Weather Records on 31 August 1987

836 weather records were set or tied worldwide on 31 August 1987. Highest significance: Quambone (Carwell), AU.

Key Facts for 31 August 1987

On 31 August 1987, 836 weather records were set or tied at long-record stations worldwide.
378 were record highs and 260 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 33 monthly and 802 daily.
Quambone (Carwell) set a monthly record daily precipitation of 46.6 mm (1.8 in) on 31 August 1987.
Across 165 earlier years (1796 to 2026) the same calendar date averaged 434 records.

Record Map

836 stations

836 station records on 31 August 1987 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 August 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
Quambone (Carwell)	Australia	Record daily precipitation	46.6 mm (1.8 in)	58 of 100 (Notable)
Federal Post Office	Australia	Record daily precipitation	72.0 mm (2.8 in)	50 of 100 (Notable)
Llano	United States	Record daily precipitation	77.0 mm (3.0 in)	50 of 100 (Notable)
Bellingen Post Office	Australia	Record daily precipitation	46.8 mm (1.8 in)	48 of 100 (Notable)
Pedricea	Mexico	Record daily precipitation	36.6 mm (1.4 in)	46 of 100 (Notable)
Forks 1 E	United States	Record high maximum temperature	36.1 C (97.0 F)	45 of 100 (Notable)
Baton Rouge Metro AP	United States	Record low maximum temperature	25.0 C (77.0 F)	44 of 100 (Notable)
Bowling Alley Point (Poplars)	Australia	Record daily precipitation	27.0 mm (1.1 in)	43 of 100 (Notable)
Anadarko 3 E	United States	Record low minimum temperature	11.1 C (52.0 F)	40 of 100 (Notable)
Eastland	United States	Record daily precipitation	63.8 mm (2.5 in)	40 of 100 (Notable)
Eumungerie Post Office	Australia	Record daily precipitation	34.2 mm (1.3 in)	39 of 100 (Notable)
Lismore (Centre Street)	Australia	Record daily precipitation	25.4 mm (1.0 in)	39 of 100 (Notable)
Villa Guerrero	Mexico	Record daily precipitation	42.4 mm (1.7 in)	39 of 100 (Notable)
Talbotton	United States	Record daily precipitation	67.3 mm (2.6 in)	39 of 100 (Notable)
Headworks Portland Wtr B	United States	Record high maximum temperature	39.4 C (102.9 F)	39 of 100 (Notable)
Savannah Intl AP	United States	Record daily precipitation	91.4 mm (3.6 in)	39 of 100 (Notable)
Galveston	United States	Record low maximum temperature	27.2 C (81.0 F)	39 of 100 (Notable)
Ft Yukon	United States	Record low minimum temperature	-5.0 C (23.0 F)	39 of 100 (Notable)
San Bernardo	Mexico	Record daily precipitation	47.8 mm (1.9 in)	38 of 100 (Notable)
Port Townsend	United States	Record high maximum temperature	30.0 C (86.0 F)	38 of 100 (Notable)
Aberdeen	United States	Record low minimum temperature	0.0 C (32.0 F)	38 of 100 (Notable)
Kaneohe Bay MCAS	United States	Record high maximum temperature	33.9 C (93.0 F)	38 of 100 (Notable)
San Jose	United States	Record high minimum temperature	17.8 C (64.0 F)	37 of 100 (Notable)
Hart 3 WSW	United States	Record low maximum temperature	17.8 C (64.0 F)	37 of 100 (Notable)
Collins	United States	Record low maximum temperature	25.0 C (77.0 F)	37 of 100 (Notable)
Mc Minnville	United States	Record high maximum temperature	38.3 C (100.9 F)	37 of 100 (Notable)
Castlewood	United States	Record low minimum temperature	-0.6 C (30.9 F)	37 of 100 (Notable)
Mellette 4 W	United States	Record low minimum temperature	0.6 C (33.1 F)	37 of 100 (Notable)
Callejones	Mexico	Record daily precipitation	79.8 mm (3.1 in)	36 of 100 (Notable)
Aiken 5SE	United States	Record daily precipitation	70.6 mm (2.8 in)	36 of 100 (Notable)
Throckmorton	United States	Record daily precipitation	48.8 mm (1.9 in)	36 of 100 (Notable)
Lafayette Rgnl AP	United States	Record low maximum temperature	25.6 C (78.1 F)	36 of 100 (Notable)
Mayaguez City	Puerto Rico [United States]	Record high maximum temperature	35.6 C (96.1 F)	35 of 100 (Notable)
Lampasas	United States	Record low maximum temperature	26.1 C (79.0 F)	35 of 100 (Notable)
Salem AP (McNary Field)	United States	Record high maximum temperature	37.8 C (100.0 F)	35 of 100 (Notable)
Wallabadah (Woodton)	Australia	Record daily precipitation	26.4 mm (1.0 in)	34 of 100 (Routine)
Yemassee 1 N	United States	Record daily precipitation	77.5 mm (3.1 in)	34 of 100 (Routine)
Humble Pump STN 5 WNW	United States	Record daily precipitation	58.4 mm (2.3 in)	34 of 100 (Routine)
Nueva Esperanza	Mexico	Record high minimum temperature	25.6 C (78.1 F)	33 of 100 (Routine)
Tipton	United States	Record low maximum temperature	21.1 C (70.0 F)	33 of 100 (Routine)
Forest Grove	United States	Record high maximum temperature	37.8 C (100.0 F)	33 of 100 (Routine)
Prineville	United States	Record high maximum temperature	37.2 C (99.0 F)	33 of 100 (Routine)
Menard	United States	Record low maximum temperature	23.9 C (75.0 F)	33 of 100 (Routine)
Temple	United States	Record low maximum temperature	25.0 C (77.0 F)	33 of 100 (Routine)
Corndale (Willow Vale)	Australia	Record daily precipitation	37.4 mm (1.5 in)	32 of 100 (Routine)
Kaliningrad	Russia	Record daily precipitation	35.5 mm (1.4 in)	32 of 100 (Routine)
Langley	United States	Record daily precipitation	78.0 mm (3.1 in)	32 of 100 (Routine)
Linton	United States	Record low minimum temperature	-1.7 C (28.9 F)	32 of 100 (Routine)
Grants Pass	United States	Record high maximum temperature	40.6 C (105.1 F)	32 of 100 (Routine)
Hillsboro	United States	Record low maximum temperature	26.1 C (79.0 F)	32 of 100 (Routine)
Anacortes	United States	Record high maximum temperature	26.1 C (79.0 F)	32 of 100 (Routine)
Clearbrook	United States	Record high maximum temperature	32.8 C (91.0 F)	32 of 100 (Routine)
Santa Gertrudis	Mexico	Record daily precipitation	34.3 mm (1.4 in)	31 of 100 (Routine)
Curryville 3 W	United States	Record daily precipitation	49.0 mm (1.9 in)	31 of 100 (Routine)
Tallulah	United States	Record low maximum temperature	26.7 C (80.1 F)	31 of 100 (Routine)
Osmond	United States	Record low minimum temperature	0.0 C (32.0 F)	31 of 100 (Routine)
Hood Rvr Exp STN	United States	Record high maximum temperature	36.7 C (98.1 F)	31 of 100 (Routine)
Centralia	United States	Record high maximum temperature	35.6 C (96.1 F)	31 of 100 (Routine)
Vancouver 4 NNE	United States	Record high maximum temperature	35.0 C (95.0 F)	31 of 100 (Routine)
Seattle Urban Site	United States	Record high maximum temperature	30.0 C (86.0 F)	31 of 100 (Routine)

Counts by Type and Timescale

836 records

Records set or tied on 31 August 1987 by type: Highest daily maximum 214, Lowest daily maximum 132, Highest daily minimum 164, Lowest daily minimum 128, Heaviest daily rainfall 198.

Records on 31 August 1987 by type
Record type	Records
Highest daily maximum	214
Lowest daily maximum	132
Highest daily minimum	164
Lowest daily minimum	128
Heaviest daily rainfall	198
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 August 1987 by timescale: all-time 1, monthly 33, daily 802.

How Much Records Were Beaten By

633 broken records

Margins by which the 633 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 59.0. Ties are not counted.

Top 20 by Significance

31 August 1987

Top 20 records on 31 August 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 August 1987	Quambone (Carwell), AU	monthly rain	46.6 mm (1.8 in)	10.0 mm (0.4 in)	88 years	58 of 100 (Notable)
31 August 1987	Federal Post Office, AU	daily rain	72.0 mm (2.8 in)	59.0 mm (2.3 in)	21 years	50 of 100 (Notable)
31 August 1987	Llano, US	daily rain	77.0 mm (3.0 in)	53.4 mm (2.1 in)	28 years	50 of 100 (Notable)
31 August 1987	Bellingen Post Office, AU	daily rain	46.8 mm (1.8 in)	30.3 mm (1.2 in)	85 years	48 of 100 (Notable)
31 August 1987	Pedricea, MX	daily rain	36.6 mm (1.4 in)	24.2 mm (1.0 in)	37 years	46 of 100 (Notable)
31 August 1987	Forks 1 E, US	daily high max	36.1 C (97.0 F)	7.2 C (13.0 F)	68 years	45 of 100 (Notable)
31 August 1987	Baton Rouge Metro AP, US	daily low max	25.0 C (77.0 F)	5.0 C (9.0 F)	52 years	44 of 100 (Notable)
31 August 1987	Bowling Alley Point (Poplars), AU	daily rain	27.0 mm (1.1 in)	8.5 mm (0.33 in)	80 years	43 of 100 (Notable)
31 August 1987	Anadarko 3 E, US	daily low min	11.1 C (52.0 F)	1.1 C (2.0 F)	93 years	40 of 100 (Notable)
31 August 1987	Eastland, US	daily rain	63.8 mm (2.5 in)	34.6 mm (1.4 in)	24 years	40 of 100 (Notable)
31 August 1987	Eumungerie Post Office, AU	daily rain	34.2 mm (1.3 in)	21.5 mm (0.8 in)	41 years	39 of 100 (Notable)
31 August 1987	Lismore (Centre Street), AU	daily rain	25.4 mm (1.0 in)	7.9 mm (0.31 in)	80 years	39 of 100 (Notable)
31 August 1987	Villa Guerrero, MX	daily rain	42.4 mm (1.7 in)	27.4 mm (1.1 in)	24 years	39 of 100 (Notable)
31 August 1987	Talbotton, US	daily rain	67.3 mm (2.6 in)	31.7 mm (1.2 in)	28 years	39 of 100 (Notable)
31 August 1987	Headworks Portland Wtr B, US	daily high max	39.4 C (102.9 F)	5.5 C (9.9 F)	68 years	39 of 100 (Notable)
31 August 1987	Savannah Intl AP, US	daily rain	91.4 mm (3.6 in)	57.6 mm (2.3 in)	25 years	39 of 100 (Notable)
31 August 1987	Galveston, US	daily low max	27.2 C (81.0 F)	1.1 C (2.0 F)	76 years	39 of 100 (Notable)
31 August 1987	Ft Yukon, US	daily low min	-5.0 C (23.0 F)	3.3 C (5.9 F)	76 years	39 of 100 (Notable)
31 August 1987	San Bernardo, MX	daily rain	47.8 mm (1.9 in)	30.0 mm (1.2 in)	18 years	38 of 100 (Notable)
31 August 1987	Port Townsend, US	daily high max	30.0 C (86.0 F)	0.6 C (1.1 F)	93 years	38 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 1987

Records set or tied on this calendar date in each year from 1796 to 1987. 1987 had 836 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 1987-08-31: 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 2026-10-17 (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).