Weather Records on 21 July 1987

1,025 weather records were set or tied worldwide on 21 July 1987. Highest significance: Barrow AP, US.

Key Facts for 21 July 1987

On 21 July 1987, 1,025 weather records were set or tied at long-record stations worldwide.
323 were record highs and 358 were record lows, counting maximum and minimum temperature.
By timescale, 16 were all-time records, 50 monthly and 959 daily.
Barrow AP set an all-time record daily precipitation of 32.5 mm (1.3 in) on 21 July 1987.
Across 159 earlier years (1794 to 2026) the same calendar date averaged 463 records.

Record Map

1,025 stations

1,025 station records on 21 July 1987 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 July 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
Barrow AP	United States	Record daily precipitation	32.5 mm (1.3 in)	84 of 100 (Exceptional)
Bukalong Station	Australia	Record daily precipitation	49.0 mm (1.9 in)	79 of 100 (Major)
Chaska	United States	Record daily precipitation	198.9 mm (7.8 in)	75 of 100 (Major)
Bendoc Park	Australia	Record daily precipitation	57.0 mm (2.2 in)	73 of 100 (Major)
Eden (Caravan Park)	Australia	Record daily precipitation	49.4 mm (1.9 in)	69 of 100 (Major)
Stavoren_1	Netherlands	Record daily precipitation	91.8 mm (3.6 in)	69 of 100 (Major)
Ochoco Rs	United States	Record daily precipitation	49.8 mm (2.0 in)	65 of 100 (Major)
Mitchell 2 NW	United States	Record daily precipitation	44.5 mm (1.8 in)	64 of 100 (Major)
Delegate Post Office	Australia	Record daily precipitation	40.2 mm (1.6 in)	63 of 100 (Major)
Grantsville 2W	United States	Record daily precipitation	38.6 mm (1.5 in)	61 of 100 (Major)
Hillsboro 3 N	United States	Record daily precipitation	162.1 mm (6.4 in)	60 of 100 (Major)
Geyser Rch	United States	Record daily precipitation	40.6 mm (1.6 in)	58 of 100 (Notable)
Delegate Station	Australia	Record daily precipitation	40.2 mm (1.6 in)	57 of 100 (Notable)
Pambula Post Office	Australia	Record daily precipitation	75.2 mm (3.0 in)	55 of 100 (Notable)
Missoula Intl AP	United States	Record daily precipitation	41.1 mm (1.6 in)	55 of 100 (Notable)
Wendover AP AWOS	United States	Record daily precipitation	25.4 mm (1.0 in)	55 of 100 (Notable)
Fremont 5 NW	United States	Record daily precipitation	33.0 mm (1.3 in)	53 of 100 (Notable)
McGill	United States	Record daily precipitation	26.7 mm (1.1 in)	51 of 100 (Notable)
Orbost (Comparison)	Australia	Record daily precipitation	27.2 mm (1.1 in)	50 of 100 (Notable)
New London	United States	Record daily precipitation	56.4 mm (2.2 in)	49 of 100 (Notable)
Waiakea Scd 88.2	United States	Record daily precipitation	167.6 mm (6.6 in)	49 of 100 (Notable)
Troitsk	Russia	Record daily precipitation	59.4 mm (2.3 in)	48 of 100 (Notable)
Mc Clusky	United States	Record daily precipitation	36.6 mm (1.4 in)	48 of 100 (Notable)
Vestmannaeyjar	Iceland	Record daily precipitation	45.6 mm (1.8 in)	47 of 100 (Notable)
Elberta	United States	Record daily precipitation	27.2 mm (1.1 in)	47 of 100 (Notable)
Venlo	Netherlands	Record daily precipitation	67.3 mm (2.6 in)	46 of 100 (Notable)
Tooele	United States	Record daily precipitation	25.9 mm (1.0 in)	46 of 100 (Notable)
Lake Tyers	Australia	Record daily precipitation	52.8 mm (2.1 in)	45 of 100 (Notable)
Wittenberg	Germany	Record daily precipitation	45.7 mm (1.8 in)	45 of 100 (Notable)
Geyser Rch	United States	Record low maximum temperature	22.2 C (72.0 F)	45 of 100 (Notable)
Lehman Caves Nm	United States	Record daily precipitation	29.0 mm (1.1 in)	45 of 100 (Notable)
Bombala (Therry Street)	Australia	Record daily precipitation	37.0 mm (1.5 in)	43 of 100 (Notable)
Gorinchem	Netherlands	Record daily precipitation	38.5 mm (1.5 in)	43 of 100 (Notable)
Park City G.C.	United States	Record daily precipitation	27.2 mm (1.1 in)	43 of 100 (Notable)
Kisinev	Moldova	Record high minimum temperature	21.8 C (71.2 F)	42 of 100 (Notable)
Rekken	Netherlands	Record daily precipitation	43.6 mm (1.7 in)	42 of 100 (Notable)
Ft Bidwell	United States	Record low maximum temperature	16.7 C (62.1 F)	42 of 100 (Notable)
San Bernardino F S 226	United States	Record low maximum temperature	25.0 C (77.0 F)	42 of 100 (Notable)
Usher Twr	United States	Record daily precipitation	87.1 mm (3.4 in)	42 of 100 (Notable)
Campbell	United States	Record daily precipitation	33.0 mm (1.3 in)	42 of 100 (Notable)
Ogden Sugar Factory	United States	Record daily precipitation	32.5 mm (1.3 in)	42 of 100 (Notable)
Candelo Post Office	Australia	Record daily precipitation	58.0 mm (2.3 in)	41 of 100 (Notable)
Healdsburg	United States	Record low maximum temperature	18.9 C (66.0 F)	41 of 100 (Notable)
Sonoma	United States	Record low maximum temperature	22.8 C (73.0 F)	41 of 100 (Notable)
Vida 6 NE	United States	Record daily precipitation	38.4 mm (1.5 in)	41 of 100 (Notable)
Newport River	United States	Record high minimum temperature	27.2 C (81.0 F)	41 of 100 (Notable)
Cross City 1 E	United States	Record daily precipitation	126.0 mm (5.0 in)	40 of 100 (Notable)
Kingstree	United States	Record low minimum temperature	13.3 C (55.9 F)	40 of 100 (Notable)
Chazy	United States	Record daily precipitation	36.8 mm (1.4 in)	39 of 100 (Notable)
Nowa Nowa	Australia	Record daily precipitation	31.0 mm (1.2 in)	38 of 100 (Notable)
Buzau	Romania	Record high maximum temperature	37.4 C (99.3 F)	38 of 100 (Notable)
Homestead Exp STN	United States	Record high minimum temperature	25.6 C (78.1 F)	38 of 100 (Notable)
Boyds 2 NW	United States	Record high minimum temperature	25.6 C (78.1 F)	38 of 100 (Notable)
City Creek Wtp	United States	Record daily precipitation	31.8 mm (1.3 in)	38 of 100 (Notable)
Nanping	China	Record high minimum temperature	28.5 C (83.3 F)	37 of 100 (Notable)
Milledgeville	United States	Record low minimum temperature	16.1 C (61.0 F)	37 of 100 (Notable)
Ellenburg Depot	United States	Record daily precipitation	32.3 mm (1.3 in)	37 of 100 (Notable)
Hana AP 355	United States	Record daily precipitation	69.9 mm (2.8 in)	37 of 100 (Notable)
Williston Sloulin Fld	United States	Record low maximum temperature	17.2 C (63.0 F)	37 of 100 (Notable)
Ft Peck Pwr Plt	United States	Record daily precipitation	41.9 mm (1.6 in)	36 of 100 (Notable)

Counts by Type and Timescale

1,025 records

Records set or tied on 21 July 1987 by type: Highest daily maximum 164, Lowest daily maximum 232, Highest daily minimum 159, Lowest daily minimum 126, Heaviest daily rainfall 344.

Records on 21 July 1987 by type
Record type	Records
Highest daily maximum	164
Lowest daily maximum	232
Highest daily minimum	159
Lowest daily minimum	126
Heaviest daily rainfall	344
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 July 1987 by timescale: all-time 16, monthly 50, daily 959.

How Much Records Were Beaten By

812 broken records

Margins by which the 812 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 114.8. Ties are not counted.

Top 20 by Significance

21 July 1987

Top 20 records on 21 July 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 1987	Barrow AP, US	all-time rain	32.5 mm (1.3 in)	11.2 mm (0.4 in)	64 years	84 of 100 (Exceptional)
21 July 1987	Bukalong Station, AU	daily rain	49.0 mm (1.9 in)	40.9 mm (1.6 in)	96 years	79 of 100 (Major)
21 July 1987	Chaska, US	all-time rain	198.9 mm (7.8 in)	72.9 mm (2.9 in)	32 years	75 of 100 (Major)
21 July 1987	Bendoc Park, AU	daily rain	57.0 mm (2.2 in)	41.8 mm (1.6 in)	76 years	73 of 100 (Major)
21 July 1987	Eden (Caravan Park), AU	daily rain	49.4 mm (1.9 in)	34.2 mm (1.3 in)	110 years	69 of 100 (Major)
21 July 1987	Stavoren_1, NL	all-time rain	91.8 mm (3.6 in)	36.2 mm (1.4 in)	21 years	69 of 100 (Major)
21 July 1987	Ochoco Rs, US	daily rain	49.8 mm (2.0 in)	28.2 mm (1.1 in)	66 years	65 of 100 (Major)
21 July 1987	Mitchell 2 NW, US	monthly rain	44.5 mm (1.8 in)	20.9 mm (0.8 in)	21 years	64 of 100 (Major)
21 July 1987	Delegate Post Office, AU	daily rain	40.2 mm (1.6 in)	26.2 mm (1.0 in)	74 years	63 of 100 (Major)
21 July 1987	Grantsville 2W, US	monthly rain	38.6 mm (1.5 in)	10.7 mm (0.4 in)	73 years	61 of 100 (Major)
21 July 1987	Hillsboro 3 N, US	all-time rain	162.1 mm (6.4 in)	12.2 mm (0.5 in)	78 years	60 of 100 (Major)
21 July 1987	Geyser Rch, US	daily rain	40.6 mm (1.6 in)	37.6 mm (1.5 in)	36 years	58 of 100 (Notable)
21 July 1987	Delegate Station, AU	daily rain	40.2 mm (1.6 in)	32.8 mm (1.3 in)	37 years	57 of 100 (Notable)
21 July 1987	Pambula Post Office, AU	daily rain	75.2 mm (3.0 in)	61.0 mm (2.4 in)	28 years	55 of 100 (Notable)
21 July 1987	Missoula Intl AP, US	monthly rain	41.1 mm (1.6 in)	18.0 mm (0.7 in)	4 years	55 of 100 (Notable)
21 July 1987	Wendover AP AWOS, US	monthly rain	25.4 mm (1.0 in)	6.3 mm (0.25 in)	69 years	55 of 100 (Notable)
21 July 1987	Fremont 5 NW, US	daily rain	33.0 mm (1.3 in)	24.9 mm (1.0 in)	21 years	53 of 100 (Notable)
21 July 1987	McGill, US	daily rain	26.7 mm (1.1 in)	6.6 mm (0.26 in)	93 years	51 of 100 (Notable)
21 July 1987	Orbost (Comparison), AU	daily rain	27.2 mm (1.1 in)	15.5 mm (0.6 in)	90 years	50 of 100 (Notable)
21 July 1987	New London, US	daily rain	56.4 mm (2.2 in)	20.8 mm (0.8 in)	80 years	49 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

1794 to 1987

Records set or tied on this calendar date in each year from 1794 to 1987. 1987 had 1,025 records.

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

Records on 07-21 in each year
Year	Records
1794	1
1795	1
1796	1
1797	1
1813	2
1832	2
1837	1
1839	1
1843	1
1844	2
1854	1
1859	3
1865	3
1868	3
1872	1
1876	1
1879	2
1880	1
1881	1
1884	1
1885	1
1886	2
1888	2
1889	3
1890	2
1892	3
1893	3
1894	3
1895	1
1896	3
1897	4
1898	7
1899	2
1900	6
1901	13
1902	12
1903	10
1904	8
1905	13
1906	13
1907	12
1908	25
1909	18
1910	12
1911	37
1912	52
1913	41
1914	48
1915	81
1916	72
1917	136
1918	130
1919	51
1920	33
1921	55
1922	48
1923	132
1924	286
1925	202
1926	401
1927	191
1928	205
1929	360
1930	521
1931	549
1932	322
1933	208
1934	965
1935	236
1936	322
1937	253
1938	638
1939	415
1940	318
1941	226
1942	318
1943	253
1944	716
1945	300
1946	398
1947	795
1948	403
1949	603
1950	662
1951	427
1952	657
1953	351
1954	656
1955	582
1956	490
1957	447
1958	531
1959	940
1960	651
1961	388
1962	263
1963	470
1964	457
1965	748
1966	626
1967	313
1968	334
1969	636
1970	1,241
1971	475
1972	1,046
1973	871
1974	536
1975	380
1976	477
1977	708
1978	1,155
1979	964
1980	926
1981	1,352
1982	588
1983	1,234
1984	764
1985	554
1986	791
1987	1,025
1988	1,015
1989	973
1990	914
1991	812
1992	1,562
1993	866
1994	773
1995	1,247
1996	1,141
1997	849
1998	1,674
1999	814
2000	1,230
2001	889
2002	990
2003	1,250
2004	694
2005	1,420
2006	1,479
2007	1,145
2008	989
2009	1,306
2010	1,148
2011	1,414
2012	815
2013	526
2014	762
2015	704
2016	645
2017	433
2018	942
2019	755
2020	363
2021	574
2022	866
2023	816
2024	873
2025	881
2026	874

Download the Data

Data for records on 1987-07-21: 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 20	765
20 to 40	39
40 to 60	4
60 to 80	3
80 to 100	0
100 to 120	1