Weather Records on 31 July 1987

934 weather records were set or tied worldwide on 31 July 1987. Highest significance: Cleveland 3S, US.

Key Facts for 31 July 1987

On 31 July 1987, 934 weather records were set or tied at long-record stations worldwide.
489 were record highs and 218 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 21 monthly and 909 daily.
Cleveland 3S set a daily record precipitation of 129.8 mm (5.1 in) on 31 July 1987.
Across 155 earlier years (1804 to 2026) the same calendar date averaged 468 records.

Record Map

934 stations

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

Weather records on 31 July 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cleveland 3S	United States	Record daily precipitation	129.8 mm (5.1 in)	56 of 100 (Notable)
Nizhny-Chir	Russia	Record daily precipitation	35.9 mm (1.4 in)	54 of 100 (Notable)
Tlatlauquitepec (Cfe)	Mexico	Record daily precipitation	62.5 mm (2.5 in)	50 of 100 (Notable)
Hvar	Croatia	Record daily precipitation	27.4 mm (1.1 in)	49 of 100 (Notable)
Glad Valley 2 W	United States	Record daily precipitation	54.6 mm (2.1 in)	48 of 100 (Notable)
Morozovsk	Russia	Record daily precipitation	28.9 mm (1.1 in)	45 of 100 (Notable)
Irapuato	Mexico	Record low minimum temperature	10.0 C (50.0 F)	44 of 100 (Notable)
Zapotitlan de Mendez	Mexico	Record daily precipitation	129.8 mm (5.1 in)	44 of 100 (Notable)
Tangancicuaro	Mexico	Record low minimum temperature	2.8 C (37.0 F)	42 of 100 (Notable)
Manati 2 E	Puerto Rico [United States]	Record high minimum temperature	25.6 C (78.1 F)	40 of 100 (Notable)
Springfield Wwtp	United States	Record daily precipitation	63.8 mm (2.5 in)	40 of 100 (Notable)
Rifle	United States	Record low maximum temperature	19.4 C (66.9 F)	39 of 100 (Notable)
Tryon	United States	Record daily precipitation	73.2 mm (2.9 in)	39 of 100 (Notable)
Atzalan	Mexico	Record high maximum temperature	30.0 C (86.0 F)	38 of 100 (Notable)
McNary 2N	United States	Record daily precipitation	33.5 mm (1.3 in)	38 of 100 (Notable)
Brookhaven City	United States	Record daily precipitation	43.4 mm (1.7 in)	38 of 100 (Notable)
Rio Do Pouso	Brazil	Record daily precipitation	59.4 mm (2.3 in)	37 of 100 (Notable)
Hachinohe	Japan	Record daily precipitation	66.0 mm (2.6 in)	37 of 100 (Notable)
Zacapoaxtla (Smn)	Mexico	Record daily precipitation	49.8 mm (2.0 in)	37 of 100 (Notable)
Achinsk	Russia	Record low maximum temperature	11.2 C (52.2 F)	37 of 100 (Notable)
Forman 5 SSE	United States	Record high maximum temperature	37.8 C (100.0 F)	37 of 100 (Notable)
Heyuan	China	Record daily precipitation	111.6 mm (4.4 in)	36 of 100 (Notable)
Tula (Dge)	Mexico	Record daily precipitation	36.6 mm (1.4 in)	36 of 100 (Notable)
Melbourne WFO	United States	Record daily precipitation	80.3 mm (3.2 in)	36 of 100 (Notable)
New Hampton	United States	Record high minimum temperature	22.2 C (72.0 F)	36 of 100 (Notable)
Ferron	United States	Record daily precipitation	26.7 mm (1.1 in)	36 of 100 (Notable)
Monroe Wwtp	United States	Record daily precipitation	63.8 mm (2.5 in)	34 of 100 (Routine)
Dutch Harbor	United States	Record low minimum temperature	3.3 C (37.9 F)	34 of 100 (Routine)
Tirana	Albania	Record daily precipitation	31.3 mm (1.2 in)	33 of 100 (Routine)
Wuzhou	China	Record daily precipitation	86.0 mm (3.4 in)	33 of 100 (Routine)
Presa Malpais	Mexico	Record daily precipitation	35.1 mm (1.4 in)	33 of 100 (Routine)
Kazan	Russia	Record high minimum temperature	21.8 C (71.2 F)	33 of 100 (Routine)
Arvika	Sweden	Record daily precipitation	33.6 mm (1.3 in)	33 of 100 (Routine)
Petrified Forest Np	United States	Record daily precipitation	25.9 mm (1.0 in)	33 of 100 (Routine)
Bluff	United States	Record low maximum temperature	25.6 C (78.1 F)	33 of 100 (Routine)
Iowa City	United States	Record high maximum temperature	38.9 C (102.0 F)	32 of 100 (Routine)
Montevideo 1SW	United States	Record high maximum temperature	38.3 C (100.9 F)	32 of 100 (Routine)
Oakes	United States	Record high maximum temperature	40.6 C (105.1 F)	32 of 100 (Routine)
Lake Mills Wwtp	United States	Record high minimum temperature	25.0 C (77.0 F)	32 of 100 (Routine)
Grassmere	Australia	Record daily precipitation	32.0 mm (1.3 in)	31 of 100 (Routine)
Holbrook	United States	Record low maximum temperature	25.6 C (78.1 F)	31 of 100 (Routine)
Westcliffe	United States	Record high minimum temperature	13.3 C (55.9 F)	31 of 100 (Routine)
Mt Pleasant 1 SW	United States	Record high maximum temperature	38.9 C (102.0 F)	31 of 100 (Routine)
Detroit Lakes 1 NNE	United States	Record high maximum temperature	36.1 C (97.0 F)	31 of 100 (Routine)
Magdalena	United States	Record high maximum temperature	37.8 C (100.0 F)	31 of 100 (Routine)
Kennebec	United States	Record high minimum temperature	24.4 C (75.9 F)	31 of 100 (Routine)
Sealy	United States	Record daily precipitation	60.2 mm (2.4 in)	31 of 100 (Routine)
Miles City AP	United States	Record daily precipitation	26.9 mm (1.1 in)	31 of 100 (Routine)
San Juan de Los Planes	Mexico	Record daily precipitation	28.2 mm (1.1 in)	30 of 100 (Routine)
San Antonio Sur	Mexico	Record low maximum temperature	26.1 C (79.0 F)	30 of 100 (Routine)
Divnoe	Russia	Record daily precipitation	34.7 mm (1.4 in)	30 of 100 (Routine)
Republic	United States	Record low maximum temperature	18.9 C (66.0 F)	30 of 100 (Routine)
Fargo Hector Intl AP	United States	Record high maximum temperature	38.3 C (100.9 F)	30 of 100 (Routine)
Chilapa (Dge)	Mexico	Record daily precipitation	50.0 mm (2.0 in)	29 of 100 (Routine)
Huahuaxtla (Cfe)	Mexico	Record daily precipitation	62.0 mm (2.4 in)	29 of 100 (Routine)
De Sabla	United States	Record low minimum temperature	7.2 C (45.0 F)	29 of 100 (Routine)
Merced	United States	Record low minimum temperature	11.1 C (52.0 F)	29 of 100 (Routine)
Columbus Junction	United States	Record high maximum temperature	41.1 C (106.0 F)	29 of 100 (Routine)
Broadus	United States	Record high minimum temperature	21.1 C (70.0 F)	29 of 100 (Routine)
Mohall	United States	Record daily precipitation	34.5 mm (1.4 in)	29 of 100 (Routine)

Counts by Type and Timescale

934 records

Records set or tied on 31 July 1987 by type: Highest daily maximum 202, Lowest daily maximum 146, Highest daily minimum 287, Lowest daily minimum 72, Heaviest daily rainfall 227.

Records on 31 July 1987 by type
Record type	Records
Highest daily maximum	202
Lowest daily maximum	146
Highest daily minimum	287
Lowest daily minimum	72
Heaviest daily rainfall	227
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 July 1987 by timescale: all-time 4, monthly 21, daily 909.

How Much Records Were Beaten By

674 broken records

Margins by which the 674 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 98.6. Ties are not counted.

Top 20 by Significance

31 July 1987

Top 20 records on 31 July 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 July 1987	Cleveland 3S, US	daily rain	129.8 mm (5.1 in)	98.6 mm (3.9 in)	41 years	56 of 100 (Notable)
31 July 1987	Nizhny-Chir, RU	daily rain	35.9 mm (1.4 in)	31.6 mm (1.2 in)	32 years	54 of 100 (Notable)
31 July 1987	Tlatlauquitepec (Cfe), MX	daily rain	62.5 mm (2.5 in)	44.7 mm (1.8 in)	25 years	50 of 100 (Notable)
31 July 1987	Hvar, HR	daily rain	27.4 mm (1.1 in)	8.1 mm (0.32 in)	118 years	49 of 100 (Notable)
31 July 1987	Glad Valley 2 W, US	daily rain	54.6 mm (2.1 in)	49.5 mm (1.9 in)	16 years	48 of 100 (Notable)
31 July 1987	Morozovsk, RU	daily rain	28.9 mm (1.1 in)	21.7 mm (0.9 in)	37 years	45 of 100 (Notable)
31 July 1987	Irapuato, MX	daily low min	10.0 C (50.0 F)	2.8 C (5.0 F)	50 years	44 of 100 (Notable)
31 July 1987	Zapotitlan de Mendez, MX	daily rain	129.8 mm (5.1 in)	59.9 mm (2.4 in)	24 years	44 of 100 (Notable)
31 July 1987	Tangancicuaro, MX	daily low min	2.8 C (37.0 F)	7.2 C (13.0 F)	17 years	42 of 100 (Notable)
31 July 1987	Manati 2 E, PR	daily high min	25.6 C (78.1 F)	1.7 C (3.1 F)	62 years	40 of 100 (Notable)
31 July 1987	Springfield Wwtp, US	daily rain	63.8 mm (2.5 in)	37.6 mm (1.5 in)	25 years	40 of 100 (Notable)
31 July 1987	Rifle, US	daily low max	19.4 C (66.9 F)	3.9 C (7.0 F)	65 years	39 of 100 (Notable)
31 July 1987	Tryon, US	daily rain	73.2 mm (2.9 in)	20.9 mm (0.8 in)	57 years	39 of 100 (Notable)
31 July 1987	Atzalan, MX	monthly high max	30.0 C (86.0 F)	1.7 C (3.1 F)	47 years	38 of 100 (Notable)
31 July 1987	McNary 2N, US	daily rain	33.5 mm (1.3 in)	16.5 mm (0.6 in)	32 years	38 of 100 (Notable)
31 July 1987	Brookhaven City, US	daily rain	43.4 mm (1.7 in)	16.7 mm (0.7 in)	56 years	38 of 100 (Notable)
31 July 1987	Rio Do Pouso, BR	daily rain	59.4 mm (2.3 in)	32.2 mm (1.3 in)	26 years	37 of 100 (Notable)
31 July 1987	Hachinohe, JP	daily rain	66.0 mm (2.6 in)	39.0 mm (1.5 in)	14 years	37 of 100 (Notable)
31 July 1987	Zacapoaxtla (Smn), MX	daily rain	49.8 mm (2.0 in)	26.9 mm (1.1 in)	40 years	37 of 100 (Notable)
31 July 1987	Achinsk, RU	monthly low max	11.2 C (52.2 F)	1.5 C (2.7 F)	54 years	37 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

1804 to 1987

Records set or tied on this calendar date in each year from 1804 to 1987. 1987 had 934 records.

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

Records on 07-31 in each year
Year	Records
1804	1
1815	1
1816	1
1828	1
1834	1
1839	1
1840	1
1841	2
1851	1
1858	2
1860	4
1863	1
1866	1
1873	2
1876	1
1879	1
1884	1
1885	1
1886	1
1887	5
1889	2
1890	2
1891	1
1892	1
1893	3
1894	2
1896	2
1897	2
1898	5
1900	1
1901	3
1902	4
1903	16
1904	12
1905	10
1906	14
1907	17
1908	22
1909	15
1910	21
1911	29
1912	14
1913	31
1914	28
1915	71
1916	63
1917	126
1918	39
1919	27
1920	168
1921	112
1922	24
1923	236
1924	97
1925	349
1926	226
1927	161
1928	145
1929	134
1930	143
1931	441
1932	314
1933	504
1934	449
1935	418
1936	548
1937	297
1938	417
1939	357
1940	415
1941	323
1942	342
1943	342
1944	312
1945	499
1946	426
1947	341
1948	341
1949	406
1950	511
1951	364
1952	472
1953	414
1954	459
1955	813
1956	574
1957	268
1958	374
1959	424
1960	622
1961	504
1962	348
1963	294
1964	637
1965	858
1966	606
1967	326
1968	637
1969	440
1970	576
1971	1,850
1972	667
1973	583
1974	363
1975	1,386
1976	530
1977	543
1978	754
1979	501
1980	1,047
1981	672
1982	767
1983	901
1984	777
1985	1,065
1986	1,021
1987	934
1988	940
1989	1,753
1990	911
1991	647
1992	1,169
1993	1,031
1994	1,207
1995	1,223
1996	1,084
1997	984
1998	1,195
1999	1,643
2000	1,001
2001	1,414
2002	1,080
2003	1,157
2004	779
2005	742
2006	1,405
2007	1,023
2008	911
2009	1,156
2010	1,485
2011	1,040
2012	712
2013	469
2014	1,000
2015	948
2016	501
2017	485
2018	1,135
2019	551
2020	1,034
2021	1,020
2022	861
2023	671
2024	748
2025	836
2026	754

Download the Data

Data for records on 1987-07-31: 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	642
20 to 40	24
40 to 60	6
60 to 80	1
80 to 100	1