Weather Records on 22 August 2017

537 weather records were set or tied worldwide on 22 August 2017. Highest significance: Hoopeston, US.

Key Facts for 22 August 2017

On 22 August 2017, 537 weather records were set or tied at long-record stations worldwide.
296 were record highs and 64 were record lows, counting maximum and minimum temperature.
By timescale, 6 were all-time records, 7 monthly and 524 daily.
Hoopeston set a daily record precipitation of 101.1 mm (4.0 in) on 22 August 2017.
Across 167 earlier years (1802 to 2026) the same calendar date averaged 436 records.

Record Map

537 stations

537 station records on 22 August 2017 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 22 August 2017: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hoopeston	United States	Record daily precipitation	101.1 mm (4.0 in)	80 of 100 (Exceptional)
Ottawa	United States	Record daily precipitation	156.7 mm (6.2 in)	66 of 100 (Major)
Overbrook 5 SE	United States	Record daily precipitation	127.0 mm (5.0 in)	65 of 100 (Major)
Bonner Springs	United States	Record daily precipitation	118.1 mm (4.6 in)	64 of 100 (Major)
Malin Head	Ireland	Record daily precipitation	73.0 mm (2.9 in)	63 of 100 (Major)
Hoyt 2SE	United States	Record daily precipitation	85.1 mm (3.4 in)	62 of 100 (Major)
Rantoul	United States	Record daily precipitation	86.4 mm (3.4 in)	62 of 100 (Major)
Veraval	India	Record daily precipitation	85.1 mm (3.4 in)	61 of 100 (Major)
Keokuk L&D 19	United States	Record daily precipitation	68.6 mm (2.7 in)	61 of 100 (Major)
Osawatomie	United States	Record daily precipitation	142.2 mm (5.6 in)	61 of 100 (Major)
Allerton	United States	Record daily precipitation	65.3 mm (2.6 in)	57 of 100 (Notable)
Osage City	United States	Record daily precipitation	81.3 mm (3.2 in)	56 of 100 (Notable)
Puhi 1013	United States	Record daily precipitation	69.3 mm (2.7 in)	56 of 100 (Notable)
Bairnsdale Airport	Australia	Record daily precipitation	27.0 mm (1.1 in)	55 of 100 (Notable)
Hillsdale Lake	United States	Record daily precipitation	224.8 mm (8.9 in)	55 of 100 (Notable)
Pomona Lake	United States	Record daily precipitation	82.6 mm (3.3 in)	54 of 100 (Notable)
Downing	United States	Record daily precipitation	47.2 mm (1.9 in)	54 of 100 (Notable)
Clinton Lake	United States	Record daily precipitation	119.4 mm (4.7 in)	53 of 100 (Notable)
Robinson	United States	Record daily precipitation	38.1 mm (1.5 in)	51 of 100 (Notable)
Edina	United States	Record daily precipitation	88.9 mm (3.5 in)	51 of 100 (Notable)
Steffenville	United States	Record daily precipitation	82.3 mm (3.2 in)	51 of 100 (Notable)
Unity Village	United States	Record daily precipitation	154.4 mm (6.1 in)	51 of 100 (Notable)
Casey	United States	Record daily precipitation	45.7 mm (1.8 in)	50 of 100 (Notable)
Melvern Lake	United States	Record daily precipitation	101.6 mm (4.0 in)	50 of 100 (Notable)
Perry Lake	United States	Record daily precipitation	148.3 mm (5.8 in)	50 of 100 (Notable)
Sedalia Wtp	United States	Record daily precipitation	54.6 mm (2.1 in)	50 of 100 (Notable)
McAlester Rgnl AP	United States	Record daily precipitation	54.9 mm (2.2 in)	50 of 100 (Notable)
Harrisonville	United States	Record daily precipitation	193.5 mm (7.6 in)	49 of 100 (Notable)
Papaikou 144.1	United States	Record daily precipitation	70.4 mm (2.8 in)	49 of 100 (Notable)
Dwarka	India	Record daily precipitation	26.9 mm (1.1 in)	48 of 100 (Notable)
Rossville	United States	Record daily precipitation	66.0 mm (2.6 in)	48 of 100 (Notable)
Clinton	United States	Record daily precipitation	108.0 mm (4.3 in)	48 of 100 (Notable)
Ketchikan AP	United States	Record daily precipitation	106.2 mm (4.2 in)	48 of 100 (Notable)
Mt Sterling	United States	Record daily precipitation	61.7 mm (2.4 in)	47 of 100 (Notable)
Butler 4W	United States	Record daily precipitation	88.9 mm (3.5 in)	46 of 100 (Notable)
Garnett 1 E	United States	Record daily precipitation	102.6 mm (4.0 in)	45 of 100 (Notable)
Makaweli 965	United States	Record high maximum temperature	32.8 C (91.0 F)	45 of 100 (Notable)
Tiree	United Kingdom	Record daily precipitation	60.4 mm (2.4 in)	44 of 100 (Notable)
Cerro	United States	Record daily precipitation	27.9 mm (1.1 in)	44 of 100 (Notable)
Jalasjarvi Hirvijarvi	Finland	Record daily precipitation	32.7 mm (1.3 in)	43 of 100 (Notable)
Mc Farland	United States	Record daily precipitation	49.8 mm (2.0 in)	43 of 100 (Notable)
Brunswick	United States	Record daily precipitation	41.9 mm (1.6 in)	43 of 100 (Notable)
Horton	United States	Record daily precipitation	72.4 mm (2.9 in)	42 of 100 (Notable)
Quincy Dam 21	United States	Record daily precipitation	49.5 mm (1.9 in)	41 of 100 (Notable)
W Lafayette 6 NW	United States	Record daily precipitation	47.8 mm (1.9 in)	41 of 100 (Notable)
Houston	United States	Record high minimum temperature	22.2 C (72.0 F)	41 of 100 (Notable)
Atlantic City Marina	United States	Record high minimum temperature	24.4 C (75.9 F)	41 of 100 (Notable)
Bilma	Niger	Record low maximum temperature	32.0 C (89.6 F)	40 of 100 (Notable)
Pecos Nm	United States	Record low maximum temperature	15.6 C (60.1 F)	40 of 100 (Notable)
Keaau 92	United States	Record daily precipitation	105.4 mm (4.1 in)	40 of 100 (Notable)
Olathe Johnson Co Ind AP	United States	Record daily precipitation	63.2 mm (2.5 in)	40 of 100 (Notable)
Yulin	China	Record daily precipitation	54.6 mm (2.1 in)	38 of 100 (Notable)
Concordia	United States	Record daily precipitation	52.6 mm (2.1 in)	38 of 100 (Notable)
Bedford	United States	Record daily precipitation	83.8 mm (3.3 in)	38 of 100 (Notable)
Smithville Lake	United States	Record daily precipitation	140.2 mm (5.5 in)	37 of 100 (Notable)
Abbott 1 SE	United States	Record daily precipitation	48.5 mm (1.9 in)	37 of 100 (Notable)
Mahinahina 466	United States	Record daily precipitation	25.7 mm (1.0 in)	37 of 100 (Notable)
Vero Beach Intl AP	United States	Record high minimum temperature	26.7 C (80.1 F)	37 of 100 (Notable)
Cherry Point MCAS	United States	Record daily precipitation	79.0 mm (3.1 in)	37 of 100 (Notable)
Datong	China	Record daily precipitation	34.8 mm (1.4 in)	36 of 100 (Notable)

Counts by Type and Timescale

537 records

Records set or tied on 22 August 2017 by type: Highest daily maximum 112, Lowest daily maximum 28, Highest daily minimum 184, Lowest daily minimum 36, Heaviest daily rainfall 177.

Records on 22 August 2017 by type
Record type	Records
Highest daily maximum	112
Lowest daily maximum	28
Highest daily minimum	184
Lowest daily minimum	36
Heaviest daily rainfall	177
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 22 August 2017 by timescale: all-time 6, monthly 7, daily 524.

How Much Records Were Beaten By

419 broken records

Margins by which the 419 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 117.1. Ties are not counted.

Top 20 by Significance

22 August 2017

Top 20 records on 22 August 2017 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
22 August 2017	Hoopeston, US	daily rain	101.1 mm (4.0 in)	66.3 mm (2.6 in)	111 years	80 of 100 (Exceptional)
22 August 2017	Ottawa, US	daily rain	156.7 mm (6.2 in)	117.1 mm (4.6 in)	56 years	66 of 100 (Major)
22 August 2017	Overbrook 5 SE, US	daily rain	127.0 mm (5.0 in)	96.8 mm (3.8 in)	56 years	65 of 100 (Major)
22 August 2017	Bonner Springs, US	daily rain	118.1 mm (4.6 in)	80.5 mm (3.2 in)	56 years	64 of 100 (Major)
22 August 2017	Malin Head, IE	all-time rain	73.0 mm (2.9 in)	1.6 mm (0.06 in)	124 years	63 of 100 (Major)
22 August 2017	Hoyt 2SE, US	daily rain	85.1 mm (3.4 in)	60.7 mm (2.4 in)	56 years	62 of 100 (Major)
22 August 2017	Rantoul, US	daily rain	86.4 mm (3.4 in)	34.6 mm (1.4 in)	112 years	62 of 100 (Major)
22 August 2017	Veraval, IN	daily rain	85.1 mm (3.4 in)	53.3 mm (2.1 in)	115 years	61 of 100 (Major)
22 August 2017	Keokuk L&D 19, US	daily rain	68.6 mm (2.7 in)	30.0 mm (1.2 in)	112 years	61 of 100 (Major)
22 August 2017	Osawatomie, US	monthly rain	142.2 mm (5.6 in)	38.8 mm (1.5 in)	71 years	61 of 100 (Major)
22 August 2017	Allerton, US	daily rain	65.3 mm (2.6 in)	46.0 mm (1.8 in)	112 years	57 of 100 (Notable)
22 August 2017	Osage City, US	daily rain	81.3 mm (3.2 in)	28.5 mm (1.1 in)	112 years	56 of 100 (Notable)
22 August 2017	Puhi 1013, US	daily rain	69.3 mm (2.7 in)	44.4 mm (1.7 in)	28 years	56 of 100 (Notable)
22 August 2017	Bairnsdale Airport, AU	daily rain	27.0 mm (1.1 in)	18.0 mm (0.7 in)	28 years	55 of 100 (Notable)
22 August 2017	Hillsdale Lake, US	all-time rain	224.8 mm (8.9 in)	48.3 mm (1.9 in)	23 years	55 of 100 (Notable)
22 August 2017	Pomona Lake, US	daily rain	82.6 mm (3.3 in)	75.2 mm (3.0 in)	32 years	54 of 100 (Notable)
22 August 2017	Downing, US	daily rain	47.2 mm (1.9 in)	22.8 mm (0.9 in)	112 years	54 of 100 (Notable)
22 August 2017	Clinton Lake, US	daily rain	119.4 mm (4.7 in)	96.3 mm (3.8 in)	32 years	53 of 100 (Notable)
22 August 2017	Robinson, US	daily rain	38.1 mm (1.5 in)	14.2 mm (0.6 in)	116 years	51 of 100 (Notable)
22 August 2017	Edina, US	daily rain	88.9 mm (3.5 in)	52.1 mm (2.1 in)	43 years	51 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

1802 to 2017

Records set or tied on this calendar date in each year from 1802 to 2017. 2017 had 537 records.

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

Records on 08-22 in each year
Year	Records
1802	2
1803	1
1805	1
1812	1
1816	1
1835	1
1839	2
1843	1
1846	2
1849	1
1850	1
1853	1
1857	1
1863	1
1864	1
1867	1
1868	1
1869	1
1870	4
1872	1
1875	1
1876	3
1877	3
1878	2
1882	1
1883	1
1884	1
1885	1
1886	1
1887	2
1888	2
1889	3
1891	2
1892	6
1893	3
1894	7
1895	6
1896	2
1897	4
1898	6
1899	5
1900	1
1901	5
1902	6
1903	3
1904	8
1905	7
1906	24
1907	7
1908	29
1909	5
1910	19
1911	20
1912	39
1913	30
1914	18
1915	31
1916	75
1917	47
1918	85
1919	18
1920	60
1921	64
1922	44
1923	279
1924	148
1925	219
1926	144
1927	154
1928	134
1929	240
1930	276
1931	388
1932	222
1933	367
1934	234
1935	337
1936	954
1937	421
1938	501
1939	517
1940	503
1941	249
1942	500
1943	517
1944	526
1945	475
1946	410
1947	1,034
1948	297
1949	570
1950	460
1951	452
1952	372
1953	348
1954	466
1955	553
1956	785
1957	371
1958	511
1959	547
1960	612
1961	562
1962	329
1963	419
1964	686
1965	423
1966	830
1967	404
1968	1,091
1969	727
1970	368
1971	1,021
1972	436
1973	611
1974	628
1975	597
1976	722
1977	655
1978	529
1979	547
1980	640
1981	795
1982	912
1983	1,366
1984	739
1985	793
1986	1,073
1987	801
1988	1,133
1989	753
1990	808
1991	808
1992	994
1993	845
1994	803
1995	1,002
1996	942
1997	1,381
1998	1,016
1999	756
2000	867
2001	940
2002	1,385
2003	1,550
2004	1,029
2005	887
2006	832
2007	1,801
2008	869
2009	1,347
2010	1,397
2011	1,255
2012	831
2013	450
2014	911
2015	529
2016	730
2017	537
2018	752
2019	558
2020	1,041
2021	683
2022	781
2023	1,525
2024	803
2025	1,359
2026	992

Download the Data

Data for records on 2017-08-22: 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	369
20 to 40	26
40 to 60	15
60 to 80	4
80 to 100	3
100 to 120	2