Weather Records on 23 May 1987

745 weather records were set or tied worldwide on 23 May 1987. Highest significance: Marathon, US.

Key Facts for 23 May 1987

On 23 May 1987, 745 weather records were set or tied at long-record stations worldwide.
252 were record highs and 302 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 18 monthly and 724 daily.
Marathon set a daily record precipitation of 75.2 mm (3.0 in) on 23 May 1987.
Across 158 earlier years (1793 to 2026) the same calendar date averaged 461 records.

Record Map

745 stations

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

Weather records on 23 May 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
Marathon	United States	Record daily precipitation	75.2 mm (3.0 in)	75 of 100 (Major)
Socorro	United States	Record daily precipitation	48.3 mm (1.9 in)	62 of 100 (Major)
Fukui	Japan	Record daily precipitation	121.5 mm (4.8 in)	61 of 100 (Major)
Hobart Muni AP	United States	Record daily precipitation	102.4 mm (4.0 in)	56 of 100 (Notable)
Roosevelt	United States	Record daily precipitation	163.1 mm (6.4 in)	54 of 100 (Notable)
Altus Irig Rsch STN	United States	Record daily precipitation	100.3 mm (3.9 in)	49 of 100 (Notable)
Tatum	United States	Record daily precipitation	67.1 mm (2.6 in)	47 of 100 (Notable)
Odessa	United States	Record daily precipitation	89.2 mm (3.5 in)	46 of 100 (Notable)
Rzev	Russia	Record daily precipitation	27.7 mm (1.1 in)	45 of 100 (Notable)
Spur	United States	Record daily precipitation	63.0 mm (2.5 in)	45 of 100 (Notable)
Cuatro Cienegas (Smn)	Mexico	Record daily precipitation	45.0 mm (1.8 in)	44 of 100 (Notable)
Springfield 7 WSW	United States	Record daily precipitation	49.0 mm (1.9 in)	43 of 100 (Notable)
Flatwillow 4 ENE	United States	Record daily precipitation	38.1 mm (1.5 in)	43 of 100 (Notable)
Bayfield 6 N	United States	Record low maximum temperature	4.4 C (39.9 F)	43 of 100 (Notable)
Plainview	United States	Record daily precipitation	63.8 mm (2.5 in)	42 of 100 (Notable)
Kanazawa	Japan	Record daily precipitation	80.5 mm (3.2 in)	41 of 100 (Notable)
Irapuato	Mexico	Record low minimum temperature	7.8 C (46.0 F)	41 of 100 (Notable)
Sibley	United States	Record low maximum temperature	8.3 C (46.9 F)	41 of 100 (Notable)
Hollis 5E	United States	Record daily precipitation	62.0 mm (2.4 in)	41 of 100 (Notable)
Quanah 2 SW	United States	Record daily precipitation	68.6 mm (2.7 in)	41 of 100 (Notable)
Wien	Austria	Record low maximum temperature	9.4 C (48.9 F)	40 of 100 (Notable)
Muleshoe #1	United States	Record daily precipitation	62.2 mm (2.4 in)	40 of 100 (Notable)
Medford	United States	Record low maximum temperature	7.8 C (46.0 F)	40 of 100 (Notable)
Rock Rapids	United States	Record low maximum temperature	9.4 C (48.9 F)	39 of 100 (Notable)
Castlewood	United States	Record low maximum temperature	10.0 C (50.0 F)	39 of 100 (Notable)
Yakutat AP	United States	Record daily precipitation	82.6 mm (3.3 in)	39 of 100 (Notable)
Stuttgart-Stadt	Germany	Record low minimum temperature	1.2 C (34.2 F)	38 of 100 (Notable)
Pedernal 9 E	United States	Record daily precipitation	43.2 mm (1.7 in)	38 of 100 (Notable)
Clark	United States	Record low maximum temperature	11.1 C (52.0 F)	38 of 100 (Notable)
Loop	United States	Record daily precipitation	61.0 mm (2.4 in)	38 of 100 (Notable)
Midland Odessa	United States	Record daily precipitation	56.1 mm (2.2 in)	38 of 100 (Notable)
Manati 2 E	Puerto Rico [United States]	Record high minimum temperature	23.9 C (75.0 F)	37 of 100 (Notable)
Faribault	United States	Record low maximum temperature	9.4 C (48.9 F)	37 of 100 (Notable)
Winnebago	United States	Record low maximum temperature	9.4 C (48.9 F)	37 of 100 (Notable)
Mellette 4 W	United States	Record low maximum temperature	13.9 C (57.0 F)	37 of 100 (Notable)
Levelland	United States	Record daily precipitation	78.0 mm (3.1 in)	37 of 100 (Notable)
Cuyamaca	United States	Record low minimum temperature	-2.8 C (27.0 F)	36 of 100 (Notable)
Hutchinson 1 N	United States	Record low maximum temperature	10.0 C (50.0 F)	36 of 100 (Notable)
Wessington Springs	United States	Record low maximum temperature	15.0 C (59.0 F)	36 of 100 (Notable)
Prentice #2	United States	Record low maximum temperature	5.6 C (42.1 F)	36 of 100 (Notable)
Stanley Wwtp	United States	Record low maximum temperature	7.8 C (46.0 F)	36 of 100 (Notable)
El Rucio	Mexico	Record daily precipitation	30.0 mm (1.2 in)	35 of 100 (Notable)
Bergland Dam	United States	Record low maximum temperature	2.8 C (37.0 F)	35 of 100 (Notable)
Caledonia	United States	Record low maximum temperature	11.7 C (53.1 F)	35 of 100 (Notable)
Wakayama	Japan	Record daily precipitation	62.0 mm (2.4 in)	34 of 100 (Routine)
Vega de Alatorre	Mexico	Record low minimum temperature	13.9 C (57.0 F)	34 of 100 (Routine)
Grundy Ctr	United States	Record low maximum temperature	13.3 C (55.9 F)	34 of 100 (Routine)
Danbury	United States	Record low maximum temperature	7.2 C (45.0 F)	34 of 100 (Routine)
Lancaster 4 WSW	United States	Record low maximum temperature	13.3 C (55.9 F)	34 of 100 (Routine)
Simferopol	Ukraine	Record low maximum temperature	13.9 C (57.0 F)	33 of 100 (Routine)
Mangum	United States	Record daily precipitation	54.4 mm (2.1 in)	33 of 100 (Routine)
Boquillas Rs	United States	Record daily precipitation	46.5 mm (1.8 in)	33 of 100 (Routine)
Long Lake Dam	United States	Record low maximum temperature	5.0 C (41.0 F)	33 of 100 (Routine)
Clinton #1	United States	Record low maximum temperature	13.9 C (57.0 F)	32 of 100 (Routine)
Grand Rapids Forestry Lab	United States	Record low maximum temperature	6.7 C (44.1 F)	32 of 100 (Routine)
Moorestown 4 E	United States	Record high minimum temperature	18.9 C (66.0 F)	32 of 100 (Routine)
Cherry Valley 2 NNE	United States	Record daily precipitation	41.7 mm (1.6 in)	32 of 100 (Routine)
Gail	United States	Record daily precipitation	68.1 mm (2.7 in)	32 of 100 (Routine)
Huetamo	Mexico	Record high maximum temperature	47.2 C (117.0 F)	31 of 100 (Routine)
Lauchapan	Mexico	Record low minimum temperature	15.0 C (59.0 F)	31 of 100 (Routine)

Counts by Type and Timescale

745 records

Records set or tied on 23 May 1987 by type: Highest daily maximum 100, Lowest daily maximum 234, Highest daily minimum 152, Lowest daily minimum 68, Heaviest daily rainfall 189, Deepest snow cover 2.

Records on 23 May 1987 by type
Record type	Records
Highest daily maximum	100
Lowest daily maximum	234
Highest daily minimum	152
Lowest daily minimum	68
Heaviest daily rainfall	189
Heaviest daily snowfall	0
Deepest snow cover	2

Records on 23 May 1987 by timescale: all-time 3, monthly 18, daily 724.

How Much Records Were Beaten By

621 broken records

Margins by which the 621 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 150.0. Ties are not counted.

Top 20 by Significance

23 May 1987

Top 20 records on 23 May 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 May 1987	Marathon, US	daily rain	75.2 mm (3.0 in)	49.8 mm (2.0 in)	89 years	75 of 100 (Major)
23 May 1987	Socorro, US	daily rain	48.3 mm (1.9 in)	32.3 mm (1.3 in)	45 years	62 of 100 (Major)
23 May 1987	Fukui, JP	monthly rain	121.5 mm (4.8 in)	50.3 mm (2.0 in)	33 years	61 of 100 (Major)
23 May 1987	Hobart Muni AP, US	daily rain	102.4 mm (4.0 in)	71.2 mm (2.8 in)	32 years	56 of 100 (Notable)
23 May 1987	Roosevelt, US	monthly rain	163.1 mm (6.4 in)	55.1 mm (2.2 in)	35 years	54 of 100 (Notable)
23 May 1987	Altus Irig Rsch STN, US	daily rain	100.3 mm (3.9 in)	45.7 mm (1.8 in)	40 years	49 of 100 (Notable)
23 May 1987	Tatum, US	daily rain	67.1 mm (2.6 in)	41.2 mm (1.6 in)	45 years	47 of 100 (Notable)
23 May 1987	Odessa, US	monthly rain	89.2 mm (3.5 in)	32.6 mm (1.3 in)	18 years	46 of 100 (Notable)
23 May 1987	Rzev, RU	daily rain	27.7 mm (1.1 in)	14.8 mm (0.6 in)	38 years	45 of 100 (Notable)
23 May 1987	Spur, US	daily rain	63.0 mm (2.5 in)	39.1 mm (1.5 in)	32 years	45 of 100 (Notable)
23 May 1987	Cuatro Cienegas (Smn), MX	daily rain	45.0 mm (1.8 in)	20.1 mm (0.8 in)	37 years	44 of 100 (Notable)
23 May 1987	Springfield 7 WSW, US	daily rain	49.0 mm (1.9 in)	37.1 mm (1.5 in)	28 years	43 of 100 (Notable)
23 May 1987	Flatwillow 4 ENE, US	daily rain	38.1 mm (1.5 in)	20.1 mm (0.8 in)	40 years	43 of 100 (Notable)
23 May 1987	Bayfield 6 N, US	daily low max	4.4 C (39.9 F)	4.5 C (8.1 F)	92 years	43 of 100 (Notable)
23 May 1987	Plainview, US	daily rain	63.8 mm (2.5 in)	29.8 mm (1.2 in)	45 years	42 of 100 (Notable)
23 May 1987	Kanazawa, JP	daily rain	80.5 mm (3.2 in)	39.1 mm (1.5 in)	33 years	41 of 100 (Notable)
23 May 1987	Irapuato, MX	daily low min	7.8 C (46.0 F)	3.9 C (7.0 F)	50 years	41 of 100 (Notable)
23 May 1987	Sibley, US	daily low max	8.3 C (46.9 F)	6.1 C (11.0 F)	73 years	41 of 100 (Notable)
23 May 1987	Hollis 5E, US	daily rain	62.0 mm (2.4 in)	34.1 mm (1.3 in)	52 years	41 of 100 (Notable)
23 May 1987	Quanah 2 SW, US	daily rain	68.6 mm (2.7 in)	15.3 mm (0.6 in)	78 years	41 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

1793 to 1987

Records set or tied on this calendar date in each year from 1793 to 1987. 1987 had 745 records.

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

Records on 05-23 in each year
Year	Records
1793	1
1794	1
1798	1
1817	1
1818	1
1837	3
1845	1
1847	2
1857	1
1863	1
1865	2
1866	5
1867	7
1870	2
1871	1
1875	1
1877	1
1878	1
1880	1
1884	2
1885	2
1886	4
1887	1
1889	2
1891	11
1893	3
1894	1
1895	3
1896	4
1897	3
1898	8
1899	3
1900	12
1901	3
1902	12
1903	6
1904	14
1905	10
1906	23
1907	11
1908	13
1909	23
1910	26
1911	39
1912	31
1913	29
1914	33
1915	13
1916	44
1917	58
1918	36
1919	120
1920	37
1921	92
1922	82
1923	99
1924	230
1925	325
1926	204
1927	243
1928	177
1929	221
1930	199
1931	719
1932	358
1933	443
1934	203
1935	369
1936	568
1937	156
1938	390
1939	415
1940	324
1941	676
1942	235
1943	342
1944	784
1945	241
1946	311
1947	285
1948	273
1949	612
1950	490
1951	400
1952	597
1953	777
1954	496
1955	650
1956	498
1957	653
1958	744
1959	486
1960	395
1961	412
1962	677
1963	1,153
1964	964
1965	477
1966	391
1967	1,055
1968	578
1969	437
1970	314
1971	659
1972	449
1973	371
1974	678
1975	855
1976	556
1977	596
1978	703
1979	730
1980	1,202
1981	862
1982	717
1983	1,123
1984	1,027
1985	608
1986	626
1987	745
1988	662
1989	1,106
1990	1,660
1991	1,244
1992	1,423
1993	845
1994	690
1995	1,106
1996	1,114
1997	983
1998	947
1999	705
2000	1,372
2001	1,441
2002	1,537
2003	954
2004	1,275
2005	908
2006	1,122
2007	1,170
2008	1,472
2009	805
2010	1,275
2011	1,001
2012	1,006
2013	929
2014	858
2015	667
2016	679
2017	602
2018	552
2019	1,044
2020	631
2021	837
2022	807
2023	316
2024	760
2025	865
2026	804

Download the Data

Data for records on 1987-05-23: 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	577
20 to 40	31
40 to 60	11
60 to 80	1
80 to 100	0
100 to 120	0
120 to 140	0
140 to 160	1