Weather Records on 23 October 1987

694 weather records were set or tied worldwide on 23 October 1987. Highest significance: San Gabriel Canyon Ph, US.

Key Facts for 23 October 1987

On 23 October 1987, 694 weather records were set or tied at long-record stations worldwide.
241 were record highs and 260 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 31 monthly and 663 daily.
San Gabriel Canyon Ph set a daily record precipitation of 88.9 mm (3.5 in) on 23 October 1987.
Across 160 earlier years (1795 to 2025) the same calendar date averaged 461 records.

Record Map

694 stations

694 station records on 23 October 1987 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 23 October 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
San Gabriel Canyon Ph	United States	Record daily precipitation	88.9 mm (3.5 in)	66 of 100 (Major)
Pioche	United States	Record daily precipitation	31.2 mm (1.2 in)	62 of 100 (Major)
Big Tujunga Dam Fc46	United States	Record daily precipitation	66.5 mm (2.6 in)	58 of 100 (Notable)
Lake Arrowhead	United States	Record daily precipitation	84.1 mm (3.3 in)	57 of 100 (Notable)
San Gabriel Dam Fc425B-E	United States	Record daily precipitation	123.7 mm (4.9 in)	55 of 100 (Notable)
Lake City Exp Farm	United States	Record daily snowfall	7.6 cm (3.0 in)	55 of 100 (Notable)
San Bernardino F S 226	United States	Record daily precipitation	31.2 mm (1.2 in)	54 of 100 (Notable)
Fairmont	United States	Record daily precipitation	29.0 mm (1.1 in)	53 of 100 (Notable)
Man	Cote D'Ivoire	Record high maximum temperature	37.4 C (99.3 F)	52 of 100 (Notable)
Mt Wilson Cbs	United States	Record daily precipitation	58.4 mm (2.3 in)	51 of 100 (Notable)
Aparri	Philippines	Record daily precipitation	380.0 mm (15.0 in)	48 of 100 (Notable)
Saugus Pwr Plt 1	United States	Record daily precipitation	34.5 mm (1.4 in)	48 of 100 (Notable)
Chatsworth Fc 24 F	United States	Record daily precipitation	47.0 mm (1.9 in)	44 of 100 (Notable)
Tres Irmaos	Brazil	Record daily precipitation	78.4 mm (3.1 in)	42 of 100 (Notable)
Hillside 4 NNE	United States	Record daily precipitation	29.2 mm (1.1 in)	42 of 100 (Notable)
Tuba City	United States	Record high minimum temperature	10.6 C (51.1 F)	42 of 100 (Notable)
Walnut Ni Fc102C	United States	Record daily precipitation	34.3 mm (1.4 in)	41 of 100 (Notable)
Dublin Phoenix Park	Ireland	Record low minimum temperature	-1.7 C (28.9 F)	40 of 100 (Notable)
Highlands	United States	Record low minimum temperature	-6.7 C (19.9 F)	40 of 100 (Notable)
Duncan	United States	Record high minimum temperature	12.8 C (55.0 F)	39 of 100 (Notable)
Snowflake	United States	Record high minimum temperature	8.9 C (48.0 F)	39 of 100 (Notable)
Foleyvale Station	Australia	Record daily precipitation	44.0 mm (1.7 in)	38 of 100 (Notable)
Adin Rs	United States	Record high minimum temperature	8.9 C (48.0 F)	38 of 100 (Notable)
Vincent Fs Fc 120	United States	Record daily precipitation	30.2 mm (1.2 in)	38 of 100 (Notable)
Carthage	United States	Record low minimum temperature	-2.8 C (27.0 F)	38 of 100 (Notable)
Corpus Christi NAS	United States	Record daily precipitation	115.3 mm (4.5 in)	37 of 100 (Notable)
Valley Head	United States	Record low minimum temperature	-6.1 C (21.0 F)	36 of 100 (Notable)
Buckeye	United States	Record high minimum temperature	17.8 C (64.0 F)	36 of 100 (Notable)
Paso Robles	United States	Record high minimum temperature	13.9 C (57.0 F)	36 of 100 (Notable)
Carrollton	United States	Record low minimum temperature	-3.3 C (26.1 F)	36 of 100 (Notable)
Pascagoula 3 NE	United States	Record low minimum temperature	2.8 C (37.0 F)	35 of 100 (Notable)
Saint Johns	United States	Record high minimum temperature	8.9 C (48.0 F)	34 of 100 (Routine)
Lytle Creek Rs	United States	Record daily precipitation	89.4 mm (3.5 in)	34 of 100 (Routine)
Palomar Mtn Obsy	United States	Record daily precipitation	34.5 mm (1.4 in)	34 of 100 (Routine)
Wewahitchka	United States	Record low maximum temperature	20.6 C (69.1 F)	34 of 100 (Routine)
Cordele	United States	Record low minimum temperature	1.1 C (34.0 F)	34 of 100 (Routine)
Laguna	United States	Record high minimum temperature	8.9 C (48.0 F)	34 of 100 (Routine)
Lordsburg 4 SE	United States	Record high minimum temperature	12.2 C (54.0 F)	34 of 100 (Routine)
Selma	United States	Record low minimum temperature	0.6 C (33.1 F)	33 of 100 (Routine)
Willcox	United States	Record high minimum temperature	12.2 C (54.0 F)	33 of 100 (Routine)
Riverside Fire STN 3	United States	Record daily precipitation	26.2 mm (1.0 in)	33 of 100 (Routine)
Dahlonega 4WSW	United States	Record low minimum temperature	-3.9 C (25.0 F)	33 of 100 (Routine)
Little Falls 2NNE	United States	Record daily snowfall	5.1 cm (2.0 in)	33 of 100 (Routine)
Water Valley	United States	Record low minimum temperature	-1.7 C (28.9 F)	33 of 100 (Routine)
Te Kowai Exp STN	Australia	Record high minimum temperature	24.4 C (75.9 F)	32 of 100 (Routine)
Santo Domingo	Mexico	Record low minimum temperature	11.7 C (53.1 F)	32 of 100 (Routine)
Tonala (Smn)	Mexico	Record high minimum temperature	28.9 C (84.0 F)	32 of 100 (Routine)
Ft Pierce	United States	Record high maximum temperature	32.8 C (91.0 F)	32 of 100 (Routine)
Pascagoula 3 NE	United States	Record low maximum temperature	18.9 C (66.0 F)	32 of 100 (Routine)
Bottineau	United States	Record daily snowfall	5.1 cm (2.0 in)	31 of 100 (Routine)
Lebanon	United States	Record low minimum temperature	-6.1 C (21.0 F)	31 of 100 (Routine)
Nueva Esperanza	Mexico	Record high minimum temperature	25.6 C (78.1 F)	30 of 100 (Routine)
Jefferson 2 E	United States	Record low minimum temperature	-7.8 C (18.0 F)	30 of 100 (Routine)
Morganton	United States	Record low minimum temperature	-3.9 C (25.0 F)	30 of 100 (Routine)
Elsinore	United States	Record high minimum temperature	20.6 C (69.1 F)	29 of 100 (Routine)
Clayton 1 SSW	United States	Record low minimum temperature	-5.6 C (21.9 F)	29 of 100 (Routine)
Roseau	United States	Record daily precipitation	25.4 mm (1.0 in)	29 of 100 (Routine)
Waynesboro	United States	Record low minimum temperature	-5.6 C (21.9 F)	29 of 100 (Routine)
Knoxville AP	United States	Record low minimum temperature	-1.1 C (30.0 F)	29 of 100 (Routine)
Capomal	Mexico	Record low maximum temperature	26.7 C (80.1 F)	28 of 100 (Routine)

Counts by Type and Timescale

694 records

Records set or tied on 23 October 1987 by type: Highest daily maximum 69, Lowest daily maximum 58, Highest daily minimum 172, Lowest daily minimum 202, Heaviest daily rainfall 152, Heaviest daily snowfall 25, Deepest snow cover 16.

Records on 23 October 1987 by type
Record type	Records
Highest daily maximum	69
Lowest daily maximum	58
Highest daily minimum	172
Lowest daily minimum	202
Heaviest daily rainfall	152
Heaviest daily snowfall	25
Deepest snow cover	16

Records on 23 October 1987 by timescale: all-time 0, monthly 31, daily 663.

How Much Records Were Beaten By

499 broken records

Margins by which the 499 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 104.0. Ties are not counted.

Top 20 by Significance

23 October 1987

Top 20 records on 23 October 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 October 1987	San Gabriel Canyon Ph, US	daily rain	88.9 mm (3.5 in)	80.8 mm (3.2 in)	65 years	66 of 100 (Major)
23 October 1987	Pioche, US	daily rain	31.2 mm (1.2 in)	18.5 mm (0.7 in)	97 years	62 of 100 (Major)
23 October 1987	Big Tujunga Dam Fc46, US	daily rain	66.5 mm (2.6 in)	60.1 mm (2.4 in)	45 years	58 of 100 (Notable)
23 October 1987	Lake Arrowhead, US	daily rain	84.1 mm (3.3 in)	76.5 mm (3.0 in)	45 years	57 of 100 (Notable)
23 October 1987	San Gabriel Dam Fc425B-E, US	monthly rain	123.7 mm (4.9 in)	67.1 mm (2.6 in)	4 years	55 of 100 (Notable)
23 October 1987	Lake City Exp Farm, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	88 years	55 of 100 (Notable)
23 October 1987	San Bernardino F S 226, US	daily rain	31.2 mm (1.2 in)	20.0 mm (0.8 in)	80 years	54 of 100 (Notable)
23 October 1987	Fairmont, US	daily rain	29.0 mm (1.1 in)	22.9 mm (0.9 in)	45 years	53 of 100 (Notable)
23 October 1987	Man, CI	monthly high max	37.4 C (99.3 F)	4.9 C (8.8 F)	1 year	52 of 100 (Notable)
23 October 1987	Mt Wilson Cbs, US	daily rain	58.4 mm (2.3 in)	54.3 mm (2.1 in)	28 years	51 of 100 (Notable)
23 October 1987	Aparri, PH	monthly rain	380.0 mm (15.0 in)	104.0 mm (4.1 in)	6 years	48 of 100 (Notable)
23 October 1987	Saugus Pwr Plt 1, US	daily rain	34.5 mm (1.4 in)	31.7 mm (1.2 in)	10 years	48 of 100 (Notable)
23 October 1987	Chatsworth Fc 24 F, US	monthly rain	47.0 mm (1.9 in)	18.6 mm (0.7 in)	4 years	44 of 100 (Notable)
23 October 1987	Tres Irmaos, BR	daily rain	78.4 mm (3.1 in)	47.8 mm (1.9 in)	16 years	42 of 100 (Notable)
23 October 1987	Hillside 4 NNE, US	daily rain	29.2 mm (1.1 in)	26.7 mm (1.1 in)	16 years	42 of 100 (Notable)
23 October 1987	Tuba City, US	daily high min	10.6 C (51.1 F)	2.8 C (5.0 F)	87 years	42 of 100 (Notable)
23 October 1987	Walnut Ni Fc102C, US	daily rain	34.3 mm (1.4 in)	27.9 mm (1.1 in)	45 years	41 of 100 (Notable)
23 October 1987	Dublin Phoenix Park, IE	daily low min	-1.7 C (28.9 F)	1.4 C (2.5 F)	91 years	40 of 100 (Notable)
23 October 1987	Highlands, US	daily low min	-6.7 C (19.9 F)	2.8 C (5.0 F)	88 years	40 of 100 (Notable)
23 October 1987	Duncan, US	daily high min	12.8 C (55.0 F)	2.8 C (5.0 F)	85 years	39 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

1795 to 1987

Records set or tied on this calendar date in each year from 1795 to 1987. 1987 had 694 records.

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

Records on 10-23 in each year
Year	Records
1795	1
1802	2
1843	1
1845	1
1850	1
1851	2
1855	1
1859	2
1861	1
1863	1
1865	2
1866	1
1869	3
1871	2
1872	1
1873	2
1876	2
1878	1
1880	7
1881	2
1882	1
1883	1
1885	2
1888	1
1889	2
1890	2
1891	8
1892	3
1893	3
1894	5
1895	4
1896	2
1897	3
1898	5
1899	4
1900	8
1901	7
1902	7
1903	10
1904	7
1905	15
1906	17
1907	5
1908	19
1909	12
1910	6
1911	40
1912	50
1913	38
1914	9
1915	167
1916	290
1917	62
1918	12
1919	42
1920	262
1921	58
1922	38
1923	165
1924	160
1925	191
1926	131
1927	266
1928	120
1929	352
1930	310
1931	353
1932	310
1933	241
1934	333
1935	519
1936	490
1937	816
1938	403
1939	717
1940	304
1941	499
1942	306
1943	446
1944	283
1945	533
1946	258
1947	631
1948	251
1949	432
1950	507
1951	626
1952	432
1953	373
1954	317
1955	266
1956	587
1957	1,266
1958	255
1959	682
1960	341
1961	329
1962	141
1963	1,297
1964	264
1965	330
1966	625
1967	297
1968	175
1969	1,200
1970	617
1971	705
1972	601
1973	712
1974	653
1975	1,028
1976	879
1977	578
1978	570
1979	1,094
1980	584
1981	1,502
1982	1,071
1983	853
1984	1,261
1985	846
1986	968
1987	694
1988	619
1989	1,363
1990	954
1991	1,232
1992	1,176
1993	670
1994	558
1995	1,471
1996	1,396
1997	1,172
1998	1,221
1999	1,011
2000	1,275
2001	1,091
2002	1,868
2003	1,952
2004	1,224
2005	679
2006	1,976
2007	1,673
2008	993
2009	838
2010	683
2011	701
2012	1,017
2013	754
2014	755
2015	760
2016	460
2017	603
2018	322
2019	459
2020	1,777
2021	298
2022	1,342
2023	544
2024	674
2025	343

Download the Data

Data for records on 1987-10-23: 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	463
20 to 40	24
40 to 60	6
60 to 80	4
80 to 100	1
100 to 120	1