Weather Records on 28 August 2009

928 weather records were set or tied worldwide on 28 August 2009. Highest significance: Armagh, GB.

Key Facts for 28 August 2009

On 28 August 2009, 928 weather records were set or tied at long-record stations worldwide.
496 were record highs and 205 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 52 monthly and 875 daily.
Armagh set a daily record precipitation of 60.0 mm (2.4 in) on 28 August 2009.
Across 161 earlier years (1800 to 2026) the same calendar date averaged 454 records.

Record Map

928 stations

928 station records on 28 August 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 28 August 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Armagh	United Kingdom	Record daily precipitation	60.0 mm (2.4 in)	79 of 100 (Major)
Colfax	United States	Record daily precipitation	106.7 mm (4.2 in)	65 of 100 (Major)
Evergreen	United States	Record low maximum temperature	22.2 C (72.0 F)	59 of 100 (Notable)
Taylorsville 2SW	United States	Record daily precipitation	88.9 mm (3.5 in)	57 of 100 (Notable)
Pineland	United States	Record daily precipitation	147.3 mm (5.8 in)	56 of 100 (Notable)
Greenville	United States	Record daily precipitation	80.3 mm (3.2 in)	54 of 100 (Notable)
Columbus Metro AP	United States	Record daily precipitation	56.1 mm (2.2 in)	54 of 100 (Notable)
Linguere	Senegal	Record daily precipitation	136.9 mm (5.4 in)	53 of 100 (Notable)
Kankakee Wwtp	United States	Record daily precipitation	71.1 mm (2.8 in)	53 of 100 (Notable)
Biri	Norway	Record daily precipitation	33.6 mm (1.3 in)	52 of 100 (Notable)
Zhumadian	China	Record daily precipitation	160.7 mm (6.3 in)	51 of 100 (Notable)
Rockford 3 ESE	United States	Record daily precipitation	100.3 mm (3.9 in)	51 of 100 (Notable)
Aberdeen Phillips Fld	United States	Record daily precipitation	184.2 mm (7.3 in)	51 of 100 (Notable)
San Nicolas Is	United States	Record high minimum temperature	21.7 C (71.1 F)	51 of 100 (Notable)
Leiden	Netherlands	Record daily precipitation	50.2 mm (2.0 in)	50 of 100 (Notable)
Thomasville	United States	Record low maximum temperature	23.9 C (75.0 F)	50 of 100 (Notable)
Cordele	United States	Record daily precipitation	53.3 mm (2.1 in)	50 of 100 (Notable)
Ola	Russia	Record daily precipitation	68.3 mm (2.7 in)	49 of 100 (Notable)
Fairhope 2 NE	United States	Record low maximum temperature	24.4 C (75.9 F)	49 of 100 (Notable)
San Luis Obispo Poly	United States	Record high minimum temperature	20.0 C (68.0 F)	49 of 100 (Notable)
Santa Rosa	United States	Record high minimum temperature	18.9 C (66.0 F)	49 of 100 (Notable)
Fukaura	Japan	Record daily precipitation	117.6 mm (4.6 in)	48 of 100 (Notable)
Vanersborg	Sweden	Record daily precipitation	28.8 mm (1.1 in)	48 of 100 (Notable)
Havana	United States	Record daily precipitation	76.2 mm (3.0 in)	48 of 100 (Notable)
Phuket Airport	Thailand	Record daily precipitation	139.7 mm (5.5 in)	47 of 100 (Notable)
Center	United States	Record daily precipitation	84.8 mm (3.3 in)	46 of 100 (Notable)
Presa Golondrinas	Mexico	Record daily precipitation	63.0 mm (2.5 in)	45 of 100 (Notable)
Albany 3 SE	United States	Record daily precipitation	46.2 mm (1.8 in)	45 of 100 (Notable)
Denmark	Australia	Record daily precipitation	39.8 mm (1.6 in)	44 of 100 (Notable)
Quitman 2 NW	United States	Record low maximum temperature	23.9 C (75.0 F)	44 of 100 (Notable)
Thomasville 7 NE	United States	Record low maximum temperature	23.9 C (75.0 F)	44 of 100 (Notable)
Champaign 3S	United States	Record daily precipitation	67.8 mm (2.7 in)	44 of 100 (Notable)
Belle Plaine	United States	Record low maximum temperature	17.8 C (64.0 F)	44 of 100 (Notable)
Odessa	United States	Record high minimum temperature	19.4 C (66.9 F)	43 of 100 (Notable)
Kislovodsk	Russia	Record low minimum temperature	5.5 C (41.9 F)	42 of 100 (Notable)
Potlatch 3 NNE	United States	Record high maximum temperature	37.8 C (100.0 F)	42 of 100 (Notable)
Winterset 4N	United States	Record low maximum temperature	17.8 C (64.0 F)	42 of 100 (Notable)
Purcellville	United States	Record daily precipitation	66.0 mm (2.6 in)	42 of 100 (Notable)
Nordby (Fano)	Denmark	Record high minimum temperature	18.0 C (64.4 F)	41 of 100 (Notable)
Svaneholm	Sweden	Record daily precipitation	31.5 mm (1.2 in)	41 of 100 (Notable)
Half Moon Bay	United States	Record high maximum temperature	28.9 C (84.0 F)	41 of 100 (Notable)
Greenfield	United States	Record low maximum temperature	18.3 C (64.9 F)	41 of 100 (Notable)
Ashland 3 ENE	United States	Record daily precipitation	53.6 mm (2.1 in)	40 of 100 (Notable)
Maquoketa	United States	Record low maximum temperature	17.8 C (64.0 F)	40 of 100 (Notable)
Grand Coteau	United States	Record daily precipitation	43.2 mm (1.7 in)	40 of 100 (Notable)
Petersburg 1	United States	Record high minimum temperature	14.4 C (57.9 F)	40 of 100 (Notable)
Knoxville	United States	Record low maximum temperature	18.9 C (66.0 F)	39 of 100 (Notable)
Gonzalez	Mexico	Record low minimum temperature	17.8 C (64.0 F)	38 of 100 (Notable)
Gladstone L/D 18	United States	Record daily precipitation	41.9 mm (1.6 in)	38 of 100 (Notable)
Knox Wwtp	United States	Record daily precipitation	33.0 mm (1.3 in)	38 of 100 (Notable)
Pasadena	United States	Record high maximum temperature	40.0 C (104.0 F)	37 of 100 (Notable)
Morgan 5 NW	United States	Record daily precipitation	59.7 mm (2.4 in)	37 of 100 (Notable)
Peru	United States	Record daily precipitation	76.7 mm (3.0 in)	37 of 100 (Notable)
Salzburg	Austria	Record daily precipitation	33.0 mm (1.3 in)	36 of 100 (Notable)
Ramos Arizpe (Smn)	Mexico	Record high maximum temperature	36.7 C (98.1 F)	36 of 100 (Notable)
Brewton 3 ENE	United States	Record low maximum temperature	23.3 C (73.9 F)	36 of 100 (Notable)
Donnellson	United States	Record daily precipitation	76.5 mm (3.0 in)	36 of 100 (Notable)
Colville	United States	Record high maximum temperature	38.9 C (102.0 F)	36 of 100 (Notable)
Tanlajas	Mexico	Record high maximum temperature	43.9 C (111.0 F)	35 of 100 (Notable)
U C L A	United States	Record high maximum temperature	35.0 C (95.0 F)	35 of 100 (Notable)

Counts by Type and Timescale

928 records

Records set or tied on 28 August 2009 by type: Highest daily maximum 311, Lowest daily maximum 121, Highest daily minimum 185, Lowest daily minimum 84, Heaviest daily rainfall 227.

Records on 28 August 2009 by type
Record type	Records
Highest daily maximum	311
Lowest daily maximum	121
Highest daily minimum	185
Lowest daily minimum	84
Heaviest daily rainfall	227
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 28 August 2009 by timescale: all-time 1, monthly 52, daily 875.

How Much Records Were Beaten By

651 broken records

Margins by which the 651 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 128.8. Ties are not counted.

Top 20 by Significance

28 August 2009

Top 20 records on 28 August 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 August 2009	Armagh, GB	daily rain	60.0 mm (2.4 in)	31.3 mm (1.2 in)	96 years	79 of 100 (Major)
28 August 2009	Colfax, US	daily rain	106.7 mm (4.2 in)	74.4 mm (2.9 in)	59 years	65 of 100 (Major)
28 August 2009	Evergreen, US	daily low max	22.2 C (72.0 F)	5.0 C (9.0 F)	116 years	59 of 100 (Notable)
28 August 2009	Taylorsville 2SW, US	daily rain	88.9 mm (3.5 in)	61.0 mm (2.4 in)	26 years	57 of 100 (Notable)
28 August 2009	Pineland, US	monthly rain	147.3 mm (5.8 in)	58.1 mm (2.3 in)	8 years	56 of 100 (Notable)
28 August 2009	Greenville, US	daily rain	80.3 mm (3.2 in)	34.3 mm (1.4 in)	71 years	54 of 100 (Notable)
28 August 2009	Columbus Metro AP, US	daily rain	56.1 mm (2.2 in)	48.0 mm (1.9 in)	50 years	54 of 100 (Notable)
28 August 2009	Linguere, SN	monthly rain	136.9 mm (5.4 in)	29.7 mm (1.2 in)	64 years	53 of 100 (Notable)
28 August 2009	Kankakee Wwtp, US	daily rain	71.1 mm (2.8 in)	53.1 mm (2.1 in)	26 years	53 of 100 (Notable)
28 August 2009	Biri, NO	daily rain	33.6 mm (1.3 in)	10.7 mm (0.4 in)	108 years	52 of 100 (Notable)
28 August 2009	Zhumadian, CN	daily rain	160.7 mm (6.3 in)	128.8 mm (5.1 in)	20 years	51 of 100 (Notable)
28 August 2009	Rockford 3 ESE, US	daily rain	100.3 mm (3.9 in)	78.2 mm (3.1 in)	23 years	51 of 100 (Notable)
28 August 2009	Aberdeen Phillips Fld, US	monthly rain	184.2 mm (7.3 in)	19.4 mm (0.8 in)	75 years	51 of 100 (Notable)
28 August 2009	San Nicolas Is, US	daily high min	21.7 C (71.1 F)	4.5 C (8.1 F)	60 years	51 of 100 (Notable)
28 August 2009	Leiden, NL	daily rain	50.2 mm (2.0 in)	31.8 mm (1.3 in)	12 years	50 of 100 (Notable)
28 August 2009	Thomasville, US	daily low max	23.9 C (75.0 F)	2.8 C (5.0 F)	108 years	50 of 100 (Notable)
28 August 2009	Cordele, US	daily rain	53.3 mm (2.1 in)	26.4 mm (1.0 in)	68 years	50 of 100 (Notable)
28 August 2009	Ola, RU	daily rain	68.3 mm (2.7 in)	35.3 mm (1.4 in)	16 years	49 of 100 (Notable)
28 August 2009	Fairhope 2 NE, US	daily low max	24.4 C (75.9 F)	3.4 C (6.1 F)	80 years	49 of 100 (Notable)
28 August 2009	San Luis Obispo Poly, US	daily high min	20.0 C (68.0 F)	3.9 C (7.0 F)	60 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 2009

Records set or tied on this calendar date in each year from 1800 to 2009. 2009 had 928 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 2009-08-28: 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	602
20 to 40	37
40 to 60	6
60 to 80	5
80 to 100	0
100 to 120	0
120 to 140	1