Weather Records on 15 August 2018

328 weather records were set or tied worldwide on 15 August 2018. Highest significance: Pulaski, US.

Key Facts for 15 August 2018

On 15 August 2018, 328 weather records were set or tied at long-record stations worldwide.
167 were record highs and 53 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 9 monthly and 315 daily.
Pulaski set an all-time record daily precipitation of 160.0 mm (6.3 in) on 15 August 2018.
Across 168 earlier years (1793 to 2026) the same calendar date averaged 455 records.

Record Map

328 stations

328 station records on 15 August 2018 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 August 2018: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pulaski	United States	Record daily precipitation	160.0 mm (6.3 in)	75 of 100 (Major)
Zakatala	Azerbaijan	Record daily precipitation	99.1 mm (3.9 in)	66 of 100 (Major)
Idjevan	Armenia	Record daily precipitation	99.1 mm (3.9 in)	65 of 100 (Major)
Sherburne	United States	Record daily precipitation	56.4 mm (2.2 in)	61 of 100 (Major)
Ft Smith Rgnl AP	United States	Record daily precipitation	92.2 mm (3.6 in)	61 of 100 (Major)
Castle Rock	United States	Record daily precipitation	31.0 mm (1.2 in)	57 of 100 (Notable)
Wister 3S	United States	Record daily precipitation	144.3 mm (5.7 in)	57 of 100 (Notable)
Sarh	Chad	Record low minimum temperature	16.0 C (60.8 F)	54 of 100 (Notable)
Ershovo	Russia	Record daily precipitation	48.6 mm (1.9 in)	53 of 100 (Notable)
Kozhikode	India	Record daily precipitation	197.1 mm (7.8 in)	50 of 100 (Notable)
Independence	United States	Record daily precipitation	212.6 mm (8.4 in)	50 of 100 (Notable)
Long Flat	United States	Record daily precipitation	40.6 mm (1.6 in)	50 of 100 (Notable)
Norwich	United States	Record daily precipitation	36.3 mm (1.4 in)	49 of 100 (Notable)
Mozajsk	Russia	Record daily precipitation	60.6 mm (2.4 in)	48 of 100 (Notable)
Oregon	United States	Record daily precipitation	71.6 mm (2.8 in)	48 of 100 (Notable)
Towanda 1 S	United States	Record daily precipitation	77.7 mm (3.1 in)	48 of 100 (Notable)
Red Oak	United States	Record daily precipitation	63.2 mm (2.5 in)	47 of 100 (Notable)
Nizhneudinsk	Russia	Record daily precipitation	42.8 mm (1.7 in)	45 of 100 (Notable)
Ferron	United States	Record high minimum temperature	20.6 C (69.1 F)	44 of 100 (Notable)
Iron Mtn-Kingsford Wwtp	United States	Record daily precipitation	66.0 mm (2.6 in)	43 of 100 (Notable)
Thiruvananthapuram	India	Record daily precipitation	138.9 mm (5.5 in)	42 of 100 (Notable)
Longmont 2 ESE	United States	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
Lowville	United States	Record daily precipitation	32.8 mm (1.3 in)	41 of 100 (Notable)
Winnemucca AP	United States	Record high minimum temperature	18.9 C (66.0 F)	41 of 100 (Notable)
Crescent 5WSW	United States	Record daily precipitation	41.9 mm (1.6 in)	40 of 100 (Notable)
Kalingapatam	India	Record daily precipitation	96.0 mm (3.8 in)	39 of 100 (Notable)
Bratsk	Russia	Record daily precipitation	46.3 mm (1.8 in)	39 of 100 (Notable)
Elm Springs 3 ESE	United States	Record low maximum temperature	21.1 C (70.0 F)	39 of 100 (Notable)
Miyako	Japan	Record low maximum temperature	27.3 C (81.1 F)	38 of 100 (Notable)
Vishakhapatnam	India	Record daily precipitation	55.1 mm (2.2 in)	37 of 100 (Notable)
Natural Brg	United States	Record daily precipitation	31.8 mm (1.3 in)	37 of 100 (Notable)
Mound Valley 3 WSW	United States	Record daily precipitation	146.1 mm (5.8 in)	37 of 100 (Notable)
Wisdom	United States	Record low minimum temperature	-4.4 C (24.1 F)	37 of 100 (Notable)
Pohnpei WSO	Federated States of Micronesia	Record low maximum temperature	25.6 C (78.1 F)	36 of 100 (Notable)
Hatanga	Russia	Record high minimum temperature	13.5 C (56.3 F)	36 of 100 (Notable)
Selagoncy	Russia	Record daily precipitation	51.1 mm (2.0 in)	36 of 100 (Notable)
Vanavara	Russia	Record daily precipitation	31.2 mm (1.2 in)	36 of 100 (Notable)
Long Valley Jct	United States	Record daily precipitation	30.5 mm (1.2 in)	36 of 100 (Notable)
Bratsk	Russia	Record low maximum temperature	12.7 C (54.9 F)	35 of 100 (Notable)
Fayetteville Exp STN	United States	Record daily precipitation	46.7 mm (1.8 in)	35 of 100 (Notable)
Waterville	United States	Record low minimum temperature	2.2 C (36.0 F)	35 of 100 (Notable)
Amilcar Cabral Intl	Cape Verde	Record low minimum temperature	20.0 C (68.0 F)	33 of 100 (Routine)
Madras/Minambakkam	India	Record daily precipitation	70.1 mm (2.8 in)	33 of 100 (Routine)
Gateway 1ENE	United States	Record high minimum temperature	25.6 C (78.1 F)	33 of 100 (Routine)
Norman 3SSE	United States	Record daily precipitation	95.3 mm (3.8 in)	33 of 100 (Routine)
East Sale Airport	Australia	Record high minimum temperature	13.2 C (55.8 F)	32 of 100 (Routine)
Suhana	Russia	Record high minimum temperature	13.2 C (55.8 F)	32 of 100 (Routine)
Staraja_Russa	Russia	Record daily precipitation	29.7 mm (1.2 in)	32 of 100 (Routine)
Candor 2SE	United States	Record daily precipitation	50.3 mm (2.0 in)	31 of 100 (Routine)
Boulder	United States	Record high minimum temperature	21.1 C (70.0 F)	31 of 100 (Routine)
Vasilevici	Belarus	Record high minimum temperature	18.4 C (65.1 F)	30 of 100 (Routine)
Altus Dam	United States	Record daily precipitation	97.8 mm (3.9 in)	30 of 100 (Routine)
Breckenridge	United States	Record low minimum temperature	15.0 C (59.0 F)	30 of 100 (Routine)
Mahaulepu 941.1	United States	Record high maximum temperature	33.9 C (93.0 F)	30 of 100 (Routine)
Qionghai	China	Record low maximum temperature	28.4 C (83.1 F)	29 of 100 (Routine)
Bombay/Santacruz	India	Record low minimum temperature	22.2 C (72.0 F)	29 of 100 (Routine)
Albany	United States	Record low maximum temperature	23.3 C (73.9 F)	29 of 100 (Routine)
Burlington Junction	United States	Record daily precipitation	61.5 mm (2.4 in)	29 of 100 (Routine)
Waste Isolt'n Pilot Plt	United States	Record daily precipitation	35.1 mm (1.4 in)	29 of 100 (Routine)
Daisy 4 ENE	United States	Record daily precipitation	95.3 mm (3.8 in)	29 of 100 (Routine)

Counts by Type and Timescale

328 records

Records set or tied on 15 August 2018 by type: Highest daily maximum 47, Lowest daily maximum 30, Highest daily minimum 120, Lowest daily minimum 23, Heaviest daily rainfall 108.

Records on 15 August 2018 by type
Record type	Records
Highest daily maximum	47
Lowest daily maximum	30
Highest daily minimum	120
Lowest daily minimum	23
Heaviest daily rainfall	108
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 15 August 2018 by timescale: all-time 4, monthly 9, daily 315.

How Much Records Were Beaten By

266 broken records

Margins by which the 266 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 70.3. Ties are not counted.

Top 20 by Significance

15 August 2018

Top 20 records on 15 August 2018 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 August 2018	Pulaski, US	all-time rain	160.0 mm (6.3 in)	53.3 mm (2.1 in)	28 years	75 of 100 (Major)
15 August 2018	Zakatala, AZ	daily rain	99.1 mm (3.9 in)	62.3 mm (2.5 in)	63 years	66 of 100 (Major)
15 August 2018	Idjevan, AM	daily rain	99.1 mm (3.9 in)	70.3 mm (2.8 in)	55 years	65 of 100 (Major)
15 August 2018	Sherburne, US	daily rain	56.4 mm (2.2 in)	37.3 mm (1.5 in)	52 years	61 of 100 (Major)
15 August 2018	Ft Smith Rgnl AP, US	daily rain	92.2 mm (3.6 in)	64.3 mm (2.5 in)	48 years	61 of 100 (Major)
15 August 2018	Castle Rock, US	daily rain	31.0 mm (1.2 in)	17.3 mm (0.7 in)	95 years	57 of 100 (Notable)
15 August 2018	Wister 3S, US	monthly rain	144.3 mm (5.7 in)	36.6 mm (1.4 in)	61 years	57 of 100 (Notable)
15 August 2018	Sarh, TD	daily low min	16.0 C (60.8 F)	3.5 C (6.3 F)	47 years	54 of 100 (Notable)
15 August 2018	Ershovo, RU	daily rain	48.6 mm (1.9 in)	37.7 mm (1.5 in)	31 years	53 of 100 (Notable)
15 August 2018	Kozhikode, IN	daily rain	197.1 mm (7.8 in)	29.5 mm (1.2 in)	95 years	50 of 100 (Notable)
15 August 2018	Independence, US	all-time rain	212.6 mm (8.4 in)	17.3 mm (0.7 in)	34 years	50 of 100 (Notable)
15 August 2018	Long Flat, US	daily rain	40.6 mm (1.6 in)	33.0 mm (1.3 in)	25 years	50 of 100 (Notable)
15 August 2018	Norwich, US	daily rain	36.3 mm (1.4 in)	10.6 mm (0.4 in)	100 years	49 of 100 (Notable)
15 August 2018	Mozajsk, RU	daily rain	60.6 mm (2.4 in)	27.2 mm (1.1 in)	19 years	48 of 100 (Notable)
15 August 2018	Oregon, US	daily rain	71.6 mm (2.8 in)	13.2 mm (0.5 in)	111 years	48 of 100 (Notable)
15 August 2018	Towanda 1 S, US	daily rain	77.7 mm (3.1 in)	36.6 mm (1.4 in)	7 years	48 of 100 (Notable)
15 August 2018	Red Oak, US	daily rain	63.2 mm (2.5 in)	23.1 mm (0.9 in)	80 years	47 of 100 (Notable)
15 August 2018	Nizhneudinsk, RU	daily rain	42.8 mm (1.7 in)	17.5 mm (0.7 in)	56 years	45 of 100 (Notable)
15 August 2018	Ferron, US	daily high min	20.6 C (69.1 F)	1.2 C (2.2 F)	119 years	44 of 100 (Notable)
15 August 2018	Iron Mtn-Kingsford Wwtp, US	daily rain	66.0 mm (2.6 in)	24.6 mm (1.0 in)	40 years	43 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

1793 to 2018

Records set or tied on this calendar date in each year from 1793 to 2018. 2018 had 328 records.

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

Records on 08-15 in each year
Year	Records
1793	2
1802	1
1805	1
1812	1
1821	1
1838	2
1839	1
1841	1
1844	1
1845	3
1852	1
1854	1
1856	1
1858	1
1861	3
1867	1
1868	2
1869	1
1873	2
1875	1
1876	2
1877	1
1878	1
1879	1
1880	3
1881	2
1882	2
1883	1
1884	2
1885	3
1886	1
1887	1
1888	3
1890	2
1891	2
1892	3
1893	3
1895	1
1896	9
1897	3
1898	1
1899	2
1900	6
1901	5
1902	10
1903	5
1904	17
1905	26
1906	8
1907	14
1908	15
1909	30
1910	16
1911	26
1912	34
1913	42
1914	11
1915	26
1916	223
1917	32
1918	23
1919	22
1920	59
1921	55
1922	86
1923	116
1924	220
1925	91
1926	115
1927	223
1928	271
1929	586
1930	274
1931	351
1932	368
1933	268
1934	992
1935	414
1936	867
1937	574
1938	681
1939	450
1940	372
1941	289
1942	377
1943	426
1944	610
1945	433
1946	285
1947	559
1948	366
1949	559
1950	317
1951	597
1952	596
1953	449
1954	481
1955	539
1956	390
1957	355
1958	1,092
1959	515
1960	417
1961	704
1962	1,052
1963	972
1964	1,185
1965	535
1966	340
1967	687
1968	1,002
1969	583
1970	382
1971	899
1972	613
1973	499
1974	512
1975	490
1976	1,345
1977	550
1978	841
1979	1,788
1980	745
1981	588
1982	479
1983	955
1984	622
1985	915
1986	1,283
1987	1,098
1988	1,479
1989	495
1990	758
1991	778
1992	1,638
1993	831
1994	1,073
1995	1,298
1996	929
1997	927
1998	861
1999	956
2000	932
2001	1,254
2002	1,307
2003	1,248
2004	1,424
2005	1,067
2006	923
2007	1,317
2008	964
2009	1,038
2010	1,622
2011	770
2012	654
2013	711
2014	583
2015	759
2016	707
2017	532
2018	328
2019	435
2020	1,327
2021	900
2022	692
2023	1,414
2024	729
2025	772
2026	975

Download the Data

Data for records on 2018-08-15: 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	223
10 to 20	22
20 to 30	11
30 to 40	6
40 to 50	0
50 to 60	1
60 to 70	2
70 to 80	1