Weather Records on 28 August 2018

1,110 weather records were set or tied worldwide on 28 August 2018. Highest significance: Caledonia, US.

Key Facts for 28 August 2018

On 28 August 2018, 1,110 weather records were set or tied at long-record stations worldwide.
549 were record highs and 365 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 21 monthly and 1,084 daily.
Caledonia set an all-time record daily precipitation of 205.7 mm (8.1 in) on 28 August 2018.
Across 161 earlier years (1800 to 2026) the same calendar date averaged 453 records.

Record Map

1,110 stations

1,110 station records on 28 August 2018 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 28 August 2018: highest significance records shown on the map
Station	Country	Type	Value	Significance
Caledonia	United States	Record daily precipitation	205.7 mm (8.1 in)	75 of 100 (Major)
Princeville Rch 1117	United States	Record daily precipitation	214.6 mm (8.4 in)	73 of 100 (Major)
Mauston 1 SE	United States	Record daily precipitation	206.8 mm (8.1 in)	72 of 100 (Major)
Westby 3ENE	United States	Record daily precipitation	253.5 mm (10.0 in)	69 of 100 (Major)
La Farge	United States	Record daily precipitation	120.7 mm (4.8 in)	68 of 100 (Major)
Kapalama 773	United States	Record daily precipitation	129.5 mm (5.1 in)	68 of 100 (Major)
Puhi 1013	United States	Record daily precipitation	58.4 mm (2.3 in)	68 of 100 (Major)
Idjevan	Armenia	Record daily precipitation	99.1 mm (3.9 in)	67 of 100 (Major)
Ontario 3E	United States	Record daily precipitation	245.4 mm (9.7 in)	67 of 100 (Major)
Koloko Rsvr 1137	United States	Record daily precipitation	134.9 mm (5.3 in)	67 of 100 (Major)
UNIV of Hawaii 713	United States	Record daily precipitation	45.7 mm (1.8 in)	66 of 100 (Major)
Bailing-Miao	China	Record daily precipitation	53.3 mm (2.1 in)	63 of 100 (Major)
Beretania Pump STN 705	United States	Record daily precipitation	53.3 mm (2.1 in)	63 of 100 (Major)
Waialae-Kahala 715	United States	Record daily precipitation	38.6 mm (1.5 in)	63 of 100 (Major)
Garah Post Office	Australia	Record daily precipitation	56.0 mm (2.2 in)	62 of 100 (Major)
Jarud Qi	China	Record daily precipitation	105.7 mm (4.2 in)	62 of 100 (Major)
La Crescent Dam 7	United States	Record daily precipitation	81.0 mm (3.2 in)	62 of 100 (Major)
Mora	United States	Record daily precipitation	77.7 mm (3.1 in)	58 of 100 (Notable)
Larissa	Greece	Record daily precipitation	42.7 mm (1.7 in)	57 of 100 (Notable)
Fond du Lac Wwtp	United States	Record daily precipitation	70.1 mm (2.8 in)	56 of 100 (Notable)
Punchbowl Crater 709	United States	Record daily precipitation	65.0 mm (2.6 in)	56 of 100 (Notable)
Decorah	United States	Record daily precipitation	74.9 mm (2.9 in)	55 of 100 (Notable)
Ironwood	United States	Record daily precipitation	71.9 mm (2.8 in)	55 of 100 (Notable)
Kalihi Rsch Site 777	United States	Record daily precipitation	198.4 mm (7.8 in)	55 of 100 (Notable)
Montello Wwtp	United States	Record daily precipitation	149.6 mm (5.9 in)	54 of 100 (Notable)
Palolo Vly 718	United States	Record daily precipitation	111.8 mm (4.4 in)	54 of 100 (Notable)
Adel	United States	Record low maximum temperature	3.3 C (37.9 F)	53 of 100 (Notable)
Onahama	Japan	Record daily precipitation	117.1 mm (4.6 in)	52 of 100 (Notable)
Goldbutte 7 N	United States	Record daily precipitation	38.4 mm (1.5 in)	51 of 100 (Notable)
Valentine	United States	Record low maximum temperature	13.3 C (55.9 F)	51 of 100 (Notable)
Glendive	United States	Record low maximum temperature	12.8 C (55.0 F)	50 of 100 (Notable)
Makaweli 965	United States	Record low maximum temperature	26.7 C (80.1 F)	50 of 100 (Notable)
Mauna Loa 511	United States	Record daily precipitation	43.7 mm (1.7 in)	50 of 100 (Notable)
Jomo Kenyatta Intl	Kenya	Record daily precipitation	51.1 mm (2.0 in)	49 of 100 (Notable)
Wisconsin Dells Wwtp	United States	Record daily precipitation	98.3 mm (3.9 in)	49 of 100 (Notable)
Mauna Loa Slope Obs 39	United States	Record daily precipitation	40.1 mm (1.6 in)	49 of 100 (Notable)
Rock Is L&D 15	United States	Record daily precipitation	71.1 mm (2.8 in)	48 of 100 (Notable)
Sparta	United States	Record daily precipitation	107.2 mm (4.2 in)	48 of 100 (Notable)
Spirit Lake	United States	Record daily precipitation	39.4 mm (1.6 in)	47 of 100 (Notable)
Brydeswood STN 985	United States	Record daily precipitation	51.8 mm (2.0 in)	47 of 100 (Notable)
Ashland Exp Farm	United States	Record daily precipitation	63.5 mm (2.5 in)	46 of 100 (Notable)
Beaver Dam Wwtp	United States	Record daily precipitation	76.2 mm (3.0 in)	46 of 100 (Notable)
Grand Rapids	United States	Record daily precipitation	82.6 mm (3.3 in)	46 of 100 (Notable)
Ferron	United States	Record high minimum temperature	20.0 C (68.0 F)	45 of 100 (Notable)
Oconto 4 W	United States	Record daily precipitation	44.5 mm (1.8 in)	45 of 100 (Notable)
Decatur Wtp	United States	Record high minimum temperature	24.4 C (75.9 F)	44 of 100 (Notable)
Mt Ayr	United States	Record high minimum temperature	23.9 C (75.0 F)	44 of 100 (Notable)
Maryville 2E	United States	Record high minimum temperature	23.9 C (75.0 F)	44 of 100 (Notable)
Wibaux 2 E	United States	Record low maximum temperature	11.1 C (52.0 F)	44 of 100 (Notable)
Willow City	United States	Record low maximum temperature	13.9 C (57.0 F)	44 of 100 (Notable)
Waihee 837.5	United States	Record daily precipitation	72.9 mm (2.9 in)	44 of 100 (Notable)
Casey	United States	Record high minimum temperature	23.9 C (75.0 F)	43 of 100 (Notable)
Holton	United States	Record high minimum temperature	25.6 C (78.1 F)	43 of 100 (Notable)
Helena 1 SSE	United States	Record high minimum temperature	25.0 C (77.0 F)	43 of 100 (Notable)
Portage Wwtp	United States	Record daily precipitation	50.8 mm (2.0 in)	43 of 100 (Notable)
Aiea Hts 764.6	United States	Record daily precipitation	80.5 mm (3.2 in)	43 of 100 (Notable)
Fukuyama	Japan	Record daily precipitation	58.9 mm (2.3 in)	42 of 100 (Notable)
Cooperstown	United States	Record high minimum temperature	20.6 C (69.1 F)	42 of 100 (Notable)
Hemlock	United States	Record high minimum temperature	23.9 C (75.0 F)	42 of 100 (Notable)
Mc Henry 3W	United States	Record low maximum temperature	14.4 C (57.9 F)	42 of 100 (Notable)

Counts by Type and Timescale

1,110 records

Records set or tied on 28 August 2018 by type: Highest daily maximum 92, Lowest daily maximum 230, Highest daily minimum 457, Lowest daily minimum 135, Heaviest daily rainfall 194, Heaviest daily snowfall 1, Deepest snow cover 1.

Records on 28 August 2018 by type
Record type	Records
Highest daily maximum	92
Lowest daily maximum	230
Highest daily minimum	457
Lowest daily minimum	135
Heaviest daily rainfall	194
Heaviest daily snowfall	1
Deepest snow cover	1

Records on 28 August 2018 by timescale: all-time 5, monthly 21, daily 1,084.

How Much Records Were Beaten By

819 broken records

Margins by which the 819 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 165.4. Ties are not counted.

Top 20 by Significance

28 August 2018

Top 20 records on 28 August 2018 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 August 2018	Caledonia, US	all-time rain	205.7 mm (8.1 in)	38.1 mm (1.5 in)	67 years	75 of 100 (Major)
28 August 2018	Princeville Rch 1117, US	monthly rain	214.6 mm (8.4 in)	110.2 mm (4.3 in)	51 years	73 of 100 (Major)
28 August 2018	Mauston 1 SE, US	all-time rain	206.8 mm (8.1 in)	74.2 mm (2.9 in)	8 years	72 of 100 (Major)
28 August 2018	Westby 3ENE, US	all-time rain	253.5 mm (10.0 in)	71.4 mm (2.8 in)	11 years	69 of 100 (Major)
28 August 2018	La Farge, US	daily rain	120.7 mm (4.8 in)	109.0 mm (4.3 in)	72 years	68 of 100 (Major)
28 August 2018	Kapalama 773, US	monthly rain	129.5 mm (5.1 in)	30.4 mm (1.2 in)	51 years	68 of 100 (Major)
28 August 2018	Puhi 1013, US	daily rain	58.4 mm (2.3 in)	44.9 mm (1.8 in)	69 years	68 of 100 (Major)
28 August 2018	Idjevan, AM	daily rain	99.1 mm (3.9 in)	91.1 mm (3.6 in)	60 years	67 of 100 (Major)
28 August 2018	Ontario 3E, US	all-time rain	245.4 mm (9.7 in)	90.5 mm (3.6 in)	10 years	67 of 100 (Major)
28 August 2018	Koloko Rsvr 1137, US	daily rain	134.9 mm (5.3 in)	80.3 mm (3.2 in)	69 years	67 of 100 (Major)
28 August 2018	UNIV of Hawaii 713, US	daily rain	45.7 mm (1.8 in)	30.5 mm (1.2 in)	57 years	66 of 100 (Major)
28 August 2018	Bailing-Miao, CN	daily rain	53.3 mm (2.1 in)	34.9 mm (1.4 in)	56 years	63 of 100 (Major)
28 August 2018	Beretania Pump STN 705, US	daily rain	53.3 mm (2.1 in)	43.4 mm (1.7 in)	57 years	63 of 100 (Major)
28 August 2018	Waialae-Kahala 715, US	daily rain	38.6 mm (1.5 in)	21.3 mm (0.8 in)	57 years	63 of 100 (Major)
28 August 2018	Garah Post Office, AU	daily rain	56.0 mm (2.2 in)	35.4 mm (1.4 in)	55 years	62 of 100 (Major)
28 August 2018	Jarud Qi, CN	daily rain	105.7 mm (4.2 in)	57.3 mm (2.3 in)	53 years	62 of 100 (Major)
28 August 2018	La Crescent Dam 7, US	daily rain	81.0 mm (3.2 in)	57.1 mm (2.2 in)	55 years	62 of 100 (Major)
28 August 2018	Mora, US	daily rain	77.7 mm (3.1 in)	37.3 mm (1.5 in)	65 years	58 of 100 (Notable)
28 August 2018	Larissa, GR	daily rain	42.7 mm (1.7 in)	28.7 mm (1.1 in)	51 years	57 of 100 (Notable)
28 August 2018	Fond du Lac Wwtp, US	daily rain	70.1 mm (2.8 in)	21.8 mm (0.9 in)	105 years	56 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 2018

Records set or tied on this calendar date in each year from 1800 to 2018. 2018 had 1,110 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 2018-08-28: 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 2026-10-16 (16 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	770
25 to 50	34
50 to 75	8
75 to 100	4
100 to 125	2
125 to 150	0
150 to 175	1