Weather Records on 18 September 1987

1,244 weather records were set or tied worldwide on 18 September 1987. Highest significance: Bratsk, RU.

Key Facts for 18 September 1987

On 18 September 1987, 1,244 weather records were set or tied at long-record stations worldwide.
684 were record highs and 129 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 59 monthly and 1,185 daily.
Bratsk set a daily record precipitation of 27.2 mm (1.1 in) on 18 September 1987.
Across 163 earlier years (1803 to 2026) the same calendar date averaged 416 records.

Record Map

1,244 stations

1,244 station records on 18 September 1987 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 September 1987: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bratsk	Russia	Record daily precipitation	27.2 mm (1.1 in)	71 of 100 (Major)
Mohonk Lake	United States	Record daily precipitation	95.0 mm (3.7 in)	64 of 100 (Major)
Park Rapids Muni AP	United States	Record daily precipitation	59.9 mm (2.4 in)	60 of 100 (Major)
Orlinga	Russia	Record daily precipitation	29.8 mm (1.2 in)	52 of 100 (Notable)
Okay	United States	Record daily precipitation	101.9 mm (4.0 in)	52 of 100 (Notable)
Tecoman (Dge)	Mexico	Record daily precipitation	216.9 mm (8.5 in)	51 of 100 (Notable)
Col du Grand St-Bernard	Switzerland	Record high maximum temperature	18.6 C (65.5 F)	48 of 100 (Notable)
Eschwege	Germany	Record daily precipitation	33.7 mm (1.3 in)	47 of 100 (Notable)
Cuautla (Smn)	Mexico	Record daily precipitation	76.5 mm (3.0 in)	47 of 100 (Notable)
Campolide	Brazil	Record daily precipitation	64.0 mm (2.5 in)	46 of 100 (Notable)
Asuncion Nochixtlan	Mexico	Record daily precipitation	70.4 mm (2.8 in)	46 of 100 (Notable)
Walker	United States	Record daily precipitation	52.1 mm (2.1 in)	46 of 100 (Notable)
Witzenhausen	Germany	Record daily precipitation	33.0 mm (1.3 in)	45 of 100 (Notable)
Bispgarden 1	Sweden	Record daily precipitation	26.5 mm (1.0 in)	45 of 100 (Notable)
Nurnberg	Germany	Record high minimum temperature	16.8 C (62.2 F)	43 of 100 (Notable)
Jena Sternwarte	Germany	Record high minimum temperature	16.4 C (61.5 F)	42 of 100 (Notable)
Edsele	Sweden	Record daily precipitation	26.3 mm (1.0 in)	42 of 100 (Notable)
Auburn	United States	Record daily precipitation	38.6 mm (1.5 in)	42 of 100 (Notable)
Kassel	Germany	Record daily precipitation	26.3 mm (1.0 in)	41 of 100 (Notable)
Linguere	Senegal	Record daily precipitation	62.0 mm (2.4 in)	41 of 100 (Notable)
Vega de Alatorre	Mexico	Record low minimum temperature	12.8 C (55.0 F)	40 of 100 (Notable)
Batopilas (Smn)	Mexico	Record daily precipitation	48.8 mm (1.9 in)	39 of 100 (Notable)
Jarrell	United States	Record daily precipitation	64.8 mm (2.6 in)	39 of 100 (Notable)
Nueva Esperanza	Mexico	Record high minimum temperature	25.6 C (78.1 F)	38 of 100 (Notable)
Liberty 1 NE	United States	Record daily precipitation	41.7 mm (1.6 in)	38 of 100 (Notable)
Derry 4 SW	United States	Record daily precipitation	54.6 mm (2.1 in)	38 of 100 (Notable)
El Dorado Goodwin Fld	United States	Record daily precipitation	35.3 mm (1.4 in)	38 of 100 (Notable)
Lampasas	United States	Record daily precipitation	28.4 mm (1.1 in)	37 of 100 (Notable)
Bet-El	South Africa	Record daily precipitation	28.0 mm (1.1 in)	36 of 100 (Notable)
Perryton	United States	Record daily precipitation	38.9 mm (1.5 in)	36 of 100 (Notable)
Gage AP	United States	Record daily precipitation	29.2 mm (1.1 in)	36 of 100 (Notable)
Middelpos (Pol)	South Africa	Record daily precipitation	25.0 mm (1.0 in)	35 of 100 (Notable)
Goldthwaite 1 WSW	United States	Record daily precipitation	56.9 mm (2.2 in)	35 of 100 (Notable)
Low Head (Comparison)	Australia	Record high maximum temperature	18.0 C (64.4 F)	34 of 100 (Routine)
Goodwell Rsch STN	United States	Record daily precipitation	31.8 mm (1.3 in)	34 of 100 (Routine)
Chugwater	United States	Record low minimum temperature	-5.0 C (23.0 F)	34 of 100 (Routine)
Griffiss AFB	United States	Record daily precipitation	42.2 mm (1.7 in)	34 of 100 (Routine)
Munchen-Nymphenburg	Germany	Record high minimum temperature	16.3 C (61.3 F)	33 of 100 (Routine)
El Salto (Smn)	Mexico	Record low maximum temperature	17.8 C (64.0 F)	33 of 100 (Routine)
Cloudskraal	South Africa	Record daily precipitation	27.0 mm (1.1 in)	33 of 100 (Routine)
Nieuwoudville (Pol)	South Africa	Record daily precipitation	27.0 mm (1.1 in)	33 of 100 (Routine)
San Simon	United States	Record low maximum temperature	30.0 C (86.0 F)	33 of 100 (Routine)
Evart	United States	Record daily precipitation	78.0 mm (3.1 in)	33 of 100 (Routine)
Bolivar	United States	Record daily precipitation	42.2 mm (1.7 in)	33 of 100 (Routine)
Hennessey 4 ESE	United States	Record daily precipitation	30.7 mm (1.2 in)	33 of 100 (Routine)
Darrouzett	United States	Record daily precipitation	50.8 mm (2.0 in)	33 of 100 (Routine)
Harlingen	United States	Record high minimum temperature	26.1 C (79.0 F)	33 of 100 (Routine)
Nueva Esperanza	Mexico	Record high maximum temperature	37.2 C (99.0 F)	32 of 100 (Routine)
A Coruna	Spain	Record high minimum temperature	21.2 C (70.2 F)	32 of 100 (Routine)
Saentis	Switzerland	Record high minimum temperature	9.8 C (49.6 F)	32 of 100 (Routine)
New London Lock #22	United States	Record daily precipitation	43.2 mm (1.7 in)	32 of 100 (Routine)
Purcell 2 SW	United States	Record daily precipitation	65.8 mm (2.6 in)	32 of 100 (Routine)
Booker	United States	Record daily precipitation	49.0 mm (1.9 in)	32 of 100 (Routine)
Wurzburg	Germany	Record high minimum temperature	17.9 C (64.2 F)	31 of 100 (Routine)
Schwarzburg	Germany	Record daily precipitation	25.0 mm (1.0 in)	31 of 100 (Routine)
Arteaga	Mexico	Record high minimum temperature	21.7 C (71.1 F)	31 of 100 (Routine)
Huetamo	Mexico	Record high maximum temperature	40.6 C (105.1 F)	31 of 100 (Routine)
Vaso la Villita (Cfe)	Mexico	Record low maximum temperature	25.6 C (78.1 F)	31 of 100 (Routine)
Poronajsk	Russia	Record low minimum temperature	1.3 C (34.3 F)	31 of 100 (Routine)
Dal	Sweden	Record daily precipitation	30.4 mm (1.2 in)	31 of 100 (Routine)

Counts by Type and Timescale

1,244 records

Records set or tied on 18 September 1987 by type: Highest daily maximum 284, Lowest daily maximum 65, Highest daily minimum 400, Lowest daily minimum 64, Heaviest daily rainfall 430, Deepest snow cover 1.

Records on 18 September 1987 by type
Record type	Records
Highest daily maximum	284
Lowest daily maximum	65
Highest daily minimum	400
Lowest daily minimum	64
Heaviest daily rainfall	430
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 18 September 1987 by timescale: all-time 0, monthly 59, daily 1,185.

How Much Records Were Beaten By

1,006 broken records

Margins by which the 1,006 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 86.7. Ties are not counted.

Top 20 by Significance

18 September 1987

Top 20 records on 18 September 1987 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 September 1987	Bratsk, RU	daily rain	27.2 mm (1.1 in)	15.2 mm (0.6 in)	76 years	71 of 100 (Major)
18 September 1987	Mohonk Lake, US	daily rain	95.0 mm (3.7 in)	50.0 mm (2.0 in)	87 years	64 of 100 (Major)
18 September 1987	Park Rapids Muni AP, US	daily rain	59.9 mm (2.4 in)	38.3 mm (1.5 in)	36 years	60 of 100 (Major)
18 September 1987	Orlinga, RU	daily rain	29.8 mm (1.2 in)	19.3 mm (0.8 in)	25 years	52 of 100 (Notable)
18 September 1987	Okay, US	daily rain	101.9 mm (4.0 in)	86.7 mm (3.4 in)	16 years	52 of 100 (Notable)
18 September 1987	Tecoman (Dge), MX	monthly rain	216.9 mm (8.5 in)	76.9 mm (3.0 in)	19 years	51 of 100 (Notable)
18 September 1987	Col du Grand St-Bernard, CH	daily high max	18.6 C (65.5 F)	3.6 C (6.5 F)	105 years	48 of 100 (Notable)
18 September 1987	Eschwege, DE	daily rain	33.7 mm (1.3 in)	29.7 mm (1.2 in)	12 years	47 of 100 (Notable)
18 September 1987	Cuautla (Smn), MX	daily rain	76.5 mm (3.0 in)	41.7 mm (1.6 in)	41 years	47 of 100 (Notable)
18 September 1987	Campolide, BR	daily rain	64.0 mm (2.5 in)	49.4 mm (1.9 in)	8 years	46 of 100 (Notable)
18 September 1987	Asuncion Nochixtlan, MX	daily rain	70.4 mm (2.8 in)	52.6 mm (2.1 in)	2 years	46 of 100 (Notable)
18 September 1987	Walker, US	daily rain	52.1 mm (2.1 in)	29.2 mm (1.1 in)	36 years	46 of 100 (Notable)
18 September 1987	Witzenhausen, DE	daily rain	33.0 mm (1.3 in)	25.1 mm (1.0 in)	5 years	45 of 100 (Notable)
18 September 1987	Bispgarden 1, SE	daily rain	26.5 mm (1.0 in)	14.5 mm (0.6 in)	40 years	45 of 100 (Notable)
18 September 1987	Nurnberg, DE	daily high min	16.8 C (62.2 F)	1.4 C (2.5 F)	107 years	43 of 100 (Notable)
18 September 1987	Jena Sternwarte, DE	daily high min	16.4 C (61.5 F)	0.8 C (1.4 F)	149 years	42 of 100 (Notable)
18 September 1987	Edsele, SE	daily rain	26.3 mm (1.0 in)	21.8 mm (0.9 in)	6 years	42 of 100 (Notable)
18 September 1987	Auburn, US	daily rain	38.6 mm (1.5 in)	7.4 mm (0.29 in)	88 years	42 of 100 (Notable)
18 September 1987	Kassel, DE	daily rain	26.3 mm (1.0 in)	17.2 mm (0.7 in)	5 years	41 of 100 (Notable)
18 September 1987	Linguere, SN	daily rain	62.0 mm (2.4 in)	32.7 mm (1.3 in)	41 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

1803 to 1987

Records set or tied on this calendar date in each year from 1803 to 1987. 1987 had 1,244 records.

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

Records on 09-18 in each year
Year	Records
1803	1
1811	1
1814	1
1819	1
1829	1
1832	1
1834	1
1835	1
1837	2
1847	2
1848	1
1849	1
1851	4
1859	1
1861	1
1865	1
1869	1
1871	1
1875	1
1876	2
1877	1
1879	1
1880	1
1881	1
1882	1
1885	1
1886	4
1889	6
1890	1
1891	1
1893	4
1894	2
1895	2
1896	4
1897	3
1898	5
1899	3
1900	2
1901	10
1902	8
1903	58
1904	6
1905	22
1906	16
1907	4
1908	11
1909	17
1910	5
1911	8
1912	43
1913	44
1914	56
1915	41
1916	58
1917	99
1918	57
1919	48
1920	56
1921	213
1922	45
1923	114
1924	62
1925	269
1926	205
1927	189
1928	114
1929	309
1930	124
1931	429
1932	226
1933	370
1934	188
1935	281
1936	155
1937	422
1938	373
1939	190
1940	402
1941	318
1942	1,001
1943	624
1944	503
1945	732
1946	576
1947	927
1948	427
1949	356
1950	370
1951	320
1952	340
1953	245
1954	446
1955	672
1956	587
1957	429
1958	491
1959	829
1960	351
1961	478
1962	360
1963	453
1964	282
1965	1,172
1966	498
1967	357
1968	763
1969	424
1970	377
1971	1,245
1972	691
1973	593
1974	559
1975	976
1976	615
1977	619
1978	1,162
1979	709
1980	652
1981	1,671
1982	603
1983	936
1984	951
1985	636
1986	730
1987	1,244
1988	997
1989	778
1990	904
1991	1,377
1992	821
1993	747
1994	852
1995	935
1996	1,237
1997	935
1998	1,038
1999	583
2000	1,146
2001	993
2002	828
2003	815
2004	1,027
2005	781
2006	1,309
2007	670
2008	697
2009	692
2010	1,040
2011	1,050
2012	922
2013	666
2014	682
2015	934
2016	893
2017	518
2018	1,200
2019	768
2020	682
2021	582
2022	613
2023	639
2024	687
2025	471
2026	864

Download the Data

Data for records on 1987-09-18: 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	962
20 to 40	35
40 to 60	7
60 to 80	1
80 to 100	1