Weather Records on 20 August 2015

1,075 weather records were set or tied worldwide on 20 August 2015. Highest significance: Brevard, US.

Key Facts for 20 August 2015

On 20 August 2015, 1,075 weather records were set or tied at long-record stations worldwide.
528 were record highs and 368 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 25 monthly and 1,050 daily.
Brevard set a daily record precipitation of 106.7 mm (4.2 in) on 20 August 2015.
Across 163 earlier years (1797 to 2026) the same calendar date averaged 451 records.

Record Map

1,075 stations

1,075 station records on 20 August 2015 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 August 2015: highest significance records shown on the map
Station	Country	Type	Value	Significance
Brevard	United States	Record daily precipitation	106.7 mm (4.2 in)	76 of 100 (Major)
Kingston	United States	Record daily precipitation	94.2 mm (3.7 in)	62 of 100 (Major)
Tyler Pounds Fld	United States	Record low maximum temperature	22.2 C (72.0 F)	58 of 100 (Notable)
Napoopoo 28	United States	Record daily precipitation	46.5 mm (1.8 in)	56 of 100 (Notable)
Marshall	United States	Record daily precipitation	63.5 mm (2.5 in)	54 of 100 (Notable)
Hillsboro	United States	Record daily precipitation	85.1 mm (3.4 in)	53 of 100 (Notable)
Weslaco	United States	Record daily precipitation	130.8 mm (5.1 in)	52 of 100 (Notable)
Jeanerette 5 NW	United States	Record daily precipitation	73.9 mm (2.9 in)	51 of 100 (Notable)
Hagerstown 1E	United States	Record daily precipitation	69.9 mm (2.8 in)	50 of 100 (Notable)
El Dorado Goodwin Fld	United States	Record low maximum temperature	21.7 C (71.1 F)	50 of 100 (Notable)
Neosho	United States	Record low maximum temperature	21.1 C (70.0 F)	48 of 100 (Notable)
Norris	United States	Record daily precipitation	114.0 mm (4.5 in)	48 of 100 (Notable)
Mt Pleasant 1 SW	United States	Record low maximum temperature	18.9 C (66.0 F)	47 of 100 (Notable)
Northwood	United States	Record low maximum temperature	16.1 C (61.0 F)	47 of 100 (Notable)
Washington	United States	Record low maximum temperature	18.3 C (64.9 F)	47 of 100 (Notable)
Tyler Pounds Fld	United States	Record daily precipitation	28.2 mm (1.1 in)	47 of 100 (Notable)
Newport	United States	Record low maximum temperature	21.7 C (71.1 F)	46 of 100 (Notable)
Calico Rock 2 WSW	United States	Record low maximum temperature	20.6 C (69.1 F)	45 of 100 (Notable)
Iowa Falls	United States	Record low maximum temperature	17.2 C (63.0 F)	45 of 100 (Notable)
Mtn Grove 2 N	United States	Record low maximum temperature	17.8 C (64.0 F)	45 of 100 (Notable)
Watertown	United States	Record high minimum temperature	23.9 C (75.0 F)	45 of 100 (Notable)
Keosauqua	United States	Record low maximum temperature	20.0 C (68.0 F)	44 of 100 (Notable)
Kealakekua 26.2	United States	Record daily precipitation	30.0 mm (1.2 in)	44 of 100 (Notable)
Palacios Muni AP	United States	Record daily precipitation	134.4 mm (5.3 in)	44 of 100 (Notable)
Esperance Aero	Australia	Record daily precipitation	27.4 mm (1.1 in)	43 of 100 (Notable)
Washta	United States	Record low maximum temperature	20.0 C (68.0 F)	43 of 100 (Notable)
State College	United States	Record high minimum temperature	22.8 C (73.0 F)	43 of 100 (Notable)
Port Mansfield	United States	Record daily precipitation	72.4 mm (2.9 in)	43 of 100 (Notable)
Waimanalo Exp F 795.1	United States	Record daily precipitation	26.7 mm (1.1 in)	43 of 100 (Notable)
Superior	United States	Record high minimum temperature	17.8 C (64.0 F)	43 of 100 (Notable)
Monmouth	United States	Record low maximum temperature	18.9 C (66.0 F)	42 of 100 (Notable)
Fayette	United States	Record low maximum temperature	18.9 C (66.0 F)	42 of 100 (Notable)
Holton	United States	Record low maximum temperature	23.3 C (73.9 F)	42 of 100 (Notable)
Presque Isle	United States	Record high minimum temperature	19.4 C (66.9 F)	42 of 100 (Notable)
Steffenville	United States	Record low maximum temperature	18.9 C (66.0 F)	42 of 100 (Notable)
Waverly	United States	Record high minimum temperature	21.1 C (70.0 F)	42 of 100 (Notable)
Alicia 2 NNE	United States	Record low maximum temperature	22.8 C (73.0 F)	41 of 100 (Notable)
Hardy	United States	Record low maximum temperature	22.2 C (72.0 F)	41 of 100 (Notable)
Mojave	United States	Record high minimum temperature	26.1 C (79.0 F)	41 of 100 (Notable)
Belle Plaine	United States	Record low maximum temperature	17.8 C (64.0 F)	41 of 100 (Notable)
Mason City	United States	Record low maximum temperature	18.9 C (66.0 F)	41 of 100 (Notable)
Winfield 3NE	United States	Record low maximum temperature	23.9 C (75.0 F)	41 of 100 (Notable)
Homer 1N	United States	Record daily precipitation	41.9 mm (1.6 in)	41 of 100 (Notable)
Rockefeller Wl Refuge	United States	Record daily precipitation	127.8 mm (5.0 in)	41 of 100 (Notable)
Gardiner	United States	Record high minimum temperature	19.4 C (66.9 F)	41 of 100 (Notable)
Mt Pleasant 4SW	United States	Record daily precipitation	55.9 mm (2.2 in)	41 of 100 (Notable)
Bolivar 1 NE	United States	Record low maximum temperature	20.0 C (68.0 F)	41 of 100 (Notable)
Angelica	United States	Record high minimum temperature	19.4 C (66.9 F)	41 of 100 (Notable)
Franklinville	United States	Record high minimum temperature	19.4 C (66.9 F)	41 of 100 (Notable)
Selinsgrove 2 S	United States	Record high minimum temperature	23.3 C (73.9 F)	41 of 100 (Notable)
Hot Springs	United States	Record high minimum temperature	18.9 C (66.0 F)	41 of 100 (Notable)
Romney 1 SW	United States	Record high minimum temperature	20.6 C (69.1 F)	41 of 100 (Notable)
Buffalo	United States	Record low minimum temperature	3.9 C (39.0 F)	41 of 100 (Notable)
Monticello Muni AP	United States	Record low maximum temperature	23.3 C (73.9 F)	41 of 100 (Notable)
Cape le Grand Nat Park	Australia	Record daily precipitation	33.0 mm (1.3 in)	40 of 100 (Notable)
Hangzhou	China	Record daily precipitation	86.1 mm (3.4 in)	40 of 100 (Notable)
Subiaco	United States	Record low minimum temperature	12.8 C (55.0 F)	40 of 100 (Notable)
Independence	United States	Record high minimum temperature	25.6 C (78.1 F)	40 of 100 (Notable)
Dyersburg Muni AP	United States	Record daily precipitation	53.3 mm (2.1 in)	40 of 100 (Notable)
Mtn View	United States	Record low maximum temperature	21.1 C (70.0 F)	39 of 100 (Notable)

Counts by Type and Timescale

1,075 records

Records set or tied on 20 August 2015 by type: Highest daily maximum 217, Lowest daily maximum 238, Highest daily minimum 311, Lowest daily minimum 130, Heaviest daily rainfall 179.

Records on 20 August 2015 by type
Record type	Records
Highest daily maximum	217
Lowest daily maximum	238
Highest daily minimum	311
Lowest daily minimum	130
Heaviest daily rainfall	179
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 August 2015 by timescale: all-time 0, monthly 25, daily 1,050.

How Much Records Were Beaten By

817 broken records

Margins by which the 817 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 78.9. Ties are not counted.

Top 20 by Significance

20 August 2015

Top 20 records on 20 August 2015 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 August 2015	Brevard, US	daily rain	106.7 mm (4.2 in)	59.7 mm (2.4 in)	106 years	76 of 100 (Major)
20 August 2015	Kingston, US	monthly rain	94.2 mm (3.7 in)	14.2 mm (0.6 in)	114 years	62 of 100 (Major)
20 August 2015	Tyler Pounds Fld, US	daily low max	22.2 C (72.0 F)	5.6 C (10.1 F)	122 years	58 of 100 (Notable)
20 August 2015	Napoopoo 28, US	daily rain	46.5 mm (1.8 in)	27.2 mm (1.1 in)	56 years	56 of 100 (Notable)
20 August 2015	Marshall, US	daily rain	63.5 mm (2.5 in)	23.4 mm (0.9 in)	100 years	54 of 100 (Notable)
20 August 2015	Hillsboro, US	daily rain	85.1 mm (3.4 in)	35.3 mm (1.4 in)	60 years	53 of 100 (Notable)
20 August 2015	Weslaco, US	daily rain	130.8 mm (5.1 in)	48.8 mm (1.9 in)	45 years	52 of 100 (Notable)
20 August 2015	Jeanerette 5 NW, US	daily rain	73.9 mm (2.9 in)	17.8 mm (0.7 in)	96 years	51 of 100 (Notable)
20 August 2015	Hagerstown 1E, US	daily rain	69.9 mm (2.8 in)	30.0 mm (1.2 in)	52 years	50 of 100 (Notable)
20 August 2015	El Dorado Goodwin Fld, US	daily low max	21.7 C (71.1 F)	3.3 C (5.9 F)	100 years	50 of 100 (Notable)
20 August 2015	Neosho, US	daily low max	21.1 C (70.0 F)	2.8 C (5.0 F)	100 years	48 of 100 (Notable)
20 August 2015	Norris, US	daily rain	114.0 mm (4.5 in)	78.9 mm (3.1 in)	0 years	48 of 100 (Notable)
20 August 2015	Mt Pleasant 1 SW, US	daily low max	18.9 C (66.0 F)	2.8 C (5.0 F)	108 years	47 of 100 (Notable)
20 August 2015	Northwood, US	daily low max	16.1 C (61.0 F)	2.8 C (5.0 F)	108 years	47 of 100 (Notable)
20 August 2015	Washington, US	daily low max	18.3 C (64.9 F)	2.8 C (5.0 F)	108 years	47 of 100 (Notable)
20 August 2015	Tyler Pounds Fld, US	daily rain	28.2 mm (1.1 in)	14.0 mm (0.6 in)	118 years	47 of 100 (Notable)
20 August 2015	Newport, US	daily low max	21.7 C (71.1 F)	2.2 C (4.0 F)	100 years	46 of 100 (Notable)
20 August 2015	Calico Rock 2 WSW, US	daily low max	20.6 C (69.1 F)	2.2 C (4.0 F)	100 years	45 of 100 (Notable)
20 August 2015	Iowa Falls, US	daily low max	17.2 C (63.0 F)	2.2 C (4.0 F)	108 years	45 of 100 (Notable)
20 August 2015	Mtn Grove 2 N, US	daily low max	17.8 C (64.0 F)	2.2 C (4.0 F)	100 years	45 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

1797 to 2015

Records set or tied on this calendar date in each year from 1797 to 2015. 2015 had 1,075 records.

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

Records on 08-20 in each year
Year	Records
1797	1
1807	1
1809	2
1816	1
1830	1
1832	1
1838	1
1840	1
1842	1
1846	1
1849	1
1850	1
1852	1
1858	3
1863	5
1867	4
1870	3
1871	1
1873	1
1875	2
1877	1
1883	2
1884	2
1885	6
1886	1
1888	1
1889	2
1890	2
1891	2
1892	6
1893	1
1894	1
1895	1
1896	5
1897	6
1898	1
1899	5
1900	7
1901	12
1902	3
1903	7
1904	30
1905	7
1906	26
1907	15
1908	21
1909	69
1910	7
1911	18
1912	25
1913	23
1914	15
1915	14
1916	74
1917	51
1918	69
1919	25
1920	47
1921	23
1922	52
1923	83
1924	132
1925	193
1926	187
1927	338
1928	101
1929	213
1930	318
1931	214
1932	299
1933	324
1934	376
1935	339
1936	543
1937	537
1938	250
1939	448
1940	695
1941	230
1942	429
1943	436
1944	355
1945	398
1946	349
1947	988
1948	403
1949	431
1950	1,341
1951	824
1952	425
1953	441
1954	476
1955	848
1956	678
1957	342
1958	281
1959	764
1960	465
1961	520
1962	684
1963	577
1964	629
1965	470
1966	1,094
1967	657
1968	862
1969	608
1970	414
1971	585
1972	522
1973	490
1974	565
1975	411
1976	894
1977	860
1978	563
1979	1,009
1980	991
1981	856
1982	620
1983	1,465
1984	696
1985	666
1986	819
1987	564
1988	991
1989	603
1990	1,262
1991	804
1992	1,168
1993	759
1994	719
1995	1,113
1996	900
1997	1,214
1998	802
1999	810
2000	989
2001	909
2002	1,208
2003	1,031
2004	1,333
2005	1,112
2006	851
2007	1,955
2008	1,170
2009	1,414
2010	1,028
2011	987
2012	1,086
2013	545
2014	582
2015	1,075
2016	872
2017	324
2018	657
2019	698
2020	1,051
2021	1,028
2022	1,038
2023	1,479
2024	589
2025	1,134
2026	985

Download the Data

Data for records on 2015-08-20: 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	752
10 to 20	30
20 to 30	22
30 to 40	5
40 to 50	6
50 to 60	1
60 to 70	0
70 to 80	1