Weather Records on 4 September 1987

685 weather records were set or tied worldwide on 4 September 1987. Highest significance: Bad Salzuflen, DE.

Key Facts for 4 September 1987

On 4 September 1987, 685 weather records were set or tied at long-record stations worldwide.
191 were record highs and 278 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 22 monthly and 658 daily.
Bad Salzuflen set a monthly record daily precipitation of 63.2 mm (2.5 in) on 4 September 1987.
Across 165 earlier years (1802 to 2026) the same calendar date averaged 450 records.

Record Map

685 stations

685 station records on 4 September 1987 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 September 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bad Salzuflen	Germany	Record daily precipitation	63.2 mm (2.5 in)	70 of 100 (Major)
Hannover	Germany	Record daily precipitation	43.0 mm (1.7 in)	59 of 100 (Notable)
Denekamp	Netherlands	Record daily precipitation	71.3 mm (2.8 in)	56 of 100 (Notable)
Ust-Umalta	Russia	Record daily precipitation	64.8 mm (2.6 in)	56 of 100 (Notable)
Koloko Rsvr 1137	United States	Record daily precipitation	95.5 mm (3.8 in)	53 of 100 (Notable)
Lathen	Germany	Record daily precipitation	40.7 mm (1.6 in)	50 of 100 (Notable)
Homburg/Saar	Germany	Record daily precipitation	54.5 mm (2.1 in)	49 of 100 (Notable)
Georgetown 2 E	United States	Record daily precipitation	91.4 mm (3.6 in)	49 of 100 (Notable)
Herford	Germany	Record daily precipitation	72.9 mm (2.9 in)	48 of 100 (Notable)
Tucson WFO	United States	Record low maximum temperature	26.1 C (79.0 F)	47 of 100 (Notable)
Gernrode	Germany	Record daily precipitation	26.2 mm (1.0 in)	46 of 100 (Notable)
Heilbronn	Germany	Record daily precipitation	34.5 mm (1.4 in)	46 of 100 (Notable)
Choshi	Japan	Record daily precipitation	119.0 mm (4.7 in)	46 of 100 (Notable)
Yichang	China	Record daily precipitation	106.1 mm (4.2 in)	45 of 100 (Notable)
Bad Ems	Germany	Record daily precipitation	38.2 mm (1.5 in)	45 of 100 (Notable)
Bad Liebenzell	Germany	Record daily precipitation	28.3 mm (1.1 in)	42 of 100 (Notable)
Nordhorn	Germany	Record daily precipitation	62.0 mm (2.4 in)	42 of 100 (Notable)
Nuevo Ixcatlan	Mexico	Record low minimum temperature	16.7 C (62.1 F)	42 of 100 (Notable)
Bundabaroo	Australia	Record daily precipitation	38.0 mm (1.5 in)	41 of 100 (Notable)
Aurich	Germany	Record daily precipitation	27.0 mm (1.1 in)	41 of 100 (Notable)
Visby_Flygplats	Sweden	Record low minimum temperature	3.4 C (38.1 F)	40 of 100 (Notable)
Moore Haven Lock 1	United States	Record daily precipitation	110.5 mm (4.4 in)	40 of 100 (Notable)
Blue Hill Coop	United States	Record low minimum temperature	7.8 C (46.0 F)	40 of 100 (Notable)
Portsmouth-Sciotoville	United States	Record low minimum temperature	6.1 C (43.0 F)	40 of 100 (Notable)
Dalatangi	Iceland	Record daily precipitation	70.3 mm (2.8 in)	39 of 100 (Notable)
Bethlehem	United States	Record low minimum temperature	1.7 C (35.1 F)	39 of 100 (Notable)
Lindong	China	Record daily precipitation	31.7 mm (1.2 in)	38 of 100 (Notable)
Liepaja	Latvia	Record low minimum temperature	4.9 C (40.8 F)	38 of 100 (Notable)
Deland 1 SSE	United States	Record daily precipitation	77.5 mm (3.1 in)	37 of 100 (Notable)
Orono	United States	Record low minimum temperature	2.2 C (36.0 F)	37 of 100 (Notable)
Haverhill	United States	Record low minimum temperature	2.8 C (37.0 F)	37 of 100 (Notable)
Lowell	United States	Record low minimum temperature	5.0 C (41.0 F)	37 of 100 (Notable)
Griffiss AFB	United States	Record low minimum temperature	3.9 C (39.0 F)	37 of 100 (Notable)
Broken Bow 2 W	United States	Record high minimum temperature	21.7 C (71.1 F)	36 of 100 (Notable)
Heinsberg-Schleiden	Germany	Record daily precipitation	25.1 mm (1.0 in)	35 of 100 (Notable)
Lawrence	United States	Record low minimum temperature	5.6 C (42.1 F)	35 of 100 (Notable)
Auburn	United States	Record low minimum temperature	3.9 C (39.0 F)	35 of 100 (Notable)
Little Falls City Rsch	United States	Record low minimum temperature	3.9 C (39.0 F)	35 of 100 (Notable)
Olsdorf	Germany	Record daily precipitation	64.3 mm (2.5 in)	34 of 100 (Routine)
Grafton	United States	Record low minimum temperature	-1.1 C (30.0 F)	34 of 100 (Routine)
Babson Park 1 ENE	United States	Record daily precipitation	82.6 mm (3.3 in)	32 of 100 (Routine)
Farmington	United States	Record low minimum temperature	-0.6 C (30.9 F)	32 of 100 (Routine)
Liberty 1 NE	United States	Record low minimum temperature	3.9 C (39.0 F)	32 of 100 (Routine)
Orroroo (Yalpara)	Australia	Record daily precipitation	26.0 mm (1.0 in)	31 of 100 (Routine)
Oderen	France	Record daily precipitation	39.0 mm (1.5 in)	31 of 100 (Routine)
Zavitaja	Russia	Record daily precipitation	57.9 mm (2.3 in)	31 of 100 (Routine)
Snowflake	United States	Record high minimum temperature	16.7 C (62.1 F)	31 of 100 (Routine)
Ft Kent	United States	Record low maximum temperature	10.6 C (51.1 F)	31 of 100 (Routine)
Michelstadt	Germany	Record daily precipitation	31.1 mm (1.2 in)	30 of 100 (Routine)
Dortmund	Germany	Record daily precipitation	47.5 mm (1.9 in)	29 of 100 (Routine)
Bratoljubovka	Russia	Record daily precipitation	45.5 mm (1.8 in)	29 of 100 (Routine)
Anvil Rch	United States	Record low maximum temperature	25.0 C (77.0 F)	29 of 100 (Routine)
Sodus 1W	United States	Record low minimum temperature	2.8 C (37.0 F)	29 of 100 (Routine)
Mulyungarie	Australia	Record daily precipitation	26.0 mm (1.0 in)	28 of 100 (Routine)
Amsterdam (Pol)	South Africa	Record daily precipitation	28.0 mm (1.1 in)	28 of 100 (Routine)
Hilton Head	United States	Record daily precipitation	77.5 mm (3.1 in)	28 of 100 (Routine)
Mauna Loa Slope Obs 39	United States	Record daily precipitation	37.6 mm (1.5 in)	28 of 100 (Routine)
Eichstatt-Landershofen	Germany	Record daily precipitation	33.3 mm (1.3 in)	27 of 100 (Routine)
Verhnjaja Tom	Russia	Record daily precipitation	48.8 mm (1.9 in)	27 of 100 (Routine)
Vladikavkaz	Russia	Record low minimum temperature	6.9 C (44.4 F)	27 of 100 (Routine)

Counts by Type and Timescale

685 records

Records set or tied on 4 September 1987 by type: Highest daily maximum 82, Lowest daily maximum 81, Highest daily minimum 109, Lowest daily minimum 197, Heaviest daily rainfall 216.

Records on 4 September 1987 by type
Record type	Records
Highest daily maximum	82
Lowest daily maximum	81
Highest daily minimum	109
Lowest daily minimum	197
Heaviest daily rainfall	216
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 September 1987 by timescale: all-time 5, monthly 22, daily 658.

How Much Records Were Beaten By

514 broken records

Margins by which the 514 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 87.0. Ties are not counted.

Top 20 by Significance

4 September 1987

Top 20 records on 4 September 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 September 1987	Bad Salzuflen, DE	monthly rain	63.2 mm (2.5 in)	25.1 mm (1.0 in)	50 years	70 of 100 (Major)
4 September 1987	Hannover, DE	daily rain	43.0 mm (1.7 in)	33.7 mm (1.3 in)	48 years	59 of 100 (Notable)
4 September 1987	Denekamp, NL	all-time rain	71.3 mm (2.8 in)	6.5 mm (0.26 in)	59 years	56 of 100 (Notable)
4 September 1987	Ust-Umalta, RU	daily rain	64.8 mm (2.6 in)	43.7 mm (1.7 in)	38 years	56 of 100 (Notable)
4 September 1987	Koloko Rsvr 1137, US	monthly rain	95.5 mm (3.8 in)	21.8 mm (0.9 in)	42 years	53 of 100 (Notable)
4 September 1987	Lathen, DE	daily rain	40.7 mm (1.6 in)	32.7 mm (1.3 in)	22 years	50 of 100 (Notable)
4 September 1987	Homburg/Saar, DE	daily rain	54.5 mm (2.1 in)	38.7 mm (1.5 in)	20 years	49 of 100 (Notable)
4 September 1987	Georgetown 2 E, US	daily rain	91.4 mm (3.6 in)	55.8 mm (2.2 in)	60 years	49 of 100 (Notable)
4 September 1987	Herford, DE	all-time rain	72.9 mm (2.9 in)	6.8 mm (0.27 in)	39 years	48 of 100 (Notable)
4 September 1987	Tucson WFO, US	daily low max	26.1 C (79.0 F)	4.5 C (8.1 F)	81 years	47 of 100 (Notable)
4 September 1987	Gernrode, DE	daily rain	26.2 mm (1.0 in)	23.6 mm (0.9 in)	24 years	46 of 100 (Notable)
4 September 1987	Heilbronn, DE	daily rain	34.5 mm (1.4 in)	24.8 mm (1.0 in)	9 years	46 of 100 (Notable)
4 September 1987	Choshi, JP	daily rain	119.0 mm (4.7 in)	87.0 mm (3.4 in)	12 years	46 of 100 (Notable)
4 September 1987	Yichang, CN	daily rain	106.1 mm (4.2 in)	75.2 mm (3.0 in)	8 years	45 of 100 (Notable)
4 September 1987	Bad Ems, DE	daily rain	38.2 mm (1.5 in)	28.0 mm (1.1 in)	2 years	45 of 100 (Notable)
4 September 1987	Bad Liebenzell, DE	daily rain	28.3 mm (1.1 in)	16.6 mm (0.7 in)	25 years	42 of 100 (Notable)
4 September 1987	Nordhorn, DE	all-time rain	62.0 mm (2.4 in)	4.2 mm (0.17 in)	35 years	42 of 100 (Notable)
4 September 1987	Nuevo Ixcatlan, MX	monthly low min	16.7 C (62.1 F)	2.2 C (4.0 F)	30 years	42 of 100 (Notable)
4 September 1987	Bundabaroo, AU	daily rain	38.0 mm (1.5 in)	20.2 mm (0.8 in)	61 years	41 of 100 (Notable)
4 September 1987	Aurich, DE	daily rain	27.0 mm (1.1 in)	21.1 mm (0.8 in)	12 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

1802 to 1987

Records set or tied on this calendar date in each year from 1802 to 1987. 1987 had 685 records.

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

Records on 09-04 in each year
Year	Records
1802	1
1805	1
1823	1
1833	1
1837	1
1839	1
1845	1
1847	1
1850	1
1854	1
1856	1
1857	1
1858	1
1861	1
1863	1
1864	1
1867	1
1868	1
1869	2
1871	1
1872	4
1874	1
1875	1
1877	1
1880	4
1881	1
1883	2
1885	3
1887	1
1888	2
1889	1
1890	1
1891	5
1894	4
1895	6
1896	1
1897	4
1898	9
1899	4
1900	1
1901	4
1902	4
1903	2
1904	7
1905	18
1906	16
1907	22
1908	9
1909	23
1910	91
1911	25
1912	29
1913	29
1914	19
1915	37
1916	24
1917	40
1918	96
1919	48
1920	105
1921	105
1922	62
1923	325
1924	167
1925	339
1926	256
1927	68
1928	341
1929	371
1930	102
1931	477
1932	429
1933	424
1934	393
1935	514
1936	309
1937	411
1938	236
1939	434
1940	287
1941	528
1942	323
1943	472
1944	341
1945	542
1946	431
1947	618
1948	409
1949	370
1950	642
1951	404
1952	645
1953	869
1954	372
1955	465
1956	586
1957	250
1958	384
1959	316
1960	552
1961	909
1962	733
1963	443
1964	507
1965	611
1966	428
1967	786
1968	546
1969	510
1970	644
1971	717
1972	513
1973	530
1974	2,279
1975	432
1976	582
1977	386
1978	940
1979	461
1980	355
1981	582
1982	617
1983	1,040
1984	1,107
1985	915
1986	663
1987	685
1988	1,259
1989	681
1990	787
1991	708
1992	1,132
1993	859
1994	1,001
1995	1,287
1996	907
1997	1,452
1998	1,564
1999	1,479
2000	1,336
2001	833
2002	767
2003	1,094
2004	898
2005	998
2006	1,268
2007	1,077
2008	1,335
2009	914
2010	1,804
2011	1,310
2012	1,209
2013	630
2014	461
2015	893
2016	597
2017	881
2018	758
2019	616
2020	957
2021	544
2022	1,256
2023	1,290
2024	985
2025	635
2026	1,222

Download the Data

Data for records on 1987-09-04: 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	490
20 to 40	17
40 to 60	5
60 to 80	1
80 to 100	1