Weather Records on 27 August 1999

1,258 weather records were set or tied worldwide on 27 August 1999. Highest significance: Bowning (Wanganui), AU.

Key Facts for 27 August 1999

On 27 August 1999, 1,258 weather records were set or tied at long-record stations worldwide.
612 were record highs and 132 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 40 monthly and 1,218 daily.
Bowning (Wanganui) set a monthly record daily precipitation of 114.0 mm (4.5 in) on 27 August 1999.
Across 165 earlier years (1807 to 2026) the same calendar date averaged 432 records.

Record Map

1,258 stations

1,258 station records on 27 August 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 August 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bowning (Wanganui)	Australia	Record daily precipitation	114.0 mm (4.5 in)	81 of 100 (Exceptional)
Melbourne Regional Office	Australia	Record daily precipitation	33.4 mm (1.3 in)	76 of 100 (Major)
Prahran (Como House)	Australia	Record daily precipitation	37.8 mm (1.5 in)	70 of 100 (Major)
Duchesne	United States	Record daily precipitation	40.6 mm (1.6 in)	69 of 100 (Major)
Clunes	Australia	Record daily precipitation	38.2 mm (1.5 in)	68 of 100 (Major)
Berrybank	Australia	Record daily precipitation	35.8 mm (1.4 in)	68 of 100 (Major)
Morrl Morrl (Valley View)	Australia	Record daily precipitation	50.4 mm (2.0 in)	67 of 100 (Major)
Coranderrk Badger Weir	Australia	Record daily precipitation	35.1 mm (1.4 in)	67 of 100 (Major)
Toorourrong Reservoir (Toorour	Australia	Record daily precipitation	50.0 mm (2.0 in)	66 of 100 (Major)
Bollon Mary St	Australia	Record daily precipitation	29.0 mm (1.1 in)	65 of 100 (Major)
Hebel Store	Australia	Record daily precipitation	32.4 mm (1.3 in)	65 of 100 (Major)
Shelford	Australia	Record daily precipitation	26.0 mm (1.0 in)	64 of 100 (Major)
Lovely Banks (Reservoir)	Australia	Record daily precipitation	50.6 mm (2.0 in)	62 of 100 (Major)
Shepherds Flat	Australia	Record daily precipitation	45.6 mm (1.8 in)	61 of 100 (Major)
Mornington	Australia	Record daily precipitation	45.0 mm (1.8 in)	59 of 100 (Notable)
Wilsons Reservoir	Australia	Record daily precipitation	41.6 mm (1.6 in)	59 of 100 (Notable)
Barkly	Australia	Record daily precipitation	54.2 mm (2.1 in)	57 of 100 (Notable)
Preston Reservoir	Australia	Record daily precipitation	34.2 mm (1.3 in)	56 of 100 (Notable)
Birchip (Woodlands)	Australia	Record daily precipitation	47.4 mm (1.9 in)	55 of 100 (Notable)
Eltham	Australia	Record daily precipitation	33.4 mm (1.3 in)	55 of 100 (Notable)
Goolgowi (Moira St)	Australia	Record daily precipitation	38.8 mm (1.5 in)	54 of 100 (Notable)
Merriwagga (Devon Street)	Australia	Record daily precipitation	41.0 mm (1.6 in)	54 of 100 (Notable)
Warracknabeal (Ailsa)	Australia	Record daily precipitation	35.0 mm (1.4 in)	54 of 100 (Notable)
Bannockburn	Australia	Record daily precipitation	30.2 mm (1.2 in)	54 of 100 (Notable)
Tullaroop Reservoir	Australia	Record daily precipitation	37.5 mm (1.5 in)	54 of 100 (Notable)
Marre-Sale	Russia	Record daily precipitation	27.4 mm (1.1 in)	53 of 100 (Notable)
Hillston (Hunthawang)	Australia	Record daily precipitation	30.4 mm (1.2 in)	52 of 100 (Notable)
Ventnor (Oaklands)	Australia	Record daily precipitation	34.2 mm (1.3 in)	52 of 100 (Notable)
Toolangi (Mount St Leonard Dpi	Australia	Record daily precipitation	53.2 mm (2.1 in)	52 of 100 (Notable)
Balliang East	Australia	Record daily precipitation	37.0 mm (1.5 in)	52 of 100 (Notable)
Maryborough	Australia	Record daily precipitation	33.4 mm (1.3 in)	52 of 100 (Notable)
Whittlesea	Australia	Record daily precipitation	31.6 mm (1.2 in)	51 of 100 (Notable)
Scottsville 6SE	United States	Record daily precipitation	89.9 mm (3.5 in)	51 of 100 (Notable)
Beulah	Australia	Record daily precipitation	40.0 mm (1.6 in)	50 of 100 (Notable)
Navarre	Australia	Record daily precipitation	45.8 mm (1.8 in)	50 of 100 (Notable)
Rupanyup (Post Office)	Australia	Record daily precipitation	34.8 mm (1.4 in)	50 of 100 (Notable)
Natte Yallock	Australia	Record daily precipitation	53.4 mm (2.1 in)	50 of 100 (Notable)
Belmont	Australia	Record daily precipitation	47.0 mm (1.9 in)	50 of 100 (Notable)
Geelong Golf Club	Australia	Record daily precipitation	37.0 mm (1.5 in)	50 of 100 (Notable)
Talbot (Post Office)	Australia	Record daily precipitation	46.0 mm (1.8 in)	50 of 100 (Notable)
Trawalla	Australia	Record daily precipitation	27.0 mm (1.1 in)	50 of 100 (Notable)
Coolabah (Branglebar)	Australia	Record daily precipitation	35.8 mm (1.4 in)	49 of 100 (Notable)
Canowindra (Canowindra Street)	Australia	Record daily precipitation	27.0 mm (1.1 in)	49 of 100 (Notable)
Binya Post Office	Australia	Record daily precipitation	27.0 mm (1.1 in)	49 of 100 (Notable)
Dimboola	Australia	Record daily precipitation	25.0 mm (1.0 in)	49 of 100 (Notable)
Bartow 1SE	United States	Record high minimum temperature	25.6 C (78.1 F)	49 of 100 (Notable)
Carthage Wtp	United States	Record daily precipitation	103.1 mm (4.1 in)	49 of 100 (Notable)
Wellington (Agrowplow)	Australia	Record daily precipitation	28.8 mm (1.1 in)	48 of 100 (Notable)
Warracknabeal (Earlstan)	Australia	Record daily precipitation	32.4 mm (1.3 in)	48 of 100 (Notable)
Violet Town	Australia	Record daily precipitation	45.6 mm (1.8 in)	48 of 100 (Notable)
Alexandra (Post Office)	Australia	Record daily precipitation	26.2 mm (1.0 in)	48 of 100 (Notable)
Cortland	United States	Record high minimum temperature	27.2 C (81.0 F)	48 of 100 (Notable)
Goodooga (Mogila)	Australia	Record daily precipitation	40.4 mm (1.6 in)	47 of 100 (Notable)
Avoca (Post Office)	Australia	Record daily precipitation	50.0 mm (2.0 in)	47 of 100 (Notable)
Outtrim	Australia	Record daily precipitation	25.0 mm (1.0 in)	47 of 100 (Notable)
Donaldsonville 4 SW	United States	Record high minimum temperature	25.6 C (78.1 F)	47 of 100 (Notable)
Farmerville	United States	Record high maximum temperature	40.0 C (104.0 F)	47 of 100 (Notable)
Nymagee (Pyramid)	Australia	Record daily precipitation	26.8 mm (1.1 in)	46 of 100 (Notable)
Wollar (Barrigan St)	Australia	Record daily precipitation	30.0 mm (1.2 in)	46 of 100 (Notable)
Holbrook (Narrawa)	Australia	Record daily precipitation	42.2 mm (1.7 in)	46 of 100 (Notable)

Counts by Type and Timescale

1,258 records

Records set or tied on 27 August 1999 by type: Highest daily maximum 237, Lowest daily maximum 78, Highest daily minimum 375, Lowest daily minimum 54, Heaviest daily rainfall 514.

Records on 27 August 1999 by type
Record type	Records
Highest daily maximum	237
Lowest daily maximum	78
Highest daily minimum	375
Lowest daily minimum	54
Heaviest daily rainfall	514
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 27 August 1999 by timescale: all-time 0, monthly 40, daily 1,218.

How Much Records Were Beaten By

958 broken records

Margins by which the 958 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 70.1. Ties are not counted.

Top 20 by Significance

27 August 1999

Top 20 records on 27 August 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 August 1999	Bowning (Wanganui), AU	monthly rain	114.0 mm (4.5 in)	61.4 mm (2.4 in)	74 years	81 of 100 (Exceptional)
27 August 1999	Melbourne Regional Office, AU	daily rain	33.4 mm (1.3 in)	15.1 mm (0.6 in)	104 years	76 of 100 (Major)
27 August 1999	Prahran (Como House), AU	daily rain	37.8 mm (1.5 in)	13.7 mm (0.5 in)	104 years	70 of 100 (Major)
27 August 1999	Duchesne, US	daily rain	40.6 mm (1.6 in)	25.4 mm (1.0 in)	66 years	69 of 100 (Major)
27 August 1999	Clunes, AU	daily rain	38.2 mm (1.5 in)	15.8 mm (0.6 in)	111 years	68 of 100 (Major)
27 August 1999	Berrybank, AU	daily rain	35.8 mm (1.4 in)	18.0 mm (0.7 in)	62 years	68 of 100 (Major)
27 August 1999	Morrl Morrl (Valley View), AU	daily rain	50.4 mm (2.0 in)	26.5 mm (1.0 in)	62 years	67 of 100 (Major)
27 August 1999	Coranderrk Badger Weir, AU	daily rain	35.1 mm (1.4 in)	19.4 mm (0.8 in)	102 years	67 of 100 (Major)
27 August 1999	Toorourrong Reservoir (Toorour, AU	daily rain	50.0 mm (2.0 in)	14.9 mm (0.6 in)	102 years	66 of 100 (Major)
27 August 1999	Bollon Mary St, AU	daily rain	29.0 mm (1.1 in)	22.1 mm (0.9 in)	111 years	65 of 100 (Major)
27 August 1999	Hebel Store, AU	daily rain	32.4 mm (1.3 in)	22.0 mm (0.9 in)	96 years	65 of 100 (Major)
27 August 1999	Shelford, AU	daily rain	26.0 mm (1.0 in)	10.5 mm (0.4 in)	103 years	64 of 100 (Major)
27 August 1999	Lovely Banks (Reservoir), AU	monthly rain	50.6 mm (2.0 in)	11.7 mm (0.5 in)	34 years	62 of 100 (Major)
27 August 1999	Shepherds Flat, AU	daily rain	45.6 mm (1.8 in)	23.8 mm (0.9 in)	60 years	61 of 100 (Major)
27 August 1999	Mornington, AU	monthly rain	45.0 mm (1.8 in)	6.1 mm (0.24 in)	90 years	59 of 100 (Notable)
27 August 1999	Wilsons Reservoir, AU	daily rain	41.6 mm (1.6 in)	14.2 mm (0.6 in)	82 years	59 of 100 (Notable)
27 August 1999	Barkly, AU	monthly rain	54.2 mm (2.1 in)	6.4 mm (0.25 in)	90 years	57 of 100 (Notable)
27 August 1999	Preston Reservoir, AU	daily rain	34.2 mm (1.3 in)	20.2 mm (0.8 in)	24 years	56 of 100 (Notable)
27 August 1999	Birchip (Woodlands), AU	monthly rain	47.4 mm (1.9 in)	5.7 mm (0.22 in)	79 years	55 of 100 (Notable)
27 August 1999	Eltham, AU	daily rain	33.4 mm (1.3 in)	18.2 mm (0.7 in)	24 years	55 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 1999

Records set or tied on this calendar date in each year from 1807 to 1999. 1999 had 1,258 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 1999-08-27: 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 10	807
10 to 20	113
20 to 30	32
30 to 40	3
40 to 50	0
50 to 60	0
60 to 70	2
70 to 80	1