Weather Records on 31 October 1987

1,002 weather records were set or tied worldwide on 31 October 1987. Highest significance: Acton Escondido Fc261, US.

Key Facts for 31 October 1987

On 31 October 1987, 1,002 weather records were set or tied at long-record stations worldwide.
550 were record highs and 192 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 83 monthly and 919 daily.
Acton Escondido Fc261 set a daily record precipitation of 33.3 mm (1.3 in) on 31 October 1987.
Across 163 earlier years (1805 to 2025) the same calendar date averaged 468 records.

Record Map

1,002 stations

1,002 station records on 31 October 1987 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 October 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
Acton Escondido Fc261	United States	Record daily precipitation	33.3 mm (1.3 in)	62 of 100 (Major)
N Wailua Ditch 1051	United States	Record daily precipitation	312.4 mm (12.3 in)	59 of 100 (Notable)
Sandberg	United States	Record daily precipitation	34.3 mm (1.4 in)	58 of 100 (Notable)
Manbulloo	Australia	Record daily precipitation	61.3 mm (2.4 in)	56 of 100 (Notable)
Burbank Valley Pump Plt	United States	Record daily precipitation	35.8 mm (1.4 in)	56 of 100 (Notable)
U C L A	United States	Record daily precipitation	37.1 mm (1.5 in)	55 of 100 (Notable)
Zonia Downs	Australia	Record daily precipitation	50.0 mm (2.0 in)	54 of 100 (Notable)
Topanga Patrol Fc-6	United States	Record daily precipitation	95.0 mm (3.7 in)	54 of 100 (Notable)
Torrance AP	United States	Record daily precipitation	33.8 mm (1.3 in)	53 of 100 (Notable)
Mt Wilson Cbs	United States	Record daily precipitation	79.8 mm (3.1 in)	52 of 100 (Notable)
Jiexiu	China	Record daily precipitation	34.6 mm (1.4 in)	49 of 100 (Notable)
Vincent Fs Fc 120	United States	Record daily precipitation	33.0 mm (1.3 in)	49 of 100 (Notable)
Newhall S Fc32Ce	United States	Record daily precipitation	71.1 mm (2.8 in)	48 of 100 (Notable)
N Platte Rgnl AP	United States	Record daily precipitation	31.2 mm (1.2 in)	48 of 100 (Notable)
Woodland Hills Pierce College	United States	Record daily precipitation	81.3 mm (3.2 in)	47 of 100 (Notable)
Pasadena	United States	Record daily precipitation	28.4 mm (1.1 in)	45 of 100 (Notable)
Randsburg	United States	Record daily precipitation	41.7 mm (1.6 in)	45 of 100 (Notable)
Sandberg Ptrl Fc130B	United States	Record daily precipitation	38.6 mm (1.5 in)	45 of 100 (Notable)
Olivares Mexicanos	Mexico	Record daily precipitation	53.8 mm (2.1 in)	44 of 100 (Notable)
Palmdale	United States	Record daily precipitation	26.7 mm (1.1 in)	44 of 100 (Notable)
Biskra	Algeria	Record high maximum temperature	30.2 C (86.4 F)	43 of 100 (Notable)
Hobart (Ellerslie Road)	Australia	Record high maximum temperature	34.6 C (94.3 F)	43 of 100 (Notable)
Downey Fire Dept. Fc107C	United States	Record daily precipitation	29.7 mm (1.2 in)	43 of 100 (Notable)
Talbotton	United States	Record high maximum temperature	34.4 C (93.9 F)	43 of 100 (Notable)
Beaumont #2	United States	Record daily precipitation	31.8 mm (1.3 in)	43 of 100 (Notable)
Los Angeles Intl AP	United States	Record daily precipitation	28.7 mm (1.1 in)	43 of 100 (Notable)
Pine Creek	Australia	Record daily precipitation	75.6 mm (3.0 in)	41 of 100 (Notable)
Lytle Creek Rs	United States	Record daily precipitation	61.0 mm (2.4 in)	41 of 100 (Notable)
Valle de Las Palmas	Mexico	Record daily precipitation	40.1 mm (1.6 in)	40 of 100 (Notable)
Imperial	United States	Record high minimum temperature	10.6 C (51.1 F)	40 of 100 (Notable)
Robe Comparison	Australia	Record high maximum temperature	31.2 C (88.2 F)	39 of 100 (Notable)
Crown King	United States	Record daily precipitation	41.7 mm (1.6 in)	38 of 100 (Notable)
Lake Arrowhead	United States	Record daily precipitation	55.9 mm (2.2 in)	38 of 100 (Notable)
Bremerton	United States	Record high minimum temperature	12.2 C (54.0 F)	38 of 100 (Notable)
Cape Otway Lighthouse	Australia	Record high minimum temperature	18.5 C (65.3 F)	37 of 100 (Notable)
Himeji	Japan	Record daily precipitation	43.5 mm (1.7 in)	37 of 100 (Notable)
Blaauwkop	South Africa	Record daily precipitation	55.3 mm (2.2 in)	37 of 100 (Notable)
Aliso Canyon Oat Mtn F	United States	Record daily precipitation	63.8 mm (2.5 in)	37 of 100 (Notable)
Cape Nelson Lighthouse Compari	Australia	Record high minimum temperature	19.7 C (67.5 F)	36 of 100 (Notable)
Porto Mandacaru	Brazil	Record daily precipitation	74.5 mm (2.9 in)	36 of 100 (Notable)
Palizada	Mexico	Record low minimum temperature	13.9 C (57.0 F)	36 of 100 (Notable)
Albany	United States	Record high minimum temperature	19.4 C (66.9 F)	36 of 100 (Notable)
Launceston Airport Comparison	Australia	Record high maximum temperature	27.6 C (81.7 F)	35 of 100 (Notable)
Nicosia	Cyprus	Record low maximum temperature	18.2 C (64.8 F)	35 of 100 (Notable)
Buzau	Romania	Record low maximum temperature	5.0 C (41.0 F)	35 of 100 (Notable)
Buckeye	United States	Record high minimum temperature	16.1 C (61.0 F)	35 of 100 (Notable)
San Gabriel Fire Dept	United States	Record daily precipitation	27.9 mm (1.1 in)	35 of 100 (Notable)
Akron 4 E	United States	Record high minimum temperature	6.7 C (44.1 F)	35 of 100 (Notable)
Pagosa Springs 1SE	United States	Record high minimum temperature	5.0 C (41.0 F)	35 of 100 (Notable)
Taloga	United States	Record high minimum temperature	15.0 C (59.0 F)	35 of 100 (Notable)
Flagstaff AP	United States	Record daily precipitation	45.5 mm (1.8 in)	35 of 100 (Notable)
Parafield Airport	Australia	Record high minimum temperature	25.2 C (77.4 F)	34 of 100 (Routine)
Higuera Blanca	Mexico	Record daily precipitation	52.6 mm (2.1 in)	34 of 100 (Routine)
Altadena	United States	Record daily precipitation	57.9 mm (2.3 in)	34 of 100 (Routine)
Driggs	United States	Record high minimum temperature	4.4 C (39.9 F)	34 of 100 (Routine)
Troy 3N	United States	Record daily precipitation	76.2 mm (3.0 in)	34 of 100 (Routine)
Billings Wtp	United States	Record high maximum temperature	22.8 C (73.0 F)	34 of 100 (Routine)
Altus Dam	United States	Record daily precipitation	78.5 mm (3.1 in)	34 of 100 (Routine)
Whyalla (Norrie)	Australia	Record high minimum temperature	24.9 C (76.8 F)	33 of 100 (Routine)
Snowtown	Australia	Record high maximum temperature	39.6 C (103.3 F)	33 of 100 (Routine)

Counts by Type and Timescale

1,002 records

Records set or tied on 31 October 1987 by type: Highest daily maximum 236, Lowest daily maximum 105, Highest daily minimum 314, Lowest daily minimum 87, Heaviest daily rainfall 256, Heaviest daily snowfall 4.

Records on 31 October 1987 by type
Record type	Records
Highest daily maximum	236
Lowest daily maximum	105
Highest daily minimum	314
Lowest daily minimum	87
Heaviest daily rainfall	256
Heaviest daily snowfall	4
Deepest snow cover	0

Records on 31 October 1987 by timescale: all-time 0, monthly 83, daily 919.

How Much Records Were Beaten By

805 broken records

Margins by which the 805 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 127.0. Ties are not counted.

Top 20 by Significance

31 October 1987

Top 20 records on 31 October 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 October 1987	Acton Escondido Fc261, US	daily rain	33.3 mm (1.3 in)	21.9 mm (0.9 in)	64 years	62 of 100 (Major)
31 October 1987	N Wailua Ditch 1051, US	monthly rain	312.4 mm (12.3 in)	112.0 mm (4.4 in)	21 years	59 of 100 (Notable)
31 October 1987	Sandberg, US	daily rain	34.3 mm (1.4 in)	30.7 mm (1.2 in)	50 years	58 of 100 (Notable)
31 October 1987	Manbulloo, AU	daily rain	61.3 mm (2.4 in)	46.6 mm (1.8 in)	65 years	56 of 100 (Notable)
31 October 1987	Burbank Valley Pump Plt, US	daily rain	35.8 mm (1.4 in)	33.0 mm (1.3 in)	42 years	56 of 100 (Notable)
31 October 1987	U C L A, US	daily rain	37.1 mm (1.5 in)	23.1 mm (0.9 in)	53 years	55 of 100 (Notable)
31 October 1987	Zonia Downs, AU	daily rain	50.0 mm (2.0 in)	47.0 mm (1.9 in)	28 years	54 of 100 (Notable)
31 October 1987	Topanga Patrol Fc-6, US	monthly rain	95.0 mm (3.7 in)	62.0 mm (2.4 in)	4 years	54 of 100 (Notable)
31 October 1987	Torrance AP, US	daily rain	33.8 mm (1.3 in)	25.2 mm (1.0 in)	50 years	53 of 100 (Notable)
31 October 1987	Mt Wilson Cbs, US	daily rain	79.8 mm (3.1 in)	69.9 mm (2.8 in)	29 years	52 of 100 (Notable)
31 October 1987	Jiexiu, CN	daily rain	34.6 mm (1.4 in)	28.7 mm (1.1 in)	20 years	49 of 100 (Notable)
31 October 1987	Vincent Fs Fc 120, US	daily rain	33.0 mm (1.3 in)	25.4 mm (1.0 in)	29 years	49 of 100 (Notable)
31 October 1987	Newhall S Fc32Ce, US	monthly rain	71.1 mm (2.8 in)	22.3 mm (0.9 in)	4 years	48 of 100 (Notable)
31 October 1987	N Platte Rgnl AP, US	daily rain	31.2 mm (1.2 in)	27.9 mm (1.1 in)	14 years	48 of 100 (Notable)
31 October 1987	Woodland Hills Pierce College, US	monthly rain	81.3 mm (3.2 in)	24.9 mm (1.0 in)	0 years	47 of 100 (Notable)
31 October 1987	Pasadena, US	daily rain	28.4 mm (1.1 in)	15.7 mm (0.6 in)	64 years	45 of 100 (Notable)
31 October 1987	Randsburg, US	monthly rain	41.7 mm (1.6 in)	13.5 mm (0.5 in)	24 years	45 of 100 (Notable)
31 October 1987	Sandberg Ptrl Fc130B, US	daily rain	38.6 mm (1.5 in)	37.3 mm (1.5 in)	8 years	45 of 100 (Notable)
31 October 1987	Olivares Mexicanos, MX	monthly rain	53.8 mm (2.1 in)	20.0 mm (0.8 in)	4 years	44 of 100 (Notable)
31 October 1987	Palmdale, US	daily rain	26.7 mm (1.1 in)	11.5 mm (0.5 in)	64 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

1805 to 1987

Records set or tied on this calendar date in each year from 1805 to 1987. 1987 had 1,002 records.

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

Records on 10-31 in each year
Year	Records
1805	1
1811	2
1828	1
1836	1
1838	1
1839	1
1841	1
1845	1
1847	2
1848	1
1852	2
1856	1
1865	1
1868	1
1869	3
1873	2
1875	2
1876	1
1877	1
1878	1
1879	1
1880	1
1881	6
1883	1
1884	3
1886	1
1887	2
1888	3
1889	5
1891	3
1892	4
1893	3
1894	5
1895	4
1896	10
1897	1
1898	5
1899	4
1900	5
1901	4
1902	5
1903	5
1904	7
1905	21
1906	38
1907	22
1908	13
1909	15
1910	18
1911	32
1912	14
1913	39
1914	33
1915	11
1916	72
1917	67
1918	72
1919	112
1920	63
1921	22
1922	72
1923	359
1924	244
1925	405
1926	153
1927	183
1928	120
1929	234
1930	240
1931	178
1932	260
1933	796
1934	410
1935	981
1936	307
1937	335
1938	399
1939	415
1940	248
1941	536
1942	578
1943	213
1944	611
1945	287
1946	530
1947	371
1948	695
1949	831
1950	1,237
1951	527
1952	393
1953	303
1954	460
1955	427
1956	1,086
1957	392
1958	314
1959	484
1960	296
1961	511
1962	344
1963	631
1964	538
1965	340
1966	630
1967	748
1968	605
1969	531
1970	412
1971	992
1972	1,234
1973	581
1974	1,192
1975	827
1976	655
1977	616
1978	538
1979	1,130
1980	657
1981	497
1982	560
1983	782
1984	1,054
1985	632
1986	396
1987	1,002
1988	1,058
1989	857
1990	990
1991	3,294
1992	1,324
1993	2,926
1994	1,004
1995	1,051
1996	1,074
1997	1,553
1998	1,410
1999	997
2000	1,114
2001	1,218
2002	1,613
2003	1,167
2004	870
2005	1,048
2006	842
2007	613
2008	1,256
2009	1,030
2010	931
2011	746
2012	884
2013	623
2014	547
2015	691
2016	1,012
2017	437
2018	414
2019	2,501
2020	542
2021	469
2022	497
2023	960
2024	1,133
2025	314

Download the Data

Data for records on 1987-10-31: 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).

Margin	Records
0 to 20	761
20 to 40	33
40 to 60	7
60 to 80	2
80 to 100	0
100 to 120	1
120 to 140	1