Weather Records on 31 August 2017

596 weather records were set or tied worldwide on 31 August 2017. Highest significance: Orange, US.

Key Facts for 31 August 2017

On 31 August 2017, 596 weather records were set or tied at long-record stations worldwide.
288 were record highs and 172 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 23 monthly and 569 daily.
Orange set an all-time record daily precipitation of 514.4 mm (20.3 in) on 31 August 2017.
Across 165 earlier years (1796 to 2026) the same calendar date averaged 435 records.

Record Map

596 stations

596 station records on 31 August 2017 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 August 2017: highest significance records shown on the map
Station	Country	Type	Value	Significance
Orange	United States	Record daily precipitation	514.4 mm (20.3 in)	86 of 100 (Exceptional)
Robertsdale	United States	Record daily precipitation	200.9 mm (7.9 in)	83 of 100 (Exceptional)
Clarksville Wwtp	United States	Record daily precipitation	124.2 mm (4.9 in)	76 of 100 (Major)
W Pt	United States	Record daily precipitation	67.3 mm (2.6 in)	57 of 100 (Notable)
Vishakhapatnam	India	Record daily precipitation	59.9 mm (2.4 in)	55 of 100 (Notable)
Williston Sloulin Fld	United States	Record daily precipitation	36.8 mm (1.4 in)	55 of 100 (Notable)
Hackberry 8 SSW	United States	Record daily precipitation	167.6 mm (6.6 in)	51 of 100 (Notable)
Homer 1N	United States	Record daily precipitation	64.8 mm (2.6 in)	50 of 100 (Notable)
Bay City Wtr Wks	United States	Record daily precipitation	135.9 mm (5.4 in)	50 of 100 (Notable)
Pineland	United States	Record daily precipitation	194.1 mm (7.6 in)	49 of 100 (Notable)
Manzanillo	Mexico	Record daily precipitation	146.1 mm (5.8 in)	47 of 100 (Notable)
Hanna 4 SSE	United States	Record daily precipitation	247.7 mm (9.8 in)	47 of 100 (Notable)
Carrizo Springs 3S	United States	Record low minimum temperature	16.7 C (62.1 F)	47 of 100 (Notable)
Town Bluff Dam	United States	Record daily precipitation	110.5 mm (4.4 in)	47 of 100 (Notable)
Leesville	United States	Record daily precipitation	87.9 mm (3.5 in)	46 of 100 (Notable)
Portland	United States	Record daily precipitation	89.7 mm (3.5 in)	45 of 100 (Notable)
Taganrog (Lighthouse)	Russia	Record daily precipitation	30.6 mm (1.2 in)	44 of 100 (Notable)
Woodbury	United States	Record daily precipitation	45.2 mm (1.8 in)	44 of 100 (Notable)
Minden	United States	Record daily precipitation	82.0 mm (3.2 in)	44 of 100 (Notable)
Sam Rayburn Dam	United States	Record daily precipitation	96.3 mm (3.8 in)	44 of 100 (Notable)
Jackson McKellar- Sipes AP	United States	Record daily precipitation	95.5 mm (3.8 in)	44 of 100 (Notable)
Great Falls 16St	United States	Record high minimum temperature	19.4 C (66.9 F)	43 of 100 (Notable)
Falfurrias	United States	Record low minimum temperature	17.8 C (64.0 F)	43 of 100 (Notable)
Tillabery	Niger	Record daily precipitation	65.0 mm (2.6 in)	42 of 100 (Notable)
Sailes Fire Twr	United States	Record daily precipitation	90.2 mm (3.6 in)	42 of 100 (Notable)
Memphis Intl AP	United States	Record daily precipitation	102.6 mm (4.0 in)	42 of 100 (Notable)
Yosemite Park HQ	United States	Record high minimum temperature	19.4 C (66.9 F)	41 of 100 (Notable)
Center	United States	Record low maximum temperature	21.7 C (71.1 F)	41 of 100 (Notable)
Sedro-Woolley	United States	Record high minimum temperature	16.1 C (61.0 F)	41 of 100 (Notable)
Pfullendorf	Germany	Record daily precipitation	35.8 mm (1.4 in)	40 of 100 (Notable)
Boos	Germany	Record daily precipitation	53.7 mm (2.1 in)	40 of 100 (Notable)
Rudnaja Pristan	Russia	Record low minimum temperature	3.9 C (39.0 F)	40 of 100 (Notable)
Carrollton	United States	Record daily precipitation	34.8 mm (1.4 in)	40 of 100 (Notable)
Arcadia	United States	Record daily precipitation	92.2 mm (3.6 in)	40 of 100 (Notable)
Diablo Dam	United States	Record high minimum temperature	15.6 C (60.1 F)	40 of 100 (Notable)
Russellville #2	United States	Record daily precipitation	62.0 mm (2.4 in)	39 of 100 (Notable)
Jordan	United States	Record high minimum temperature	20.0 C (68.0 F)	39 of 100 (Notable)
Truscott 3 W	United States	Record low minimum temperature	10.6 C (51.1 F)	39 of 100 (Notable)
Myton	United States	Record high minimum temperature	16.7 C (62.1 F)	39 of 100 (Notable)
Republic	United States	Record high maximum temperature	36.7 C (98.1 F)	39 of 100 (Notable)
Bowling Green Warren Co AP	United States	Record daily precipitation	46.5 mm (1.8 in)	39 of 100 (Notable)
Ajo	United States	Record high minimum temperature	30.0 C (86.0 F)	38 of 100 (Notable)
Plant City	United States	Record high maximum temperature	37.8 C (100.0 F)	38 of 100 (Notable)
Jingemarra	Australia	Record daily precipitation	25.4 mm (1.0 in)	37 of 100 (Notable)
Island Park	United States	Record high minimum temperature	12.8 C (55.0 F)	37 of 100 (Notable)
Jasper	United States	Record daily precipitation	114.3 mm (4.5 in)	37 of 100 (Notable)
Riverton	United States	Record high minimum temperature	16.7 C (62.1 F)	37 of 100 (Notable)
Ikerasassuaq	Greenland [Denmark]	Record high minimum temperature	11.8 C (53.2 F)	36 of 100 (Notable)
Petropavlovsk-Kamchatskij	Russia	Record daily precipitation	39.0 mm (1.5 in)	36 of 100 (Notable)
Prade Rch	United States	Record low minimum temperature	10.6 C (51.1 F)	36 of 100 (Notable)
Wamsutter	United States	Record high minimum temperature	13.9 C (57.0 F)	36 of 100 (Notable)
Fort Shevchenko	Kazakhstan	Record high maximum temperature	42.7 C (108.9 F)	35 of 100 (Notable)
Turkestan	Kazakhstan	Record high minimum temperature	23.6 C (74.5 F)	35 of 100 (Notable)
Enterprise 4 W	United States	Record daily precipitation	64.8 mm (2.6 in)	35 of 100 (Notable)
Koran	United States	Record daily precipitation	101.6 mm (4.0 in)	35 of 100 (Notable)
St. Mary Montana	United States	Record high minimum temperature	17.8 C (64.0 F)	35 of 100 (Notable)
Evergreen	United States	Record daily precipitation	46.0 mm (1.8 in)	34 of 100 (Routine)
Opelika	United States	Record daily precipitation	54.6 mm (2.1 in)	34 of 100 (Routine)
Graton	United States	Record high maximum temperature	39.4 C (102.9 F)	34 of 100 (Routine)
Logansport	United States	Record daily precipitation	69.3 mm (2.7 in)	34 of 100 (Routine)

Counts by Type and Timescale

596 records

Records set or tied on 31 August 2017 by type: Highest daily maximum 100, Lowest daily maximum 49, Highest daily minimum 188, Lowest daily minimum 123, Heaviest daily rainfall 136.

Records on 31 August 2017 by type
Record type	Records
Highest daily maximum	100
Lowest daily maximum	49
Highest daily minimum	188
Lowest daily minimum	123
Heaviest daily rainfall	136
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 August 2017 by timescale: all-time 4, monthly 23, daily 569.

How Much Records Were Beaten By

459 broken records

Margins by which the 459 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 157.0. Ties are not counted.

Top 20 by Significance

31 August 2017

Top 20 records on 31 August 2017 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 August 2017	Orange, US	all-time rain	514.4 mm (20.3 in)	113.1 mm (4.5 in)	53 years	86 of 100 (Exceptional)
31 August 2017	Robertsdale, US	monthly rain	200.9 mm (7.9 in)	72.4 mm (2.9 in)	78 years	83 of 100 (Exceptional)
31 August 2017	Clarksville Wwtp, US	daily rain	124.2 mm (4.9 in)	91.4 mm (3.6 in)	88 years	76 of 100 (Major)
31 August 2017	W Pt, US	daily rain	67.3 mm (2.6 in)	33.0 mm (1.3 in)	84 years	57 of 100 (Notable)
31 August 2017	Vishakhapatnam, IN	daily rain	59.9 mm (2.4 in)	27.6 mm (1.1 in)	92 years	55 of 100 (Notable)
31 August 2017	Williston Sloulin Fld, US	daily rain	36.8 mm (1.4 in)	13.4 mm (0.5 in)	95 years	55 of 100 (Notable)
31 August 2017	Hackberry 8 SSW, US	daily rain	167.6 mm (6.6 in)	123.1 mm (4.8 in)	14 years	51 of 100 (Notable)
31 August 2017	Homer 1N, US	daily rain	64.8 mm (2.6 in)	26.7 mm (1.1 in)	67 years	50 of 100 (Notable)
31 August 2017	Bay City Wtr Wks, US	daily rain	135.9 mm (5.4 in)	54.1 mm (2.1 in)	39 years	50 of 100 (Notable)
31 August 2017	Pineland, US	daily rain	194.1 mm (7.6 in)	157.0 mm (6.2 in)	16 years	49 of 100 (Notable)
31 August 2017	Manzanillo, MX	daily rain	146.1 mm (5.8 in)	111.8 mm (4.4 in)	11 years	47 of 100 (Notable)
31 August 2017	Hanna 4 SSE, US	all-time rain	247.7 mm (9.8 in)	44.5 mm (1.8 in)	0 years	47 of 100 (Notable)
31 August 2017	Carrizo Springs 3S, US	daily low min	16.7 C (62.1 F)	2.7 C (4.9 F)	72 years	47 of 100 (Notable)
31 August 2017	Town Bluff Dam, US	daily rain	110.5 mm (4.4 in)	50.6 mm (2.0 in)	20 years	47 of 100 (Notable)
31 August 2017	Leesville, US	daily rain	87.9 mm (3.5 in)	24.4 mm (1.0 in)	72 years	46 of 100 (Notable)
31 August 2017	Portland, US	daily rain	89.7 mm (3.5 in)	23.7 mm (0.9 in)	72 years	45 of 100 (Notable)
31 August 2017	Taganrog (Lighthouse), RU	daily rain	30.6 mm (1.2 in)	21.0 mm (0.8 in)	38 years	44 of 100 (Notable)
31 August 2017	Woodbury, US	daily rain	45.2 mm (1.8 in)	18.3 mm (0.7 in)	67 years	44 of 100 (Notable)
31 August 2017	Minden, US	daily rain	82.0 mm (3.2 in)	6.8 mm (0.27 in)	100 years	44 of 100 (Notable)
31 August 2017	Sam Rayburn Dam, US	daily rain	96.3 mm (3.8 in)	55.2 mm (2.2 in)	20 years	44 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

1796 to 2017

Records set or tied on this calendar date in each year from 1796 to 2017. 2017 had 596 records.

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

Records on 08-31 in each year
Year	Records
1796	1
1806	1
1807	2
1813	1
1814	1
1816	1
1827	1
1836	1
1846	1
1849	1
1851	1
1856	2
1858	1
1859	1
1860	1
1861	1
1863	1
1867	1
1869	1
1873	1
1875	1
1876	1
1877	2
1879	2
1881	3
1882	2
1885	1
1886	5
1887	1
1889	1
1890	2
1892	3
1893	1
1894	1
1895	1
1896	1
1897	5
1898	10
1899	4
1900	3
1901	5
1902	5
1903	16
1904	13
1905	8
1906	47
1907	6
1908	12
1909	39
1910	20
1911	31
1912	34
1913	40
1914	23
1915	71
1916	7
1917	60
1918	58
1919	25
1920	46
1921	86
1922	58
1923	63
1924	232
1925	111
1926	148
1927	103
1928	201
1929	300
1930	243
1931	192
1932	807
1933	424
1934	381
1935	540
1936	226
1937	508
1938	324
1939	296
1940	400
1941	528
1942	422
1943	650
1944	638
1945	572
1946	545
1947	473
1948	367
1949	409
1950	662
1951	910
1952	388
1953	1,054
1954	633
1955	539
1956	734
1957	317
1958	417
1959	496
1960	366
1961	625
1962	432
1963	415
1964	591
1965	886
1966	830
1967	952
1968	562
1969	474
1970	558
1971	326
1972	287
1973	793
1974	587
1975	658
1976	732
1977	621
1978	891
1979	400
1980	701
1981	692
1982	586
1983	788
1984	866
1985	854
1986	1,218
1987	836
1988	570
1989	622
1990	966
1991	848
1992	1,274
1993	1,286
1994	1,139
1995	1,077
1996	1,451
1997	943
1998	1,163
1999	988
2000	1,545
2001	944
2002	852
2003	1,232
2004	963
2005	1,782
2006	1,147
2007	1,110
2008	870
2009	1,224
2010	1,490
2011	994
2012	932
2013	771
2014	458
2015	1,074
2016	599
2017	596
2018	366
2019	781
2020	737
2021	553
2022	1,191
2023	600
2024	766
2025	307
2026	595

Download the Data

Data for records on 2017-08-31: 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 20	424
20 to 40	23
40 to 60	6
60 to 80	1
80 to 100	1
100 to 120	2
120 to 140	1
140 to 160	1