Weather Records on 20 August 2017

324 weather records were set or tied worldwide on 20 August 2017. Highest significance: Podor, SN.

Key Facts for 20 August 2017

On 20 August 2017, 324 weather records were set or tied at long-record stations worldwide.
166 were record highs and 79 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 6 monthly and 316 daily.
Podor set an all-time record daily precipitation of 180.1 mm (7.1 in) on 20 August 2017.
Across 163 earlier years (1797 to 2026) the same calendar date averaged 456 records.

Record Map

324 stations

324 station records on 20 August 2017 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 August 2017: highest significance records shown on the map
Station	Country	Type	Value	Significance
Podor	Senegal	Record daily precipitation	180.1 mm (7.1 in)	85 of 100 (Exceptional)
Krasnojarsk	Russia	Record daily precipitation	94.3 mm (3.7 in)	74 of 100 (Major)
Idjevan	Armenia	Record daily precipitation	99.1 mm (3.9 in)	64 of 100 (Major)
Usugli	Russia	Record daily precipitation	68.1 mm (2.7 in)	60 of 100 (Major)
Tamaru	Australia	Record daily precipitation	50.0 mm (2.0 in)	59 of 100 (Notable)
Kalingapatam	India	Record daily precipitation	71.1 mm (2.8 in)	53 of 100 (Notable)
Krasnyj Chikoj	Russia	Record daily precipitation	48.4 mm (1.9 in)	53 of 100 (Notable)
Kyra	Russia	Record daily precipitation	48.6 mm (1.9 in)	52 of 100 (Notable)
Nizamabad	India	Record daily precipitation	96.0 mm (3.8 in)	47 of 100 (Notable)
Tamar	Australia	Record daily precipitation	32.0 mm (1.3 in)	46 of 100 (Notable)
Sosnovo-Ozerskoe	Russia	Record daily precipitation	51.3 mm (2.0 in)	43 of 100 (Notable)
Dwtn Charleston	United States	Record high minimum temperature	27.8 C (82.0 F)	43 of 100 (Notable)
Crossett 2 SSE	United States	Record high minimum temperature	24.4 C (75.9 F)	41 of 100 (Notable)
Ewing	United States	Record low maximum temperature	20.0 C (68.0 F)	41 of 100 (Notable)
Elephant Butte Dam	United States	Record low maximum temperature	24.4 C (75.9 F)	41 of 100 (Notable)
Kemchug	Russia	Record daily precipitation	35.1 mm (1.4 in)	40 of 100 (Notable)
Chita	Russia	Record daily precipitation	48.9 mm (1.9 in)	40 of 100 (Notable)
Quemado	United States	Record high minimum temperature	14.4 C (57.9 F)	40 of 100 (Notable)
Everglades	United States	Record high maximum temperature	36.1 C (97.0 F)	39 of 100 (Notable)
Romanovka	Russia	Record daily precipitation	31.0 mm (1.2 in)	37 of 100 (Notable)
Vytegra	Russia	Record high minimum temperature	17.8 C (64.0 F)	36 of 100 (Notable)
Kaca	Russia	Record daily precipitation	38.1 mm (1.5 in)	35 of 100 (Notable)
Ulety	Russia	Record daily precipitation	40.9 mm (1.6 in)	35 of 100 (Notable)
Stuart	United States	Record high minimum temperature	27.2 C (81.0 F)	35 of 100 (Notable)
Osceola	United States	Record daily precipitation	79.8 mm (3.1 in)	34 of 100 (Routine)
Caballo Dam	United States	Record low maximum temperature	26.7 C (80.1 F)	34 of 100 (Routine)
Zhizhgin Mayak	Russia	Record high minimum temperature	14.7 C (58.5 F)	33 of 100 (Routine)
Majuro Wbas AP	Marshall Islands	Record daily precipitation	114.8 mm (4.5 in)	32 of 100 (Routine)
Calaveras Big Trees	United States	Record high minimum temperature	16.1 C (61.0 F)	32 of 100 (Routine)
Seward	United States	Record daily precipitation	59.4 mm (2.3 in)	32 of 100 (Routine)
Surprise	United States	Record daily precipitation	56.4 mm (2.2 in)	32 of 100 (Routine)
Opihihale #2 24.1	United States	Record high maximum temperature	33.3 C (91.9 F)	32 of 100 (Routine)
Palestine 2 NE	United States	Record high minimum temperature	26.1 C (79.0 F)	32 of 100 (Routine)
San Simon	United States	Record low maximum temperature	28.9 C (84.0 F)	31 of 100 (Routine)
Honavar	India	Record daily precipitation	82.5 mm (3.2 in)	30 of 100 (Routine)
Mazanovo	Russia	Record high minimum temperature	18.7 C (65.7 F)	30 of 100 (Routine)
Turocak	Russia	Record daily precipitation	31.0 mm (1.2 in)	30 of 100 (Routine)
Tarifa	Spain	Record high minimum temperature	25.2 C (77.4 F)	30 of 100 (Routine)
Vitebsk	Belarus	Record high maximum temperature	32.1 C (89.8 F)	29 of 100 (Routine)
Roosevelt Roads	Puerto Rico [United States]	Record daily precipitation	44.7 mm (1.8 in)	28 of 100 (Routine)
Uhta	Russia	Record high minimum temperature	15.5 C (59.9 F)	28 of 100 (Routine)
Ft Ross	United States	Record low minimum temperature	3.3 C (37.9 F)	27 of 100 (Routine)
Port Hedland Airport	Australia	Record high minimum temperature	18.7 C (65.7 F)	26 of 100 (Routine)
Condobolin Ag Research STN	Australia	Record low minimum temperature	-5.0 C (23.0 F)	26 of 100 (Routine)
Volciha	Russia	Record low minimum temperature	4.5 C (40.1 F)	26 of 100 (Routine)
Gila Hot Springs	United States	Record low maximum temperature	22.8 C (73.0 F)	26 of 100 (Routine)
Kuwait Internationa	Kuwait	Record high minimum temperature	35.1 C (95.2 F)	25 of 100 (Routine)
Abakan(Hakasskaja)	Russia	Record low maximum temperature	15.2 C (59.4 F)	25 of 100 (Routine)
Dushanbe	Tajikistan	Record low minimum temperature	11.4 C (52.5 F)	25 of 100 (Routine)
Sinop	Turkey	Record high maximum temperature	30.3 C (86.5 F)	25 of 100 (Routine)
Deming Muni AP	United States	Record low maximum temperature	24.4 C (75.9 F)	25 of 100 (Routine)
Little Grove	Australia	Record daily precipitation	27.6 mm (1.1 in)	24 of 100 (Routine)
Mombasa	Kenya	Record high minimum temperature	22.4 C (72.3 F)	24 of 100 (Routine)
Tillabery	Niger	Record high minimum temperature	27.2 C (81.0 F)	24 of 100 (Routine)
Ust-Karenga	Russia	Record daily precipitation	40.4 mm (1.6 in)	24 of 100 (Routine)
Izana	Spain	Record high minimum temperature	20.6 C (69.1 F)	24 of 100 (Routine)
Semej	Kazakhstan	Record low minimum temperature	3.5 C (38.3 F)	23 of 100 (Routine)
Petrozawodsk	Russia	Record high minimum temperature	16.6 C (61.9 F)	23 of 100 (Routine)
Talon	Russia	Record high minimum temperature	12.7 C (54.9 F)	23 of 100 (Routine)
Cavern City AP	United States	Record daily precipitation	30.0 mm (1.2 in)	23 of 100 (Routine)

Counts by Type and Timescale

324 records

Records set or tied on 20 August 2017 by type: Highest daily maximum 49, Lowest daily maximum 33, Highest daily minimum 117, Lowest daily minimum 46, Heaviest daily rainfall 79.

Records on 20 August 2017 by type
Record type	Records
Highest daily maximum	49
Lowest daily maximum	33
Highest daily minimum	117
Lowest daily minimum	46
Heaviest daily rainfall	79
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 August 2017 by timescale: all-time 2, monthly 6, daily 316.

How Much Records Were Beaten By

257 broken records

Margins by which the 257 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 87.5. Ties are not counted.

Top 20 by Significance

20 August 2017

Top 20 records on 20 August 2017 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 August 2017	Podor, SN	all-time rain	180.1 mm (7.1 in)	47.1 mm (1.9 in)	97 years	85 of 100 (Exceptional)
20 August 2017	Krasnojarsk, RU	daily rain	94.3 mm (3.7 in)	65.9 mm (2.6 in)	82 years	74 of 100 (Major)
20 August 2017	Idjevan, AM	daily rain	99.1 mm (3.9 in)	87.5 mm (3.4 in)	50 years	64 of 100 (Major)
20 August 2017	Usugli, RU	daily rain	68.1 mm (2.7 in)	31.5 mm (1.2 in)	66 years	60 of 100 (Major)
20 August 2017	Tamaru, AU	daily rain	50.0 mm (2.0 in)	40.6 mm (1.6 in)	47 years	59 of 100 (Notable)
20 August 2017	Kalingapatam, IN	daily rain	71.1 mm (2.8 in)	50.8 mm (2.0 in)	60 years	53 of 100 (Notable)
20 August 2017	Krasnyj Chikoj, RU	daily rain	48.4 mm (1.9 in)	18.5 mm (0.7 in)	64 years	53 of 100 (Notable)
20 August 2017	Kyra, RU	daily rain	48.6 mm (1.9 in)	18.0 mm (0.7 in)	79 years	52 of 100 (Notable)
20 August 2017	Nizamabad, IN	daily rain	96.0 mm (3.8 in)	41.0 mm (1.6 in)	54 years	47 of 100 (Notable)
20 August 2017	Tamar, AU	daily rain	32.0 mm (1.3 in)	15.2 mm (0.6 in)	52 years	46 of 100 (Notable)
20 August 2017	Sosnovo-Ozerskoe, RU	monthly rain	51.3 mm (2.0 in)	2.1 mm (0.08 in)	79 years	43 of 100 (Notable)
20 August 2017	Dwtn Charleston, US	daily high min	27.8 C (82.0 F)	0.6 C (1.1 F)	116 years	43 of 100 (Notable)
20 August 2017	Crossett 2 SSE, US	daily high min	24.4 C (75.9 F)	0.5 C (0.9 F)	100 years	41 of 100 (Notable)
20 August 2017	Ewing, US	daily low max	20.0 C (68.0 F)	1.1 C (2.0 F)	96 years	41 of 100 (Notable)
20 August 2017	Elephant Butte Dam, US	daily low max	24.4 C (75.9 F)	0.6 C (1.1 F)	104 years	41 of 100 (Notable)
20 August 2017	Kemchug, RU	daily rain	35.1 mm (1.4 in)	13.2 mm (0.5 in)	42 years	40 of 100 (Notable)
20 August 2017	Chita, RU	daily rain	48.9 mm (1.9 in)	12.4 mm (0.5 in)	54 years	40 of 100 (Notable)
20 August 2017	Quemado, US	daily high min	14.4 C (57.9 F)	1.6 C (2.9 F)	84 years	40 of 100 (Notable)
20 August 2017	Everglades, US	daily high max	36.1 C (97.0 F)	1.1 C (2.0 F)	79 years	39 of 100 (Notable)
20 August 2017	Romanovka, RU	daily rain	31.0 mm (1.2 in)	8.0 mm (0.31 in)	66 years	37 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 2017

Records set or tied on this calendar date in each year from 1797 to 2017. 2017 had 324 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 2017-08-20: 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 20	248
20 to 40	3
40 to 60	4
60 to 80	1
80 to 100	1