm (2.4 in)	45 of 100 (Notable)
Weyerhaeuser 1N	United States	Record low minimum temperature	-3.9 C (25.0 F)	45 of 100 (Notable)
Faerder Fyr	Norway	Record daily precipitation	34.4 mm (1.4 in)	44 of 100 (Notable)
Nizhnyaya Pesha	Russia	Record daily precipitation	30.1 mm (1.2 in)	44 of 100 (Notable)
Jamestown	South Africa	Record daily precipitation	43.0 mm (1.7 in)	44 of 100 (Notable)
Amanzamnyama (Bos)	South Africa	Record daily precipitation	47.0 mm (1.9 in)	44 of 100 (Notable)
Leuctra	South Africa	Record daily precipitation	42.0 mm (1.7 in)	44 of 100 (Notable)
Livingston	United States	Record low maximum temperature	20.6 C (69.1 F)	44 of 100 (Notable)
Decatur Wtp	United States	Record low minimum temperature	2.8 C (37.0 F)	44 of 100 (Notable)
Williamstown	United States	Record low minimum temperature	6.1 C (43.0 F)	44 of 100 (Notable)
Oshkosh	United States	Record low maximum temperature	13.9 C (57.0 F)	44 of 100 (Notable)
Arhangelsk	Russia	Record daily precipitation	39.3 mm (1.5 in)	43 of 100 (Notable)
Lady Grey (Pol)	South Africa	Record daily precipitation	31.0 mm (1.2 in)	43 of 100 (Notable)
Brunswick	United States	Record low minimum temperature	5.6 C (42.1 F)	43 of 100 (Notable)
Lexington 3E	United States	Record low minimum temperature	5.0 C (41.0 F)	43 of 100 (Notable)
St Charles Elm Pt	United States	Record low minimum temperature	6.1 C (43.0 F)	43 of 100 (Notable)
Springview 2NW	United States	Record low maximum temperature	15.6 C (60.1 F)	43 of 100 (Notable)
Portsmouth-Sciotoville	United States	Record low minimum temperature	7.2 C (45.0 F)	43 of 100 (Notable)
Lexington Bluegrass AP	United States	Record low maximum temperature	18.9 C (66.0 F)	43 of 100 (Notable)
Wilo (Bos)	South Africa	Record daily precipitation	72.0 mm (2.8 in)	42 of 100 (Notable)
Funnystone	South Africa	Record daily precipitation	34.0 mm (1.3 in)	42 of 100 (Notable)
Senekal (Agr)	South Africa	Record daily precipitation	35.0 mm (1.4 in)	42 of 100 (Notable)
Walnut Canyon Nm	United States	Record daily precipitation	51.6 mm (2.0 in)	42 of 100 (Notable)
Carrollton	United States	Record low maximum temperature	22.8 C (73.0 F)	42 of 100 (Notable)
Sioux Ctr 2 SE	United States	Record low minimum temperature	2.8 C (37.0 F)	42 of 100 (Notable)

Counts by Type and Timescale

1,995 records

Records set or tied on 28 August 1986 by type: Highest daily maximum 97, Lowest daily maximum 702, Highest daily minimum 176, Lowest daily minimum 573, Heaviest daily rainfall 447.

Records on 28 August 1986 by type
Record type	Records
Highest daily maximum	97
Lowest daily maximum	702
Highest daily minimum	176
Lowest daily minimum	573
Heaviest daily rainfall	447
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 28 August 1986 by timescale: all-time 1, monthly 200, daily 1,794.

How Much Records Were Beaten By

1,555 broken records

Margins by which the 1,555 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 109.0. Ties are not counted.

Top 20 by Significance

28 August 1986

Top 20 records on 28 August 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 August 1986	Hartebeestpoort, ZA	monthly rain	56.0 mm (2.2 in)	33.1 mm (1.3 in)	56 years	72 of 100 (Major)
28 August 1986	Mojave, US	daily rain	25.4 mm (1.0 in)	25.4 mm (1.0 in)	80 years	72 of 100 (Major)
28 August 1986	Bizana (Bos), ZA	monthly rain	90.5 mm (3.6 in)	33.3 mm (1.3 in)	68 years	68 of 100 (Major)
28 August 1986	Cleveland, US	daily rain	81.8 mm (3.2 in)	57.7 mm (2.3 in)	69 years	65 of 100 (Major)
28 August 1986	Flagstaff (Tnk), ZA	daily rain	76.0 mm (3.0 in)	58.2 mm (2.3 in)	51 years	63 of 100 (Major)
28 August 1986	Zastron (Tnk), ZA	daily rain	41.0 mm (1.6 in)	33.4 mm (1.3 in)	67 years	63 of 100 (Major)
28 August 1986	Batesville, US	daily rain	81.3 mm (3.2 in)	64.5 mm (2.5 in)	44 years	62 of 100 (Major)
28 August 1986	St Joseph 3 N, US	daily rain	75.9 mm (3.0 in)	53.8 mm (2.1 in)	44 years	61 of 100 (Major)
28 August 1986	Mqanduli (Tnk), ZA	daily rain	45.5 mm (1.8 in)	23.7 mm (0.9 in)	93 years	58 of 100 (Notable)
28 August 1986	Assab, ER	all-time rain	99.0 mm (3.9 in)	24.5 mm (1.0 in)	32 years	57 of 100 (Notable)
28 August 1986	Ntsubane (Bos), ZA	daily rain	140.0 mm (5.5 in)	109.0 mm (4.3 in)	36 years	57 of 100 (Notable)
28 August 1986	Lewisburg Exp STN, US	daily rain	79.2 mm (3.1 in)	36.5 mm (1.4 in)	79 years	57 of 100 (Notable)
28 August 1986	Tsolo, ZA	daily rain	41.0 mm (1.6 in)	35.9 mm (1.4 in)	48 years	56 of 100 (Notable)
28 August 1986	Rome, US	daily rain	94.2 mm (3.7 in)	42.1 mm (1.7 in)	45 years	54 of 100 (Notable)
28 August 1986	Kloofend, ZA	daily rain	121.7 mm (4.8 in)	91.7 mm (3.6 in)	12 years	51 of 100 (Notable)
28 August 1986	Klipspruit (Pur), ZA	monthly rain	32.0 mm (1.3 in)	6.6 mm (0.26 in)	77 years	51 of 100 (Notable)
28 August 1986	Dordrecht - Tnk 14, ZA	monthly rain	68.0 mm (2.7 in)	12.6 mm (0.5 in)	56 years	50 of 100 (Notable)
28 August 1986	Avoca, ZA	daily rain	42.0 mm (1.7 in)	16.1 mm (0.6 in)	93 years	50 of 100 (Notable)
28 August 1986	Oorsprong-Oos, ZA	monthly rain	50.0 mm (2.0 in)	14.4 mm (0.6 in)	52 years	50 of 100 (Notable)
28 August 1986	Yarrabah Comm Council, AU	daily rain	42.6 mm (1.7 in)	14.7 mm (0.6 in)	77 years	49 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

1800 to 1986

Records set or tied on this calendar date in each year from 1800 to 1986. 1986 had 1,995 records.

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

Records on 08-28 in each year
Year	Records
1800	1
1807	4
1811	1
1814	2
1817	1
1835	1
1849	1
1850	1
1851	1
1854	1
1856	1
1858	1
1863	1
1864	4
1865	3
1870	2
1873	1
1874	1
1875	1
1876	1
1877	2
1880	3
1881	4
1884	1
1885	2
1886	1
1887	1
1889	1
1890	4
1891	1
1892	2
1893	3
1894	2
1895	4
1896	9
1897	3
1901	12
1902	2
1903	16
1904	13
1905	23
1906	12
1907	2
1908	10
1909	20
1910	5
1911	34
1912	44
1913	17
1914	40
1915	43
1916	141
1917	49
1918	43
1919	39
1920	80
1921	47
1922	60
1923	79
1924	207
1925	165
1926	241
1927	239
1928	252
1929	162
1930	152
1931	306
1932	383
1933	376
1934	346
1935	545
1936	531
1937	545
1938	325
1939	296
1940	368
1941	485
1942	461
1943	366
1944	592
1945	368
1946	495
1947	288
1948	1,133
1949	442
1950	492
1951	694
1952	447
1953	762
1954	499
1955	413
1956	327
1957	545
1958	288
1959	552
1960	470
1961	371
1962	469
1963	464
1964	556
1965	635
1966	338
1967	701
1968	864
1969	1,089
1970	617
1971	695
1972	651
1973	1,211
1974	816
1975	507
1976	505
1977	757
1978	774
1979	838
1980	424
1981	1,120
1982	1,009
1983	748
1984	886
1985	528
1986	1,995
1987	1,260
1988	953
1989	911
1990	983
1991	968
1992	1,814
1993	1,061
1994	688
1995	954
1996	1,109
1997	1,082
1998	1,415
1999	905
2000	1,028
2001	1,042
2002	903
2003	792
2004	966
2005	731
2006	1,244
2007	788
2008	889
2009	928
2010	914
2011	1,748
2012	682
2013	693
2014	590
2015	660
2016	812
2017	1,060
2018	1,110
2019	943
2020	1,008
2021	459
2022	388
2023	899
2024	862
2025	871
2026	873

Download the Data

Data for records on 1986-08-28: 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	1,470
20 to 40	67
40 to 60	14
60 to 80	1
80 to 100	2
100 to 120	1